diff --git a/Android.mk b/Android.mk
index 9d113d9..78ea02a 100644
--- a/Android.mk
+++ b/Android.mk
@@ -23,12 +23,7 @@
 LOCAL_USE_AAPT2 := true
 LOCAL_AAPT2_ONLY := true
 LOCAL_MODULE_TAGS := optional
-
-ifneq (,$(wildcard frameworks/base))
-    LOCAL_STATIC_JAVA_LIBRARIES:= PluginCoreLib
-else
-    LOCAL_STATIC_JAVA_LIBRARIES:= libPluginCore
-endif
+LOCAL_STATIC_JAVA_LIBRARIES:= PluginCoreLib
 
 LOCAL_SRC_FILES := \
     $(call all-java-files-under, src_plugins)
@@ -151,11 +146,10 @@
 LOCAL_AAPT2_ONLY := true
 LOCAL_MODULE_TAGS := optional
 
+LOCAL_STATIC_JAVA_LIBRARIES := SystemUISharedLib launcherprotosnano
 ifneq (,$(wildcard frameworks/base))
-  LOCAL_STATIC_JAVA_LIBRARIES := SystemUISharedLib launcherprotosnano
   LOCAL_PRIVATE_PLATFORM_APIS := true
 else
-  LOCAL_STATIC_JAVA_LIBRARIES := libSharedSystemUI libLauncherProtos
   LOCAL_SDK_VERSION := system_current
   LOCAL_MIN_SDK_VERSION := 26
 endif
@@ -224,11 +218,10 @@
 LOCAL_USE_AAPT2 := true
 LOCAL_MODULE_TAGS := optional
 
+LOCAL_STATIC_JAVA_LIBRARIES := SystemUISharedLib launcherprotosnano
 ifneq (,$(wildcard frameworks/base))
-  LOCAL_STATIC_JAVA_LIBRARIES := SystemUISharedLib launcherprotosnano
   LOCAL_PRIVATE_PLATFORM_APIS := true
 else
-  LOCAL_STATIC_JAVA_LIBRARIES := libSharedSystemUI libLauncherProtos
   LOCAL_SDK_VERSION := system_current
   LOCAL_MIN_SDK_VERSION := 26
 endif
@@ -271,11 +264,10 @@
 LOCAL_USE_AAPT2 := true
 LOCAL_MODULE_TAGS := optional
 
+LOCAL_STATIC_JAVA_LIBRARIES := SystemUISharedLib launcherprotosnano
 ifneq (,$(wildcard frameworks/base))
-  LOCAL_STATIC_JAVA_LIBRARIES := SystemUISharedLib launcherprotosnano
   LOCAL_PRIVATE_PLATFORM_APIS := true
 else
-  LOCAL_STATIC_JAVA_LIBRARIES := libSharedSystemUI libLauncherProtos
   LOCAL_SDK_VERSION := system_current
   LOCAL_MIN_SDK_VERSION := 26
 endif
diff --git a/AndroidManifest-common.xml b/AndroidManifest-common.xml
index 8db875b..555cc73 100644
--- a/AndroidManifest-common.xml
+++ b/AndroidManifest-common.xml
@@ -169,7 +169,7 @@
         <activity
             android:name="com.android.launcher3.settings.SettingsActivity"
             android:label="@string/settings_button_text"
-            android:theme="@android:style/Theme.DeviceDefault.Settings"
+            android:theme="@style/HomeSettingsTheme"
             android:autoRemoveFromRecents="true">
             <intent-filter>
                 <action android:name="android.intent.action.APPLICATION_PREFERENCES" />
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
new file mode 100644
index 0000000..f3db20e
--- /dev/null
+++ b/PREUPLOAD.cfg
@@ -0,0 +1,2 @@
+[Hook Scripts]
+checkstyle_hook = ${REPO_ROOT}/prebuilts/checkstyle/checkstyle.py --sha ${PREUPLOAD_COMMIT}
diff --git a/SecondaryDisplayLauncher/res/values-ne/strings.xml b/SecondaryDisplayLauncher/res/values-ne/strings.xml
index 6bcff21..9a5b0a0 100644
--- a/SecondaryDisplayLauncher/res/values-ne/strings.xml
+++ b/SecondaryDisplayLauncher/res/values-ne/strings.xml
@@ -20,6 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="couldnt_launch" msgid="7873588052226763866">"उक्त क्रियाकलाप सुरु गर्न सकिएन"</string>
-    <string name="add_app_shortcut" msgid="2756755330707509435">"एपको सर्टकट थप्नुहोस्‌"</string>
+    <string name="add_app_shortcut" msgid="2756755330707509435">"अनुप्रयोगको सर्टकट थप्नुहोस्‌"</string>
     <string name="set_wallpaper" msgid="6475195450505435904">"वालपेपर सेट गर्नुहोस्"</string>
 </resources>
diff --git a/go/quickstep/res/values/override.xml b/go/quickstep/res/values/override.xml
index 7636fb3..bb267a3 100644
--- a/go/quickstep/res/values/override.xml
+++ b/go/quickstep/res/values/override.xml
@@ -22,5 +22,7 @@
   <string name="instant_app_resolver_class" translatable="false">com.android.quickstep.InstantAppResolverImpl</string>
 
   <string name="main_process_initializer_class" translatable="false">com.android.quickstep.QuickstepProcessInitializer</string>
+
+  <string name="user_event_dispatcher_class" translatable="false">com.android.quickstep.logging.UserEventDispatcherExtension</string>
 </resources>
 
diff --git a/go/quickstep/src/com/android/quickstep/OverviewCommandHelper.java b/go/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
index 0fa3d86..216972c 100644
--- a/go/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
+++ b/go/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
@@ -15,8 +15,8 @@
  */
 package com.android.quickstep;
 
-import static com.android.systemui.shared.system.ActivityManagerWrapper
-        .CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
 
 import android.annotation.TargetApi;
 import android.content.Context;
@@ -25,7 +25,6 @@
 import android.view.ViewConfiguration;
 
 import com.android.launcher3.BaseDraggingActivity;
-import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.logging.UserEventDispatcher;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.quickstep.ActivityControlHelper.ActivityInitListener;
@@ -43,7 +42,6 @@
     private final Context mContext;
     private final ActivityManagerWrapper mAM;
     private final RecentsModel mRecentsModel;
-    private final MainThreadExecutor mMainThreadExecutor;
     private final OverviewComponentObserver mOverviewComponentObserver;
 
     private long mLastToggleTime;
@@ -51,7 +49,6 @@
     public OverviewCommandHelper(Context context, OverviewComponentObserver observer) {
         mContext = context;
         mAM = ActivityManagerWrapper.getInstance();
-        mMainThreadExecutor = new MainThreadExecutor();
         mRecentsModel = RecentsModel.INSTANCE.get(mContext);
         mOverviewComponentObserver = observer;
     }
@@ -63,19 +60,19 @@
         }
 
         mAM.closeSystemWindows(CLOSE_SYSTEM_WINDOWS_REASON_RECENTS);
-        mMainThreadExecutor.execute(new RecentsActivityCommand<>());
+        MAIN_EXECUTOR.execute(new RecentsActivityCommand<>());
     }
 
     public void onOverviewShown(boolean triggeredFromAltTab) {
-        mMainThreadExecutor.execute(new ShowRecentsCommand());
+        MAIN_EXECUTOR.execute(new ShowRecentsCommand());
     }
 
     public void onOverviewHidden() {
-        mMainThreadExecutor.execute(new HideRecentsCommand());
+        MAIN_EXECUTOR.execute(new HideRecentsCommand());
     }
 
     public void onTip(int actionType, int viewType) {
-        mMainThreadExecutor.execute(() ->
+        MAIN_EXECUTOR.execute(() ->
                 UserEventDispatcher.newInstance(mContext).logActionTip(actionType, viewType));
     }
 
@@ -161,7 +158,7 @@
             // Otherwise, start overview.
             mListener = mHelper.createActivityInitListener(provider::onActivityReady);
             mListener.registerAndStartActivity(mOverviewComponentObserver.getOverviewIntent(),
-                    provider, mContext, mMainThreadExecutor.getHandler(),
+                    provider, mContext, MAIN_EXECUTOR.getHandler(),
                     provider.getRecentsLaunchDuration());
         }
 
diff --git a/go/quickstep/src/com/android/quickstep/TouchInteractionService.java b/go/quickstep/src/com/android/quickstep/TouchInteractionService.java
index 577b175..19dd82f 100644
--- a/go/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/go/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -34,8 +34,6 @@
 
 import com.android.launcher3.Utilities;
 import com.android.launcher3.compat.UserManagerCompat;
-import com.android.launcher3.util.LooperExecutor;
-import com.android.launcher3.util.UiThreadHelper;
 import com.android.systemui.shared.recents.IOverviewProxy;
 import com.android.systemui.shared.recents.ISystemUiProxy;
 
@@ -139,9 +137,6 @@
         return sConnected;
     }
 
-    public static final LooperExecutor BACKGROUND_EXECUTOR =
-            new LooperExecutor(UiThreadHelper.getBackgroundLooper());
-
     private RecentsModel mRecentsModel;
     private OverviewComponentObserver mOverviewComponentObserver;
     private OverviewCommandHelper mOverviewCommandHelper;
diff --git a/go/quickstep/src/com/android/quickstep/util/ShelfPeekAnim.java b/go/quickstep/src/com/android/quickstep/util/ShelfPeekAnim.java
new file mode 100644
index 0000000..fb89013
--- /dev/null
+++ b/go/quickstep/src/com/android/quickstep/util/ShelfPeekAnim.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.util;
+
+import com.android.launcher3.Launcher;
+
+/** Empty class, only exists so that l3goWithQuickstepIconRecentsDebug compiles. */
+public class ShelfPeekAnim {
+    public ShelfPeekAnim(Launcher launcher) {
+    }
+
+    public enum ShelfAnimState {
+    }
+
+    public boolean isPeeking() {
+        return false;
+    }
+}
diff --git a/go/src/com/android/launcher3/model/LoaderResults.java b/go/src/com/android/launcher3/model/LoaderResults.java
index b82f362..26c3313 100644
--- a/go/src/com/android/launcher3/model/LoaderResults.java
+++ b/go/src/com/android/launcher3/model/LoaderResults.java
@@ -16,9 +16,8 @@
 
 package com.android.launcher3.model;
 
-import com.android.launcher3.AllAppsList;
 import com.android.launcher3.LauncherAppState;
-import com.android.launcher3.LauncherModel.Callbacks;
+import com.android.launcher3.model.BgDataModel.Callbacks;
 
 import java.lang.ref.WeakReference;
 
diff --git a/go/src/com/android/launcher3/shortcuts/DeepShortcutManager.java b/go/src/com/android/launcher3/shortcuts/DeepShortcutManager.java
index ee113df..42b1194 100644
--- a/go/src/com/android/launcher3/shortcuts/DeepShortcutManager.java
+++ b/go/src/com/android/launcher3/shortcuts/DeepShortcutManager.java
@@ -27,34 +27,23 @@
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.notification.NotificationKeyData;
 
-import java.util.Collections;
+import java.util.ArrayList;
 import java.util.List;
 
 /**
  * Performs operations related to deep shortcuts, such as querying for them, pinning them, etc.
  */
 public class DeepShortcutManager {
-    private static DeepShortcutManager sInstance;
-    private static final Object sInstanceLock = new Object();
+
+    private static final DeepShortcutManager sInstance = new DeepShortcutManager();
 
     public static DeepShortcutManager getInstance(Context context) {
-        synchronized (sInstanceLock) {
-            if (sInstance == null) {
-                sInstance = new DeepShortcutManager(context.getApplicationContext());
-            }
-            return sInstance;
-        }
+        return sInstance;
     }
 
-    private DeepShortcutManager(Context context) {
-    }
+    private final QueryResult mFailure = new QueryResult();
 
-    public boolean wasLastCallSuccess() {
-        return false;
-    }
-
-    public void onShortcutsChanged(List<ShortcutInfo> shortcuts) {
-    }
+    private DeepShortcutManager() { }
 
     /**
      * Queries for the shortcuts with the package name and provided ids.
@@ -62,18 +51,18 @@
      * This method is intended to get the full details for shortcuts when they are added or updated,
      * because we only get "key" fields in onShortcutsChanged().
      */
-    public List<ShortcutInfo> queryForFullDetails(String packageName,
+    public QueryResult queryForFullDetails(String packageName,
             List<String> shortcutIds, UserHandle user) {
-        return Collections.emptyList();
+        return mFailure;
     }
 
     /**
      * Gets all the manifest and dynamic shortcuts associated with the given package and user,
      * to be displayed in the shortcuts container on long press.
      */
-    public List<ShortcutInfo> queryForShortcutsContainer(ComponentName activity,
+    public QueryResult queryForShortcutsContainer(ComponentName activity,
             UserHandle user) {
-        return Collections.emptyList();
+        return mFailure;
     }
 
     /**
@@ -103,20 +92,28 @@
      *
      * If packageName is null, returns all pinned shortcuts regardless of package.
      */
-    public List<ShortcutInfo> queryForPinnedShortcuts(String packageName, UserHandle user) {
-        return Collections.emptyList();
+    public QueryResult queryForPinnedShortcuts(String packageName, UserHandle user) {
+        return mFailure;
     }
 
-    public List<ShortcutInfo> queryForPinnedShortcuts(String packageName,
+    public QueryResult queryForPinnedShortcuts(String packageName,
             List<String> shortcutIds, UserHandle user) {
-        return Collections.emptyList();
+        return mFailure;
     }
 
-    public List<ShortcutInfo> queryForAllShortcuts(UserHandle user) {
-        return Collections.emptyList();
+    public QueryResult queryForAllShortcuts(UserHandle user) {
+        return mFailure;
     }
 
     public boolean hasHostPermission() {
         return false;
     }
+
+
+    public static class QueryResult extends ArrayList<ShortcutInfo> {
+
+        public boolean wasSuccess() {
+            return true;
+        }
+    }
 }
diff --git a/iconloaderlib/src/com/android/launcher3/icons/BaseIconFactory.java b/iconloaderlib/src/com/android/launcher3/icons/BaseIconFactory.java
index fc7d6b3..5c4f37c 100644
--- a/iconloaderlib/src/com/android/launcher3/icons/BaseIconFactory.java
+++ b/iconloaderlib/src/com/android/launcher3/icons/BaseIconFactory.java
@@ -22,6 +22,7 @@
 import android.os.Build;
 import android.os.Process;
 import android.os.UserHandle;
+
 import androidx.annotation.NonNull;
 
 /**
@@ -35,6 +36,8 @@
     static final boolean ATLEAST_OREO = Build.VERSION.SDK_INT >= Build.VERSION_CODES.O;
     static final boolean ATLEAST_P = Build.VERSION.SDK_INT >= Build.VERSION_CODES.P;
 
+    private static final float ICON_BADGE_SCALE = 0.444f;
+
     private final Rect mOldBounds = new Rect();
     protected final Context mContext;
     private final Canvas mCanvas;
@@ -168,22 +171,19 @@
             mCanvas.setBitmap(null);
         }
 
-        final Bitmap result;
-        if (user != null && !Process.myUserHandle().equals(user)) {
+        if (isInstantApp) {
+            badgeWithDrawable(bitmap, mContext.getDrawable(R.drawable.ic_instant_app_badge));
+        }
+        if (user != null) {
             BitmapDrawable drawable = new FixedSizeBitmapDrawable(bitmap);
             Drawable badged = mPm.getUserBadgedIcon(drawable, user);
             if (badged instanceof BitmapDrawable) {
-                result = ((BitmapDrawable) badged).getBitmap();
+                bitmap = ((BitmapDrawable) badged).getBitmap();
             } else {
-                result = createIconBitmap(badged, 1f);
+                bitmap = createIconBitmap(badged, 1f);
             }
-        } else if (isInstantApp) {
-            badgeWithDrawable(bitmap, mContext.getDrawable(R.drawable.ic_instant_app_badge));
-            result = bitmap;
-        } else {
-            result = bitmap;
         }
-        return BitmapInfo.fromBitmap(result, mDisableColorExtractor ? null : mColorExtractor);
+        return BitmapInfo.fromBitmap(bitmap, mDisableColorExtractor ? null : mColorExtractor);
     }
 
     public Bitmap createScaledBitmapWithoutShadow(Drawable icon, boolean shrinkNonAdaptiveIcons) {
@@ -254,7 +254,7 @@
      * Adds the {@param badge} on top of {@param target} using the badge dimensions.
      */
     public void badgeWithDrawable(Canvas target, Drawable badge) {
-        int badgeSize = mContext.getResources().getDimensionPixelSize(R.dimen.profile_badge_size);
+        int badgeSize = getBadgeSizeForIconSize(mIconBitmapSize);
         badge.setBounds(mIconBitmapSize - badgeSize, mIconBitmapSize - badgeSize,
                 mIconBitmapSize, mIconBitmapSize);
         badge.draw(target);
@@ -335,6 +335,13 @@
     }
 
     /**
+     * Returns the correct badge size given an icon size
+     */
+    public static int getBadgeSizeForIconSize(int iconSize) {
+        return (int) (ICON_BADGE_SCALE * iconSize);
+    }
+
+    /**
      * An extension of {@link BitmapDrawable} which returns the bitmap pixel size as intrinsic size.
      * This allows the badging to be done based on the action bitmap size rather than
      * the scaled bitmap size.
diff --git a/iconloaderlib/src/com/android/launcher3/icons/cache/BaseIconCache.java b/iconloaderlib/src/com/android/launcher3/icons/cache/BaseIconCache.java
index 36d1c3e..a886c0a 100644
--- a/iconloaderlib/src/com/android/launcher3/icons/cache/BaseIconCache.java
+++ b/iconloaderlib/src/com/android/launcher3/icons/cache/BaseIconCache.java
@@ -267,9 +267,13 @@
             entry = new CacheEntry();
             cachingLogic.loadIcon(mContext, object, entry);
         }
+        // Icon can't be loaded from cachingLogic, which implies alternative icon was loaded
+        // (e.g. fallback icon, default icon). So we drop here since there's no point in caching
+        // an empty entry.
+        if (entry.icon == null) return;
         entry.title = cachingLogic.getLabel(object);
         entry.contentDescription = mPackageManager.getUserBadgedLabel(entry.title, user);
-        mCache.put(key, entry);
+        if (cachingLogic.addToMemCache()) mCache.put(key, entry);
 
         ContentValues values = newContentValues(entry, entry.title.toString(),
                 componentName.getPackageName(), cachingLogic.getKeywords(object, mLocaleList));
@@ -308,20 +312,12 @@
             @NonNull ComponentName componentName, @NonNull UserHandle user,
             @NonNull Supplier<T> infoProvider, @NonNull CachingLogic<T> cachingLogic,
             boolean usePackageIcon, boolean useLowResIcon) {
-        return cacheLocked(componentName, user, infoProvider, cachingLogic, usePackageIcon,
-                useLowResIcon, true);
-    }
-
-    protected <T> CacheEntry cacheLocked(
-            @NonNull ComponentName componentName, @NonNull UserHandle user,
-            @NonNull Supplier<T> infoProvider, @NonNull CachingLogic<T> cachingLogic,
-            boolean usePackageIcon, boolean useLowResIcon, boolean addToMemCache) {
         assertWorkerThread();
         ComponentKey cacheKey = new ComponentKey(componentName, user);
         CacheEntry entry = mCache.get(cacheKey);
         if (entry == null || (entry.isLowRes() && !useLowResIcon)) {
             entry = new CacheEntry();
-            if (addToMemCache) {
+            if (cachingLogic.addToMemCache()) {
                 mCache.put(cacheKey, entry);
             }
 
diff --git a/iconloaderlib/src/com/android/launcher3/icons/cache/CachingLogic.java b/iconloaderlib/src/com/android/launcher3/icons/cache/CachingLogic.java
index 09f59b8..e40a9c2 100644
--- a/iconloaderlib/src/com/android/launcher3/icons/cache/CachingLogic.java
+++ b/iconloaderlib/src/com/android/launcher3/icons/cache/CachingLogic.java
@@ -41,4 +41,11 @@
     default String getKeywords(T object, LocaleList localeList) {
         return null;
     }
+
+    /**
+     * Returns true the object should be added to mem cache; otherwise returns false.
+     */
+    default boolean addToMemCache() {
+        return true;
+    }
 }
diff --git a/iconloaderlib/src/com/android/launcher3/icons/cache/IconCacheUpdateHandler.java b/iconloaderlib/src/com/android/launcher3/icons/cache/IconCacheUpdateHandler.java
index 3c71bd0..8224966 100644
--- a/iconloaderlib/src/com/android/launcher3/icons/cache/IconCacheUpdateHandler.java
+++ b/iconloaderlib/src/com/android/launcher3/icons/cache/IconCacheUpdateHandler.java
@@ -171,8 +171,8 @@
                 long updateTime = c.getLong(indexLastUpdate);
                 int version = c.getInt(indexVersion);
                 T app = componentMap.remove(component);
-                if (version == info.versionCode && updateTime == info.lastUpdateTime &&
-                        TextUtils.equals(c.getString(systemStateIndex),
+                if (version == info.versionCode && updateTime == info.lastUpdateTime
+                        && TextUtils.equals(c.getString(systemStateIndex),
                                 mIconCache.getIconSystemState(info.packageName))) {
 
                     if (mFilterMode == MODE_CLEAR_VALID_ITEMS) {
diff --git a/protos/launcher_log.proto b/protos/launcher_log.proto
index 49fd436..fd36d4b 100644
--- a/protos/launcher_log.proto
+++ b/protos/launcher_log.proto
@@ -118,6 +118,7 @@
   APP_USAGE_SETTINGS = 18;
   BACK_GESTURE = 19;
   UNDO = 20;
+  DISMISS_PREDICTION = 21;
 }
 
 enum TipType {
@@ -136,7 +137,8 @@
     AUTOMATED = 1;
     COMMAND = 2;
     TIP = 3;
-    // SOFT_KEYBOARD, HARD_KEYBOARD, ASSIST
+    SOFT_KEYBOARD = 4;
+    // HARD_KEYBOARD, ASSIST
   }
 
   enum Touch {
diff --git a/quickstep/AndroidManifest.xml b/quickstep/AndroidManifest.xml
index 5465480..826a275 100644
--- a/quickstep/AndroidManifest.xml
+++ b/quickstep/AndroidManifest.xml
@@ -88,6 +88,7 @@
         <activity android:name="com.android.quickstep.LockScreenRecentsActivity"
                   android:theme="@android:style/Theme.NoDisplay"
                   android:showOnLockScreen="true"
+                  android:taskAffinity="${packageName}.locktask"
                   android:directBootAware="true" />
 
     </application>
diff --git a/quickstep/recents_ui_overrides/res/values/override.xml b/quickstep/recents_ui_overrides/res/values/override.xml
index 1ddd3f5..ed3ba92 100644
--- a/quickstep/recents_ui_overrides/res/values/override.xml
+++ b/quickstep/recents_ui_overrides/res/values/override.xml
@@ -24,5 +24,7 @@
   <string name="app_launch_tracker_class" translatable="false">com.android.launcher3.appprediction.PredictionAppTracker</string>
 
   <string name="main_process_initializer_class" translatable="false">com.android.quickstep.QuickstepProcessInitializer</string>
+
+  <string name="user_event_dispatcher_class" translatable="false">com.android.quickstep.logging.UserEventDispatcherAppPredictionExtension</string>
 </resources>
 
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
index 7115943..114fd8e 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
@@ -17,9 +17,19 @@
 package com.android.launcher3;
 
 import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_X;
+import static com.android.launcher3.LauncherState.BACKGROUND_APP;
+import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
 import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.LauncherStateManager.ANIM_ALL;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_ALL_APPS_FADE;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_HOTSEAT_SCALE;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_HOTSEAT_TRANSLATE;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_VERTICAL_PROGRESS;
 import static com.android.launcher3.anim.Interpolators.AGGRESSIVE_EASE;
+import static com.android.launcher3.anim.Interpolators.DEACCEL_3;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
 import static com.android.quickstep.TaskViewUtils.findTaskViewToLaunch;
 import static com.android.quickstep.TaskViewUtils.getRecentsWindowAnimator;
 
@@ -27,10 +37,17 @@
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
+import android.animation.ValueAnimator;
 import android.content.Context;
 import android.view.View;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.android.launcher3.LauncherState.ScaleAndTranslation;
+import com.android.launcher3.allapps.AllAppsTransitionController;
 import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.anim.SpringAnimationBuilder;
 import com.android.quickstep.util.ClipAnimationHelper;
@@ -38,9 +55,6 @@
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-
 /**
  * A {@link QuickstepAppTransitionManagerImpl} that also implements recents transitions from
  * {@link RecentsView}.
@@ -50,6 +64,9 @@
     public static final int INDEX_SHELF_ANIM = 0;
     public static final int INDEX_RECENTS_FADE_ANIM = 1;
     public static final int INDEX_RECENTS_TRANSLATE_X_ANIM = 2;
+    public static final int INDEX_PAUSE_TO_OVERVIEW_ANIM = 3;
+
+    public static final long ATOMIC_DURATION_FROM_PAUSED_TO_OVERVIEW = 300;
 
     public LauncherAppTransitionManagerImpl(Context context) {
         super(context);
@@ -138,14 +155,43 @@
 
     @Override
     public int getStateElementAnimationsCount() {
-        return 3;
+        return 4;
     }
 
     @Override
     public Animator createStateElementAnimation(int index, float... values) {
         switch (index) {
-            case INDEX_SHELF_ANIM:
-                return mLauncher.getAllAppsController().createSpringAnimation(values);
+            case INDEX_SHELF_ANIM: {
+                AllAppsTransitionController aatc = mLauncher.getAllAppsController();
+                Animator springAnim = aatc.createSpringAnimation(values);
+
+                if ((OVERVIEW.getVisibleElements(mLauncher) & HOTSEAT_ICONS) != 0) {
+                    // Translate hotseat with the shelf until reaching overview.
+                    float overviewProgress = OVERVIEW.getVerticalProgress(mLauncher);
+                    ScaleAndTranslation sat = OVERVIEW.getHotseatScaleAndTranslation(mLauncher);
+                    float shiftRange = aatc.getShiftRange();
+                    if (values.length == 1) {
+                        values = new float[] {aatc.getProgress(), values[0]};
+                    }
+                    ValueAnimator hotseatAnim = ValueAnimator.ofFloat(values);
+                    hotseatAnim.addUpdateListener(anim -> {
+                        float progress = (Float) anim.getAnimatedValue();
+                        if (progress >= overviewProgress || mLauncher.isInState(BACKGROUND_APP)) {
+                            float hotseatShift = (progress - overviewProgress) * shiftRange;
+                            mLauncher.getHotseat().setTranslationY(hotseatShift + sat.translationY);
+                        }
+                    });
+                    hotseatAnim.setInterpolator(LINEAR);
+                    hotseatAnim.setDuration(springAnim.getDuration());
+
+                    AnimatorSet anim = new AnimatorSet();
+                    anim.play(hotseatAnim);
+                    anim.play(springAnim);
+                    return anim;
+                }
+
+                return springAnim;
+            }
             case INDEX_RECENTS_FADE_ANIM:
                 return ObjectAnimator.ofFloat(mLauncher.getOverviewPanel(),
                         RecentsView.CONTENT_ALPHA, values);
@@ -155,6 +201,20 @@
                         .setStiffness(250)
                         .setValues(values)
                         .build(mLauncher);
+            case INDEX_PAUSE_TO_OVERVIEW_ANIM: {
+                AnimatorSetBuilder builder = new AnimatorSetBuilder();
+                builder.setInterpolator(ANIM_VERTICAL_PROGRESS, OVERSHOOT_1_2);
+                builder.setInterpolator(ANIM_ALL_APPS_FADE, DEACCEL_3);
+                if ((OVERVIEW.getVisibleElements(mLauncher) & HOTSEAT_ICONS) != 0) {
+                    builder.setInterpolator(ANIM_HOTSEAT_SCALE, OVERSHOOT_1_2);
+                    builder.setInterpolator(ANIM_HOTSEAT_TRANSLATE, OVERSHOOT_1_2);
+                }
+                LauncherStateManager stateManager = mLauncher.getStateManager();
+                return stateManager.createAtomicAnimation(
+                        stateManager.getCurrentStableState(), OVERVIEW, builder,
+                        ANIM_ALL, ATOMIC_DURATION_FROM_PAUSED_TO_OVERVIEW);
+            }
+
             default:
                 return super.createStateElementAnimation(index, values);
         }
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/DynamicItemCache.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/DynamicItemCache.java
index 4ecc39c..65e69b6 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/DynamicItemCache.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/DynamicItemCache.java
@@ -17,6 +17,8 @@
 
 import static android.content.pm.PackageManager.MATCH_INSTANT;
 
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
@@ -30,8 +32,12 @@
 import android.util.ArrayMap;
 import android.util.Log;
 
+import androidx.annotation.MainThread;
+import androidx.annotation.Nullable;
+import androidx.annotation.UiThread;
+import androidx.annotation.WorkerThread;
+
 import com.android.launcher3.LauncherAppState;
-import com.android.launcher3.LauncherModel;
 import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.icons.LauncherIcons;
@@ -45,11 +51,6 @@
 import java.util.List;
 import java.util.Map;
 
-import androidx.annotation.MainThread;
-import androidx.annotation.Nullable;
-import androidx.annotation.UiThread;
-import androidx.annotation.WorkerThread;
-
 /**
  * Utility class which loads and caches predicted items like instant apps and shortcuts, before
  * they can be displayed on the UI
@@ -77,7 +78,7 @@
 
     public DynamicItemCache(Context context, Runnable onUpdateCallback) {
         mContext = context;
-        mWorker = new Handler(LauncherModel.getWorkerLooper(), this::handleWorkerMessage);
+        mWorker = new Handler(MODEL_EXECUTOR.getLooper(), this::handleWorkerMessage);
         mUiHandler = new Handler(Looper.getMainLooper(), this::handleUiMessage);
         mInstantAppResolver = InstantAppResolver.newInstance(context);
         mOnUpdateCallback = onUpdateCallback;
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionAppTracker.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionAppTracker.java
index 24fc61b..4c7943b 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionAppTracker.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionAppTracker.java
@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (C) 2019 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,6 +16,7 @@
 package com.android.launcher3.appprediction;
 
 import static com.android.launcher3.InvariantDeviceProfile.CHANGE_FLAG_GRID;
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 
 import android.annotation.TargetApi;
 import android.app.prediction.AppPredictionContext;
@@ -34,19 +35,25 @@
 import android.util.Log;
 
 import androidx.annotation.Nullable;
+import androidx.annotation.UiThread;
+import androidx.annotation.WorkerThread;
+
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.appprediction.PredictionUiStateManager.Client;
 import com.android.launcher3.model.AppLaunchTracker;
-import com.android.launcher3.util.UiThreadHelper;
+import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
+import com.android.systemui.plugins.AppLaunchEventsPlugin;
+import com.android.systemui.plugins.PluginListener;
 
-import androidx.annotation.UiThread;
-import androidx.annotation.WorkerThread;
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * Subclass of app tracker which publishes the data to the prediction engine and gets back results.
  */
 @TargetApi(Build.VERSION_CODES.Q)
-public class PredictionAppTracker extends AppLaunchTracker {
+public class PredictionAppTracker extends AppLaunchTracker
+        implements PluginListener<AppLaunchEventsPlugin> {
 
     private static final String TAG = "PredictionAppTracker";
     private static final boolean DBG = false;
@@ -58,6 +65,7 @@
 
     protected final Context mContext;
     private final Handler mMessageHandler;
+    private final List<AppLaunchEventsPlugin> mAppLaunchEventsPluginsList;
 
     // Accessed only on worker thread
     private AppPredictor mHomeAppPredictor;
@@ -65,10 +73,14 @@
 
     public PredictionAppTracker(Context context) {
         mContext = context;
-        mMessageHandler = new Handler(UiThreadHelper.getBackgroundLooper(), this::handleMessage);
+        mMessageHandler = new Handler(UI_HELPER_EXECUTOR.getLooper(), this::handleMessage);
         InvariantDeviceProfile.INSTANCE.get(mContext).addOnChangeListener(this::onIdpChanged);
 
         mMessageHandler.sendEmptyMessage(MSG_INIT);
+
+        mAppLaunchEventsPluginsList = new ArrayList<>();
+        PluginManagerWrapper.INSTANCE.get(context)
+                .addPluginListener(this, AppLaunchEventsPlugin.class, true);
     }
 
     @UiThread
@@ -96,7 +108,7 @@
         AppPredictionManager apm = mContext.getSystemService(AppPredictionManager.class);
 
         if (apm == null) {
-          return null;
+            return null;
         }
 
         AppPredictor predictor = apm.createAppPredictionSession(
@@ -116,7 +128,7 @@
      */
     @WorkerThread
     @Nullable
-    public Bundle getAppPredictionContextExtras(Client client){
+    public Bundle getAppPredictionContextExtras(Client client) {
         return null;
     }
 
@@ -128,7 +140,7 @@
                 destroy();
 
                 // Initialize the clients
-                int count = InvariantDeviceProfile.INSTANCE.get(mContext).numColumns;
+                int count = InvariantDeviceProfile.INSTANCE.get(mContext).numAllAppsColumns;
                 mHomeAppPredictor = createPredictor(Client.HOME, count);
                 mRecentsOverviewPredictor = createPredictor(Client.OVERVIEW, count);
                 return true;
@@ -167,37 +179,98 @@
         if (DBG) {
             Log.d(TAG, String.format("Sent immediate message to update %s", client));
         }
+
+        // Relay onReturnedToHome to every plugin.
+        mAppLaunchEventsPluginsList.forEach(AppLaunchEventsPlugin::onReturnedToHome);
     }
 
     @Override
     @UiThread
     public void onStartShortcut(String packageName, String shortcutId, UserHandle user,
-            String container) {
+                                String container) {
         // TODO: Use the full shortcut info
-        AppTarget target = new AppTarget
-                .Builder(new AppTargetId("shortcut:" + shortcutId), packageName, user)
-                    .setClassName(shortcutId)
-                    .build();
+        AppTarget target = new AppTarget.Builder(
+                new AppTargetId("shortcut:" + shortcutId), packageName, user)
+                .setClassName(shortcutId)
+                .build();
+
         sendLaunch(target, container);
+
+        // Relay onStartShortcut info to every connected plugin.
+        mAppLaunchEventsPluginsList
+                .forEach(plugin -> plugin.onStartShortcut(
+                        packageName,
+                        shortcutId,
+                        user,
+                        container != null ? container : CONTAINER_DEFAULT)
+        );
+
     }
 
     @Override
     @UiThread
     public void onStartApp(ComponentName cn, UserHandle user, String container) {
         if (cn != null) {
-            AppTarget target = new AppTarget
-                    .Builder(new AppTargetId("app:" + cn), cn.getPackageName(), user)
-                        .setClassName(cn.getClassName())
-                        .build();
+            AppTarget target = new AppTarget.Builder(
+                    new AppTargetId("app:" + cn), cn.getPackageName(), user)
+                    .setClassName(cn.getClassName())
+                    .build();
             sendLaunch(target, container);
+
+            // Relay onStartApp to every connected plugin.
+            mAppLaunchEventsPluginsList
+                    .forEach(plugin -> plugin.onStartApp(
+                            cn,
+                            user,
+                            container != null ? container : CONTAINER_DEFAULT)
+            );
         }
     }
 
+    @Override
+    @UiThread
+    public void onDismissApp(ComponentName cn, UserHandle user, String container) {
+        if (cn == null) return;
+        AppTarget target = new AppTarget.Builder(
+                new AppTargetId("app: " + cn), cn.getPackageName(), user)
+                .setClassName(cn.getClassName())
+                .build();
+        sendDismiss(target, container);
+
+        // Relay onDismissApp to every connected plugin.
+        mAppLaunchEventsPluginsList
+                .forEach(plugin -> plugin.onDismissApp(
+                        cn,
+                        user,
+                        container != null ? container : CONTAINER_DEFAULT)
+        );
+    }
+
+    @UiThread
+    private void sendEvent(AppTarget target, String container, int eventId) {
+        AppTargetEvent event = new AppTargetEvent.Builder(target, eventId)
+                .setLaunchLocation(container == null ? CONTAINER_DEFAULT : container)
+                .build();
+        Message.obtain(mMessageHandler, MSG_LAUNCH, event).sendToTarget();
+    }
+
     @UiThread
     private void sendLaunch(AppTarget target, String container) {
-        AppTargetEvent event = new AppTargetEvent.Builder(target, AppTargetEvent.ACTION_LAUNCH)
-                .setLaunchLocation(container == null ? CONTAINER_DEFAULT : container)
-                .build();
-        Message.obtain(mMessageHandler, MSG_LAUNCH, event).sendToTarget();
+        sendEvent(target, container, AppTargetEvent.ACTION_LAUNCH);
+    }
+
+    @UiThread
+    private void sendDismiss(AppTarget target, String container) {
+        sendEvent(target, container, AppTargetEvent.ACTION_DISMISS);
+    }
+
+    @Override
+    public void onPluginConnected(AppLaunchEventsPlugin appLaunchEventsPlugin, Context context) {
+        mAppLaunchEventsPluginsList.add(appLaunchEventsPlugin);
+    }
+
+    @Override
+    public void onPluginDisconnected(AppLaunchEventsPlugin appLaunchEventsPlugin) {
+        mAppLaunchEventsPluginsList.remove(appLaunchEventsPlugin);
     }
 }
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionRowView.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionRowView.java
index 0c7ba9c..f82af62 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionRowView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionRowView.java
@@ -43,6 +43,7 @@
 import com.android.launcher3.ItemInfoWithIcon;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.R;
 import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.allapps.AllAppsStore;
@@ -92,7 +93,7 @@
 
     private final Launcher mLauncher;
     private final PredictionUiStateManager mPredictionUiStateManager;
-    private final int mNumPredictedAppsPerRow;
+    private int mNumPredictedAppsPerRow;
 
     // The set of predicted app component names
     private final List<ComponentKeyMapper> mPredictedAppComponents = new ArrayList<>();
@@ -128,7 +129,7 @@
 
         mFocusHelper = new SimpleFocusIndicatorHelper(this);
 
-        mNumPredictedAppsPerRow = LauncherAppState.getIDP(context).numColumns;
+        mNumPredictedAppsPerRow = LauncherAppState.getIDP(context).numAllAppsColumns;
         mLauncher = Launcher.getLauncher(context);
         mLauncher.addOnDeviceProfileChangeListener(this);
 
@@ -226,6 +227,7 @@
 
     @Override
     public void onDeviceProfileChanged(DeviceProfile dp) {
+        mNumPredictedAppsPerRow = dp.inv.numAllAppsColumns;
         removeAllViews();
         applyPredictionApps();
     }
@@ -274,14 +276,14 @@
         boolean predictionsEnabled = predictionCount > 0;
         if (predictionsEnabled != mPredictionsEnabled) {
             mPredictionsEnabled = predictionsEnabled;
-            mLauncher.reapplyUi();
+            mLauncher.reapplyUi(false /* cancelCurrentAnimation */);
             updateVisibility();
         }
         mParent.onHeightUpdated();
     }
 
     private List<ItemInfoWithIcon> processPredictedAppComponents(List<ComponentKeyMapper> components) {
-        if (getAppsStore().getApps().isEmpty()) {
+        if (getAppsStore().getApps().length == 0) {
             // Apps have not been bound yet.
             return Collections.emptyList();
         }
@@ -290,7 +292,9 @@
         for (ComponentKeyMapper mapper : components) {
             ItemInfoWithIcon info = mapper.getApp(getAppsStore());
             if (info != null) {
-                predictedApps.add(info);
+                ItemInfoWithIcon predictedApp = info.clone();
+                predictedApp.container = LauncherSettings.Favorites.CONTAINER_PREDICTION;
+                predictedApps.add(predictedApp);
             } else {
                 if (FeatureFlags.IS_DOGFOOD_BUILD) {
                     Log.e(TAG, "Predicted app not found: " + mapper);
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionUiStateManager.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionUiStateManager.java
index 1a59770..9c66107 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionUiStateManager.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionUiStateManager.java
@@ -25,12 +25,16 @@
 import android.content.ComponentName;
 import android.content.Context;
 
+import androidx.annotation.NonNull;
+
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile.OnIDPChangeListener;
+import com.android.launcher3.ItemInfo;
 import com.android.launcher3.ItemInfoWithIcon;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.LauncherStateManager.StateListener;
 import com.android.launcher3.Utilities;
@@ -39,12 +43,14 @@
 import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.icons.IconCache.ItemInfoUpdateReceiver;
 import com.android.launcher3.shortcuts.ShortcutKey;
+import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.MainThreadInitializedObject;
 
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.stream.IntStream;
 
 /**
  * Handler responsible to updating the UI due to predicted apps changes. Operations:
@@ -322,6 +328,30 @@
         return mCurrentState;
     }
 
+    /**
+     * Fill in predicted_rank field based on app prediction.
+     * Only applicable when {@link ItemInfo#itemType} is one of the followings:
+     * {@link LauncherSettings.Favorites#ITEM_TYPE_APPLICATION},
+     * {@link LauncherSettings.Favorites#ITEM_TYPE_SHORTCUT},
+     * {@link LauncherSettings.Favorites#ITEM_TYPE_DEEP_SHORTCUT}
+     */
+    public static void fillInPredictedRank(
+            @NonNull ItemInfo itemInfo, @NonNull LauncherLogProto.Target target) {
+        final PredictionUiStateManager manager = PredictionUiStateManager.INSTANCE.getNoCreate();
+        if (manager == null || itemInfo.getTargetComponent() == null || itemInfo.user == null
+                || (itemInfo.itemType != LauncherSettings.Favorites.ITEM_TYPE_APPLICATION
+                && itemInfo.itemType != LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT
+                && itemInfo.itemType != LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT)) {
+            return;
+        }
+        final ComponentKey k = new ComponentKey(itemInfo.getTargetComponent(), itemInfo.user);
+        final List<ComponentKeyMapper> predictedApps = manager.getCurrentState().apps;
+        IntStream.range(0, predictedApps.size())
+                .filter((i) -> k.equals(predictedApps.get(i).getComponentKey()))
+                .findFirst()
+                .ifPresent((rank) -> target.predictedRank = rank);
+    }
+
     public static class PredictionState {
 
         public boolean isEnabled;
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsUiFactory.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsUiFactory.java
index 596bc4f..cac170c 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsUiFactory.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsUiFactory.java
@@ -28,17 +28,17 @@
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.LauncherStateManager.StateHandler;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.graphics.RotationMode;
 import com.android.launcher3.uioverrides.touchcontrollers.FlingAndHoldTouchController;
 import com.android.launcher3.uioverrides.touchcontrollers.LandscapeEdgeSwipeController;
 import com.android.launcher3.uioverrides.touchcontrollers.NavBarToHomeTouchController;
+import com.android.launcher3.uioverrides.touchcontrollers.NoButtonQuickSwitchTouchController;
 import com.android.launcher3.uioverrides.touchcontrollers.OverviewToAllAppsTouchController;
 import com.android.launcher3.uioverrides.touchcontrollers.PortraitStatesTouchController;
-import com.android.launcher3.uioverrides.touchcontrollers.StatusBarTouchController;
 import com.android.launcher3.uioverrides.touchcontrollers.QuickSwitchTouchController;
+import com.android.launcher3.uioverrides.touchcontrollers.StatusBarTouchController;
 import com.android.launcher3.uioverrides.touchcontrollers.TaskViewTouchController;
 import com.android.launcher3.uioverrides.touchcontrollers.TransposedQuickSwitchTouchController;
 import com.android.launcher3.util.TouchController;
@@ -145,7 +145,7 @@
         ArrayList<TouchController> list = new ArrayList<>();
         list.add(launcher.getDragController());
         if (mode == NO_BUTTON) {
-            list.add(new QuickSwitchTouchController(launcher));
+            list.add(new NoButtonQuickSwitchTouchController(launcher));
             list.add(new NavBarToHomeTouchController(launcher));
             list.add(new FlingAndHoldTouchController(launcher));
         } else {
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java
index 50cfac8..63ac528 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java
@@ -19,7 +19,6 @@
 
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.Launcher;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.allapps.AllAppsTransitionController;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.quickstep.util.LayoutUtils;
@@ -69,8 +68,16 @@
         if (taskCount == 0) {
             return super.getOverviewScaleAndTranslation(launcher);
         }
-        TaskView dummyTask = recentsView.getTaskViewAt(Utilities.boundToRange(
-                recentsView.getCurrentPage(), 0, taskCount - 1));
+        TaskView dummyTask;
+        if (recentsView.getCurrentPage() >= 0) {
+            if (recentsView.getCurrentPage() <= taskCount - 1) {
+                dummyTask = recentsView.getCurrentPageTaskView();
+            } else {
+                dummyTask = recentsView.getTaskViewAt(taskCount - 1);
+            }
+        } else {
+            dummyTask = recentsView.getTaskViewAt(0);
+        }
         return recentsView.getTempClipAnimationHelper().updateForFullscreenOverview(dummyTask)
                 .getScaleAndTranslation();
     }
@@ -91,7 +98,7 @@
         if ((getVisibleElements(launcher) & HOTSEAT_ICONS) != 0) {
             // Translate hotseat offscreen if we show it in overview.
             ScaleAndTranslation scaleAndTranslation = super.getHotseatScaleAndTranslation(launcher);
-            scaleAndTranslation.translationY = LayoutUtils.getShelfTrackingDistance(launcher,
+            scaleAndTranslation.translationY += LayoutUtils.getShelfTrackingDistance(launcher,
                     launcher.getDeviceProfile());
             return scaleAndTranslation;
         }
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/OverviewState.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/OverviewState.java
index 93d4de1..ed5dba1 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/OverviewState.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/OverviewState.java
@@ -22,6 +22,7 @@
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_OVERVIEW_FADE;
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_OVERVIEW_SCALE;
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_OVERVIEW_TRANSLATE_X;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_OVERVIEW_TRANSLATE_Y;
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_FADE;
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_SCALE;
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_TRANSLATE;
@@ -32,7 +33,6 @@
 import static com.android.launcher3.logging.LoggerUtils.newContainerTarget;
 import static com.android.launcher3.states.RotationHelper.REQUEST_ROTATE;
 
-import android.content.Context;
 import android.graphics.Rect;
 import android.view.View;
 
@@ -47,6 +47,7 @@
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.quickstep.SysUINavigationMode;
+import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 
@@ -91,8 +92,19 @@
     @Override
     public ScaleAndTranslation getHotseatScaleAndTranslation(Launcher launcher) {
         if ((getVisibleElements(launcher) & HOTSEAT_ICONS) != 0) {
-            // If the hotseat icons are visible in overview, keep them in their normal position.
-            return super.getWorkspaceScaleAndTranslation(launcher);
+            DeviceProfile dp = launcher.getDeviceProfile();
+            if (dp.allAppsIconSizePx >= dp.iconSizePx) {
+                return new ScaleAndTranslation(1, 0, 0);
+            } else {
+                float scale = ((float) dp.allAppsIconSizePx) / dp.iconSizePx;
+                // Distance between the screen center (which is the pivotY for hotseat) and the
+                // bottom of the hotseat (which we want to preserve)
+                float distanceFromBottom = dp.heightPx / 2 - dp.hotseatBarBottomPaddingPx;
+                // On scaling, the bottom edge is moved closer to the pivotY. We move the
+                // hotseat back down so that the bottom edge's position is preserved.
+                float translationY = distanceFromBottom * (1 - scale);
+                return new ScaleAndTranslation(scale, 0, translationY);
+            }
         }
         return getWorkspaceScaleAndTranslation(launcher);
     }
@@ -160,15 +172,7 @@
     }
 
     public static float getDefaultSwipeHeight(Launcher launcher) {
-        return getDefaultSwipeHeight(launcher, launcher.getDeviceProfile());
-    }
-
-    public static float getDefaultSwipeHeight(Context context, DeviceProfile dp) {
-        float swipeHeight = dp.allAppsCellHeightPx - dp.allAppsIconTextSizePx;
-        if (SysUINavigationMode.getMode(context) == SysUINavigationMode.Mode.NO_BUTTON) {
-            swipeHeight -= dp.getInsets().bottom;
-        }
-        return swipeHeight;
+        return LayoutUtils.getDefaultSwipeHeight(launcher, launcher.getDeviceProfile());
     }
 
     @Override
@@ -202,6 +206,7 @@
             builder.setInterpolator(ANIM_WORKSPACE_FADE, OVERSHOOT_1_2);
             builder.setInterpolator(ANIM_OVERVIEW_SCALE, OVERSHOOT_1_2);
             builder.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, OVERSHOOT_1_7);
+            builder.setInterpolator(ANIM_OVERVIEW_TRANSLATE_Y, OVERSHOOT_1_7);
             builder.setInterpolator(ANIM_OVERVIEW_FADE, OVERSHOOT_1_2);
         }
     }
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/FlingAndHoldTouchController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/FlingAndHoldTouchController.java
index ab346c0..3231f37 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/FlingAndHoldTouchController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/FlingAndHoldTouchController.java
@@ -16,39 +16,37 @@
 
 package com.android.launcher3.uioverrides.touchcontrollers;
 
+import static com.android.launcher3.LauncherAppTransitionManagerImpl.INDEX_PAUSE_TO_OVERVIEW_ANIM;
 import static com.android.launcher3.LauncherState.ALL_APPS;
-import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.LauncherState.OVERVIEW_PEEK;
-import static com.android.launcher3.LauncherStateManager.ANIM_ALL;
 import static com.android.launcher3.LauncherStateManager.ATOMIC_OVERVIEW_PEEK_COMPONENT;
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_ALL_APPS_FADE;
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_ALL_APPS_HEADER_FADE;
-import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_HOTSEAT_SCALE;
-import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_HOTSEAT_TRANSLATE;
-import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_VERTICAL_PROGRESS;
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_FADE;
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_SCALE;
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_TRANSLATE;
 import static com.android.launcher3.anim.Interpolators.ACCEL;
+import static com.android.launcher3.anim.Interpolators.DEACCEL;
 import static com.android.launcher3.anim.Interpolators.DEACCEL_3;
-import static com.android.launcher3.anim.Interpolators.LINEAR;
-import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
+import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_OVERVIEW_DISABLED;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
-import android.view.HapticFeedbackConstants;
 import android.view.MotionEvent;
+import android.view.View;
 import android.view.ViewConfiguration;
 
 import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherAppTransitionManagerImpl;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
+import com.android.launcher3.util.VibratorWrapper;
 import com.android.quickstep.OverviewInteractionState;
 import com.android.quickstep.util.MotionPauseDetector;
 import com.android.quickstep.views.RecentsView;
@@ -77,7 +75,7 @@
 
     @Override
     protected long getAtomicDuration() {
-        return 300;
+        return LauncherAppTransitionManagerImpl.ATOMIC_DURATION_FROM_PAUSED_TO_OVERVIEW;
     }
 
     @Override
@@ -105,8 +103,7 @@
                     }
                 });
                 mPeekAnim.start();
-                recentsView.performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY,
-                        HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
+                VibratorWrapper.INSTANCE.get(mLauncher).vibrate(OVERVIEW_HAPTIC);
 
                 mLauncher.getDragLayer().getScrim().animateToSysuiMultiplier(isPaused ? 0 : 1,
                         peekDuration, 0);
@@ -131,16 +128,33 @@
             // Fade in prediction icons quickly, then rest of all apps after reaching overview.
             float progressToReachOverview = NORMAL.getVerticalProgress(mLauncher)
                     - OVERVIEW.getVerticalProgress(mLauncher);
-            builder.setInterpolator(ANIM_ALL_APPS_HEADER_FADE, Interpolators.clampToProgress(ACCEL,
-                    0, ALL_APPS_CONTENT_FADE_THRESHOLD));
-            builder.setInterpolator(ANIM_ALL_APPS_FADE, Interpolators.clampToProgress(LINEAR,
-                    progressToReachOverview, 1));
+            builder.setInterpolator(ANIM_ALL_APPS_HEADER_FADE, Interpolators.clampToProgress(
+                    ACCEL,
+                    0,
+                    ALL_APPS_CONTENT_FADE_THRESHOLD));
+            builder.setInterpolator(ANIM_ALL_APPS_FADE, Interpolators.clampToProgress(
+                    ACCEL,
+                    progressToReachOverview,
+                    progressToReachOverview + ALL_APPS_CONTENT_FADE_THRESHOLD));
 
             // Get workspace out of the way quickly, to prepare for potential pause.
             builder.setInterpolator(ANIM_WORKSPACE_SCALE, DEACCEL_3);
             builder.setInterpolator(ANIM_WORKSPACE_TRANSLATE, DEACCEL_3);
             builder.setInterpolator(ANIM_WORKSPACE_FADE, DEACCEL_3);
             return builder;
+        } else if (fromState == ALL_APPS && toState == NORMAL) {
+            AnimatorSetBuilder builder = new AnimatorSetBuilder();
+            // Keep all apps/predictions opaque until the very end of the transition.
+            float progressToReachOverview = OVERVIEW.getVerticalProgress(mLauncher);
+            builder.setInterpolator(ANIM_ALL_APPS_FADE, Interpolators.clampToProgress(
+                    DEACCEL,
+                    progressToReachOverview - ALL_APPS_CONTENT_FADE_THRESHOLD,
+                    progressToReachOverview));
+            builder.setInterpolator(ANIM_ALL_APPS_HEADER_FADE, Interpolators.clampToProgress(
+                    DEACCEL,
+                    1 - ALL_APPS_CONTENT_FADE_THRESHOLD,
+                    1));
+            return builder;
         }
         return super.getAnimatorSetBuilderForStates(fromState, toState);
     }
@@ -155,20 +169,14 @@
     }
 
     @Override
-    public void onDragEnd(float velocity, boolean fling) {
+    public void onDragEnd(float velocity) {
         if (mMotionPauseDetector.isPaused() && handlingOverviewAnim()) {
             if (mPeekAnim != null) {
                 mPeekAnim.cancel();
             }
 
-            AnimatorSetBuilder builder = new AnimatorSetBuilder();
-            builder.setInterpolator(ANIM_VERTICAL_PROGRESS, OVERSHOOT_1_2);
-            if ((OVERVIEW.getVisibleElements(mLauncher) & HOTSEAT_ICONS) != 0) {
-                builder.setInterpolator(ANIM_HOTSEAT_SCALE, OVERSHOOT_1_2);
-                builder.setInterpolator(ANIM_HOTSEAT_TRANSLATE, OVERSHOOT_1_2);
-            }
-            AnimatorSet overviewAnim = mLauncher.getStateManager().createAtomicAnimation(
-                    NORMAL, OVERVIEW, builder, ANIM_ALL, ATOMIC_DURATION);
+            Animator overviewAnim = mLauncher.getAppTransitionManager().createStateElementAnimation(
+                    INDEX_PAUSE_TO_OVERVIEW_ANIM);
             overviewAnim.addListener(new AnimatorListenerAdapter() {
                 @Override
                 public void onAnimationEnd(Animator animation) {
@@ -177,7 +185,12 @@
             });
             overviewAnim.start();
         } else {
-            super.onDragEnd(velocity, fling);
+            super.onDragEnd(velocity);
+        }
+
+        View searchView = mLauncher.getAppsView().getSearchView();
+        if (searchView instanceof FeedbackHandler) {
+            ((FeedbackHandler) searchView).resetFeedback();
         }
         mMotionPauseDetector.clear();
     }
@@ -205,4 +218,16 @@
             builder.addFlag(AnimatorSetBuilder.FLAG_DONT_ANIMATE_OVERVIEW);
         }
     }
+
+    /**
+     * Interface for views with feedback animation requiring reset
+     */
+    public interface FeedbackHandler {
+
+        /**
+         * reset searchWidget feedback
+         */
+        void resetFeedback();
+    }
+
 }
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java
index d66af1a..ef50c7b 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java
@@ -23,6 +23,7 @@
 import static com.android.launcher3.allapps.AllAppsTransitionController.ALL_APPS_PROGRESS;
 import static com.android.launcher3.anim.Interpolators.DEACCEL_3;
 import static com.android.launcher3.touch.AbstractStateChangeTouchController.SUCCESS_TRANSITION_PROGRESS;
+import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
 
 import android.animation.Animator;
 import android.animation.AnimatorSet;
@@ -43,21 +44,25 @@
 import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
-import com.android.launcher3.touch.SwipeDetector;
+import com.android.launcher3.config.BaseFlags;
+import com.android.launcher3.touch.SingleAxisSwipeDetector;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
 import com.android.launcher3.util.TouchController;
+import com.android.quickstep.util.AssistantUtilities;
 import com.android.quickstep.views.RecentsView;
+import com.android.systemui.shared.system.ActivityManagerWrapper;
 
 /**
  * Handles swiping up on the nav bar to go home from launcher, e.g. overview or all apps.
  */
-public class NavBarToHomeTouchController implements TouchController, SwipeDetector.Listener {
+public class NavBarToHomeTouchController implements TouchController,
+        SingleAxisSwipeDetector.Listener {
 
     private static final Interpolator PULLBACK_INTERPOLATOR = DEACCEL_3;
 
     private final Launcher mLauncher;
-    private final SwipeDetector mSwipeDetector;
+    private final SingleAxisSwipeDetector mSwipeDetector;
     private final float mPullbackDistance;
 
     private boolean mNoIntercept;
@@ -67,7 +72,8 @@
 
     public NavBarToHomeTouchController(Launcher launcher) {
         mLauncher = launcher;
-        mSwipeDetector = new SwipeDetector(mLauncher, this, SwipeDetector.VERTICAL);
+        mSwipeDetector = new SingleAxisSwipeDetector(mLauncher, this,
+                SingleAxisSwipeDetector.VERTICAL);
         mPullbackDistance = mLauncher.getResources().getDimension(R.dimen.home_pullback_distance);
     }
 
@@ -79,7 +85,8 @@
             if (mNoIntercept) {
                 return false;
             }
-            mSwipeDetector.setDetectableScrollConditions(SwipeDetector.DIRECTION_POSITIVE, false);
+            mSwipeDetector.setDetectableScrollConditions(SingleAxisSwipeDetector.DIRECTION_POSITIVE,
+                    false /* ignoreSlop */);
         }
 
         if (mNoIntercept) {
@@ -101,6 +108,10 @@
         if (AbstractFloatingView.getTopOpenView(mLauncher) != null) {
             return true;
         }
+        if (BaseFlags.ASSISTANT_GIVES_LAUNCHER_FOCUS.get()
+                && AssistantUtilities.isExcludedAssistantRunning()) {
+            return true;
+        }
         return false;
     }
 
@@ -173,7 +184,8 @@
     }
 
     @Override
-    public void onDragEnd(float velocity, boolean fling) {
+    public void onDragEnd(float velocity) {
+        boolean fling = mSwipeDetector.isFling(velocity);
         final int logAction = fling ? Touch.FLING : Touch.SWIPE;
         float progress = mCurrentAnimation.getProgressFraction();
         float interpolatedProgress = PULLBACK_INTERPOLATOR.getInterpolation(progress);
@@ -190,6 +202,8 @@
                 AbstractFloatingView.closeAllOpenViews(mLauncher);
                 logStateChange(topOpenView.getLogContainerType(), logAction);
             }
+            ActivityManagerWrapper.getInstance()
+                .closeSystemWindows(CLOSE_SYSTEM_WINDOWS_REASON_RECENTS);
         } else {
             // Quickly return to the state we came from (we didn't move far).
             ValueAnimator anim = mCurrentAnimation.getAnimationPlayer();
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
new file mode 100644
index 0000000..76374af
--- /dev/null
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
@@ -0,0 +1,473 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.uioverrides.touchcontrollers;
+
+import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
+import static com.android.launcher3.LauncherAppTransitionManagerImpl.INDEX_PAUSE_TO_OVERVIEW_ANIM;
+import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
+import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.LauncherState.QUICK_SWITCH;
+import static com.android.launcher3.LauncherStateManager.ANIM_ALL;
+import static com.android.launcher3.anim.AlphaUpdateListener.ALPHA_CUTOFF_THRESHOLD;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_ALL_APPS_FADE;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_VERTICAL_PROGRESS;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_FADE;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_TRANSLATE;
+import static com.android.launcher3.anim.AnimatorSetBuilder.FLAG_DONT_ANIMATE_OVERVIEW;
+import static com.android.launcher3.anim.Interpolators.ACCEL_0_75;
+import static com.android.launcher3.anim.Interpolators.DEACCEL;
+import static com.android.launcher3.anim.Interpolators.DEACCEL_5;
+import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.anim.Interpolators.scrollInterpolatorForVelocity;
+import static com.android.launcher3.touch.BothAxesSwipeDetector.DIRECTION_RIGHT;
+import static com.android.launcher3.touch.BothAxesSwipeDetector.DIRECTION_UP;
+import static com.android.launcher3.util.DefaultDisplay.getSingleFrameMs;
+import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;
+import static com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState.CANCEL;
+import static com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState.HIDE;
+import static com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState.PEEK;
+import static com.android.quickstep.views.RecentsView.FULLSCREEN_PROGRESS;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_OVERVIEW_DISABLED;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
+import android.animation.ValueAnimator;
+import android.graphics.PointF;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.animation.Interpolator;
+
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.LauncherStateManager;
+import com.android.launcher3.LauncherStateManager.AnimationConfig;
+import com.android.launcher3.QuickstepAppTransitionManagerImpl;
+import com.android.launcher3.R;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.allapps.AllAppsTransitionController;
+import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.anim.AnimatorSetBuilder;
+import com.android.launcher3.graphics.OverviewScrim;
+import com.android.launcher3.touch.BaseSwipeDetector;
+import com.android.launcher3.touch.BothAxesSwipeDetector;
+import com.android.launcher3.userevent.nano.LauncherLogProto;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
+import com.android.launcher3.util.TouchController;
+import com.android.launcher3.util.VibratorWrapper;
+import com.android.quickstep.OverviewInteractionState;
+import com.android.quickstep.util.LayoutUtils;
+import com.android.quickstep.util.MotionPauseDetector;
+import com.android.quickstep.util.ShelfPeekAnim;
+import com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState;
+import com.android.quickstep.util.StaggeredWorkspaceAnim;
+import com.android.quickstep.views.LauncherRecentsView;
+
+/**
+ * Handles quick switching to a recent task from the home screen. To give as much flexibility to
+ * the user as possible, also handles swipe up and hold to go to overview and swiping back home.
+ */
+public class NoButtonQuickSwitchTouchController implements TouchController,
+        BothAxesSwipeDetector.Listener, MotionPauseDetector.OnMotionPauseListener {
+
+    /** The minimum progress of the scale/translationY animation until drag end. */
+    private static final float Y_ANIM_MIN_PROGRESS = 0.15f;
+    private static final Interpolator FADE_OUT_INTERPOLATOR = DEACCEL_5;
+    private static final Interpolator TRANSLATE_OUT_INTERPOLATOR = ACCEL_0_75;
+    private static final Interpolator SCALE_DOWN_INTERPOLATOR = DEACCEL;
+
+    private final Launcher mLauncher;
+    private final BothAxesSwipeDetector mSwipeDetector;
+    private final float mXRange;
+    private final float mYRange;
+    private final MotionPauseDetector mMotionPauseDetector;
+    private final float mMotionPauseMinDisplacement;
+
+    private boolean mNoIntercept;
+    private LauncherState mStartState;
+
+    private ShelfPeekAnim mShelfPeekAnim;
+    private boolean mIsHomeScreenVisible = true;
+
+    // As we drag, we control 3 animations: one to get non-overview components out of the way,
+    // and the other two to set overview properties based on x and y progress.
+    private AnimatorPlaybackController mNonOverviewAnim;
+    private AnimatorPlaybackController mXOverviewAnim;
+    private AnimatorPlaybackController mYOverviewAnim;
+
+    public NoButtonQuickSwitchTouchController(Launcher launcher) {
+        mLauncher = launcher;
+        mSwipeDetector = new BothAxesSwipeDetector(mLauncher, this);
+        mXRange = mLauncher.getDeviceProfile().widthPx / 2f;
+        mYRange = LayoutUtils.getShelfTrackingDistance(mLauncher, mLauncher.getDeviceProfile());
+        mMotionPauseDetector = new MotionPauseDetector(mLauncher);
+        mMotionPauseMinDisplacement = mLauncher.getResources().getDimension(
+                R.dimen.motion_pause_detector_min_displacement_from_app);
+    }
+
+    @Override
+    public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
+        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
+            mNoIntercept = !canInterceptTouch(ev);
+            if (mNoIntercept) {
+                return false;
+            }
+
+            // Only detect horizontal swipe for intercept, then we will allow swipe up as well.
+            mSwipeDetector.setDetectableScrollConditions(DIRECTION_RIGHT,
+                    false /* ignoreSlopWhenSettling */);
+        }
+
+        if (mNoIntercept) {
+            return false;
+        }
+
+        onControllerTouchEvent(ev);
+        return mSwipeDetector.isDraggingOrSettling();
+    }
+
+    @Override
+    public boolean onControllerTouchEvent(MotionEvent ev) {
+        return mSwipeDetector.onTouchEvent(ev);
+    }
+
+    private boolean canInterceptTouch(MotionEvent ev) {
+        if (!mLauncher.isInState(LauncherState.NORMAL)) {
+            return false;
+        }
+        if ((ev.getEdgeFlags() & Utilities.EDGE_NAV_BAR) == 0) {
+            return false;
+        }
+        int stateFlags = OverviewInteractionState.INSTANCE.get(mLauncher).getSystemUiStateFlags();
+        if ((stateFlags & SYSUI_STATE_OVERVIEW_DISABLED) != 0) {
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public void onDragStart(boolean start) {
+        mMotionPauseDetector.clear();
+        if (start) {
+            mShelfPeekAnim = ((QuickstepAppTransitionManagerImpl) mLauncher
+                    .getAppTransitionManager()).getShelfPeekAnim();
+
+            mStartState = mLauncher.getStateManager().getState();
+
+            mMotionPauseDetector.setOnMotionPauseListener(this);
+
+            // We have detected horizontal drag start, now allow swipe up as well.
+            mSwipeDetector.setDetectableScrollConditions(DIRECTION_RIGHT | DIRECTION_UP,
+                    false /* ignoreSlopWhenSettling */);
+
+            setupAnimators();
+        }
+    }
+
+    @Override
+    public void onMotionPauseChanged(boolean isPaused) {
+        ShelfAnimState shelfState = isPaused ? PEEK : HIDE;
+        if (shelfState == PEEK) {
+            // Some shelf elements (e.g. qsb) were hidden, but we need them visible when peeking.
+            AnimatorSetBuilder builder = new AnimatorSetBuilder();
+            AllAppsTransitionController allAppsController = mLauncher.getAllAppsController();
+            allAppsController.setAlphas(NORMAL.getVisibleElements(mLauncher),
+                    new AnimationConfig(), builder);
+            builder.build().setDuration(0).start();
+
+            if ((OVERVIEW.getVisibleElements(mLauncher) & HOTSEAT_ICONS) != 0) {
+                // Hotseat was hidden, but we need it visible when peeking.
+                mLauncher.getHotseat().setAlpha(1);
+            }
+        }
+        mShelfPeekAnim.setShelfState(shelfState, ShelfPeekAnim.INTERPOLATOR,
+                ShelfPeekAnim.DURATION);
+        VibratorWrapper.INSTANCE.get(mLauncher).vibrate(OVERVIEW_HAPTIC);
+    }
+
+    private void setupAnimators() {
+        // Animate the non-overview components (e.g. workspace, shelf) out of the way.
+        AnimatorSetBuilder nonOverviewBuilder = new AnimatorSetBuilder();
+        nonOverviewBuilder.setInterpolator(ANIM_WORKSPACE_FADE, FADE_OUT_INTERPOLATOR);
+        nonOverviewBuilder.setInterpolator(ANIM_ALL_APPS_FADE, FADE_OUT_INTERPOLATOR);
+        nonOverviewBuilder.setInterpolator(ANIM_WORKSPACE_TRANSLATE, TRANSLATE_OUT_INTERPOLATOR);
+        nonOverviewBuilder.setInterpolator(ANIM_VERTICAL_PROGRESS, TRANSLATE_OUT_INTERPOLATOR);
+        updateNonOverviewAnim(QUICK_SWITCH, nonOverviewBuilder, ANIM_ALL);
+        mNonOverviewAnim.dispatchOnStart();
+
+        setupOverviewAnimators();
+    }
+
+    /** Create state animation to control non-overview components. */
+    private void updateNonOverviewAnim(LauncherState toState, AnimatorSetBuilder builder,
+            @LauncherStateManager.AnimationComponents int animComponents) {
+        builder.addFlag(FLAG_DONT_ANIMATE_OVERVIEW);
+        long accuracy = (long) (Math.max(mXRange, mYRange) * 2);
+        mNonOverviewAnim = mLauncher.getStateManager().createAnimationToNewWorkspace(toState,
+                builder, accuracy, this::clearState, animComponents);
+    }
+
+    private void setupOverviewAnimators() {
+        final LauncherState fromState = QUICK_SWITCH;
+        final LauncherState toState = OVERVIEW;
+        LauncherState.ScaleAndTranslation fromScaleAndTranslation = fromState
+                .getOverviewScaleAndTranslation(mLauncher);
+        LauncherState.ScaleAndTranslation toScaleAndTranslation = toState
+                .getOverviewScaleAndTranslation(mLauncher);
+        // Update RecentView's translationX to have it start offscreen.
+        LauncherRecentsView recentsView = mLauncher.getOverviewPanel();
+        float startScale = Utilities.mapRange(
+                SCALE_DOWN_INTERPOLATOR.getInterpolation(Y_ANIM_MIN_PROGRESS),
+                fromScaleAndTranslation.scale,
+                toScaleAndTranslation.scale);
+        fromScaleAndTranslation.translationX = recentsView.getOffscreenTranslationX(startScale);
+
+        // Set RecentView's initial properties.
+        recentsView.setScaleX(fromScaleAndTranslation.scale);
+        recentsView.setScaleY(fromScaleAndTranslation.scale);
+        recentsView.setTranslationX(fromScaleAndTranslation.translationX);
+        recentsView.setTranslationY(fromScaleAndTranslation.translationY);
+        recentsView.setContentAlpha(1);
+
+        // As we drag right, animate the following properties:
+        //   - RecentsView translationX
+        //   - OverviewScrim
+        AnimatorSet xOverviewAnim = new AnimatorSet();
+        xOverviewAnim.play(ObjectAnimator.ofFloat(recentsView, View.TRANSLATION_X,
+                toScaleAndTranslation.translationX));
+        xOverviewAnim.play(ObjectAnimator.ofFloat(
+                mLauncher.getDragLayer().getOverviewScrim(), OverviewScrim.SCRIM_PROGRESS,
+                toState.getOverviewScrimAlpha(mLauncher)));
+        long xAccuracy = (long) (mXRange * 2);
+        xOverviewAnim.setDuration(xAccuracy);
+        mXOverviewAnim = AnimatorPlaybackController.wrap(xOverviewAnim, xAccuracy);
+        mXOverviewAnim.dispatchOnStart();
+
+        // As we drag up, animate the following properties:
+        //   - RecentsView translationY
+        //   - RecentsView scale
+        //   - RecentsView fullscreenProgress
+        AnimatorSet yAnimation = new AnimatorSet();
+        Animator translateYAnim = ObjectAnimator.ofFloat(recentsView, View.TRANSLATION_Y,
+                toScaleAndTranslation.translationY);
+        Animator scaleAnim = ObjectAnimator.ofFloat(recentsView, SCALE_PROPERTY,
+                toScaleAndTranslation.scale);
+        Animator fullscreenProgressAnim = ObjectAnimator.ofFloat(recentsView, FULLSCREEN_PROGRESS,
+                fromState.getOverviewFullscreenProgress(), toState.getOverviewFullscreenProgress());
+        scaleAnim.setInterpolator(SCALE_DOWN_INTERPOLATOR);
+        fullscreenProgressAnim.setInterpolator(SCALE_DOWN_INTERPOLATOR);
+        yAnimation.play(translateYAnim);
+        yAnimation.play(scaleAnim);
+        yAnimation.play(fullscreenProgressAnim);
+        long yAccuracy = (long) (mYRange * 2);
+        yAnimation.setDuration(yAccuracy);
+        mYOverviewAnim = AnimatorPlaybackController.wrap(yAnimation, yAccuracy);
+        mYOverviewAnim.dispatchOnStart();
+    }
+
+    @Override
+    public boolean onDrag(PointF displacement, MotionEvent ev) {
+        float xProgress = Math.max(0, displacement.x) / mXRange;
+        float yProgress = Math.max(0, -displacement.y) / mYRange;
+        yProgress = Utilities.mapRange(yProgress, Y_ANIM_MIN_PROGRESS, 1f);
+
+        boolean wasHomeScreenVisible = mIsHomeScreenVisible;
+        if (wasHomeScreenVisible && mNonOverviewAnim != null) {
+            mNonOverviewAnim.setPlayFraction(xProgress);
+        }
+        mIsHomeScreenVisible = FADE_OUT_INTERPOLATOR.getInterpolation(xProgress)
+                <= 1 - ALPHA_CUTOFF_THRESHOLD;
+
+        if (wasHomeScreenVisible && !mIsHomeScreenVisible) {
+            // Get the shelf all the way offscreen so it pops up when we decide to peek it.
+            mShelfPeekAnim.setShelfState(HIDE, LINEAR, 0);
+        }
+
+        // Only allow motion pause if the home screen is invisible, since some
+        // home screen elements will appear in the shelf on motion pause.
+        mMotionPauseDetector.setDisallowPause(mIsHomeScreenVisible
+                || -displacement.y < mMotionPauseMinDisplacement);
+        mMotionPauseDetector.addPosition(displacement.y, ev.getEventTime());
+
+        if (mIsHomeScreenVisible) {
+            // Cancel the shelf anim so it doesn't clobber mNonOverviewAnim.
+            mShelfPeekAnim.setShelfState(CANCEL, LINEAR, 0);
+        }
+
+        if (mXOverviewAnim != null) {
+            mXOverviewAnim.setPlayFraction(xProgress);
+        }
+        if (mYOverviewAnim != null) {
+            mYOverviewAnim.setPlayFraction(yProgress);
+        }
+        return true;
+    }
+
+    @Override
+    public void onDragEnd(PointF velocity) {
+        boolean horizontalFling = mSwipeDetector.isFling(velocity.x);
+        boolean verticalFling = mSwipeDetector.isFling(velocity.y);
+        boolean noFling = !horizontalFling && !verticalFling;
+        int logAction = noFling ? Touch.SWIPE : Touch.FLING;
+        if (mMotionPauseDetector.isPaused() && noFling) {
+            cancelAnimations();
+
+            Animator overviewAnim = mLauncher.getAppTransitionManager().createStateElementAnimation(
+                    INDEX_PAUSE_TO_OVERVIEW_ANIM);
+            overviewAnim.addListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationEnd(Animator animation) {
+                    onAnimationToStateCompleted(OVERVIEW, logAction);
+                }
+            });
+            overviewAnim.start();
+            return;
+        }
+
+        final LauncherState targetState;
+        if (horizontalFling && verticalFling) {
+            if (velocity.x < 0) {
+                // Flinging left and up or down both go back home.
+                targetState = NORMAL;
+            } else {
+                if (velocity.y > 0) {
+                    // Flinging right and down goes to quick switch.
+                    targetState = QUICK_SWITCH;
+                } else {
+                    // Flinging up and right could go either home or to quick switch.
+                    // Determine the target based on the higher velocity.
+                    targetState = Math.abs(velocity.x) > Math.abs(velocity.y)
+                        ? QUICK_SWITCH : NORMAL;
+                }
+            }
+        } else if (horizontalFling) {
+            targetState = velocity.x > 0 ? QUICK_SWITCH : NORMAL;
+        } else if (verticalFling) {
+            targetState = velocity.y > 0 ? QUICK_SWITCH : NORMAL;
+        } else {
+            // If user isn't flinging, just snap to the closest state based on x progress.
+            boolean passedHorizontalThreshold = mXOverviewAnim.getInterpolatedProgress() > 0.5f;
+            targetState = passedHorizontalThreshold ? QUICK_SWITCH : NORMAL;
+        }
+
+        // Animate the various components to the target state.
+
+        float xProgress = mXOverviewAnim.getProgressFraction();
+        float startXProgress = Utilities.boundToRange(xProgress
+                + velocity.x * getSingleFrameMs(mLauncher) / mXRange, 0f, 1f);
+        final float endXProgress = targetState == NORMAL ? 0 : 1;
+        long xDuration = BaseSwipeDetector.calculateDuration(velocity.x,
+                Math.abs(endXProgress - startXProgress));
+        ValueAnimator xOverviewAnim = mXOverviewAnim.getAnimationPlayer();
+        xOverviewAnim.setFloatValues(startXProgress, endXProgress);
+        xOverviewAnim.setDuration(xDuration)
+                .setInterpolator(scrollInterpolatorForVelocity(velocity.x));
+        mXOverviewAnim.dispatchOnStartWithVelocity(endXProgress, velocity.x);
+
+        boolean flingUpToNormal = verticalFling && velocity.y < 0 && targetState == NORMAL;
+
+        float yProgress = mYOverviewAnim.getProgressFraction();
+        float startYProgress = Utilities.boundToRange(yProgress
+                - velocity.y * getSingleFrameMs(mLauncher) / mYRange, 0f, 1f);
+        final float endYProgress;
+        if (flingUpToNormal) {
+            endYProgress = 1;
+        } else if (targetState == NORMAL) {
+            // Keep overview at its current scale/translationY as it slides off the screen.
+            endYProgress = startYProgress;
+        } else {
+            endYProgress = 0;
+        }
+        long yDuration = BaseSwipeDetector.calculateDuration(velocity.y,
+                Math.abs(endYProgress - startYProgress));
+        ValueAnimator yOverviewAnim = mYOverviewAnim.getAnimationPlayer();
+        yOverviewAnim.setFloatValues(startYProgress, endYProgress);
+        yOverviewAnim.setDuration(yDuration);
+        mYOverviewAnim.dispatchOnStartWithVelocity(endYProgress, velocity.y);
+
+        ValueAnimator nonOverviewAnim = mNonOverviewAnim.getAnimationPlayer();
+        if (flingUpToNormal && !mIsHomeScreenVisible) {
+            // We are flinging to home while workspace is invisible, run the same staggered
+            // animation as from an app.
+            // Update mNonOverviewAnim to do nothing so it doesn't interfere.
+            updateNonOverviewAnim(targetState, new AnimatorSetBuilder(), 0 /* animComponents */);
+            nonOverviewAnim = mNonOverviewAnim.getAnimationPlayer();
+
+            new StaggeredWorkspaceAnim(mLauncher, velocity.y, false /* animateOverviewScrim */)
+                    .start();
+        } else {
+            boolean canceled = targetState == NORMAL;
+            if (canceled) {
+                // Let the state manager know that the animation didn't go to the target state,
+                // but don't clean up yet (we already clean up when the animation completes).
+                mNonOverviewAnim.dispatchOnCancelWithoutCancelRunnable();
+            }
+            float startProgress = mNonOverviewAnim.getProgressFraction();
+            float endProgress = canceled ? 0 : 1;
+            nonOverviewAnim.setFloatValues(startProgress, endProgress);
+            mNonOverviewAnim.dispatchOnStartWithVelocity(endProgress,
+                    horizontalFling ? velocity.x : velocity.y);
+        }
+
+        nonOverviewAnim.setDuration(Math.max(xDuration, yDuration));
+        mNonOverviewAnim.setEndAction(() -> onAnimationToStateCompleted(targetState, logAction));
+
+        cancelAnimations();
+        xOverviewAnim.start();
+        yOverviewAnim.start();
+        nonOverviewAnim.start();
+    }
+
+    private void onAnimationToStateCompleted(LauncherState targetState, int logAction) {
+        mLauncher.getUserEventDispatcher().logStateChangeAction(logAction,
+                getDirectionForLog(), mSwipeDetector.getDownX(), mSwipeDetector.getDownY(),
+                LauncherLogProto.ContainerType.NAVBAR,
+                mStartState.containerType,
+                targetState.containerType,
+                mLauncher.getWorkspace().getCurrentPage());
+        mLauncher.getStateManager().goToState(targetState, false, this::clearState);
+    }
+
+    private int getDirectionForLog() {
+        return Utilities.isRtl(mLauncher.getResources()) ? Direction.LEFT : Direction.RIGHT;
+    }
+
+    private void cancelAnimations() {
+        if (mNonOverviewAnim != null) {
+            mNonOverviewAnim.getAnimationPlayer().cancel();
+        }
+        if (mXOverviewAnim != null) {
+            mXOverviewAnim.getAnimationPlayer().cancel();
+        }
+        if (mYOverviewAnim != null) {
+            mYOverviewAnim.getAnimationPlayer().cancel();
+        }
+        mShelfPeekAnim.setShelfState(ShelfAnimState.CANCEL, LINEAR, 0);
+        mMotionPauseDetector.clear();
+    }
+
+    private void clearState() {
+        cancelAnimations();
+        mNonOverviewAnim = null;
+        mXOverviewAnim = null;
+        mYOverviewAnim = null;
+        mIsHomeScreenVisible = true;
+        mSwipeDetector.finishedScrolling();
+    }
+}
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitOverviewStateTouchHelper.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitOverviewStateTouchHelper.java
index 20a2487..03862db 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitOverviewStateTouchHelper.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitOverviewStateTouchHelper.java
@@ -47,9 +47,9 @@
      * @return true if we should intercept the motion event
      */
     boolean canInterceptTouch(MotionEvent ev) {
-        if (mRecentsView.getChildCount() > 0) {
+        if (mRecentsView.getTaskViewCount() > 0) {
             // Allow swiping up in the gap between the hotseat and overview.
-            return ev.getY() >= mRecentsView.getChildAt(0).getBottom();
+            return ev.getY() >= mRecentsView.getTaskViewAt(0).getBottom();
         } else {
             // If there are no tasks, we only intercept if we're below the hotseat height.
             return isTouchOverHotseat(mLauncher, ev);
@@ -63,7 +63,7 @@
      * @return true if going back should take the user to the currently running task
      */
     boolean shouldSwipeDownReturnToApp() {
-        TaskView taskView = mRecentsView.getTaskViewAt(mRecentsView.getNextPage());
+        TaskView taskView = mRecentsView.getNextPageTaskView();
         return taskView != null && mRecentsView.shouldSwipeDownLaunchApp();
     }
 
@@ -76,7 +76,7 @@
      */
     PendingAnimation createSwipeDownToTaskAppAnimation(long duration) {
         mRecentsView.setCurrentPage(mRecentsView.getPageNearestToCenterOfScreen());
-        TaskView taskView = mRecentsView.getTaskViewAt(mRecentsView.getCurrentPage());
+        TaskView taskView = mRecentsView.getCurrentPageTaskView();
         if (taskView == null) {
             throw new IllegalStateException("There is no task view to animate to.");
         }
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/QuickSwitchTouchController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/QuickSwitchTouchController.java
index eb571f6..14216ff 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/QuickSwitchTouchController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/QuickSwitchTouchController.java
@@ -30,6 +30,7 @@
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.util.SystemUiController.UI_STATE_OVERVIEW;
 import static com.android.quickstep.views.RecentsView.UPDATE_SYSUI_FLAGS_THRESHOLD;
+import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_OVERVIEW_DISABLED;
 
 import android.view.MotionEvent;
@@ -42,7 +43,7 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.touch.AbstractStateChangeTouchController;
-import com.android.launcher3.touch.SwipeDetector;
+import com.android.launcher3.touch.SingleAxisSwipeDetector;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
 import com.android.quickstep.OverviewInteractionState;
@@ -50,7 +51,7 @@
 import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
-import com.android.systemui.shared.system.QuickStepContract;
+import com.android.systemui.shared.system.ActivityManagerWrapper;
 
 /**
  * Handles quick switching to a recent task from the home screen.
@@ -60,10 +61,10 @@
     private @Nullable TaskView mTaskToLaunch;
 
     public QuickSwitchTouchController(Launcher launcher) {
-        this(launcher, SwipeDetector.HORIZONTAL);
+        this(launcher, SingleAxisSwipeDetector.HORIZONTAL);
     }
 
-    protected QuickSwitchTouchController(Launcher l, SwipeDetector.Direction dir) {
+    protected QuickSwitchTouchController(Launcher l, SingleAxisSwipeDetector.Direction dir) {
         super(l, dir);
     }
 
@@ -95,6 +96,8 @@
         super.onDragStart(start);
         mStartContainerType = LauncherLogProto.ContainerType.NAVBAR;
         mTaskToLaunch = mLauncher.<RecentsView>getOverviewPanel().getTaskViewAt(0);
+        ActivityManagerWrapper.getInstance()
+            .closeSystemWindows(CLOSE_SYSTEM_WINDOWS_REASON_RECENTS);
     }
 
     @Override
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java
index 00e4f58..ad02de1 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java
@@ -19,6 +19,9 @@
 import static com.android.launcher3.anim.Interpolators.scrollInterpolatorForVelocity;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
 import static com.android.launcher3.config.FeatureFlags.QUICKSTEP_SPRINGS;
+import static com.android.launcher3.touch.SingleAxisSwipeDetector.DIRECTION_BOTH;
+import static com.android.launcher3.touch.SingleAxisSwipeDetector.DIRECTION_NEGATIVE;
+import static com.android.launcher3.touch.SingleAxisSwipeDetector.DIRECTION_POSITIVE;
 import static com.android.launcher3.util.DefaultDisplay.getSingleFrameMs;
 
 import android.animation.Animator;
@@ -32,7 +35,8 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.anim.Interpolators;
-import com.android.launcher3.touch.SwipeDetector;
+import com.android.launcher3.touch.BaseSwipeDetector;
+import com.android.launcher3.touch.SingleAxisSwipeDetector;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
 import com.android.launcher3.util.FlingBlockCheck;
 import com.android.launcher3.util.PendingAnimation;
@@ -46,15 +50,14 @@
  * Touch controller for handling task view card swipes
  */
 public abstract class TaskViewTouchController<T extends BaseDraggingActivity>
-        extends AnimatorListenerAdapter implements TouchController, SwipeDetector.Listener {
-
-    private static final String TAG = "OverviewSwipeController";
+        extends AnimatorListenerAdapter implements TouchController,
+        SingleAxisSwipeDetector.Listener {
 
     // Progress after which the transition is assumed to be a success in case user does not fling
     public static final float SUCCESS_TRANSITION_PROGRESS = 0.5f;
 
     protected final T mActivity;
-    private final SwipeDetector mDetector;
+    private final SingleAxisSwipeDetector mDetector;
     private final RecentsView mRecentsView;
     private final int[] mTempCords = new int[2];
 
@@ -74,7 +77,7 @@
     public TaskViewTouchController(T activity) {
         mActivity = activity;
         mRecentsView = activity.getOverviewPanel();
-        mDetector = new SwipeDetector(activity, this, SwipeDetector.VERTICAL);
+        mDetector = new SingleAxisSwipeDetector(activity, this, SingleAxisSwipeDetector.VERTICAL);
     }
 
     private boolean canInterceptTouch() {
@@ -113,7 +116,7 @@
             int directionsToDetectScroll = 0;
             boolean ignoreSlopWhenSettling = false;
             if (mCurrentAnimation != null) {
-                directionsToDetectScroll = SwipeDetector.DIRECTION_BOTH;
+                directionsToDetectScroll = DIRECTION_BOTH;
                 ignoreSlopWhenSettling = true;
             } else {
                 mTaskBeingDragged = null;
@@ -126,12 +129,12 @@
                         if (!SysUINavigationMode.getMode(mActivity).hasGestures) {
                             // Don't allow swipe down to open if we don't support swipe up
                             // to enter overview.
-                            directionsToDetectScroll = SwipeDetector.DIRECTION_POSITIVE;
+                            directionsToDetectScroll = DIRECTION_POSITIVE;
                         } else {
                             // The task can be dragged up to dismiss it,
                             // and down to open if it's the current page.
                             directionsToDetectScroll = i == mRecentsView.getCurrentPage()
-                                    ? SwipeDetector.DIRECTION_BOTH : SwipeDetector.DIRECTION_POSITIVE;
+                                    ? DIRECTION_BOTH : DIRECTION_POSITIVE;
                         }
                         break;
                     }
@@ -165,8 +168,8 @@
             return;
         }
         int scrollDirections = mDetector.getScrollDirections();
-        if (goingUp && ((scrollDirections & SwipeDetector.DIRECTION_POSITIVE) == 0)
-                || !goingUp && ((scrollDirections & SwipeDetector.DIRECTION_NEGATIVE) == 0)) {
+        if (goingUp && ((scrollDirections & DIRECTION_POSITIVE) == 0)
+                || !goingUp && ((scrollDirections & DIRECTION_NEGATIVE) == 0)) {
             // Trying to re-init in an unsupported direction.
             return;
         }
@@ -243,7 +246,8 @@
     }
 
     @Override
-    public void onDragEnd(float velocity, boolean fling) {
+    public void onDragEnd(float velocity) {
+        boolean fling = mDetector.isFling(velocity);
         final boolean goingToEnd;
         final int logAction;
         boolean blockedFling = fling && mFlingBlockCheck.isBlocked();
@@ -260,7 +264,7 @@
             logAction = Touch.SWIPE;
             goingToEnd = interpolatedProgress > SUCCESS_TRANSITION_PROGRESS;
         }
-        long animationDuration = SwipeDetector.calculateDuration(
+        long animationDuration = BaseSwipeDetector.calculateDuration(
                 velocity, goingToEnd ? (1 - progress) : progress);
         if (blockedFling && !goingToEnd) {
             animationDuration *= LauncherAnimUtils.blockedFlingDurationFactor(velocity);
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/TransposedQuickSwitchTouchController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/TransposedQuickSwitchTouchController.java
index f1e4041..0ed5291 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/TransposedQuickSwitchTouchController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/TransposedQuickSwitchTouchController.java
@@ -17,12 +17,12 @@
 
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.touch.SwipeDetector;
+import com.android.launcher3.touch.SingleAxisSwipeDetector;
 
 public class TransposedQuickSwitchTouchController extends QuickSwitchTouchController {
 
     public TransposedQuickSwitchTouchController(Launcher launcher) {
-        super(launcher, SwipeDetector.VERTICAL);
+        super(launcher, SingleAxisSwipeDetector.VERTICAL);
     }
 
     @Override
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java
index d627a7f..e5d2b41 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java
@@ -15,16 +15,13 @@
  */
 package com.android.quickstep;
 
-import static android.os.VibrationEffect.EFFECT_CLICK;
-import static android.os.VibrationEffect.createPredefined;
-
 import static com.android.launcher3.Utilities.postAsyncCallback;
 import static com.android.launcher3.anim.Interpolators.ACCEL_1_5;
 import static com.android.launcher3.anim.Interpolators.DEACCEL;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;
 import static com.android.launcher3.views.FloatingIconView.SHAPE_PROGRESS_DURATION;
-import static com.android.quickstep.TouchInteractionService.BACKGROUND_EXECUTOR;
-import static com.android.quickstep.TouchInteractionService.MAIN_THREAD_EXECUTOR;
 import static com.android.quickstep.TouchInteractionService.TOUCH_INTERACTION_LOG;
 
 import android.animation.Animator;
@@ -39,14 +36,12 @@
 import android.os.Build;
 import android.os.Handler;
 import android.os.Looper;
-import android.os.VibrationEffect;
-import android.os.Vibrator;
-import android.provider.Settings;
 import android.view.MotionEvent;
 import android.view.View;
-import android.view.WindowManager;
 import android.view.animation.Interpolator;
 
+import androidx.annotation.UiThread;
+
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile;
@@ -54,8 +49,8 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
-import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.graphics.RotationMode;
+import com.android.launcher3.util.VibratorWrapper;
 import com.android.launcher3.views.FloatingIconView;
 import com.android.quickstep.ActivityControlHelper.ActivityInitListener;
 import com.android.quickstep.ActivityControlHelper.HomeAnimationFactory;
@@ -75,8 +70,6 @@
 
 import java.util.function.Consumer;
 
-import androidx.annotation.UiThread;
-
 /**
  * Base class for swipe up handler with some utility methods
  */
@@ -107,7 +100,6 @@
     protected final ClipAnimationHelper mClipAnimationHelper;
     protected final TransformParams mTransformParams = new TransformParams();
 
-    private final Vibrator mVibrator;
     protected final Mode mMode;
 
     // Shift in the range of [0, 1].
@@ -126,7 +118,7 @@
 
     protected Runnable mGestureEndCallback;
 
-    protected final Handler mMainThreadHandler = MAIN_THREAD_EXECUTOR.getHandler();
+    protected final Handler mMainThreadHandler = MAIN_EXECUTOR.getHandler();
     protected MultiStateCallback mStateCallback;
 
     protected boolean mCanceled;
@@ -148,7 +140,6 @@
 
         mClipAnimationHelper = new ClipAnimationHelper(context);
         mPageSpacing = context.getResources().getDimensionPixelSize(R.dimen.recents_page_spacing);
-        mVibrator = context.getSystemService(Vibrator.class);
         initTransitionEndpoints(InvariantDeviceProfile.INSTANCE.get(mContext)
                 .getDeviceProfile(mContext));
     }
@@ -162,19 +153,7 @@
     }
 
     protected void performHapticFeedback() {
-        if (!mVibrator.hasVibrator()) {
-            return;
-        }
-        if (Settings.System.getInt(
-                mContext.getContentResolver(), Settings.System.HAPTIC_FEEDBACK_ENABLED, 0) == 0) {
-            return;
-        }
-
-        VibrationEffect effect = createPredefined(EFFECT_CLICK);
-        if (effect == null) {
-            return;
-        }
-        BACKGROUND_EXECUTOR.execute(() -> mVibrator.vibrate(effect));
+        VibratorWrapper.INSTANCE.get(mContext).vibrate(OVERVIEW_HAPTIC);
     }
 
     public Consumer<MotionEvent> getRecentsViewDispatcher(RotationMode rotationMode) {
@@ -229,10 +208,10 @@
         // Launch the task user scrolled to (mRecentsView.getNextPage()).
         if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
             // We finish recents animation inside launchTask() when live tile is enabled.
-            mRecentsView.getTaskViewAt(mRecentsView.getNextPage()).launchTask(false /* animate */,
+            mRecentsView.getNextPageTaskView().launchTask(false /* animate */,
                     true /* freezeTaskList */);
         } else {
-            int taskId = mRecentsView.getTaskViewAt(mRecentsView.getNextPage()).getTask().key.id;
+            int taskId = mRecentsView.getNextPageTaskView().getTask().key.id;
             mFinishingRecentsAnimationForNewTaskId = taskId;
             mRecentsAnimationWrapper.finish(true /* toRecents */, () -> {
                 if (!mCanceled) {
@@ -275,7 +254,7 @@
             overviewStackBounds = getStackBounds(dp);
         }
         dp.updateInsets(targetSet.homeContentInsets);
-        dp.updateIsSeascape(mContext.getSystemService(WindowManager.class));
+        dp.updateIsSeascape(mContext);
         if (runningTaskTarget != null) {
             mClipAnimationHelper.updateSource(overviewStackBounds, runningTaskTarget);
         }
@@ -407,6 +386,10 @@
         // rounding at the end of the animation.
         float startRadius = mClipAnimationHelper.getCurrentCornerRadius();
         float endRadius = startRect.width() / 6f;
+
+        float startTransformProgress = mTransformParams.getProgress();
+        float endTransformProgress = 1;
+
         // We want the window alpha to be 0 once this threshold is met, so that the
         // FolderIconView can be seen morphing into the icon shape.
         final float windowAlphaThreshold = isFloatingIconView ? 1f - SHAPE_PROGRESS_DURATION : 1f;
@@ -430,7 +413,8 @@
             public void onUpdate(RectF currentRect, float progress) {
                 homeAnim.setPlayFraction(progress);
 
-                mTransformParams.setProgress(progress)
+                mTransformParams.setProgress(
+                        Utilities.mapRange(progress, startTransformProgress, endTransformProgress))
                         .setCurrentRectAndTargetAlpha(currentRect, getWindowAlpha(progress));
                 if (isFloatingIconView) {
                     mTransformParams.setCornerRadius(endRadius * progress + startRadius
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityControllerHelper.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityControllerHelper.java
index 36eb8a1..c0be9ec 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityControllerHelper.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityControllerHelper.java
@@ -24,7 +24,6 @@
 import static com.android.launcher3.LauncherState.BACKGROUND_APP;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.OVERVIEW;
-import static com.android.launcher3.LauncherStateManager.ANIM_ALL;
 import static com.android.launcher3.anim.Interpolators.ACCEL_2;
 import static com.android.launcher3.anim.Interpolators.ACCEL_DEACCEL;
 import static com.android.launcher3.anim.Interpolators.INSTANT;
@@ -53,15 +52,15 @@
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherInitListenerEx;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.LauncherStateManager;
+import com.android.launcher3.QuickstepAppTransitionManagerImpl;
 import com.android.launcher3.allapps.DiscoveryBounce;
 import com.android.launcher3.anim.AnimatorPlaybackController;
-import com.android.launcher3.anim.AnimatorSetBuilder;
-import com.android.launcher3.uioverrides.states.OverviewState;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.views.FloatingIconView;
 import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.util.LayoutUtils;
+import com.android.quickstep.util.ShelfPeekAnim;
+import com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState;
 import com.android.quickstep.util.StaggeredWorkspaceAnim;
 import com.android.quickstep.views.LauncherRecentsView;
 import com.android.quickstep.views.RecentsView;
@@ -167,18 +166,8 @@
 
             @Override
             public void playAtomicAnimation(float velocity) {
-                // Setup workspace with 0 duration to prepare for our staggered animation.
-                LauncherStateManager stateManager = activity.getStateManager();
-                AnimatorSetBuilder builder = new AnimatorSetBuilder();
-                // setRecentsAttachedToAppWindow() will animate recents out.
-                builder.addFlag(AnimatorSetBuilder.FLAG_DONT_ANIMATE_OVERVIEW);
-                stateManager.createAtomicAnimation(BACKGROUND_APP, NORMAL, builder, ANIM_ALL, 0);
-                builder.build().start();
-
-                // Stop scrolling so that it doesn't interfere with the translation offscreen.
-                recentsView.getScroller().forceFinished(true);
-
-                new StaggeredWorkspaceAnim(activity, workspaceView, velocity).start();
+                new StaggeredWorkspaceAnim(activity, velocity, true /* animateOverviewScrim */)
+                        .start();
             }
         };
     }
@@ -201,7 +190,9 @@
         activity.getAppsView().reset(false /* animate */);
 
         return new AnimationFactory() {
-            private ShelfAnimState mShelfState;
+            private final ShelfPeekAnim mShelfAnim =
+                    ((QuickstepAppTransitionManagerImpl) activity.getAppTransitionManager())
+                            .getShelfPeekAnim();
             private boolean mIsAttachedToWindow;
 
             @Override
@@ -230,30 +221,7 @@
             @Override
             public void setShelfState(ShelfAnimState shelfState, Interpolator interpolator,
                     long duration) {
-                if (mShelfState == shelfState) {
-                    return;
-                }
-                mShelfState = shelfState;
-                activity.getStateManager().cancelStateElementAnimation(INDEX_SHELF_ANIM);
-                if (mShelfState == ShelfAnimState.CANCEL) {
-                    return;
-                }
-                float shelfHiddenProgress = BACKGROUND_APP.getVerticalProgress(activity);
-                float shelfOverviewProgress = OVERVIEW.getVerticalProgress(activity);
-                // Peek based on default overview progress so we can see hotseat if we're showing
-                // that instead of predictions in overview.
-                float defaultOverviewProgress = OverviewState.getDefaultVerticalProgress(activity);
-                float shelfPeekingProgress = shelfHiddenProgress
-                        - (shelfHiddenProgress - defaultOverviewProgress) * 0.25f;
-                float toProgress = mShelfState == ShelfAnimState.HIDE
-                        ? shelfHiddenProgress
-                        : mShelfState == ShelfAnimState.PEEK
-                                ? shelfPeekingProgress
-                                : shelfOverviewProgress;
-                Animator shelfAnim = activity.getStateManager()
-                        .createStateElementAnimation(INDEX_SHELF_ANIM, toProgress);
-                shelfAnim.setInterpolator(interpolator);
-                shelfAnim.setDuration(duration).start();
+                mShelfAnim.setShelfState(shelfState, interpolator, duration);
             }
 
             @Override
@@ -268,22 +236,12 @@
                         INDEX_RECENTS_FADE_ANIM, attached ? 1 : 0);
 
                 int runningTaskIndex = recentsView.getRunningTaskIndex();
-                if (runningTaskIndex == 0) {
+                if (runningTaskIndex == recentsView.getTaskViewStartIndex()) {
                     // If we are on the first task (we haven't quick switched), translate recents in
                     // from the side. Calculate the start translation based on current scale/scroll.
                     float currScale = recentsView.getScaleX();
                     float scrollOffsetX = recentsView.getScrollOffset();
-
-                    float offscreenX = NORMAL.getOverviewScaleAndTranslation(activity).translationX;
-                    // The first task is hidden, so offset by its width.
-                    int firstTaskWidth = recentsView.getTaskViewAt(0).getWidth();
-                    offscreenX -= (firstTaskWidth + recentsView.getPageSpacing()) * currScale;
-                    // Offset since scale pushes tasks outwards.
-                    offscreenX += firstTaskWidth * (currScale - 1) / 2;
-                    offscreenX = Math.max(0, offscreenX);
-                    if (recentsView.isRtl()) {
-                        offscreenX = -offscreenX;
-                    }
+                    float offscreenX = recentsView.getOffscreenTranslationX(currScale);
 
                     float fromTranslationX = attached ? offscreenX - scrollOffsetX : 0;
                     float toTranslationX = attached ? 0 : offscreenX - scrollOffsetX;
@@ -351,8 +309,7 @@
     private void playScaleDownAnim(AnimatorSet anim, Launcher launcher, LauncherState fromState,
             LauncherState endState) {
         RecentsView recentsView = launcher.getOverviewPanel();
-        TaskView v = recentsView.getTaskViewAt(recentsView.getCurrentPage());
-        if (v == null) {
+        if (recentsView.getCurrentPageTaskView() == null) {
             return;
         }
 
@@ -380,7 +337,7 @@
             // recents as a whole needs to translate further to keep up with the app window.
             TaskView runningTaskView = recentsView.getRunningTaskView();
             if (runningTaskView == null) {
-                runningTaskView = recentsView.getTaskViewAt(recentsView.getCurrentPage());
+                runningTaskView = recentsView.getCurrentPageTaskView();
                 if (runningTaskView == null) {
                     // There are no task views in LockTask mode when Overview is enabled.
                     return;
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/OverviewCommandHelper.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/OverviewCommandHelper.java
index 222ef97..a8d402e 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/OverviewCommandHelper.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/OverviewCommandHelper.java
@@ -15,8 +15,8 @@
  */
 package com.android.quickstep;
 
-import static com.android.systemui.shared.system.ActivityManagerWrapper
-        .CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -29,7 +29,6 @@
 import android.view.ViewConfiguration;
 
 import com.android.launcher3.BaseDraggingActivity;
-import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.logging.UserEventDispatcher;
 import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
@@ -49,7 +48,6 @@
     private final Context mContext;
     private final ActivityManagerWrapper mAM;
     private final RecentsModel mRecentsModel;
-    private final MainThreadExecutor mMainThreadExecutor;
     private final OverviewComponentObserver mOverviewComponentObserver;
 
     private long mLastToggleTime;
@@ -57,7 +55,6 @@
     public OverviewCommandHelper(Context context, OverviewComponentObserver observer) {
         mContext = context;
         mAM = ActivityManagerWrapper.getInstance();
-        mMainThreadExecutor = new MainThreadExecutor();
         mRecentsModel = RecentsModel.INSTANCE.get(mContext);
         mOverviewComponentObserver = observer;
     }
@@ -69,19 +66,19 @@
         }
 
         mAM.closeSystemWindows(CLOSE_SYSTEM_WINDOWS_REASON_RECENTS);
-        mMainThreadExecutor.execute(new RecentsActivityCommand<>());
+        MAIN_EXECUTOR.execute(new RecentsActivityCommand<>());
     }
 
     public void onOverviewShown(boolean triggeredFromAltTab) {
-        mMainThreadExecutor.execute(new ShowRecentsCommand(triggeredFromAltTab));
+        MAIN_EXECUTOR.execute(new ShowRecentsCommand(triggeredFromAltTab));
     }
 
     public void onOverviewHidden() {
-        mMainThreadExecutor.execute(new HideRecentsCommand());
+        MAIN_EXECUTOR.execute(new HideRecentsCommand());
     }
 
     public void onTip(int actionType, int viewType) {
-        mMainThreadExecutor.execute(() ->
+        MAIN_EXECUTOR.execute(() ->
                 UserEventDispatcher.newInstance(mContext).logActionTip(actionType, viewType));
     }
 
@@ -112,7 +109,7 @@
                 TaskView taskView = rv.getNextTaskView();
                 if (taskView == null) {
                     if (rv.getTaskViewCount() > 0) {
-                        taskView = (TaskView) rv.getPageAt(0);
+                        taskView = rv.getTaskViewAt(0);
                         taskView.requestFocus();
                     } else {
                         rv.requestFocus();
@@ -180,7 +177,7 @@
             // Otherwise, start overview.
             mListener = mHelper.createActivityInitListener(this::onActivityReady);
             mListener.registerAndStartActivity(mOverviewComponentObserver.getOverviewIntent(),
-                    this::createWindowAnimation, mContext, mMainThreadExecutor.getHandler(),
+                    this::createWindowAnimation, mContext, MAIN_EXECUTOR.getHandler(),
                     mAnimationProvider.getRecentsLaunchDuration());
         }
 
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/QuickstepTestInformationHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/QuickstepTestInformationHandler.java
index 2864c46..3c78dd8 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/QuickstepTestInformationHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/QuickstepTestInformationHandler.java
@@ -1,12 +1,12 @@
 package com.android.quickstep;
 
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+
 import android.content.Context;
 import android.os.Bundle;
 
-import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.testing.TestInformationHandler;
 import com.android.launcher3.testing.TestProtocol;
-import com.android.launcher3.uioverrides.states.OverviewState;
 import com.android.launcher3.uioverrides.touchcontrollers.PortraitStatesTouchController;
 import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.views.RecentsView;
@@ -24,7 +24,7 @@
         switch (method) {
             case TestProtocol.REQUEST_HOME_TO_OVERVIEW_SWIPE_HEIGHT: {
                 final float swipeHeight =
-                        OverviewState.getDefaultSwipeHeight(mContext, mDeviceProfile);
+                        LayoutUtils.getDefaultSwipeHeight(mContext, mDeviceProfile);
                 response.putInt(TestProtocol.TEST_INFO_RESPONSE_FIELD, (int) swipeHeight);
                 return response;
             }
@@ -46,7 +46,7 @@
 
             case TestProtocol.REQUEST_OVERVIEW_LEFT_GESTURE_MARGIN: {
                 try {
-                    final int leftMargin = new MainThreadExecutor().submit(() ->
+                    final int leftMargin = MAIN_EXECUTOR.submit(() ->
                             mLauncher.<RecentsView>getOverviewPanel().getLeftGestureMargin()).get();
                     response.putInt(TestProtocol.TEST_INFO_RESPONSE_FIELD, leftMargin);
                 } catch (ExecutionException e) {
@@ -59,7 +59,7 @@
 
             case TestProtocol.REQUEST_OVERVIEW_RIGHT_GESTURE_MARGIN: {
                 try {
-                    final int rightMargin = new MainThreadExecutor().submit(() ->
+                    final int rightMargin = MAIN_EXECUTOR.submit(() ->
                             mLauncher.<RecentsView>getOverviewPanel().getRightGestureMargin()).
                             get();
                     response.putInt(TestProtocol.TEST_INFO_RESPONSE_FIELD, rightMargin);
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java
index f08ae4a..9bdc98b 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java
@@ -136,6 +136,12 @@
     }
 
     @Override
+    public void returnToHomescreen() {
+        super.returnToHomescreen();
+        // TODO(b/137318995) This should go home, but doing so removes freeform windows
+    }
+
+    @Override
     public ActivityOptions getActivityLaunchOptions(final View v) {
         if (!(v instanceof TaskView)) {
             return null;
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsAnimationWrapper.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsAnimationWrapper.java
index e51ba63..c4d3fa0 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsAnimationWrapper.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsAnimationWrapper.java
@@ -19,6 +19,8 @@
 import static android.view.MotionEvent.ACTION_DOWN;
 import static android.view.MotionEvent.ACTION_UP;
 
+import android.os.SystemClock;
+import android.util.Log;
 import android.view.InputEvent;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
@@ -38,6 +40,8 @@
  */
 public class RecentsAnimationWrapper {
 
+    private static final String TAG = "RecentsAnimationWrapper";
+
     // A list of callbacks to run when we receive the recents animation target. There are different
     // than the state callbacks as these run on the current worker thread.
     private final ArrayList<Runnable> mCallbacks = new ArrayList<>();
@@ -125,6 +129,7 @@
             boolean sendUserLeaveHint) {
         SwipeAnimationTargetSet controller = targetSet;
         targetSet = null;
+        disableInputProxy();
         if (controller != null) {
             controller.finishController(toRecents, onFinishComplete, sendUserLeaveHint);
         }
@@ -153,6 +158,16 @@
         mInputConsumerController.setInputListener(this::onInputConsumerEvent);
     }
 
+    private void disableInputProxy() {
+        if (mInputConsumer != null && mTouchInProgress) {
+            long now = SystemClock.uptimeMillis();
+            MotionEvent dummyCancel = MotionEvent.obtain(now,  now, ACTION_CANCEL, 0, 0, 0);
+            mInputConsumer.onMotionEvent(dummyCancel);
+            dummyCancel.recycle();
+        }
+        mInputConsumerController.setInputListener(null);
+    }
+
     private boolean onInputConsumerEvent(InputEvent ev) {
         if (ev instanceof MotionEvent) {
             onInputConsumerMotionEvent((MotionEvent) ev);
@@ -168,6 +183,18 @@
 
     private boolean onInputConsumerMotionEvent(MotionEvent ev) {
         int action = ev.getAction();
+
+        // Just to be safe, verify that ACTION_DOWN comes before any other action,
+        // and ignore any ACTION_DOWN after the first one (though that should not happen).
+        if (!mTouchInProgress && action != ACTION_DOWN) {
+            Log.w(TAG, "Received non-down motion before down motion: " + action);
+            return false;
+        }
+        if (mTouchInProgress && action == ACTION_DOWN) {
+            Log.w(TAG, "Received down motion while touch was already in progress");
+            return false;
+        }
+
         if (action == ACTION_DOWN) {
             mTouchInProgress = true;
             if (mInputConsumer == null) {
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/SwipeSharedState.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/SwipeSharedState.java
index c55f656..8783ee3 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/SwipeSharedState.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/SwipeSharedState.java
@@ -15,7 +15,7 @@
  */
 package com.android.quickstep;
 
-import static com.android.quickstep.TouchInteractionService.MAIN_THREAD_EXECUTOR;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 
 import android.util.Log;
 
@@ -25,6 +25,7 @@
 import com.android.quickstep.util.RecentsAnimationListenerSet;
 import com.android.quickstep.util.SwipeAnimationTargetSet;
 import com.android.quickstep.util.SwipeAnimationTargetSet.SwipeAnimationListener;
+
 import java.io.PrintWriter;
 
 /**
@@ -44,6 +45,7 @@
     public boolean goingToLauncher;
     public boolean recentsAnimationFinishInterrupted;
     public int nextRunningTaskId = -1;
+    private int mLogId;
 
     public void setOverviewComponentObserver(OverviewComponentObserver observer) {
         mOverviewComponentObserver = observer;
@@ -77,7 +79,7 @@
             mRecentsAnimationListener.removeListener(this);
             mRecentsAnimationListener.cancelListener();
             if (mLastAnimationRunning && mLastAnimationTarget != null) {
-                Utilities.postAsyncCallback(MAIN_THREAD_EXECUTOR.getHandler(),
+                Utilities.postAsyncCallback(MAIN_EXECUTOR.getHandler(),
                         finishAnimation
                                 ? mLastAnimationTarget::finishAnimation
                                 : mLastAnimationTarget::cancelAnimation);
@@ -155,5 +157,10 @@
         pw.println(prefix + "nextRunningTaskId=" + nextRunningTaskId);
         pw.println(prefix + "lastAnimationCancelled=" + mLastAnimationCancelled);
         pw.println(prefix + "lastAnimationRunning=" + mLastAnimationRunning);
+        pw.println(prefix + "logTraceId=" + mLogId);
+    }
+
+    public void setLogTraceId(int logId) {
+        this.mLogId = logId;
     }
 }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/TaskSystemShortcut.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/TaskSystemShortcut.java
index fd45923..1af0db0 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/TaskSystemShortcut.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/TaskSystemShortcut.java
@@ -36,8 +36,6 @@
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.ItemInfo;
-import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
 import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.popup.SystemShortcut;
@@ -267,12 +265,16 @@
 
         @Override
         protected ActivityOptions makeLaunchOptions(Activity activity) {
-            return ActivityOptionsCompat.makeFreeformOptions();
+            ActivityOptions activityOptions = ActivityOptionsCompat.makeFreeformOptions();
+            // Arbitrary bounds only because freeform is in dev mode right now
+            Rect r = new Rect(50, 50, 200, 200);
+            activityOptions.setLaunchBounds(r);
+            return activityOptions;
         }
 
         @Override
         protected boolean onActivityStarted(BaseDraggingActivity activity) {
-            Launcher.getLauncher(activity).getStateManager().goToState(LauncherState.NORMAL);
+            activity.returnToHomescreen();
             return true;
         }
     }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java
index 3d0a794..2fa789f 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java
@@ -23,6 +23,8 @@
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
 import static com.android.launcher3.config.FeatureFlags.FAKE_LANDSCAPE_UI;
 import static com.android.launcher3.config.FeatureFlags.QUICKSTEP_SPRINGS;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 import static com.android.systemui.shared.system.QuickStepContract.KEY_EXTRA_INPUT_MONITOR;
 import static com.android.systemui.shared.system.QuickStepContract.KEY_EXTRA_SYSUI_PROXY;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_A11Y_BUTTON_CLICKABLE;
@@ -40,7 +42,6 @@
 import android.app.ActivityManager;
 import android.app.ActivityManager.RunningTaskInfo;
 import android.app.Service;
-import android.app.TaskInfo;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
@@ -50,8 +51,6 @@
 import android.graphics.Point;
 import android.graphics.RectF;
 import android.graphics.Region;
-import android.hardware.display.DisplayManager;
-import android.hardware.display.DisplayManager.DisplayListener;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.IBinder;
@@ -61,29 +60,26 @@
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.Choreographer;
-import android.view.Display;
 import android.view.InputEvent;
 import android.view.MotionEvent;
 import android.view.Surface;
-import android.view.WindowManager;
 
 import androidx.annotation.BinderThread;
 import androidx.annotation.UiThread;
 import androidx.annotation.WorkerThread;
 
 import com.android.launcher3.BaseDraggingActivity;
-import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.R;
 import com.android.launcher3.ResourceUtils;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.compat.UserManagerCompat;
+import com.android.launcher3.config.BaseFlags;
 import com.android.launcher3.logging.EventLogArray;
 import com.android.launcher3.logging.UserEventDispatcher;
 import com.android.launcher3.model.AppLaunchTracker;
 import com.android.launcher3.provider.RestoreDbTask;
 import com.android.launcher3.testing.TestProtocol;
-import com.android.launcher3.util.LooperExecutor;
-import com.android.launcher3.util.UiThreadHelper;
+import com.android.launcher3.util.DefaultDisplay;
 import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.SysUINavigationMode.NavigationModeChangeListener;
 import com.android.quickstep.inputconsumers.AccessibilityInputConsumer;
@@ -96,6 +92,7 @@
 import com.android.quickstep.inputconsumers.OverviewWithoutFocusInputConsumer;
 import com.android.quickstep.inputconsumers.ResetGestureInputConsumer;
 import com.android.quickstep.inputconsumers.ScreenPinnedInputConsumer;
+import com.android.quickstep.util.AssistantUtilities;
 import com.android.systemui.shared.recents.IOverviewProxy;
 import com.android.systemui.shared.recents.ISystemUiProxy;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
@@ -107,7 +104,6 @@
 import com.android.systemui.shared.system.RecentsAnimationListener;
 import com.android.systemui.shared.system.SystemGestureExclusionListenerCompat;
 
-import com.android.systemui.shared.system.TaskInfoCompat;
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.util.Arrays;
@@ -136,11 +132,14 @@
  */
 @TargetApi(Build.VERSION_CODES.Q)
 public class TouchInteractionService extends Service implements
-        NavigationModeChangeListener, DisplayListener {
+        NavigationModeChangeListener, DefaultDisplay.DisplayInfoChangeListener {
 
-    public static final MainThreadExecutor MAIN_THREAD_EXECUTOR = new MainThreadExecutor();
-    public static final LooperExecutor BACKGROUND_EXECUTOR =
-            new LooperExecutor(UiThreadHelper.getBackgroundLooper());
+    /**
+     * NOTE: This value should be kept same as
+     * ActivityTaskManagerService#INTENT_EXTRA_LOG_TRACE_ID in platform
+     */
+    public static final String INTENT_EXTRA_LOG_TRACE_ID = "INTENT_EXTRA_LOG_TRACE_ID";
+
 
     public static final EventLogArray TOUCH_INTERACTION_LOG =
             new EventLogArray("touch_interaction_log", 40);
@@ -161,9 +160,9 @@
         public void onInitialize(Bundle bundle) {
             mISystemUiProxy = ISystemUiProxy.Stub
                     .asInterface(bundle.getBinder(KEY_EXTRA_SYSUI_PROXY));
-            MAIN_THREAD_EXECUTOR.execute(TouchInteractionService.this::initInputMonitor);
-            MAIN_THREAD_EXECUTOR.execute(TouchInteractionService.this::onSystemUiProxySet);
-            MAIN_THREAD_EXECUTOR.execute(() -> preloadOverview(true /* fromInit */));
+            MAIN_EXECUTOR.execute(TouchInteractionService.this::initInputMonitor);
+            MAIN_EXECUTOR.execute(TouchInteractionService.this::onSystemUiProxySet);
+            MAIN_EXECUTOR.execute(() -> preloadOverview(true /* fromInit */));
             sIsInitialized = true;
         }
 
@@ -198,7 +197,7 @@
         @Override
         public void onAssistantVisibilityChanged(float visibility) {
             mLastAssistantVisibility = visibility;
-            MAIN_THREAD_EXECUTOR.execute(
+            MAIN_EXECUTOR.execute(
                     TouchInteractionService.this::onAssistantVisibilityChanged);
         }
 
@@ -214,13 +213,13 @@
                     isButton, gestureSwipeLeft, activityControl.getContainerType());
 
             if (completed && !isButton && shouldNotifyBackGesture()) {
-                BACKGROUND_EXECUTOR.execute(TouchInteractionService.this::tryNotifyBackGesture);
+                UI_HELPER_EXECUTOR.execute(TouchInteractionService.this::tryNotifyBackGesture);
             }
         }
 
         public void onSystemUiStateChanged(int stateFlags) {
             mSystemUiStateFlags = stateFlags;
-            MAIN_THREAD_EXECUTOR.execute(TouchInteractionService.this::onSystemUiFlagsChanged);
+            MAIN_EXECUTOR.execute(TouchInteractionService.this::onSystemUiFlagsChanged);
         }
 
         /** Deprecated methods **/
@@ -244,6 +243,7 @@
     private static boolean sConnected = false;
     private static boolean sIsInitialized = false;
     private static final SwipeSharedState sSwipeSharedState = new SwipeSharedState();
+    private int mLogId;
 
     public static boolean isConnected() {
         return sConnected;
@@ -323,8 +323,7 @@
             registerReceiver(mUserUnlockedReceiver, new IntentFilter(Intent.ACTION_USER_UNLOCKED));
         }
 
-        mDefaultDisplayId = getSystemService(WindowManager.class).getDefaultDisplay()
-                .getDisplayId();
+        mDefaultDisplayId = DefaultDisplay.INSTANCE.get(this).getInfo().id;
         String blockingActivity = getString(R.string.gesture_blocking_activity);
         mGestureBlockingActivity = TextUtils.isEmpty(blockingActivity) ? null :
                 ComponentName.unflattenFromString(blockingActivity);
@@ -391,9 +390,8 @@
             return;
         }
 
-        Display defaultDisplay = getSystemService(WindowManager.class).getDefaultDisplay();
-        Point realSize = new Point();
-        defaultDisplay.getRealSize(realSize);
+        DefaultDisplay.Info displayInfo = DefaultDisplay.INSTANCE.get(this).getInfo();
+        Point realSize = new Point(displayInfo.realSize);
         mSwipeTouchRegion.set(0, 0, realSize.x, realSize.y);
         if (mMode == Mode.NO_BUTTON) {
             int touchHeight = getNavbarSize(ResourceUtils.NAVBAR_BOTTOM_GESTURE_SIZE);
@@ -415,7 +413,7 @@
         } else {
             mAssistantLeftRegion.setEmpty();
             mAssistantRightRegion.setEmpty();
-            switch (defaultDisplay.getRotation()) {
+            switch (displayInfo.rotation) {
                 case Surface.ROTATION_90:
                     mSwipeTouchRegion.left = mSwipeTouchRegion.right
                             - getNavbarSize(ResourceUtils.NAVBAR_LANDSCAPE_LEFT_RIGHT_SIZE);
@@ -438,10 +436,9 @@
         }
         if (mMode.hasGestures != newMode.hasGestures) {
             if (newMode.hasGestures) {
-                getSystemService(DisplayManager.class).registerDisplayListener(
-                        this, MAIN_THREAD_EXECUTOR.getHandler());
+                DefaultDisplay.INSTANCE.get(this).addChangeListener(this);
             } else {
-                getSystemService(DisplayManager.class).unregisterDisplayListener(this);
+                DefaultDisplay.INSTANCE.get(this).removeChangeListener(this);
             }
         }
         mMode = newMode;
@@ -457,14 +454,8 @@
     }
 
     @Override
-    public void onDisplayAdded(int i) { }
-
-    @Override
-    public void onDisplayRemoved(int i) { }
-
-    @Override
-    public void onDisplayChanged(int displayId) {
-        if (displayId != mDefaultDisplayId) {
+    public void onDisplayInfoChanged(DefaultDisplay.Info info, int flags) {
+        if (info.id != mDefaultDisplayId) {
             return;
         }
 
@@ -529,7 +520,7 @@
         }
         disposeEventHandlers();
         if (mMode.hasGestures) {
-            getSystemService(DisplayManager.class).unregisterDisplayListener(this);
+            DefaultDisplay.INSTANCE.get(this).removeChangeListener(this);
         }
 
         sConnected = false;
@@ -554,9 +545,12 @@
             Log.e(TAG, "Unknown event " + ev);
             return;
         }
+
         MotionEvent event = (MotionEvent) ev;
-        TOUCH_INTERACTION_LOG.addLog("onMotionEvent", event.getActionMasked());
         if (event.getAction() == ACTION_DOWN) {
+            mLogId = TOUCH_INTERACTION_LOG.generateAndSetLogId();
+            sSwipeSharedState.setLogTraceId(mLogId);
+
             if (mSwipeTouchRegion.contains(event.getX(), event.getY())) {
                 boolean useSharedState = mConsumer.useSharedSwipeState();
                 mConsumer.onConsumerAboutToBeSwitched();
@@ -580,6 +574,8 @@
                 mUncheckedConsumer = InputConsumer.NO_OP;
             }
         }
+
+        TOUCH_INTERACTION_LOG.addLog("onMotionEvent", event.getActionMasked());
         mUncheckedConsumer.onMotionEvent(event);
     }
 
@@ -662,16 +658,14 @@
                 mOverviewComponentObserver.getActivityControlHelper();
 
         boolean forceOverviewInputConsumer = false;
-        if (isExcludedAssistant(runningTaskInfo)) {
+        if (AssistantUtilities.isExcludedAssistant(runningTaskInfo)) {
             // In the case where we are in the excluded assistant state, ignore it and treat the
             // running activity as the task behind the assistant
-            runningTaskInfo = mAM.getRunningTask(ACTIVITY_TYPE_ASSISTANT);
-            if (!ActivityManagerWrapper.isHomeTask(runningTaskInfo)) {
-                final ComponentName homeComponent =
-                    mOverviewComponentObserver.getHomeIntent().getComponent();
-                forceOverviewInputConsumer =
-                    runningTaskInfo.baseIntent.getComponent().equals(homeComponent);
-            }
+            runningTaskInfo = mAM.getRunningTask(ACTIVITY_TYPE_ASSISTANT /* ignoreActivityType */);
+            ComponentName homeComponent = mOverviewComponentObserver.getHomeIntent().getComponent();
+            ComponentName runningComponent = runningTaskInfo.baseIntent.getComponent();
+            forceOverviewInputConsumer =
+                runningComponent != null && runningComponent.equals(homeComponent);
         }
 
         if (runningTaskInfo == null && !sSwipeSharedState.goingToLauncher
@@ -685,9 +679,9 @@
             return createOtherActivityInputConsumer(event, info);
         } else if (sSwipeSharedState.goingToLauncher || activityControl.isResumed()
                 || forceOverviewInputConsumer) {
-            return createOverviewInputConsumer(event);
+            return createOverviewInputConsumer(event, forceOverviewInputConsumer);
         } else if (ENABLE_QUICKSTEP_LIVE_TILE.get() && activityControl.isInLiveTileMode()) {
-            return createOverviewInputConsumer(event);
+            return createOverviewInputConsumer(event, forceOverviewInputConsumer);
         } else if (mGestureBlockingActivity != null && runningTaskInfo != null
                 && mGestureBlockingActivity.equals(runningTaskInfo.topActivity)) {
             return mResetGestureInputConsumer;
@@ -696,12 +690,6 @@
         }
     }
 
-    private boolean isExcludedAssistant(TaskInfo info) {
-        return info != null
-                && TaskInfoCompat.getActivityType(info) == ACTIVITY_TYPE_ASSISTANT
-                && (info.baseIntent.getFlags() & Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS) != 0;
-    }
-
     private boolean disableHorizontalSwipe(MotionEvent event) {
         // mExclusionRegion can change on binder thread, use a local instance here.
         Region exclusionRegion = mExclusionRegion;
@@ -727,19 +715,20 @@
         return new OtherActivityInputConsumer(this, runningTaskInfo,
                 shouldDefer, mOverviewCallbacks, this::onConsumerInactive,
                 sSwipeSharedState, mInputMonitorCompat, mSwipeTouchRegion,
-                disableHorizontalSwipe(event), factory);
+                disableHorizontalSwipe(event), factory, mLogId);
     }
 
     private InputConsumer createDeviceLockedInputConsumer(RunningTaskInfo taskInfo) {
         if (mMode == Mode.NO_BUTTON && taskInfo != null) {
             return new DeviceLockedInputConsumer(this, sSwipeSharedState, mInputMonitorCompat,
-                    mSwipeTouchRegion, taskInfo.taskId);
+                    mSwipeTouchRegion, taskInfo.taskId, mLogId);
         } else {
             return mResetGestureInputConsumer;
         }
     }
 
-    public InputConsumer createOverviewInputConsumer(MotionEvent event) {
+    public InputConsumer createOverviewInputConsumer(MotionEvent event,
+            boolean forceOverviewInputConsumer) {
         final ActivityControlHelper activityControl =
                 mOverviewComponentObserver.getActivityControlHelper();
         BaseDraggingActivity activity = activityControl.getCreatedActivity();
@@ -747,7 +736,10 @@
             return mResetGestureInputConsumer;
         }
 
-        if (activity.getRootView().hasWindowFocus() || sSwipeSharedState.goingToLauncher) {
+        if (activity.getRootView().hasWindowFocus()
+                || sSwipeSharedState.goingToLauncher
+                || (BaseFlags.ASSISTANT_GIVES_LAUNCHER_FOCUS.get()
+                    && forceOverviewInputConsumer)) {
             return new OverviewInputConsumer(activity, mInputMonitorCompat,
                     false /* startingInActivityBounds */);
         } else {
@@ -797,7 +789,8 @@
         }
 
         // Pass null animation handler to indicate this start is preload.
-        startRecentsActivityAsync(mOverviewComponentObserver.getOverviewIntentIgnoreSysUiState(), null);
+        startRecentsActivityAsync(mOverviewComponentObserver.getOverviewIntentIgnoreSysUiState(),
+                null);
     }
 
     @Override
@@ -906,7 +899,7 @@
     }
 
     public static void startRecentsActivityAsync(Intent intent, RecentsAnimationListener listener) {
-        BACKGROUND_EXECUTOR.execute(() -> ActivityManagerWrapper.getInstance()
+        UI_HELPER_EXECUTOR.execute(() -> ActivityManagerWrapper.getInstance()
                 .startRecentsActivity(intent, null, listener, null, null));
     }
 }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/WindowTransformSwipeHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/WindowTransformSwipeHandler.java
index a3bd348..2fa4feb 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/WindowTransformSwipeHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/WindowTransformSwipeHandler.java
@@ -26,14 +26,14 @@
 import static com.android.launcher3.util.RaceConditionTracker.ENTER;
 import static com.android.launcher3.util.RaceConditionTracker.EXIT;
 import static com.android.launcher3.util.SystemUiController.UI_STATE_OVERVIEW;
-import static com.android.quickstep.ActivityControlHelper.AnimationFactory.ShelfAnimState.HIDE;
-import static com.android.quickstep.ActivityControlHelper.AnimationFactory.ShelfAnimState.PEEK;
 import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
 import static com.android.quickstep.TouchInteractionService.TOUCH_INTERACTION_LOG;
 import static com.android.quickstep.WindowTransformSwipeHandler.GestureEndTarget.HOME;
 import static com.android.quickstep.WindowTransformSwipeHandler.GestureEndTarget.LAST_TASK;
 import static com.android.quickstep.WindowTransformSwipeHandler.GestureEndTarget.NEW_TASK;
 import static com.android.quickstep.WindowTransformSwipeHandler.GestureEndTarget.RECENTS;
+import static com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState.HIDE;
+import static com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState.PEEK;
 import static com.android.quickstep.views.RecentsView.UPDATE_SYSUI_FLAGS_THRESHOLD;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_OVERVIEW_DISABLED;
 
@@ -74,13 +74,14 @@
 import com.android.launcher3.util.RaceConditionTracker;
 import com.android.launcher3.util.TraceHelper;
 import com.android.quickstep.ActivityControlHelper.AnimationFactory;
-import com.android.quickstep.ActivityControlHelper.AnimationFactory.ShelfAnimState;
 import com.android.quickstep.ActivityControlHelper.HomeAnimationFactory;
 import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.inputconsumers.InputConsumer;
 import com.android.quickstep.inputconsumers.OverviewInputConsumer;
 import com.android.quickstep.util.ClipAnimationHelper.TargetAlphaProvider;
 import com.android.quickstep.util.RectFSpringAnim;
+import com.android.quickstep.util.ShelfPeekAnim;
+import com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState;
 import com.android.quickstep.util.SwipeAnimationTargetSet;
 import com.android.quickstep.views.LiveTileOverlay;
 import com.android.quickstep.views.RecentsView;
@@ -192,7 +193,6 @@
             Math.min(1 / MIN_PROGRESS_FOR_OVERVIEW, 1 / (1 - MIN_PROGRESS_FOR_OVERVIEW));
     private static final String SCREENSHOT_CAPTURED_EVT = "ScreenshotCaptured";
 
-    private static final long SHELF_ANIM_DURATION = 240;
     public static final long RECENTS_ATTACH_DURATION = 300;
 
     /**
@@ -206,8 +206,6 @@
     private boolean mIsShelfPeeking;
 
     private boolean mContinuingLastGesture;
-    // To avoid UI jump when gesture is started, we offset the animation by the threshold.
-    private float mShiftAtGestureStart = 0;
 
     private ThumbnailData mTaskSnapshot;
 
@@ -442,7 +440,7 @@
 
     @Override
     public void onMotionPauseChanged(boolean isPaused) {
-        setShelfState(isPaused ? PEEK : HIDE, OVERSHOOT_1_2, SHELF_ANIM_DURATION);
+        setShelfState(isPaused ? PEEK : HIDE, ShelfPeekAnim.INTERPOLATOR, ShelfPeekAnim.DURATION);
     }
 
     public void maybeUpdateRecentsAttachedState() {
@@ -479,8 +477,8 @@
             recentsAttachedToAppWindow = mIsShelfPeeking || mIsLikelyToStartNewTask;
             if (animate) {
                 // Only animate if an adjacent task view is visible on screen.
-                TaskView adjacentTask1 = mRecentsView.getTaskViewAt(runningTaskIndex + 1);
-                TaskView adjacentTask2 = mRecentsView.getTaskViewAt(runningTaskIndex - 1);
+                TaskView adjacentTask1 = mRecentsView.getNextTaskView();
+                TaskView adjacentTask2 = mRecentsView.getPreviousTaskView();
                 float prevTranslationX = mRecentsView.getTranslationX();
                 mRecentsView.setTranslationX(0);
                 animate = (adjacentTask1 != null && adjacentTask1.getGlobalVisibleRect(TEMP_RECT))
@@ -580,9 +578,7 @@
         // Normalize the progress to 0 to 1, as the animation controller will clamp it to that
         // anyway. The controller mimics the drag length factor by applying it to its interpolators.
         float progress = mCurrentShift.value / mDragLengthFactor;
-        mLauncherTransitionController.setPlayFraction(
-                progress <= mShiftAtGestureStart || mShiftAtGestureStart >= 1
-                        ? 0 : (progress - mShiftAtGestureStart) / (1 - mShiftAtGestureStart));
+        mLauncherTransitionController.setPlayFraction(progress);
     }
 
     /**
@@ -590,8 +586,7 @@
      */
     private void updateSysUiFlags(float windowProgress) {
         if (mRecentsView != null) {
-            TaskView centermostTask = mRecentsView.getTaskViewAt(mRecentsView
-                    .getPageNearestToCenterOfScreen());
+            TaskView centermostTask = mRecentsView.getTaskViewNearestToCenterOfScreen();
             int centermostTaskFlags = centermostTask == null ? 0
                     : centermostTask.getThumbnail().getSysUiStatusNavFlags();
             boolean useHomeScreenFlags = windowProgress > 1 - UPDATE_SYSUI_FLAGS_THRESHOLD;
@@ -623,7 +618,6 @@
     @Override
     public void onGestureStarted() {
         notifyGestureStartedAsync();
-        mShiftAtGestureStart = mCurrentShift.value;
         setStateOnUiThread(STATE_GESTURE_STARTED);
         mGestureStarted = true;
     }
@@ -923,7 +917,15 @@
             windowAnim.addListener(new AnimationSuccessListener() {
                 @Override
                 public void onAnimationSuccess(Animator animator) {
-                    setStateOnUiThread(target.endState);
+                    if (target == NEW_TASK && mRecentsView != null
+                            && mRecentsView.getNextPage() == mRecentsView.getRunningTaskIndex()) {
+                        // We are about to launch the current running task, so use LAST_TASK state
+                        // instead of NEW_TASK. This could happen, for example, if our scroll is
+                        // aborted after we determined the target to be NEW_TASK.
+                        setStateOnUiThread(LAST_TASK.endState);
+                    } else {
+                        setStateOnUiThread(target.endState);
+                    }
                 }
             });
             windowAnim.start();
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java
index 2e9c0a3..7f1aae5 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java
@@ -176,7 +176,7 @@
     protected void applyLoadPlan(ArrayList<Task> tasks) {
         // When quick-switching on 3p-launcher, we add a "dummy" tile corresponding to Launcher
         // as well. This tile is never shown as we have setCurrentTaskHidden, but allows use to
-        // track the index of the next task appropriately, as it we are switching on any other app.
+        // track the index of the next task appropriately, as if we are switching on any other app.
         if (mRunningTaskInfo != null && mRunningTaskInfo.taskId == mRunningTaskId) {
             // Check if the task list has running task
             boolean found = false;
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java
index 3d763ab..b24c788 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java
@@ -22,8 +22,9 @@
 import static com.android.launcher3.Utilities.squaredHypot;
 import static com.android.launcher3.Utilities.squaredTouchSlop;
 import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
-import static com.android.quickstep.WindowTransformSwipeHandler.MIN_PROGRESS_FOR_OVERVIEW;
+import static com.android.quickstep.TouchInteractionService.INTENT_EXTRA_LOG_TRACE_ID;
 import static com.android.quickstep.TouchInteractionService.startRecentsActivityAsync;
+import static com.android.quickstep.WindowTransformSwipeHandler.MIN_PROGRESS_FOR_OVERVIEW;
 
 import android.content.ComponentName;
 import android.content.Context;
@@ -35,10 +36,10 @@
 import android.view.MotionEvent;
 import android.view.VelocityTracker;
 import android.view.ViewConfiguration;
-import android.view.WindowManager;
 
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.util.DefaultDisplay;
 import com.android.quickstep.LockScreenRecentsActivity;
 import com.android.quickstep.MultiStateCallback;
 import com.android.quickstep.SwipeSharedState;
@@ -76,6 +77,7 @@
 
     private final PointF mTouchDown = new PointF();
     private final ClipAnimationHelper mClipAnimationHelper;
+    private int mLogId;
     private final ClipAnimationHelper.TransformParams mTransformParams;
     private final Point mDisplaySize;
     private final MultiStateCallback mStateCallback;
@@ -90,19 +92,20 @@
     private SwipeAnimationTargetSet mTargetSet;
 
     public DeviceLockedInputConsumer(Context context, SwipeSharedState swipeSharedState,
-            InputMonitorCompat inputMonitorCompat, RectF swipeTouchRegion, int runningTaskId) {
+            InputMonitorCompat inputMonitorCompat, RectF swipeTouchRegion, int runningTaskId,
+            int logId) {
         mContext = context;
         mTouchSlopSquared = squaredTouchSlop(context);
         mSwipeSharedState = swipeSharedState;
         mClipAnimationHelper = new ClipAnimationHelper(context);
+        mLogId = logId;
         mTransformParams = new ClipAnimationHelper.TransformParams();
         mInputMonitorCompat = inputMonitorCompat;
         mSwipeTouchRegion = swipeTouchRegion;
         mRunningTaskId = runningTaskId;
 
         // Do not use DeviceProfile as the user data might be locked
-        mDisplaySize = new Point();
-        context.getSystemService(WindowManager.class).getDefaultDisplay().getRealSize(mDisplaySize);
+        mDisplaySize = DefaultDisplay.INSTANCE.get(context).getInfo().realSize;
 
         // Init states
         mStateCallback = new MultiStateCallback(STATE_NAMES);
@@ -205,7 +208,8 @@
         Intent intent = new Intent(Intent.ACTION_MAIN)
                 .addCategory(Intent.CATEGORY_DEFAULT)
                 .setComponent(new ComponentName(mContext, LockScreenRecentsActivity.class))
-                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
+                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK)
+                .putExtra(INTENT_EXTRA_LOG_TRACE_ID, mLogId);
 
         mInputMonitorCompat.pilferPointers();
         startRecentsActivityAsync(intent, newListenerSet);
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/FallbackNoButtonInputConsumer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/FallbackNoButtonInputConsumer.java
index 6ec1da0..e0ff8af 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/FallbackNoButtonInputConsumer.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/FallbackNoButtonInputConsumer.java
@@ -50,7 +50,6 @@
 import com.android.quickstep.util.ObjectWrapper;
 import com.android.quickstep.util.RectFSpringAnim;
 import com.android.quickstep.util.SwipeAnimationTargetSet;
-import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
index 86766d9..e41880d 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
@@ -22,11 +22,11 @@
 import static android.view.MotionEvent.ACTION_POINTER_UP;
 import static android.view.MotionEvent.ACTION_UP;
 import static android.view.MotionEvent.INVALID_POINTER_ID;
-
 import static com.android.launcher3.Utilities.EDGE_NAV_BAR;
 import static com.android.launcher3.Utilities.squaredHypot;
 import static com.android.launcher3.util.RaceConditionTracker.ENTER;
 import static com.android.launcher3.util.RaceConditionTracker.EXIT;
+import static com.android.quickstep.TouchInteractionService.INTENT_EXTRA_LOG_TRACE_ID;
 import static com.android.quickstep.TouchInteractionService.TOUCH_INTERACTION_LOG;
 import static com.android.quickstep.TouchInteractionService.startRecentsActivityAsync;
 import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
@@ -35,6 +35,7 @@
 import android.app.ActivityManager.RunningTaskInfo;
 import android.content.Context;
 import android.content.ContextWrapper;
+import android.content.Intent;
 import android.graphics.PointF;
 import android.graphics.RectF;
 import android.os.Build;
@@ -43,12 +44,13 @@
 import android.view.MotionEvent;
 import android.view.VelocityTracker;
 import android.view.ViewConfiguration;
-
+import androidx.annotation.UiThread;
 import com.android.launcher3.R;
 import com.android.launcher3.util.Preconditions;
 import com.android.launcher3.util.RaceConditionTracker;
 import com.android.launcher3.util.TraceHelper;
 import com.android.quickstep.BaseSwipeUpHandler;
+import com.android.quickstep.BaseSwipeUpHandler.Factory;
 import com.android.quickstep.OverviewCallbacks;
 import com.android.quickstep.SwipeSharedState;
 import com.android.quickstep.SysUINavigationMode;
@@ -59,11 +61,8 @@
 import com.android.quickstep.util.RecentsAnimationListenerSet;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
 import com.android.systemui.shared.system.InputMonitorCompat;
-
 import java.util.function.Consumer;
 
-import androidx.annotation.UiThread;
-
 /**
  * Input consumer for handling events originating from an activity other than Launcher
  */
@@ -119,14 +118,16 @@
         ActivityManagerWrapper.getInstance().cancelRecentsAnimation(
                 true /* restoreHomeStackPosition */);
     };
+    private int mLogId;
 
     public OtherActivityInputConsumer(Context base, RunningTaskInfo runningTaskInfo,
             boolean isDeferredDownTarget, OverviewCallbacks overviewCallbacks,
             Consumer<OtherActivityInputConsumer> onCompleteCallback,
             SwipeSharedState swipeSharedState, InputMonitorCompat inputMonitorCompat,
             RectF swipeTouchRegion, boolean disableHorizontalSwipe,
-            BaseSwipeUpHandler.Factory handlerFactory) {
+            Factory handlerFactory, int logId) {
         super(base);
+        mLogId = logId;
 
         mMainThreadHandler = new Handler(Looper.getMainLooper());
         mRunningTask = runningTaskInfo;
@@ -341,7 +342,9 @@
             RecentsAnimationListenerSet newListenerSet =
                     mSwipeSharedState.newRecentsAnimationListenerSet();
             newListenerSet.addListener(handler);
-            startRecentsActivityAsync(handler.getLaunchIntent(), newListenerSet);
+            Intent intent = handler.getLaunchIntent();
+            intent.putExtra(INTENT_EXTRA_LOG_TRACE_ID, mLogId);
+            startRecentsActivityAsync(intent, newListenerSet);
         }
     }
 
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OverviewWithoutFocusInputConsumer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OverviewWithoutFocusInputConsumer.java
index 05cbb78..f40d552 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OverviewWithoutFocusInputConsumer.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OverviewWithoutFocusInputConsumer.java
@@ -22,9 +22,9 @@
 
 import static com.android.launcher3.Utilities.squaredHypot;
 import static com.android.quickstep.TouchInteractionService.TOUCH_INTERACTION_LOG;
-import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
 
 import android.content.Context;
+import android.content.Intent;
 import android.graphics.PointF;
 import android.view.MotionEvent;
 import android.view.VelocityTracker;
@@ -34,12 +34,9 @@
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.logging.StatsLogUtils;
-import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
-import com.android.quickstep.OverviewCallbacks;
 import com.android.quickstep.util.NavBarPosition;
-import com.android.systemui.shared.system.ActivityManagerWrapper;
 import com.android.systemui.shared.system.InputMonitorCompat;
 
 public class OverviewWithoutFocusInputConsumer implements InputConsumer {
@@ -148,9 +145,9 @@
         }
 
         if (triggerQuickstep) {
-            OverviewCallbacks.get(mContext).closeAllWindows();
-            ActivityManagerWrapper.getInstance()
-                    .closeSystemWindows(CLOSE_SYSTEM_WINDOWS_REASON_RECENTS);
+            mContext.startActivity(new Intent(Intent.ACTION_MAIN)
+                    .addCategory(Intent.CATEGORY_HOME)
+                    .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
             TOUCH_INTERACTION_LOG.addLog("startQuickstep");
             BaseActivity activity = BaseDraggingActivity.fromContext(mContext);
             int pageIndex = -1; // This number doesn't reflect workspace page index.
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/logging/UserEventDispatcherAppPredictionExtension.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/logging/UserEventDispatcherAppPredictionExtension.java
new file mode 100644
index 0000000..b251f9e
--- /dev/null
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/logging/UserEventDispatcherAppPredictionExtension.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.logging;
+
+import android.content.Context;
+
+import androidx.annotation.NonNull;
+
+import com.android.launcher3.ItemInfo;
+import com.android.launcher3.appprediction.PredictionUiStateManager;
+import com.android.launcher3.userevent.nano.LauncherLogProto;
+
+/**
+ * This class handles AOSP MetricsLogger function calls and logging around
+ * quickstep interactions and app launches.
+ */
+@SuppressWarnings("unused")
+public class UserEventDispatcherAppPredictionExtension extends UserEventDispatcherExtension {
+
+    public static final int ALL_APPS_PREDICTION_TIPS = 2;
+
+    private static final String TAG = "UserEventDispatcher";
+
+    public UserEventDispatcherAppPredictionExtension(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected void onFillInLogContainerData(
+            @NonNull ItemInfo itemInfo, @NonNull LauncherLogProto.Target target,
+            @NonNull LauncherLogProto.Target targetParent) {
+        PredictionUiStateManager.fillInPredictedRank(itemInfo, target);
+    }
+}
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/ClipAnimationHelper.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/ClipAnimationHelper.java
index cae273a..cb83b9a 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/ClipAnimationHelper.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/ClipAnimationHelper.java
@@ -37,6 +37,7 @@
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.views.BaseDragLayer;
 import com.android.quickstep.RecentsModel;
 import com.android.quickstep.views.RecentsView;
@@ -50,8 +51,6 @@
 import com.android.systemui.shared.system.TransactionCompat;
 import com.android.systemui.shared.system.WindowManagerWrapper;
 
-import java.util.function.BiFunction;
-
 /**
  * Utility class to handle window clip animation
  */
@@ -213,6 +212,11 @@
                         }
                         mCurrentCornerRadius = cornerRadius;
                     }
+                    // Fade out Assistant overlay.
+                    if (app.activityType == RemoteAnimationTargetCompat.ACTIVITY_TYPE_ASSISTANT
+                            && app.isNotInRecents) {
+                        alpha = 1 - Interpolators.DEACCEL_2_5.getInterpolation(progress);
+                    }
                 } else if (targetSet.hasRecents) {
                     // If home has a different target then recents, reverse anim the
                     // home target.
@@ -398,6 +402,10 @@
             return this;
         }
 
+        public float getProgress() {
+            return progress;
+        }
+
         public TransformParams setCornerRadius(float cornerRadius) {
             this.cornerRadius = cornerRadius;
             return this;
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/NavBarPosition.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/NavBarPosition.java
index 3ce341d..bbb318a 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/NavBarPosition.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/NavBarPosition.java
@@ -21,9 +21,9 @@
 
 import android.content.Context;
 import android.view.Surface;
-import android.view.WindowManager;
 
 import com.android.launcher3.graphics.RotationMode;
+import com.android.launcher3.util.DefaultDisplay;
 import com.android.quickstep.SysUINavigationMode;
 
 /**
@@ -36,8 +36,7 @@
 
     public NavBarPosition(Context context) {
         mMode = SysUINavigationMode.getMode(context);
-        mDisplayRotation = context.getSystemService(WindowManager.class)
-                .getDefaultDisplay().getRotation();
+        mDisplayRotation = DefaultDisplay.INSTANCE.get(context).getInfo().rotation;
     }
 
     public boolean isRightEdge() {
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/RecentsAnimationListenerSet.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/RecentsAnimationListenerSet.java
index 14083dd..b1999d7 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/RecentsAnimationListenerSet.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/RecentsAnimationListenerSet.java
@@ -15,11 +15,13 @@
  */
 package com.android.quickstep.util;
 
-import static com.android.quickstep.TouchInteractionService.MAIN_THREAD_EXECUTOR;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 
 import android.graphics.Rect;
 import android.util.ArraySet;
 
+import androidx.annotation.UiThread;
+
 import com.android.launcher3.Utilities;
 import com.android.launcher3.util.Preconditions;
 import com.android.quickstep.util.SwipeAnimationTargetSet.SwipeAnimationListener;
@@ -31,8 +33,6 @@
 import java.util.Set;
 import java.util.function.Consumer;
 
-import androidx.annotation.UiThread;
-
 /**
  * Wrapper around {@link RecentsAnimationListener} which delegates callbacks to multiple listeners
  * on the main thread
@@ -82,7 +82,7 @@
         if (mCancelled) {
             targetSet.cancelAnimation();
         } else {
-            Utilities.postAsyncCallback(MAIN_THREAD_EXECUTOR.getHandler(), () -> {
+            Utilities.postAsyncCallback(MAIN_EXECUTOR.getHandler(), () -> {
                 for (SwipeAnimationListener listener : getListeners()) {
                     listener.onRecentsAnimationStart(targetSet);
                 }
@@ -92,14 +92,14 @@
 
     @Override
     public final void onAnimationCanceled(ThumbnailData thumbnailData) {
-        Utilities.postAsyncCallback(MAIN_THREAD_EXECUTOR.getHandler(), () -> {
+        Utilities.postAsyncCallback(MAIN_EXECUTOR.getHandler(), () -> {
             for (SwipeAnimationListener listener : getListeners()) {
                 listener.onRecentsAnimationCanceled();
             }
         });
         // TODO: handle the transition better instead of simply using a transition delay.
         if (thumbnailData != null) {
-            MAIN_THREAD_EXECUTOR.getHandler().postDelayed(() -> mController.cleanupScreenshot(),
+            MAIN_EXECUTOR.getHandler().postDelayed(() -> mController.cleanupScreenshot(),
                     TRANSITION_DELAY);
         }
     }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/ShelfPeekAnim.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/ShelfPeekAnim.java
new file mode 100644
index 0000000..83bc416
--- /dev/null
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/ShelfPeekAnim.java
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.util;
+
+import static com.android.launcher3.LauncherAppTransitionManagerImpl.INDEX_SHELF_ANIM;
+import static com.android.launcher3.LauncherState.BACKGROUND_APP;
+import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.view.animation.Interpolator;
+
+import com.android.launcher3.Launcher;
+import com.android.launcher3.uioverrides.states.OverviewState;
+
+/**
+ * Animates the shelf between states HIDE, PEEK, and OVERVIEW.
+ */
+
+public class ShelfPeekAnim {
+
+    public static final Interpolator INTERPOLATOR = OVERSHOOT_1_2;
+    public static final long DURATION = 240;
+
+    private final Launcher mLauncher;
+
+    private ShelfAnimState mShelfState;
+    private boolean mIsPeeking;
+
+    public ShelfPeekAnim(Launcher launcher) {
+        mLauncher = launcher;
+    }
+
+    /**
+     * Animates to the given state, canceling the previous animation if it was still running.
+     */
+    public void setShelfState(ShelfAnimState shelfState, Interpolator interpolator, long duration) {
+        if (mShelfState == shelfState) {
+            return;
+        }
+        mLauncher.getStateManager().cancelStateElementAnimation(INDEX_SHELF_ANIM);
+        mShelfState = shelfState;
+        mIsPeeking = mShelfState == ShelfAnimState.PEEK || mShelfState == ShelfAnimState.HIDE;
+        if (mShelfState == ShelfAnimState.CANCEL) {
+            return;
+        }
+        float shelfHiddenProgress = BACKGROUND_APP.getVerticalProgress(mLauncher);
+        float shelfOverviewProgress = OVERVIEW.getVerticalProgress(mLauncher);
+        // Peek based on default overview progress so we can see hotseat if we're showing
+        // that instead of predictions in overview.
+        float defaultOverviewProgress = OverviewState.getDefaultVerticalProgress(mLauncher);
+        float shelfPeekingProgress = shelfHiddenProgress
+                - (shelfHiddenProgress - defaultOverviewProgress) * 0.25f;
+        float toProgress = mShelfState == ShelfAnimState.HIDE
+                ? shelfHiddenProgress
+                : mShelfState == ShelfAnimState.PEEK
+                        ? shelfPeekingProgress
+                        : shelfOverviewProgress;
+        Animator shelfAnim = mLauncher.getStateManager()
+                .createStateElementAnimation(INDEX_SHELF_ANIM, toProgress);
+        shelfAnim.setInterpolator(interpolator);
+        shelfAnim.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationCancel(Animator animation) {
+                mShelfState = ShelfAnimState.CANCEL;
+            }
+
+            @Override
+            public void onAnimationEnd(Animator animator) {
+                mIsPeeking = mShelfState == ShelfAnimState.PEEK;
+            }
+        });
+        shelfAnim.setDuration(duration).start();
+    }
+
+    /** @return Whether the shelf is currently peeking or animating to or from peeking. */
+    public boolean isPeeking() {
+        return mIsPeeking;
+    }
+
+    /** The various shelf states we can animate to. */
+    public enum ShelfAnimState {
+        HIDE(true), PEEK(true), OVERVIEW(false), CANCEL(false);
+
+        ShelfAnimState(boolean shouldPreformHaptic) {
+            this.shouldPreformHaptic = shouldPreformHaptic;
+        }
+
+        public final boolean shouldPreformHaptic;
+    }
+}
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/StaggeredWorkspaceAnim.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/StaggeredWorkspaceAnim.java
index 1aa5365..958ef7d 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/StaggeredWorkspaceAnim.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/StaggeredWorkspaceAnim.java
@@ -18,6 +18,7 @@
 import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_Y;
 import static com.android.launcher3.LauncherState.BACKGROUND_APP;
 import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.LauncherStateManager.ANIM_ALL;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 
 import android.animation.Animator;
@@ -27,13 +28,11 @@
 import android.view.View;
 import android.view.ViewGroup;
 
-import androidx.annotation.Nullable;
-
-import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.CellLayout;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
+import com.android.launcher3.LauncherStateManager;
 import com.android.launcher3.LauncherStateManager.AnimationConfig;
 import com.android.launcher3.R;
 import com.android.launcher3.ShortcutAndWidgetContainer;
@@ -41,9 +40,8 @@
 import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.PropertySetter;
 import com.android.launcher3.anim.SpringObjectAnimator;
-import com.android.launcher3.folder.FolderIcon;
 import com.android.launcher3.graphics.OverviewScrim;
-import com.android.launcher3.views.IconLabelDotView;
+import com.android.quickstep.views.RecentsView;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -66,18 +64,12 @@
     private final float mVelocity;
     private final float mSpringTransY;
 
-    // The original view of the {@link FloatingIconView}.
-    private final View mOriginalView;
-
     private final List<Animator> mAnimators = new ArrayList<>();
 
-    /**
-     * @param floatingViewOriginalView The FloatingIconView's original view.
-     */
-    public StaggeredWorkspaceAnim(Launcher launcher, @Nullable View floatingViewOriginalView,
-            float velocity) {
+    public StaggeredWorkspaceAnim(Launcher launcher, float velocity, boolean animateOverviewScrim) {
+        prepareToAnimate(launcher);
+
         mVelocity = velocity;
-        mOriginalView = floatingViewOriginalView;
 
         // Scale the translationY based on the initial velocity to better sync the workspace items
         // with the floating view.
@@ -133,8 +125,10 @@
             addStaggeredAnimationForView(qsb, grid.inv.numRows + 2, totalRows);
         }
 
-        addScrimAnimationForState(launcher, BACKGROUND_APP, 0);
-        addScrimAnimationForState(launcher, NORMAL, ALPHA_DURATION_MS);
+        if (animateOverviewScrim) {
+            addScrimAnimationForState(launcher, BACKGROUND_APP, 0);
+            addScrimAnimationForState(launcher, NORMAL, ALPHA_DURATION_MS);
+        }
 
         AnimatorListener resetClipListener = new AnimatorListenerAdapter() {
             int numAnimations = mAnimators.size();
@@ -161,6 +155,21 @@
     }
 
     /**
+     * Setup workspace with 0 duration to prepare for our staggered animation.
+     */
+    private void prepareToAnimate(Launcher launcher) {
+        LauncherStateManager stateManager = launcher.getStateManager();
+        AnimatorSetBuilder builder = new AnimatorSetBuilder();
+        // setRecentsAttachedToAppWindow() will animate recents out.
+        builder.addFlag(AnimatorSetBuilder.FLAG_DONT_ANIMATE_OVERVIEW);
+        stateManager.createAtomicAnimation(BACKGROUND_APP, NORMAL, builder, ANIM_ALL, 0);
+        builder.build().start();
+
+        // Stop scrolling so that it doesn't interfere with the translation offscreen.
+        launcher.<RecentsView>getOverviewPanel().getScroller().forceFinished(true);
+    }
+
+    /**
      * Starts the animation.
      */
     public void start() {
@@ -192,35 +201,12 @@
         springTransY.setStartDelay(startDelay);
         mAnimators.add(springTransY);
 
-        ObjectAnimator alpha = getAlphaAnimator(v, startDelay);
-        if (v == mOriginalView) {
-            // For IconLabelDotViews, we just want the label to fade in.
-            // Icon, badge, and dots will animate in separately (controlled via FloatingIconView)
-            if (v instanceof IconLabelDotView) {
-                alpha.addListener(new AnimatorListenerAdapter() {
-                    @Override
-                    public void onAnimationStart(Animator animation) {
-                        IconLabelDotView view = (IconLabelDotView) v;
-                        view.setIconVisible(false);
-                        view.setForceHideDot(true);
-                    }
-                });
-            } else {
-                return;
-            }
-        }
-
         v.setAlpha(0);
-        mAnimators.add(alpha);
-    }
-
-    private ObjectAnimator getAlphaAnimator(View v, long startDelay) {
         ObjectAnimator alpha = ObjectAnimator.ofFloat(v, View.ALPHA, 0f, 1f);
         alpha.setInterpolator(LINEAR);
         alpha.setDuration(ALPHA_DURATION_MS);
         alpha.setStartDelay(startDelay);
-        return alpha;
-
+        mAnimators.add(alpha);
     }
 
     private void addScrimAnimationForState(Launcher launcher, LauncherState state, long duration) {
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/SwipeAnimationTargetSet.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/SwipeAnimationTargetSet.java
index 381c27a..3619d3a 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/SwipeAnimationTargetSet.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/SwipeAnimationTargetSet.java
@@ -15,8 +15,8 @@
  */
 package com.android.quickstep.util;
 
-import static com.android.quickstep.TouchInteractionService.BACKGROUND_EXECUTOR;
-import static com.android.quickstep.TouchInteractionService.MAIN_THREAD_EXECUTOR;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_CLOSING;
 
 import android.graphics.Rect;
@@ -68,25 +68,25 @@
 
     public void finishController(boolean toRecents, Runnable callback, boolean sendUserLeaveHint) {
         mOnFinishListener.accept(this);
-        BACKGROUND_EXECUTOR.execute(() -> {
+        UI_HELPER_EXECUTOR.execute(() -> {
             controller.setInputConsumerEnabled(false);
             controller.finish(toRecents, sendUserLeaveHint);
 
             if (callback != null) {
-                MAIN_THREAD_EXECUTOR.execute(callback);
+                MAIN_EXECUTOR.execute(callback);
             }
         });
     }
 
     public void enableInputConsumer() {
-        BACKGROUND_EXECUTOR.submit(() -> {
+        UI_HELPER_EXECUTOR.submit(() -> {
             controller.hideCurrentInputMethod();
             controller.setInputConsumerEnabled(true);
         });
     }
 
     public void setWindowThresholdCrossed(boolean thresholdCrossed) {
-        BACKGROUND_EXECUTOR.execute(() -> {
+        UI_HELPER_EXECUTOR.execute(() -> {
             controller.setAnimationTargetsBehindSystemBars(!thresholdCrossed);
             if (mShouldMinimizeSplitScreen && thresholdCrossed) {
                 // NOTE: As a workaround for conflicting animations (Launcher animating the task
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/DigitalWellBeingToast.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/DigitalWellBeingToast.java
index 7fac813..b06d4bc 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/DigitalWellBeingToast.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/DigitalWellBeingToast.java
@@ -19,6 +19,7 @@
 import static android.provider.Settings.ACTION_APP_USAGE_SETTINGS;
 
 import static com.android.launcher3.Utilities.prefixTextWithIcon;
+import static com.android.launcher3.util.Executors.THREAD_POOL_EXECUTOR;
 
 import android.annotation.TargetApi;
 import android.app.ActivityOptions;
@@ -41,7 +42,6 @@
 import com.android.launcher3.BaseActivity;
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.systemui.shared.recents.model.Task;
 
@@ -117,7 +117,7 @@
             return;
         }
 
-        Utilities.THREAD_POOL_EXECUTOR.execute(() -> {
+        THREAD_POOL_EXECUTOR.execute(() -> {
             final AppUsageLimit usageLimit = mLauncherApps.getAppUsageLimit(
                     task.getTopComponent().getPackageName(),
                     UserHandle.of(task.key.userId));
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
index 03441c8..c2cb720 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
@@ -35,6 +35,7 @@
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
+import android.widget.FrameLayout;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Hotseat;
@@ -45,11 +46,14 @@
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.appprediction.PredictionUiStateManager;
 import com.android.launcher3.appprediction.PredictionUiStateManager.Client;
+import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
 import com.android.launcher3.views.ScrimView;
 import com.android.quickstep.SysUINavigationMode;
 import com.android.quickstep.util.ClipAnimationHelper;
 import com.android.quickstep.util.ClipAnimationHelper.TransformParams;
 import com.android.quickstep.util.LayoutUtils;
+import com.android.systemui.plugins.PluginListener;
+import com.android.systemui.plugins.RecentsExtraCard;
 
 /**
  * {@link RecentsView} used in Launcher activity
@@ -57,8 +61,29 @@
 @TargetApi(Build.VERSION_CODES.O)
 public class LauncherRecentsView extends RecentsView<Launcher> implements StateListener {
 
+    private static final Rect sTempRect = new Rect();
+
     private final TransformParams mTransformParams = new TransformParams();
 
+    private RecentsExtraCard mRecentsExtraCardPlugin;
+    private RecentsExtraViewContainer mRecentsExtraViewContainer;
+    private PluginListener<RecentsExtraCard> mRecentsExtraCardPluginListener =
+            new PluginListener<RecentsExtraCard>() {
+        @Override
+        public void onPluginConnected(RecentsExtraCard recentsExtraCard, Context context) {
+            createRecentsExtraCard();
+            mRecentsExtraCardPlugin = recentsExtraCard;
+            mRecentsExtraCardPlugin.setupView(context, mRecentsExtraViewContainer, mActivity);
+        }
+
+        @Override
+        public void onPluginDisconnected(RecentsExtraCard plugin) {
+            removeView(mRecentsExtraViewContainer);
+            mRecentsExtraCardPlugin = null;
+            mRecentsExtraViewContainer = null;
+        }
+    };
+
     public LauncherRecentsView(Context context) {
         this(context, null);
     }
@@ -144,6 +169,25 @@
         LayoutUtils.calculateLauncherTaskSize(getContext(), dp, outRect);
     }
 
+    /**
+     * @return The translationX to apply to this view so that the first task is just offscreen.
+     */
+    public float getOffscreenTranslationX(float recentsScale) {
+        float offscreenX = NORMAL.getOverviewScaleAndTranslation(mActivity).translationX;
+        // Offset since scale pushes tasks outwards.
+        getTaskSize(sTempRect);
+        int taskWidth = sTempRect.width();
+        offscreenX += taskWidth * (recentsScale - 1) / 2;
+        if (mRunningTaskTileHidden) {
+            // The first task is hidden, so offset by its width.
+            offscreenX -= (taskWidth + getPageSpacing()) * recentsScale;
+        }
+        if (isRtl()) {
+            offscreenX = -offscreenX;
+        }
+        return offscreenX;
+    }
+
     @Override
     protected void onTaskLaunchAnimationUpdate(float progress, TaskView tv) {
         if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
@@ -264,4 +308,66 @@
         }
         return super.shouldStealTouchFromSiblingsBelow(ev);
     }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        PluginManagerWrapper.INSTANCE.get(getContext())
+                .addPluginListener(mRecentsExtraCardPluginListener, RecentsExtraCard.class);
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        PluginManagerWrapper.INSTANCE.get(getContext()).removePluginListener(
+                mRecentsExtraCardPluginListener);
+    }
+
+    @Override
+    protected int computeMinScrollX() {
+        if (canComputeScrollX() && !mIsRtl) {
+            return computeScrollX();
+        }
+        return super.computeMinScrollX();
+    }
+
+    @Override
+    protected int computeMaxScrollX() {
+        if (canComputeScrollX() && mIsRtl) {
+            return computeScrollX();
+        }
+        return super.computeMaxScrollX();
+    }
+
+    private boolean canComputeScrollX() {
+        return mRecentsExtraCardPlugin != null && getTaskViewCount() > 0
+                && !mDisallowScrollToClearAll;
+    }
+
+    private int computeScrollX() {
+        int scrollIndex = getTaskViewStartIndex() - 1;
+        while (scrollIndex >= 0 && getChildAt(scrollIndex) instanceof RecentsExtraViewContainer
+                && ((RecentsExtraViewContainer) getChildAt(scrollIndex)).isScrollable()) {
+            scrollIndex--;
+        }
+        return getScrollForPage(scrollIndex + 1);
+    }
+
+    private void createRecentsExtraCard() {
+        mRecentsExtraViewContainer = new RecentsExtraViewContainer(getContext());
+        FrameLayout.LayoutParams helpCardParams =
+                new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,
+                        FrameLayout.LayoutParams.MATCH_PARENT);
+        mRecentsExtraViewContainer.setLayoutParams(helpCardParams);
+        mRecentsExtraViewContainer.setScrollable(true);
+        addView(mRecentsExtraViewContainer, 0);
+    }
+
+    @Override
+    public void resetTaskVisuals() {
+        super.resetTaskVisuals();
+        if (mRecentsExtraViewContainer != null) {
+            mRecentsExtraViewContainer.setAlpha(mContentAlpha);
+        }
+    }
 }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsExtraViewContainer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsExtraViewContainer.java
new file mode 100644
index 0000000..1ea6d4a
--- /dev/null
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsExtraViewContainer.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.quickstep.views;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.widget.FrameLayout;
+
+/**
+ * Empty view to house recents overview extra card
+ */
+public class RecentsExtraViewContainer extends FrameLayout implements RecentsView.PageCallbacks {
+
+    private boolean mScrollable = false;
+
+    public RecentsExtraViewContainer(Context context) {
+        super(context);
+    }
+
+    public RecentsExtraViewContainer(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public RecentsExtraViewContainer(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    /**
+     * Determine whether the view should be scrolled to in the recents overview, similar to the
+     * taskviews.
+     * @return true if viewed should be scrolled to, false if not
+     */
+    public boolean isScrollable() {
+        return mScrollable;
+    }
+
+    public void setScrollable(boolean scrollable) {
+        this.mScrollable = scrollable;
+    }
+}
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
index d98ef42..6ad3cc6 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
@@ -35,9 +35,9 @@
 import static com.android.launcher3.uioverrides.touchcontrollers.TaskViewTouchController.SUCCESS_TRANSITION_PROGRESS;
 import static com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch.TAP;
 import static com.android.launcher3.userevent.nano.LauncherLogProto.ControlType.CLEAR_ALL_BUTTON;
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 import static com.android.launcher3.util.SystemUiController.UI_STATE_OVERVIEW;
 import static com.android.quickstep.TaskUtils.checkCurrentOrManagedUserId;
-import static com.android.quickstep.TouchInteractionService.BACKGROUND_EXECUTOR;
 
 import android.animation.Animator;
 import android.animation.AnimatorSet;
@@ -187,7 +187,7 @@
     private final ViewPool<TaskView> mTaskViewPool;
 
     private boolean mDwbToastShown;
-    private boolean mDisallowScrollToClearAll;
+    protected boolean mDisallowScrollToClearAll;
     private boolean mOverlayEnabled;
     private boolean mFreezeViewVisibility;
 
@@ -228,7 +228,7 @@
                 return;
             }
 
-            BACKGROUND_EXECUTOR.execute(() -> {
+            UI_HELPER_EXECUTOR.execute(() -> {
                 TaskView taskView = getTaskView(taskId);
                 if (taskView == null) {
                     return;
@@ -272,7 +272,7 @@
 
     // Only valid until the launcher state changes to NORMAL
     protected int mRunningTaskId = -1;
-    private boolean mRunningTaskTileHidden;
+    protected boolean mRunningTaskTileHidden;
     private Task mTmpRunningTask;
 
     private boolean mRunningTaskIconScaledDown = false;
@@ -289,7 +289,7 @@
     private LayoutTransition mLayoutTransition;
 
     @ViewDebug.ExportedProperty(category = "launcher")
-    private float mContentAlpha = 1;
+    protected float mContentAlpha = 1;
     @ViewDebug.ExportedProperty(category = "launcher")
     protected float mFullscreenProgress = 0;
 
@@ -306,6 +306,9 @@
     private Layout mEmptyTextLayout;
     private LiveTileOverlay mLiveTileOverlay;
 
+    // Keeps track of the index where the first TaskView should be
+    private int mTaskViewStartIndex = 0;
+
     private BaseActivity.MultiWindowModeChangedListener mMultiWindowModeChangedListener =
             (inMultiWindowMode) -> {
         if (!inMultiWindowMode && mOverviewStateEnabled) {
@@ -329,7 +332,6 @@
         mClearAllButton = (ClearAllButton) LayoutInflater.from(context)
                 .inflate(R.layout.overview_clear_all_button, this, false);
         mClearAllButton.setOnClickListener(this::dismissAllTasks);
-
         mTaskViewPool = new ViewPool<>(context, this, R.layout.task, 20 /* max size */,
                 10 /* initial size */);
 
@@ -430,7 +432,7 @@
         super.onViewRemoved(child);
 
         // Clear the task data for the removed child if it was visible
-        if (child != mClearAllButton) {
+        if (child instanceof TaskView) {
             TaskView taskView = (TaskView) child;
             mHasVisibleTaskData.delete(taskView.getTask().key.id);
             mTaskViewPool.recycle(taskView);
@@ -444,7 +446,7 @@
 
     public TaskView getTaskView(int taskId) {
         for (int i = 0; i < getTaskViewCount(); i++) {
-            TaskView tv = (TaskView) getChildAt(i);
+            TaskView tv = getTaskViewAt(i);
             if (tv.getTask() != null && tv.getTask().key != null && tv.getTask().key.id == taskId) {
                 return tv;
             }
@@ -536,28 +538,26 @@
         }
 
         if (tasks == null || tasks.isEmpty()) {
-            removeAllViews();
+            removeTasksViewsAndClearAllButton();
             onTaskStackUpdated();
             return;
         }
 
-        int oldChildCount = getChildCount();
-
         // Unload existing visible task data
         unloadVisibleTaskData();
 
-        TaskView ignoreRestTaskView =
+        TaskView ignoreResetTaskView =
                 mIgnoreResetTaskId == -1 ? null : getTaskView(mIgnoreResetTaskId);
 
         final int requiredTaskCount = tasks.size();
         if (getTaskViewCount() != requiredTaskCount) {
-            if (oldChildCount > 0) {
+            if (indexOfChild(mClearAllButton) != -1) {
                 removeView(mClearAllButton);
             }
-            for (int i = getChildCount(); i < requiredTaskCount; i++) {
+            for (int i = getTaskViewCount(); i < requiredTaskCount; i++) {
                 addView(mTaskViewPool.getView());
             }
-            while (getChildCount() > requiredTaskCount) {
+            while (getTaskViewCount() > requiredTaskCount) {
                 removeView(getChildAt(getChildCount() - 1));
             }
             if (requiredTaskCount > 0) {
@@ -567,17 +567,23 @@
 
         // Rebind and reset all task views
         for (int i = requiredTaskCount - 1; i >= 0; i--) {
-            final int pageIndex = requiredTaskCount - i - 1;
+            final int pageIndex = requiredTaskCount - i - 1 + mTaskViewStartIndex;
             final Task task = tasks.get(i);
             final TaskView taskView = (TaskView) getChildAt(pageIndex);
             taskView.bind(task);
         }
-        TaskView runningTaskView = getRunningTaskView();
-        if (runningTaskView != null) {
-            setCurrentPage(indexOfChild(runningTaskView));
+
+        if (mNextPage == INVALID_PAGE) {
+            // Set the current page to the running task, but not if settling on new task.
+            TaskView runningTaskView = getRunningTaskView();
+            if (runningTaskView != null) {
+                setCurrentPage(indexOfChild(runningTaskView));
+            } else if (getTaskViewCount() > 0) {
+                setCurrentPage(indexOfChild(getTaskViewAt(0)));
+            }
         }
 
-        if (mIgnoreResetTaskId != -1 && getTaskView(mIgnoreResetTaskId) != ignoreRestTaskView) {
+        if (mIgnoreResetTaskId != -1 && getTaskView(mIgnoreResetTaskId) != ignoreResetTaskView) {
             // If the taskView mapping is changing, do not preserve the visuals. Since we are
             // mostly preserving the first task, and new taskViews are added to the end, it should
             // generally map to the same task.
@@ -588,17 +594,28 @@
         updateEnabledOverlays();
     }
 
+    private void removeTasksViewsAndClearAllButton() {
+        for (int i = getTaskViewCount() - 1; i >= 0; i--) {
+            removeView(getTaskViewAt(i));
+        }
+        if (indexOfChild(mClearAllButton) != -1) {
+            removeView(mClearAllButton);
+        }
+    }
+
     public int getTaskViewCount() {
-        // Account for the clear all button.
-        int childCount = getChildCount();
-        return childCount == 0 ? 0 : childCount - 1;
+        int taskViewCount = getChildCount() - mTaskViewStartIndex;
+        if (indexOfChild(mClearAllButton) != -1) {
+            taskViewCount--;
+        }
+        return taskViewCount;
     }
 
     protected void onTaskStackUpdated() { }
 
     public void resetTaskVisuals() {
         for (int i = getTaskViewCount() - 1; i >= 0; i--) {
-            TaskView taskView = (TaskView) getChildAt(i);
+            TaskView taskView = getTaskViewAt(i);
             if (mIgnoreResetTaskId != taskView.getTask().key.id) {
                 taskView.resetVisualProperties();
                 taskView.setStableAlpha(mContentAlpha);
@@ -704,7 +721,7 @@
     }
 
     /**
-     * Iterates through all thet asks, and loads the associated task data for newly visible tasks,
+     * Iterates through all the tasks, and loads the associated task data for newly visible tasks,
      * and unloads the associated task data for tasks that are no longer visible.
      */
     public void loadVisibleTaskData() {
@@ -715,15 +732,16 @@
         }
 
         int centerPageIndex = getPageNearestToCenterOfScreen();
-        int numChildren = getTaskViewCount();
+        int numChildren = getChildCount();
         int lower = Math.max(0, centerPageIndex - 2);
         int upper = Math.min(centerPageIndex + 2, numChildren - 1);
 
         // Update the task data for the in/visible children
-        for (int i = 0; i < numChildren; i++) {
-            TaskView taskView = (TaskView) getChildAt(i);
+        for (int i = 0; i < getTaskViewCount(); i++) {
+            TaskView taskView = getTaskViewAt(i);
             Task task = taskView.getTask();
-            boolean visible = lower <= i && i <= upper;
+            int index = indexOfChild(taskView);
+            boolean visible = lower <= index && index <= upper;
             if (visible) {
                 if (task == mTmpRunningTask) {
                     // Skip loading if this is the task that we are animating into
@@ -798,6 +816,10 @@
         return tv == null ? -1 : indexOfChild(tv);
     }
 
+    public int getTaskViewStartIndex() {
+        return mTaskViewStartIndex;
+    }
+
     /**
      * Reloads the view if anything in recents changed.
      */
@@ -853,10 +875,10 @@
      */
     public void showCurrentTask(int runningTaskId) {
         if (getTaskView(runningTaskId) == null) {
-            boolean wasEmpty = getChildCount() == 0;
+            boolean wasEmpty = getTaskViewCount() == 0;
             // Add an empty view for now until the task plan is loaded and applied
             final TaskView taskView = mTaskViewPool.getView();
-            addView(taskView, 0);
+            addView(taskView, mTaskViewStartIndex);
             if (wasEmpty) {
                 addView(mClearAllButton);
             }
@@ -922,14 +944,13 @@
         if (runningTaskView == null) {
             // Launch the first task
             if (getTaskViewCount() > 0) {
-                getTaskViewAt(0).launchTask(true /* animate */);
+                getTaskViewAt(0).launchTask(true);
             }
         } else {
-            TaskView nextTaskView = getNextTaskView();
-            if (nextTaskView != null) {
-                nextTaskView.launchTask(true /* animate */);
+            if (getNextTaskView() != null) {
+                getNextTaskView().launchTask(true);
             } else {
-                runningTaskView.launchTask(true /* animate */);
+                runningTaskView.launchTask(true);
             }
         }
     }
@@ -1193,7 +1214,7 @@
 
         int count = getTaskViewCount();
         for (int i = 0; i < count; i++) {
-            addDismissedTaskAnimations(getChildAt(i), anim, duration);
+            addDismissedTaskAnimations(getTaskViewAt(i), anim, duration);
         }
 
         mPendingAnimation = pendingAnimation;
@@ -1201,7 +1222,7 @@
             if (onEndListener.isSuccess) {
                 // Remove all the task views now
                 ActivityManagerWrapper.getInstance().removeAllRecentTasks();
-                removeAllViews();
+                removeTasksViewsAndClearAllButton();
                 startHome();
             }
             mPendingAnimation = null;
@@ -1348,26 +1369,50 @@
         child.setAlpha(mContentAlpha);
     }
 
-    /**
-     * @return The most recent task that is older than the currently running task. If there is
-     * currently no running task or there is no task older than it, then return null.
-     */
     @Nullable
     public TaskView getNextTaskView() {
-        TaskView runningTaskView = getRunningTaskView();
-        if (runningTaskView == null) {
-            return null;
-        }
-        return getTaskViewAt(indexOfChild(runningTaskView) + 1);
+        return getTaskViewAtByAbsoluteIndex(getRunningTaskIndex() + 1);
     }
 
+    @Nullable
+    public TaskView getPreviousTaskView() {
+        return getTaskViewAtByAbsoluteIndex(getRunningTaskIndex() - 1);
+    }
+
+    @Nullable
+    public TaskView getCurrentPageTaskView() {
+        return getTaskViewAtByAbsoluteIndex(getCurrentPage());
+    }
+
+    @Nullable
+    public TaskView getNextPageTaskView() {
+        return getTaskViewAtByAbsoluteIndex(getNextPage());
+    }
+
+    @Nullable
+    public TaskView getTaskViewNearestToCenterOfScreen() {
+        return getTaskViewAtByAbsoluteIndex(getPageNearestToCenterOfScreen());
+    }
+
+    /**
+     * Returns null instead of indexOutOfBoundsError when index is not in range
+     */
+    @Nullable
     public TaskView getTaskViewAt(int index) {
-        View child = getChildAt(index);
-        return child == mClearAllButton ? null : (TaskView) child;
+        return getTaskViewAtByAbsoluteIndex(index + mTaskViewStartIndex);
+    }
+
+    @Nullable
+    private TaskView getTaskViewAtByAbsoluteIndex(int index) {
+        if (index < getChildCount() && index >= 0) {
+            View child = getChildAt(index);
+            return child instanceof TaskView ? (TaskView) child : null;
+        }
+        return null;
     }
 
     public void updateEmptyMessage() {
-        boolean isEmpty = getChildCount() == 0;
+        boolean isEmpty = getTaskViewCount() == 0;
         boolean hasSizeChanged = mLastMeasureSize.x != getWidth()
                 || mLastMeasureSize.y != getHeight();
         if (isEmpty == mShowEmptyMessage && !hasSizeChanged) {
@@ -1501,7 +1546,7 @@
             throw new IllegalStateException("Another pending animation is still running");
         }
 
-        int count = getChildCount();
+        int count = getTaskViewCount();
         if (count == 0) {
             return new PendingAnimation(new AnimatorSet());
         }
@@ -1674,18 +1719,38 @@
 
     @Override
     protected int computeMinScrollX() {
-        if (mIsRtl && mDisallowScrollToClearAll) {
-            // We aren't showing the clear all button, so use the leftmost task as the min scroll.
-            return getScrollForPage(getTaskViewCount() - 1);
+        if (getTaskViewCount() > 0) {
+            if (mDisallowScrollToClearAll) {
+                // We aren't showing the clear all button,
+                // so use the leftmost task as the min scroll.
+                if (mIsRtl) {
+                    return getScrollForPage(indexOfChild(getTaskViewAt(getTaskViewCount() - 1)));
+                }
+                return getScrollForPage(mTaskViewStartIndex);
+            }
+            if (mIsRtl) {
+                return getScrollForPage(indexOfChild(getTaskViewAt(getTaskViewCount() - 1)) + 1);
+            }
+            return getScrollForPage(mTaskViewStartIndex);
         }
         return super.computeMinScrollX();
     }
 
     @Override
     protected int computeMaxScrollX() {
-        if (!mIsRtl && mDisallowScrollToClearAll) {
-            // We aren't showing the clear all button, so use the rightmost task as the max scroll.
-            return getScrollForPage(getTaskViewCount() - 1);
+        if (getTaskViewCount() > 0) {
+            if (mDisallowScrollToClearAll) {
+                // We aren't showing the clear all button,
+                // so use the rightmost task as the min scroll.
+                if (mIsRtl) {
+                    return getScrollForPage(mTaskViewStartIndex);
+                }
+                return getScrollForPage(indexOfChild(getTaskViewAt(getTaskViewCount() - 1)));
+            }
+            if (mIsRtl) {
+                return getScrollForPage(mTaskViewStartIndex);
+            }
+            return getScrollForPage(indexOfChild(getTaskViewAt(getTaskViewCount() - 1)) + 1);
         }
         return super.computeMaxScrollX();
     }
@@ -1737,7 +1802,7 @@
         int overlayEnabledPage = mOverlayEnabled ? getNextPage() : -1;
         int taskCount = getTaskViewCount();
         for (int i = 0; i < taskCount; i++) {
-            ((TaskView) getChildAt(i)).setOverlayEnabled(i == overlayEnabledPage);
+            getTaskViewAt(i).setOverlayEnabled(i == overlayEnabledPage);
         }
     }
 
@@ -1757,4 +1822,25 @@
         final WindowInsets insets = getRootWindowInsets();
         return Math.max(insets.getSystemGestureInsets().right, insets.getSystemWindowInsetRight());
     }
+
+    @Override
+    public void addView(View child, int index) {
+        super.addView(child, index);
+        if (isExtraCardView(child, index)) {
+            mTaskViewStartIndex++;
+        }
+    }
+
+    @Override
+    public void removeView(View view) {
+        if (isExtraCardView(view, indexOfChild(view))) {
+            mTaskViewStartIndex--;
+        }
+        super.removeView(view);
+    }
+
+    private boolean isExtraCardView(View view, int index) {
+        return !(view instanceof TaskView) && !(view instanceof ClearAllButton)
+                && index <= mTaskViewStartIndex;
+    }
 }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskThumbnailView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskThumbnailView.java
index 7f1e898..044292a 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskThumbnailView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskThumbnailView.java
@@ -39,24 +39,28 @@
 import android.util.FloatProperty;
 import android.util.Property;
 import android.view.View;
+import android.view.ViewGroup;
 
 import com.android.launcher3.BaseActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
 import com.android.launcher3.util.SystemUiController;
 import com.android.launcher3.util.Themes;
 import com.android.quickstep.TaskOverlayFactory;
 import com.android.quickstep.TaskOverlayFactory.TaskOverlay;
 import com.android.quickstep.util.TaskCornerRadius;
+import com.android.systemui.plugins.OverviewScreenshotActions;
+import com.android.systemui.plugins.PluginListener;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 
 /**
  * A task in the Recents view.
  */
-public class TaskThumbnailView extends View {
+public class TaskThumbnailView extends View implements PluginListener<OverviewScreenshotActions> {
 
     private final static ColorMatrix COLOR_MATRIX = new ColorMatrix();
     private final static ColorMatrix SATURATION_COLOR_MATRIX = new ColorMatrix();
@@ -100,6 +104,7 @@
 
     private boolean mOverlayEnabled;
     private boolean mRotated;
+    private OverviewScreenshotActions mOverviewScreenshotActionsPlugin;
 
     public TaskThumbnailView(Context context) {
         this(context, null);
@@ -147,6 +152,11 @@
             mPaint.setShader(null);
             mOverlay.reset();
         }
+
+        if (mOverviewScreenshotActionsPlugin != null) {
+            mOverviewScreenshotActionsPlugin
+                .setupActions((ViewGroup) getTaskView(), getThumbnail(), mActivity);
+        }
         updateThumbnailPaintFilter();
     }
 
@@ -211,6 +221,33 @@
         canvas.restore();
     }
 
+    @Override
+    public void onPluginConnected(OverviewScreenshotActions overviewScreenshotActions,
+            Context context) {
+        mOverviewScreenshotActionsPlugin = overviewScreenshotActions;
+        mOverviewScreenshotActionsPlugin.setupActions(getTaskView(), getThumbnail(), mActivity);
+    }
+
+    @Override
+    public void onPluginDisconnected(OverviewScreenshotActions plugin) {
+        if (mOverviewScreenshotActionsPlugin != null) {
+            mOverviewScreenshotActionsPlugin = null;
+        }
+    }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        PluginManagerWrapper.INSTANCE.get(getContext())
+            .addPluginListener(this, OverviewScreenshotActions.class);
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        PluginManagerWrapper.INSTANCE.get(getContext()).removePluginListener(this);
+    }
+
     public RectF getInsetsToDrawInFullscreen(boolean isMultiWindowMode) {
         // Don't show insets in multi window mode.
         return isMultiWindowMode ? EMPTY_RECT_F : mClippedInsets;
diff --git a/quickstep/res/values-de/strings.xml b/quickstep/res/values-de/strings.xml
index 8df09ff..0a6118b 100644
--- a/quickstep/res/values-de/strings.xml
+++ b/quickstep/res/values-de/strings.xml
@@ -20,7 +20,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="recent_task_option_split_screen" msgid="5353188922202653570">"Splitscreen"</string>
-    <string name="recent_task_option_pin" msgid="7929860679018978258">"Fixieren"</string>
+    <string name="recent_task_option_pin" msgid="7929860679018978258">"Anpinnen"</string>
     <string name="recent_task_option_freeform" msgid="48863056265284071">"Freeform-Modus"</string>
     <string name="accessibility_desc_recent_apps" msgid="1444379410873162882">"Übersicht"</string>
     <string name="recents_empty_message" msgid="7040467240571714191">"Keine kürzlich verwendeten Elemente"</string>
diff --git a/quickstep/res/values-ne/strings.xml b/quickstep/res/values-ne/strings.xml
index c47f951..ae23a09 100644
--- a/quickstep/res/values-ne/strings.xml
+++ b/quickstep/res/values-ne/strings.xml
@@ -25,7 +25,7 @@
     <string name="accessibility_desc_recent_apps" msgid="1444379410873162882">"परिदृश्य"</string>
     <string name="recents_empty_message" msgid="7040467240571714191">"हालसालैको कुनै पनि वस्तु छैन"</string>
     <string name="accessibility_close_task" msgid="5354563209433803643">"बन्द गर्नुहोस्"</string>
-    <string name="accessibility_app_usage_settings" msgid="6312864233673544149">"एपको उपयोगका सेटिङहरू"</string>
+    <string name="accessibility_app_usage_settings" msgid="6312864233673544149">"अनुप्रयोगको उपयोगका सेटिङहरू"</string>
     <string name="recents_clear_all" msgid="5328176793634888831">"सबै खाली गर्नुहोस्"</string>
     <string name="accessibility_recent_apps" msgid="4058661986695117371">"हालसालैका एपहरू"</string>
     <string name="task_contents_description_with_remaining_time" msgid="4479688746574672685">"<xliff:g id="TASK_DESCRIPTION">%1$s</xliff:g>, <xliff:g id="REMAINING_TIME">%2$s</xliff:g>"</string>
diff --git a/quickstep/res/values-ru/strings.xml b/quickstep/res/values-ru/strings.xml
index 34fbe0f..5dd89a6 100644
--- a/quickstep/res/values-ru/strings.xml
+++ b/quickstep/res/values-ru/strings.xml
@@ -20,7 +20,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="recent_task_option_split_screen" msgid="5353188922202653570">"Разделить экран"</string>
-    <string name="recent_task_option_pin" msgid="7929860679018978258">"Закрепить"</string>
+    <string name="recent_task_option_pin" msgid="7929860679018978258">"Блокировать"</string>
     <string name="recent_task_option_freeform" msgid="48863056265284071">"Произвольная форма"</string>
     <string name="accessibility_desc_recent_apps" msgid="1444379410873162882">"Обзор"</string>
     <string name="recents_empty_message" msgid="7040467240571714191">"Здесь пока ничего нет."</string>
diff --git a/quickstep/res/values/config.xml b/quickstep/res/values/config.xml
index 5c4d6d8..292eaaa 100644
--- a/quickstep/res/values/config.xml
+++ b/quickstep/res/values/config.xml
@@ -21,8 +21,6 @@
     <!-- Activity which blocks home gesture -->
     <string name="gesture_blocking_activity" translatable="false"></string>
 
-    <string name="user_event_dispatcher_class" translatable="false">com.android.quickstep.logging.UserEventDispatcherExtension</string>
-
     <string name="stats_log_manager_class" translatable="false">com.android.quickstep.logging.StatsLogCompatManager</string>
 
     <string name="test_information_handler_class" translatable="false">com.android.quickstep.QuickstepTestInformationHandler</string>
diff --git a/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java b/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
index 991408c..a91410c 100644
--- a/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
+++ b/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
@@ -57,6 +57,9 @@
 import android.util.Pair;
 import android.view.View;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.DeviceProfile.OnDeviceProfileChangeListener;
 import com.android.launcher3.allapps.AllAppsTransitionController;
 import com.android.launcher3.anim.Interpolators;
@@ -69,6 +72,7 @@
 import com.android.quickstep.util.MultiValueUpdateListener;
 import com.android.quickstep.util.RemoteAnimationProvider;
 import com.android.quickstep.util.RemoteAnimationTargetSet;
+import com.android.quickstep.util.ShelfPeekAnim;
 import com.android.systemui.shared.system.ActivityCompat;
 import com.android.systemui.shared.system.ActivityOptionsCompat;
 import com.android.systemui.shared.system.QuickStepContract;
@@ -80,9 +84,6 @@
 import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 import com.android.systemui.shared.system.WindowManagerWrapper;
 
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-
 /**
  * {@link LauncherAppTransitionManager} with Quickstep-specific app transitions for launching from
  * home and/or all-apps.
@@ -150,6 +151,8 @@
 
     private RemoteAnimationProvider mRemoteAnimationProvider;
 
+    private final ShelfPeekAnim mShelfPeekAnim;
+
     private final AnimatorListenerAdapter mForceInvisibleListener = new AnimatorListenerAdapter() {
         @Override
         public void onAnimationStart(Animator animation) {
@@ -177,6 +180,12 @@
 
         mLauncher.addOnDeviceProfileChangeListener(this);
         registerRemoteAnimations();
+
+        mShelfPeekAnim = new ShelfPeekAnim(mLauncher);
+    }
+
+    public ShelfPeekAnim getShelfPeekAnim() {
+        return mShelfPeekAnim;
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java b/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java
index c02df93..0790cf6 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java
@@ -28,6 +28,7 @@
 import static com.android.launcher3.allapps.DiscoveryBounce.HOME_BOUNCE_SEEN;
 import static com.android.launcher3.allapps.DiscoveryBounce.SHELF_BOUNCE_COUNT;
 import static com.android.launcher3.allapps.DiscoveryBounce.SHELF_BOUNCE_SEEN;
+import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
 
 import android.animation.AnimatorSet;
 import android.animation.ValueAnimator;
@@ -58,6 +59,7 @@
 import com.android.quickstep.SysUINavigationMode.NavigationModeChangeListener;
 import com.android.quickstep.util.RemoteFadeOutAnimationListener;
 import com.android.systemui.shared.system.ActivityCompat;
+import com.android.systemui.shared.system.ActivityManagerWrapper;
 
 import java.io.ByteArrayOutputStream;
 import java.io.PrintWriter;
@@ -251,4 +253,10 @@
         Person[] persons = si.getPersons();
         return persons == null ? Utilities.EMPTY_PERSON_ARRAY : persons;
     }
+
+    /** Closes system windows. */
+    public static void closeSystemWindows() {
+        ActivityManagerWrapper.getInstance()
+            .closeSystemWindows(CLOSE_SYSTEM_WINDOWS_REASON_RECENTS);
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginInitializerImpl.java b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginInitializerImpl.java
index 910fa0d..7beb9db 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginInitializerImpl.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginInitializerImpl.java
@@ -14,16 +14,17 @@
 
 package com.android.launcher3.uioverrides.plugins;
 
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+
 import android.content.Context;
 import android.os.Looper;
 
-import com.android.launcher3.LauncherModel;
 import com.android.systemui.shared.plugins.PluginInitializer;
 
 public class PluginInitializerImpl implements PluginInitializer {
     @Override
     public Looper getBgLooper() {
-        return LauncherModel.getWorkerLooper();
+        return MODEL_EXECUTOR.getLooper();
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/LandscapeEdgeSwipeController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/LandscapeEdgeSwipeController.java
index bb72315..39b0f8d 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/LandscapeEdgeSwipeController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/LandscapeEdgeSwipeController.java
@@ -11,7 +11,7 @@
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.LauncherStateManager.AnimationComponents;
 import com.android.launcher3.touch.AbstractStateChangeTouchController;
-import com.android.launcher3.touch.SwipeDetector;
+import com.android.launcher3.touch.SingleAxisSwipeDetector;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
 import com.android.quickstep.RecentsModel;
@@ -24,7 +24,7 @@
     private static final String TAG = "LandscapeEdgeSwipeCtrl";
 
     public LandscapeEdgeSwipeController(Launcher l) {
-        super(l, SwipeDetector.HORIZONTAL);
+        super(l, SingleAxisSwipeDetector.HORIZONTAL);
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java
index b81edfa..db6a40f 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java
@@ -43,7 +43,7 @@
 import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.touch.AbstractStateChangeTouchController;
-import com.android.launcher3.touch.SwipeDetector;
+import com.android.launcher3.touch.SingleAxisSwipeDetector;
 import com.android.launcher3.uioverrides.states.OverviewState;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
@@ -79,7 +79,7 @@
     private boolean mFinishFastOnSecondTouch;
 
     public PortraitStatesTouchController(Launcher l, boolean allowDragToOverview) {
-        super(l, SwipeDetector.VERTICAL);
+        super(l, SingleAxisSwipeDetector.VERTICAL);
         mOverviewPortraitStateTouchHelper = new PortraitOverviewStateTouchHelper(l);
         mAllowDragToOverview = allowDragToOverview;
     }
@@ -177,6 +177,20 @@
         return builder;
     }
 
+    private AnimatorSetBuilder getNormalToAllAppsAnimation() {
+        AnimatorSetBuilder builder = new AnimatorSetBuilder();
+        builder.setInterpolator(ANIM_ALL_APPS_FADE, Interpolators.clampToProgress(ACCEL,
+                0, ALL_APPS_CONTENT_FADE_THRESHOLD));
+        return builder;
+    }
+
+    private AnimatorSetBuilder getAllAppsToNormalAnimation() {
+        AnimatorSetBuilder builder = new AnimatorSetBuilder();
+        builder.setInterpolator(ANIM_ALL_APPS_FADE, Interpolators.clampToProgress(DEACCEL,
+                1 - ALL_APPS_CONTENT_FADE_THRESHOLD, 1));
+        return builder;
+    }
+
     @Override
     protected AnimatorSetBuilder getAnimatorSetBuilderForStates(LauncherState fromState,
             LauncherState toState) {
@@ -187,6 +201,10 @@
             builder = getOverviewToAllAppsAnimation();
         } else if (fromState == ALL_APPS && toState == OVERVIEW) {
             builder = getAllAppsToOverviewAnimation();
+        } else if (fromState == NORMAL && toState == ALL_APPS) {
+            builder = getNormalToAllAppsAnimation();
+        } else if (fromState == ALL_APPS && toState == NORMAL) {
+            builder = getAllAppsToNormalAnimation();
         }
         return builder;
     }
diff --git a/quickstep/src/com/android/quickstep/ActivityControlHelper.java b/quickstep/src/com/android/quickstep/ActivityControlHelper.java
index 5c9c7d4..110cc23 100644
--- a/quickstep/src/com/android/quickstep/ActivityControlHelper.java
+++ b/quickstep/src/com/android/quickstep/ActivityControlHelper.java
@@ -36,6 +36,7 @@
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.quickstep.util.RemoteAnimationProvider;
 import com.android.quickstep.util.RemoteAnimationTargetSet;
+import com.android.quickstep.util.ShelfPeekAnim;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 
 import java.util.function.BiPredicate;
@@ -109,16 +110,6 @@
 
     interface AnimationFactory {
 
-        enum ShelfAnimState {
-            HIDE(true), PEEK(true), OVERVIEW(false), CANCEL(false);
-
-            ShelfAnimState(boolean shouldPreformHaptic) {
-                this.shouldPreformHaptic = shouldPreformHaptic;
-            }
-
-            public final boolean shouldPreformHaptic;
-        }
-
         default void onRemoteAnimationReceived(RemoteAnimationTargetSet targets) { }
 
         void createActivityController(long transitionLength);
@@ -127,8 +118,8 @@
 
         default void onTransitionCancelled() { }
 
-        default void setShelfState(ShelfAnimState animState, Interpolator interpolator,
-                long duration) { }
+        default void setShelfState(ShelfPeekAnim.ShelfAnimState animState,
+                Interpolator interpolator, long duration) { }
 
         /**
          * @param attached Whether to show RecentsView alongside the app window. If false, recents
diff --git a/quickstep/src/com/android/quickstep/BaseRecentsActivity.java b/quickstep/src/com/android/quickstep/BaseRecentsActivity.java
index c840132..1ac7ed4 100644
--- a/quickstep/src/com/android/quickstep/BaseRecentsActivity.java
+++ b/quickstep/src/com/android/quickstep/BaseRecentsActivity.java
@@ -157,6 +157,6 @@
     public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
         super.dump(prefix, fd, writer, args);
         writer.println(prefix + "Misc:");
-        dumpMisc(writer);
+        dumpMisc(prefix + "\t", writer);
     }
 }
diff --git a/quickstep/src/com/android/quickstep/OverviewInteractionState.java b/quickstep/src/com/android/quickstep/OverviewInteractionState.java
index 78b48d7..858c3b6 100644
--- a/quickstep/src/com/android/quickstep/OverviewInteractionState.java
+++ b/quickstep/src/com/android/quickstep/OverviewInteractionState.java
@@ -15,20 +15,21 @@
  */
 package com.android.quickstep;
 
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
+
 import android.content.Context;
 import android.os.Handler;
 import android.os.Message;
 import android.os.RemoteException;
 import android.util.Log;
 
+import androidx.annotation.WorkerThread;
+
 import com.android.launcher3.Utilities;
 import com.android.launcher3.allapps.DiscoveryBounce;
 import com.android.launcher3.util.MainThreadInitializedObject;
-import com.android.launcher3.util.UiThreadHelper;
 import com.android.systemui.shared.recents.ISystemUiProxy;
 
-import androidx.annotation.WorkerThread;
-
 /**
  * Sets alpha for the back button
  */
@@ -62,7 +63,7 @@
         // because of its high send frequency and data may be very different than the previous value
         // For example, send back alpha on uihandler to avoid flickering when setting its visibility
         mUiHandler = new Handler(this::handleUiMessage);
-        mBgHandler = new Handler(UiThreadHelper.getBackgroundLooper(), this::handleBgMessage);
+        mBgHandler = new Handler(UI_HELPER_EXECUTOR.getLooper(), this::handleBgMessage);
 
         onNavigationModeChanged(SysUINavigationMode.INSTANCE.get(context)
                 .addModeChangeListener(this::onNavigationModeChanged));
diff --git a/quickstep/src/com/android/quickstep/RecentTasksList.java b/quickstep/src/com/android/quickstep/RecentTasksList.java
index e41dba9..10f9feb 100644
--- a/quickstep/src/com/android/quickstep/RecentTasksList.java
+++ b/quickstep/src/com/android/quickstep/RecentTasksList.java
@@ -16,19 +16,22 @@
 
 package com.android.quickstep;
 
-import static com.android.quickstep.TouchInteractionService.BACKGROUND_EXECUTOR;
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 
 import android.annotation.TargetApi;
 import android.app.ActivityManager;
-import android.content.Context;
 import android.os.Build;
 import android.os.Process;
 import android.util.SparseBooleanArray;
-import com.android.launcher3.MainThreadExecutor;
+
+import androidx.annotation.VisibleForTesting;
+
+import com.android.launcher3.util.LooperExecutor;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
 import com.android.systemui.shared.system.KeyguardManagerCompat;
 import com.android.systemui.shared.system.TaskStackChangeListener;
+
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -41,7 +44,8 @@
 public class RecentTasksList extends TaskStackChangeListener {
 
     private final KeyguardManagerCompat mKeyguardManager;
-    private final MainThreadExecutor mMainThreadExecutor;
+    private final LooperExecutor mMainThreadExecutor;
+    private final ActivityManagerWrapper mActivityManagerWrapper;
 
     // The list change id, increments as the task list changes in the system
     private int mChangeId;
@@ -52,11 +56,13 @@
 
     ArrayList<Task> mTasks = new ArrayList<>();
 
-    public RecentTasksList(Context context) {
-        mMainThreadExecutor = new MainThreadExecutor();
-        mKeyguardManager = new KeyguardManagerCompat(context);
+    public RecentTasksList(LooperExecutor mainThreadExecutor,
+            KeyguardManagerCompat keyguardManager, ActivityManagerWrapper activityManagerWrapper) {
+        mMainThreadExecutor = mainThreadExecutor;
+        mKeyguardManager = keyguardManager;
         mChangeId = 1;
-        ActivityManagerWrapper.getInstance().registerTaskStackListener(this);
+        mActivityManagerWrapper = activityManagerWrapper;
+        mActivityManagerWrapper.registerTaskStackListener(this);
     }
 
     /**
@@ -64,7 +70,7 @@
      */
     public void getTaskKeys(int numTasks, Consumer<ArrayList<Task>> callback) {
         // Kick off task loading in the background
-        BACKGROUND_EXECUTOR.execute(() -> {
+        UI_HELPER_EXECUTOR.execute(() -> {
             ArrayList<Task> tasks = loadTasksInBackground(numTasks, true /* loadKeysOnly */);
             mMainThreadExecutor.execute(() -> callback.accept(tasks));
         });
@@ -86,12 +92,12 @@
         if (mLastLoadedId == mChangeId && (!mLastLoadHadKeysOnly || loadKeysOnly)) {
             // The list is up to date, send the callback on the next frame,
             // so that requestID can be returned first.
-            mMainThreadExecutor.getHandler().post(resultCallback);
+            mMainThreadExecutor.post(resultCallback);
             return requestLoadId;
         }
 
         // Kick off task loading in the background
-        BACKGROUND_EXECUTOR.execute(() -> {
+        UI_HELPER_EXECUTOR.execute(() -> {
             ArrayList<Task> tasks = loadTasksInBackground(Integer.MAX_VALUE, loadKeysOnly);
 
             mMainThreadExecutor.execute(() -> {
@@ -136,12 +142,13 @@
     /**
      * Loads and creates a list of all the recent tasks.
      */
-    private ArrayList<Task> loadTasksInBackground(int numTasks,
+    @VisibleForTesting
+    ArrayList<Task> loadTasksInBackground(int numTasks,
             boolean loadKeysOnly) {
         int currentUserId = Process.myUserHandle().getIdentifier();
         ArrayList<Task> allTasks = new ArrayList<>();
         List<ActivityManager.RecentTaskInfo> rawTasks =
-                ActivityManagerWrapper.getInstance().getRecentTasks(numTasks, currentUserId);
+                mActivityManagerWrapper.getRecentTasks(numTasks, currentUserId);
         // The raw tasks are given in most-recent to least-recent order, we need to reverse it
         Collections.reverse(rawTasks);
 
diff --git a/quickstep/src/com/android/quickstep/RecentsActivityTracker.java b/quickstep/src/com/android/quickstep/RecentsActivityTracker.java
index f9d2f11..4d1d9ef 100644
--- a/quickstep/src/com/android/quickstep/RecentsActivityTracker.java
+++ b/quickstep/src/com/android/quickstep/RecentsActivityTracker.java
@@ -15,6 +15,8 @@
  */
 package com.android.quickstep;
 
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.Intent;
@@ -22,7 +24,6 @@
 import android.os.Bundle;
 import android.os.Handler;
 
-import com.android.launcher3.MainThreadExecutor;
 import com.android.quickstep.ActivityControlHelper.ActivityInitListener;
 import com.android.quickstep.util.RemoteAnimationProvider;
 
@@ -92,14 +93,10 @@
     private static class Scheduler implements Runnable {
 
         private WeakReference<RecentsActivityTracker> mPendingTracker = new WeakReference<>(null);
-        private MainThreadExecutor mMainThreadExecutor;
 
         public synchronized void schedule(RecentsActivityTracker tracker) {
             mPendingTracker = new WeakReference<>(tracker);
-            if (mMainThreadExecutor == null) {
-                mMainThreadExecutor = new MainThreadExecutor();
-            }
-            mMainThreadExecutor.execute(this);
+            MAIN_EXECUTOR.execute(this);
         }
 
         @Override
diff --git a/quickstep/src/com/android/quickstep/RecentsModel.java b/quickstep/src/com/android/quickstep/RecentsModel.java
index dfab434..2e59ed5 100644
--- a/quickstep/src/com/android/quickstep/RecentsModel.java
+++ b/quickstep/src/com/android/quickstep/RecentsModel.java
@@ -15,6 +15,10 @@
  */
 package com.android.quickstep;
 
+import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
+
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.util.Executors.createAndStartNewLooper;
 import static com.android.quickstep.TaskUtils.checkCurrentOrManagedUserId;
 
 import android.annotation.TargetApi;
@@ -22,16 +26,20 @@
 import android.content.ComponentCallbacks2;
 import android.content.Context;
 import android.os.Build;
-import android.os.HandlerThread;
+import android.os.Looper;
 import android.os.Process;
 import android.os.RemoteException;
+import android.os.UserHandle;
 import android.util.Log;
 
+import com.android.launcher3.compat.LauncherAppsCompat;
+import com.android.launcher3.compat.LauncherAppsCompat.OnAppsChangedCallbackCompat;
 import com.android.launcher3.util.MainThreadInitializedObject;
 import com.android.systemui.shared.recents.ISystemUiProxy;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
+import com.android.systemui.shared.system.KeyguardManagerCompat;
 import com.android.systemui.shared.system.TaskStackChangeListener;
 
 import java.util.ArrayList;
@@ -61,13 +69,14 @@
 
     private RecentsModel(Context context) {
         mContext = context;
-        HandlerThread loaderThread = new HandlerThread("TaskThumbnailIconCache",
-                Process.THREAD_PRIORITY_BACKGROUND);
-        loaderThread.start();
-        mTaskList = new RecentTasksList(context);
-        mIconCache = new TaskIconCache(context, loaderThread.getLooper());
-        mThumbnailCache = new TaskThumbnailCache(context, loaderThread.getLooper());
+        Looper looper =
+                createAndStartNewLooper("TaskThumbnailIconCache", THREAD_PRIORITY_BACKGROUND);
+        mTaskList = new RecentTasksList(MAIN_EXECUTOR,
+                new KeyguardManagerCompat(context), ActivityManagerWrapper.getInstance());
+        mIconCache = new TaskIconCache(context, looper);
+        mThumbnailCache = new TaskThumbnailCache(context, looper);
         ActivityManagerWrapper.getInstance().registerTaskStackListener(this);
+        setupPackageListener();
     }
 
     public TaskIconCache getIconCache() {
@@ -166,6 +175,7 @@
     public void onTaskRemoved(int taskId) {
         Task.TaskKey dummyKey = new Task.TaskKey(taskId, 0, null, null, 0, 0);
         mThumbnailCache.remove(dummyKey);
+        mIconCache.onTaskRemoved(dummyKey);
     }
 
     public void setSystemUiProxy(ISystemUiProxy systemUiProxy) {
@@ -200,6 +210,21 @@
         }
     }
 
+    private void setupPackageListener() {
+        LauncherAppsCompat.getInstance(mContext)
+                .addOnAppsChangedCallback(new OnAppsChangedCallbackCompat() {
+                    @Override
+                    public void onPackageRemoved(String packageName, UserHandle user) {
+                        mIconCache.invalidatePackage(packageName);
+                    }
+
+                    @Override
+                    public void onPackageChanged(String packageName, UserHandle user) {
+                        mIconCache.invalidatePackage(packageName);
+                    }
+                });
+    }
+
     public void addThumbnailChangeListener(TaskThumbnailChangeListener listener) {
         mThumbnailChangeListeners.add(listener);
     }
diff --git a/quickstep/src/com/android/quickstep/TaskIconCache.java b/quickstep/src/com/android/quickstep/TaskIconCache.java
index 07af9b3..289a129 100644
--- a/quickstep/src/com/android/quickstep/TaskIconCache.java
+++ b/quickstep/src/com/android/quickstep/TaskIconCache.java
@@ -16,6 +16,7 @@
 package com.android.quickstep;
 
 import static com.android.launcher3.uioverrides.RecentsUiFactory.GO_LOW_RAM_RECENTS_ENABLED;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 
 import android.content.ComponentName;
 import android.content.Context;
@@ -27,26 +28,25 @@
 import android.util.LruCache;
 import android.view.accessibility.AccessibilityManager;
 
-import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.icons.cache.HandlerRunnable;
-import com.android.launcher3.uioverrides.RecentsUiFactory;
 import com.android.launcher3.util.Preconditions;
 import com.android.systemui.shared.recents.model.Task;
+import com.android.systemui.shared.recents.model.Task.TaskKey;
 import com.android.systemui.shared.recents.model.TaskKeyLruCache;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
 
+import java.util.Map;
 import java.util.function.Consumer;
 
 /**
  * Manages the caching of task icons and related data.
- * TODO: This class should later be merged into IconCache.
+ * TODO(b/138944598): This class should later be merged into IconCache.
  */
 public class TaskIconCache {
 
     private final Handler mBackgroundHandler;
-    private final MainThreadExecutor mMainThreadExecutor;
     private final AccessibilityManager mAccessibilityManager;
 
     private final NormalizedIconLoader mIconLoader;
@@ -67,7 +67,6 @@
 
     public TaskIconCache(Context context, Looper backgroundLooper) {
         mBackgroundHandler = new Handler(backgroundLooper);
-        mMainThreadExecutor = new MainThreadExecutor();
         mAccessibilityManager = context.getSystemService(AccessibilityManager.class);
 
         Resources res = context.getResources();
@@ -103,7 +102,7 @@
                     // We don't call back to the provided callback in this case
                     return;
                 }
-                mMainThreadExecutor.execute(() -> {
+                MAIN_EXECUTOR.execute(() -> {
                     task.icon = icon;
                     task.titleDescription = contentDescription;
                     callback.accept(task);
@@ -149,6 +148,21 @@
         return label;
     }
 
+
+    void onTaskRemoved(TaskKey taskKey) {
+        mIconCache.remove(taskKey);
+    }
+
+    void invalidatePackage(String packageName) {
+        // TODO(b/138944598): Merge this class into IconCache so we can do this at the base level
+        Map<ComponentName, ActivityInfo> activityInfoCache = mActivityInfoCache.snapshot();
+        for (ComponentName cn : activityInfoCache.keySet()) {
+            if (cn.getPackageName().equals(packageName)) {
+                mActivityInfoCache.remove(cn);
+            }
+        }
+    }
+
     public static abstract class IconLoadRequest extends HandlerRunnable {
         IconLoadRequest(Handler handler) {
             super(handler, null);
diff --git a/quickstep/src/com/android/quickstep/TaskThumbnailCache.java b/quickstep/src/com/android/quickstep/TaskThumbnailCache.java
index 57c5a27..3b50c26 100644
--- a/quickstep/src/com/android/quickstep/TaskThumbnailCache.java
+++ b/quickstep/src/com/android/quickstep/TaskThumbnailCache.java
@@ -15,12 +15,14 @@
  */
 package com.android.quickstep;
 
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+
 import android.app.ActivityManager;
 import android.content.Context;
 import android.content.res.Resources;
 import android.os.Handler;
 import android.os.Looper;
-import com.android.launcher3.MainThreadExecutor;
+
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.icons.cache.HandlerRunnable;
@@ -30,13 +32,13 @@
 import com.android.systemui.shared.recents.model.TaskKeyLruCache;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
+
 import java.util.ArrayList;
 import java.util.function.Consumer;
 
 public class TaskThumbnailCache {
 
     private final Handler mBackgroundHandler;
-    private final MainThreadExecutor mMainThreadExecutor;
 
     private final int mCacheSize;
     private final ThumbnailCache mCache;
@@ -94,7 +96,6 @@
 
     public TaskThumbnailCache(Context context, Looper backgroundLooper) {
         mBackgroundHandler = new Handler(backgroundLooper);
-        mMainThreadExecutor = new MainThreadExecutor();
         mHighResLoadingState = new HighResLoadingState(context);
 
         Resources res = context.getResources();
@@ -168,7 +169,7 @@
                     // We don't call back to the provided callback in this case
                     return;
                 }
-                mMainThreadExecutor.execute(() -> {
+                MAIN_EXECUTOR.execute(() -> {
                     mCache.put(key, thumbnail);
                     callback.accept(thumbnail);
                     onEnd();
diff --git a/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java b/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
index bf3cd8a..8e5ed1a 100644
--- a/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
+++ b/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
@@ -29,12 +29,16 @@
 import android.stats.launcher.nano.Launcher;
 import android.stats.launcher.nano.LauncherExtension;
 import android.stats.launcher.nano.LauncherTarget;
+import android.util.Log;
 import android.view.View;
 
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.logging.StatsLogManager;
 import com.android.launcher3.logging.StatsLogUtils;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ItemType;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ControlType;
 import com.android.launcher3.util.ComponentKey;
 import com.android.systemui.shared.system.StatsLogCompat;
 import com.google.protobuf.nano.MessageNano;
@@ -50,6 +54,8 @@
 public class StatsLogCompatManager extends StatsLogManager {
 
     private static final int SUPPORTED_TARGET_DEPTH = 2;
+    private static final String TAG = "StatsLogCompatManager";
+    private static final boolean DEBUG = false;
 
     public StatsLogCompatManager(Context context) { }
 
@@ -59,6 +65,9 @@
         ext.srcTarget = new LauncherTarget[SUPPORTED_TARGET_DEPTH];
         int srcState = mStateProvider.getCurrentState();
         fillInLauncherExtension(v, ext);
+        if (ext.srcTarget[0] != null) {
+            ext.srcTarget[0].item = LauncherTarget.APP_ICON;
+        }
         StatsLogCompat.write(LAUNCH_APP, srcState, BACKGROUND /* dstState */,
                 MessageNano.toByteArray(ext), true);
     }
@@ -95,28 +104,132 @@
     }
 
     public static boolean fillInLauncherExtension(View v, LauncherExtension extension) {
+        if (DEBUG) {
+            Log.d(TAG, "fillInLauncherExtension");
+        }
+
         StatsLogUtils.LogContainerProvider provider = StatsLogUtils.getLaunchProviderRecursive(v);
         if (v == null || !(v.getTag() instanceof ItemInfo) || provider == null) {
+            if (DEBUG) {
+                Log.d(TAG, "View or provider is null, or view doesn't have an ItemInfo tag.");
+            }
+
             return false;
         }
         ItemInfo itemInfo = (ItemInfo) v.getTag();
         Target child = new Target();
         Target parent = new Target();
         provider.fillInLogContainerData(v, itemInfo, child, parent);
+        extension.srcTarget[0] = new LauncherTarget();
+        extension.srcTarget[1] = new LauncherTarget();
         copy(child, extension.srcTarget[0]);
         copy(parent, extension.srcTarget[1]);
         return true;
     }
 
     public static boolean fillInLauncherExtensionWithPageId(LauncherExtension ext, int pageId) {
+        if (DEBUG) {
+            Log.d(TAG, "fillInLauncherExtensionWithPageId, pageId = " + pageId);
+        }
+
         Target target = new Target();
         target.pageIndex = pageId;
+        ext.srcTarget[0] = new LauncherTarget();
         copy(target, ext.srcTarget[0]);
         return true;
     }
 
     private static void copy(Target src, LauncherTarget dst) {
-        // fill in
+        if (DEBUG) {
+            Log.d(TAG, "copy target information from clearcut Target to LauncherTarget.");
+        }
+
+        // Fill in type
+        switch (src.type) {
+            case Target.Type.ITEM:
+                dst.type = LauncherTarget.ITEM_TYPE;
+                break;
+            case Target.Type.CONTROL:
+                dst.type = LauncherTarget.CONTROL_TYPE;
+                break;
+            case Target.Type.CONTAINER:
+                dst.type = LauncherTarget.CONTAINER_TYPE;
+                break;
+            default:
+                dst.type = LauncherTarget.NONE;
+                break;
+        }
+
+        // Fill in item
+        switch (src.itemType) {
+            case ItemType.APP_ICON:
+                dst.item = LauncherTarget.APP_ICON;
+                break;
+            case ItemType.SHORTCUT:
+                dst.item = LauncherTarget.SHORTCUT;
+                break;
+            case ItemType.WIDGET:
+                dst.item = LauncherTarget.WIDGET;
+                break;
+            case ItemType.FOLDER_ICON:
+                dst.item = LauncherTarget.FOLDER_ICON;
+                break;
+            case ItemType.DEEPSHORTCUT:
+                dst.item = LauncherTarget.DEEPSHORTCUT;
+                break;
+            case ItemType.SEARCHBOX:
+                dst.item = LauncherTarget.SEARCHBOX;
+                break;
+            case ItemType.EDITTEXT:
+                dst.item = LauncherTarget.EDITTEXT;
+                break;
+            case ItemType.NOTIFICATION:
+                dst.item = LauncherTarget.NOTIFICATION;
+                break;
+            case ItemType.TASK:
+                dst.item = LauncherTarget.TASK;
+                break;
+            default:
+                dst.item = LauncherTarget.DEFAULT_ITEM;
+                break;
+        }
+
+        // Fill in container
+        switch (src.containerType) {
+            case ContainerType.HOTSEAT:
+                dst.container = LauncherTarget.HOTSEAT;
+                break;
+            case ContainerType.FOLDER:
+                dst.container = LauncherTarget.FOLDER;
+                break;
+            case ContainerType.PREDICTION:
+                dst.container = LauncherTarget.PREDICTION;
+                break;
+            case ContainerType.SEARCHRESULT:
+                dst.container = LauncherTarget.SEARCHRESULT;
+                break;
+            default:
+                dst.container = LauncherTarget.DEFAULT_CONTAINER;
+                break;
+        }
+
+        // Fill in control
+        switch (src.controlType) {
+            case ControlType.UNINSTALL_TARGET:
+                dst.control = LauncherTarget.UNINSTALL;
+                break;
+            case ControlType.REMOVE_TARGET:
+                dst.control = LauncherTarget.REMOVE;
+                break;
+            default:
+                dst.control = LauncherTarget.DEFAULT_CONTROL;
+                break;
+        }
+
+        // Fill in other fields
+        dst.pageId = src.pageIndex;
+        dst.gridX = src.gridX;
+        dst.gridY = src.gridY;
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/logging/UserEventDispatcherExtension.java b/quickstep/src/com/android/quickstep/logging/UserEventDispatcherExtension.java
index 4a11601..9ca7f23 100644
--- a/quickstep/src/com/android/quickstep/logging/UserEventDispatcherExtension.java
+++ b/quickstep/src/com/android/quickstep/logging/UserEventDispatcherExtension.java
@@ -20,10 +20,10 @@
 
 import static com.android.launcher3.logging.LoggerUtils.newLauncherEvent;
 import static com.android.launcher3.userevent.nano.LauncherLogProto.ControlType.CANCEL_TARGET;
-import static com.android.systemui.shared.system.LauncherEventUtil.VISIBLE;
 import static com.android.systemui.shared.system.LauncherEventUtil.DISMISS;
 import static com.android.systemui.shared.system.LauncherEventUtil.RECENTS_QUICK_SCRUB_ONBOARDING_TIP;
 import static com.android.systemui.shared.system.LauncherEventUtil.RECENTS_SWIPE_UP_ONBOARDING_TIP;
+import static com.android.systemui.shared.system.LauncherEventUtil.VISIBLE;
 
 import com.android.launcher3.logging.UserEventDispatcher;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
diff --git a/quickstep/src/com/android/quickstep/util/AssistantUtilities.java b/quickstep/src/com/android/quickstep/util/AssistantUtilities.java
new file mode 100644
index 0000000..552db1f
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/util/AssistantUtilities.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.util;
+
+import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.ACTIVITY_TYPE_ASSISTANT;
+
+import android.annotation.TargetApi;
+import android.app.TaskInfo;
+import android.content.Intent;
+import android.os.Build;
+
+import com.android.systemui.shared.system.ActivityManagerWrapper;
+import com.android.systemui.shared.system.TaskInfoCompat;
+
+/**
+ * Utility class for interacting with the Assistant.
+ */
+@TargetApi(Build.VERSION_CODES.Q)
+public final class AssistantUtilities {
+
+    /** Returns true if an Assistant activity that is excluded from recents is running. */
+    public static boolean isExcludedAssistantRunning() {
+        return isExcludedAssistant(ActivityManagerWrapper.getInstance().getRunningTask());
+    }
+
+    /** Returns true if the given task holds an Assistant activity that is excluded from recents. */
+    public static boolean isExcludedAssistant(TaskInfo info) {
+        return info != null
+            && TaskInfoCompat.getActivityType(info) == ACTIVITY_TYPE_ASSISTANT
+            && (info.baseIntent.getFlags() & Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS) != 0;
+    }
+
+    private AssistantUtilities() {}
+}
diff --git a/quickstep/src/com/android/quickstep/util/LayoutUtils.java b/quickstep/src/com/android/quickstep/util/LayoutUtils.java
index 050bdff..2e118b4 100644
--- a/quickstep/src/com/android/quickstep/util/LayoutUtils.java
+++ b/quickstep/src/com/android/quickstep/util/LayoutUtils.java
@@ -26,7 +26,7 @@
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
-import com.android.launcher3.config.FeatureFlags;
+import com.android.quickstep.SysUINavigationMode;
 
 import java.lang.annotation.Retention;
 
@@ -39,12 +39,27 @@
     @IntDef({MULTI_WINDOW_STRATEGY_HALF_SCREEN, MULTI_WINDOW_STRATEGY_DEVICE_PROFILE})
     private @interface MultiWindowStrategy {}
 
+    /**
+     * The height for the swipe up motion
+     */
+    public static float getDefaultSwipeHeight(Context context, DeviceProfile dp) {
+        float swipeHeight = dp.allAppsCellHeightPx - dp.allAppsIconTextSizePx;
+        if (SysUINavigationMode.getMode(context) == SysUINavigationMode.Mode.NO_BUTTON) {
+            swipeHeight -= dp.getInsets().bottom;
+        }
+        return swipeHeight;
+    }
+
     public static void calculateLauncherTaskSize(Context context, DeviceProfile dp, Rect outRect) {
         float extraSpace;
         if (dp.isVerticalBarLayout()) {
             extraSpace = 0;
         } else {
-            extraSpace = dp.hotseatBarSizePx + dp.verticalDragHandleSizePx;
+            Resources res = context.getResources();
+
+            extraSpace = getDefaultSwipeHeight(context, dp) + dp.verticalDragHandleSizePx
+                    + res.getDimensionPixelSize(R.dimen.dynamic_grid_hotseat_extra_vertical_size)
+                    + res.getDimensionPixelSize(R.dimen.dynamic_grid_hotseat_bottom_padding);
         }
         calculateTaskSize(context, dp, extraSpace, MULTI_WINDOW_STRATEGY_HALF_SCREEN, outRect);
     }
diff --git a/quickstep/src/com/android/quickstep/views/ShelfScrimView.java b/quickstep/src/com/android/quickstep/views/ShelfScrimView.java
index dc6b56e..3320dae 100644
--- a/quickstep/src/com/android/quickstep/views/ShelfScrimView.java
+++ b/quickstep/src/com/android/quickstep/views/ShelfScrimView.java
@@ -18,6 +18,7 @@
 import static com.android.launcher3.LauncherState.ALL_APPS_HEADER_EXTRA;
 import static com.android.launcher3.LauncherState.BACKGROUND_APP;
 import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.LauncherState.QUICK_SWITCH;
 import static com.android.launcher3.anim.Interpolators.ACCEL;
 import static com.android.launcher3.anim.Interpolators.ACCEL_2;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
@@ -35,15 +36,18 @@
 import android.view.animation.Interpolator;
 
 import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.QuickstepAppTransitionManagerImpl;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.Interpolators;
-import com.android.launcher3.uioverrides.states.OverviewState;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.ScrimView;
 import com.android.quickstep.SysUINavigationMode;
 import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.SysUINavigationMode.NavigationModeChangeListener;
+import com.android.quickstep.util.LayoutUtils;
+import com.android.quickstep.util.ShelfPeekAnim;
 
 /**
  * Scrim used for all-apps and shelf in Overview
@@ -161,9 +165,9 @@
                 mMidProgress =  OVERVIEW.getVerticalProgress(mLauncher);
                 Rect hotseatPadding = dp.getHotseatLayoutPadding();
                 int hotseatSize = dp.hotseatBarSizePx + dp.getInsets().bottom
-                        - hotseatPadding.bottom - hotseatPadding.top;
+                        + hotseatPadding.bottom + hotseatPadding.top;
                 float dragHandleTop =
-                        Math.min(hotseatSize, OverviewState.getDefaultSwipeHeight(context, dp));
+                        Math.min(hotseatSize, LayoutUtils.getDefaultSwipeHeight(context, dp));
                 mDragHandleProgress =  1 - (dragHandleTop / mShiftRange);
             }
             mTopOffset = dp.getInsets().top - mShelfOffset;
@@ -193,8 +197,12 @@
         if (mProgress >= 1) {
             mRemainingScreenColor = 0;
             mShelfColor = 0;
+            ShelfPeekAnim shelfPeekAnim = ((QuickstepAppTransitionManagerImpl)
+                    mLauncher.getAppTransitionManager()).getShelfPeekAnim();
+            LauncherState state = mLauncher.getStateManager().getState();
             if (mSysUINavigationMode == Mode.NO_BUTTON
-                    && mLauncher.getStateManager().getState() == BACKGROUND_APP) {
+                    && (state == BACKGROUND_APP || state == QUICK_SWITCH)
+                    && shelfPeekAnim.isPeeking()) {
                 // Show the shelf background when peeking during swipe up.
                 mShelfColor = setColorAlphaBound(mEndScrim, mMidAlpha);
             }
diff --git a/quickstep/tests/src/com/android/quickstep/AppPredictionsUITests.java b/quickstep/tests/src/com/android/quickstep/AppPredictionsUITests.java
index d0956d1..7801775 100644
--- a/quickstep/tests/src/com/android/quickstep/AppPredictionsUITests.java
+++ b/quickstep/tests/src/com/android/quickstep/AppPredictionsUITests.java
@@ -150,10 +150,10 @@
             List<AppTarget> targets = new ArrayList<>(activities.length);
             for (LauncherActivityInfo info : activities) {
                 ComponentName cn = info.getComponentName();
-                AppTarget target =
-                        new AppTarget.Builder(new AppTargetId("app:" + cn), cn.getPackageName(), info.getUser())
-                            .setClassName(cn.getClassName())
-                            .build();
+                AppTarget target = new AppTarget.Builder(
+                        new AppTargetId("app:" + cn), cn.getPackageName(), info.getUser())
+                        .setClassName(cn.getClassName())
+                        .build();
                 targets.add(target);
             }
             mCallback.onTargetsAvailable(targets);
diff --git a/quickstep/tests/src/com/android/quickstep/RecentTasksListTest.java b/quickstep/tests/src/com/android/quickstep/RecentTasksListTest.java
new file mode 100644
index 0000000..34eb7f8
--- /dev/null
+++ b/quickstep/tests/src/com/android/quickstep/RecentTasksListTest.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.quickstep;
+
+import static junit.framework.TestCase.assertNull;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.app.ActivityManager;
+
+import androidx.test.filters.SmallTest;
+
+import com.android.launcher3.util.LooperExecutor;
+import com.android.systemui.shared.recents.model.Task;
+import com.android.systemui.shared.system.ActivityManagerWrapper;
+import com.android.systemui.shared.system.KeyguardManagerCompat;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.Collections;
+import java.util.List;
+
+@SmallTest
+public class RecentTasksListTest {
+
+    private ActivityManagerWrapper mockActivityManagerWrapper;
+
+    // Class under test
+    private RecentTasksList mRecentTasksList;
+
+    @Before
+    public void setup() {
+        LooperExecutor mockMainThreadExecutor = mock(LooperExecutor.class);
+        KeyguardManagerCompat mockKeyguardManagerCompat = mock(KeyguardManagerCompat.class);
+        mockActivityManagerWrapper = mock(ActivityManagerWrapper.class);
+        mRecentTasksList = new RecentTasksList(mockMainThreadExecutor, mockKeyguardManagerCompat,
+                mockActivityManagerWrapper);
+    }
+
+    @Test
+    public void onTaskRemoved_reloadsAllTasks() {
+        mRecentTasksList.onTaskRemoved(0);
+        verify(mockActivityManagerWrapper, times(1))
+                .getRecentTasks(anyInt(), anyInt());
+    }
+
+    @Test
+    public void onTaskStackChanged_doesNotFetchTasks() {
+        mRecentTasksList.onTaskStackChanged();
+        verify(mockActivityManagerWrapper, times(0))
+                .getRecentTasks(anyInt(), anyInt());
+    }
+
+    @Test
+    public void loadTasksInBackground_onlyKeys_noValidTaskDescription() {
+        ActivityManager.RecentTaskInfo recentTaskInfo = new ActivityManager.RecentTaskInfo();
+        when(mockActivityManagerWrapper.getRecentTasks(anyInt(), anyInt()))
+                .thenReturn(Collections.singletonList(recentTaskInfo));
+
+        List<Task> taskList = mRecentTasksList.loadTasksInBackground(Integer.MAX_VALUE, true);
+
+        assertEquals(1, taskList.size());
+        assertNull(taskList.get(0).taskDescription.getLabel());
+    }
+
+    @Test
+    public void loadTasksInBackground_moreThanKeys_hasValidTaskDescription() {
+        String taskDescription = "Wheeee!";
+        ActivityManager.RecentTaskInfo recentTaskInfo = new ActivityManager.RecentTaskInfo();
+        recentTaskInfo.taskDescription = new ActivityManager.TaskDescription(taskDescription);
+        when(mockActivityManagerWrapper.getRecentTasks(anyInt(), anyInt()))
+                .thenReturn(Collections.singletonList(recentTaskInfo));
+
+        List<Task> taskList = mRecentTasksList.loadTasksInBackground(Integer.MAX_VALUE, false);
+
+        assertEquals(1, taskList.size());
+        assertEquals(taskDescription, taskList.get(0).taskDescription.getLabel());
+    }
+}
diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
index 885fdbf..8cd3bb6 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
@@ -17,6 +17,7 @@
 package com.android.quickstep;
 
 import static com.android.launcher3.ui.TaplTestsLauncher3.getAppPackageName;
+
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
@@ -34,6 +35,7 @@
 import com.android.launcher3.tapl.AllApps;
 import com.android.launcher3.tapl.AllAppsFromOverview;
 import com.android.launcher3.tapl.Background;
+import com.android.launcher3.tapl.LauncherInstrumentation.NavigationModel;
 import com.android.launcher3.tapl.Overview;
 import com.android.launcher3.tapl.OverviewTask;
 import com.android.launcher3.tapl.TestHelpers;
@@ -210,16 +212,21 @@
     @PortraitLandscape
     public void testBackground() throws Exception {
         startAppFast(resolveSystemApp(Intent.CATEGORY_APP_CALCULATOR));
+        final Background background = getAndAssertBackground();
+
+        assertNotNull("Background.switchToOverview() returned null", background.switchToOverview());
+        assertTrue("Launcher internal state didn't switch to Overview",
+                isInState(LauncherState.OVERVIEW));
+    }
+
+    private Background getAndAssertBackground() {
         final Background background = mLauncher.getBackground();
         assertNotNull("Launcher.getBackground() returned null", background);
         executeOnLauncher(launcher -> assertTrue(
                 "Launcher activity is the top activity; expecting another activity to be the top "
                         + "one",
                 isInBackground(launcher)));
-
-        assertNotNull("Background.switchToOverview() returned null", background.switchToOverview());
-        assertTrue("Launcher internal state didn't switch to Overview",
-                isInState(LauncherState.OVERVIEW));
+        return background;
     }
 
     @Test
@@ -237,4 +244,47 @@
         assertTrue("Launcher internal state is not Home", isInState(LauncherState.NORMAL));
         assertNotNull("getHome returned null", mLauncher.getWorkspace());
     }
+
+    @Test
+    @NavigationModeSwitch
+    @PortraitLandscape
+    public void testQuickSwitchFromApp() throws Exception {
+        startTestActivity(2);
+        startTestActivity(3);
+        startTestActivity(4);
+
+        Background background = getAndAssertBackground();
+        background.quickSwitchToPreviousApp();
+        assertTrue("The first app we should have quick switched to is not running",
+                isTestActivityRunning(3));
+
+        background = getAndAssertBackground();
+        background.quickSwitchToPreviousApp();
+        if (mLauncher.getNavigationModel() == NavigationModel.THREE_BUTTON) {
+            // 3-button mode toggles between 2 apps, rather than going back further.
+            assertTrue("Second quick switch should have returned to the first app.",
+                    isTestActivityRunning(4));
+        } else {
+            assertTrue("The second app we should have quick switched to is not running",
+                    isTestActivityRunning(2));
+        }
+        getAndAssertBackground();
+    }
+
+    private boolean isTestActivityRunning(int activityNumber) {
+        return mDevice.wait(Until.hasObject(By.pkg(getAppPackageName())
+                        .text("TestActivity" + activityNumber)),
+                DEFAULT_UI_TIMEOUT);
+    }
+
+    @Test
+    @NavigationModeSwitch
+    @PortraitLandscape
+    public void testQuickSwitchFromHome() throws Exception {
+        startTestActivity(2);
+        mLauncher.pressHome().quickSwitchToPreviousApp();
+        assertTrue("The most recent task is not running after quick switching from home",
+                isTestActivityRunning(2));
+        getAndAssertBackground();
+    }
 }
diff --git a/res/layout/folder_application.xml b/res/layout/folder_application.xml
index c156e11..32a5419 100644
--- a/res/layout/folder_application.xml
+++ b/res/layout/folder_application.xml
@@ -20,4 +20,5 @@
     style="@style/BaseIcon"
     android:textColor="?attr/folderTextColor"
     android:includeFontPadding="false"
+    android:hapticFeedbackEnabled="false"
     launcher:iconDisplay="folder" />
diff --git a/res/values-af/strings.xml b/res/values-af/strings.xml
index ca59afa..ba16dd3 100644
--- a/res/values-af/strings.xml
+++ b/res/values-af/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Werk"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Program is nie geïnstalleer nie."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Program is nie beskikbaar nie"</string>
diff --git a/res/values-am/strings.xml b/res/values-am/strings.xml
index d942e9e..0396df6 100644
--- a/res/values-am/strings.xml
+++ b/res/values-am/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"ስራ"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"መተግበሪያ አልተጫነም።"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"መተግበሪያ አይገኝም"</string>
diff --git a/res/values-ar/strings.xml b/res/values-ar/strings.xml
index cdf4144..aae55af 100644
--- a/res/values-ar/strings.xml
+++ b/res/values-ar/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"العمل"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"لم يتم تثبيت التطبيق."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"التطبيق ليس متاحًا"</string>
diff --git a/res/values-as/strings.xml b/res/values-as/strings.xml
index 2984603..221921f 100644
--- a/res/values-as/strings.xml
+++ b/res/values-as/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"কৰ্মস্থান"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"এপটো ইনষ্টল কৰা নহ\'ল।"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"এপটো নাই"</string>
diff --git a/res/values-az/strings.xml b/res/values-az/strings.xml
index 0f58010..7dd97d8 100644
--- a/res/values-az/strings.xml
+++ b/res/values-az/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"İş"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Tətbiq quraşdırılmayıb."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Tətbiq əlçatmazdır"</string>
diff --git a/res/values-b+sr+Latn/strings.xml b/res/values-b+sr+Latn/strings.xml
index f1cd265..0cf8f51 100644
--- a/res/values-b+sr+Latn/strings.xml
+++ b/res/values-b+sr+Latn/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Work"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Aplikacija nije instalirana."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Aplikacija nije dostupna"</string>
diff --git a/res/values-be/strings.xml b/res/values-be/strings.xml
index 5a17878..2ccd34f 100644
--- a/res/values-be/strings.xml
+++ b/res/values-be/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Працоўная"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Праграма не ўсталявана."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Праграма недаступная"</string>
@@ -133,7 +132,7 @@
     <string name="action_dismiss_notification" msgid="5909461085055959187">"Адхіліць"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"Апавяшчэнне адхілена"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"Асабістыя"</string>
-    <string name="all_apps_work_tab" msgid="4884822796154055118">"Працоўныя"</string>
+    <string name="all_apps_work_tab" msgid="4884822796154055118">"Праца"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"Працоўны профіль"</string>
     <string name="bottom_work_tab_user_education_title" msgid="5785851780786322825">"Знайдзіце працоўныя праграмы тут"</string>
     <string name="bottom_work_tab_user_education_body" msgid="2818107472360579152">"Кожная працоўная праграма мае значок і знаходзіцца пад аховай вашай арганізацыі. Для больш простага доступу перамясціце праграмы на Галоўны экран."</string>
diff --git a/res/values-bg/strings.xml b/res/values-bg/strings.xml
index 3af3689..4f281e0 100644
--- a/res/values-bg/strings.xml
+++ b/res/values-bg/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Работа"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Приложението не е инсталирано."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Приложението не е налично"</string>
diff --git a/res/values-bn/strings.xml b/res/values-bn/strings.xml
index a67674c..0a72632 100644
--- a/res/values-bn/strings.xml
+++ b/res/values-bn/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"কাজ"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"অ্যাপ্লিকেশান ইনস্টল করা নেই৷"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"অ্যাপ্লিকেশান অনুপলব্ধ"</string>
diff --git a/res/values-bs/strings.xml b/res/values-bs/strings.xml
index 655297a..ffffc17 100644
--- a/res/values-bs/strings.xml
+++ b/res/values-bs/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Posao"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Aplikacija nije instalirana."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Aplikacija nije dostupna"</string>
diff --git a/res/values-ca/strings.xml b/res/values-ca/strings.xml
index 9d3e18d..d28ec47 100644
--- a/res/values-ca/strings.xml
+++ b/res/values-ca/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Treball"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"L\'aplicació no s\'ha instal·lat."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"L\'aplicació no està disponible."</string>
diff --git a/res/values-cs/strings.xml b/res/values-cs/strings.xml
index 692b57d..57c5072 100644
--- a/res/values-cs/strings.xml
+++ b/res/values-cs/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Práce"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Aplikace není nainstalována."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Aplikace není k dispozici."</string>
diff --git a/res/values-da/strings.xml b/res/values-da/strings.xml
index 9e61475..093fe00 100644
--- a/res/values-da/strings.xml
+++ b/res/values-da/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Arbejde"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Appen er ikke installeret."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Appen er ikke tilgængelig"</string>
@@ -81,7 +80,7 @@
     <string name="widget_button_text" msgid="2880537293434387943">"Widgets"</string>
     <string name="wallpaper_button_text" msgid="8404103075899945851">"Baggrunde"</string>
     <string name="styles_wallpaper_button_text" msgid="4342122323125579619">"Layout og baggrunde"</string>
-    <string name="settings_button_text" msgid="8873672322605444408">"Indstillinger for startskærm"</string>
+    <string name="settings_button_text" msgid="8873672322605444408">"Startskærmindstillinger"</string>
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"Deaktiveret af din administrator"</string>
     <string name="allow_rotation_title" msgid="7728578836261442095">"Tillad rotation af startskærmen"</string>
     <string name="allow_rotation_desc" msgid="8662546029078692509">"Når telefonen roteres"</string>
diff --git a/res/values-de/strings.xml b/res/values-de/strings.xml
index 1470411..0e14472 100644
--- a/res/values-de/strings.xml
+++ b/res/values-de/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Arbeit"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"App ist nicht installiert."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"App nicht verfügbar"</string>
diff --git a/res/values-el/strings.xml b/res/values-el/strings.xml
index 2363e61..d80e905 100644
--- a/res/values-el/strings.xml
+++ b/res/values-el/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Εργασία"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Η εφαρμογή δεν έχει εγκατασταθεί."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Η εφαρμογή δεν είναι διαθέσιμη"</string>
diff --git a/res/values-en-rAU/strings.xml b/res/values-en-rAU/strings.xml
index 91fa2b5..89b95a8 100644
--- a/res/values-en-rAU/strings.xml
+++ b/res/values-en-rAU/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Work"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"App isn\'t installed."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"App isn\'t available"</string>
diff --git a/res/values-en-rCA/strings.xml b/res/values-en-rCA/strings.xml
index 91fa2b5..89b95a8 100644
--- a/res/values-en-rCA/strings.xml
+++ b/res/values-en-rCA/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Work"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"App isn\'t installed."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"App isn\'t available"</string>
diff --git a/res/values-en-rGB/strings.xml b/res/values-en-rGB/strings.xml
index 91fa2b5..89b95a8 100644
--- a/res/values-en-rGB/strings.xml
+++ b/res/values-en-rGB/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Work"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"App isn\'t installed."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"App isn\'t available"</string>
diff --git a/res/values-en-rIN/strings.xml b/res/values-en-rIN/strings.xml
index 91fa2b5..89b95a8 100644
--- a/res/values-en-rIN/strings.xml
+++ b/res/values-en-rIN/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Work"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"App isn\'t installed."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"App isn\'t available"</string>
diff --git a/res/values-en-rXC/strings.xml b/res/values-en-rXC/strings.xml
index 3c65f54..c741482 100644
--- a/res/values-en-rXC/strings.xml
+++ b/res/values-en-rXC/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"‎‏‎‎‎‎‎‏‎‏‏‏‎‎‎‎‎‎‏‎‎‎‏‏‎‏‏‏‏‏‏‎‎‏‎‎‏‎‎‎‎‎‎‏‎‏‎‎‎‎‏‎‎‏‏‎‏‎‏‏‏‏‏‎‎‏‎‏‏‎‏‎‏‎‎‎‎‏‎‏‎‏‏‎‎‏‏‎‏‎‎‏‏‎Launcher3‎‏‎‎‏‎"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"‎‏‎‎‎‎‎‏‎‏‏‏‎‎‎‎‎‎‏‎‎‎‏‏‎‏‏‏‏‏‏‏‎‏‏‎‏‎‎‎‎‎‏‎‏‏‎‎‏‏‏‏‎‎‏‎‏‏‎‏‎‎‏‏‎‎‏‏‎‏‏‏‎‏‎‏‎‏‏‎‏‏‎‎‏‏‏‏‏‎‎‏‎‏‎‎Work‎‏‎‎‏‎"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"‎‏‎‎‎‎‎‏‎‏‏‏‎‎‎‎‎‎‏‎‎‎‏‏‎‏‏‏‏‏‏‏‏‏‏‏‎‎‎‎‎‎‎‎‎‏‎‏‎‎‏‏‏‏‎‎‏‏‎‎‎‏‏‎‏‏‏‎‎‏‏‎‎‎‏‎‏‏‏‎‏‏‎‎‏‎‏‎‏‎‏‏‏‎‏‎‎App isn\'t installed.‎‏‎‎‏‎"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"‎‏‎‎‎‎‎‏‎‏‏‏‎‎‎‎‎‎‏‎‎‎‏‏‎‏‏‏‏‏‏‏‏‏‏‎‎‏‏‏‎‏‏‏‏‎‏‎‎‏‎‎‎‎‎‏‏‏‎‎‎‎‏‎‎‏‏‏‎‏‎‏‎‎‎‏‏‏‎‎‎‏‎‏‎‎‏‎‏‏‏‏‏‎‏‏‎App isn\'t available‎‏‎‎‏‎"</string>
diff --git a/res/values-es-rUS/strings.xml b/res/values-es-rUS/strings.xml
index 8041c8e..960ef93 100644
--- a/res/values-es-rUS/strings.xml
+++ b/res/values-es-rUS/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Trabajo"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"No se instaló la aplicación."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"La aplicación no está disponible."</string>
@@ -81,7 +80,7 @@
     <string name="widget_button_text" msgid="2880537293434387943">"Widgets"</string>
     <string name="wallpaper_button_text" msgid="8404103075899945851">"Fondos de pantalla"</string>
     <string name="styles_wallpaper_button_text" msgid="4342122323125579619">"Estilos y fondos de pantalla"</string>
-    <string name="settings_button_text" msgid="8873672322605444408">"Configuración de pantalla principal"</string>
+    <string name="settings_button_text" msgid="8873672322605444408">"Configuración de página principal"</string>
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"El administrador inhabilitó esta función"</string>
     <string name="allow_rotation_title" msgid="7728578836261442095">"Permitir la rotación de la pantalla principal"</string>
     <string name="allow_rotation_desc" msgid="8662546029078692509">"Al girar el teléfono"</string>
@@ -131,7 +130,7 @@
     <string name="action_dismiss_notification" msgid="5909461085055959187">"Descartar"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"Se descartó la notificación"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"Personales"</string>
-    <string name="all_apps_work_tab" msgid="4884822796154055118">"De trabajo"</string>
+    <string name="all_apps_work_tab" msgid="4884822796154055118">"Laborales"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"Perfil de trabajo"</string>
     <string name="bottom_work_tab_user_education_title" msgid="5785851780786322825">"Apps de trabajo"</string>
     <string name="bottom_work_tab_user_education_body" msgid="2818107472360579152">"Cada app de trabajo tiene una insignia y está protegida por tu organización. Transfiere las apps a la pantalla principal para acceder a ellas con mayor facilidad."</string>
diff --git a/res/values-es/strings.xml b/res/values-es/strings.xml
index 09b1239..01f60e4 100644
--- a/res/values-es/strings.xml
+++ b/res/values-es/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Trabajo"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"La aplicación no está instalada."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"La aplicación no está disponible"</string>
diff --git a/res/values-et/strings.xml b/res/values-et/strings.xml
index 5d98437..a3a177d 100644
--- a/res/values-et/strings.xml
+++ b/res/values-et/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Töö"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Rakendus pole installitud."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Rakendus ei ole saadaval"</string>
diff --git a/res/values-eu/strings.xml b/res/values-eu/strings.xml
index b77ab8f..10aebe7 100644
--- a/res/values-eu/strings.xml
+++ b/res/values-eu/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Lana"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Aplikazioa instalatu gabe dago."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Ez dago erabilgarri aplikazioa"</string>
@@ -84,7 +83,7 @@
     <string name="settings_button_text" msgid="8873672322605444408">"Hasierako pantailaren ezarpenak"</string>
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"Administratzaileak desgaitu du"</string>
     <string name="allow_rotation_title" msgid="7728578836261442095">"Eman hasierako pantaila biratzeko baimena"</string>
-    <string name="allow_rotation_desc" msgid="8662546029078692509">"Telefonoa biratzean"</string>
+    <string name="allow_rotation_desc" msgid="8662546029078692509">"Telefonoa biratzen denean"</string>
     <string name="notification_dots_title" msgid="9062440428204120317">"Jakinarazpen-biribiltxoak"</string>
     <string name="notification_dots_desc_on" msgid="1679848116452218908">"Aktibatuta"</string>
     <string name="notification_dots_desc_off" msgid="1760796511504341095">"Desaktibatuta"</string>
diff --git a/res/values-fa/strings.xml b/res/values-fa/strings.xml
index 63489c7..913ff48 100644
--- a/res/values-fa/strings.xml
+++ b/res/values-fa/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"کاری"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"برنامه نصب نشده است."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"برنامه در دسترس نیست"</string>
@@ -83,7 +82,7 @@
     <string name="styles_wallpaper_button_text" msgid="4342122323125579619">"سبک و کاغذدیواری"</string>
     <string name="settings_button_text" msgid="8873672322605444408">"تنظیمات صفحه اصلی"</string>
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"توسط سرپرست سیستم غیرفعال شده است"</string>
-    <string name="allow_rotation_title" msgid="7728578836261442095">"قابل‌چرخش بودن صفحه اصلی"</string>
+    <string name="allow_rotation_title" msgid="7728578836261442095">"امکان دادن به چرخش صفحه اصلی"</string>
     <string name="allow_rotation_desc" msgid="8662546029078692509">"وقتی تلفن چرخانده می‌شود"</string>
     <string name="notification_dots_title" msgid="9062440428204120317">"نقطه‌های اعلان"</string>
     <string name="notification_dots_desc_on" msgid="1679848116452218908">"روشن"</string>
@@ -131,7 +130,7 @@
     <string name="action_dismiss_notification" msgid="5909461085055959187">"رد کردن"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"اعلان رد شد"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"شخصی"</string>
-    <string name="all_apps_work_tab" msgid="4884822796154055118">"کاری"</string>
+    <string name="all_apps_work_tab" msgid="4884822796154055118">"محل کار"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"نمایه کاری"</string>
     <string name="bottom_work_tab_user_education_title" msgid="5785851780786322825">"اینجا برنامه‌های کاری را پیدا کنید"</string>
     <string name="bottom_work_tab_user_education_body" msgid="2818107472360579152">"همه برنامه‌های کاری نشانی دارند و توسط سازمانتان ایمن نگه داشته می‌شوند. برنامه‌های کاری را برای دسترسی آسان‌تر به صفحه اصلی انتقال دهید."</string>
diff --git a/res/values-fi/strings.xml b/res/values-fi/strings.xml
index 372ab6d..e0930b6 100644
--- a/res/values-fi/strings.xml
+++ b/res/values-fi/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Työ"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Sovellusta ei ole asennettu."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Sovellus ei ole käytettävissä"</string>
@@ -81,13 +80,13 @@
     <string name="widget_button_text" msgid="2880537293434387943">"Widgetit"</string>
     <string name="wallpaper_button_text" msgid="8404103075899945851">"Taustakuvat"</string>
     <string name="styles_wallpaper_button_text" msgid="4342122323125579619">"Tyylit ja taustakuvat"</string>
-    <string name="settings_button_text" msgid="8873672322605444408">"Aloitusnäyttö"</string>
+    <string name="settings_button_text" msgid="8873672322605444408">"Kotiasetukset"</string>
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"Järjestelmänvalvoja on poistanut toiminnon käytöstä."</string>
     <string name="allow_rotation_title" msgid="7728578836261442095">"Salli aloitusnäytön kiertäminen"</string>
     <string name="allow_rotation_desc" msgid="8662546029078692509">"Kun puhelinta kierretään"</string>
     <string name="notification_dots_title" msgid="9062440428204120317">"Pistemerkit"</string>
     <string name="notification_dots_desc_on" msgid="1679848116452218908">"Käytössä"</string>
-    <string name="notification_dots_desc_off" msgid="1760796511504341095">"Ei päällä"</string>
+    <string name="notification_dots_desc_off" msgid="1760796511504341095">"Ei käytössä"</string>
     <string name="title_missing_notification_access" msgid="7503287056163941064">"Ilmoituksien käyttöoikeus tarvitaan"</string>
     <string name="msg_missing_notification_access" msgid="281113995110910548">"<xliff:g id="NAME">%1$s</xliff:g> tarvitsee ilmoitusten käyttöoikeuden, jotta pistemerkkejä voidaan näyttää."</string>
     <string name="title_change_settings" msgid="1376365968844349552">"Muuta asetuksia"</string>
diff --git a/res/values-fr-rCA/strings.xml b/res/values-fr-rCA/strings.xml
index 5ac514d..50d6a06 100644
--- a/res/values-fr-rCA/strings.xml
+++ b/res/values-fr-rCA/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Lanceur3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Travail"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"L\'application n\'est pas installée."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Application indisponible"</string>
diff --git a/res/values-fr/strings.xml b/res/values-fr/strings.xml
index 85851a3..f308447 100644
--- a/res/values-fr/strings.xml
+++ b/res/values-fr/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Travail"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"L\'application n\'est pas installée."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Application indisponible"</string>
diff --git a/res/values-gl/strings.xml b/res/values-gl/strings.xml
index e115a72..ca5ba3c 100644
--- a/res/values-gl/strings.xml
+++ b/res/values-gl/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Traballo"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"A aplicación non está instalada"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"A aplicación non está dispoñible"</string>
diff --git a/res/values-gu/strings.xml b/res/values-gu/strings.xml
index f8fea78..9f86990 100644
--- a/res/values-gu/strings.xml
+++ b/res/values-gu/strings.xml
@@ -20,8 +20,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
-    <string name="work_folder_name" msgid="3753320833950115786">"ઑફિસ"</string>
+    <string name="work_folder_name" msgid="3753320833950115786">"કાર્યાલય"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"ઍપ્લિકેશન ઇન્સ્ટોલ થઈ નથી."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"ઍપ્લિકેશન ઉપલબ્ધ નથી"</string>
     <string name="safemode_shortcut_error" msgid="9160126848219158407">"સુરક્ષિત મોડમાં ડાઉનલોડ કરેલ ઍપ્લિકેશન અક્ષમ કરી"</string>
@@ -131,7 +130,7 @@
     <string name="action_dismiss_notification" msgid="5909461085055959187">"છોડી દો"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"સૂચના છોડી દીધી"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"મનગમતી ઍપ"</string>
-    <string name="all_apps_work_tab" msgid="4884822796154055118">"ઑફિસની ઍપ"</string>
+    <string name="all_apps_work_tab" msgid="4884822796154055118">"કાર્યાલયની ઍપ"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"ઑફિસની પ્રોફાઇલ"</string>
     <string name="bottom_work_tab_user_education_title" msgid="5785851780786322825">"કાર્ય ઍપને અહીંથી મેળવો"</string>
     <string name="bottom_work_tab_user_education_body" msgid="2818107472360579152">"દરેક કાર્ય ઍપ પાસે એક બૅજ હોય છે અને તમારી સંસ્થા દ્વારા તેને સુરક્ષિત રાખવામાં આવે છે. વધુ સરળ ઍક્સેસ માટે ઍપને તમારી હોમ સ્ક્રીન પર ખસેડો."</string>
diff --git a/res/values-hi/strings.xml b/res/values-hi/strings.xml
index c4c38b0..8494a1d 100644
--- a/res/values-hi/strings.xml
+++ b/res/values-hi/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"दफ़्तर"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"ऐप्‍लिकेशन इंस्‍टॉल नहीं है."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"ऐप्लिकेशन उपलब्ध नहीं है"</string>
diff --git a/res/values-hr/strings.xml b/res/values-hr/strings.xml
index 1caa27f..b738bc0 100644
--- a/res/values-hr/strings.xml
+++ b/res/values-hr/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Posao"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Aplikacija nije instalirana."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Aplikacija nije dostupna"</string>
diff --git a/res/values-hu/strings.xml b/res/values-hu/strings.xml
index 4c7d365..c9ab5e6 100644
--- a/res/values-hu/strings.xml
+++ b/res/values-hu/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Munka"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Az alkalmazás nincs telepítve."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Az alkalmazás nem érhető el"</string>
diff --git a/res/values-hy/strings.xml b/res/values-hy/strings.xml
index d1e8c9a..fc04ca3 100644
--- a/res/values-hy/strings.xml
+++ b/res/values-hy/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Աշխատանքային"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Ծրագիրը տեղադրված չէ:"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Հավելվածը հասանելի չէ"</string>
diff --git a/res/values-in/strings.xml b/res/values-in/strings.xml
index 3a50d9b..3129b4f 100644
--- a/res/values-in/strings.xml
+++ b/res/values-in/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Kantor"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Aplikasi tidak dipasang."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Aplikasi tidak tersedia"</string>
diff --git a/res/values-is/strings.xml b/res/values-is/strings.xml
index d66ca32..9d26c8c 100644
--- a/res/values-is/strings.xml
+++ b/res/values-is/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Vinna"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Forritið er ekki uppsett."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Forritið er ekki í boði"</string>
diff --git a/res/values-it/strings.xml b/res/values-it/strings.xml
index 8c4e3c5..1807817 100644
--- a/res/values-it/strings.xml
+++ b/res/values-it/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Lavoro"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"App non installata."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"App non disponibile"</string>
@@ -87,7 +86,7 @@
     <string name="allow_rotation_desc" msgid="8662546029078692509">"Con il telefono ruotato"</string>
     <string name="notification_dots_title" msgid="9062440428204120317">"Indicatori di notifica"</string>
     <string name="notification_dots_desc_on" msgid="1679848116452218908">"On"</string>
-    <string name="notification_dots_desc_off" msgid="1760796511504341095">"Off"</string>
+    <string name="notification_dots_desc_off" msgid="1760796511504341095">"OFF"</string>
     <string name="title_missing_notification_access" msgid="7503287056163941064">"Accesso alle notifiche necessario"</string>
     <string name="msg_missing_notification_access" msgid="281113995110910548">"Per mostrare gli indicatori di notifica, attiva le notifiche per l\'app <xliff:g id="NAME">%1$s</xliff:g>"</string>
     <string name="title_change_settings" msgid="1376365968844349552">"Modifica impostazioni"</string>
diff --git a/res/values-iw/strings.xml b/res/values-iw/strings.xml
index c25e879..3525699 100644
--- a/res/values-iw/strings.xml
+++ b/res/values-iw/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"עבודה"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"האפליקציה לא מותקנת."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"האפליקציה אינה זמינה"</string>
diff --git a/res/values-ja/strings.xml b/res/values-ja/strings.xml
index 354f020..dad4879 100644
--- a/res/values-ja/strings.xml
+++ b/res/values-ja/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"仕事用"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"このアプリはインストールされていません。"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"このアプリは使用できません"</string>
diff --git a/res/values-ka/strings.xml b/res/values-ka/strings.xml
index e9afef9..b348afb 100644
--- a/res/values-ka/strings.xml
+++ b/res/values-ka/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"სამუშაო"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"აპი არ არის დაყენებული."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"აპი მიუწვდომელია"</string>
diff --git a/res/values-kk/strings.xml b/res/values-kk/strings.xml
index 1cd9045..bd25ac9 100644
--- a/res/values-kk/strings.xml
+++ b/res/values-kk/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Жұмыс"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Қолданба орнатылмаған."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Қолданба қол жетімді емес"</string>
diff --git a/res/values-km/strings.xml b/res/values-km/strings.xml
index d8b80ac..9738042 100644
--- a/res/values-km/strings.xml
+++ b/res/values-km/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"ការងារ"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"មិន​បាន​ដំឡើង​កម្មវិធី។"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"មិន​មាន​កម្មវិធី"</string>
@@ -128,7 +127,7 @@
     <string name="widget_resized" msgid="9130327887929620">"ធាតុក្រាហ្វិកដែលបានប្តូរទំហំទៅទទឹងប្រវែង <xliff:g id="NUMBER_0">%1$s</xliff:g> កម្ពស់ប្រវែង <xliff:g id="NUMBER_1">%2$s</xliff:g>"</string>
     <string name="action_deep_shortcut" msgid="2864038805849372848">"ផ្លូវកាត់"</string>
     <string name="shortcuts_menu_with_notifications_description" msgid="2676582286544232849">"ផ្លូវកាត់ និង​ការជូនដំណឹង"</string>
-    <string name="action_dismiss_notification" msgid="5909461085055959187">"ច្រានចោល"</string>
+    <string name="action_dismiss_notification" msgid="5909461085055959187">"បដិសេធ"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"បាន​បដិសេធ​ការជូនដំណឹង"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"ផ្ទាល់ខ្លួន"</string>
     <string name="all_apps_work_tab" msgid="4884822796154055118">"ការងារ"</string>
diff --git a/res/values-kn/strings.xml b/res/values-kn/strings.xml
index 14c8300..67ea6a8 100644
--- a/res/values-kn/strings.xml
+++ b/res/values-kn/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"ಕೆಲಸ"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"ಅಪ್ಲಿಕೇಶನ್‌ ಅನ್ನು ಸ್ಥಾಪಿಸಲಾಗಿಲ್ಲ"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"ಅಪ್ಲಿಕೇಶನ್ ಲಭ್ಯವಿಲ್ಲ"</string>
diff --git a/res/values-ko/strings.xml b/res/values-ko/strings.xml
index 553b072..1b39e32 100644
--- a/res/values-ko/strings.xml
+++ b/res/values-ko/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"업무"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"앱이 설치되지 않았습니다."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"앱을 사용할 수 없음"</string>
diff --git a/res/values-ky/strings.xml b/res/values-ky/strings.xml
index 4f6c9c1..a1dd2e3 100644
--- a/res/values-ky/strings.xml
+++ b/res/values-ky/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Жумуш"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Колдонмо орнотулган эмес."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Колдонмо жеткиликтүү эмес"</string>
diff --git a/res/values-lo/strings.xml b/res/values-lo/strings.xml
index 6d5740b..e764347 100644
--- a/res/values-lo/strings.xml
+++ b/res/values-lo/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"ວຽກ"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"ແອັບຯບໍ່ໄດ້ຖືກຕິດຕັ້ງ."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"ແອັບຯ​ໃຊ້​ບໍ່​ໄດ້"</string>
@@ -83,7 +82,7 @@
     <string name="styles_wallpaper_button_text" msgid="4342122323125579619">"ຮູບແບບ ແລະ ຮູບພື້ນຫຼັງ"</string>
     <string name="settings_button_text" msgid="8873672322605444408">"ການຕັ້ງຄ່າ Home"</string>
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"ຖືກປິດການນຳໃຊ້ໂດຍຜູ້ເບິ່ງແຍງລະບົບຂອງທ່ານ"</string>
-    <string name="allow_rotation_title" msgid="7728578836261442095">"ອະນຸຍາດໃຫ້ໝຸນໜ້າຈໍຢູ່ໜ້າຫຼັກໄດ້"</string>
+    <string name="allow_rotation_title" msgid="7728578836261442095">"ອະນຸຍາດໃຫ້ໝຸນໜ້າຈໍທຳອິດໄດ້"</string>
     <string name="allow_rotation_desc" msgid="8662546029078692509">"ເມື່ອໝຸນໂທລະສັບ"</string>
     <string name="notification_dots_title" msgid="9062440428204120317">"ຈຸດການແຈ້ງເຕືອນ"</string>
     <string name="notification_dots_desc_on" msgid="1679848116452218908">"ເປີດ"</string>
diff --git a/res/values-lt/strings.xml b/res/values-lt/strings.xml
index 6571582..7f93ac8 100644
--- a/res/values-lt/strings.xml
+++ b/res/values-lt/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Darbas"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Programa neįdiegta."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Programa nepasiekiama"</string>
diff --git a/res/values-lv/strings.xml b/res/values-lv/strings.xml
index 3da0fbb..13d88fe 100644
--- a/res/values-lv/strings.xml
+++ b/res/values-lv/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Darbs"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Lietotne nav instalēta."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Lietotne nav pieejama."</string>
diff --git a/res/values-mk/strings.xml b/res/values-mk/strings.xml
index 593d207..458fb73 100644
--- a/res/values-mk/strings.xml
+++ b/res/values-mk/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Стартер3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Работа"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Апликацијата не е инсталирана."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Апликацијата не е достапна"</string>
@@ -83,7 +82,7 @@
     <string name="styles_wallpaper_button_text" msgid="4342122323125579619">"Стилови и тапети"</string>
     <string name="settings_button_text" msgid="8873672322605444408">"Поставки за почетен екран"</string>
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"Оневозможено од администраторот"</string>
-    <string name="allow_rotation_title" msgid="7728578836261442095">"Дозволи ротација на почетниот екран"</string>
+    <string name="allow_rotation_title" msgid="7728578836261442095">"Дозволете ротација на почетниот екран"</string>
     <string name="allow_rotation_desc" msgid="8662546029078692509">"Кога телефонот се ротира"</string>
     <string name="notification_dots_title" msgid="9062440428204120317">"Точки за известување"</string>
     <string name="notification_dots_desc_on" msgid="1679848116452218908">"Вклучено"</string>
diff --git a/res/values-ml/strings.xml b/res/values-ml/strings.xml
index 4362e7c..a118368 100644
--- a/res/values-ml/strings.xml
+++ b/res/values-ml/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"ലോഞ്ചർ3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"ഔദ്യോഗികം"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"അപ്ലിക്കേഷൻ ഇൻസ്‌റ്റാളുചെ‌യ്‌തിട്ടില്ല."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"അപ്ലിക്കേഷൻ ലഭ്യമല്ല"</string>
diff --git a/res/values-mn/strings.xml b/res/values-mn/strings.xml
index a6786c3..4aa58cb 100644
--- a/res/values-mn/strings.xml
+++ b/res/values-mn/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Ажил"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Апп суугаагүй байна."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Апп-г ашиглах боломжгүй"</string>
diff --git a/res/values-mr/strings.xml b/res/values-mr/strings.xml
index 7b76a0e..69eb5ee 100644
--- a/res/values-mr/strings.xml
+++ b/res/values-mr/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"कार्य"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"अ‍ॅप इंस्टॉल केलेला नाही."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"अ‍ॅप उपलब्ध नाही"</string>
@@ -89,7 +88,7 @@
     <string name="notification_dots_desc_on" msgid="1679848116452218908">"सुरू"</string>
     <string name="notification_dots_desc_off" msgid="1760796511504341095">"बंद"</string>
     <string name="title_missing_notification_access" msgid="7503287056163941064">"सूचनांच्या अ‍ॅक्सेसची आवश्यकता आहे"</string>
-    <string name="msg_missing_notification_access" msgid="281113995110910548">"सूचना बिंदू दाखवण्यासाठी, <xliff:g id="NAME">%1$s</xliff:g> साठी अ‍ॅप सूचना सुरू करा"</string>
+    <string name="msg_missing_notification_access" msgid="281113995110910548">"सूचना बिंदू दाखवण्यासाठी, <xliff:g id="NAME">%1$s</xliff:g> साठी अ‍ॅप सूचना चालू करा"</string>
     <string name="title_change_settings" msgid="1376365968844349552">"सेटिंग्ज बदला"</string>
     <string name="notification_dots_service_title" msgid="4284221181793592871">"सूचना बिंदू दाखवा"</string>
     <string name="auto_add_shortcuts_label" msgid="8222286205987725611">"होम स्क्रीनवर आयकन जोडा"</string>
diff --git a/res/values-ms/strings.xml b/res/values-ms/strings.xml
index 7d05412..492e6b6 100644
--- a/res/values-ms/strings.xml
+++ b/res/values-ms/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Kerja"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Apl tidak dipasang."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Apl tidak tersedia"</string>
diff --git a/res/values-my/strings.xml b/res/values-my/strings.xml
index fd1f7d9..78856f6 100644
--- a/res/values-my/strings.xml
+++ b/res/values-my/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"ဖွင့်တင်စက်၃"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"အလုပ်"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"အက်ပ်မထည့်သွင်းထားပါ"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"အက်ပ်လက်လှမ်း မမှီပါ"</string>
diff --git a/res/values-nb/strings.xml b/res/values-nb/strings.xml
index 2257367..356ed03 100644
--- a/res/values-nb/strings.xml
+++ b/res/values-nb/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Jobb"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Appen er ikke installert."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Appen er ikke tilgjengelig"</string>
diff --git a/res/values-ne/strings.xml b/res/values-ne/strings.xml
index 73d7d51..db2f6dc 100644
--- a/res/values-ne/strings.xml
+++ b/res/values-ne/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"कार्य"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"एप स्थापित छैन।"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"एप उपलब्ध छैन"</string>
@@ -45,20 +44,20 @@
     <string name="long_accessible_way_to_add_shortcut" msgid="3327314059613154633">"कुनै सर्टकट छनौट गर्न वा रोजेका कारबाहीहरू प्रयोग गर्न डबल ट्याप गरेर छोइराख्नुहोस्।"</string>
     <string name="out_of_space" msgid="4691004494942118364">"यो गृह स्क्रिनमा कुनै थप ठाउँ छैन।"</string>
     <string name="hotseat_out_of_space" msgid="7448809638125333693">"मन पर्ने ट्रे अब कुनै ठाँउ छैन"</string>
-    <string name="all_apps_button_label" msgid="8130441508702294465">"एपको सूची"</string>
+    <string name="all_apps_button_label" msgid="8130441508702294465">"अनुप्रयोगको सूची"</string>
     <string name="all_apps_button_personal_label" msgid="1315764287305224468">"व्यक्तिगत अनुप्रयोगहरूको सूची"</string>
     <string name="all_apps_button_work_label" msgid="7270707118948892488">"कार्यसम्बन्धी अनुप्रयोगहरूको सूची"</string>
     <string name="all_apps_home_button_label" msgid="252062713717058851">"गृह"</string>
     <string name="remove_drop_target_label" msgid="7812859488053230776">"हटाउनुहोस्"</string>
     <string name="uninstall_drop_target_label" msgid="4722034217958379417">"विस्थापित गर्नुहोस्"</string>
-    <string name="app_info_drop_target_label" msgid="692894985365717661">"एपको जानकारी"</string>
+    <string name="app_info_drop_target_label" msgid="692894985365717661">"अनुप्रयोगको जानकारी"</string>
     <string name="install_drop_target_label" msgid="2539096853673231757">"स्थापना गर्नुहोस्"</string>
     <string name="permlab_install_shortcut" msgid="5632423390354674437">"सर्टकट स्थापना गर्नेहोस्"</string>
-    <string name="permdesc_install_shortcut" msgid="923466509822011139">"प्रयोगकर्ताको हस्तक्षेप बिना एउटा एपलाई सर्टकटमा थप्नको लागि अनुमति दिनुहोस्।"</string>
+    <string name="permdesc_install_shortcut" msgid="923466509822011139">"प्रयोगकर्ताको हस्तक्षेप बिना एउटा अनुप्रयोगलाई सर्टकटमा थप्नको लागि अनुमति दिनुहोस्।"</string>
     <string name="permlab_read_settings" msgid="1941457408239617576">"गृह सेटिङहरू र सर्टकटहरू पढ्नुहोस्"</string>
-    <string name="permdesc_read_settings" msgid="5833423719057558387">"गृहमा एउटा एपलाई सेटिङहरू र सर्टकटहरू पढ्न अनुमति दिनुहोस्।"</string>
+    <string name="permdesc_read_settings" msgid="5833423719057558387">"गृहमा एउटा अनुप्रयोगलाई सेटिङहरू र सर्टकटहरू पढ्न अनुमति दिनुहोस्।"</string>
     <string name="permlab_write_settings" msgid="3574213698004620587">"गृह सेटिङहरू र सर्टकटहरू लेख्नुहोस्"</string>
-    <string name="permdesc_write_settings" msgid="5440712911516509985">"गृहमा एउटा एपलाई सेटिङ र सर्टकट बदल्न अनुमति दिनुहोस्।"</string>
+    <string name="permdesc_write_settings" msgid="5440712911516509985">"गृहमा एउटा अनुप्रयोगलाई सेटिङ र सर्टकट बदल्न अनुमति दिनुहोस्।"</string>
     <string name="msg_no_phone_permission" msgid="9208659281529857371">"<xliff:g id="APP_NAME">%1$s</xliff:g> ले फोन कलहरू गर्न अनुमति छैन"</string>
     <string name="gadget_error_text" msgid="6081085226050792095">"समस्या लोडिङ गर्ने विजेट"</string>
     <string name="gadget_setup_text" msgid="8274003207686040488">"सेटअप"</string>
diff --git a/res/values-nl/strings.xml b/res/values-nl/strings.xml
index 7db7845..b501678 100644
--- a/res/values-nl/strings.xml
+++ b/res/values-nl/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Werk"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"App is niet geïnstalleerd."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"App is niet beschikbaar"</string>
diff --git a/res/values-or/strings.xml b/res/values-or/strings.xml
index 25c9e00..ca243d4 100644
--- a/res/values-or/strings.xml
+++ b/res/values-or/strings.xml
@@ -20,8 +20,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"ଲଞ୍ଚର୍3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
-    <string name="work_folder_name" msgid="3753320833950115786">"ୱାର୍କ"</string>
+    <string name="work_folder_name" msgid="3753320833950115786">"କାମ"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"ଆପ୍‌ ଇନଷ୍ଟଲ୍‌ ହୋଇନାହିଁ"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"ଆପ୍‌ ଉପଲବ୍ଧ ନାହିଁ"</string>
     <string name="safemode_shortcut_error" msgid="9160126848219158407">"ନିରାପଦ ମୋଡରେ ଡାଉନଲୋଡ୍‌ ହେଇଥିବା ଆପ୍‌ ଅକ୍ଷମ କରାଗଲା"</string>
@@ -83,7 +82,7 @@
     <string name="styles_wallpaper_button_text" msgid="4342122323125579619">"ଷ୍ଟାଇଲ୍ ଏବଂ ୱାଲ୍‍‍ପେପର୍"</string>
     <string name="settings_button_text" msgid="8873672322605444408">"ହୋମ୍‌ ସେଟିଂସ୍"</string>
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"ଆପଣଙ୍କ ଆଡମିନଙ୍କ ଦ୍ୱାରା ଅକ୍ଷମ କରାଯାଇଛି"</string>
-    <string name="allow_rotation_title" msgid="7728578836261442095">"ହୋମ୍‌ ସ୍କ୍ରିନ୍ ବୁଲାଇବାକୁ ଅନୁମତି ଦିଅନ୍ତୁ"</string>
+    <string name="allow_rotation_title" msgid="7728578836261442095">"ହୋମ୍‌ ସ୍କ୍ରୀନ୍ ବୁଲାଇବା ଅନୁମତି ଦିଅନ୍ତୁ"</string>
     <string name="allow_rotation_desc" msgid="8662546029078692509">"ଯେତେବେଳେ ଫୋନକୁ ବୁଲାଯାଇଥାଏ"</string>
     <string name="notification_dots_title" msgid="9062440428204120317">"ବିଜ୍ଞପ୍ତି ଡଟ୍ସ"</string>
     <string name="notification_dots_desc_on" msgid="1679848116452218908">"ଚାଲୁ"</string>
@@ -131,7 +130,7 @@
     <string name="action_dismiss_notification" msgid="5909461085055959187">"ଖାରଜ କରନ୍ତୁ"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"ବିଜ୍ଞପ୍ତି ଖାରଜ କରାଗଲା"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"ବ୍ୟକ୍ତିଗତ"</string>
-    <string name="all_apps_work_tab" msgid="4884822796154055118">"ୱାର୍କ"</string>
+    <string name="all_apps_work_tab" msgid="4884822796154055118">"କାମ"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"ୱର୍କ ପ୍ରୋଫାଇଲ୍‌"</string>
     <string name="bottom_work_tab_user_education_title" msgid="5785851780786322825">"ଏଠାରେ କାମ ଆପ୍‌ ଖୋଜନ୍ତୁ"</string>
     <string name="bottom_work_tab_user_education_body" msgid="2818107472360579152">"ପ୍ରତ୍ୟେକ କାଯ୍ୟକାରୀ ଆପ୍‌ର ଗୋଟିଏ ବ୍ୟାଜ୍ (ଚିହ୍ନ) ଅଛି, ଯାହାକୁ ଆପଣଙ୍କ ସଂସ୍ଥା ସୁରକ୍ଷିତ ରଖିଥାଏ। ସହଜରେ ଆକ୍ସେସ୍ କରିବା ପାଇଁ ଆପ୍‌କୁ ହୋମ୍ ସ୍କ୍ରୀନ୍ ଉପରକୁ ଆଣନ୍ତୁ।"</string>
diff --git a/res/values-pa/strings.xml b/res/values-pa/strings.xml
index f4a3922..bda16d7 100644
--- a/res/values-pa/strings.xml
+++ b/res/values-pa/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"ਕਾਰਜ-ਸਥਾਨ"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"ਐਪ ਇੰਸਟੌਲ ਨਹੀਂ ਕੀਤਾ ਹੋਇਆ ਹੈ।"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"ਐਪ ਉਪਲਬਧ ਨਹੀਂ ਹੈ"</string>
@@ -83,8 +82,8 @@
     <string name="styles_wallpaper_button_text" msgid="4342122323125579619">"ਸ਼ੈਲੀਆਂ ਅਤੇ ਵਾਲਪੇਪਰ"</string>
     <string name="settings_button_text" msgid="8873672322605444408">"ਹੋਮ ਸੈਟਿੰਗਾਂ"</string>
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"ਤੁਹਾਡੇ ਪ੍ਰਸ਼ਾਸਕ ਦੁਆਰਾ ਅਯੋਗ ਬਣਾਈ ਗਈ"</string>
-    <string name="allow_rotation_title" msgid="7728578836261442095">"ਹੋਮ ਸਕ੍ਰੀਨ ਨੂੰ ਘੁਮਾਉਣ ਦੀ ਆਗਿਆ ਦਿਓ"</string>
-    <string name="allow_rotation_desc" msgid="8662546029078692509">"ਜਦੋਂ ਫ਼ੋਨ ਘੁਮਾਇਆ ਜਾਂਦਾ ਹੈ"</string>
+    <string name="allow_rotation_title" msgid="7728578836261442095">"ਹੋਮ ਸਕ੍ਰੀਨ ਨੂੰ ਘੁੰਮਾਉਣ ਦੀ ਆਗਿਆ ਦਿਓ"</string>
+    <string name="allow_rotation_desc" msgid="8662546029078692509">"ਜਦੋਂ ਫ਼ੋਨ ਘੁੰਮਾਇਆ ਜਾਂਦਾ ਹੈ"</string>
     <string name="notification_dots_title" msgid="9062440428204120317">"ਸੂਚਨਾ ਬਿੰਦੂ"</string>
     <string name="notification_dots_desc_on" msgid="1679848116452218908">"ਚਾਲੂ"</string>
     <string name="notification_dots_desc_off" msgid="1760796511504341095">"ਬੰਦ"</string>
diff --git a/res/values-pl/strings.xml b/res/values-pl/strings.xml
index 063e0dc..d49688f 100644
--- a/res/values-pl/strings.xml
+++ b/res/values-pl/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Praca"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Aplikacja nie jest zainstalowana."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Aplikacja niedostępna"</string>
@@ -83,7 +82,7 @@
     <string name="widget_button_text" msgid="2880537293434387943">"Widżety"</string>
     <string name="wallpaper_button_text" msgid="8404103075899945851">"Tapety"</string>
     <string name="styles_wallpaper_button_text" msgid="4342122323125579619">"Style i tapety"</string>
-    <string name="settings_button_text" msgid="8873672322605444408">"Ustawienia ekranu głównego"</string>
+    <string name="settings_button_text" msgid="8873672322605444408">"Ustawienia strony głównej"</string>
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"Funkcja wyłączona przez administratora"</string>
     <string name="allow_rotation_title" msgid="7728578836261442095">"Zezwalaj na obrót ekranu głównego"</string>
     <string name="allow_rotation_desc" msgid="8662546029078692509">"Po obróceniu telefonu"</string>
@@ -133,7 +132,7 @@
     <string name="action_dismiss_notification" msgid="5909461085055959187">"Zamknij"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"Powiadomienie odrzucone"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"Osobiste"</string>
-    <string name="all_apps_work_tab" msgid="4884822796154055118">"Służbowe"</string>
+    <string name="all_apps_work_tab" msgid="4884822796154055118">"Do pracy"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"Profil do pracy"</string>
     <string name="bottom_work_tab_user_education_title" msgid="5785851780786322825">"Aplikacje do pracy"</string>
     <string name="bottom_work_tab_user_education_body" msgid="2818107472360579152">"Każda aplikacja do pracy ma plakietkę, a o jej bezpieczeństwo dba Twoja organizacja. Aplikacje można przenieść na ekran główny, by były łatwiej dostępne."</string>
diff --git a/res/values-pt-rPT/strings.xml b/res/values-pt-rPT/strings.xml
index a464a80..9c664b3 100644
--- a/res/values-pt-rPT/strings.xml
+++ b/res/values-pt-rPT/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Trabalho"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"A app não está instalada."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"A app não está disponível"</string>
diff --git a/res/values-pt/strings.xml b/res/values-pt/strings.xml
index a982ece..7018142 100644
--- a/res/values-pt/strings.xml
+++ b/res/values-pt/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Tela de início 3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Trabalho"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"O app não está instalado."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"O app não está disponível"</string>
diff --git a/res/values-ro/strings.xml b/res/values-ro/strings.xml
index 1251d7e..f8a61f1 100644
--- a/res/values-ro/strings.xml
+++ b/res/values-ro/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Work"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Aplicația nu este instalată."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Aplicația nu este disponibilă"</string>
diff --git a/res/values-ru/strings.xml b/res/values-ru/strings.xml
index 3e9314e..1cc699f 100644
--- a/res/values-ru/strings.xml
+++ b/res/values-ru/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Работа"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Приложение удалено"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Приложение недоступно"</string>
@@ -86,7 +85,7 @@
     <string name="settings_button_text" msgid="8873672322605444408">"Главный экран"</string>
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"Функция отключена администратором"</string>
     <string name="allow_rotation_title" msgid="7728578836261442095">"Разрешить поворачивать главный экран"</string>
-    <string name="allow_rotation_desc" msgid="8662546029078692509">"При повороте телефона"</string>
+    <string name="allow_rotation_desc" msgid="8662546029078692509">"Когда телефон повернут"</string>
     <string name="notification_dots_title" msgid="9062440428204120317">"Значки уведомлений"</string>
     <string name="notification_dots_desc_on" msgid="1679848116452218908">"Включены"</string>
     <string name="notification_dots_desc_off" msgid="1760796511504341095">"Отключены"</string>
diff --git a/res/values-si/strings.xml b/res/values-si/strings.xml
index ef99a59..2f9dc42 100644
--- a/res/values-si/strings.xml
+++ b/res/values-si/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"කාර්යාලය"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"යෙදුම ස්ථාපනය කර නැත."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"යෙදුම නොතිබේ"</string>
diff --git a/res/values-sk/strings.xml b/res/values-sk/strings.xml
index 340a128..5bbf7c3 100644
--- a/res/values-sk/strings.xml
+++ b/res/values-sk/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Pracovné"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Aplikácia nie je nainštalovaná."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Aplikácia nie je k dispozícii"</string>
diff --git a/res/values-sl/strings.xml b/res/values-sl/strings.xml
index 17ee6cb..b1c9f10 100644
--- a/res/values-sl/strings.xml
+++ b/res/values-sl/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Služba"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Aplikacija ni nameščena."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Aplikacija ni na voljo"</string>
@@ -133,7 +132,7 @@
     <string name="action_dismiss_notification" msgid="5909461085055959187">"Opusti"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"Obvestilo je bilo opuščeno"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"Osebno"</string>
-    <string name="all_apps_work_tab" msgid="4884822796154055118">"Delo"</string>
+    <string name="all_apps_work_tab" msgid="4884822796154055118">"Služba"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"Delovni profil"</string>
     <string name="bottom_work_tab_user_education_title" msgid="5785851780786322825">"Tukaj poiščite delovne aplikacije"</string>
     <string name="bottom_work_tab_user_education_body" msgid="2818107472360579152">"Vsaka delovna aplikacija ima značko. Za varnost teh aplikacij skrbi vaša organizacija. Za preprostejši dostop premaknite aplikacije na začetni zaslon."</string>
diff --git a/res/values-sq/strings.xml b/res/values-sq/strings.xml
index 1140599..7f2567c 100644
--- a/res/values-sq/strings.xml
+++ b/res/values-sq/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Nisësi3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Puna"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Aplikacioni nuk është i instaluar."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Aplikacioni nuk mundësohet"</string>
@@ -81,7 +80,7 @@
     <string name="widget_button_text" msgid="2880537293434387943">"Miniaplikacionet"</string>
     <string name="wallpaper_button_text" msgid="8404103075899945851">"Imazhet e sfondit"</string>
     <string name="styles_wallpaper_button_text" msgid="4342122323125579619">"Stilet dhe imazhet e sfondit"</string>
-    <string name="settings_button_text" msgid="8873672322605444408">"Cilësimet e ekranit bazë"</string>
+    <string name="settings_button_text" msgid="8873672322605444408">"Cilësimet e Home"</string>
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"Çaktivizuar nga administratori"</string>
     <string name="allow_rotation_title" msgid="7728578836261442095">"Lejo rrotullimin e ekranit kryesor"</string>
     <string name="allow_rotation_desc" msgid="8662546029078692509">"Kur telefoni rrotullohet"</string>
diff --git a/res/values-sr/strings.xml b/res/values-sr/strings.xml
index ec58212..05117f6 100644
--- a/res/values-sr/strings.xml
+++ b/res/values-sr/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Work"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Апликација није инсталирана."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Апликација није доступна"</string>
diff --git a/res/values-sv/strings.xml b/res/values-sv/strings.xml
index e7400a6..7df507b 100644
--- a/res/values-sv/strings.xml
+++ b/res/values-sv/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Arbete"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Appen är inte installerad."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Appen är inte tillgänglig"</string>
diff --git a/res/values-sw/strings.xml b/res/values-sw/strings.xml
index 643ae51..445e382 100644
--- a/res/values-sw/strings.xml
+++ b/res/values-sw/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Kazini"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Programu haijasakinishwa."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Programu haipatikani"</string>
@@ -70,7 +69,9 @@
       <item quantity="one"><xliff:g id="APP_NAME_0">%1$s</xliff:g>, ina arifa <xliff:g id="NOTIFICATION_COUNT_1">%2$d</xliff:g></item>
     </plurals>
     <string name="default_scroll_format" msgid="7475544710230993317">"Ukurasa%1$d wa %2$d"</string>
-    <string name="workspace_scroll_format" msgid="8458889198184077399">"Skrini ya mwanzo %1$d ya %2$d"</string>
+    <!-- String.format failed for translation -->
+    <!-- no translation found for workspace_scroll_format (8458889198184077399) -->
+    <skip />
     <string name="workspace_new_page" msgid="257366611030256142">"Ukurasa mpya wa skrini ya kwanza"</string>
     <string name="folder_opened" msgid="94695026776264709">"Folda imefunguliwa, <xliff:g id="WIDTH">%1$d</xliff:g> kwa <xliff:g id="HEIGHT">%2$d</xliff:g>"</string>
     <string name="folder_tap_to_close" msgid="4625795376335528256">"Gusa ili ufunge folda"</string>
diff --git a/res/values-ta/strings.xml b/res/values-ta/strings.xml
index e3efdeb..019fa1d 100644
--- a/res/values-ta/strings.xml
+++ b/res/values-ta/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"பணியிடம்"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"ஆப்ஸ் நிறுவப்படவில்லை."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"ஆப்ஸ் இல்லை"</string>
diff --git a/res/values-te/strings.xml b/res/values-te/strings.xml
index 0d99e2b..1f8d3b8 100644
--- a/res/values-te/strings.xml
+++ b/res/values-te/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"కార్యాలయం"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"యాప్ ఇన్‌స్టాల్ చేయబడలేదు."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"యాప్ అందుబాటులో లేదు"</string>
diff --git a/res/values-th/strings.xml b/res/values-th/strings.xml
index 03c02ad..5ab9b86 100644
--- a/res/values-th/strings.xml
+++ b/res/values-th/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"งาน"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"ไม่ได้ติดตั้งแอป"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"แอปไม่พร้อมใช้งาน"</string>
diff --git a/res/values-tl/strings.xml b/res/values-tl/strings.xml
index 0df94c7..de4863a 100644
--- a/res/values-tl/strings.xml
+++ b/res/values-tl/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Trabaho"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Hindi naka-install ang app."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Hindi available ang app"</string>
diff --git a/res/values-tr/strings.xml b/res/values-tr/strings.xml
index 56f8447..1b2b3d1 100644
--- a/res/values-tr/strings.xml
+++ b/res/values-tr/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"İş"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Uygulama yüklü değil."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Uygulama kullanılamıyor"</string>
diff --git a/res/values-uk/strings.xml b/res/values-uk/strings.xml
index 13ba701..622cdcc 100644
--- a/res/values-uk/strings.xml
+++ b/res/values-uk/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Робоча папка"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Додаток видалено."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Додаток недоступний"</string>
diff --git a/res/values-ur/strings.xml b/res/values-ur/strings.xml
index 4f77670..74b5eaa 100644
--- a/res/values-ur/strings.xml
+++ b/res/values-ur/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"دفتری"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"ایپ انسٹال نہیں ہے۔"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"ایپ دستیاب نہیں ہے"</string>
diff --git a/res/values-uz/strings.xml b/res/values-uz/strings.xml
index 0afc788..be6cba7 100644
--- a/res/values-uz/strings.xml
+++ b/res/values-uz/strings.xml
@@ -20,8 +20,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
-    <string name="work_folder_name" msgid="3753320833950115786">"Ish"</string>
+    <string name="work_folder_name" msgid="3753320833950115786">"Ishga oid"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Ilova o‘rnatilmadi."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Ilova mavjud emas"</string>
     <string name="safemode_shortcut_error" msgid="9160126848219158407">"Yuklab olingan ilova xavfsiz rejimda o‘chirib qo‘yildi"</string>
diff --git a/res/values-vi/strings.xml b/res/values-vi/strings.xml
index 866e269..a0a122a 100644
--- a/res/values-vi/strings.xml
+++ b/res/values-vi/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Trình chạy 3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Work"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Ứng dụng chưa được cài đặt."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Ứng dụng không có sẵn"</string>
@@ -131,7 +130,7 @@
     <string name="action_dismiss_notification" msgid="5909461085055959187">"Loại bỏ"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"Đã loại bỏ thông báo"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"Cá nhân"</string>
-    <string name="all_apps_work_tab" msgid="4884822796154055118">"Công việc"</string>
+    <string name="all_apps_work_tab" msgid="4884822796154055118">"Cơ quan"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"Hồ sơ công việc"</string>
     <string name="bottom_work_tab_user_education_title" msgid="5785851780786322825">"Tìm ứng dụng công việc tại đây"</string>
     <string name="bottom_work_tab_user_education_body" msgid="2818107472360579152">"Mỗi ứng dụng công việc đều có một huy hiệu và được tổ chức của bạn bảo mật. Bạn có thể di chuyển ứng dụng đến Màn hình chính để truy cập dễ dàng hơn."</string>
diff --git a/res/values-zh-rCN/strings.xml b/res/values-zh-rCN/strings.xml
index 9804af1..0478627 100644
--- a/res/values-zh-rCN/strings.xml
+++ b/res/values-zh-rCN/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Work"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"未安装该应用。"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"应用不可用"</string>
diff --git a/res/values-zh-rHK/strings.xml b/res/values-zh-rHK/strings.xml
index 2c38915..ed53c32 100644
--- a/res/values-zh-rHK/strings.xml
+++ b/res/values-zh-rHK/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"工作"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"尚未安裝應用程式。"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"目前無法使用這個應用程式"</string>
@@ -93,7 +92,7 @@
     <string name="title_change_settings" msgid="1376365968844349552">"變更設定"</string>
     <string name="notification_dots_service_title" msgid="4284221181793592871">"顯示通知圓點"</string>
     <string name="auto_add_shortcuts_label" msgid="8222286205987725611">"將圖示加到主畫面"</string>
-    <string name="auto_add_shortcuts_description" msgid="7117251166066978730">"新安裝的應用程式"</string>
+    <string name="auto_add_shortcuts_description" msgid="7117251166066978730">"適用於新安裝的應用程式"</string>
     <string name="package_state_unknown" msgid="7592128424511031410">"不明"</string>
     <string name="abandoned_clean_this" msgid="7610119707847920412">"移除"</string>
     <string name="abandoned_search" msgid="891119232568284442">"搜尋"</string>
@@ -131,7 +130,7 @@
     <string name="action_dismiss_notification" msgid="5909461085055959187">"關閉"</string>
     <string name="notification_dismissed" msgid="6002233469409822874">"關閉咗通知"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"個人"</string>
-    <string name="all_apps_work_tab" msgid="4884822796154055118">"工作"</string>
+    <string name="all_apps_work_tab" msgid="4884822796154055118">"商務"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"工作設定檔"</string>
     <string name="bottom_work_tab_user_education_title" msgid="5785851780786322825">"請在此處尋找工作應用程式"</string>
     <string name="bottom_work_tab_user_education_body" msgid="2818107472360579152">"每個工作應用程式都有一個徽章，並由您的機構負責保持安全。您可以將工作應用程式移至主畫面，以便輕鬆存取。"</string>
diff --git a/res/values-zh-rTW/strings.xml b/res/values-zh-rTW/strings.xml
index 503a59b..10d4d44 100644
--- a/res/values-zh-rTW/strings.xml
+++ b/res/values-zh-rTW/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Launcher3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"公司"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"應用程式未安裝。"</string>
     <string name="activity_not_available" msgid="7456344436509528827">"應用程式目前無法使用"</string>
diff --git a/res/values-zu/strings.xml b/res/values-zu/strings.xml
index 83178fe..b937764 100644
--- a/res/values-zu/strings.xml
+++ b/res/values-zu/strings.xml
@@ -20,7 +20,6 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name" msgid="649227358658669779">"Isiqalisi3"</string>
-    <string name="folder_name" msgid="7371454440695724752"></string>
     <string name="work_folder_name" msgid="3753320833950115786">"Umsebenzi"</string>
     <string name="activity_not_found" msgid="8071924732094499514">"Uhlelo lokusebenza alufakiwe."</string>
     <string name="activity_not_available" msgid="7456344436509528827">"Uhlelo lokusebenza alutholakali"</string>
diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index 69b8c8a..de17eb7 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -115,7 +115,6 @@
         <attr name="numFolderColumns" format="integer" />
         <!-- numHotseatIcons defaults to numColumns, if not specified -->
         <attr name="numHotseatIcons" format="integer" />
-
         <attr name="defaultLayoutId" format="reference" />
         <attr name="demoModeLayoutId" format="reference" />
     </declare-styleable>
@@ -152,21 +151,6 @@
         <attr name="canThumbDetach" format="boolean" />
     </declare-styleable>
 
-    <declare-styleable name="CustomAppWidgetProviderInfo">
-        <attr name="providerId" format="integer" />
-
-        <attr name="android:label" />
-        <attr name="android:initialLayout" />
-        <attr name="android:icon" />
-        <attr name="android:previewImage" />
-        <attr name="android:resizeMode" />
-
-        <attr name="numRows" />
-        <attr name="numColumns" />
-        <attr name="numMinRows" format="integer" />
-        <attr name="numMinColumns" format="integer" />
-    </declare-styleable>
-
     <declare-styleable name="PreviewFragment">
         <attr name="android:name" />
         <attr name="android:id" />
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 13e096c..9d9c2e8 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -23,8 +23,6 @@
 
     <!-- Application name -->
     <string name="app_name">Launcher3</string>
-    <!-- Default folder name -->
-    <string name="folder_name"></string>
     <!-- Work folder name -->
     <string name="work_folder_name">Work</string>
     <!-- Displayed when user selects a shortcut for an app that was uninstalled [CHAR_LIMIT=none]-->
@@ -105,6 +103,9 @@
     <!-- Label for install drop target. [CHAR_LIMIT=20] -->
     <string name="install_drop_target_label">Install</string>
 
+    <!-- Label for install dismiss prediction. -->
+    <string translatable="false" name="dismiss_prediction_label">Dismiss prediction</string>
+
     <!-- Permissions: -->
     <skip />
     <!-- Permission short label -->
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 339aef5..80c791c 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -130,6 +130,10 @@
         <item name="widgetsTheme">@style/WidgetContainerTheme</item>
     </style>
 
+    <style name="HomeSettingsTheme" parent="@android:style/Theme.DeviceDefault.Settings">
+        <item name="android:navigationBarColor">@android:color/transparent</item>
+    </style>
+
     <!--
     Theme overrides to element on homescreen, i.e., which are drawn on top on wallpaper.
     Various foreground colors are overridden to be workspaceTextColor so that they are properly
diff --git a/res/xml/custom_widgets.xml b/res/xml/custom_widgets.xml
deleted file mode 100644
index 4b54386..0000000
--- a/res/xml/custom_widgets.xml
+++ /dev/null
@@ -1,31 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-     Copyright (C) 2017 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-<widgets>
-    <!-- Sample widget definition
-        <widget
-            android:label="My custom widget"
-            android:initialLayout="@layout/sample_widget_layout"
-            android:icon="@drawable/ic_launcher_home"
-            android:resizeMode="horizontal|vertical"
-            launcher:numRows="2"
-            launcher:numColumns="3"
-            launcher:numMinRows="1"
-            launcher:numMinColumns="2"
-            launcher:providerId="1" />
-    -->
-</widgets>
\ No newline at end of file
diff --git a/robolectric_tests/src/com/android/launcher3/model/BaseModelUpdateTaskTestCase.java b/robolectric_tests/src/com/android/launcher3/model/BaseModelUpdateTaskTestCase.java
index ab39274..bc936b7 100644
--- a/robolectric_tests/src/com/android/launcher3/model/BaseModelUpdateTaskTestCase.java
+++ b/robolectric_tests/src/com/android/launcher3/model/BaseModelUpdateTaskTestCase.java
@@ -15,14 +15,13 @@
 import android.os.Process;
 import android.os.UserHandle;
 
-import com.android.launcher3.AllAppsList;
 import com.android.launcher3.AppFilter;
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherModel;
-import com.android.launcher3.LauncherModel.Callbacks;
+import com.android.launcher3.model.BgDataModel.Callbacks;
 import com.android.launcher3.LauncherModel.ModelUpdateTask;
 import com.android.launcher3.LauncherProvider;
 import com.android.launcher3.icons.IconCache;
diff --git a/robolectric_tests/src/com/android/launcher3/util/IntArrayTest.java b/robolectric_tests/src/com/android/launcher3/util/IntArrayTest.java
new file mode 100644
index 0000000..c08e198
--- /dev/null
+++ b/robolectric_tests/src/com/android/launcher3/util/IntArrayTest.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.util;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+
+/**
+ * Robolectric unit tests for {@link IntArray}
+ */
+@RunWith(RobolectricTestRunner.class)
+public class IntArrayTest {
+
+    @Test
+    public void concatAndParseString() {
+        int[] array = new int[] {0, 2, 3, 9};
+        String concat = IntArray.wrap(array).toConcatString();
+
+        int[] parsed = IntArray.fromConcatString(concat).toArray();
+        assertThat(array).isEqualTo(parsed);
+    }
+}
diff --git a/robolectric_tests/src/com/android/launcher3/util/IntSetTest.java b/robolectric_tests/src/com/android/launcher3/util/IntSetTest.java
index f846de5..8513353 100644
--- a/robolectric_tests/src/com/android/launcher3/util/IntSetTest.java
+++ b/robolectric_tests/src/com/android/launcher3/util/IntSetTest.java
@@ -21,7 +21,6 @@
 import org.junit.runner.RunWith;
 
 import org.robolectric.RobolectricTestRunner;
-import org.robolectric.annotation.Config;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
diff --git a/src/com/android/launcher3/AbstractFloatingView.java b/src/com/android/launcher3/AbstractFloatingView.java
index 65f9d6b..af2cdc3 100644
--- a/src/com/android/launcher3/AbstractFloatingView.java
+++ b/src/com/android/launcher3/AbstractFloatingView.java
@@ -16,7 +16,6 @@
 
 package com.android.launcher3;
 
-import static android.view.accessibility.AccessibilityEvent.TYPE_VIEW_FOCUSED;
 import static android.view.accessibility.AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED;
 import static android.view.accessibility.AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED;
 
@@ -30,6 +29,7 @@
 import android.util.Pair;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.accessibility.AccessibilityNodeInfo;
 import android.widget.LinearLayout;
 
 import androidx.annotation.IntDef;
@@ -86,7 +86,7 @@
 
     // Type of popups which should be kept open during launcher rebind
     public static final int TYPE_REBIND_SAFE = TYPE_WIDGETS_FULL_SHEET
-            | TYPE_ON_BOARD_POPUP | TYPE_DISCOVERY_BOUNCE;
+            | TYPE_WIDGETS_BOTTOM_SHEET | TYPE_ON_BOARD_POPUP | TYPE_DISCOVERY_BOUNCE;
 
     // Usually we show the back button when a floating view is open. Instead, hide for these types.
     public static final int TYPE_HIDE_BACK_BUTTON = TYPE_ON_BOARD_POPUP | TYPE_DISCOVERY_BOUNCE
@@ -171,7 +171,7 @@
                 targetInfo.first, TYPE_WINDOW_STATE_CHANGED, targetInfo.second);
 
         if (mIsOpen) {
-            sendAccessibilityEvent(TYPE_VIEW_FOCUSED);
+            performAccessibilityAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS, null);
         }
         ActivityContext.lookupContext(getContext()).getDragLayer()
                 .sendAccessibilityEvent(TYPE_WINDOW_CONTENT_CHANGED);
diff --git a/src/com/android/launcher3/AppInfo.java b/src/com/android/launcher3/AppInfo.java
index d884049..c8e7619 100644
--- a/src/com/android/launcher3/AppInfo.java
+++ b/src/com/android/launcher3/AppInfo.java
@@ -29,11 +29,19 @@
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.PackageManagerHelper;
 
+import java.util.Comparator;
+
 /**
  * Represents an app in AllAppsView.
  */
 public class AppInfo extends ItemInfoWithIcon {
 
+    public static AppInfo[] EMPTY_ARRAY = new AppInfo[0];
+    public static Comparator<AppInfo> COMPONENT_KEY_COMPARATOR = (a, b) -> {
+        int uc = a.user.hashCode() - b.user.hashCode();
+        return uc != 0 ? uc : a.componentName.compareTo(b.componentName);
+    };
+
     /**
      * The intent used to start the application.
      */
@@ -41,6 +49,9 @@
 
     public ComponentName componentName;
 
+    // Section name used for indexing.
+    public String sectionName = "";
+
     public AppInfo() {
         itemType = LauncherSettings.Favorites.ITEM_TYPE_APPLICATION;
     }
@@ -74,6 +85,8 @@
         componentName = info.componentName;
         title = Utilities.trim(info.title);
         intent = new Intent(info.intent);
+        user = info.user;
+        runtimeStatusFlags = info.runtimeStatusFlags;
     }
 
     @Override
@@ -116,4 +129,9 @@
             info.runtimeStatusFlags |= FLAG_ADAPTIVE_ICON;
         }
     }
+
+    @Override
+    public AppInfo clone() {
+        return new AppInfo(this);
+    }
 }
diff --git a/src/com/android/launcher3/AutoInstallsLayout.java b/src/com/android/launcher3/AutoInstallsLayout.java
index 9724869..ac43967 100644
--- a/src/com/android/launcher3/AutoInstallsLayout.java
+++ b/src/com/android/launcher3/AutoInstallsLayout.java
@@ -38,11 +38,15 @@
 import android.util.Patterns;
 import android.util.Xml;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.LauncherProvider.SqlArguments;
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.icons.GraphicsUtils;
 import com.android.launcher3.icons.LauncherIcons;
+import com.android.launcher3.qsb.QsbContainerView;
 import com.android.launcher3.util.IntArray;
+import com.android.launcher3.util.PackageManagerHelper;
 import com.android.launcher3.util.Thunk;
 
 import org.xmlpull.v1.XmlPullParser;
@@ -72,7 +76,7 @@
 
     static AutoInstallsLayout get(Context context, AppWidgetHost appWidgetHost,
             LayoutParserCallback callback) {
-        Pair<String, Resources> customizationApkInfo = Utilities.findSystemApk(
+        Pair<String, Resources> customizationApkInfo = PackageManagerHelper.findSystemApk(
                 ACTION_LAUNCHER_CUSTOMIZATION, context.getPackageManager());
         if (customizationApkInfo == null) {
             return null;
@@ -83,7 +87,7 @@
 
         // Try with grid size and hotseat count
         String layoutName = String.format(Locale.ENGLISH, FORMATTED_LAYOUT_RES_WITH_HOSTEAT,
-            grid.numColumns, grid.numRows, grid.numHotseatIcons);
+                grid.numColumns, grid.numRows, grid.numHotseatIcons);
         int layoutId = targetRes.getIdentifier(layoutName, "xml", pkg);
 
         // Try with only grid size
@@ -91,7 +95,7 @@
             Log.d(TAG, "Formatted layout: " + layoutName
                     + " not found. Trying layout without hosteat");
             layoutName = String.format(Locale.ENGLISH, FORMATTED_LAYOUT_RES,
-                grid.numColumns, grid.numRows);
+                    grid.numColumns, grid.numRows);
             layoutId = targetRes.getIdentifier(layoutName, "xml", pkg);
         }
 
@@ -116,6 +120,7 @@
     private static final String TAG_AUTO_INSTALL = "autoinstall";
     private static final String TAG_FOLDER = "folder";
     private static final String TAG_APPWIDGET = "appwidget";
+    protected static final String TAG_SEARCH_WIDGET = "searchwidget";
     private static final String TAG_SHORTCUT = "shortcut";
     private static final String TAG_EXTRA = "extra";
 
@@ -147,8 +152,10 @@
     private static final String HOTSEAT_CONTAINER_NAME =
             Favorites.containerToString(Favorites.CONTAINER_HOTSEAT);
 
-    @Thunk final Context mContext;
-    @Thunk final AppWidgetHost mAppWidgetHost;
+    @Thunk
+    final Context mContext;
+    @Thunk
+    final AppWidgetHost mAppWidgetHost;
     protected final LayoutParserCallback mCallback;
 
     protected final PackageManager mPackageManager;
@@ -160,7 +167,8 @@
     private final int mColumnCount;
 
     private final int[] mTemp = new int[2];
-    @Thunk final ContentValues mValues;
+    @Thunk
+    final ContentValues mValues;
     protected final String mRootTag;
 
     protected SQLiteDatabase mDb;
@@ -244,7 +252,7 @@
      */
     protected int parseAndAddNode(
             XmlPullParser parser, ArrayMap<String, TagParser> tagParserMap, IntArray screenIds)
-        throws XmlPullParserException, IOException {
+            throws XmlPullParserException, IOException {
 
         if (TAG_INCLUDE.equals(parser.getName())) {
             final int resId = getAttributeResourceValue(parser, ATTR_WORKSPACE, 0);
@@ -315,6 +323,7 @@
         parsers.put(TAG_AUTO_INSTALL, new AutoInstallParser());
         parsers.put(TAG_FOLDER, new FolderParser());
         parsers.put(TAG_APPWIDGET, new PendingWidgetParser());
+        parsers.put(TAG_SEARCH_WIDGET, new SearchWidgetParser());
         parsers.put(TAG_SHORTCUT, new ShortcutParser(mSourceRes));
         return parsers;
     }
@@ -347,15 +356,15 @@
                         info = mPackageManager.getActivityInfo(cn, 0);
                     } catch (PackageManager.NameNotFoundException nnfe) {
                         String[] packages = mPackageManager.currentToCanonicalPackageNames(
-                                new String[] { packageName });
+                                new String[]{packageName});
                         cn = new ComponentName(packages[0], className);
                         info = mPackageManager.getActivityInfo(cn, 0);
                     }
                     final Intent intent = new Intent(Intent.ACTION_MAIN, null)
-                        .addCategory(Intent.CATEGORY_LAUNCHER)
-                        .setComponent(cn)
-                        .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
-                                Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
+                            .addCategory(Intent.CATEGORY_LAUNCHER)
+                            .setComponent(cn)
+                            .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
+                                    | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
 
                     return addShortcut(info.loadLabel(mPackageManager).toString(),
                             intent, Favorites.ITEM_TYPE_APPLICATION);
@@ -393,10 +402,10 @@
 
             mValues.put(Favorites.RESTORED, WorkspaceItemInfo.FLAG_AUTOINSTALL_ICON);
             final Intent intent = new Intent(Intent.ACTION_MAIN, null)
-                .addCategory(Intent.CATEGORY_LAUNCHER)
-                .setComponent(new ComponentName(packageName, className))
-                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
-                        Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
+                    .addCategory(Intent.CATEGORY_LAUNCHER)
+                    .setComponent(new ComponentName(packageName, className))
+                    .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
+                            | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
             return addShortcut(mContext.getString(R.string.package_state_unknown), intent,
                     Favorites.ITEM_TYPE_APPLICATION);
         }
@@ -444,7 +453,7 @@
             mValues.put(Favorites.ICON_RESOURCE, mIconRes.getResourceName(iconId));
 
             intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
-                        Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
+                    Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
             return addShortcut(mSourceRes.getString(titleResId),
                     intent, Favorites.ITEM_TYPE_SHORTCUT);
         }
@@ -469,12 +478,22 @@
      */
     protected class PendingWidgetParser implements TagParser {
 
-        @Override
-        public int parseAndAdd(XmlPullParser parser)
-                throws XmlPullParserException, IOException {
+        @Nullable
+        public ComponentName getComponentName(XmlPullParser parser) {
             final String packageName = getAttributeValue(parser, ATTR_PACKAGE_NAME);
             final String className = getAttributeValue(parser, ATTR_CLASS_NAME);
             if (TextUtils.isEmpty(packageName) || TextUtils.isEmpty(className)) {
+                return null;
+            }
+            return new ComponentName(packageName, className);
+        }
+
+
+        @Override
+        public int parseAndAdd(XmlPullParser parser)
+                throws XmlPullParserException, IOException {
+            ComponentName cn = getComponentName(parser);
+            if (cn == null) {
                 if (LOGD) Log.d(TAG, "Skipping invalid <appwidget> with no component");
                 return -1;
             }
@@ -505,16 +524,15 @@
                     throw new RuntimeException("Widgets can contain only extras");
                 }
             }
-
-            return verifyAndInsert(new ComponentName(packageName, className), extras);
+            return verifyAndInsert(cn, extras);
         }
 
         protected int verifyAndInsert(ComponentName cn, Bundle extras) {
             mValues.put(Favorites.APPWIDGET_PROVIDER, cn.flattenToString());
             mValues.put(Favorites.RESTORED,
-                    LauncherAppWidgetInfo.FLAG_ID_NOT_VALID |
-                            LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY |
-                            LauncherAppWidgetInfo.FLAG_DIRECT_CONFIG);
+                    LauncherAppWidgetInfo.FLAG_ID_NOT_VALID
+                            | LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY
+                            | LauncherAppWidgetInfo.FLAG_DIRECT_CONFIG);
             mValues.put(Favorites._ID, mCallback.generateNewItemId());
             if (!extras.isEmpty()) {
                 mValues.put(Favorites.INTENT, new Intent().putExtras(extras).toUri(0));
@@ -529,6 +547,23 @@
         }
     }
 
+    protected class SearchWidgetParser extends PendingWidgetParser {
+        @Override
+        @Nullable
+        public ComponentName getComponentName(XmlPullParser parser) {
+            return QsbContainerView.getSearchComponentName(mContext);
+        }
+
+        @Override
+        protected int verifyAndInsert(ComponentName cn, Bundle extras) {
+            mValues.put(Favorites.OPTIONS, LauncherAppWidgetInfo.OPTION_SEARCH_WIDGET);
+            int flags = mValues.getAsInteger(Favorites.RESTORED)
+                    | WorkspaceItemInfo.FLAG_RESTORE_STARTED;
+            mValues.put(Favorites.RESTORED, flags);
+            return super.verifyAndInsert(cn, extras);
+        }
+    }
+
     protected class FolderParser implements TagParser {
         private final ArrayMap<String, TagParser> mFolderElements;
 
@@ -548,7 +583,7 @@
             if (titleResId != 0) {
                 title = mSourceRes.getString(titleResId);
             } else {
-                title = mContext.getResources().getString(R.string.folder_name);
+                title = "";
             }
 
             mValues.put(Favorites.TITLE, title);
@@ -680,7 +715,8 @@
         int insertAndCheck(SQLiteDatabase db, ContentValues values);
     }
 
-    @Thunk static void copyInteger(ContentValues from, ContentValues to, String key) {
+    @Thunk
+    static void copyInteger(ContentValues from, ContentValues to, String key) {
         to.put(key, from.getAsInteger(key));
     }
 }
diff --git a/src/com/android/launcher3/BaseActivity.java b/src/com/android/launcher3/BaseActivity.java
index 6455056..b28077f 100644
--- a/src/com/android/launcher3/BaseActivity.java
+++ b/src/com/android/launcher3/BaseActivity.java
@@ -27,6 +27,8 @@
 import android.content.res.Configuration;
 import android.view.ContextThemeWrapper;
 
+import androidx.annotation.IntDef;
+
 import com.android.launcher3.DeviceProfile.OnDeviceProfileChangeListener;
 import com.android.launcher3.logging.StatsLogManager;
 import com.android.launcher3.logging.StatsLogUtils;
@@ -44,8 +46,6 @@
 import java.lang.annotation.Retention;
 import java.util.ArrayList;
 
-import androidx.annotation.IntDef;
-
 public abstract class BaseActivity extends Activity
         implements UserEventDelegate, LogStateProvider, ActivityContext {
 
@@ -265,12 +265,13 @@
         }
     }
 
-    protected void dumpMisc(PrintWriter writer) {
-        writer.println(" deviceProfile isTransposed=" + getDeviceProfile().isVerticalBarLayout());
-        writer.println(" orientation=" + getResources().getConfiguration().orientation);
-        writer.println(" mSystemUiController: " + mSystemUiController);
-        writer.println(" mActivityFlags: " + mActivityFlags);
-        writer.println(" mForceInvisible: " + mForceInvisible);
+    protected void dumpMisc(String prefix, PrintWriter writer) {
+        writer.println(prefix + "deviceProfile isTransposed="
+                + getDeviceProfile().isVerticalBarLayout());
+        writer.println(prefix + "orientation=" + getResources().getConfiguration().orientation);
+        writer.println(prefix + "mSystemUiController: " + mSystemUiController);
+        writer.println(prefix + "mActivityFlags: " + mActivityFlags);
+        writer.println(prefix + "mForceInvisible: " + mForceInvisible);
     }
 
     public static <T extends BaseActivity> T fromContext(Context context) {
diff --git a/src/com/android/launcher3/BaseDraggingActivity.java b/src/com/android/launcher3/BaseDraggingActivity.java
index f0b3afd..994ba65 100644
--- a/src/com/android/launcher3/BaseDraggingActivity.java
+++ b/src/com/android/launcher3/BaseDraggingActivity.java
@@ -30,17 +30,17 @@
 import android.view.View;
 import android.widget.Toast;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.model.AppLaunchTracker;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
-import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.uioverrides.DisplayRotationListener;
 import com.android.launcher3.uioverrides.WallpaperColorInfo;
+import com.android.launcher3.util.PackageManagerHelper;
 import com.android.launcher3.util.Themes;
 
-import androidx.annotation.Nullable;
-
 /**
  * Extension of BaseActivity allowing support for drag-n-drop
  */
@@ -120,6 +120,10 @@
 
     public abstract View getRootView();
 
+    public void returnToHomescreen() {
+        // no-op
+    }
+
     public Rect getViewBounds(View v) {
         int[] pos = new int[2];
         v.getLocationOnScreen(pos);
@@ -135,7 +139,7 @@
 
     public boolean startActivitySafely(View v, Intent intent, @Nullable ItemInfo item,
             @Nullable String sourceContainer) {
-        if (mIsSafeModeEnabled && !Utilities.isSystemApp(this, intent)) {
+        if (mIsSafeModeEnabled && !PackageManagerHelper.isSystemApp(this, intent)) {
             Toast.makeText(this, R.string.safemode_shortcut_error, Toast.LENGTH_SHORT).show();
             return false;
         }
@@ -237,14 +241,14 @@
     protected void onDeviceProfileInitiated() {
         if (mDeviceProfile.isVerticalBarLayout()) {
             mRotationListener.enable();
-            mDeviceProfile.updateIsSeascape(getWindowManager());
+            mDeviceProfile.updateIsSeascape(this);
         } else {
             mRotationListener.disable();
         }
     }
 
     private void onDeviceRotationChanged() {
-        if (mDeviceProfile.updateIsSeascape(getWindowManager())) {
+        if (mDeviceProfile.updateIsSeascape(this)) {
             reapplyUi();
         }
     }
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index b113249..7adb6a4 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -104,6 +104,8 @@
     private Drawable mIcon;
     private final boolean mCenterVertically;
 
+    private final int mDisplay;
+
     private final CheckLongPressHelper mLongPressHelper;
     private final StylusEventHelper mStylusEventHelper;
     private final float mSlop;
@@ -133,6 +135,9 @@
     @ViewDebug.ExportedProperty(category = "launcher")
     private boolean mDisableRelayout = false;
 
+    @ViewDebug.ExportedProperty(category = "launcher")
+    private final boolean mIgnorePaddingTouch;
+
     private IconLoadRequest mIconLoadRequest;
 
     public BubbleTextView(Context context) {
@@ -152,26 +157,32 @@
                 R.styleable.BubbleTextView, defStyle, 0);
         mLayoutHorizontal = a.getBoolean(R.styleable.BubbleTextView_layoutHorizontal, false);
 
-        int display = a.getInteger(R.styleable.BubbleTextView_iconDisplay, DISPLAY_WORKSPACE);
+        mDisplay = a.getInteger(R.styleable.BubbleTextView_iconDisplay, DISPLAY_WORKSPACE);
         final int defaultIconSize;
-        if (display == DISPLAY_WORKSPACE) {
+        if (mDisplay == DISPLAY_WORKSPACE) {
             DeviceProfile grid = mActivity.getWallpaperDeviceProfile();
             setTextSize(TypedValue.COMPLEX_UNIT_PX, grid.iconTextSizePx);
             setCompoundDrawablePadding(grid.iconDrawablePaddingPx);
             defaultIconSize = grid.iconSizePx;
-        } else if (display == DISPLAY_ALL_APPS) {
+            mIgnorePaddingTouch = true;
+        } else if (mDisplay == DISPLAY_ALL_APPS) {
             DeviceProfile grid = mActivity.getDeviceProfile();
             setTextSize(TypedValue.COMPLEX_UNIT_PX, grid.allAppsIconTextSizePx);
             setCompoundDrawablePadding(grid.allAppsIconDrawablePaddingPx);
             defaultIconSize = grid.allAppsIconSizePx;
-        } else if (display == DISPLAY_FOLDER) {
+            mIgnorePaddingTouch = true;
+        } else if (mDisplay == DISPLAY_FOLDER) {
             DeviceProfile grid = mActivity.getDeviceProfile();
             setTextSize(TypedValue.COMPLEX_UNIT_PX, grid.folderChildTextSizePx);
             setCompoundDrawablePadding(grid.folderChildDrawablePaddingPx);
             defaultIconSize = grid.folderChildIconSizePx;
+            mIgnorePaddingTouch = true;
         } else {
+            // widget_selection or shortcut_popup
             defaultIconSize = mActivity.getDeviceProfile().iconSizePx;
+            mIgnorePaddingTouch = false;
         }
+
         mCenterVertically = a.getBoolean(R.styleable.BubbleTextView_centerVertically, false);
 
         mIconSize = a.getDimensionPixelSize(R.styleable.BubbleTextView_iconSizeOverride,
@@ -319,6 +330,15 @@
 
     @Override
     public boolean onTouchEvent(MotionEvent event) {
+        // ignore events if they happen in padding area
+        if (event.getAction() == MotionEvent.ACTION_DOWN && mIgnorePaddingTouch
+                && (event.getY() < getPaddingTop()
+                || event.getX() < getPaddingLeft()
+                || event.getY() > getHeight() - getPaddingBottom()
+                || event.getX() > getWidth() - getPaddingRight())) {
+            return false;
+        }
+
         // Call the superclass onTouchEvent first, because sometimes it changes the state to
         // isPressed() on an ACTION_UP
         boolean result = super.onTouchEvent(event);
@@ -564,7 +584,11 @@
             mDotInfo = mActivity.getDotInfoForItem(itemInfo);
             boolean isDotted = mDotInfo != null;
             float newDotScale = isDotted ? 1f : 0;
-            mDotRenderer = mActivity.getDeviceProfile().mDotRenderer;
+            if (mDisplay == DISPLAY_ALL_APPS) {
+                mDotRenderer = mActivity.getDeviceProfile().mDotRendererAllApps;
+            } else {
+                mDotRenderer = mActivity.getDeviceProfile().mDotRendererWorkSpace;
+            }
             if (wasDotted || isDotted) {
                 // Animate when a dot is first added or when it is removed.
                 if (animate && (wasDotted ^ isDotted) && isShown()) {
diff --git a/src/com/android/launcher3/CellLayout.java b/src/com/android/launcher3/CellLayout.java
index 09fb244..976ccd5 100644
--- a/src/com/android/launcher3/CellLayout.java
+++ b/src/com/android/launcher3/CellLayout.java
@@ -2702,6 +2702,14 @@
             }
         }
 
+        /**
+         * Sets the position to the provided point
+         */
+        public void setXY(Point point) {
+            cellX = point.x;
+            cellY = point.y;
+        }
+
         public String toString() {
             return "(" + this.cellX + ", " + this.cellY + ")";
         }
diff --git a/src/com/android/launcher3/DefaultLayoutParser.java b/src/com/android/launcher3/DefaultLayoutParser.java
index 75297f6..af85594 100644
--- a/src/com/android/launcher3/DefaultLayoutParser.java
+++ b/src/com/android/launcher3/DefaultLayoutParser.java
@@ -14,13 +14,16 @@
 import android.text.TextUtils;
 import android.util.ArrayMap;
 import android.util.Log;
+
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.util.Thunk;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
 import java.io.IOException;
 import java.net.URISyntaxException;
 import java.util.List;
-import org.xmlpull.v1.XmlPullParser;
-import org.xmlpull.v1.XmlPullParserException;
 
 /**
  * Implements the layout parser with rules for internal layouts and partner layouts.
@@ -55,7 +58,8 @@
         return getFolderElementsMap(mSourceRes);
     }
 
-    @Thunk ArrayMap<String, TagParser> getFolderElementsMap(Resources res) {
+    @Thunk
+    ArrayMap<String, TagParser> getFolderElementsMap(Resources res) {
         ArrayMap<String, TagParser> parsers = new ArrayMap<>();
         parsers.put(TAG_FAVORITE, new AppShortcutWithUriParser());
         parsers.put(TAG_SHORTCUT, new UriShortcutParser(res));
@@ -67,6 +71,7 @@
         ArrayMap<String, TagParser> parsers = new ArrayMap<>();
         parsers.put(TAG_FAVORITE, new AppShortcutWithUriParser());
         parsers.put(TAG_APPWIDGET, new AppWidgetParser());
+        parsers.put(TAG_SEARCH_WIDGET, new SearchWidgetParser());
         parsers.put(TAG_SHORTCUT, new UriShortcutParser(mSourceRes));
         parsers.put(TAG_RESOLVE, new ResolveParser());
         parsers.put(TAG_FOLDER, new MyFolderParser());
@@ -229,7 +234,8 @@
     /**
      * A parser which adds a folder whose contents come from partner apk.
      */
-    @Thunk class PartnerFolderParser implements TagParser {
+    @Thunk
+    class PartnerFolderParser implements TagParser {
 
         @Override
         public int parseAndAdd(XmlPullParser parser) throws XmlPullParserException,
@@ -255,7 +261,8 @@
     /**
      * An extension of FolderParser which allows adding items from a different xml.
      */
-    @Thunk class MyFolderParser extends FolderParser {
+    @Thunk
+    class MyFolderParser extends FolderParser {
 
         @Override
         public int parseAndAdd(XmlPullParser parser) throws XmlPullParserException,
@@ -281,7 +288,7 @@
                 mPackageManager.getReceiverInfo(cn, 0);
             } catch (Exception e) {
                 String[] packages = mPackageManager.currentToCanonicalPackageNames(
-                        new String[] { cn.getPackageName() });
+                        new String[]{cn.getPackageName()});
                 cn = new ComponentName(packages[0], cn.getClassName());
                 try {
                     mPackageManager.getReceiverInfo(cn, 0);
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 883e8c6..bc6fa6e 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -24,16 +24,20 @@
 import android.graphics.Rect;
 import android.util.DisplayMetrics;
 import android.view.Surface;
-import android.view.WindowManager;
+
+import androidx.annotation.Nullable;
 
 import com.android.launcher3.CellLayout.ContainerType;
 import com.android.launcher3.graphics.IconShape;
 import com.android.launcher3.icons.DotRenderer;
 import com.android.launcher3.icons.IconNormalizer;
+import com.android.launcher3.util.DefaultDisplay;
 
 public class DeviceProfile {
 
     public final InvariantDeviceProfile inv;
+    // IDP with no grid override values.
+    @Nullable private final InvariantDeviceProfile originalIdp;
 
     // Device properties
     public final boolean isTablet;
@@ -111,6 +115,7 @@
 
     // All apps
     public int allAppsCellHeightPx;
+    public int allAppsCellWidthPx;
     public int allAppsIconSizePx;
     public int allAppsIconDrawablePaddingPx;
     public float allAppsIconTextSizePx;
@@ -129,13 +134,15 @@
     private boolean mIsSeascape;
 
     // Notification dots
-    public DotRenderer mDotRenderer;
+    public DotRenderer mDotRendererWorkSpace;
+    public DotRenderer mDotRendererAllApps;
 
     public DeviceProfile(Context context, InvariantDeviceProfile inv,
-            Point minSize, Point maxSize,
+            InvariantDeviceProfile originalIDP, Point minSize, Point maxSize,
             int width, int height, boolean isLandscape, boolean isMultiWindowMode) {
 
         this.inv = inv;
+        this.originalIdp = inv;
         this.isLandscape = isLandscape;
         this.isMultiWindowMode = isMultiWindowMode;
 
@@ -227,17 +234,33 @@
             // Recalculate the available dimensions using the new hotseat size.
             updateAvailableDimensions(dm, res);
         }
+
+        if (originalIDP != null) {
+            // Grid size change should not affect All Apps UI, so we use the original profile
+            // measurements here.
+            DeviceProfile originalProfile = isLandscape
+                    ? originalIDP.landscapeProfile
+                    : originalIDP.portraitProfile;
+            allAppsIconSizePx = originalProfile.iconSizePx;
+            allAppsIconTextSizePx = originalProfile.iconTextSizePx;
+            allAppsCellHeightPx = originalProfile.allAppsCellHeightPx;
+            allAppsIconDrawablePaddingPx = originalProfile.iconDrawablePaddingOriginalPx;
+            allAppsCellWidthPx = allAppsIconSizePx + allAppsIconDrawablePaddingPx;
+        }
         updateWorkspacePadding();
 
         // This is done last, after iconSizePx is calculated above.
-        mDotRenderer = new DotRenderer(iconSizePx, IconShape.getShapePath(),
+        mDotRendererWorkSpace = new DotRenderer(iconSizePx, IconShape.getShapePath(),
                 IconShape.DEFAULT_PATH_SIZE);
+        mDotRendererAllApps = iconSizePx == allAppsIconSizePx ? mDotRendererWorkSpace :
+                new DotRenderer(allAppsIconSizePx, IconShape.getShapePath(),
+                        IconShape.DEFAULT_PATH_SIZE);
     }
 
     public DeviceProfile copy(Context context) {
         Point size = new Point(availableWidthPx, availableHeightPx);
-        return new DeviceProfile(context, inv, size, size, widthPx, heightPx, isLandscape,
-                isMultiWindowMode);
+        return new DeviceProfile(context, inv, originalIdp, size, size, widthPx, heightPx,
+                isLandscape, isMultiWindowMode);
     }
 
     public DeviceProfile getMultiWindowProfile(Context context, Point mwSize) {
@@ -248,8 +271,8 @@
         // In multi-window mode, we can have widthPx = availableWidthPx
         // and heightPx = availableHeightPx because Launcher uses the InvariantDeviceProfiles'
         // widthPx and heightPx values where it's needed.
-        DeviceProfile profile = new DeviceProfile(context, inv, mwSize, mwSize, mwSize.x, mwSize.y,
-                isLandscape, true);
+        DeviceProfile profile = new DeviceProfile(context, inv, originalIdp, mwSize, mwSize,
+                mwSize.x, mwSize.y, isLandscape, true);
 
         // If there isn't enough vertical cell padding with the labels displayed, hide the labels.
         float workspaceCellPaddingY = profile.getCellSize().y - profile.iconSizePx
@@ -307,11 +330,16 @@
         updateAvailableFolderCellDimensions(dm, res);
     }
 
+    /**
+     * Updating the iconSize affects many aspects of the launcher layout, such as: iconSizePx,
+     * iconTextSizePx, iconDrawablePaddingPx, cellWidth/Height, allApps* variants,
+     * hotseat sizes, workspaceSpringLoadedShrinkFactor, folderIconSizePx, and folderIconOffsetYPx.
+     */
     private void updateIconSize(float scale, Resources res, DisplayMetrics dm) {
         // Workspace
         final boolean isVerticalLayout = isVerticalBarLayout();
-        float invIconSizePx = isVerticalLayout ? inv.landscapeIconSize : inv.iconSize;
-        iconSizePx = Math.max(1, (int) (ResourceUtils.pxFromDp(invIconSizePx, dm) * scale));
+        float invIconSizeDp = isVerticalLayout ? inv.landscapeIconSize : inv.iconSize;
+        iconSizePx = Math.max(1, (int) (ResourceUtils.pxFromDp(invIconSizeDp, dm) * scale));
         iconTextSizePx = (int) (Utilities.pxFromSp(inv.iconTextSize, dm) * scale);
         iconDrawablePaddingPx = (int) (iconDrawablePaddingOriginalPx * scale);
 
@@ -328,13 +356,13 @@
         }
         cellWidthPx = iconSizePx + iconDrawablePaddingPx;
 
-        // All apps
-        allAppsIconTextSizePx = iconTextSizePx;
         allAppsIconSizePx = iconSizePx;
+        allAppsIconTextSizePx = iconTextSizePx;
         allAppsIconDrawablePaddingPx = iconDrawablePaddingPx;
         allAppsCellHeightPx = getCellSize().y;
+        allAppsCellWidthPx = allAppsIconSizePx + allAppsIconDrawablePaddingPx;
 
-        if (isVerticalLayout) {
+        if (isVerticalBarLayout()) {
             // Always hide the Workspace text with vertical bar layout.
             adjustToHideWorkspaceLabels();
         }
@@ -375,14 +403,15 @@
         Point totalWorkspacePadding = getTotalWorkspacePadding();
 
         // Check if the icons fit within the available height.
-        float usedHeight = folderCellHeightPx * inv.numFolderRows + folderBottomPanelSize;
-        int maxHeight = availableHeightPx - totalWorkspacePadding.y - folderMargin;
-        float scaleY = maxHeight / usedHeight;
+        float contentUsedHeight = folderCellHeightPx * inv.numFolderRows;
+        int contentMaxHeight = availableHeightPx - totalWorkspacePadding.y - folderBottomPanelSize
+                - folderMargin;
+        float scaleY = contentMaxHeight / contentUsedHeight;
 
         // Check if the icons fit within the available width.
-        float usedWidth = folderCellWidthPx * inv.numFolderColumns;
-        int maxWidth = availableWidthPx - totalWorkspacePadding.x - folderMargin;
-        float scaleX = maxWidth / usedWidth;
+        float contentUsedWidth = folderCellWidthPx * inv.numFolderColumns;
+        int contentMaxWidth = availableWidthPx - totalWorkspacePadding.x - folderMargin;
+        float scaleX = contentMaxWidth / contentUsedWidth;
 
         float scale = Math.min(scaleX, scaleY);
         if (scale < 1f) {
@@ -419,14 +448,18 @@
     }
 
     public Point getCellSize() {
+        return getCellSize(inv.numColumns, inv.numRows);
+    }
+
+    private Point getCellSize(int numColumns, int numRows) {
         Point result = new Point();
         // Since we are only concerned with the overall padding, layout direction does
         // not matter.
         Point padding = getTotalWorkspacePadding();
         result.x = calculateCellWidth(availableWidthPx - padding.x
-                - cellLayoutPaddingLeftRightPx * 2, inv.numColumns);
+                - cellLayoutPaddingLeftRightPx * 2, numColumns);
         result.y = calculateCellHeight(availableHeightPx - padding.y
-                - cellLayoutBottomPaddingPx, inv.numRows);
+                - cellLayoutBottomPaddingPx, numRows);
         return result;
     }
 
@@ -542,11 +575,19 @@
     }
 
     /**
+     * Returns true when the number of workspace columns and all apps columns differs.
+     */
+    private boolean allAppsHasDifferentNumColumns() {
+        return inv.numAllAppsColumns != inv.numColumns;
+    }
+
+    /**
      * Updates orientation information and returns true if it has changed from the previous value.
      */
-    public boolean updateIsSeascape(WindowManager wm) {
+    public boolean updateIsSeascape(Context context) {
         if (isVerticalBarLayout()) {
-            boolean isSeascape = wm.getDefaultDisplay().getRotation() == Surface.ROTATION_270;
+            boolean isSeascape = DefaultDisplay.INSTANCE.get(context).getInfo().rotation
+                    == Surface.ROTATION_270;
             if (mIsSeascape != isSeascape) {
                 mIsSeascape = isSeascape;
                 return true;
diff --git a/src/com/android/launcher3/FolderInfo.java b/src/com/android/launcher3/FolderInfo.java
index b747d62..e2b7b68 100644
--- a/src/com/android/launcher3/FolderInfo.java
+++ b/src/com/android/launcher3/FolderInfo.java
@@ -50,9 +50,9 @@
     /**
      * The apps and shortcuts
      */
-    public ArrayList<WorkspaceItemInfo> contents = new ArrayList<WorkspaceItemInfo>();
+    public ArrayList<WorkspaceItemInfo> contents = new ArrayList<>();
 
-    ArrayList<FolderListener> listeners = new ArrayList<FolderListener>();
+    private ArrayList<FolderListener> mListeners = new ArrayList<>();
 
     public FolderInfo() {
         itemType = LauncherSettings.Favorites.ITEM_TYPE_FOLDER;
@@ -72,10 +72,10 @@
      * Add an app or shortcut for a specified rank.
      */
     public void add(WorkspaceItemInfo item, int rank, boolean animate) {
-        rank = Utilities.boundToRange(rank, 0, contents.size());
+        rank = Utilities.boundToRange(rank, 0, contents.size() + 1);
         contents.add(rank, item);
-        for (int i = 0; i < listeners.size(); i++) {
-            listeners.get(i).onAdd(item, rank);
+        for (int i = 0; i < mListeners.size(); i++) {
+            mListeners.get(i).onAdd(item, rank);
         }
         itemsChanged(animate);
     }
@@ -87,53 +87,37 @@
      */
     public void remove(WorkspaceItemInfo item, boolean animate) {
         contents.remove(item);
-        for (int i = 0; i < listeners.size(); i++) {
-            listeners.get(i).onRemove(item);
+        for (int i = 0; i < mListeners.size(); i++) {
+            mListeners.get(i).onRemove(item);
         }
         itemsChanged(animate);
     }
 
-    public void setTitle(CharSequence title) {
-        this.title = title;
-        for (int i = 0; i < listeners.size(); i++) {
-            listeners.get(i).onTitleChanged(title);
-        }
-    }
-
     @Override
     public void onAddToDatabase(ContentWriter writer) {
         super.onAddToDatabase(writer);
         writer.put(LauncherSettings.Favorites.TITLE, title)
                 .put(LauncherSettings.Favorites.OPTIONS, options);
-
     }
 
     public void addListener(FolderListener listener) {
-        listeners.add(listener);
+        mListeners.add(listener);
     }
 
     public void removeListener(FolderListener listener) {
-        listeners.remove(listener);
+        mListeners.remove(listener);
     }
 
     public void itemsChanged(boolean animate) {
-        for (int i = 0; i < listeners.size(); i++) {
-            listeners.get(i).onItemsChanged(animate);
-        }
-    }
-
-    public void prepareAutoUpdate() {
-        for (int i = 0; i < listeners.size(); i++) {
-            listeners.get(i).prepareAutoUpdate();
+        for (int i = 0; i < mListeners.size(); i++) {
+            mListeners.get(i).onItemsChanged(animate);
         }
     }
 
     public interface FolderListener {
         public void onAdd(WorkspaceItemInfo item, int rank);
         public void onRemove(WorkspaceItemInfo item);
-        public void onTitleChanged(CharSequence title);
         public void onItemsChanged(boolean animate);
-        public void prepareAutoUpdate();
     }
 
     public boolean hasOption(int optionFlag) {
diff --git a/src/com/android/launcher3/Hotseat.java b/src/com/android/launcher3/Hotseat.java
index 00acdcd..03ee707 100644
--- a/src/com/android/launcher3/Hotseat.java
+++ b/src/com/android/launcher3/Hotseat.java
@@ -105,8 +105,7 @@
 
     @Override
     public boolean onTouchEvent(MotionEvent event) {
-        // Don't let if follow through to workspace
-        return true;
+        return event.getY() > getCellHeight();
     }
 
     @Override
diff --git a/src/com/android/launcher3/InstallShortcutReceiver.java b/src/com/android/launcher3/InstallShortcutReceiver.java
index f19c602..fe91602 100644
--- a/src/com/android/launcher3/InstallShortcutReceiver.java
+++ b/src/com/android/launcher3/InstallShortcutReceiver.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3;
 
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+
 import android.appwidget.AppWidgetManager;
 import android.appwidget.AppWidgetProviderInfo;
 import android.content.BroadcastReceiver;
@@ -29,8 +31,6 @@
 import android.content.pm.ShortcutInfo;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
-import android.os.Handler;
-import android.os.Message;
 import android.os.Parcelable;
 import android.os.Process;
 import android.os.UserHandle;
@@ -39,6 +39,9 @@
 import android.util.Log;
 import android.util.Pair;
 
+import androidx.annotation.Nullable;
+import androidx.annotation.WorkerThread;
+
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.icons.BitmapInfo;
@@ -65,9 +68,6 @@
 
 public class InstallShortcutReceiver extends BroadcastReceiver {
 
-    private static final int MSG_ADD_TO_QUEUE = 1;
-    private static final int MSG_FLUSH_QUEUE = 2;
-
     public static final int FLAG_ACTIVITY_PAUSED = 1;
     public static final int FLAG_LOADER_RUNNING = 2;
     public static final int FLAG_DRAG_AND_DROP = 4;
@@ -100,66 +100,57 @@
     public static final int NEW_SHORTCUT_BOUNCE_DURATION = 450;
     public static final int NEW_SHORTCUT_STAGGER_DELAY = 85;
 
-    private static final Handler sHandler = new Handler(LauncherModel.getWorkerLooper()) {
+    @WorkerThread
+    private static void addToQueue(Context context, PendingInstallShortcutInfo info) {
+        String encoded = info.encodeToString();
+        SharedPreferences prefs = Utilities.getPrefs(context);
+        Set<String> strings = prefs.getStringSet(APPS_PENDING_INSTALL, null);
+        strings = (strings != null) ? new HashSet<>(strings) : new HashSet<>(1);
+        strings.add(encoded);
+        prefs.edit().putStringSet(APPS_PENDING_INSTALL, strings).apply();
+    }
 
-        @Override
-        public void handleMessage(Message msg) {
-            switch (msg.what) {
-                case MSG_ADD_TO_QUEUE: {
-                    Pair<Context, PendingInstallShortcutInfo> pair =
-                            (Pair<Context, PendingInstallShortcutInfo>) msg.obj;
-                    String encoded = pair.second.encodeToString();
-                    SharedPreferences prefs = Utilities.getPrefs(pair.first);
-                    Set<String> strings = prefs.getStringSet(APPS_PENDING_INSTALL, null);
-                    strings = (strings != null) ? new HashSet<>(strings) : new HashSet<String>(1);
-                    strings.add(encoded);
-                    prefs.edit().putStringSet(APPS_PENDING_INSTALL, strings).apply();
-                    return;
-                }
-                case MSG_FLUSH_QUEUE: {
-                    Context context = (Context) msg.obj;
-                    LauncherModel model = LauncherAppState.getInstance(context).getModel();
-                    if (model.getCallback() == null) {
-                        // Launcher not loaded
-                        return;
-                    }
-
-                    ArrayList<Pair<ItemInfo, Object>> installQueue = new ArrayList<>();
-                    SharedPreferences prefs = Utilities.getPrefs(context);
-                    Set<String> strings = prefs.getStringSet(APPS_PENDING_INSTALL, null);
-                    if (DBG) Log.d(TAG, "Getting and clearing APPS_PENDING_INSTALL: " + strings);
-                    if (strings == null) {
-                        return;
-                    }
-
-                    LauncherAppsCompat launcherApps = LauncherAppsCompat.getInstance(context);
-                    for (String encoded : strings) {
-                        PendingInstallShortcutInfo info = decode(encoded, context);
-                        if (info == null) {
-                            continue;
-                        }
-
-                        String pkg = getIntentPackage(info.launchIntent);
-                        if (!TextUtils.isEmpty(pkg)
-                                && !launcherApps.isPackageEnabledForProfile(pkg, info.user)
-                                && !info.isActivity) {
-                            if (DBG) Log.d(TAG, "Ignoring shortcut for absent package: "
-                                    + info.launchIntent);
-                            continue;
-                        }
-
-                        // Generate a shortcut info to add into the model
-                        installQueue.add(info.getItemInfo());
-                    }
-                    prefs.edit().remove(APPS_PENDING_INSTALL).apply();
-                    if (!installQueue.isEmpty()) {
-                        model.addAndBindAddedWorkspaceItems(installQueue);
-                    }
-                    return;
-                }
-            }
+    @WorkerThread
+    private static void flushQueueInBackground(Context context) {
+        LauncherModel model = LauncherAppState.getInstance(context).getModel();
+        if (model.getCallback() == null) {
+            // Launcher not loaded
+            return;
         }
-    };
+
+        ArrayList<Pair<ItemInfo, Object>> installQueue = new ArrayList<>();
+        SharedPreferences prefs = Utilities.getPrefs(context);
+        Set<String> strings = prefs.getStringSet(APPS_PENDING_INSTALL, null);
+        if (DBG) Log.d(TAG, "Getting and clearing APPS_PENDING_INSTALL: " + strings);
+        if (strings == null) {
+            return;
+        }
+
+        LauncherAppsCompat launcherApps = LauncherAppsCompat.getInstance(context);
+        for (String encoded : strings) {
+            PendingInstallShortcutInfo info = decode(encoded, context);
+            if (info == null) {
+                continue;
+            }
+
+            String pkg = getIntentPackage(info.launchIntent);
+            if (!TextUtils.isEmpty(pkg)
+                    && !launcherApps.isPackageEnabledForProfile(pkg, info.user)
+                    && !info.isActivity) {
+                if (DBG) {
+                    Log.d(TAG, "Ignoring shortcut for absent package: " + info.launchIntent);
+                }
+                continue;
+            }
+
+            // Generate a shortcut info to add into the model
+            installQueue.add(info.getItemInfo());
+        }
+        prefs.edit().remove(APPS_PENDING_INSTALL).apply();
+        if (!installQueue.isEmpty()) {
+            model.addAndBindAddedWorkspaceItems(installQueue);
+        }
+    }
 
     public static void removeFromInstallQueue(Context context, HashSet<String> packageNames,
             UserHandle user) {
@@ -250,11 +241,6 @@
         return info == null ? null : (WorkspaceItemInfo) info.getItemInfo().first;
     }
 
-    public static WorkspaceItemInfo fromActivityInfo(LauncherActivityInfo info, Context context) {
-        return (WorkspaceItemInfo)
-                new PendingInstallShortcutInfo(info, context).getItemInfo().first;
-    }
-
     public static void queueShortcut(ShortcutInfo info, Context context) {
         queuePendingShortcutInfo(new PendingInstallShortcutInfo(info, context), context);
     }
@@ -291,7 +277,7 @@
 
     private static void queuePendingShortcutInfo(PendingInstallShortcutInfo info, Context context) {
         // Queue the item up for adding if launcher has not loaded properly yet
-        Message.obtain(sHandler, MSG_ADD_TO_QUEUE, Pair.create(context, info)).sendToTarget();
+        MODEL_EXECUTOR.post(() -> addToQueue(context, info));
         flushInstallQueue(context);
     }
 
@@ -307,7 +293,7 @@
         if (sInstallQueueDisabledFlags != 0) {
             return;
         }
-        Message.obtain(sHandler, MSG_FLUSH_QUEUE, context.getApplicationContext()).sendToTarget();
+        MODEL_EXECUTOR.post(() -> flushQueueInBackground(context));
     }
 
     /**
@@ -330,10 +316,10 @@
     private static class PendingInstallShortcutInfo {
 
         final boolean isActivity;
-        final ShortcutInfo shortcutInfo;
-        final AppWidgetProviderInfo providerInfo;
+        @Nullable final ShortcutInfo shortcutInfo;
+        @Nullable final AppWidgetProviderInfo providerInfo;
 
-        final Intent data;
+        @Nullable final Intent data;
         final Context mContext;
         final Intent launchIntent;
         final String label;
@@ -363,7 +349,12 @@
             shortcutInfo = null;
             providerInfo = null;
 
-            data = null;
+            String packageName = info.getComponentName().getPackageName();
+            data = new Intent();
+            data.putExtra(Intent.EXTRA_SHORTCUT_INTENT, new Intent().setComponent(
+                    new ComponentName(packageName, "")).setPackage(packageName));
+            data.putExtra(Intent.EXTRA_SHORTCUT_NAME, info.getLabel());
+
             user = info.getUser();
             mContext = context;
 
@@ -457,21 +448,26 @@
                 // This name is only used for comparisons and notifications, so fall back to activity
                 // name if not supplied
                 String name = ensureValidName(mContext, launchIntent, label).toString();
-                Bitmap icon = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON);
-                Intent.ShortcutIconResource iconResource =
-                    data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE);
+                Bitmap icon = data == null ? null
+                        : data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON);
+                Intent.ShortcutIconResource iconResource = data == null ? null
+                    : data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE);
 
                 // Only encode the parameters which are supported by the API.
                 JSONStringer json = new JSONStringer()
                     .object()
                     .key(LAUNCH_INTENT_KEY).value(launchIntent.toUri(0))
                     .key(NAME_KEY).value(name)
+                    .key(USER_HANDLE_KEY).value(
+                            UserManagerCompat.getInstance(mContext).getSerialNumberForUser(user))
                     .key(APP_SHORTCUT_TYPE_KEY).value(isActivity);
                 if (icon != null) {
                     byte[] iconByteArray = GraphicsUtils.flattenBitmap(icon);
-                    json = json.key(ICON_KEY).value(
-                            Base64.encodeToString(
-                                    iconByteArray, 0, iconByteArray.length, Base64.DEFAULT));
+                    if (iconByteArray != null) {
+                        json = json.key(ICON_KEY).value(
+                                Base64.encodeToString(
+                                        iconByteArray, 0, iconByteArray.length, Base64.DEFAULT));
+                    }
                 }
                 if (iconResource != null) {
                     json = json.key(ICON_RESOURCE_NAME_KEY).value(iconResource.resourceName);
@@ -487,7 +483,7 @@
 
         public Pair<ItemInfo, Object> getItemInfo() {
             if (isActivity) {
-                WorkspaceItemInfo si = createWorkspaceItemInfo(data,
+                WorkspaceItemInfo si = createWorkspaceItemInfo(data, user,
                         LauncherAppState.getInstance(mContext));
                 si.itemType = LauncherSettings.Favorites.ITEM_TYPE_APPLICATION;
                 si.status |= WorkspaceItemInfo.FLAG_AUTOINSTALL_ICON;
@@ -512,7 +508,7 @@
                 return Pair.create(widgetInfo, providerInfo);
             } else {
                 WorkspaceItemInfo itemInfo =
-                        createWorkspaceItemInfo(data, LauncherAppState.getInstance(mContext));
+                        createWorkspaceItemInfo(data, user, LauncherAppState.getInstance(mContext));
                 return Pair.create(itemInfo, null);
             }
         }
@@ -617,7 +613,7 @@
             // Already an activity target
             return original;
         }
-        if (!Utilities.isLauncherAppTarget(original.launchIntent)) {
+        if (!PackageManagerHelper.isLauncherAppTarget(original.launchIntent)) {
             return original;
         }
 
@@ -630,7 +626,8 @@
         return new PendingInstallShortcutInfo(info, original.mContext);
     }
 
-    private static WorkspaceItemInfo createWorkspaceItemInfo(Intent data, LauncherAppState app) {
+    private static WorkspaceItemInfo createWorkspaceItemInfo(Intent data, UserHandle user,
+            LauncherAppState app) {
         if (data == null) {
             Log.e(TAG, "Can't construct WorkspaceItemInfo with null data");
             return null;
@@ -647,10 +644,7 @@
         }
 
         final WorkspaceItemInfo info = new WorkspaceItemInfo();
-
-        // Only support intents for current user for now. Intents sent from other
-        // users wouldn't get here without intent forwarding anyway.
-        info.user = Process.myUserHandle();
+        info.user = user;
 
         BitmapInfo iconInfo = null;
         LauncherIcons li = LauncherIcons.obtain(app.getContext());
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index bde87cb..d66ba73 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -18,6 +18,8 @@
 
 import static com.android.launcher3.Utilities.getDevicePrefs;
 import static com.android.launcher3.config.FeatureFlags.APPLY_CONFIG_AT_RUNTIME;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.settings.SettingsActivity.GRID_OPTIONS_PREFERENCE_KEY;
 import static com.android.launcher3.util.PackageManagerHelper.getPackageFilter;
 
 import android.annotation.TargetApi;
@@ -39,11 +41,13 @@
 import android.util.SparseArray;
 import android.util.TypedValue;
 import android.util.Xml;
-import android.view.Display;
-import android.view.WindowManager;
+
+import androidx.annotation.Nullable;
+import androidx.annotation.VisibleForTesting;
 
 import com.android.launcher3.graphics.IconShape;
 import com.android.launcher3.util.ConfigMonitor;
+import com.android.launcher3.util.DefaultDisplay;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.MainThreadInitializedObject;
 import com.android.launcher3.util.Themes;
@@ -54,9 +58,7 @@
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collections;
-
-import androidx.annotation.Nullable;
-import androidx.annotation.VisibleForTesting;
+import java.util.Comparator;
 
 public class InvariantDeviceProfile {
 
@@ -102,6 +104,8 @@
     public int iconBitmapSize;
     public int fillResIconDpi;
     public float iconTextSize;
+    public float allAppsIconSize;
+    public float allAppsIconTextSize;
 
     private SparseArray<TypedValue> mExtraAttrs;
 
@@ -110,6 +114,11 @@
      */
     public int numHotseatIcons;
 
+    /**
+     * Number of columns in the all apps list.
+     */
+    public int numAllAppsColumns;
+
     public int defaultLayoutId;
     int demoModeLayoutId;
 
@@ -136,6 +145,9 @@
         landscapeIconSize = p.landscapeIconSize;
         iconTextSize = p.iconTextSize;
         numHotseatIcons = p.numHotseatIcons;
+        numAllAppsColumns = p.numAllAppsColumns;
+        allAppsIconSize = p.allAppsIconSize;
+        allAppsIconTextSize = p.allAppsIconTextSize;
         defaultLayoutId = p.defaultLayoutId;
         demoModeLayoutId = p.demoModeLayoutId;
         mExtraAttrs = p.mExtraAttrs;
@@ -144,7 +156,10 @@
 
     @TargetApi(23)
     private InvariantDeviceProfile(Context context) {
-        initGrid(context, Utilities.getPrefs(context).getString(KEY_IDP_GRID_NAME, null));
+        String gridName = Utilities.getPrefs(context).getBoolean(GRID_OPTIONS_PREFERENCE_KEY, false)
+                ? Utilities.getPrefs(context).getString(KEY_IDP_GRID_NAME, null)
+                : null;
+        initGrid(context, gridName);
         mConfigMonitor = new ConfigMonitor(context,
                 APPLY_CONFIG_AT_RUNTIME.get() ? this::onConfigChanged : this::killProcess);
         mOverlayMonitor = new OverlayMonitor(context);
@@ -172,63 +187,81 @@
     }
 
     private String initGrid(Context context, String gridName) {
-        WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
-        Display display = wm.getDefaultDisplay();
-        DisplayMetrics dm = new DisplayMetrics();
-        display.getMetrics(dm);
+        DefaultDisplay.Info displayInfo = DefaultDisplay.INSTANCE.get(context).getInfo();
 
-        Point smallestSize = new Point();
-        Point largestSize = new Point();
-        display.getCurrentSizeRange(smallestSize, largestSize);
+        Point smallestSize = new Point(displayInfo.smallestSize);
+        Point largestSize = new Point(displayInfo.largestSize);
 
-        ArrayList<DisplayOption> allOptions = getPredefinedDeviceProfiles(context, gridName);
         // This guarantees that width < height
-        float minWidthDps = Utilities.dpiFromPx(Math.min(smallestSize.x, smallestSize.y), dm);
-        float minHeightDps = Utilities.dpiFromPx(Math.min(largestSize.x, largestSize.y), dm);
-        // Sort the profiles based on the closeness to the device size
-        Collections.sort(allOptions, (a, b) ->
-                Float.compare(dist(minWidthDps, minHeightDps, a.minWidthDps, a.minHeightDps),
-                        dist(minWidthDps, minHeightDps, b.minWidthDps, b.minHeightDps)));
-        DisplayOption interpolatedDisplayOption =
-                invDistWeightedInterpolate(minWidthDps,  minHeightDps, allOptions);
+        float minWidthDps = Utilities.dpiFromPx(Math.min(smallestSize.x, smallestSize.y),
+                displayInfo.metrics);
+        float minHeightDps = Utilities.dpiFromPx(Math.min(largestSize.x, largestSize.y),
+                displayInfo.metrics);
 
-        GridOption closestProfile = allOptions.get(0).grid;
-        numRows = closestProfile.numRows;
-        numColumns = closestProfile.numColumns;
-        numHotseatIcons = closestProfile.numHotseatIcons;
-        defaultLayoutId = closestProfile.defaultLayoutId;
-        demoModeLayoutId = closestProfile.demoModeLayoutId;
-        numFolderRows = closestProfile.numFolderRows;
-        numFolderColumns = closestProfile.numFolderColumns;
-        mExtraAttrs = closestProfile.extraAttrs;
-
-        if (!closestProfile.name.equals(gridName)) {
-            Utilities.getPrefs(context).edit()
-                    .putString(KEY_IDP_GRID_NAME, closestProfile.name).apply();
-        }
-
-        iconSize = interpolatedDisplayOption.iconSize;
-        iconShapePath = getIconShapePath(context);
-        landscapeIconSize = interpolatedDisplayOption.landscapeIconSize;
-        iconBitmapSize = ResourceUtils.pxFromDp(iconSize, dm);
-        iconTextSize = interpolatedDisplayOption.iconTextSize;
-        fillResIconDpi = getLauncherIconDensity(iconBitmapSize);
-
-        // If the partner customization apk contains any grid overrides, apply them
-        // Supported overrides: numRows, numColumns, iconSize
-        applyPartnerDeviceProfileOverrides(context, dm);
-
-        Point realSize = new Point();
-        display.getRealSize(realSize);
+        Point realSize = new Point(displayInfo.realSize);
         // The real size never changes. smallSide and largeSide will remain the
         // same in any orientation.
         int smallSide = Math.min(realSize.x, realSize.y);
         int largeSide = Math.max(realSize.x, realSize.y);
 
-        landscapeProfile = new DeviceProfile(context, this, smallestSize, largestSize,
-                largeSide, smallSide, true /* isLandscape */, false /* isMultiWindowMode */);
-        portraitProfile = new DeviceProfile(context, this, smallestSize, largestSize,
-                smallSide, largeSide, false /* isLandscape */, false /* isMultiWindowMode */);
+        // We want a list of all options as well as the list of filtered options. This allows us
+        // to have a consistent UI for areas that the grid size change should not affect
+        // ie. All Apps should be consistent between grid sizes.
+        ArrayList<DisplayOption> allOptions = new ArrayList<>();
+        ArrayList<DisplayOption> filteredOptions = new ArrayList<>();
+        getPredefinedDeviceProfiles(context, gridName, filteredOptions, allOptions);
+
+        if (allOptions.isEmpty() && filteredOptions.isEmpty()) {
+            throw new RuntimeException("No display option with canBeDefault=true");
+        }
+
+        // Sort the profiles based on the closeness to the device size
+        Comparator<DisplayOption> comparator = (a, b) -> Float.compare(dist(minWidthDps,
+                minHeightDps, a.minWidthDps, a.minHeightDps),
+                dist(minWidthDps, minHeightDps, b.minWidthDps, b.minHeightDps));
+
+        // Calculate the device profiles as if there is no grid override.
+        Collections.sort(allOptions, comparator);
+        DisplayOption interpolatedDisplayOption =
+                invDistWeightedInterpolate(minWidthDps,  minHeightDps, allOptions);
+        initGridOption(context, allOptions, interpolatedDisplayOption, displayInfo.metrics);
+
+        // Create IDP with no grid override values.
+        InvariantDeviceProfile originalIDP = new InvariantDeviceProfile(this);
+        originalIDP.landscapeProfile = new DeviceProfile(context, this, null, smallestSize,
+                largestSize, largeSide, smallSide, true /* isLandscape */,
+                false /* isMultiWindowMode */);
+        originalIDP.portraitProfile = new DeviceProfile(context, this, null, smallestSize,
+                largestSize, smallSide, largeSide, false /* isLandscape */,
+                false /* isMultiWindowMode */);
+
+        if (filteredOptions.isEmpty()) {
+            filteredOptions = allOptions;
+
+            landscapeProfile = originalIDP.landscapeProfile;
+            portraitProfile = originalIDP.portraitProfile;
+        } else {
+            Collections.sort(filteredOptions, comparator);
+            interpolatedDisplayOption =
+                    invDistWeightedInterpolate(minWidthDps, minHeightDps, filteredOptions);
+
+            initGridOption(context, filteredOptions, interpolatedDisplayOption,
+                    displayInfo.metrics);
+            numAllAppsColumns = originalIDP.numAllAppsColumns;
+
+            landscapeProfile = new DeviceProfile(context, this, originalIDP, smallestSize,
+                    largestSize, largeSide, smallSide, true /* isLandscape */,
+                    false /* isMultiWindowMode */);
+            portraitProfile = new DeviceProfile(context, this, originalIDP, smallestSize,
+                    largestSize, smallSide, largeSide, false /* isLandscape */,
+                    false /* isMultiWindowMode */);
+        }
+
+        GridOption closestProfile = filteredOptions.get(0).grid;
+        if (!closestProfile.name.equals(gridName)) {
+            Utilities.getPrefs(context).edit()
+                    .putString(KEY_IDP_GRID_NAME, closestProfile.name).apply();
+        }
 
         // We need to ensure that there is enough extra space in the wallpaper
         // for the intended parallax effects
@@ -246,6 +279,33 @@
         return closestProfile.name;
     }
 
+    private void initGridOption(Context context, ArrayList<DisplayOption> options,
+            DisplayOption displayOption, DisplayMetrics metrics) {
+        GridOption closestProfile = options.get(0).grid;
+        numRows = closestProfile.numRows;
+        numColumns = closestProfile.numColumns;
+        numHotseatIcons = closestProfile.numHotseatIcons;
+        defaultLayoutId = closestProfile.defaultLayoutId;
+        demoModeLayoutId = closestProfile.demoModeLayoutId;
+        numFolderRows = closestProfile.numFolderRows;
+        numFolderColumns = closestProfile.numFolderColumns;
+        numAllAppsColumns = numColumns;
+
+        mExtraAttrs = closestProfile.extraAttrs;
+
+        iconSize = displayOption.iconSize;
+        iconShapePath = getIconShapePath(context);
+        landscapeIconSize = displayOption.landscapeIconSize;
+        iconBitmapSize = ResourceUtils.pxFromDp(iconSize, metrics);
+        iconTextSize = displayOption.iconTextSize;
+        fillResIconDpi = getLauncherIconDensity(iconBitmapSize);
+
+        // If the partner customization apk contains any grid overrides, apply them
+        // Supported overrides: numRows, numColumns, iconSize
+        applyPartnerDeviceProfileOverrides(context, metrics);
+    }
+
+
     @Nullable
     public TypedValue getAttrValue(int attr) {
         return mExtraAttrs == null ? null : mExtraAttrs.get(attr);
@@ -280,7 +340,7 @@
     public void setCurrentGrid(Context context, String gridName) {
         Context appContext = context.getApplicationContext();
         Utilities.getPrefs(appContext).edit().putString(KEY_IDP_GRID_NAME, gridName).apply();
-        new MainThreadExecutor().execute(() -> onConfigChanged(appContext));
+        MAIN_EXECUTOR.execute(() -> onConfigChanged(appContext));
     }
 
     private void onConfigChanged(Context context) {
@@ -288,9 +348,10 @@
         InvariantDeviceProfile oldProfile = new InvariantDeviceProfile(this);
 
         // Re-init grid
-        // TODO(b/131867841): We pass in null here so that we can calculate the closest profile
-        // without the bias of the grid name.
-        initGrid(context, null);
+        String gridName = Utilities.getPrefs(context).getBoolean(GRID_OPTIONS_PREFERENCE_KEY, false)
+                ? Utilities.getPrefs(context).getString(KEY_IDP_GRID_NAME, null)
+                : null;
+        initGrid(context, gridName);
 
         int changeFlags = 0;
         if (numRows != oldProfile.numRows ||
@@ -322,7 +383,13 @@
         }
     }
 
-    static ArrayList<DisplayOption> getPredefinedDeviceProfiles(Context context, String gridName) {
+    /**
+     * @param gridName The current grid name.
+     * @param filteredOptionsOut List filled with all the filtered options based on gridName.
+     * @param allOptionsOut List filled with all the options that can be the default option.
+     */
+    static void getPredefinedDeviceProfiles(Context context, String gridName,
+            ArrayList<DisplayOption> filteredOptionsOut, ArrayList<DisplayOption> allOptionsOut) {
         ArrayList<DisplayOption> profiles = new ArrayList<>();
         try (XmlResourceParser parser = context.getResources().getXml(R.xml.device_profiles)) {
             final int depth = parser.getDepth();
@@ -349,26 +416,19 @@
             throw new RuntimeException(e);
         }
 
-        ArrayList<DisplayOption> filteredProfiles = new ArrayList<>();
         if (!TextUtils.isEmpty(gridName)) {
             for (DisplayOption option : profiles) {
                 if (gridName.equals(option.grid.name)) {
-                    filteredProfiles.add(option);
+                    filteredOptionsOut.add(option);
                 }
             }
         }
-        if (filteredProfiles.isEmpty()) {
-            // No grid found, use the default options
-            for (DisplayOption option : profiles) {
-                if (option.canBeDefault) {
-                    filteredProfiles.add(option);
-                }
+
+        for (DisplayOption option : profiles) {
+            if (option.canBeDefault) {
+                allOptionsOut.add(option);
             }
         }
-        if (filteredProfiles.isEmpty()) {
-            throw new RuntimeException("No display option with canBeDefault=true");
-        }
-        return filteredProfiles;
     }
 
     private int getLauncherIconDensity(int requiredSize) {
@@ -514,6 +574,7 @@
                     R.styleable.GridDisplayOption_numFolderRows, numRows);
             numFolderColumns = a.getInt(
                     R.styleable.GridDisplayOption_numFolderColumns, numColumns);
+
             a.recycle();
 
             extraAttrs = Themes.createValueMap(context, attrs,
@@ -530,8 +591,8 @@
         private final boolean canBeDefault;
 
         private float iconSize;
-        private float landscapeIconSize;
         private float iconTextSize;
+        private float landscapeIconSize;
 
         DisplayOption(GridOption grid, Context context, AttributeSet attrs) {
             this.grid = grid;
@@ -549,6 +610,7 @@
             landscapeIconSize = a.getFloat(R.styleable.ProfileDisplayOption_landscapeIconSize,
                     iconSize);
             iconTextSize = a.getFloat(R.styleable.ProfileDisplayOption_iconTextSize, 0);
+
             a.recycle();
         }
 
diff --git a/src/com/android/launcher3/ItemInfoWithIcon.java b/src/com/android/launcher3/ItemInfoWithIcon.java
index e29f927..1550bb0 100644
--- a/src/com/android/launcher3/ItemInfoWithIcon.java
+++ b/src/com/android/launcher3/ItemInfoWithIcon.java
@@ -27,6 +27,8 @@
  */
 public abstract class ItemInfoWithIcon extends ItemInfo {
 
+    public static final String TAG = "ItemInfoDebug";
+
     /**
      * A bitmap version of the application icon.
      */
@@ -126,4 +128,8 @@
         iconColor = info.color;
     }
 
+    /**
+     * @return a copy of this
+     */
+    public abstract ItemInfoWithIcon clone();
 }
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 257f0df..1338b30 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -16,10 +16,11 @@
 
 package com.android.launcher3;
 
-import static android.content.pm.ActivityInfo.CONFIG_LOCALE;
 import static android.content.pm.ActivityInfo.CONFIG_ORIENTATION;
 import static android.content.pm.ActivityInfo.CONFIG_SCREEN_SIZE;
 
+import static com.android.launcher3.AbstractFloatingView.TYPE_ALL;
+import static com.android.launcher3.AbstractFloatingView.TYPE_REBIND_SAFE;
 import static com.android.launcher3.AbstractFloatingView.TYPE_SNACKBAR;
 import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY;
 import static com.android.launcher3.LauncherState.ALL_APPS;
@@ -77,6 +78,9 @@
 import android.view.animation.OvershootInterpolator;
 import android.widget.Toast;
 
+import androidx.annotation.Nullable;
+import androidx.annotation.VisibleForTesting;
+
 import com.android.launcher3.DropTarget.DragObject;
 import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
 import com.android.launcher3.allapps.AllAppsContainerView;
@@ -91,9 +95,9 @@
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.dragndrop.DragView;
-import com.android.launcher3.folder.Folder;
+import com.android.launcher3.folder.FolderGridOrganizer;
 import com.android.launcher3.folder.FolderIcon;
-import com.android.launcher3.folder.FolderIconPreviewVerifier;
+import com.android.launcher3.folder.FolderNameProvider;
 import com.android.launcher3.graphics.RotationMode;
 import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.keyboard.CustomActionsPopup;
@@ -103,14 +107,14 @@
 import com.android.launcher3.logging.UserEventDispatcher;
 import com.android.launcher3.logging.UserEventDispatcher.UserEventDelegate;
 import com.android.launcher3.model.AppLaunchTracker;
+import com.android.launcher3.model.BgDataModel.Callbacks;
 import com.android.launcher3.model.ModelWriter;
 import com.android.launcher3.notification.NotificationListener;
 import com.android.launcher3.popup.PopupContainerWithArrow;
 import com.android.launcher3.popup.PopupDataProvider;
-import com.android.launcher3.shortcuts.DeepShortcutManager;
+import com.android.launcher3.qsb.QsbContainerView;
 import com.android.launcher3.states.InternalStateHandler;
 import com.android.launcher3.states.RotationHelper;
-import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.touch.ItemClickHandler;
 import com.android.launcher3.uioverrides.UiFactory;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
@@ -145,7 +149,7 @@
 import com.android.launcher3.widget.WidgetHostViewLoader;
 import com.android.launcher3.widget.WidgetListRowEntry;
 import com.android.launcher3.widget.WidgetsFullSheet;
-import com.android.launcher3.widget.custom.CustomWidgetParser;
+import com.android.launcher3.widget.custom.CustomWidgetManager;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
@@ -156,14 +160,11 @@
 import java.util.List;
 import java.util.function.Predicate;
 
-import androidx.annotation.Nullable;
-import androidx.annotation.VisibleForTesting;
-
 /**
  * Default launcher application.
  */
 public class Launcher extends BaseDraggingActivity implements LauncherExterns,
-        LauncherModel.Callbacks, LauncherProviderChangeListener, UserEventDelegate,
+        Callbacks, LauncherProviderChangeListener, UserEventDelegate,
         InvariantDeviceProfile.OnIDPChangeListener {
     public static final String TAG = "Launcher";
     static final boolean LOGD = false;
@@ -220,9 +221,11 @@
     private LauncherAppTransitionManager mAppTransitionManager;
     private Configuration mOldConfig;
 
-    @Thunk Workspace mWorkspace;
+    @Thunk
+    Workspace mWorkspace;
     private View mLauncherView;
-    @Thunk DragLayer mDragLayer;
+    @Thunk
+    DragLayer mDragLayer;
     private DragController mDragController;
 
     private AppWidgetManagerCompat mAppWidgetManager;
@@ -230,21 +233,25 @@
 
     private final int[] mTmpAddItemCellCoordinates = new int[2];
 
-    @Thunk Hotseat mHotseat;
+    @Thunk
+    Hotseat mHotseat;
 
     private DropTargetBar mDropTargetBar;
 
     // Main container view for the all apps screen.
-    @Thunk AllAppsContainerView mAppsView;
+    @Thunk
+    AllAppsContainerView mAppsView;
     AllAppsTransitionController mAllAppsController;
 
     // Scrim view for the all apps and overview state.
-    @Thunk ScrimView mScrimView;
+    @Thunk
+    ScrimView mScrimView;
 
     // UI and state for the overview panel
     private View mOverviewPanel;
 
-    @Thunk boolean mWorkspaceLoading = true;
+    @Thunk
+    boolean mWorkspaceLoading = true;
 
     private ArrayList<OnResumeCallback> mOnResumeCallbacks = new ArrayList<>();
 
@@ -326,8 +333,8 @@
         UiFactory.onCreate(this);
 
         mAppWidgetManager = AppWidgetManagerCompat.getInstance(this);
-
-        mAppWidgetHost = new LauncherAppWidgetHost(this);
+        mAppWidgetHost = new LauncherAppWidgetHost(this,
+                appWidgetId -> getWorkspace().removeWidget(appWidgetId));
         mAppWidgetHost.startListening();
 
         mLauncherView = LayoutInflater.from(this).inflate(R.layout.launcher, null);
@@ -389,7 +396,8 @@
         RaceConditionTracker.onEvent(ON_CREATE_EVT, EXIT);
         mStateManager.addStateListener(new LauncherStateManager.StateListener() {
             @Override
-            public void onStateTransitionStart(LauncherState toState) {}
+            public void onStateTransitionStart(LauncherState toState) {
+            }
 
             @Override
             public void onStateTransitionComplete(LauncherState finalState) {
@@ -419,10 +427,6 @@
     public void onConfigurationChanged(Configuration newConfig) {
         int diff = newConfig.diff(mOldConfig);
 
-        if ((diff & CONFIG_LOCALE) != 0) {
-            Folder.setLocaleDependentFields(getResources(), true /* force */);
-        }
-
         if ((diff & (CONFIG_ORIENTATION | CONFIG_SCREEN_SIZE)) != 0) {
             onIdpChanged(mDeviceProfile.inv);
         }
@@ -442,12 +446,16 @@
 
     @Override
     public void reapplyUi() {
+        reapplyUi(true /* cancelCurrentAnimation */);
+    }
+
+    public void reapplyUi(boolean cancelCurrentAnimation) {
         if (supportsFakeLandscapeUI()) {
             mRotationMode = mStableDeviceProfile == null
                     ? RotationMode.NORMAL : UiFactory.getRotationMode(mDeviceProfile);
         }
         getRootView().dispatchInsets();
-        getStateManager().reapplyState(true /* cancelCurrentAnimation */);
+        getStateManager().reapplyState(cancelCurrentAnimation);
     }
 
     @Override
@@ -497,6 +505,8 @@
         // Load configuration-specific DeviceProfile
         mDeviceProfile = idp.getDeviceProfile(this);
         if (isInMultiWindowMode()) {
+            // Note: Calls to getSize() can't rely on our cached DefaultDisplay since it can return
+            // the app window size
             Display display = getWindowManager().getDefaultDisplay();
             Point mwSize = new Point();
             display.getSize(mwSize);
@@ -548,6 +558,10 @@
         return mStateManager;
     }
 
+    public FolderNameProvider getFolderNameProvider() {
+        return new FolderNameProvider();
+    }
+
     @Override
     public <T extends View> T findViewById(int id) {
         return mLauncherView.findViewById(id);
@@ -604,10 +618,9 @@
         if (info.container >= 0) {
             View folderIcon = getWorkspace().getHomescreenIconByItemId(info.container);
             if (folderIcon instanceof FolderIcon && folderIcon.getTag() instanceof FolderInfo) {
-                FolderIconPreviewVerifier verifier =
-                        new FolderIconPreviewVerifier(getDeviceProfile().inv);
-                verifier.setFolderInfo((FolderInfo) folderIcon.getTag());
-                if (verifier.isItemInPreview(info.rank)) {
+                if (new FolderGridOrganizer(getDeviceProfile().inv)
+                        .setFolderInfo((FolderInfo) folderIcon.getTag())
+                        .isItemInPreview(info.rank)) {
                     folderIcon.invalidate();
                 }
             }
@@ -647,7 +660,8 @@
                             .getLauncherAppWidgetInfo(widgetId);
                     if (provider != null) {
                         new WidgetAddFlowHandler(provider)
-                                .startConfigActivity(this, widgetInfo, REQUEST_RECONFIGURE_APPWIDGET);
+                                .startConfigActivity(this, widgetInfo,
+                                        REQUEST_RECONFIGURE_APPWIDGET);
                     }
                 }
                 break;
@@ -835,7 +849,8 @@
         }
     }
 
-    @Thunk void completeTwoStageWidgetDrop(
+    @Thunk
+    void completeTwoStageWidgetDrop(
             final int resultCode, final int appWidgetId, final PendingRequestArgs requestArgs) {
         CellLayout cellLayout = mWorkspace.getScreenWithId(requestArgs.screenId);
         Runnable onCompleteRunnable = null;
@@ -932,15 +947,14 @@
         int containerType = mStateManager.getState().containerType;
         if (containerType == ContainerType.WORKSPACE && mWorkspace != null) {
             getUserEventDispatcher().logActionCommand(command,
-                containerType, -1, mWorkspace.isOverlayShown() ? -1 : 0);
+                    containerType, -1, mWorkspace.isOverlayShown() ? -1 : 0);
         } else {
             getUserEventDispatcher().logActionCommand(command, containerType, -1);
         }
 
     }
 
-    protected void onStateSet(LauncherState state) {
-        getAppWidgetHost().setResumed(state == LauncherState.NORMAL);
+    public void onStateSetStart(LauncherState state) {
         if (mDeferredResumePending) {
             handleDeferredResume();
         }
@@ -949,6 +963,12 @@
         }
     }
 
+    public void onStateSetEnd(LauncherState state) {
+        getAppWidgetHost().setResumed(state == LauncherState.NORMAL);
+        getWorkspace().setClipChildren(!state.disablePageClipping);
+        finishAutoCancelActionMode();
+    }
+
     @Override
     protected void onResume() {
         RaceConditionTracker.onEvent(ON_RESUME_EVT, ENTER);
@@ -1061,7 +1081,8 @@
             mStateManager.goToState(state, false /* animated */);
         }
 
-        PendingRequestArgs requestArgs = savedState.getParcelable(RUNTIME_STATE_PENDING_REQUEST_ARGS);
+        PendingRequestArgs requestArgs = savedState.getParcelable(
+                RUNTIME_STATE_PENDING_REQUEST_ARGS);
         if (requestArgs != null) {
             setWaitingForResult(requestArgs);
         }
@@ -1131,8 +1152,7 @@
      * Creates a view representing a shortcut inflated from the specified resource.
      *
      * @param parent The group the shortcut belongs to.
-     * @param info The data structure describing the shortcut.
-     *
+     * @param info   The data structure describing the shortcut.
      * @return A View inflated from layoutResId.
      */
     public View createShortcut(ViewGroup parent, WorkspaceItemInfo info) {
@@ -1234,7 +1254,8 @@
      *
      * @param appWidgetId The app widget id
      */
-    @Thunk void completeAddAppWidget(int appWidgetId, ItemInfo itemInfo,
+    @Thunk
+    void completeAddAppWidget(int appWidgetId, ItemInfo itemInfo,
             AppWidgetHostView hostView, LauncherAppWidgetProviderInfo appWidgetInfo) {
 
         if (appWidgetInfo == null) {
@@ -1352,7 +1373,9 @@
         return mSharedPrefs;
     }
 
-    public int getOrientation() { return mOldConfig.orientation; }
+    public int getOrientation() {
+        return mOldConfig.orientation;
+    }
 
     @Override
     protected void onNewIntent(Intent intent) {
@@ -1374,6 +1397,7 @@
             if (!internalStateHandled) {
                 // In all these cases, only animate if we're already on home
                 AbstractFloatingView.closeAllOpenViews(this, isStarted());
+                UiFactory.closeSystemWindows();
 
                 if (!isInState(NORMAL)) {
                     // Only change state, if not already the same. This prevents cancelling any
@@ -1436,9 +1460,10 @@
             outState.remove(RUNTIME_STATE_WIDGET_PANEL);
         }
 
-        // We close any open folders and shortcut containers since they will not be re-opened,
+        // We close any open folders and shortcut containers that are not safe for rebind,
         // and we need to make sure this state is reflected.
-        AbstractFloatingView.closeAllOpenViews(this, false);
+        AbstractFloatingView.closeOpenViews(this, false, TYPE_ALL & ~TYPE_REBIND_SAFE);
+        finishAutoCancelActionMode();
 
         if (mPendingRequestArgs != null) {
             outState.putParcelable(RUNTIME_STATE_PENDING_REQUEST_ARGS, mPendingRequestArgs);
@@ -1575,7 +1600,8 @@
 
     void addAppWidgetImpl(int appWidgetId, ItemInfo info,
             AppWidgetHostView boundWidget, WidgetAddFlowHandler addFlowHandler, int delay) {
-        if (!addFlowHandler.startConfigActivity(this, appWidgetId, info, REQUEST_CREATE_APPWIDGET)) {
+        if (!addFlowHandler.startConfigActivity(this, appWidgetId, info,
+                REQUEST_CREATE_APPWIDGET)) {
             // If the configuration flow was not started, add the widget
 
             Runnable onComplete = new Runnable() {
@@ -1585,7 +1611,8 @@
                     mStateManager.goToState(NORMAL, SPRING_LOADED_EXIT_DELAY);
                 }
             };
-            completeAddAppWidget(appWidgetId, info, boundWidget, addFlowHandler.getProviderInfo(this));
+            completeAddAppWidget(appWidgetId, info, boundWidget,
+                    addFlowHandler.getProviderInfo(this));
             mWorkspace.removeExtraEmptyScreenDelayed(true, onComplete, delay, false);
         }
     }
@@ -1611,7 +1638,7 @@
                 break;
             default:
                 throw new IllegalStateException("Unknown item type: " + info.itemType);
-            }
+        }
     }
 
     /**
@@ -1647,10 +1674,9 @@
         } else {
             // In this case, we either need to start an activity to get permission to bind
             // the widget, or we need to start an activity to configure the widget, or both.
-            if (FeatureFlags.ENABLE_CUSTOM_WIDGETS &&
-                    info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET) {
-                appWidgetId = CustomWidgetParser.getWidgetIdForCustomProvider(
-                        this, info.componentName);
+            if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET) {
+                appWidgetId = CustomWidgetManager.INSTANCE.get(this).getWidgetIdForCustomProvider(
+                        info.componentName);
             } else {
                 appWidgetId = getAppWidgetHost().allocateAppWidgetId();
             }
@@ -1669,7 +1695,7 @@
     FolderIcon addFolder(CellLayout layout, int container, final int screenId, int cellX,
             int cellY) {
         final FolderInfo folderInfo = new FolderInfo();
-        folderInfo.title = getText(R.string.folder_name);
+        folderInfo.title = "";
 
         // Update the model
         getModelWriter().addItemToDatabase(folderInfo, container, screenId, cellX, cellY);
@@ -1723,8 +1749,6 @@
         return true;
     }
 
-
-
     @Override
     public boolean dispatchKeyEvent(KeyEvent event) {
         return (event.getKeyCode() == KeyEvent.KEYCODE_HOME) || super.dispatchKeyEvent(event);
@@ -1788,7 +1812,7 @@
 
     @Override
     public int getCurrentState() {
-        if(mStateManager.getState() == LauncherState.ALL_APPS) {
+        if (mStateManager.getState() == LauncherState.ALL_APPS) {
             return StatsLogUtils.LAUNCHER_STATE_ALLAPPS;
         } else if (mStateManager.getState() == OVERVIEW) {
             return StatsLogUtils.LAUNCHER_STATE_OVERVIEW;
@@ -1923,8 +1947,7 @@
         // Floating panels (except the full widget sheet) are associated with individual icons. If
         // we are starting a fresh bind, close all such panels as all the icons are about
         // to go away.
-        AbstractFloatingView.closeOpenViews(this, true,
-                AbstractFloatingView.TYPE_ALL & ~AbstractFloatingView.TYPE_REBIND_SAFE);
+        AbstractFloatingView.closeOpenViews(this, true, TYPE_ALL & ~TYPE_REBIND_SAFE);
 
         setWorkspaceLoading(true);
 
@@ -2052,7 +2075,7 @@
                     throw new RuntimeException("Invalid Item Type");
             }
 
-             /*
+            /*
              * Remove colliding items.
              */
             if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) {
@@ -2124,6 +2147,14 @@
     }
 
     private View inflateAppWidget(LauncherAppWidgetInfo item) {
+        if (item.hasOptionFlag(LauncherAppWidgetInfo.OPTION_SEARCH_WIDGET)) {
+            item.providerName = QsbContainerView.getSearchComponentName(this);
+            if (item.providerName == null) {
+                getModelWriter().deleteItemFromDatabase(item);
+                return null;
+            }
+        }
+
         if (mIsSafeModeEnabled) {
             PendingAppWidgetHostView view =
                     new PendingAppWidgetHostView(this, item, mIconCache, true);
@@ -2170,7 +2201,8 @@
                     pendingInfo.spanY = item.spanY;
                     pendingInfo.minSpanX = item.minSpanX;
                     pendingInfo.minSpanY = item.minSpanY;
-                    Bundle options = WidgetHostViewLoader.getDefaultOptionsForWidget(this, pendingInfo);
+                    Bundle options = WidgetHostViewLoader.getDefaultOptionsForWidget(this,
+                            pendingInfo);
 
                     boolean isDirectConfig =
                             item.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_DIRECT_CONFIG);
@@ -2324,6 +2356,11 @@
         // override the previous page so we don't log the page switch.
         mWorkspace.setCurrentPage(pageBoundFirst, pageBoundFirst /* overridePrevPage */);
 
+        // Cache one page worth of icons
+        getViewCache().setCacheSize(R.layout.folder_application,
+                mDeviceProfile.inv.numFolderColumns * mDeviceProfile.inv.numFolderRows);
+        getViewCache().setCacheSize(R.layout.folder_page, 2);
+
         TraceHelper.endSection("finishBindingItems");
     }
 
@@ -2345,7 +2382,7 @@
      *
      * Implementation of the method from LauncherModel.Callbacks.
      */
-    public void bindAllApplications(ArrayList<AppInfo> apps) {
+    public void bindAllApplications(AppInfo[] apps) {
         mAppsView.getAppsStore().setApps(apps);
     }
 
@@ -2358,16 +2395,6 @@
         mPopupDataProvider.setDeepShortcutMap(deepShortcutMapCopy);
     }
 
-    /**
-     * A package was updated.
-     *
-     * Implementation of the method from LauncherModel.Callbacks.
-     */
-    @Override
-    public void bindAppsAddedOrUpdated(ArrayList<AppInfo> apps) {
-        mAppsView.getAppsStore().addOrUpdateApps(apps);
-    }
-
     @Override
     public void bindPromiseAppProgressUpdated(PromiseAppInfo app) {
         mAppsView.getAppsStore().updatePromiseAppProgress(app);
@@ -2415,11 +2442,6 @@
     }
 
     @Override
-    public void bindAppInfosRemoved(final ArrayList<AppInfo> appInfos) {
-        mAppsView.getAppsStore().removeApps(appInfos);
-    }
-
-    @Override
     public void bindAllWidgets(final ArrayList<WidgetListRowEntry> allWidgets) {
         mPopupDataProvider.setAllWidgets(allWidgets);
     }
@@ -2464,14 +2486,16 @@
         }
 
         writer.println(prefix + "Misc:");
-        writer.print(prefix + "\tmWorkspaceLoading=" + mWorkspaceLoading);
-        writer.print(" mPendingRequestArgs=" + mPendingRequestArgs);
-        writer.println(" mPendingActivityResult=" + mPendingActivityResult);
-        writer.println(" mRotationHelper: " + mRotationHelper);
+        dumpMisc(prefix + "\t", writer);
+        writer.println(prefix + "\tmWorkspaceLoading=" + mWorkspaceLoading);
+        writer.println(prefix + "\tmPendingRequestArgs=" + mPendingRequestArgs
+                + " mPendingActivityResult=" + mPendingActivityResult);
+        writer.println(prefix + "\tmRotationHelper: " + mRotationHelper);
+        writer.println(prefix + "\tmAppWidgetHost.isListening: " + mAppWidgetHost.isListening());
+
         // Extra logging for b/116853349
         mDragLayer.dump(prefix, writer);
         mStateManager.dump(prefix, writer);
-        dumpMisc(writer);
 
         try {
             FileLog.flushAll(writer);
@@ -2532,8 +2556,8 @@
                     if (focusedView instanceof BubbleTextView
                             && focusedView.getTag() instanceof ItemInfo
                             && mAccessibilityDelegate.performAction(focusedView,
-                                    (ItemInfo) focusedView.getTag(),
-                                    LauncherAccessibilityDelegate.DEEP_SHORTCUTS)) {
+                            (ItemInfo) focusedView.getTag(),
+                            LauncherAccessibilityDelegate.DEEP_SHORTCUTS)) {
                         PopupContainerWithArrow.getOpen(this).requestFocus();
                         return true;
                     }
@@ -2578,6 +2602,12 @@
         return (Launcher) fromContext(context);
     }
 
+    @Override
+    public void returnToHomescreen() {
+        super.returnToHomescreen();
+        getStateManager().goToState(LauncherState.NORMAL);
+    }
+
     /**
      * Just a wrapper around the type cast to allow easier tracking of calls.
      */
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index b4a2216..d70abc2 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -37,6 +37,7 @@
 import com.android.launcher3.util.MainThreadInitializedObject;
 import com.android.launcher3.util.Preconditions;
 import com.android.launcher3.util.SecureSettingsObserver;
+import com.android.launcher3.widget.custom.CustomWidgetManager;
 
 public class LauncherAppState {
 
@@ -149,6 +150,8 @@
     LauncherModel setLauncher(Launcher launcher) {
         getLocalProvider(mContext).setLauncherProviderChangeListener(launcher);
         mModel.initialize(launcher);
+        CustomWidgetManager.INSTANCE.get(launcher)
+                .setWidgetRefreshCallback(mModel::refreshAndBindWidgetsAndShortcuts);
         return mModel;
     }
 
diff --git a/src/com/android/launcher3/LauncherAppWidgetHost.java b/src/com/android/launcher3/LauncherAppWidgetHost.java
index 7f5ac52..1215d43 100644
--- a/src/com/android/launcher3/LauncherAppWidgetHost.java
+++ b/src/com/android/launcher3/LauncherAppWidgetHost.java
@@ -27,14 +27,15 @@
 import android.content.Intent;
 import android.os.Handler;
 import android.util.SparseArray;
-import android.view.LayoutInflater;
 import android.widget.Toast;
 
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.widget.DeferredAppWidgetHostView;
 import com.android.launcher3.widget.LauncherAppWidgetHostView;
+import com.android.launcher3.widget.custom.CustomWidgetManager;
 
 import java.util.ArrayList;
+import java.util.function.IntConsumer;
 
 
 /**
@@ -56,9 +57,17 @@
     private final Context mContext;
     private int mFlags = FLAG_RESUMED;
 
+    private IntConsumer mAppWidgetRemovedCallback = null;
+
     public LauncherAppWidgetHost(Context context) {
+        this(context, null);
+    }
+
+    public LauncherAppWidgetHost(Context context,
+            IntConsumer appWidgetRemovedCallback) {
         super(context, APPWIDGET_HOST_ID);
         mContext = context;
+        mAppWidgetRemovedCallback = appWidgetRemovedCallback;
     }
 
     @Override
@@ -105,6 +114,10 @@
         super.stopListening();
     }
 
+    public boolean isListening() {
+        return (mFlags & FLAG_LISTENING) != 0;
+    }
+
     /**
      * Updates the resumed state of the host.
      * When a host is not resumed, it defers calls to startListening until host is resumed again.
@@ -180,10 +193,8 @@
             LauncherAppWidgetProviderInfo appWidget) {
         if (appWidget.isCustomWidget()) {
             LauncherAppWidgetHostView lahv = new LauncherAppWidgetHostView(context);
-            LayoutInflater inflater = (LayoutInflater)
-                    context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
-            inflater.inflate(appWidget.initialLayout, lahv);
             lahv.setAppWidget(0, appWidget);
+            CustomWidgetManager.INSTANCE.get(context).onViewCreated(lahv);
             return lahv;
         } else if ((mFlags & FLAG_LISTENING) == 0) {
             DeferredAppWidgetHostView view = new DeferredAppWidgetHostView(context);
@@ -207,7 +218,7 @@
                 }
                 view.setAppWidget(appWidgetId, appWidget);
                 view.switchToErrorView();
-                return  view;
+                return view;
             }
         }
     }
@@ -225,6 +236,18 @@
         info.initSpans(mContext);
     }
 
+    /**
+     * Called on an appWidget is removed for a widgetId
+     * @param appWidgetId
+     * TODO: make this override when SDK is updated
+     */
+    public void onAppWidgetRemoved(int appWidgetId) {
+        if (mAppWidgetRemovedCallback == null) {
+            return;
+        }
+        mAppWidgetRemovedCallback.accept(appWidgetId);
+    }
+
     @Override
     public void deleteAppWidgetId(int appWidgetId) {
         super.deleteAppWidgetId(appWidgetId);
diff --git a/src/com/android/launcher3/LauncherAppWidgetInfo.java b/src/com/android/launcher3/LauncherAppWidgetInfo.java
index 051846c..b824301 100644
--- a/src/com/android/launcher3/LauncherAppWidgetInfo.java
+++ b/src/com/android/launcher3/LauncherAppWidgetInfo.java
@@ -29,6 +29,9 @@
  */
 public class LauncherAppWidgetInfo extends ItemInfo {
 
+    public static final int OPTION_SEARCH_WIDGET = 1;
+
+
     public static final int RESTORE_COMPLETED = 0;
 
     /**
@@ -97,6 +100,11 @@
     public Intent bindOptions;
 
     /**
+     * Widget options
+     */
+    public int options;
+
+    /**
      * Nonnull for pending widgets. We use this to get the icon and title for the widget.
      */
     public PackageItemInfo pendingItemInfo;
@@ -137,6 +145,7 @@
         writer.put(LauncherSettings.Favorites.APPWIDGET_ID, appWidgetId)
                 .put(LauncherSettings.Favorites.APPWIDGET_PROVIDER, providerName.flattenToString())
                 .put(LauncherSettings.Favorites.RESTORED, restoreStatus)
+                .put(LauncherSettings.Favorites.OPTIONS, options)
                 .put(LauncherSettings.Favorites.INTENT, bindOptions);
     }
 
@@ -164,4 +173,13 @@
     public final boolean hasRestoreFlag(int flag) {
         return (restoreStatus & flag) == flag;
     }
+
+    /**
+     * returns if widget options include an option or not
+     * @param option
+     * @return
+     */
+    public final boolean hasOptionFlag(int option) {
+        return (options & option) != 0;
+    }
 }
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index a041489..a012412 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -18,29 +18,32 @@
 
 import static com.android.launcher3.LauncherAppState.ACTION_FORCE_ROLOAD;
 import static com.android.launcher3.config.FeatureFlags.IS_DOGFOOD_BUILD;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
 import android.content.BroadcastReceiver;
-import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ShortcutInfo;
-import android.os.Handler;
-import android.os.HandlerThread;
-import android.os.Looper;
 import android.os.Process;
 import android.os.UserHandle;
 import android.text.TextUtils;
 import android.util.Log;
 import android.util.Pair;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.icons.LauncherIcons;
+import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.model.AddWorkspaceItemsTask;
+import com.android.launcher3.model.AllAppsList;
 import com.android.launcher3.model.BaseModelUpdateTask;
 import com.android.launcher3.model.BgDataModel;
+import com.android.launcher3.model.BgDataModel.Callbacks;
 import com.android.launcher3.model.CacheDataUpdatedTask;
 import com.android.launcher3.model.LoaderResults;
 import com.android.launcher3.model.LoaderTask;
@@ -50,29 +53,22 @@
 import com.android.launcher3.model.ShortcutsChangedTask;
 import com.android.launcher3.model.UserLockStateChangedTask;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
-import com.android.launcher3.util.ComponentKey;
-import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSparseArrayMap;
 import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.util.Preconditions;
 import com.android.launcher3.util.Thunk;
-import com.android.launcher3.util.ViewOnDrawExecutor;
-import com.android.launcher3.widget.WidgetListRowEntry;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.concurrent.CancellationException;
 import java.util.concurrent.Executor;
 import java.util.function.Supplier;
 
-import androidx.annotation.Nullable;
-
 /**
  * Maintains in-memory state of the Launcher. It is expected that there should be only one
  * LauncherModel object held in a static. Also provide APIs for updating the database state
@@ -84,21 +80,12 @@
 
     static final String TAG = "Launcher.Model";
 
-    private final MainThreadExecutor mUiExecutor = new MainThreadExecutor();
     @Thunk final LauncherAppState mApp;
     @Thunk final Object mLock = new Object();
     @Thunk
     LoaderTask mLoaderTask;
     @Thunk boolean mIsLoaderTaskRunning;
 
-    @Thunk static final HandlerThread sWorkerThread = new HandlerThread("launcher-loader");
-    private static final Looper mWorkerLooper;
-    static {
-        sWorkerThread.start();
-        mWorkerLooper = sWorkerThread.getLooper();
-    }
-    @Thunk static final Handler sWorker = new Handler(mWorkerLooper);
-
     // Indicates whether the current model data is valid or not.
     // We start off with everything not loaded. After that, we assume that
     // our monitoring of the package manager provides all updates and we never
@@ -135,33 +122,6 @@
         }
     };
 
-    public interface Callbacks {
-        public void rebindModel();
-
-        public int getCurrentWorkspaceScreen();
-        public void clearPendingBinds();
-        public void startBinding();
-        public void bindItems(List<ItemInfo> shortcuts, boolean forceAnimateIcons);
-        public void bindScreens(IntArray orderedScreenIds);
-        public void finishFirstPageBind(ViewOnDrawExecutor executor);
-        public void finishBindingItems(int pageBoundFirst);
-        public void bindAllApplications(ArrayList<AppInfo> apps);
-        public void bindAppsAddedOrUpdated(ArrayList<AppInfo> apps);
-        public void preAddApps();
-        public void bindAppsAdded(IntArray newScreens,
-                ArrayList<ItemInfo> addNotAnimated, ArrayList<ItemInfo> addAnimated);
-        public void bindPromiseAppProgressUpdated(PromiseAppInfo app);
-        public void bindWorkspaceItemsChanged(ArrayList<WorkspaceItemInfo> updated);
-        public void bindWidgetsRestored(ArrayList<LauncherAppWidgetInfo> widgets);
-        public void bindRestoreItemsChange(HashSet<ItemInfo> updates);
-        public void bindWorkspaceComponentsRemoved(ItemInfoMatcher matcher);
-        public void bindAppInfosRemoved(ArrayList<AppInfo> appInfos);
-        public void bindAllWidgets(ArrayList<WidgetListRowEntry> widgets);
-        public void onPageBoundSynchronously(int page);
-        public void executeOnNextDraw(ViewOnDrawExecutor executor);
-        public void bindDeepShortcutMap(HashMap<ComponentKey, Integer> deepShortcutMap);
-    }
-
     LauncherModel(LauncherAppState app, IconCache iconCache, AppFilter appFilter) {
         mApp = app;
         mBgAllAppsList = new AllAppsList(iconCache, appFilter);
@@ -174,11 +134,11 @@
     /**
      * Updates the icons and label of all pending icons for the provided package name.
      */
-    public void updateSessionDisplayInfo(final String packageName) {
+    public void updateSessionDisplayInfo(final String packageName, final UserHandle user) {
         HashSet<String> packages = new HashSet<>();
         packages.add(packageName);
         enqueueModelUpdateTask(new CacheDataUpdatedTask(
-                CacheDataUpdatedTask.OP_SESSION_UPDATE, Process.myUserHandle(), packages));
+                CacheDataUpdatedTask.OP_SESSION_UPDATE, user, packages));
     }
 
     /**
@@ -244,6 +204,7 @@
 
     public void onPackagesRemoved(UserHandle user, String... packages) {
         int op = PackageUpdatedTask.OP_REMOVE;
+        FileLog.d(TAG, "package removed received " + String.join("," + packages));
         enqueueModelUpdateTask(new PackageUpdatedTask(op, user, packages));
     }
 
@@ -299,7 +260,6 @@
     @Override
     public void onReceive(Context context, Intent intent) {
         if (DEBUG_RECEIVER) Log.d(TAG, "onReceive intent=" + intent);
-
         final String action = intent.getAction();
         if (Intent.ACTION_LOCALE_CHANGED.equals(action)) {
             // If we have changed locale we need to clear out the labels in all apps/workspace.
@@ -375,7 +335,7 @@
             if (mCallbacks != null && mCallbacks.get() != null) {
                 final Callbacks oldCallbacks = mCallbacks.get();
                 // Clear any pending bind-runnables from the synchronized load process.
-                mUiExecutor.execute(oldCallbacks::clearPendingBinds);
+                MAIN_EXECUTOR.execute(oldCallbacks::clearPendingBinds);
 
                 // If there is already one running, tell it to stop.
                 stopLoader();
@@ -419,7 +379,7 @@
 
             // Always post the loader task, instead of running directly (even on same thread) so
             // that we exit any nested synchronized blocks
-            sWorker.post(mLoaderTask);
+            MODEL_EXECUTOR.post(mLoaderTask);
         }
     }
 
@@ -437,16 +397,7 @@
             @Override
             public void execute(LauncherAppState app, BgDataModel dataModel, AllAppsList apps) {
                 apps.addPromiseApp(app.getContext(), sessionInfo);
-                if (!apps.added.isEmpty()) {
-                    final ArrayList<AppInfo> arrayList = new ArrayList<>(apps.added);
-                    apps.added.clear();
-                    scheduleCallbackTask(new CallbackTask() {
-                        @Override
-                        public void execute(Callbacks callbacks) {
-                            callbacks.bindAppsAddedOrUpdated(arrayList);
-                        }
-                    });
-                }
+                bindApplicationsIfNeeded();
             }
         });
     }
@@ -495,8 +446,8 @@
      * use partial updates similar to {@link UserManagerCompat}
      */
     public void refreshShortcutsIfRequired() {
-        sWorker.removeCallbacks(mShortcutPermissionCheckRunnable);
-        sWorker.post(mShortcutPermissionCheckRunnable);
+        MODEL_EXECUTOR.getHandler().removeCallbacks(mShortcutPermissionCheckRunnable);
+        MODEL_EXECUTOR.post(mShortcutPermissionCheckRunnable);
     }
 
     /**
@@ -523,14 +474,8 @@
     }
 
     public void enqueueModelUpdateTask(ModelUpdateTask task) {
-        task.init(mApp, this, sBgDataModel, mBgAllAppsList, mUiExecutor);
-
-        if (sWorkerThread.getThreadId() == Process.myTid()) {
-            task.run();
-        } else {
-            // If we are not on the worker thread, then post to the worker handler
-            sWorker.post(task);
-        }
+        task.init(mApp, this, sBgDataModel, mBgAllAppsList, MAIN_EXECUTOR);
+        MODEL_EXECUTOR.execute(task);
     }
 
     /**
@@ -605,15 +550,4 @@
     public Callbacks getCallback() {
         return mCallbacks != null ? mCallbacks.get() : null;
     }
-
-    /**
-     * @return the looper for the worker thread which can be used to start background tasks.
-     */
-    public static Looper getWorkerLooper() {
-        return mWorkerLooper;
-    }
-
-    public static void setWorkerPriority(final int priority) {
-        Process.setThreadPriority(sWorkerThread.getThreadId(), priority);
-    }
 }
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index 6ad5c36..6081300 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -33,7 +33,6 @@
 import android.content.Intent;
 import android.content.OperationApplicationException;
 import android.content.SharedPreferences;
-import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.ProviderInfo;
 import android.content.res.Resources;
 import android.database.Cursor;
@@ -50,7 +49,6 @@
 import android.os.Message;
 import android.os.Process;
 import android.os.UserHandle;
-import android.os.UserManager;
 import android.provider.BaseColumns;
 import android.provider.Settings;
 import android.text.TextUtils;
@@ -70,6 +68,7 @@
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSet;
 import com.android.launcher3.util.NoLocaleSQLiteHelper;
+import com.android.launcher3.util.PackageManagerHelper;
 import com.android.launcher3.util.Preconditions;
 import com.android.launcher3.util.Thunk;
 
@@ -77,7 +76,6 @@
 
 import java.io.File;
 import java.io.FileDescriptor;
-import java.io.IOException;
 import java.io.InputStream;
 import java.io.PrintWriter;
 import java.io.StringReader;
@@ -873,7 +871,7 @@
                         continue;
                     }
 
-                    if (!Utilities.isLauncherAppTarget(intent)) {
+                    if (!PackageManagerHelper.isLauncherAppTarget(intent)) {
                         continue;
                     }
 
diff --git a/src/com/android/launcher3/LauncherSettings.java b/src/com/android/launcher3/LauncherSettings.java
index e248ba0..c509680 100644
--- a/src/com/android/launcher3/LauncherSettings.java
+++ b/src/com/android/launcher3/LauncherSettings.java
@@ -59,6 +59,10 @@
         public static final String ITEM_TYPE = "itemType";
 
         /**
+         * The gesture is a package
+         */
+        public static final int ITEM_TYPE_NON_ACTIONABLE = -1;
+        /**
          * The gesture is an application
          */
         public static final int ITEM_TYPE_APPLICATION = 0;
@@ -122,11 +126,13 @@
          */
         public static final int CONTAINER_DESKTOP = -100;
         public static final int CONTAINER_HOTSEAT = -101;
+        public static final int CONTAINER_PREDICTION = -102;
 
         static final String containerToString(int container) {
             switch (container) {
                 case CONTAINER_DESKTOP: return "desktop";
                 case CONTAINER_HOTSEAT: return "hotseat";
+                case CONTAINER_PREDICTION: return "prediction";
                 default: return String.valueOf(container);
             }
         }
diff --git a/src/com/android/launcher3/LauncherStateManager.java b/src/com/android/launcher3/LauncherStateManager.java
index d66e581..f673508 100644
--- a/src/com/android/launcher3/LauncherStateManager.java
+++ b/src/com/android/launcher3/LauncherStateManager.java
@@ -24,7 +24,8 @@
 import android.animation.AnimatorSet;
 import android.os.Handler;
 import android.os.Looper;
-import android.util.Log;
+
+import androidx.annotation.IntDef;
 
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
@@ -32,7 +33,6 @@
 import com.android.launcher3.anim.PropertySetter;
 import com.android.launcher3.anim.PropertySetter.AnimatedPropertySetter;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
-import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.uioverrides.UiFactory;
 
 import java.io.PrintWriter;
@@ -40,8 +40,6 @@
 import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
 
-import androidx.annotation.IntDef;
-
 /**
  * TODO: figure out what kind of tests we can write for this
  *
@@ -136,7 +134,7 @@
     }
 
     public void dump(String prefix, PrintWriter writer) {
-        writer.println(prefix + "LauncherState");
+        writer.println(prefix + "LauncherState:");
         writer.println(prefix + "\tmLastStableState:" + mLastStableState);
         writer.println(prefix + "\tmCurrentStableState:" + mCurrentStableState);
         writer.println(prefix + "\tmState:" + mState);
@@ -408,7 +406,7 @@
         }
         mState = state;
         mState.onStateEnabled(mLauncher);
-        mLauncher.onStateSet(mState);
+        mLauncher.onStateSetStart(mState);
 
         if (state.disablePageClipping) {
             // Only disable clipping if needed, otherwise leave it as previous value.
@@ -429,8 +427,7 @@
         }
 
         state.onStateTransitionEnd(mLauncher);
-        mLauncher.getWorkspace().setClipChildren(!state.disablePageClipping);
-        mLauncher.finishAutoCancelActionMode();
+        mLauncher.onStateSetEnd(state);
 
         if (state == NORMAL) {
             setRestState(null);
diff --git a/src/com/android/launcher3/MainThreadExecutor.java b/src/com/android/launcher3/MainThreadExecutor.java
deleted file mode 100644
index 5094682..0000000
--- a/src/com/android/launcher3/MainThreadExecutor.java
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
- */
-
-package com.android.launcher3;
-
-import android.os.Looper;
-
-import com.android.launcher3.util.LooperExecutor;
-
-/**
- * An executor service that executes its tasks on the main thread.
- *
- * Shutting down this executor is not supported.
- */
-public class MainThreadExecutor extends LooperExecutor {
-
-    public MainThreadExecutor() {
-        super(Looper.getMainLooper());
-    }
-}
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index 70b55a4..ff2b400 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -1088,7 +1088,9 @@
         if (mFreeScroll) {
             setCurrentPage(getNextPage());
         } else if (wasFreeScroll) {
-            snapToPage(getNextPage());
+            if (getScrollForPage(getNextPage()) != getScrollX()) {
+                snapToPage(getNextPage());
+            }
         }
     }
 
@@ -1294,6 +1296,10 @@
         if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) {
             switch (event.getAction()) {
                 case MotionEvent.ACTION_SCROLL: {
+                    Launcher launcher = Launcher.getLauncher(getContext());
+                    if (launcher != null) {
+                        AbstractFloatingView.closeAllOpenViews(launcher);
+                    }
                     // Handle mouse (or ext. device) by shifting the page depending on the scroll
                     final float vscroll;
                     final float hscroll;
@@ -1304,6 +1310,9 @@
                         vscroll = -event.getAxisValue(MotionEvent.AXIS_VSCROLL);
                         hscroll = event.getAxisValue(MotionEvent.AXIS_HSCROLL);
                     }
+                    if (Math.abs(vscroll) > Math.abs(hscroll) && !isVerticalScrollable()) {
+                        return true;
+                    }
                     if (hscroll != 0 || vscroll != 0) {
                         boolean isForwardScroll = mIsRtl ? (hscroll < 0 || vscroll < 0)
                                                          : (hscroll > 0 || vscroll > 0);
@@ -1320,6 +1329,10 @@
         return super.onGenericMotionEvent(event);
     }
 
+    protected boolean isVerticalScrollable() {
+        return true;
+    }
+
     private void acquireVelocityTrackerAndAddMovement(MotionEvent ev) {
         if (mVelocityTracker == null) {
             mVelocityTracker = VelocityTracker.obtain();
@@ -1537,7 +1550,7 @@
             snapToPage(getNextPage() - 1);
             return true;
         }
-        return false;
+        return onOverscroll(-getMeasuredWidth());
     }
 
     public boolean scrollRight() {
@@ -1545,7 +1558,15 @@
             snapToPage(getNextPage() + 1);
             return true;
         }
-        return false;
+        return onOverscroll(getMeasuredWidth());
+    }
+
+    protected boolean onOverscroll(int amount) {
+        if (!mAllowOverScroll) return false;
+        onScrollInteractionBegin();
+        overScroll(amount);
+        onScrollInteractionEnd();
+        return true;
     }
 
     @Override
@@ -1565,8 +1586,9 @@
     public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
         super.onInitializeAccessibilityNodeInfo(info);
         final boolean pagesFlipped = isPageOrderFlipped();
-        info.setScrollable(getPageCount() > 1);
-        if (getCurrentPage() < getPageCount() - 1) {
+        int offset = (mAllowOverScroll ? 0 : 1);
+        info.setScrollable(getPageCount() > offset);
+        if (getCurrentPage() < getPageCount() - offset) {
             info.addAction(pagesFlipped ?
                 AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD
                 : AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD);
@@ -1574,7 +1596,7 @@
                 AccessibilityNodeInfo.AccessibilityAction.ACTION_PAGE_LEFT
                 : AccessibilityNodeInfo.AccessibilityAction.ACTION_PAGE_RIGHT);
         }
-        if (getCurrentPage() > 0) {
+        if (getCurrentPage() >= offset) {
             info.addAction(pagesFlipped ?
                 AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD
                 : AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD);
@@ -1582,7 +1604,6 @@
                 AccessibilityNodeInfo.AccessibilityAction.ACTION_PAGE_RIGHT
                 : AccessibilityNodeInfo.AccessibilityAction.ACTION_PAGE_LEFT);
         }
-
         // Accessibility-wise, PagedView doesn't support long click, so disabling it.
         // Besides disabling the accessibility long-click, this also prevents this view from getting
         // accessibility focus.
@@ -1601,7 +1622,7 @@
     @Override
     public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
         super.onInitializeAccessibilityEvent(event);
-        event.setScrollable(getPageCount() > 1);
+        event.setScrollable(mAllowOverScroll || getPageCount() > 1);
     }
 
     @Override
diff --git a/src/com/android/launcher3/Partner.java b/src/com/android/launcher3/Partner.java
index 380078b..af5402a 100644
--- a/src/com/android/launcher3/Partner.java
+++ b/src/com/android/launcher3/Partner.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3;
 
+import static com.android.launcher3.util.PackageManagerHelper.findSystemApk;
+
 import android.content.pm.PackageManager;
 import android.content.res.Resources;
 import android.util.DisplayMetrics;
@@ -59,7 +61,7 @@
      */
     public static synchronized Partner get(PackageManager pm) {
         if (!sSearched) {
-            Pair<String, Resources> apkInfo = Utilities.findSystemApk(ACTION_PARTNER_CUSTOMIZATION, pm);
+            Pair<String, Resources> apkInfo = findSystemApk(ACTION_PARTNER_CUSTOMIZATION, pm);
             if (apkInfo != null) {
                 sPartner = new Partner(apkInfo.first, apkInfo.second);
             }
diff --git a/src/com/android/launcher3/SecondaryDropTarget.java b/src/com/android/launcher3/SecondaryDropTarget.java
index 55cb6f2..c8c590d 100644
--- a/src/com/android/launcher3/SecondaryDropTarget.java
+++ b/src/com/android/launcher3/SecondaryDropTarget.java
@@ -2,6 +2,7 @@
 
 import static android.appwidget.AppWidgetManager.INVALID_APPWIDGET_ID;
 import static android.appwidget.AppWidgetProviderInfo.WIDGET_FEATURE_RECONFIGURABLE;
+
 import static com.android.launcher3.ItemInfoWithIcon.FLAG_SYSTEM_MASK;
 import static com.android.launcher3.ItemInfoWithIcon.FLAG_SYSTEM_NO;
 import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_DESKTOP;
@@ -29,6 +30,7 @@
 import com.android.launcher3.Launcher.OnResumeCallback;
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.dragndrop.DragOptions;
+import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.logging.LoggerUtils;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ControlType;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
@@ -240,6 +242,7 @@
                     .setData(Uri.fromParts("package", cn.getPackageName(), cn.getClassName()))
                     .putExtra(Intent.EXTRA_USER, info.user);
             mLauncher.startActivity(i);
+            FileLog.d(TAG, "start uninstall activity " + cn.getPackageName());
             return cn;
         } catch (URISyntaxException e) {
             Log.e(TAG, "Failed to parse intent to start uninstall activity for item=" + info);
diff --git a/src/com/android/launcher3/SessionCommitReceiver.java b/src/com/android/launcher3/SessionCommitReceiver.java
index b4078ee..a87c446 100644
--- a/src/com/android/launcher3/SessionCommitReceiver.java
+++ b/src/com/android/launcher3/SessionCommitReceiver.java
@@ -22,7 +22,6 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
-import android.content.pm.ApplicationInfo;
 import android.content.pm.LauncherActivityInfo;
 import android.content.pm.PackageInstaller;
 import android.content.pm.PackageInstaller.SessionInfo;
@@ -39,6 +38,7 @@
 import android.util.Log;
 
 import com.android.launcher3.compat.LauncherAppsCompat;
+import com.android.launcher3.util.Executors;
 import com.android.launcher3.compat.PackageInstallerCompat;
 
 import java.util.List;
@@ -71,8 +71,13 @@
 
         SessionInfo info = intent.getParcelableExtra(PackageInstaller.EXTRA_SESSION);
         UserHandle user = intent.getParcelableExtra(Intent.EXTRA_USER);
-        PackageInstallerCompat packageInstallerCompat = PackageInstallerCompat.getInstance(context);
+        if (!PackageInstaller.ACTION_SESSION_COMMITTED.equals(intent.getAction())
+                || info == null || user == null) {
+            // Invalid intent.
+            return;
+        }
 
+        PackageInstallerCompat packageInstallerCompat = PackageInstallerCompat.getInstance(context);
         if (TextUtils.isEmpty(info.getAppPackageName())
                 || info.getInstallReason() != PackageManager.INSTALL_REASON_USER
                 || packageInstallerCompat.promiseIconAddedForId(info.getSessionId())) {
@@ -133,7 +138,7 @@
             // grid.
             prefs.edit().putBoolean(ADD_ICON_PREFERENCE_KEY, true).apply();
         } else if (!prefs.contains(ADD_ICON_PREFERENCE_INITIALIZED_KEY)) {
-            new PrefInitTask(context).executeOnExecutor(Utilities.THREAD_POOL_EXECUTOR);
+            new PrefInitTask(context).executeOnExecutor(Executors.THREAD_POOL_EXECUTOR);
         }
     }
 
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index ba122f9..5d0effa 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -24,15 +24,9 @@
 import android.app.Person;
 import android.app.WallpaperManager;
 import android.content.BroadcastReceiver;
-import android.content.ComponentName;
 import android.content.Context;
-import android.content.Intent;
 import android.content.SharedPreferences;
-import android.content.pm.ApplicationInfo;
 import android.content.pm.LauncherActivityInfo;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager;
-import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.ResolveInfo;
 import android.content.pm.ShortcutInfo;
 import android.content.res.Resources;
@@ -47,7 +41,6 @@
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.InsetDrawable;
 import android.os.Build;
-import android.os.Bundle;
 import android.os.DeadObjectException;
 import android.os.Handler;
 import android.os.Message;
@@ -60,7 +53,6 @@
 import android.text.style.TtsSpan;
 import android.util.DisplayMetrics;
 import android.util.Log;
-import android.util.Pair;
 import android.util.TypedValue;
 import android.view.MotionEvent;
 import android.view.View;
@@ -69,7 +61,6 @@
 
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.ShortcutConfigActivityInfo;
-import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.dragndrop.FolderAdaptiveIcon;
 import com.android.launcher3.graphics.RotationMode;
 import com.android.launcher3.graphics.TintedDrawableSpan;
@@ -81,17 +72,10 @@
 import com.android.launcher3.views.Transposable;
 import com.android.launcher3.widget.PendingAddShortcutInfo;
 
-import java.io.Closeable;
-import java.io.IOException;
 import java.lang.reflect.Method;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Locale;
-import java.util.StringTokenizer;
-import java.util.concurrent.Executor;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.ThreadPoolExecutor;
-import java.util.concurrent.TimeUnit;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -124,8 +108,6 @@
     public static final boolean ATLEAST_OREO =
             Build.VERSION.SDK_INT >= Build.VERSION_CODES.O;
 
-    public static final int SINGLE_FRAME_MS = 16;
-
     /**
      * Set on a motion event dispatched from the nav bar. See {@link MotionEvent#setEdgeFlags(int)}.
      */
@@ -148,18 +130,6 @@
     public static final String EXTRA_WALLPAPER_OFFSET = "com.android.launcher3.WALLPAPER_OFFSET";
     public static final String EXTRA_WALLPAPER_FLAVOR = "com.android.launcher3.WALLPAPER_FLAVOR";
 
-    // These values are same as that in {@link AsyncTask}.
-    private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
-    private static final int CORE_POOL_SIZE = CPU_COUNT + 1;
-    private static final int MAXIMUM_POOL_SIZE = CPU_COUNT * 2 + 1;
-    private static final int KEEP_ALIVE = 1;
-    /**
-     * An {@link Executor} to be used with async task with no limit on the queue size.
-     */
-    public static final Executor THREAD_POOL_EXECUTOR = new ThreadPoolExecutor(
-            CORE_POOL_SIZE, MAXIMUM_POOL_SIZE, KEEP_ALIVE,
-            TimeUnit.SECONDS, new LinkedBlockingQueue<>());
-
     public static boolean IS_RUNNING_IN_TEST_HARNESS =
                     ActivityManager.isRunningInTestHarness();
 
@@ -247,7 +217,6 @@
         return scale;
     }
 
-
     /**
      * Inverse of {@link #getDescendantCoordRelativeToAncestor(View, View, float[], boolean)}.
      */
@@ -383,53 +352,6 @@
         return min + (value * (max - min));
     }
 
-    public static boolean isSystemApp(Context context, Intent intent) {
-        PackageManager pm = context.getPackageManager();
-        ComponentName cn = intent.getComponent();
-        String packageName = null;
-        if (cn == null) {
-            ResolveInfo info = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
-            if ((info != null) && (info.activityInfo != null)) {
-                packageName = info.activityInfo.packageName;
-            }
-        } else {
-            packageName = cn.getPackageName();
-        }
-        if (packageName != null) {
-            try {
-                PackageInfo info = pm.getPackageInfo(packageName, 0);
-                return (info != null) && (info.applicationInfo != null) &&
-                        ((info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0);
-            } catch (NameNotFoundException e) {
-                return false;
-            }
-        } else {
-            return false;
-        }
-    }
-
-    /*
-     * Finds a system apk which had a broadcast receiver listening to a particular action.
-     * @param action intent action used to find the apk
-     * @return a pair of apk package name and the resources.
-     */
-    static Pair<String, Resources> findSystemApk(String action, PackageManager pm) {
-        final Intent intent = new Intent(action);
-        for (ResolveInfo info : pm.queryBroadcastReceivers(intent, 0)) {
-            if (info.activityInfo != null &&
-                    (info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
-                final String packageName = info.activityInfo.packageName;
-                try {
-                    final Resources res = pm.getResourcesForApplication(packageName);
-                    return Pair.create(packageName, res);
-                } catch (NameNotFoundException e) {
-                    Log.w(TAG, "Failed to find resources for " + packageName);
-                }
-            }
-        }
-        return null;
-    }
-
     /**
      * Trims the string, removing all whitespace at the beginning and end of the string.
      * Non-breaking whitespaces are also removed.
@@ -454,51 +376,10 @@
         return (int) Math.ceil(fm.bottom - fm.top);
     }
 
-    /**
-     * Convenience println with multiple args.
-     */
-    public static void println(String key, Object... args) {
-        StringBuilder b = new StringBuilder();
-        b.append(key);
-        b.append(": ");
-        boolean isFirstArgument = true;
-        for (Object arg : args) {
-            if (isFirstArgument) {
-                isFirstArgument = false;
-            } else {
-                b.append(", ");
-            }
-            b.append(arg);
-        }
-        System.out.println(b.toString());
-    }
-
     public static boolean isRtl(Resources res) {
         return res.getConfiguration().getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
     }
 
-    /**
-     * Returns true if the intent is a valid launch intent for a launcher activity of an app.
-     * This is used to identify shortcuts which are different from the ones exposed by the
-     * applications' manifest file.
-     *
-     * @param launchIntent The intent that will be launched when the shortcut is clicked.
-     */
-    public static boolean isLauncherAppTarget(Intent launchIntent) {
-        if (launchIntent != null
-                && Intent.ACTION_MAIN.equals(launchIntent.getAction())
-                && launchIntent.getComponent() != null
-                && launchIntent.getCategories() != null
-                && launchIntent.getCategories().size() == 1
-                && launchIntent.hasCategory(Intent.CATEGORY_LAUNCHER)
-                && TextUtils.isEmpty(launchIntent.getDataString())) {
-            // An app target can either have no extra or have ItemInfo.EXTRA_PROFILE.
-            Bundle extras = launchIntent.getExtras();
-            return extras == null || extras.keySet().isEmpty();
-        }
-        return false;
-    }
-
     public static float dpiFromPx(int size, DisplayMetrics metrics){
         float densityRatio = (float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT;
         return (size / densityRatio);
@@ -601,18 +482,6 @@
         return context.getSystemService(WallpaperManager.class).isSetWallpaperAllowed();
     }
 
-    public static void closeSilently(Closeable c) {
-        if (c != null) {
-            try {
-                c.close();
-            } catch (IOException e) {
-                if (FeatureFlags.IS_DOGFOOD_BUILD) {
-                    Log.d(TAG, "Error closing", e);
-                }
-            }
-        }
-    }
-
     public static boolean isBinderSizeError(Exception e) {
         return e.getCause() instanceof TransactionTooLargeException
                 || e.getCause() instanceof DeadObjectException;
@@ -715,7 +584,7 @@
             LauncherIcons li = LauncherIcons.obtain(appState.getContext());
             Bitmap badge = li.getShortcutInfoBadge(si, appState.getIconCache()).iconBitmap;
             li.recycle();
-            float badgeSize = launcher.getResources().getDimension(R.dimen.profile_badge_size);
+            float badgeSize = LauncherIcons.getBadgeSizeForIconSize(iconSize);
             float insetFraction = (iconSize - badgeSize) / iconSize;
             return new InsetDrawable(new FastBitmapDrawable(badge),
                     insetFraction, insetFraction, 0, 0);
@@ -727,25 +596,6 @@
         }
     }
 
-    public static int[] getIntArrayFromString(String tokenized) {
-        StringTokenizer tokenizer = new StringTokenizer(tokenized, ",");
-        int[] array = new int[tokenizer.countTokens()];
-        int count = 0;
-        while (tokenizer.hasMoreTokens()) {
-            array[count] = Integer.parseInt(tokenizer.nextToken().trim());
-            count++;
-        }
-        return array;
-    }
-
-    public static String getStringFromIntArray(int[] array) {
-        StringBuilder str = new StringBuilder();
-        for (int value : array) {
-            str.append(value).append(",");
-        }
-        return str.toString();
-    }
-
     public static float squaredHypot(float x, float y) {
         return x * x + y * y;
     }
diff --git a/src/com/android/launcher3/WidgetPreviewLoader.java b/src/com/android/launcher3/WidgetPreviewLoader.java
index 6d1bc1a..c6381b0 100644
--- a/src/com/android/launcher3/WidgetPreviewLoader.java
+++ b/src/com/android/launcher3/WidgetPreviewLoader.java
@@ -1,5 +1,8 @@
 package com.android.launcher3;
 
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+
 import android.content.ComponentName;
 import android.content.ContentValues;
 import android.content.Context;
@@ -23,21 +26,23 @@
 import android.graphics.drawable.Drawable;
 import android.os.AsyncTask;
 import android.os.CancellationSignal;
-import android.os.Handler;
 import android.os.Process;
 import android.os.UserHandle;
 import android.util.Log;
 import android.util.LongSparseArray;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.compat.AppWidgetManagerCompat;
 import com.android.launcher3.compat.ShortcutConfigActivityInfo;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.icons.GraphicsUtils;
+import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.icons.LauncherIcons;
 import com.android.launcher3.icons.ShadowGenerator;
-import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.model.WidgetItem;
 import com.android.launcher3.util.ComponentKey;
+import com.android.launcher3.util.Executors;
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.util.Preconditions;
 import com.android.launcher3.util.SQLiteCacheHelper;
@@ -50,11 +55,8 @@
 import java.util.HashSet;
 import java.util.Set;
 import java.util.WeakHashMap;
-import java.util.concurrent.Callable;
 import java.util.concurrent.ExecutionException;
 
-import androidx.annotation.Nullable;
-
 public class WidgetPreviewLoader {
 
     private static final String TAG = "WidgetPreviewLoader";
@@ -68,23 +70,18 @@
      * Note: synchronized block used for this variable is expensive and the block should always
      * be posted to a background thread.
      */
-    @Thunk final Set<Bitmap> mUnusedBitmaps =
-            Collections.newSetFromMap(new WeakHashMap<Bitmap, Boolean>());
+    @Thunk final Set<Bitmap> mUnusedBitmaps = Collections.newSetFromMap(new WeakHashMap<>());
 
     private final Context mContext;
     private final IconCache mIconCache;
     private final UserManagerCompat mUserManager;
     private final CacheDb mDb;
 
-    private final MainThreadExecutor mMainThreadExecutor = new MainThreadExecutor();
-    @Thunk final Handler mWorkerHandler;
-
     public WidgetPreviewLoader(Context context, IconCache iconCache) {
         mContext = context;
         mIconCache = iconCache;
         mUserManager = UserManagerCompat.getInstance(context);
         mDb = new CacheDb(context);
-        mWorkerHandler = new Handler(LauncherModel.getWorkerLooper());
     }
 
     /**
@@ -99,7 +96,7 @@
         WidgetCacheKey key = new WidgetCacheKey(item.componentName, item.user, size);
 
         PreviewLoadTask task = new PreviewLoadTask(key, item, previewWidth, previewHeight, caller);
-        task.executeOnExecutor(Utilities.THREAD_POOL_EXECUTOR);
+        task.executeOnExecutor(Executors.THREAD_POOL_EXECUTOR);
 
         CancellationSignal signal = new CancellationSignal();
         signal.setOnCancelListener(task);
@@ -453,7 +450,7 @@
 
     private Bitmap generateShortcutPreview(BaseActivity launcher, ShortcutConfigActivityInfo info,
             int maxWidth, int maxHeight, Bitmap preview) {
-        int iconSize = launcher.getDeviceProfile().iconSizePx;
+        int iconSize = launcher.getDeviceProfile().allAppsIconSizePx;
         int padding = launcher.getResources()
                 .getDimensionPixelSize(R.dimen.widget_preview_shortcut_padding);
 
@@ -494,12 +491,7 @@
 
     private Drawable mutateOnMainThread(final Drawable drawable) {
         try {
-            return mMainThreadExecutor.submit(new Callable<Drawable>() {
-                @Override
-                public Drawable call() throws Exception {
-                    return drawable.mutate();
-                }
-            }).get();
+            return MAIN_EXECUTOR.submit(drawable::mutate).get();
         } catch (InterruptedException e) {
             Thread.currentThread().interrupt();
             throw new RuntimeException(e);
@@ -607,7 +599,7 @@
 
             // Write the generated preview to the DB in the worker thread
             if (mVersions != null) {
-                mWorkerHandler.post(new Runnable() {
+                MODEL_EXECUTOR.post(new Runnable() {
                     @Override
                     public void run() {
                         if (!isCancelled()) {
@@ -637,7 +629,7 @@
             // recycled set immediately. Otherwise, it will be recycled after the preview is written
             // to disk.
             if (preview != null) {
-                mWorkerHandler.post(new Runnable() {
+                MODEL_EXECUTOR.post(new Runnable() {
                     @Override
                     public void run() {
                         synchronized (mUnusedBitmaps) {
@@ -658,7 +650,7 @@
             // in the tasks's onCancelled() call, and if cancelled while the task is writing to
             // disk, it will be cancelled in the task's onPostExecute() call.
             if (mBitmapToRecycle != null) {
-                mWorkerHandler.post(new Runnable() {
+                MODEL_EXECUTOR.post(new Runnable() {
                     @Override
                     public void run() {
                         synchronized (mUnusedBitmaps) {
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index c5e1058..9eeb286 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -67,9 +67,9 @@
 import com.android.launcher3.accessibility.WorkspaceAccessibilityHelper;
 import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.Interpolators;
-import com.android.launcher3.dot.FolderDotInfo;
 import com.android.launcher3.compat.AppWidgetManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.dot.FolderDotInfo;
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.dragndrop.DragOptions;
@@ -90,8 +90,8 @@
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
+import com.android.launcher3.util.Executors;
 import com.android.launcher3.util.IntArray;
-import com.android.launcher3.util.IntSet;
 import com.android.launcher3.util.IntSparseArrayMap;
 import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.PackageUserKey;
@@ -133,9 +133,6 @@
 
     private static final int DEFAULT_PAGE = 0;
 
-    public static final boolean MAP_NO_RECURSE = false;
-    public static final boolean MAP_RECURSE = true;
-
     private LayoutTransition mLayoutTransition;
     @Thunk final WallpaperManager mWallpaperManager;
 
@@ -1038,6 +1035,13 @@
     }
 
     @Override
+    protected boolean onOverscroll(int amount) {
+        // Enforce overscroll on -1 direction
+        if ((amount > 0 && !mIsRtl) || (amount < 0 && mIsRtl)) return false;
+        return super.onOverscroll(amount);
+    }
+
+    @Override
     protected boolean shouldFlingForVelocity(int velocityX) {
         // When the overlay is moving, the fling or settle transition is controlled by the overlay.
         return Float.compare(Math.abs(mOverlayTranslation), 0) == 0 &&
@@ -1161,7 +1165,7 @@
     }
 
     protected void setWallpaperDimension() {
-        Utilities.THREAD_POOL_EXECUTOR.execute(new Runnable() {
+        Executors.THREAD_POOL_EXECUTOR.execute(new Runnable() {
             @Override
             public void run() {
                 final Point size = LauncherAppState.getIDP(getContext()).defaultWallpaperSize;
@@ -1271,6 +1275,10 @@
         return !mLauncher.isInState(NORMAL);
     }
 
+    private boolean workspaceInScrollableState() {
+        return mLauncher.isInState(SPRING_LOADED) || !workspaceInModalState();
+    }
+
     /** Returns whether a drag should be allowed to be started from the current workspace state. */
     public boolean workspaceIconsCanBeDragged() {
         return mLauncher.getStateManager().getState().workspaceIconsCanBeDragged;
@@ -1492,7 +1500,7 @@
         Rect dragRect = null;
         if (child instanceof BubbleTextView) {
             dragRect = new Rect();
-            ((BubbleTextView) child).getIconBounds(dragRect);
+            BubbleTextView.getIconBounds(child, dragRect, grid.iconSizePx);
             dragLayerY += dragRect.top;
             // Note: The dragRect is used to calculate drag layer offsets, but the
             // dragVisualizeOffset in addition to the dragRect (the size) to position the outline.
@@ -2535,22 +2543,22 @@
             View view;
 
             switch (info.itemType) {
-            case ITEM_TYPE_APPLICATION:
-            case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
-            case LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT:
-                if (info.container == NO_ID && info instanceof AppInfo) {
-                    // Came from all apps -- make a copy
-                    info = ((AppInfo) info).makeWorkspaceItem();
-                    d.dragInfo = info;
-                }
-                view = mLauncher.createShortcut(cellLayout, (WorkspaceItemInfo) info);
-                break;
-            case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
-                view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout,
-                        (FolderInfo) info);
-                break;
-            default:
-                throw new IllegalStateException("Unknown item type: " + info.itemType);
+                case ITEM_TYPE_APPLICATION:
+                case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
+                case LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT:
+                    if (info instanceof AppInfo) {
+                        // Came from all apps -- make a copy
+                        info = ((AppInfo) info).makeWorkspaceItem();
+                        d.dragInfo = info;
+                    }
+                    view = mLauncher.createShortcut(cellLayout, (WorkspaceItemInfo) info);
+                    break;
+                case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
+                    view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout,
+                            (FolderInfo) info);
+                    break;
+                default:
+                    throw new IllegalStateException("Unknown item type: " + info.itemType);
             }
 
             // First we find the cell nearest to point at which the item is
@@ -2808,10 +2816,27 @@
     }
 
     /**
+     * Removed widget from workspace by appWidgetId
+     * @param appWidgetId
+     */
+    public void removeWidget(int appWidgetId) {
+        mapOverItems((info, view) -> {
+            if (info instanceof LauncherAppWidgetInfo) {
+                LauncherAppWidgetInfo appWidgetInfo = (LauncherAppWidgetInfo) info;
+                if (appWidgetInfo.appWidgetId == appWidgetId) {
+                    mLauncher.removeItem(view, appWidgetInfo, true);
+                    return true;
+                }
+            }
+            return false;
+        });
+    }
+
+    /**
      * Removes all folder listeners
      */
     public void removeFolderListeners() {
-        mapOverItems(false, new ItemOperator() {
+        mapOverItems(new ItemOperator() {
             @Override
             public boolean evaluate(ItemInfo info, View view) {
                 if (view instanceof FolderIcon) {
@@ -2858,7 +2883,7 @@
     @Override
     public boolean scrollLeft() {
         boolean result = false;
-        if (!workspaceInModalState() && !mIsSwitchingState) {
+        if (!mIsSwitchingState && workspaceInScrollableState()) {
             result = super.scrollLeft();
         }
         Folder openFolder = Folder.getOpen(mLauncher);
@@ -2871,7 +2896,7 @@
     @Override
     public boolean scrollRight() {
         boolean result = false;
-        if (!workspaceInModalState() && !mIsSwitchingState) {
+        if (!mIsSwitchingState && workspaceInScrollableState()) {
             result = super.scrollRight();
         }
         Folder openFolder = Folder.getOpen(mLauncher);
@@ -2963,7 +2988,7 @@
 
     public View getFirstMatch(final ItemOperator operator) {
         final View[] value = new View[1];
-        mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
+        mapOverItems(new ItemOperator() {
             @Override
             public boolean evaluate(ItemInfo info, View v) {
                 if (operator.evaluate(info, v)) {
@@ -2986,7 +3011,7 @@
         final View[] matches = new View[operators.length];
         // For efficiency, the outer loop should be CellLayout.
         for (CellLayout cellLayout : cellLayouts) {
-            mapOverCellLayout(MAP_NO_RECURSE, cellLayout, (info, v) -> {
+            mapOverCellLayout(cellLayout, (info, v) -> {
                 for (int i = 0; i < operators.length; ++i) {
                     if (matches[i] == null && operators[i].evaluate(info, v)) {
                         matches[i] = v;
@@ -3011,7 +3036,7 @@
     }
 
     void clearDropTargets() {
-        mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
+        mapOverItems(new ItemOperator() {
             @Override
             public boolean evaluate(ItemInfo info, View v) {
                 if (v instanceof DropTarget) {
@@ -3056,10 +3081,12 @@
                 } else if (itemToRemove.container >= 0) {
                     // The item may belong to a folder.
                     View parent = idToViewMap.get(itemToRemove.container);
-                    if (parent != null) {
+                    if (parent instanceof FolderIcon) {
                         FolderInfo folderInfo = (FolderInfo) parent.getTag();
-                        folderInfo.prepareAutoUpdate();
                         folderInfo.remove((WorkspaceItemInfo) itemToRemove, false);
+                        if (((FolderIcon) parent).getFolder().isOpen()) {
+                            ((FolderIcon) parent).getFolder().close(false /* animate */);
+                        }
                     }
                 }
             }
@@ -3083,18 +3110,17 @@
     /**
      * Map the operator over the shortcuts and widgets, return the first-non-null value.
      *
-     * @param recurse true: iterate over folder children. false: op get the folders themselves.
      * @param op the operator to map over the shortcuts
      */
-    public void mapOverItems(boolean recurse, ItemOperator op) {
+    public void mapOverItems(ItemOperator op) {
         for (CellLayout layout : getWorkspaceAndHotseatCellLayouts()) {
-            if (mapOverCellLayout(recurse, layout, op)) {
+            if (mapOverCellLayout(layout, op)) {
                 return;
             }
         }
     }
 
-    private boolean mapOverCellLayout(boolean recurse, CellLayout layout, ItemOperator op) {
+    private boolean mapOverCellLayout(CellLayout layout, ItemOperator op) {
         // TODO(b/128460496) Potential race condition where layout is not yet loaded
         if (layout == null) {
             return false;
@@ -3104,103 +3130,68 @@
         final int itemCount = container.getChildCount();
         for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) {
             View item = container.getChildAt(itemIdx);
-            ItemInfo info = (ItemInfo) item.getTag();
-            if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) {
-                FolderIcon folder = (FolderIcon) item;
-                ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder();
-                // map over all the children in the folder
-                final int childCount = folderChildren.size();
-                for (int childIdx = 0; childIdx < childCount; childIdx++) {
-                    View child = folderChildren.get(childIdx);
-                    info = (ItemInfo) child.getTag();
-                    if (op.evaluate(info, child)) {
-                        return true;
-                    }
-                }
-            } else {
-                if (op.evaluate(info, item)) {
-                    return true;
-                }
+            if (op.evaluate((ItemInfo) item.getTag(), item)) {
+                return true;
             }
         }
         return false;
     }
 
     void updateShortcuts(ArrayList<WorkspaceItemInfo> shortcuts) {
-        int total  = shortcuts.size();
-        final HashSet<WorkspaceItemInfo> updates = new HashSet<>(total);
-        final IntSet folderIds = new IntSet();
+        final HashSet<WorkspaceItemInfo> updates = new HashSet<>(shortcuts);
+        ItemOperator op = (info, v) -> {
+            if (v instanceof BubbleTextView && updates.contains(info)) {
+                WorkspaceItemInfo si = (WorkspaceItemInfo) info;
+                BubbleTextView shortcut = (BubbleTextView) v;
+                Drawable oldIcon = shortcut.getIcon();
+                boolean oldPromiseState = (oldIcon instanceof PreloadIconDrawable)
+                        && ((PreloadIconDrawable) oldIcon).hasNotCompleted();
+                shortcut.applyFromWorkspaceItem(si, si.isPromise() != oldPromiseState);
+            } else if (info instanceof FolderInfo && v instanceof FolderIcon) {
+                ((FolderIcon) v).updatePreviewItems(updates::contains);
+            }
 
-        for (int i = 0; i < total; i++) {
-            WorkspaceItemInfo s = shortcuts.get(i);
-            updates.add(s);
-            folderIds.add(s.container);
+            // Iterate all items
+            return false;
+        };
+
+        mapOverItems(op);
+        Folder openFolder = Folder.getOpen(mLauncher);
+        if (openFolder != null) {
+            openFolder.iterateOverItems(op);
         }
-
-        mapOverItems(MAP_RECURSE, new ItemOperator() {
-            @Override
-            public boolean evaluate(ItemInfo info, View v) {
-                if (info instanceof WorkspaceItemInfo && v instanceof BubbleTextView &&
-                        updates.contains(info)) {
-                    WorkspaceItemInfo si = (WorkspaceItemInfo) info;
-                    BubbleTextView shortcut = (BubbleTextView) v;
-                    Drawable oldIcon = shortcut.getIcon();
-                    boolean oldPromiseState = (oldIcon instanceof PreloadIconDrawable)
-                            && ((PreloadIconDrawable) oldIcon).hasNotCompleted();
-                    shortcut.applyFromWorkspaceItem(si, si.isPromise() != oldPromiseState);
-                }
-                // process all the shortcuts
-                return false;
-            }
-        });
-
-        // Update folder icons
-        mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
-            @Override
-            public boolean evaluate(ItemInfo info, View v) {
-                if (info instanceof FolderInfo && folderIds.contains(info.id)) {
-                    ((FolderInfo) info).itemsChanged(false);
-                }
-                // process all the shortcuts
-                return false;
-            }
-        });
     }
 
     public void updateNotificationDots(Predicate<PackageUserKey> updatedDots) {
         final PackageUserKey packageUserKey = new PackageUserKey(null, null);
-        final IntSet folderIds = new IntSet();
-        mapOverItems(MAP_RECURSE, new ItemOperator() {
-            @Override
-            public boolean evaluate(ItemInfo info, View v) {
-                if (info instanceof WorkspaceItemInfo && v instanceof BubbleTextView) {
-                    if (!packageUserKey.updateFromItemInfo(info)
-                            || updatedDots.test(packageUserKey)) {
-                        ((BubbleTextView) v).applyDotState(info, true /* animate */);
-                        folderIds.add(info.container);
-                    }
-                }
-                // process all the shortcuts
-                return false;
-            }
-        });
+        Predicate<ItemInfo> matcher = info -> !packageUserKey.updateFromItemInfo(info)
+                || updatedDots.test(packageUserKey);
 
-        // Update folder icons
-        mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
-            @Override
-            public boolean evaluate(ItemInfo info, View v) {
-                if (info instanceof FolderInfo && folderIds.contains(info.id)
-                        && v instanceof FolderIcon) {
+        ItemOperator op = (info, v) -> {
+            if (info instanceof WorkspaceItemInfo && v instanceof BubbleTextView) {
+                if (matcher.test(info)) {
+                    ((BubbleTextView) v).applyDotState(info, true /* animate */);
+                }
+            } else if (info instanceof FolderInfo && v instanceof FolderIcon) {
+                FolderInfo fi = (FolderInfo) info;
+                if (fi.contents.stream().anyMatch(matcher)) {
                     FolderDotInfo folderDotInfo = new FolderDotInfo();
-                    for (WorkspaceItemInfo si : ((FolderInfo) info).contents) {
+                    for (WorkspaceItemInfo si : fi.contents) {
                         folderDotInfo.addDotInfo(mLauncher.getDotInfoForItem(si));
                     }
                     ((FolderIcon) v).setDotInfo(folderDotInfo);
                 }
-                // process all the shortcuts
-                return false;
             }
-        });
+
+            // process all the shortcuts
+            return false;
+        };
+
+        mapOverItems(op);
+        Folder folder = Folder.getOpen(mLauncher);
+        if (folder != null) {
+            folder.iterateOverItems(op);
+        }
     }
 
     public void removeAbandonedPromise(String packageName, UserHandle user) {
@@ -3212,21 +3203,25 @@
     }
 
     public void updateRestoreItems(final HashSet<ItemInfo> updates) {
-        mapOverItems(MAP_RECURSE, new ItemOperator() {
-            @Override
-            public boolean evaluate(ItemInfo info, View v) {
-                if (info instanceof WorkspaceItemInfo && v instanceof BubbleTextView
-                        && updates.contains(info)) {
-                    ((BubbleTextView) v).applyPromiseState(false /* promiseStateChanged */);
-                } else if (v instanceof PendingAppWidgetHostView
-                        && info instanceof LauncherAppWidgetInfo
-                        && updates.contains(info)) {
-                    ((PendingAppWidgetHostView) v).applyState();
-                }
-                // process all the shortcuts
-                return false;
+        ItemOperator op = (info, v) -> {
+            if (info instanceof WorkspaceItemInfo && v instanceof BubbleTextView
+                    && updates.contains(info)) {
+                ((BubbleTextView) v).applyPromiseState(false /* promiseStateChanged */);
+            } else if (v instanceof PendingAppWidgetHostView
+                    && info instanceof LauncherAppWidgetInfo
+                    && updates.contains(info)) {
+                ((PendingAppWidgetHostView) v).applyState();
+            } else if (v instanceof FolderIcon && info instanceof FolderInfo) {
+                ((FolderIcon) v).updatePreviewItems(updates::contains);
             }
-        });
+            // process all the shortcuts
+            return false;
+        };
+        mapOverItems(op);
+        Folder folder = Folder.getOpen(mLauncher);
+        if (folder != null) {
+            folder.iterateOverItems(op);
+        }
     }
 
     public void widgetsRestored(final ArrayList<LauncherAppWidgetInfo> changedInfo) {
@@ -3250,7 +3245,7 @@
             } else {
                 // widgetRefresh will automatically run when the packages are updated.
                 // For now just update the progress bars
-                mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
+                mapOverItems(new ItemOperator() {
                     @Override
                     public boolean evaluate(ItemInfo info, View view) {
                         if (view instanceof PendingAppWidgetHostView
@@ -3374,7 +3369,7 @@
             mRefreshPending = false;
 
             ArrayList<PendingAppWidgetHostView> views = new ArrayList<>(mInfos.size());
-            mapOverItems(MAP_NO_RECURSE, (info, view) -> {
+            mapOverItems((info, view) -> {
                 if (view instanceof PendingAppWidgetHostView && mInfos.contains(info)) {
                     views.add((PendingAppWidgetHostView) view);
                 }
diff --git a/src/com/android/launcher3/WorkspaceItemInfo.java b/src/com/android/launcher3/WorkspaceItemInfo.java
index 9451aae..23795c5 100644
--- a/src/com/android/launcher3/WorkspaceItemInfo.java
+++ b/src/com/android/launcher3/WorkspaceItemInfo.java
@@ -221,4 +221,9 @@
         }
         return cn;
     }
+
+    @Override
+    public ItemInfoWithIcon clone() {
+        return new WorkspaceItemInfo(this);
+    }
 }
diff --git a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
index 40c6b5f..7a7e1fe 100644
--- a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
+++ b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
@@ -38,7 +38,6 @@
 import com.android.launcher3.LauncherStateManager.AnimationConfig;
 import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.PropertySetter;
-import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.graphics.WorkspaceAndHotseatScrim;
 
 /**
@@ -96,14 +95,13 @@
             propertySetter.setFloat(mWorkspace, SCALE_PROPERTY, mNewScale, scaleInterpolator);
 
             if (!hotseat.getRotationMode().isTransposed) {
-                // Set the hotseat's pivot point to match the workspace's, so that it scales together.
-                DragLayer dragLayer = mLauncher.getDragLayer();
-                float[] workspacePivot =
-                        new float[]{ mWorkspace.getPivotX(), mWorkspace.getPivotY() };
-                dragLayer.getDescendantCoordRelativeToSelf(mWorkspace, workspacePivot);
-                dragLayer.mapCoordInSelfToDescendant(hotseat, workspacePivot);
-                hotseat.setPivotX(workspacePivot[0]);
-                hotseat.setPivotY(workspacePivot[1]);
+                // Set the hotseat's pivot point to match the workspace's, so that it scales
+                // together. Since both hotseat and workspace can move, transform the point
+                // manually instead of using dragLayer.getDescendantCoordRelativeToSelf and
+                // related methods.
+                hotseat.setPivotY(mWorkspace.getPivotY() + mWorkspace.getTop() - hotseat.getTop());
+                hotseat.setPivotX(mWorkspace.getPivotX()
+                        + mWorkspace.getLeft() - hotseat.getLeft());
             }
             float hotseatScale = hotseatScaleAndTranslation.scale;
             Interpolator hotseatScaleInterpolator = builder.getInterpolator(ANIM_HOTSEAT_SCALE,
diff --git a/src/com/android/launcher3/allapps/AllAppsContainerView.java b/src/com/android/launcher3/allapps/AllAppsContainerView.java
index 293b867..2d5b040 100644
--- a/src/com/android/launcher3/allapps/AllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsContainerView.java
@@ -26,14 +26,18 @@
 import android.text.Selection;
 import android.text.SpannableStringBuilder;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.WindowInsets;
-
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.StringRes;
+import androidx.dynamicanimation.animation.DynamicAnimation;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.DeviceProfile.OnDeviceProfileChangeListener;
@@ -45,11 +49,11 @@
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
-import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.keyboard.FocusedItemDecorator;
+import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
 import com.android.launcher3.util.ItemInfoMatcher;
@@ -60,13 +64,6 @@
 import com.android.launcher3.views.RecyclerViewFastScroller;
 import com.android.launcher3.views.SpringRelativeLayout;
 
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.annotation.StringRes;
-import androidx.dynamicanimation.animation.DynamicAnimation;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
-
 /**
  * The all apps view container.
  */
@@ -200,7 +197,10 @@
 
         // The AllAppsContainerView houses the QSB and is hence visible from the Workspace
         // Overview states. We shouldn't intercept for the scrubber in these cases.
-        if (!mLauncher.isInState(LauncherState.ALL_APPS)) return false;
+        if (!mLauncher.isInState(LauncherState.ALL_APPS)) {
+            mTouchHandler = null;
+            return false;
+        }
 
         if (ev.getAction() == MotionEvent.ACTION_DOWN) {
             AllAppsRecyclerView rv = getActiveRecyclerView();
@@ -219,6 +219,16 @@
 
     @Override
     public boolean onTouchEvent(MotionEvent ev) {
+        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
+            AllAppsRecyclerView rv = getActiveRecyclerView();
+            if (rv != null && rv.getScrollbar()
+                .isHitInParent(ev.getX(), ev.getY(), mFastScrollerOffset)) {
+                mTouchHandler = rv.getScrollbar();
+            } else {
+                mTouchHandler = null;
+            }
+        }
+
         if (mTouchHandler != null) {
             mTouchHandler.handleTouchEvent(ev, mFastScrollerOffset);
             return true;
@@ -312,6 +322,7 @@
                 + grid.cellLayoutPaddingLeftRightPx;
 
         for (int i = 0; i < mAH.length; i++) {
+            mAH[i].adapter.setAppsPerRow(grid.inv.numAllAppsColumns);
             mAH[i].padding.bottom = insets.bottom;
             mAH[i].padding.left = mAH[i].padding.right = leftRightPadding;
             mAH[i].applyPadding();
diff --git a/src/com/android/launcher3/allapps/AllAppsGridAdapter.java b/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
index 3cfa0b1..bb21268 100644
--- a/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
+++ b/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
@@ -180,7 +180,7 @@
     private final GridLayoutManager mGridLayoutMgr;
     private final GridSpanSizer mGridSizer;
 
-    private final int mAppsPerRow;
+    private int mAppsPerRow;
 
     private BindViewCallback mBindViewCallback;
     private OnFocusChangeListener mIconFocusListener;
@@ -200,7 +200,11 @@
         mGridLayoutMgr.setSpanSizeLookup(mGridSizer);
         mLayoutInflater = LayoutInflater.from(launcher);
 
-        mAppsPerRow = mLauncher.getDeviceProfile().inv.numColumns;
+        setAppsPerRow(mLauncher.getDeviceProfile().inv.numAllAppsColumns);
+    }
+
+    public void setAppsPerRow(int appsPerRow) {
+        mAppsPerRow = appsPerRow;
         mGridLayoutMgr.setSpanCount(mAppsPerRow);
     }
 
diff --git a/src/com/android/launcher3/allapps/AllAppsPagedView.java b/src/com/android/launcher3/allapps/AllAppsPagedView.java
index 69068c6..5b73940 100644
--- a/src/com/android/launcher3/allapps/AllAppsPagedView.java
+++ b/src/com/android/launcher3/allapps/AllAppsPagedView.java
@@ -81,4 +81,9 @@
     public boolean hasOverlappingRendering() {
         return false;
     }
+
+    @Override
+    protected boolean isVerticalScrollable() {
+        return false;
+    }
 }
diff --git a/src/com/android/launcher3/allapps/AllAppsStore.java b/src/com/android/launcher3/allapps/AllAppsStore.java
index ca8dbeb..c4b2f68 100644
--- a/src/com/android/launcher3/allapps/AllAppsStore.java
+++ b/src/com/android/launcher3/allapps/AllAppsStore.java
@@ -15,6 +15,9 @@
  */
 package com.android.launcher3.allapps;
 
+import static com.android.launcher3.AppInfo.COMPONENT_KEY_COMPARATOR;
+import static com.android.launcher3.AppInfo.EMPTY_ARRAY;
+
 import android.view.View;
 import android.view.ViewGroup;
 
@@ -26,8 +29,7 @@
 import com.android.launcher3.util.PackageUserKey;
 
 import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashMap;
+import java.util.Arrays;
 import java.util.List;
 import java.util.function.Consumer;
 import java.util.function.Predicate;
@@ -43,27 +45,33 @@
     public static final int DEFER_UPDATES_TEST = 1 << 1;
 
     private PackageUserKey mTempKey = new PackageUserKey(null, null);
-    private final HashMap<ComponentKey, AppInfo> mComponentToAppMap = new HashMap<>();
+    private AppInfo mTempInfo = new AppInfo();
+
+    private AppInfo[] mApps = EMPTY_ARRAY;
+
     private final List<OnUpdateListener> mUpdateListeners = new ArrayList<>();
     private final ArrayList<ViewGroup> mIconContainers = new ArrayList<>();
 
     private int mDeferUpdatesFlags = 0;
     private boolean mUpdatePending = false;
 
-    public Collection<AppInfo> getApps() {
-        return mComponentToAppMap.values();
+    public AppInfo[] getApps() {
+        return mApps;
     }
 
     /**
      * Sets the current set of apps.
      */
-    public void setApps(List<AppInfo> apps) {
-        mComponentToAppMap.clear();
-        addOrUpdateApps(apps);
+    public void setApps(AppInfo[] apps) {
+        mApps = apps;
+        notifyUpdate();
     }
 
     public AppInfo getApp(ComponentKey key) {
-        return mComponentToAppMap.get(key);
+        mTempInfo.componentName = key.componentName;
+        mTempInfo.user = key.user;
+        int index = Arrays.binarySearch(mApps, mTempInfo, COMPONENT_KEY_COMPARATOR);
+        return index < 0 ? null : mApps[index];
     }
 
     public void enableDeferUpdates(int flag) {
@@ -86,27 +94,6 @@
         return mDeferUpdatesFlags;
     }
 
-    /**
-     * Adds or updates existing apps in the list
-     */
-    public void addOrUpdateApps(List<AppInfo> apps) {
-        for (AppInfo app : apps) {
-            mComponentToAppMap.put(app.toComponentKey(), app);
-        }
-        notifyUpdate();
-    }
-
-    /**
-     * Removes some apps from the list.
-     */
-    public void removeApps(List<AppInfo> apps) {
-        for (AppInfo app : apps) {
-            mComponentToAppMap.remove(app.toComponentKey());
-        }
-        notifyUpdate();
-    }
-
-
     private void notifyUpdate() {
         if (mDeferUpdatesFlags != 0) {
             mUpdatePending = true;
diff --git a/src/com/android/launcher3/allapps/AllAppsTransitionController.java b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
index 3836c9f..08ce9c2 100644
--- a/src/com/android/launcher3/allapps/AllAppsTransitionController.java
+++ b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
@@ -2,8 +2,6 @@
 
 import static com.android.launcher3.LauncherState.ALL_APPS_CONTENT;
 import static com.android.launcher3.LauncherState.ALL_APPS_HEADER_EXTRA;
-import static com.android.launcher3.LauncherState.BACKGROUND_APP;
-import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
 import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.LauncherState.VERTICAL_SWIPE_INDICATOR;
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_ALL_APPS_FADE;
@@ -134,15 +132,6 @@
         } else {
             mLauncher.getSystemUiController().updateUiState(UI_STATE_ALL_APPS, 0);
         }
-
-        if ((OVERVIEW.getVisibleElements(mLauncher) & HOTSEAT_ICONS) != 0) {
-            // Translate hotseat with the shelf until reaching overview.
-            float overviewProgress = OVERVIEW.getVerticalProgress(mLauncher);
-            if (progress >= overviewProgress || mLauncher.isInState(BACKGROUND_APP)) {
-                float hotseatShift = (progress - overviewProgress) * mShiftRange;
-                mLauncher.getHotseat().setTranslationY(hotseatShift);
-            }
-        }
     }
 
     public float getProgress() {
diff --git a/src/com/android/launcher3/allapps/AlphabeticalAppsList.java b/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
index 1369441..0c4be62 100644
--- a/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
+++ b/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
@@ -21,16 +21,13 @@
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.compat.AlphabeticIndexCompat;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
-import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.LabelComparator;
 
 import java.util.ArrayList;
 import java.util.Collections;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
@@ -145,9 +142,7 @@
 
     // The of ordered component names as a result of a search query
     private ArrayList<ComponentKey> mSearchResults;
-    private HashMap<CharSequence, String> mCachedSectionNames = new HashMap<>();
     private AllAppsGridAdapter mAdapter;
-    private AlphabeticIndexCompat mIndexer;
     private AppInfoComparator mAppNameComparator;
     private final int mNumAppsPerRow;
     private int mNumAppRowsInAdapter;
@@ -156,7 +151,6 @@
     public AlphabeticalAppsList(Context context, AllAppsStore appsStore, boolean isWork) {
         mAllAppsStore = appsStore;
         mLauncher = Launcher.getLauncher(context);
-        mIndexer = new AlphabeticIndexCompat(context);
         mAppNameComparator = new AppInfoComparator(context);
         mIsWork = isWork;
         mNumAppsPerRow = mLauncher.getDeviceProfile().inv.numColumns;
@@ -263,7 +257,7 @@
             TreeMap<String, ArrayList<AppInfo>> sectionMap = new TreeMap<>(new LabelComparator());
             for (AppInfo info : mApps) {
                 // Add the section to the cache
-                String sectionName = getAndUpdateCachedSectionName(info.title);
+                String sectionName = info.sectionName;
 
                 // Add it to the mapping
                 ArrayList<AppInfo> sectionApps = sectionMap.get(sectionName);
@@ -279,12 +273,6 @@
             for (Map.Entry<String, ArrayList<AppInfo>> entry : sectionMap.entrySet()) {
                 mApps.addAll(entry.getValue());
             }
-        } else {
-            // Just compute the section headers for use below
-            for (AppInfo info : mApps) {
-                // Add the section to the cache
-                getAndUpdateCachedSectionName(info.title);
-            }
         }
 
         // Recompose the set of adapter items from the current set of apps
@@ -320,7 +308,7 @@
         // Recreate the filtered and sectioned apps (for convenience for the grid layout) from the
         // ordered set of sections
         for (AppInfo info : getFiltersAppInfos()) {
-            String sectionName = getAndUpdateCachedSectionName(info.title);
+            String sectionName = info.sectionName;
 
             // Create a new section if the section names do not match
             if (!sectionName.equals(lastSectionName)) {
@@ -428,18 +416,4 @@
         }
         return result;
     }
-
-    /**
-     * Returns the cached section name for the given title, recomputing and updating the cache if
-     * the title has no cached section name.
-     */
-    private String getAndUpdateCachedSectionName(CharSequence title) {
-        String sectionName = mCachedSectionNames.get(title);
-        if (sectionName == null) {
-            sectionName = mIndexer.computeSectionName(title);
-            mCachedSectionNames.put(title, sectionName);
-        }
-        return sectionName;
-    }
-
 }
diff --git a/src/com/android/launcher3/anim/AlphaUpdateListener.java b/src/com/android/launcher3/anim/AlphaUpdateListener.java
index 8ac9d66..eabd283 100644
--- a/src/com/android/launcher3/anim/AlphaUpdateListener.java
+++ b/src/com/android/launcher3/anim/AlphaUpdateListener.java
@@ -27,7 +27,7 @@
  */
 public class AlphaUpdateListener extends AnimationSuccessListener
         implements AnimatorUpdateListener {
-    private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f;
+    public static final float ALPHA_CUTOFF_THRESHOLD = 0.01f;
 
     private View mView;
 
diff --git a/src/com/android/launcher3/anim/AnimatorPlaybackController.java b/src/com/android/launcher3/anim/AnimatorPlaybackController.java
index 2c440bb..4a52795 100644
--- a/src/com/android/launcher3/anim/AnimatorPlaybackController.java
+++ b/src/com/android/launcher3/anim/AnimatorPlaybackController.java
@@ -26,15 +26,15 @@
 import android.animation.ValueAnimator;
 import android.util.Log;
 
+import androidx.dynamicanimation.animation.DynamicAnimation;
+import androidx.dynamicanimation.animation.SpringAnimation;
+
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 
-import androidx.dynamicanimation.animation.DynamicAnimation;
-import androidx.dynamicanimation.animation.SpringAnimation;
-
 /**
  * Helper class to control the playback of an {@link AnimatorSet}, with custom interpolators
  * and durations.
@@ -250,6 +250,17 @@
         }
     }
 
+    /**
+     * Sets mOnCancelRunnable = null before dispatching the cancel and restoring the runnable. This
+     * is intended to be used only if you need to cancel but want to defer cleaning up yourself.
+     */
+    public void dispatchOnCancelWithoutCancelRunnable() {
+        Runnable onCancel = mOnCancelRunnable;
+        setOnCancelRunnable(null);
+        dispatchOnCancel();
+        setOnCancelRunnable(onCancel);
+    }
+
     public void dispatchOnCancel() {
         dispatchOnCancelRecursively(mAnim);
     }
@@ -283,10 +294,6 @@
         mOnCancelRunnable = runnable;
     }
 
-    public Runnable getOnCancelRunnable() {
-        return mOnCancelRunnable;
-    }
-
     public void skipToEnd() {
         mSkipToEnd = true;
         for (SpringAnimation spring : mSprings) {
diff --git a/src/com/android/launcher3/anim/Interpolators.java b/src/com/android/launcher3/anim/Interpolators.java
index c45cd85..fccc120 100644
--- a/src/com/android/launcher3/anim/Interpolators.java
+++ b/src/com/android/launcher3/anim/Interpolators.java
@@ -39,6 +39,7 @@
     public static final Interpolator LINEAR = new LinearInterpolator();
 
     public static final Interpolator ACCEL = new AccelerateInterpolator();
+    public static final Interpolator ACCEL_0_75 = new AccelerateInterpolator(0.75f);
     public static final Interpolator ACCEL_1_5 = new AccelerateInterpolator(1.5f);
     public static final Interpolator ACCEL_2 = new AccelerateInterpolator(2);
 
@@ -48,6 +49,7 @@
     public static final Interpolator DEACCEL_2 = new DecelerateInterpolator(2);
     public static final Interpolator DEACCEL_2_5 = new DecelerateInterpolator(2.5f);
     public static final Interpolator DEACCEL_3 = new DecelerateInterpolator(3f);
+    public static final Interpolator DEACCEL_5 = new DecelerateInterpolator(5f);
 
     public static final Interpolator ACCEL_DEACCEL = new AccelerateDecelerateInterpolator();
 
diff --git a/src/com/android/launcher3/compat/AlphabeticIndexCompat.java b/src/com/android/launcher3/compat/AlphabeticIndexCompat.java
index dfdcc70..46c9006 100644
--- a/src/com/android/launcher3/compat/AlphabeticIndexCompat.java
+++ b/src/com/android/launcher3/compat/AlphabeticIndexCompat.java
@@ -3,7 +3,6 @@
 import android.content.Context;
 import android.icu.text.AlphabeticIndex;
 import android.os.LocaleList;
-import android.util.Log;
 
 import com.android.launcher3.Utilities;
 
@@ -12,28 +11,32 @@
 import androidx.annotation.NonNull;
 
 public class AlphabeticIndexCompat {
-    private static final String TAG = "AlphabeticIndexCompat";
 
     private static final String MID_DOT = "\u2219";
-    private final BaseIndex mBaseIndex;
     private final String mDefaultMiscLabel;
 
+    private final AlphabeticIndex.ImmutableIndex mBaseIndex;
+
     public AlphabeticIndexCompat(Context context) {
-        BaseIndex index = null;
+        this(context.getResources().getConfiguration().getLocales());
+    }
 
-        try {
-            index = new AlphabeticIndexVN(context);
-        } catch (Exception e) {
-            Log.d(TAG, "Unable to load the system index", e);
+    public AlphabeticIndexCompat(LocaleList locales) {
+        int localeCount = locales.size();
+
+        Locale primaryLocale = localeCount == 0 ? Locale.ENGLISH : locales.get(0);
+        AlphabeticIndex indexBuilder = new AlphabeticIndex(primaryLocale);
+        for (int i = 1; i < localeCount; i++) {
+            indexBuilder.addLabels(locales.get(i));
         }
+        indexBuilder.addLabels(Locale.ENGLISH);
+        mBaseIndex = indexBuilder.buildImmutableIndex();
 
-        mBaseIndex = index == null ? new BaseIndex() : index;
-
-        if (context.getResources().getConfiguration().locale
-                .getLanguage().equals(Locale.JAPANESE.getLanguage())) {
+        if (primaryLocale.getLanguage().equals(Locale.JAPANESE.getLanguage())) {
             // Japanese character 他 ("misc")
             mDefaultMiscLabel = "\u4ed6";
-            // TODO(winsonc, omakoto): We need to handle Japanese sections better, especially the kanji
+            // TODO(winsonc, omakoto): We need to handle Japanese sections better,
+            // especially the kanji
         } else {
             // Dot
             mDefaultMiscLabel = MID_DOT;
@@ -45,7 +48,7 @@
      */
     public String computeSectionName(@NonNull CharSequence cs) {
         String s = Utilities.trim(cs);
-        String sectionName = mBaseIndex.getBucketLabel(mBaseIndex.getBucketIndex(s));
+        String sectionName = mBaseIndex.getBucket(mBaseIndex.getBucketIndex(s)).getLabel();
         if (Utilities.trim(sectionName).isEmpty() && s.length() > 0) {
             int c = s.codePointAt(0);
             boolean startsWithDigit = Character.isDigit(c);
@@ -66,71 +69,4 @@
         }
         return sectionName;
     }
-
-    /**
-     * Base class to support Alphabetic indexing if not supported by the framework.
-     * TODO(winsonc): disable for non-english locales
-     */
-    private static class BaseIndex {
-
-        private static final String BUCKETS = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-";
-        private static final int UNKNOWN_BUCKET_INDEX = BUCKETS.length() - 1;
-
-        /**
-         * Returns the index of the bucket in which the given string should appear.
-         */
-        protected int getBucketIndex(@NonNull String s) {
-            if (s.isEmpty()) {
-                return UNKNOWN_BUCKET_INDEX;
-            }
-            int index = BUCKETS.indexOf(s.substring(0, 1).toUpperCase());
-            if (index != -1) {
-                return index;
-            }
-            return UNKNOWN_BUCKET_INDEX;
-        }
-
-        /**
-         * Returns the label for the bucket at the given index (as returned by getBucketIndex).
-         */
-        protected String getBucketLabel(int index) {
-            return BUCKETS.substring(index, index + 1);
-        }
-    }
-
-    /**
-     * Implementation based on {@link AlphabeticIndex}.
-     */
-    private static class AlphabeticIndexVN extends BaseIndex {
-
-        private final AlphabeticIndex.ImmutableIndex mAlphabeticIndex;
-
-        public AlphabeticIndexVN(Context context) {
-            LocaleList locales = context.getResources().getConfiguration().getLocales();
-            int localeCount = locales.size();
-
-            Locale primaryLocale = localeCount == 0 ? Locale.ENGLISH : locales.get(0);
-            AlphabeticIndex indexBuilder = new AlphabeticIndex(primaryLocale);
-            for (int i = 1; i < localeCount; i++) {
-                indexBuilder.addLabels(locales.get(i));
-            }
-            indexBuilder.addLabels(Locale.ENGLISH);
-
-            mAlphabeticIndex = indexBuilder.buildImmutableIndex();
-        }
-
-        /**
-         * Returns the index of the bucket in which {@param s} should appear.
-         */
-        protected int getBucketIndex(String s) {
-            return mAlphabeticIndex.getBucketIndex(s);
-        }
-
-        /**
-         * Returns the label for the bucket at the given index
-         */
-        protected String getBucketLabel(int index) {
-            return mAlphabeticIndex.getBucket(index).getLabel();
-        }
-    }
 }
diff --git a/src/com/android/launcher3/compat/AppWidgetManagerCompat.java b/src/com/android/launcher3/compat/AppWidgetManagerCompat.java
index 3243256..fc5d11c 100644
--- a/src/com/android/launcher3/compat/AppWidgetManagerCompat.java
+++ b/src/com/android/launcher3/compat/AppWidgetManagerCompat.java
@@ -23,19 +23,18 @@
 import android.os.Bundle;
 import android.os.UserHandle;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherAppWidgetProviderInfo;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.PackageUserKey;
-import com.android.launcher3.widget.custom.CustomWidgetParser;
+import com.android.launcher3.widget.custom.CustomWidgetManager;
 
 import java.util.HashMap;
 import java.util.List;
 
-import androidx.annotation.Nullable;
-
 public abstract class AppWidgetManagerCompat {
 
     private static final Object sInstanceLock = new Object();
@@ -63,11 +62,9 @@
     }
 
     public LauncherAppWidgetProviderInfo getLauncherAppWidgetInfo(int appWidgetId) {
-        if (FeatureFlags.ENABLE_CUSTOM_WIDGETS
-                && appWidgetId <= LauncherAppWidgetInfo.CUSTOM_WIDGET_ID) {
-            return CustomWidgetParser.getWidgetProvider(mContext, appWidgetId);
+        if (appWidgetId <= LauncherAppWidgetInfo.CUSTOM_WIDGET_ID) {
+            return CustomWidgetManager.INSTANCE.get(mContext).getWidgetProvider(appWidgetId);
         }
-
         AppWidgetProviderInfo info = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
         return info == null ? null : LauncherAppWidgetProviderInfo.fromProviderInfo(mContext, info);
     }
diff --git a/src/com/android/launcher3/compat/AppWidgetManagerCompatVL.java b/src/com/android/launcher3/compat/AppWidgetManagerCompatVL.java
index 1065748..c8b1f67 100644
--- a/src/com/android/launcher3/compat/AppWidgetManagerCompatVL.java
+++ b/src/com/android/launcher3/compat/AppWidgetManagerCompatVL.java
@@ -24,12 +24,15 @@
 import android.os.UserHandle;
 import android.os.UserManager;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherAppWidgetProviderInfo;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.PackageUserKey;
-import com.android.launcher3.widget.custom.CustomWidgetParser;
+import com.android.launcher3.widget.custom.CustomAppWidgetProviderInfo;
+import com.android.launcher3.widget.custom.CustomWidgetManager;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -37,8 +40,6 @@
 import java.util.Iterator;
 import java.util.List;
 
-import androidx.annotation.Nullable;
-
 class AppWidgetManagerCompatVL extends AppWidgetManagerCompat {
 
     private final UserManager mUserManager;
@@ -54,14 +55,11 @@
             return Collections.emptyList();
         }
         if (packageUser == null) {
-            ArrayList<AppWidgetProviderInfo> providers = new ArrayList<AppWidgetProviderInfo>();
+            ArrayList<AppWidgetProviderInfo> providers = new ArrayList<>();
             for (UserHandle user : mUserManager.getUserProfiles()) {
                 providers.addAll(mAppWidgetManager.getInstalledProvidersForProfile(user));
             }
-
-            if (FeatureFlags.ENABLE_CUSTOM_WIDGETS) {
-                providers.addAll(CustomWidgetParser.getCustomWidgets(mContext));
-            }
+            providers.addAll(getCustomWidgets());
             return providers;
         }
         // Only get providers for the given package/user.
@@ -74,9 +72,9 @@
             }
         }
 
-        if (FeatureFlags.ENABLE_CUSTOM_WIDGETS && Process.myUserHandle().equals(packageUser.mUser)
+        if (Process.myUserHandle().equals(packageUser.mUser)
                 && mContext.getPackageName().equals(packageUser.mPackageName)) {
-            providers.addAll(CustomWidgetParser.getCustomWidgets(mContext));
+            providers.addAll(getCustomWidgets());
         }
         return providers;
     }
@@ -87,9 +85,7 @@
         if (FeatureFlags.GO_DISABLE_WIDGETS) {
             return false;
         }
-
-        if (FeatureFlags.ENABLE_CUSTOM_WIDGETS
-                && appWidgetId <= LauncherAppWidgetInfo.CUSTOM_WIDGET_ID) {
+        if (appWidgetId <= LauncherAppWidgetInfo.CUSTOM_WIDGET_ID) {
             return true;
         }
         return mAppWidgetManager.bindAppWidgetIdIfAllowed(
@@ -108,9 +104,8 @@
             }
         }
 
-        if (FeatureFlags.ENABLE_CUSTOM_WIDGETS && Process.myUserHandle().equals(user)) {
-            for (LauncherAppWidgetProviderInfo info :
-                    CustomWidgetParser.getCustomWidgets(mContext)) {
+        if (Process.myUserHandle().equals(user)) {
+            for (LauncherAppWidgetProviderInfo info : getCustomWidgets()) {
                 if (info.provider.equals(provider)) {
                     return info;
                 }
@@ -131,13 +126,13 @@
                 result.put(new ComponentKey(info.provider, user), info);
             }
         }
-
-        if (FeatureFlags.ENABLE_CUSTOM_WIDGETS) {
-            for (LauncherAppWidgetProviderInfo info :
-                    CustomWidgetParser.getCustomWidgets(mContext)) {
-                result.put(new ComponentKey(info.provider, info.getProfile()), info);
-            }
+        for (LauncherAppWidgetProviderInfo info : getCustomWidgets()) {
+            result.put(new ComponentKey(info.provider, info.getProfile()), info);
         }
         return result;
     }
+
+    List<CustomAppWidgetProviderInfo> getCustomWidgets() {
+        return CustomWidgetManager.INSTANCE.get(mContext).getCustomWidgets();
+    }
 }
diff --git a/src/com/android/launcher3/compat/AppWidgetManagerCompatVO.java b/src/com/android/launcher3/compat/AppWidgetManagerCompatVO.java
index b7b0563..11ec333 100644
--- a/src/com/android/launcher3/compat/AppWidgetManagerCompatVO.java
+++ b/src/com/android/launcher3/compat/AppWidgetManagerCompatVO.java
@@ -19,14 +19,14 @@
 import android.appwidget.AppWidgetProviderInfo;
 import android.content.Context;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.PackageUserKey;
 
 import java.util.Collections;
 import java.util.List;
 
-import androidx.annotation.Nullable;
-
 class AppWidgetManagerCompatVO extends AppWidgetManagerCompatVL {
 
     AppWidgetManagerCompatVO(Context context) {
diff --git a/src/com/android/launcher3/compat/LauncherAppsCompat.java b/src/com/android/launcher3/compat/LauncherAppsCompat.java
index 58fc73d..39f6949 100644
--- a/src/com/android/launcher3/compat/LauncherAppsCompat.java
+++ b/src/com/android/launcher3/compat/LauncherAppsCompat.java
@@ -22,30 +22,34 @@
 import android.content.pm.ApplicationInfo;
 import android.content.pm.LauncherActivityInfo;
 import android.content.pm.PackageInstaller;
+import android.content.pm.PackageInstaller.SessionCallback;
 import android.content.pm.ShortcutInfo;
 import android.graphics.Rect;
 import android.os.Bundle;
 import android.os.UserHandle;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.Utilities;
+import com.android.launcher3.util.LooperExecutor;
 import com.android.launcher3.util.PackageUserKey;
 
 import java.util.List;
 
-import androidx.annotation.Nullable;
-
 public abstract class LauncherAppsCompat {
 
     public interface OnAppsChangedCallbackCompat {
-        void onPackageRemoved(String packageName, UserHandle user);
-        void onPackageAdded(String packageName, UserHandle user);
-        void onPackageChanged(String packageName, UserHandle user);
-        void onPackagesAvailable(String[] packageNames, UserHandle user, boolean replacing);
-        void onPackagesUnavailable(String[] packageNames, UserHandle user, boolean replacing);
-        void onPackagesSuspended(String[] packageNames, UserHandle user);
-        void onPackagesUnsuspended(String[] packageNames, UserHandle user);
-        void onShortcutsChanged(String packageName, List<ShortcutInfo> shortcuts,
-                UserHandle user);
+        default void onPackageRemoved(String packageName, UserHandle user) { }
+        default void onPackageAdded(String packageName, UserHandle user) { }
+        default void onPackageChanged(String packageName, UserHandle user) { }
+        default void onPackagesAvailable(String[] packageNames, UserHandle user,
+                boolean replacing) { }
+        default void onPackagesUnavailable(String[] packageNames, UserHandle user,
+                boolean replacing) { }
+        default void onPackagesSuspended(String[] packageNames, UserHandle user) { }
+        default void onPackagesUnsuspended(String[] packageNames, UserHandle user) { }
+        default void onShortcutsChanged(String packageName, List<ShortcutInfo> shortcuts,
+                UserHandle user) { }
     }
 
     protected LauncherAppsCompat() {
@@ -88,4 +92,8 @@
             @Nullable PackageUserKey packageUser);
 
     public abstract List<PackageInstaller.SessionInfo> getAllPackageInstallerSessions();
+
+    public abstract void registerSessionCallback(LooperExecutor executor,
+                                                 SessionCallback sessionCallback);
+    public abstract void unregisterSessionCallback(SessionCallback sessionCallback);
 }
diff --git a/src/com/android/launcher3/compat/LauncherAppsCompatVL.java b/src/com/android/launcher3/compat/LauncherAppsCompatVL.java
index 1885d8f..281274c 100644
--- a/src/com/android/launcher3/compat/LauncherAppsCompatVL.java
+++ b/src/com/android/launcher3/compat/LauncherAppsCompatVL.java
@@ -23,6 +23,7 @@
 import android.content.pm.LauncherActivityInfo;
 import android.content.pm.LauncherApps;
 import android.content.pm.PackageInstaller;
+import android.content.pm.PackageInstaller.SessionCallback;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.content.pm.ShortcutInfo;
@@ -35,6 +36,7 @@
 
 import com.android.launcher3.compat.ShortcutConfigActivityInfo.ShortcutConfigActivityInfoVL;
 import com.android.launcher3.testing.TestProtocol;
+import com.android.launcher3.util.LooperExecutor;
 import com.android.launcher3.util.PackageUserKey;
 
 import java.util.ArrayList;
@@ -212,5 +214,17 @@
     public List<PackageInstaller.SessionInfo> getAllPackageInstallerSessions() {
         return mContext.getPackageManager().getPackageInstaller().getAllSessions();
     }
+
+    @Override
+    public void registerSessionCallback(LooperExecutor executor, SessionCallback sessionCallback) {
+        mContext.getPackageManager().getPackageInstaller().registerSessionCallback(sessionCallback,
+                executor.getHandler());
+    }
+
+    @Override
+    public void unregisterSessionCallback(SessionCallback sessionCallback) {
+        mContext.getPackageManager().getPackageInstaller()
+                .unregisterSessionCallback(sessionCallback);
+    }
 }
 
diff --git a/src/com/android/launcher3/compat/LauncherAppsCompatVO.java b/src/com/android/launcher3/compat/LauncherAppsCompatVO.java
index 6e7a1bd..5e13d00 100644
--- a/src/com/android/launcher3/compat/LauncherAppsCompatVO.java
+++ b/src/com/android/launcher3/compat/LauncherAppsCompatVO.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.compat;
 
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.Intent;
@@ -30,19 +32,17 @@
 import android.os.Process;
 import android.os.UserHandle;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.LauncherAppState;
-import com.android.launcher3.LauncherModel;
 import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.compat.ShortcutConfigActivityInfo.ShortcutConfigActivityInfoVO;
 import com.android.launcher3.icons.LauncherIcons;
-import com.android.launcher3.util.LooperExecutor;
 import com.android.launcher3.util.PackageUserKey;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import androidx.annotation.Nullable;
-
 @TargetApi(26)
 public class LauncherAppsCompatVO extends LauncherAppsCompatVL {
 
@@ -120,7 +120,7 @@
                 }
             } else {
                 // Block the worker thread until the accept() is called.
-                new LooperExecutor(LauncherModel.getWorkerLooper()).execute(new Runnable() {
+                MODEL_EXECUTOR.execute(new Runnable() {
                     @Override
                     public void run() {
                         try {
diff --git a/src/com/android/launcher3/compat/LauncherAppsCompatVQ.java b/src/com/android/launcher3/compat/LauncherAppsCompatVQ.java
index 0a1811e..48805af 100644
--- a/src/com/android/launcher3/compat/LauncherAppsCompatVQ.java
+++ b/src/com/android/launcher3/compat/LauncherAppsCompatVQ.java
@@ -18,8 +18,10 @@
 
 import android.annotation.TargetApi;
 import android.content.Context;
-import android.content.Intent;
 import android.content.pm.PackageInstaller;
+import android.content.pm.PackageInstaller.SessionCallback;
+
+import com.android.launcher3.util.LooperExecutor;
 
 import java.util.List;
 
@@ -33,4 +35,14 @@
     public List<PackageInstaller.SessionInfo> getAllPackageInstallerSessions() {
         return mLauncherApps.getAllPackageInstallerSessions();
     }
+
+    @Override
+    public void registerSessionCallback(LooperExecutor executor, SessionCallback sessionCallback) {
+        mLauncherApps.registerPackageInstallerSessionCallback(executor, sessionCallback);
+    }
+
+    @Override
+    public void unregisterSessionCallback(SessionCallback sessionCallback) {
+        mLauncherApps.unregisterPackageInstallerSessionCallback(sessionCallback);
+    }
 }
diff --git a/src/com/android/launcher3/compat/PackageInstallerCompatVL.java b/src/com/android/launcher3/compat/PackageInstallerCompatVL.java
index 879d963..409b21d 100644
--- a/src/com/android/launcher3/compat/PackageInstallerCompatVL.java
+++ b/src/com/android/launcher3/compat/PackageInstallerCompatVL.java
@@ -16,13 +16,14 @@
 
 package com.android.launcher3.compat;
 
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageInstaller;
 import android.content.pm.PackageInstaller.SessionCallback;
 import android.content.pm.PackageInstaller.SessionInfo;
 import android.content.pm.PackageManager;
-import android.os.Handler;
 import android.os.UserHandle;
 import android.text.TextUtils;
 import android.util.SparseArray;
@@ -31,7 +32,6 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.LauncherAppState;
-import com.android.launcher3.LauncherModel;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSet;
@@ -53,7 +53,6 @@
 
     @Thunk final PackageInstaller mInstaller;
     private final IconCache mCache;
-    private final Handler mWorker;
     private final Context mAppContext;
     private final HashMap<String,Boolean> mSessionVerifiedMap = new HashMap<>();
     private final LauncherAppsCompat mLauncherApps;
@@ -63,11 +62,10 @@
         mAppContext = context.getApplicationContext();
         mInstaller = context.getPackageManager().getPackageInstaller();
         mCache = LauncherAppState.getInstance(context).getIconCache();
-        mWorker = new Handler(LauncherModel.getWorkerLooper());
-        mInstaller.registerSessionCallback(mCallback, mWorker);
         mLauncherApps = LauncherAppsCompat.getInstance(context);
-        mPromiseIconIds = IntSet.wrap(IntArray.wrap(Utilities.getIntArrayFromString(
-                getPrefs(context).getString(PROMISE_ICON_IDS, ""))));
+        mLauncherApps.registerSessionCallback(MODEL_EXECUTOR, mCallback);
+        mPromiseIconIds = IntSet.wrap(IntArray.fromConcatString(
+                getPrefs(context).getString(PROMISE_ICON_IDS, "")));
 
         cleanUpPromiseIconIds();
     }
@@ -127,7 +125,7 @@
 
     @Override
     public void onStop() {
-        mInstaller.unregisterSessionCallback(mCallback);
+        mLauncherApps.unregisterSessionCallback(mCallback);
     }
 
     @Thunk void sendUpdate(PackageInstallInfo info) {
@@ -223,12 +221,14 @@
         private SessionInfo pushSessionDisplayToLauncher(int sessionId) {
             SessionInfo session = verify(mInstaller.getSessionInfo(sessionId));
             if (session != null && session.getAppPackageName() != null) {
+                UserHandle user = getUserHandle(session);
                 mActiveSessions.put(session.getSessionId(),
-                        new PackageUserKey(session.getAppPackageName(), getUserHandle(session)));
-                addSessionInfoToCache(session, getUserHandle(session));
+                        new PackageUserKey(session.getAppPackageName(), user));
+                addSessionInfoToCache(session, user);
                 LauncherAppState app = LauncherAppState.getInstanceNoCreate();
                 if (app != null) {
-                    app.getModel().updateSessionDisplayInfo(session.getAppPackageName());
+                    app.getModel().updateSessionDisplayInfo(session.getAppPackageName(),
+                            user);
                 }
                 return session;
             }
diff --git a/src/com/android/launcher3/config/BaseFlags.java b/src/com/android/launcher3/config/BaseFlags.java
index 025087b..9c9001a 100644
--- a/src/com/android/launcher3/config/BaseFlags.java
+++ b/src/com/android/launcher3/config/BaseFlags.java
@@ -23,11 +23,11 @@
 
 import androidx.annotation.GuardedBy;
 import androidx.annotation.Keep;
-
 import androidx.annotation.VisibleForTesting;
-import com.android.launcher3.Utilities;
 
+import com.android.launcher3.Utilities;
 import com.android.launcher3.uioverrides.TogglableFlag;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.SortedMap;
@@ -74,9 +74,6 @@
     //Feature flag to enable pulling down navigation shade from workspace.
     public static final boolean PULL_DOWN_STATUS_BAR = true;
 
-    // When true, custom widgets are loaded using CustomWidgetParser.
-    public static final boolean ENABLE_CUSTOM_WIDGETS = false;
-
     // Features to control Launcher3Go behavior
     public static final boolean GO_DISABLE_WIDGETS = false;
 
@@ -111,10 +108,21 @@
             "FAKE_LANDSCAPE_UI", false,
             "Rotate launcher UI instead of using transposed layout");
 
+    public static final TogglableFlag FOLDER_NAME_SUGGEST = new TogglableFlag(
+            "FOLDER_NAME_SUGGEST", false,
+            "Suggests folder names instead of blank text.");
+
     public static final TogglableFlag APP_SEARCH_IMPROVEMENTS = new TogglableFlag(
-            "APP_SEARCH_IMPROVEMENTS", false,
+            "APP_SEARCH_IMPROVEMENTS", true,
             "Adds localized title and keyword search and ranking");
 
+    public static final TogglableFlag ENABLE_PREDICTION_DISMISS = new TogglableFlag(
+            "ENABLE_PREDICTION_DISMISS", false, "Allow option to dimiss apps from predicted list");
+
+    public static final TogglableFlag ASSISTANT_GIVES_LAUNCHER_FOCUS = new TogglableFlag(
+            "ASSISTANT_GIVES_LAUNCHER_FOCUS", false,
+            "Allow Launcher to handle nav bar gestures while Assistant is running over it");
+
     public static void initialize(Context context) {
         // Avoid the disk read for user builds
         if (Utilities.IS_DEBUG_DEVICE) {
@@ -124,6 +132,7 @@
                 }
             }
         }
+        APP_SEARCH_IMPROVEMENTS.initialize(context);
     }
 
     static List<TogglableFlag> getTogglableFlags() {
diff --git a/src/com/android/launcher3/dragndrop/AddItemActivity.java b/src/com/android/launcher3/dragndrop/AddItemActivity.java
index a2dcbf8..9fb1090 100644
--- a/src/com/android/launcher3/dragndrop/AddItemActivity.java
+++ b/src/com/android/launcher3/dragndrop/AddItemActivity.java
@@ -20,6 +20,7 @@
 import static com.android.launcher3.logging.LoggerUtils.newContainerTarget;
 import static com.android.launcher3.logging.LoggerUtils.newItemTarget;
 import static com.android.launcher3.logging.LoggerUtils.newLauncherEvent;
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
 import android.annotation.TargetApi;
 import android.app.ActivityOptions;
@@ -47,7 +48,6 @@
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherAppWidgetHost;
 import com.android.launcher3.LauncherAppWidgetProviderInfo;
-import com.android.launcher3.LauncherModel;
 import com.android.launcher3.R;
 import com.android.launcher3.compat.AppWidgetManagerCompat;
 import com.android.launcher3.compat.LauncherAppsCompatVO;
@@ -55,7 +55,6 @@
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.launcher3.util.InstantAppResolver;
-import com.android.launcher3.util.LooperExecutor;
 import com.android.launcher3.views.BaseDragLayer;
 import com.android.launcher3.widget.PendingAddShortcutInfo;
 import com.android.launcher3.widget.PendingAddWidgetInfo;
@@ -234,7 +233,7 @@
                 mWidgetCell.applyFromCellItem(item, mApp.getWidgetCache());
                 mWidgetCell.ensurePreview();
             }
-        }.executeOnExecutor(new LooperExecutor(LauncherModel.getWorkerLooper()));
+        }.executeOnExecutor(MODEL_EXECUTOR);
         // TODO: Create a worker looper executor and reuse that everywhere.
     }
 
diff --git a/src/com/android/launcher3/dragndrop/DragController.java b/src/com/android/launcher3/dragndrop/DragController.java
index b72fd98..dcdf5d6 100644
--- a/src/com/android/launcher3/dragndrop/DragController.java
+++ b/src/com/android/launcher3/dragndrop/DragController.java
@@ -19,6 +19,7 @@
 import static com.android.launcher3.AbstractFloatingView.TYPE_DISCOVERY_BOUNCE;
 import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY;
 import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.Utilities.ATLEAST_Q;
 
 import android.animation.ValueAnimator;
 import android.content.ComponentName;
@@ -56,6 +57,12 @@
 public class DragController implements DragDriver.EventListener, TouchController {
     private static final boolean PROFILE_DRAWING_DURING_DRAG = false;
 
+    /**
+     * When a drag is started from a deep press, you need to drag this much farther than normal to
+     * end a pre-drag. See {@link DragOptions.PreDragCondition#shouldStartDrag(double)}.
+     */
+    private static final int DEEP_PRESS_DISTANCE_FACTOR = 3;
+
     @Thunk Launcher mLauncher;
     private FlingToDeleteHelper mFlingToDeleteHelper;
 
@@ -91,9 +98,10 @@
 
     private DropTarget mLastDropTarget;
 
-    @Thunk int mLastTouch[] = new int[2];
-    @Thunk long mLastTouchUpTime = -1;
-    @Thunk int mDistanceSinceScroll = 0;
+    private final int[] mLastTouch = new int[2];
+    private long mLastTouchUpTime = -1;
+    private int mLastTouchClassification;
+    private int mDistanceSinceScroll = 0;
 
     private int mTmpPoint[] = new int[2];
     private Rect mDragLayerRect = new Rect();
@@ -204,7 +212,7 @@
         }
 
         mLauncher.getDragLayer().performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
-        dragView.show(mMotionDownX, mMotionDownY);
+        dragView.show(mLastTouch[0], mLastTouch[1]);
         mDistanceSinceScroll = 0;
 
         if (!mIsInPreDrag) {
@@ -213,9 +221,7 @@
             mOptions.preDragCondition.onPreDragStart(mDragObject);
         }
 
-        mLastTouch[0] = mMotionDownX;
-        mLastTouch[1] = mMotionDownY;
-        handleMoveEvent(mMotionDownX, mMotionDownY);
+        handleMoveEvent(mLastTouch[0], mLastTouch[1]);
         mLauncher.getUserEventDispatcher().resetActionDurationMillis();
         return dragView;
     }
@@ -430,6 +436,11 @@
         final int[] dragLayerPos = getClampedDragLayerPos(ev.getX(), ev.getY());
         final int dragLayerX = dragLayerPos[0];
         final int dragLayerY = dragLayerPos[1];
+        mLastTouch[0] = dragLayerX;
+        mLastTouch[1] = dragLayerY;
+        if (ATLEAST_Q) {
+            mLastTouchClassification = ev.getClassification();
+        }
 
         switch (action) {
             case MotionEvent.ACTION_DOWN:
@@ -488,8 +499,12 @@
         mLastTouch[0] = x;
         mLastTouch[1] = y;
 
+        int distanceDragged = mDistanceSinceScroll;
+        if (ATLEAST_Q && mLastTouchClassification == MotionEvent.CLASSIFICATION_DEEP_PRESS) {
+            distanceDragged /= DEEP_PRESS_DISTANCE_FACTOR;
+        }
         if (mIsInPreDrag && mOptions.preDragCondition != null
-                && mOptions.preDragCondition.shouldStartDrag(mDistanceSinceScroll)) {
+                && mOptions.preDragCondition.shouldStartDrag(distanceDragged)) {
             callOnDragStart();
         }
     }
diff --git a/src/com/android/launcher3/dragndrop/DragLayer.java b/src/com/android/launcher3/dragndrop/DragLayer.java
index b59164a..cdc7061 100644
--- a/src/com/android/launcher3/dragndrop/DragLayer.java
+++ b/src/com/android/launcher3/dragndrop/DragLayer.java
@@ -284,7 +284,8 @@
             // The child may be scaled (always about the center of the view) so to account for it,
             // we have to offset the position by the scaled size.  Once we do that, we can center
             // the drag view about the scaled child view.
-            toY += Math.round(toScale * tv.getPaddingTop());
+            // padding will remain constant (does not scale with size)
+            toY += tv.getPaddingTop();
             toY -= dragView.getMeasuredHeight() * (1 - toScale) / 2;
             if (dragView.getDragVisualizeOffset() != null) {
                 toY -=  Math.round(toScale * dragView.getDragVisualizeOffset().y);
diff --git a/src/com/android/launcher3/dragndrop/DragView.java b/src/com/android/launcher3/dragndrop/DragView.java
index 09c5e5b..f66d07e 100644
--- a/src/com/android/launcher3/dragndrop/DragView.java
+++ b/src/com/android/launcher3/dragndrop/DragView.java
@@ -17,6 +17,7 @@
 package com.android.launcher3.dragndrop;
 
 import static com.android.launcher3.Utilities.getBadge;
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -41,16 +42,19 @@
 import android.os.Looper;
 import android.view.View;
 
+import androidx.dynamicanimation.animation.FloatPropertyCompat;
+import androidx.dynamicanimation.animation.SpringAnimation;
+import androidx.dynamicanimation.animation.SpringForce;
+
 import com.android.launcher3.FastBitmapDrawable;
+import com.android.launcher3.FirstFrameAnimatorHelper;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherModel;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.LauncherStateManager;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.FirstFrameAnimatorHelper;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.icons.LauncherIcons;
 import com.android.launcher3.util.Themes;
@@ -58,10 +62,6 @@
 
 import java.util.Arrays;
 
-import androidx.dynamicanimation.animation.FloatPropertyCompat;
-import androidx.dynamicanimation.animation.SpringAnimation;
-import androidx.dynamicanimation.animation.SpringForce;
-
 public class DragView extends View implements LauncherStateManager.StateListener {
     private static final ColorMatrix sTempMatrix1 = new ColorMatrix();
     private static final ColorMatrix sTempMatrix2 = new ColorMatrix();
@@ -210,7 +210,7 @@
             return;
         }
         // Load the adaptive icon on a background thread and add the view in ui thread.
-        new Handler(LauncherModel.getWorkerLooper()).postAtFrontOfQueue(new Runnable() {
+        MODEL_EXECUTOR.getHandler().postAtFrontOfQueue(new Runnable() {
             @Override
             public void run() {
                 Object[] outObj = new Object[1];
diff --git a/src/com/android/launcher3/dragndrop/FlingToDeleteHelper.java b/src/com/android/launcher3/dragndrop/FlingToDeleteHelper.java
index 589ad25..06b5c40 100644
--- a/src/com/android/launcher3/dragndrop/FlingToDeleteHelper.java
+++ b/src/com/android/launcher3/dragndrop/FlingToDeleteHelper.java
@@ -106,6 +106,7 @@
      * @return the vector at which the item was flung, or null if no fling was detected.
      */
     private PointF isFlingingToDelete() {
+        if (mVelocityTracker == null) return null;
         if (mDropTarget == null) {
             mDropTarget = (ButtonDropTarget) mLauncher.findViewById(R.id.delete_target_text);
         }
diff --git a/src/com/android/launcher3/dragndrop/FolderAdaptiveIcon.java b/src/com/android/launcher3/dragndrop/FolderAdaptiveIcon.java
index d8a1f99..0bb3fba 100644
--- a/src/com/android/launcher3/dragndrop/FolderAdaptiveIcon.java
+++ b/src/com/android/launcher3/dragndrop/FolderAdaptiveIcon.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.dragndrop;
 
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+
 import android.annotation.TargetApi;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
@@ -31,7 +33,6 @@
 import androidx.annotation.Nullable;
 
 import com.android.launcher3.Launcher;
-import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.R;
 import com.android.launcher3.folder.FolderIcon;
 import com.android.launcher3.folder.PreviewBackground;
@@ -85,7 +86,7 @@
         // Create the actual drawable on the UI thread to avoid race conditions with
         // FolderIcon draw pass
         try {
-            return new MainThreadExecutor().submit(() -> {
+            return MAIN_EXECUTOR.submit(() -> {
                 FolderIcon icon = launcher.findFolderIcon(folderId);
                 return icon == null ? null : createDrawableOnUiThread(icon, badge, dragViewSize);
             }).get();
diff --git a/src/com/android/launcher3/folder/Folder.java b/src/com/android/launcher3/folder/Folder.java
index f22b533..f483d78 100644
--- a/src/com/android/launcher3/folder/Folder.java
+++ b/src/com/android/launcher3/folder/Folder.java
@@ -17,6 +17,8 @@
 package com.android.launcher3.folder;
 
 import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY;
+import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_DESKTOP;
+import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_HOTSEAT;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.compat.AccessibilityManagerCompat.sendCustomAccessibilityEvent;
 
@@ -26,12 +28,12 @@
 import android.annotation.SuppressLint;
 import android.appwidget.AppWidgetHostView;
 import android.content.Context;
-import android.content.res.Resources;
 import android.graphics.Canvas;
 import android.graphics.Path;
 import android.graphics.Rect;
 import android.text.InputType;
 import android.text.Selection;
+import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.util.Pair;
@@ -74,7 +76,11 @@
 import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.logging.LoggerUtils;
 import com.android.launcher3.pageindicators.PageIndicatorDots;
+import com.android.launcher3.userevent.nano.LauncherLogProto;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ItemType;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
 import com.android.launcher3.util.Thunk;
 import com.android.launcher3.views.ClipPathView;
@@ -126,9 +132,6 @@
     private static final Rect sTempRect = new Rect();
     private static final int MIN_FOLDERS_FOR_HARDWARE_OPTIMIZATION = 10;
 
-    private static String sDefaultFolderName;
-    private static String sHintText;
-
     private final Alarm mReorderAlarm = new Alarm();
     private final Alarm mOnExitAlarm = new Alarm();
     private final Alarm mOnScrollHintAlarm = new Alarm();
@@ -148,7 +151,7 @@
     public ExtendedEditText mFolderName;
     private PageIndicatorDots mPageIndicator;
 
-    private View mFooter;
+    protected View mFooter;
     private int mFooterHeight;
 
     // Cell ranks used for drag and drop
@@ -173,8 +176,6 @@
     private boolean mDeleteFolderOnDropCompleted = false;
     private boolean mSuppressFolderDeletion = false;
     private boolean mItemAddedBackToSelfViaIcon = false;
-    @Thunk float mFolderIconPivotX;
-    @Thunk float mFolderIconPivotY;
     private boolean mIsEditingName = false;
 
     @ViewDebug.ExportedProperty(category = "launcher")
@@ -196,8 +197,6 @@
         super(context, attrs);
         setAlwaysDrawnWithCacheEnabled(false);
 
-        setLocaleDependentFields(getResources(), false /* force */);
-
         mLauncher = Launcher.getLauncher(context);
         // We need this view to be focusable in touch mode so that when text editing of the folder
         // name is complete, we have something to focus on, thus hiding the cursor and giving
@@ -315,10 +314,15 @@
         // Convert to a string here to ensure that no other state associated with the text field
         // gets saved.
         String newTitle = mFolderName.getText().toString();
-        mInfo.setTitle(newTitle);
+        mInfo.title = newTitle;
+        mFolderIcon.onTitleChanged(newTitle);
         mLauncher.getModelWriter().updateItemInDatabase(mInfo);
 
-        mFolderName.setHint(sDefaultFolderName.contentEquals(newTitle) ? sHintText : null);
+        if (TextUtils.isEmpty(mInfo.title)) {
+            mFolderName.setHint(R.string.folder_hint_text);
+        } else {
+            mFolderName.setHint(null);
+        }
 
         sendCustomAccessibilityEvent(
                 this, AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED,
@@ -385,7 +389,7 @@
         mInfo = info;
         ArrayList<WorkspaceItemInfo> children = info.contents;
         Collections.sort(children, ITEM_POS_COMPARATOR);
-        mContent.bindItems(children);
+        updateItemLocationsInDatabaseBatch();
 
         DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams();
         if (lp == null) {
@@ -393,30 +397,40 @@
             lp.customPosition = true;
             setLayoutParams(lp);
         }
-        centerAboutIcon();
-
         mItemsInvalidated = true;
-        updateTextViewFocus();
         mInfo.addListener(this);
 
-        if (!sDefaultFolderName.contentEquals(mInfo.title)) {
+        if (!TextUtils.isEmpty(mInfo.title)) {
             mFolderName.setText(mInfo.title);
             mFolderName.setHint(null);
         } else {
             mFolderName.setText("");
-            mFolderName.setHint(sHintText);
+            mFolderName.setHint(R.string.folder_hint_text);
         }
-
         // In case any children didn't come across during loading, clean up the folder accordingly
-        mFolderIcon.post(new Runnable() {
-            public void run() {
-                if (getItemCount() <= 1) {
-                    replaceFolderWithFinalItem();
-                }
+        mFolderIcon.post(() -> {
+            if (getItemCount() <= 1) {
+                replaceFolderWithFinalItem();
             }
         });
     }
 
+
+    /**
+     * Show suggested folder title.
+     */
+    public void showSuggestedTitle(CharSequence suggestName) {
+        if (FeatureFlags.FOLDER_NAME_SUGGEST.get() && mInfo.contents.size() == 2) {
+            if (!TextUtils.isEmpty(suggestName)) {
+                mFolderName.setHint(suggestName);
+                mFolderName.setText(suggestName);
+                mFolderName.showKeyboard();
+                mInfo.title = suggestName;
+            }
+            animateOpen();
+        }
+    }
+
     /**
      * Creates a new UserFolder, inflated from R.layout.user_folder.
      *
@@ -473,17 +487,49 @@
     }
 
     /**
+     * Opens the folder as part of a drag operation
+     */
+    public void beginExternalDrag() {
+        mIsExternalDrag = true;
+        mDragInProgress = true;
+
+        // Since this folder opened by another controller, it might not get onDrop or
+        // onDropComplete. Perform cleanup once drag-n-drop ends.
+        mDragController.addDragListener(this);
+
+        ArrayList<WorkspaceItemInfo> items = new ArrayList<>(mInfo.contents);
+        mEmptyCellRank = items.size();
+        items.add(null);    // Add an empty spot at the end
+
+        animateOpen(items, mEmptyCellRank / mContent.itemsPerPage());
+    }
+
+    /**
      * Opens the user folder described by the specified tag. The opening of the folder
      * is animated relative to the specified View. If the View is null, no animation
      * is played.
      */
     public void animateOpen() {
+        animateOpen(mInfo.contents, 0);
+    }
+
+    /**
+     * Opens the user folder described by the specified tag. The opening of the folder
+     * is animated relative to the specified View. If the View is null, no animation
+     * is played.
+     */
+    private void animateOpen(List<WorkspaceItemInfo> items, int pageNo) {
         Folder openFolder = getOpen(mLauncher);
         if (openFolder != null && openFolder != this) {
             // Close any open folder before opening a folder.
             openFolder.close(true);
         }
 
+        mContent.bindItems(items);
+        centerAboutIcon();
+        mItemsInvalidated = true;
+        updateTextViewFocus();
+
         mIsOpen = true;
 
         DragLayer dragLayer = mLauncher.getDragLayer();
@@ -500,18 +546,13 @@
         }
 
         mContent.completePendingPageChanges();
-        if (!mDragInProgress) {
-            // Open on the first page.
-            mContent.snapToPageImmediately(0);
-        }
+        mContent.snapToPageImmediately(pageNo);
 
         // This is set to true in close(), but isn't reset to false until onDropCompleted(). This
         // leads to an inconsistent state if you drag out of the folder and drag back in without
         // dropping. One resulting issue is that replaceFolderWithFinalItem() can be called twice.
         mDeleteFolderOnDropCompleted = false;
 
-        centerAboutIcon();
-
         AnimatorSet anim = new FolderAnimationManager(this, true /* isOpening */).getAnimator();
         anim.addListener(new AnimatorListenerAdapter() {
             @Override
@@ -524,7 +565,11 @@
                 mState = STATE_OPEN;
                 announceAccessibilityChanges();
 
-                mLauncher.getUserEventDispatcher().resetElapsedContainerMillis("folder opened");
+                mLauncher.getUserEventDispatcher().logActionOnItem(
+                        Touch.TAP,
+                        Direction.NONE,
+                        ItemType.FOLDER_ICON, mInfo.cellX, mInfo.cellY);
+
                 mContent.setFocusOnFirstChild();
             }
         });
@@ -570,20 +615,9 @@
         if (mDragController.isDragging()) {
             mDragController.forceTouchMove();
         }
-
         mContent.verifyVisibleHighResIcons(mContent.getNextPage());
     }
 
-    public void beginExternalDrag() {
-        mEmptyCellRank = mContent.allocateRankForNewItem();
-        mIsExternalDrag = true;
-        mDragInProgress = true;
-
-        // Since this folder opened by another controller, it might not get onDrop or
-        // onDropComplete. Perform cleanup once drag-n-drop ends.
-        mDragController.addDragListener(this);
-    }
-
     @Override
     protected boolean isOfType(int type) {
         return (type & TYPE_FOLDER) != 0;
@@ -668,6 +702,8 @@
             } else if (mDragInProgress) {
                 mDeleteFolderOnDropCompleted = true;
             }
+        } else if (!mDragInProgress) {
+            mContent.unbindItems();
         }
         mSuppressFolderDeletion = false;
         clearDragInfo();
@@ -822,9 +858,9 @@
         }
     }
 
+    @Override
     public void onDropCompleted(final View target, final DragObject d,
             final boolean success) {
-
         if (success) {
             if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon && target != this) {
                 replaceFolderWithFinalItem();
@@ -834,9 +870,9 @@
             WorkspaceItemInfo info = (WorkspaceItemInfo) d.dragInfo;
             View icon = (mCurrentDragView != null && mCurrentDragView.getTag() == info)
                     ? mCurrentDragView : mContent.createNewView(info);
-            ArrayList<View> views = getItemsInReadingOrder();
+            ArrayList<View> views = getIconsInReadingOrder();
             views.add(info.rank, icon);
-            mContent.arrangeChildren(views, views.size());
+            mContent.arrangeChildren(views);
             mItemsInvalidated = true;
 
             try (SuppressInfoChanges s = new SuppressInfoChanges()) {
@@ -863,7 +899,6 @@
         // Reordering may have occured, and we need to save the new item locations. We do this once
         // at the end to prevent unnecessary database operations.
         updateItemLocationsInDatabaseBatch();
-
         // Use the item count to check for multi-page as the folder UI may not have
         // been refreshed yet.
         if (getItemCount() <= mContent.itemsPerPage()) {
@@ -874,16 +909,21 @@
     }
 
     private void updateItemLocationsInDatabaseBatch() {
-        ArrayList<View> list = getItemsInReadingOrder();
-        ArrayList<ItemInfo> items = new ArrayList<ItemInfo>();
-        for (int i = 0; i < list.size(); i++) {
-            View v = list.get(i);
-            ItemInfo info = (ItemInfo) v.getTag();
-            info.rank = i;
-            items.add(info);
+        FolderGridOrganizer verifier = new FolderGridOrganizer(
+                mLauncher.getDeviceProfile().inv).setFolderInfo(mInfo);
+
+        ArrayList<ItemInfo> items = new ArrayList<>();
+        int total = mInfo.contents.size();
+        for (int i = 0; i < total; i++) {
+            WorkspaceItemInfo itemInfo = mInfo.contents.get(i);
+            if (verifier.updateRankAndPos(itemInfo, i)) {
+                items.add(itemInfo);
+            }
         }
 
-        mLauncher.getModelWriter().moveItemsInDatabase(items, mInfo.id, 0);
+        if (!items.isEmpty()) {
+            mLauncher.getModelWriter().moveItemsInDatabase(items, mInfo.id, 0);
+        }
     }
 
     public void notifyDrop() {
@@ -948,28 +988,16 @@
         setPivotX(folderPivotX);
         setPivotY(folderPivotY);
 
-        mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() *
-                (1.0f * folderPivotX / width));
-        mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() *
-                (1.0f * folderPivotY / height));
-
         lp.width = width;
         lp.height = height;
         lp.x = left;
         lp.y = top;
     }
 
-    public float getPivotXForIconAnimation() {
-        return mFolderIconPivotX;
-    }
-    public float getPivotYForIconAnimation() {
-        return mFolderIconPivotY;
-    }
-
-    private int getContentAreaHeight() {
+    protected int getContentAreaHeight() {
         DeviceProfile grid = mLauncher.getDeviceProfile();
-        int maxContentAreaHeight = grid.availableHeightPx
-                - grid.getTotalWorkspacePadding().y - mFooterHeight;
+        int maxContentAreaHeight = grid.availableHeightPx - grid.getTotalWorkspacePadding().y
+                - mFooterHeight;
         int height = Math.min(maxContentAreaHeight,
                 mContent.getDesiredHeight());
         return Math.max(height, MIN_CONTENT_DIMEN);
@@ -1021,22 +1049,12 @@
      * Rearranges the children based on their rank.
      */
     public void rearrangeChildren() {
-        rearrangeChildren(-1);
-    }
-
-    /**
-     * Rearranges the children based on their rank.
-     * @param itemCount if greater than the total children count, empty spaces are left at the end,
-     * otherwise it is ignored.
-     */
-    public void rearrangeChildren(int itemCount) {
-        ArrayList<View> views = getItemsInReadingOrder();
-        mContent.arrangeChildren(views, Math.max(itemCount, views.size()));
+        mContent.arrangeChildren(getIconsInReadingOrder());
         mItemsInvalidated = true;
     }
 
     public int getItemCount() {
-        return mContent.getItemCount();
+        return mInfo.contents.size();
     }
 
     @Thunk void replaceFolderWithFinalItem() {
@@ -1044,7 +1062,7 @@
         Runnable onCompleteRunnable = new Runnable() {
             @Override
             public void run() {
-                int itemCount = mInfo.contents.size();
+                int itemCount = getItemCount();
                 if (itemCount <= 1) {
                     View newIcon = null;
 
@@ -1121,9 +1139,12 @@
                     return false;
                 }
             });
+        } else {
+            setOnKeyListener(null);
         }
     }
 
+    @Override
     public void onDrop(DragObject d, DragOptions options) {
         // If the icon was dropped while the page was being scrolled, we need to compute
         // the target location again such that the icon is placed of the final page.
@@ -1171,12 +1192,6 @@
                 // before creating the view, so that WorkspaceItemInfo is updated appropriately.
                 mLauncher.getModelWriter().addOrMoveItemInDatabase(
                         si, mInfo.id, 0, si.cellX, si.cellY);
-
-                // We only need to update the locations if it doesn't get handled in
-                // #onDropCompleted.
-                if (d.dragSource != this) {
-                    updateItemLocationsInDatabaseBatch();
-                }
                 mIsExternalDrag = false;
             } else {
                 currentDragView = mCurrentDragView;
@@ -1203,7 +1218,13 @@
 
             // Temporarily suppress the listener, as we did all the work already here.
             try (SuppressInfoChanges s = new SuppressInfoChanges()) {
-                mInfo.add(si, false);
+                mInfo.add(si, mEmptyCellRank, false);
+            }
+
+            // We only need to update the locations if it doesn't get handled in
+            // #onDropCompleted.
+            if (d.dragSource != this) {
+                updateItemLocationsInDatabaseBatch();
             }
         }
 
@@ -1226,22 +1247,29 @@
     // to correspond to the animation of the icon back into the folder. This is
     public void hideItem(WorkspaceItemInfo info) {
         View v = getViewForInfo(info);
-        v.setVisibility(INVISIBLE);
+        if (v != null) {
+            v.setVisibility(INVISIBLE);
+        }
     }
     public void showItem(WorkspaceItemInfo info) {
         View v = getViewForInfo(info);
-        v.setVisibility(VISIBLE);
+        if (v != null) {
+            v.setVisibility(VISIBLE);
+        }
     }
 
     @Override
     public void onAdd(WorkspaceItemInfo item, int rank) {
-        View view = mContent.createAndAddViewForRank(item, rank);
+        FolderGridOrganizer verifier = new FolderGridOrganizer(
+                mLauncher.getDeviceProfile().inv).setFolderInfo(mInfo);
+        verifier.updateRankAndPos(item, rank);
         mLauncher.getModelWriter().addOrMoveItemInDatabase(item, mInfo.id, 0, item.cellX,
                 item.cellY);
+        updateItemLocationsInDatabaseBatch();
 
-        ArrayList<View> items = new ArrayList<>(getItemsInReadingOrder());
-        items.add(rank, view);
-        mContent.arrangeChildren(items, items.size());
+        if (mContent.areViewsBound()) {
+            mContent.createAndAddViewForRank(item, rank);
+        }
         mItemsInvalidated = true;
     }
 
@@ -1264,13 +1292,7 @@
     }
 
     private View getViewForInfo(final WorkspaceItemInfo item) {
-        return mContent.iterateOverItems(new ItemOperator() {
-
-            @Override
-            public boolean evaluate(ItemInfo info, View view) {
-                return info == item;
-            }
-        });
+        return mContent.iterateOverItems((info, view) -> info == item);
     }
 
     @Override
@@ -1278,32 +1300,27 @@
         updateTextViewFocus();
     }
 
-    @Override
-    public void prepareAutoUpdate() {
-        close(false);
+    /**
+     * Utility methods to iterate over items of the view
+     */
+    public void iterateOverItems(ItemOperator op) {
+        mContent.iterateOverItems(op);
     }
 
-    public void onTitleChanged(CharSequence title) {
-    }
-
-    public ArrayList<View> getItemsInReadingOrder() {
+    /**
+     * Returns the sorted list of all the icons in the folder
+     */
+    public ArrayList<View> getIconsInReadingOrder() {
         if (mItemsInvalidated) {
             mItemsInReadingOrder.clear();
-            mContent.iterateOverItems(new ItemOperator() {
-
-                @Override
-                public boolean evaluate(ItemInfo info, View view) {
-                    mItemsInReadingOrder.add(view);
-                    return false;
-                }
-            });
+            mContent.iterateOverItems((i, v) -> !mItemsInReadingOrder.add(v));
             mItemsInvalidated = false;
         }
         return mItemsInReadingOrder;
     }
 
     public List<BubbleTextView> getItemsOnPage(int page) {
-        ArrayList<View> allItems = getItemsInReadingOrder();
+        ArrayList<View> allItems = getIconsInReadingOrder();
         int lastPage = mContent.getPageCount() - 1;
         int totalItemsInFolder = allItems.size();
         int itemsPerPage = mContent.itemsPerPage();
@@ -1326,6 +1343,9 @@
             if (hasFocus) {
                 startEditingFolderName();
             } else {
+                if (isEditingName()) {
+                    logEditFolderLabel();
+                }
                 mFolderName.dispatchBackKey();
             }
         }
@@ -1482,15 +1502,6 @@
         return false;
     }
 
-    public static void setLocaleDependentFields(Resources res, boolean force) {
-        if (sDefaultFolderName == null || force) {
-            sDefaultFolderName = res.getString(R.string.folder_name);
-        }
-        if (sHintText == null || force) {
-            sHintText = res.getString(R.string.folder_hint_text);
-        }
-    }
-
     /**
      * Alternative to using {@link #getClipToOutline()} as it only works with derivatives of
      * rounded rect.
@@ -1512,4 +1523,39 @@
             super.draw(canvas);
         }
     }
+
+    private void logEditFolderLabel() {
+        LauncherLogProto.LauncherEvent ev = new LauncherLogProto.LauncherEvent();
+        LauncherLogProto.Action action = new LauncherLogProto.Action();
+        action.type = LauncherLogProto.Action.Type.SOFT_KEYBOARD;
+        ev.action = action;
+
+        LauncherLogProto.Target edittext_target = new LauncherLogProto.Target();
+        edittext_target.type = LauncherLogProto.Target.Type.ITEM;
+        edittext_target.itemType = LauncherLogProto.ItemType.EDITTEXT;
+
+        LauncherLogProto.Target folder_target = new LauncherLogProto.Target();
+        folder_target.type = LauncherLogProto.Target.Type.CONTAINER;
+        folder_target.containerType = LauncherLogProto.ContainerType.FOLDER;
+        folder_target.pageIndex = mInfo.screenId;
+        folder_target.gridX = mInfo.cellX;
+        folder_target.gridY = mInfo.cellY;
+        folder_target.cardinality = mInfo.contents.size();
+
+        LauncherLogProto.Target parent_target = new LauncherLogProto.Target();
+        parent_target.type = LauncherLogProto.Target.Type.CONTAINER;
+        switch (mInfo.container) {
+            case CONTAINER_HOTSEAT:
+                parent_target.containerType = LauncherLogProto.ContainerType.HOTSEAT;
+                break;
+            case CONTAINER_DESKTOP:
+                parent_target.containerType = LauncherLogProto.ContainerType.WORKSPACE;
+                break;
+            default:
+                Log.e(TAG, String.format("Expected container to be either %s or %s but found %s.",
+                        CONTAINER_HOTSEAT, CONTAINER_DESKTOP, mInfo.container));
+        }
+        ev.srcTarget = new LauncherLogProto.Target[]{edittext_target, folder_target, parent_target};
+        mLauncher.getUserEventDispatcher().dispatchUserEvent(ev, null);
+    }
 }
diff --git a/src/com/android/launcher3/folder/FolderAnimationManager.java b/src/com/android/launcher3/folder/FolderAnimationManager.java
index 962f215..1310d37 100644
--- a/src/com/android/launcher3/folder/FolderAnimationManager.java
+++ b/src/com/android/launcher3/folder/FolderAnimationManager.java
@@ -59,6 +59,8 @@
  */
 public class FolderAnimationManager {
 
+    private static final int FOLDER_NAME_ALPHA_DURATION = 32;
+
     private Folder mFolder;
     private FolderPagedView mContent;
     private GradientDrawable mFolderBackground;
@@ -79,7 +81,7 @@
     private final TimeInterpolator mLargeFolderPreviewItemCloseInterpolator;
 
     private final PreviewItemDrawingParams mTmpParams = new PreviewItemDrawingParams(0, 0, 0, 0);
-
+    private final FolderGridOrganizer mPreviewVerifier;
 
     public FolderAnimationManager(Folder folder, boolean isOpening) {
         mFolder = folder;
@@ -91,6 +93,7 @@
 
         mContext = folder.getContext();
         mLauncher = folder.mLauncher;
+        mPreviewVerifier = new FolderGridOrganizer(mLauncher.getDeviceProfile().inv);
 
         mIsOpening = isOpening;
 
@@ -113,7 +116,7 @@
     public AnimatorSet getAnimator() {
         final DragLayer.LayoutParams lp = (DragLayer.LayoutParams) mFolder.getLayoutParams();
         ClippedFolderIconLayoutRule rule = mFolderIcon.getLayoutRule();
-        final List<BubbleTextView> itemsInPreview = mFolderIcon.getPreviewItems();
+        final List<BubbleTextView> itemsInPreview = getPreviewIconsOnPage(0);
 
         // Match position of the FolderIcon
         final Rect folderIconPos = new Rect();
@@ -129,11 +132,19 @@
                 * scaleRelativeToDragLayer;
         final float finalScale = 1f;
         float scale = mIsOpening ? initialScale : finalScale;
-        mFolder.setScaleX(scale);
-        mFolder.setScaleY(scale);
         mFolder.setPivotX(0);
         mFolder.setPivotY(0);
 
+        // Scale the contents of the folder.
+        mFolder.mContent.setScaleX(scale);
+        mFolder.mContent.setScaleY(scale);
+        mFolder.mContent.setPivotX(0);
+        mFolder.mContent.setPivotY(0);
+        mFolder.mFooter.setScaleX(scale);
+        mFolder.mFooter.setScaleY(scale);
+        mFolder.mFooter.setPivotX(0);
+        mFolder.mFooter.setPivotY(0);
+
         // We want to create a small X offset for the preview items, so that they follow their
         // expected path to their final locations. ie. an icon should not move right, if it's final
         // location is to its left. This value is arbitrarily defined.
@@ -142,14 +153,13 @@
             previewItemOffsetX = (int) (lp.width * initialScale - initialSize - previewItemOffsetX);
         }
 
-        final int paddingOffsetX = (int) ((mFolder.getPaddingLeft() + mContent.getPaddingLeft())
-                * initialScale);
-        final int paddingOffsetY = (int) ((mFolder.getPaddingTop() + mContent.getPaddingTop())
-                * initialScale);
+        final int paddingOffsetX = (int) (mContent.getPaddingLeft() * initialScale);
+        final int paddingOffsetY = (int) (mContent.getPaddingTop() * initialScale);
 
-        int initialX = folderIconPos.left + mPreviewBackground.getOffsetX() - paddingOffsetX
-                - previewItemOffsetX;
-        int initialY = folderIconPos.top + mPreviewBackground.getOffsetY() - paddingOffsetY;
+        int initialX = folderIconPos.left + mFolder.getPaddingLeft()
+                + mPreviewBackground.getOffsetX() - paddingOffsetX - previewItemOffsetX;
+        int initialY = folderIconPos.top + mFolder.getPaddingTop()
+                + mPreviewBackground.getOffsetY() - paddingOffsetY;
         final float xDistance = initialX - lp.x;
         final float yDistance = initialY - lp.y;
 
@@ -163,11 +173,10 @@
 
         // Set up the reveal animation that clips the Folder.
         int totalOffsetX = paddingOffsetX + previewItemOffsetX;
-        Rect startRect = new Rect(
-                Math.round(totalOffsetX / initialScale),
-                Math.round(paddingOffsetY / initialScale),
-                Math.round((totalOffsetX + initialSize) / initialScale),
-                Math.round((paddingOffsetY + initialSize) / initialScale));
+        Rect startRect = new Rect(totalOffsetX,
+                paddingOffsetY,
+                Math.round((totalOffsetX + initialSize)),
+                Math.round((paddingOffsetY + initialSize)));
         Rect endRect = new Rect(0, 0, lp.width, lp.height);
         float finalRadius = ResourceUtils.pxFromDp(2, mContext.getResources().getDisplayMetrics());
 
@@ -188,17 +197,46 @@
 
         play(a, getAnimator(mFolder, View.TRANSLATION_X, xDistance, 0f));
         play(a, getAnimator(mFolder, View.TRANSLATION_Y, yDistance, 0f));
-        play(a, getAnimator(mFolder, SCALE_PROPERTY, initialScale, finalScale));
+        play(a, getAnimator(mFolder.mContent, SCALE_PROPERTY, initialScale, finalScale));
+        play(a, getAnimator(mFolder.mFooter, SCALE_PROPERTY, initialScale, finalScale));
         play(a, getAnimator(mFolderBackground, "color", initialColor, finalColor));
         play(a, mFolderIcon.mFolderName.createTextAlphaAnimator(!mIsOpening));
         play(a, getShape().createRevealAnimator(
                 mFolder, startRect, endRect, finalRadius, !mIsOpening));
+        // Fade in the folder name, as the text can overlap the icons when grid size is small.
+        mFolder.mFolderName.setAlpha(mIsOpening ? 0f : 1f);
+        play(a, getAnimator(mFolder.mFolderName, View.ALPHA, 0, 1),
+                mIsOpening ? FOLDER_NAME_ALPHA_DURATION : 0,
+                mIsOpening ? mDuration - FOLDER_NAME_ALPHA_DURATION : FOLDER_NAME_ALPHA_DURATION);
+
+        // Translate the footer so that it tracks the bottom of the content.
+        float normalHeight = mFolder.getContentAreaHeight();
+        float scaledHeight = normalHeight * initialScale;
+        float diff = normalHeight - scaledHeight;
+        play(a, getAnimator(mFolder.mFooter, View.TRANSLATION_Y, -diff, 0f));
 
         // Animate the elevation midway so that the shadow is not noticeable in the background.
         int midDuration = mDuration / 2;
         Animator z = getAnimator(mFolder, View.TRANSLATION_Z, -mFolder.getElevation(), 0);
         play(a, z, mIsOpening ? midDuration : 0, midDuration);
 
+
+        // Store clip variables
+        CellLayout cellLayout = mContent.getCurrentCellLayout();
+        boolean folderClipChildren = mFolder.getClipChildren();
+        boolean folderClipToPadding = mFolder.getClipToPadding();
+        boolean contentClipChildren = mContent.getClipChildren();
+        boolean contentClipToPadding = mContent.getClipToPadding();
+        boolean cellLayoutClipChildren = cellLayout.getClipChildren();
+        boolean cellLayoutClipPadding = cellLayout.getClipToPadding();
+
+        mFolder.setClipChildren(false);
+        mFolder.setClipToPadding(false);
+        mContent.setClipChildren(false);
+        mContent.setClipToPadding(false);
+        cellLayout.setClipChildren(false);
+        cellLayout.setClipToPadding(false);
+
         a.addListener(new AnimatorListenerAdapter() {
             @Override
             public void onAnimationEnd(Animator animation) {
@@ -206,8 +244,20 @@
                 mFolder.setTranslationX(0.0f);
                 mFolder.setTranslationY(0.0f);
                 mFolder.setTranslationZ(0.0f);
-                mFolder.setScaleX(1f);
-                mFolder.setScaleY(1f);
+                mFolder.mContent.setScaleX(1f);
+                mFolder.mContent.setScaleY(1f);
+                mFolder.mFooter.setScaleX(1f);
+                mFolder.mFooter.setScaleY(1f);
+                mFolder.mFooter.setTranslationX(0f);
+                mFolder.mFolderName.setAlpha(1f);
+
+                mFolder.setClipChildren(folderClipChildren);
+                mFolder.setClipToPadding(folderClipToPadding);
+                mContent.setClipChildren(contentClipChildren);
+                mContent.setClipToPadding(contentClipToPadding);
+                cellLayout.setClipChildren(cellLayoutClipChildren);
+                cellLayout.setClipToPadding(cellLayoutClipPadding);
+
             }
         });
 
@@ -226,15 +276,22 @@
     }
 
     /**
+     * Returns the list of "preview items" on {@param page}.
+     */
+    private List<BubbleTextView> getPreviewIconsOnPage(int page) {
+        return mPreviewVerifier.setFolderInfo(mFolder.mInfo)
+                .previewItemsForPage(page, mFolder.getIconsInReadingOrder());
+    }
+
+    /**
      * Animate the items on the current page.
      */
     private void addPreviewItemAnimators(AnimatorSet animatorSet, final float folderScale,
             int previewItemOffsetX, int previewItemOffsetY) {
         ClippedFolderIconLayoutRule rule = mFolderIcon.getLayoutRule();
         boolean isOnFirstPage = mFolder.mContent.getCurrentPage() == 0;
-        final List<BubbleTextView> itemsInPreview = isOnFirstPage
-                ? mFolderIcon.getPreviewItems()
-                : mFolderIcon.getPreviewItemsOnPage(mFolder.mContent.getCurrentPage());
+        final List<BubbleTextView> itemsInPreview = getPreviewIconsOnPage(
+                isOnFirstPage ? 0 : mFolder.mContent.getCurrentPage());
         final int numItemsInPreview = itemsInPreview.size();
         final int numItemsInFirstPagePreview = isOnFirstPage
                 ? numItemsInPreview : MAX_NUM_ITEMS_IN_PREVIEW;
diff --git a/src/com/android/launcher3/folder/FolderGridOrganizer.java b/src/com/android/launcher3/folder/FolderGridOrganizer.java
new file mode 100644
index 0000000..9d14a5f
--- /dev/null
+++ b/src/com/android/launcher3/folder/FolderGridOrganizer.java
@@ -0,0 +1,196 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3.folder;
+
+import static com.android.launcher3.folder.ClippedFolderIconLayoutRule.MAX_NUM_ITEMS_IN_PREVIEW;
+
+import android.graphics.Point;
+
+import com.android.launcher3.FolderInfo;
+import com.android.launcher3.InvariantDeviceProfile;
+import com.android.launcher3.ItemInfo;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Utility class for managing item positions in a folder based on rank
+ */
+public class FolderGridOrganizer {
+
+    private final Point mPoint = new Point();
+    private final int mMaxCountX;
+    private final int mMaxCountY;
+    private final int mMaxItemsPerPage;
+
+    private int mNumItemsInFolder;
+    private int mCountX;
+    private int mCountY;
+    private boolean mDisplayingUpperLeftQuadrant = false;
+
+    /**
+     * Note: must call {@link #setFolderInfo(FolderInfo)} manually for verifier to work.
+     */
+    public FolderGridOrganizer(InvariantDeviceProfile profile) {
+        mMaxCountX = profile.numFolderColumns;
+        mMaxCountY = profile.numFolderRows;
+        mMaxItemsPerPage = mMaxCountX * mMaxCountY;
+    }
+
+    /**
+     * Updates the organizer with the provided folder info
+     */
+    public FolderGridOrganizer setFolderInfo(FolderInfo info) {
+        return setContentSize(info.contents.size());
+    }
+
+    /**
+     * Updates the organizer to reflect the content size
+     */
+    public FolderGridOrganizer setContentSize(int contentSize) {
+        if (contentSize != mNumItemsInFolder) {
+            calculateGridSize(contentSize);
+
+            mDisplayingUpperLeftQuadrant = contentSize > MAX_NUM_ITEMS_IN_PREVIEW;
+            mNumItemsInFolder = contentSize;
+        }
+        return this;
+    }
+
+    public int getCountX() {
+        return mCountX;
+    }
+
+    public int getCountY() {
+        return mCountY;
+    }
+
+    public int getMaxItemsPerPage() {
+        return mMaxItemsPerPage;
+    }
+
+    /**
+     * Calculates the grid size such that {@param count} items can fit in the grid.
+     * The grid size is calculated such that countY <= countX and countX = ceil(sqrt(count)) while
+     * maintaining the restrictions of {@link #mMaxCountX} &amp; {@link #mMaxCountY}.
+     */
+    private void calculateGridSize(int count) {
+        boolean done;
+        int gridCountX = mCountX;
+        int gridCountY = mCountY;
+
+        if (count >= mMaxItemsPerPage) {
+            gridCountX = mMaxCountX;
+            gridCountY = mMaxCountY;
+            done = true;
+        } else {
+            done = false;
+        }
+
+        while (!done) {
+            int oldCountX = gridCountX;
+            int oldCountY = gridCountY;
+            if (gridCountX * gridCountY < count) {
+                // Current grid is too small, expand it
+                if ((gridCountX <= gridCountY || gridCountY == mMaxCountY)
+                        && gridCountX < mMaxCountX) {
+                    gridCountX++;
+                } else if (gridCountY < mMaxCountY) {
+                    gridCountY++;
+                }
+                if (gridCountY == 0) gridCountY++;
+            } else if ((gridCountY - 1) * gridCountX >= count && gridCountY >= gridCountX) {
+                gridCountY = Math.max(0, gridCountY - 1);
+            } else if ((gridCountX - 1) * gridCountY >= count) {
+                gridCountX = Math.max(0, gridCountX - 1);
+            }
+            done = gridCountX == oldCountX && gridCountY == oldCountY;
+        }
+
+        mCountX = gridCountX;
+        mCountY = gridCountY;
+    }
+
+    /**
+     * Updates the item's cellX, cellY and rank corresponding to the provided rank.
+     * @return true if there was any change
+     */
+    public boolean updateRankAndPos(ItemInfo item, int rank) {
+        Point pos = getPosForRank(rank);
+        if (!pos.equals(item.cellX, item.cellY) || rank != item.rank) {
+            item.rank = rank;
+            item.cellX = pos.x;
+            item.cellY = pos.y;
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Returns the position of the item in the grid
+     */
+    public Point getPosForRank(int rank) {
+        int pagePos = rank % mMaxItemsPerPage;
+        mPoint.x = pagePos % mCountX;
+        mPoint.y = pagePos / mCountX;
+        return mPoint;
+    }
+
+    /**
+     * Returns the preview items for the provided pageNo using the full list of contents
+     */
+    public <T, R extends T> ArrayList<R> previewItemsForPage(int page, List<T> contents) {
+        ArrayList<R> result = new ArrayList<>();
+        int itemsPerPage = mCountX * mCountY;
+        int start = itemsPerPage * page;
+        int end = Math.min(start + itemsPerPage, contents.size());
+
+        for (int i = start, rank = 0; i < end; i++, rank++) {
+            if (isItemInPreview(page, rank)) {
+                result.add((R) contents.get(i));
+            }
+
+            if (result.size() == MAX_NUM_ITEMS_IN_PREVIEW) {
+                break;
+            }
+        }
+        return result;
+    }
+
+    /**
+     * Returns whether the item with rank is in the default Folder icon preview.
+     */
+    public boolean isItemInPreview(int rank) {
+        return isItemInPreview(0, rank);
+    }
+
+    /**
+     * @param page The page the item is on.
+     * @param rank The rank of the item.
+     * @return True iff the icon is in the 2x2 upper left quadrant of the Folder.
+     */
+    public boolean isItemInPreview(int page, int rank) {
+        // First page items are laid out such that the first 4 items are always in the upper
+        // left quadrant. For all other pages, we need to check the row and col.
+        if (page > 0 || mDisplayingUpperLeftQuadrant) {
+            int col = rank % mCountX;
+            int row = rank / mCountX;
+            return col < 2 && row < 2;
+        }
+        return rank < MAX_NUM_ITEMS_IN_PREVIEW;
+    }
+}
diff --git a/src/com/android/launcher3/folder/FolderIcon.java b/src/com/android/launcher3/folder/FolderIcon.java
index 0e2d467..fd6d1e3 100644
--- a/src/com/android/launcher3/folder/FolderIcon.java
+++ b/src/com/android/launcher3/folder/FolderIcon.java
@@ -58,18 +58,21 @@
 import com.android.launcher3.Workspace;
 import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.anim.Interpolators;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.dot.FolderDotInfo;
 import com.android.launcher3.dragndrop.BaseItemDragListener;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.dragndrop.DragView;
 import com.android.launcher3.icons.DotRenderer;
 import com.android.launcher3.touch.ItemClickHandler;
+import com.android.launcher3.util.Executors;
 import com.android.launcher3.util.Thunk;
 import com.android.launcher3.views.IconLabelDotView;
 import com.android.launcher3.widget.PendingAddShortcutInfo;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.function.Predicate;
 
 /**
  * An icon that can appear on in the workspace representing an {@link Folder}.
@@ -96,11 +99,11 @@
     PreviewBackground mBackground = new PreviewBackground();
     private boolean mBackgroundIsVisible = true;
 
-    FolderIconPreviewVerifier mPreviewVerifier;
+    FolderGridOrganizer mPreviewVerifier;
     ClippedFolderIconLayoutRule mPreviewLayoutRule;
     private PreviewItemManager mPreviewItemManager;
     private PreviewItemDrawingParams mTmpParams = new PreviewItemDrawingParams(0, 0, 0, 0);
-    private List<BubbleTextView> mCurrentPreviewItems = new ArrayList<>();
+    private List<WorkspaceItemInfo> mCurrentPreviewItems = new ArrayList<>();
 
     boolean mAnimating = false;
 
@@ -175,7 +178,7 @@
         icon.setOnClickListener(ItemClickHandler.INSTANCE);
         icon.mInfo = folderInfo;
         icon.mLauncher = launcher;
-        icon.mDotRenderer = grid.mDotRenderer;
+        icon.mDotRenderer = grid.mDotRendererWorkSpace;
         icon.setContentDescription(launcher.getString(R.string.folder_name_format, folderInfo.title));
         Folder folder = Folder.fromXml(launcher);
         folder.setDragController(launcher.getDragController());
@@ -214,7 +217,7 @@
 
     private void setFolder(Folder folder) {
         mFolder = folder;
-        mPreviewVerifier = new FolderIconPreviewVerifier(mLauncher.getDeviceProfile().inv);
+        mPreviewVerifier = new FolderGridOrganizer(mLauncher.getDeviceProfile().inv);
         mPreviewVerifier.setFolderInfo(mFolder.getInfo());
         updatePreviewItems(false);
     }
@@ -232,11 +235,7 @@
     }
 
     public void addItem(WorkspaceItemInfo item) {
-        addItem(item, true);
-    }
-
-    public void addItem(WorkspaceItemInfo item, boolean animate) {
-        mInfo.add(item, animate);
+        mInfo.add(item, true);
     }
 
     public void removeItem(WorkspaceItemInfo item, boolean animate) {
@@ -261,7 +260,6 @@
     OnAlarmListener mOnOpenListener = new OnAlarmListener() {
         public void onAlarm(Alarm alarm) {
             mFolder.beginExternalDrag();
-            mFolder.animateOpen();
         }
     };
 
@@ -296,8 +294,7 @@
     }
 
     private void onDrop(final WorkspaceItemInfo item, DragView animateView, Rect finalRect,
-            float scaleRelativeToDragLayer, int index,
-            boolean itemReturnedOnFailedDrop) {
+            float scaleRelativeToDragLayer, int index, boolean itemReturnedOnFailedDrop) {
         item.cellX = -1;
         item.cellY = -1;
 
@@ -328,18 +325,17 @@
             int numItemsInPreview = Math.min(MAX_NUM_ITEMS_IN_PREVIEW, index + 1);
             boolean itemAdded = false;
             if (itemReturnedOnFailedDrop || index >= MAX_NUM_ITEMS_IN_PREVIEW) {
-                List<BubbleTextView> oldPreviewItems = new ArrayList<>(mCurrentPreviewItems);
-                addItem(item, false);
+                List<WorkspaceItemInfo> oldPreviewItems = new ArrayList<>(mCurrentPreviewItems);
+                mInfo.add(item, index, false);
                 mCurrentPreviewItems.clear();
-                mCurrentPreviewItems.addAll(getPreviewItems());
+                mCurrentPreviewItems.addAll(getPreviewItemsOnPage(0));
 
                 if (!oldPreviewItems.equals(mCurrentPreviewItems)) {
-                    for (int i = 0; i < mCurrentPreviewItems.size(); ++i) {
-                        if (mCurrentPreviewItems.get(i).getTag().equals(item)) {
-                            // If the item dropped is going to be in the preview, we update the
-                            // index here to reflect its position in the preview.
-                            index = i;
-                        }
+                    int newIndex = mCurrentPreviewItems.indexOf(item);
+                    if (newIndex >= 0) {
+                        // If the item dropped is going to be in the preview, we update the
+                        // index here to reflect its position in the preview.
+                        index = newIndex;
                     }
 
                     mPreviewItemManager.hidePreviewItem(index, true);
@@ -351,13 +347,13 @@
             }
 
             if (!itemAdded) {
-                addItem(item);
+                mInfo.add(item, index, true);
             }
 
             int[] center = new int[2];
             float scale = getLocalCenterForIndex(index, numItemsInPreview, center);
-            center[0] = (int) Math.round(scaleRelativeToDragLayer * center[0]);
-            center[1] = (int) Math.round(scaleRelativeToDragLayer * center[1]);
+            center[0] = Math.round(scaleRelativeToDragLayer * center[0]);
+            center[1] = Math.round(scaleRelativeToDragLayer * center[1]);
 
             to.offset(center[0] - animateView.getMeasuredWidth() / 2,
                     center[1] - animateView.getMeasuredHeight() / 2);
@@ -374,12 +370,17 @@
 
             if (!itemAdded) mPreviewItemManager.hidePreviewItem(index, true);
             final int finalIndex = index;
-            postDelayed(new Runnable() {
-                public void run() {
-                    mPreviewItemManager.hidePreviewItem(finalIndex, false);
-                    mFolder.showItem(item);
-                    invalidate();
-                }
+
+            String[] suggestedNameOut = new String[1];
+            if (FeatureFlags.FOLDER_NAME_SUGGEST.get()) {
+                Executors.UI_HELPER_EXECUTOR.post(() -> mLauncher.getFolderNameProvider()
+                        .getSuggestedFolderName(getContext(), mInfo.contents, suggestedNameOut));
+            }
+            postDelayed(() -> {
+                mPreviewItemManager.hidePreviewItem(finalIndex, false);
+                mFolder.showItem(item);
+                invalidate();
+                mFolder.showSuggestedTitle(suggestedNameOut[0]);
             }, DROP_IN_ANIMATION_DURATION);
         } else {
             addItem(item);
@@ -398,7 +399,8 @@
             item = (WorkspaceItemInfo) d.dragInfo;
         }
         mFolder.notifyDrop();
-        onDrop(item, d.dragView, null, 1.0f, mInfo.contents.size(),
+        onDrop(item, d.dragView, null, 1.0f,
+                itemReturnedOnFailedDrop ? item.rank : mInfo.contents.size(),
                 itemReturnedOnFailedDrop);
     }
 
@@ -510,8 +512,7 @@
             mBackground.drawBackground(canvas);
         }
 
-        if (mFolder == null) return;
-        if (mFolder.getItemCount() == 0 && !mAnimating) return;
+        if (mCurrentPreviewItems.isEmpty() && !mAnimating) return;
 
         final int saveCount = canvas.save();
         canvas.clipPath(mBackground.getClipPath());
@@ -553,31 +554,10 @@
     }
 
     /**
-     * Returns the list of preview items displayed in the icon.
+     * Returns the list of items which should be visible in the preview
      */
-    public List<BubbleTextView> getPreviewItems() {
-        return getPreviewItemsOnPage(0);
-    }
-
-    /**
-     * Returns the list of "preview items" on {@param page}.
-     */
-    public List<BubbleTextView> getPreviewItemsOnPage(int page) {
-        mPreviewVerifier.setFolderInfo(mFolder.getInfo());
-
-        List<BubbleTextView> itemsToDisplay = new ArrayList<>();
-        List<BubbleTextView> itemsOnPage = mFolder.getItemsOnPage(page);
-        int numItems = itemsOnPage.size();
-        for (int rank = 0; rank < numItems; ++rank) {
-            if (mPreviewVerifier.isItemInPreview(page, rank)) {
-                itemsToDisplay.add(itemsOnPage.get(rank));
-            }
-
-            if (itemsToDisplay.size() == MAX_NUM_ITEMS_IN_PREVIEW) {
-                break;
-            }
-        }
-        return itemsToDisplay;
+    public List<WorkspaceItemInfo> getPreviewItemsOnPage(int page) {
+        return mPreviewVerifier.setFolderInfo(mInfo).previewItemsForPage(page, mInfo.contents);
     }
 
     @Override
@@ -595,11 +575,14 @@
     private void updatePreviewItems(boolean animate) {
         mPreviewItemManager.updatePreviewItems(animate);
         mCurrentPreviewItems.clear();
-        mCurrentPreviewItems.addAll(getPreviewItems());
+        mCurrentPreviewItems.addAll(getPreviewItemsOnPage(0));
     }
 
-    @Override
-    public void prepareAutoUpdate() {
+    /**
+     * Updates the preview items which match the provided condition
+     */
+    public void updatePreviewItems(Predicate<WorkspaceItemInfo> itemCheck) {
+        mPreviewItemManager.updatePreviewItems(itemCheck);
     }
 
     @Override
@@ -622,7 +605,6 @@
         requestLayout();
     }
 
-    @Override
     public void onTitleChanged(CharSequence title) {
         mFolderName.setText(title);
         setContentDescription(getContext().getString(R.string.folder_name_format, title));
diff --git a/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java b/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java
deleted file mode 100644
index 4c84e35..0000000
--- a/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.launcher3.folder;
-
-import android.util.Log;
-
-import com.android.launcher3.FolderInfo;
-import com.android.launcher3.InvariantDeviceProfile;
-
-import static com.android.launcher3.folder.ClippedFolderIconLayoutRule.MAX_NUM_ITEMS_IN_PREVIEW;
-
-/**
- * Verifies whether an item in a Folder is displayed in the FolderIcon preview.
- */
-public class FolderIconPreviewVerifier {
-
-    private static final String TAG = "FolderPreviewVerifier";
-
-    private final int mMaxGridCountX;
-    private final int mMaxGridCountY;
-    private final int mMaxItemsPerPage;
-    private final int[] mGridSize = new int[] { 1, 1 };
-
-    private int mNumItemsInFolder;
-    private int mGridCountX;
-    private boolean mDisplayingUpperLeftQuadrant = false;
-
-    /**
-     * Note: must call {@link #setFolderInfo(FolderInfo)} manually for verifier to work.
-     */
-    public FolderIconPreviewVerifier(InvariantDeviceProfile profile) {
-        mMaxGridCountX = profile.numFolderColumns;
-        mMaxGridCountY = profile.numFolderRows;
-        mMaxItemsPerPage = mMaxGridCountX * mMaxGridCountY;
-    }
-
-    public void setFolderInfo(FolderInfo info) {
-        int numItemsInFolder = info.contents.size();
-        if (numItemsInFolder != mNumItemsInFolder) {
-            FolderPagedView.calculateGridSize(numItemsInFolder, 0, 0, mMaxGridCountX,
-                    mMaxGridCountY, mMaxItemsPerPage, mGridSize);
-            mGridCountX = mGridSize[0];
-
-            mDisplayingUpperLeftQuadrant = numItemsInFolder > MAX_NUM_ITEMS_IN_PREVIEW;
-            mNumItemsInFolder = numItemsInFolder;
-        }
-    }
-
-    /**
-     * Returns whether the item with {@param rank} is in the default Folder icon preview.
-     */
-    public boolean isItemInPreview(int rank) {
-        return isItemInPreview(0, rank);
-    }
-
-    /**
-     * @param page The page the item is on.
-     * @param rank The rank of the item.
-     * @return True iff the icon is in the 2x2 upper left quadrant of the Folder.
-     */
-    public boolean isItemInPreview(int page, int rank) {
-        if (mGridSize[0] == 1) {
-            Log.w(TAG, "setFolderInfo not called before checking if item is in preview.");
-        }
-
-        // First page items are laid out such that the first 4 items are always in the upper
-        // left quadrant. For all other pages, we need to check the row and col.
-        if (page > 0 || mDisplayingUpperLeftQuadrant) {
-            int col = rank % mGridCountX;
-            int row = rank / mGridCountX;
-            return col < 2 && row < 2;
-        }
-        return rank < MAX_NUM_ITEMS_IN_PREVIEW;
-    }
-}
diff --git a/src/com/android/launcher3/folder/FolderNameProvider.java b/src/com/android/launcher3/folder/FolderNameProvider.java
new file mode 100644
index 0000000..0a1221e
--- /dev/null
+++ b/src/com/android/launcher3/folder/FolderNameProvider.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.folder;
+
+import android.content.ComponentName;
+import android.content.Context;
+
+import com.android.launcher3.LauncherSettings.Favorites;
+import com.android.launcher3.WorkspaceItemInfo;
+
+import java.util.ArrayList;
+
+/**
+ * Locates provider for the folder name.
+ */
+public class FolderNameProvider {
+
+    /**
+     * Returns suggested folder name.
+     */
+    public CharSequence getSuggestedFolderName(Context context,
+            ArrayList<WorkspaceItemInfo> workspaceItemInfos, CharSequence[] suggestName) {
+        // Currently only run the algorithm on initial folder creation.
+        // For more than 2 items in the folder, the ranking algorithm for finding
+        // candidate folder name should be rewritten.
+        if (workspaceItemInfos.size() == 2) {
+            ComponentName cmp1 = workspaceItemInfos.get(0).getTargetComponent();
+            ComponentName cmp2 = workspaceItemInfos.get(1).getTargetComponent();
+
+            String pkgName0 = cmp1 == null ? "" : cmp1.getPackageName();
+            String pkgName1 = cmp2 == null ? "" : cmp2.getPackageName();
+            // If the two icons are from the same package,
+            // then assign the main icon's name
+            if (pkgName0.equals(pkgName1)) {
+                WorkspaceItemInfo wInfo0 = workspaceItemInfos.get(0);
+                WorkspaceItemInfo wInfo1 = workspaceItemInfos.get(1);
+                if (workspaceItemInfos.get(0).itemType == Favorites.ITEM_TYPE_APPLICATION) {
+                    suggestName[0] = wInfo0.title;
+                } else if (wInfo1.itemType == Favorites.ITEM_TYPE_APPLICATION) {
+                    suggestName[0] = wInfo1.title;
+                }
+                return suggestName[0];
+                // two icons are all shortcuts. Don't assign title
+            }
+        }
+        return suggestName[0];
+    }
+}
diff --git a/src/com/android/launcher3/folder/FolderPagedView.java b/src/com/android/launcher3/folder/FolderPagedView.java
index 57105e7..3b5fd59 100644
--- a/src/com/android/launcher3/folder/FolderPagedView.java
+++ b/src/com/android/launcher3/folder/FolderPagedView.java
@@ -24,10 +24,10 @@
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.Gravity;
-import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewDebug;
 
+import com.android.launcher3.BaseActivity;
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.CellLayout;
 import com.android.launcher3.DeviceProfile;
@@ -38,18 +38,22 @@
 import com.android.launcher3.PagedView;
 import com.android.launcher3.R;
 import com.android.launcher3.ShortcutAndWidgetContainer;
-import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.Workspace.ItemOperator;
+import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.keyboard.ViewGroupFocusHelper;
 import com.android.launcher3.pageindicators.PageIndicatorDots;
 import com.android.launcher3.touch.ItemClickHandler;
 import com.android.launcher3.util.Thunk;
+import com.android.launcher3.util.ViewCache;
 
 import java.util.ArrayList;
 import java.util.Iterator;
+import java.util.List;
 import java.util.Map;
+import java.util.function.ToIntFunction;
+import java.util.stream.Collectors;
 
 public class FolderPagedView extends PagedView<PageIndicatorDots> {
 
@@ -68,17 +72,12 @@
 
     public final boolean mIsRtl;
 
-    private final LayoutInflater mInflater;
     private final ViewGroupFocusHelper mFocusIndicatorHelper;
 
     @Thunk final ArrayMap<View, Runnable> mPendingAnimations = new ArrayMap<>();
 
-    @ViewDebug.ExportedProperty(category = "launcher")
-    private final int mMaxCountX;
-    @ViewDebug.ExportedProperty(category = "launcher")
-    private final int mMaxCountY;
-    @ViewDebug.ExportedProperty(category = "launcher")
-    private final int mMaxItemsPerPage;
+    private final FolderGridOrganizer mOrganizer;
+    private final ViewCache mViewCache;
 
     private int mAllocatedContentSize;
     @ViewDebug.ExportedProperty(category = "launcher")
@@ -88,20 +87,20 @@
 
     private Folder mFolder;
 
+    // If the views are attached to the folder or not. A folder should be bound when its
+    // animating or is open.
+    private boolean mViewsBound = false;
+
     public FolderPagedView(Context context, AttributeSet attrs) {
         super(context, attrs);
         InvariantDeviceProfile profile = LauncherAppState.getIDP(context);
-        mMaxCountX = profile.numFolderColumns;
-        mMaxCountY = profile.numFolderRows;
-
-        mMaxItemsPerPage = mMaxCountX * mMaxCountY;
-
-        mInflater = LayoutInflater.from(context);
+        mOrganizer = new FolderGridOrganizer(profile);
 
         mIsRtl = Utilities.isRtl(getResources());
         setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES);
 
         mFocusIndicatorHelper = new ViewGroupFocusHelper(this);
+        mViewCache = BaseActivity.fromContext(context).getViewCache();
     }
 
     public void setFolder(Folder folder) {
@@ -111,57 +110,13 @@
     }
 
     /**
-     * Calculates the grid size such that {@param count} items can fit in the grid.
-     * The grid size is calculated such that countY <= countX and countX = ceil(sqrt(count)) while
-     * maintaining the restrictions of {@link #mMaxCountX} &amp; {@link #mMaxCountY}.
-     */
-    public static void calculateGridSize(int count, int countX, int countY, int maxCountX,
-            int maxCountY, int maxItemsPerPage, int[] out) {
-        boolean done;
-        int gridCountX = countX;
-        int gridCountY = countY;
-
-        if (count >= maxItemsPerPage) {
-            gridCountX = maxCountX;
-            gridCountY = maxCountY;
-            done = true;
-        } else {
-            done = false;
-        }
-
-        while (!done) {
-            int oldCountX = gridCountX;
-            int oldCountY = gridCountY;
-            if (gridCountX * gridCountY < count) {
-                // Current grid is too small, expand it
-                if ((gridCountX <= gridCountY || gridCountY == maxCountY)
-                        && gridCountX < maxCountX) {
-                    gridCountX++;
-                } else if (gridCountY < maxCountY) {
-                    gridCountY++;
-                }
-                if (gridCountY == 0) gridCountY++;
-            } else if ((gridCountY - 1) * gridCountX >= count && gridCountY >= gridCountX) {
-                gridCountY = Math.max(0, gridCountY - 1);
-            } else if ((gridCountX - 1) * gridCountY >= count) {
-                gridCountX = Math.max(0, gridCountX - 1);
-            }
-            done = gridCountX == oldCountX && gridCountY == oldCountY;
-        }
-
-        out[0] = gridCountX;
-        out[1] = gridCountY;
-    }
-
-    /**
      * Sets up the grid size such that {@param count} items can fit in the grid.
      */
-    public void setupContentDimensions(int count) {
+    private void setupContentDimensions(int count) {
         mAllocatedContentSize = count;
-        calculateGridSize(count, mGridCountX, mGridCountY, mMaxCountX, mMaxCountY, mMaxItemsPerPage,
-                sTmpArray);
-        mGridCountX = sTmpArray[0];
-        mGridCountY = sTmpArray[1];
+        mOrganizer.setContentSize(count);
+        mGridCountX = mOrganizer.getCountX();
+        mGridCountY = mOrganizer.getCountY();
 
         // Update grid size
         for (int i = getPageCount() - 1; i >= 0; i--) {
@@ -178,35 +133,50 @@
     /**
      * Binds items to the layout.
      */
-    public void bindItems(ArrayList<WorkspaceItemInfo> items) {
-        ArrayList<View> icons = new ArrayList<>();
-        for (WorkspaceItemInfo item : items) {
-            icons.add(createNewView(item));
+    public void bindItems(List<WorkspaceItemInfo> items) {
+        if (mViewsBound) {
+            unbindItems();
         }
-        arrangeChildren(icons, icons.size(), false);
-    }
-
-    public void allocateSpaceForRank(int rank) {
-        ArrayList<View> views = new ArrayList<>(mFolder.getItemsInReadingOrder());
-        views.add(rank, null);
-        arrangeChildren(views, views.size(), false);
+        arrangeChildren(items.stream().map(this::createNewView).collect(Collectors.toList()));
+        mViewsBound = true;
     }
 
     /**
-     * Create space for a new item at the end, and returns the rank for that item.
-     * Also sets the current page to the last page.
+     * Removes all the icons from the folder
      */
-    public int allocateRankForNewItem() {
-        int rank = getItemCount();
-        allocateSpaceForRank(rank);
-        setCurrentPage(rank / mMaxItemsPerPage);
-        return rank;
+    public void unbindItems() {
+        for (int i = getChildCount() - 1; i >= 0; i--) {
+            CellLayout page = (CellLayout) getChildAt(i);
+            ShortcutAndWidgetContainer container = page.getShortcutsAndWidgets();
+            for (int j = container.getChildCount() - 1; j >= 0; j--) {
+                mViewCache.recycleView(R.layout.folder_application, container.getChildAt(j));
+            }
+            page.removeAllViews();
+            mViewCache.recycleView(R.layout.folder_page, page);
+        }
+        removeAllViews();
+        mViewsBound = false;
     }
 
+    /**
+     * Returns true if the icons are bound to the folder
+     */
+    public boolean areViewsBound() {
+        return mViewsBound;
+    }
+
+    /**
+     * Creates and adds an icon corresponding to the provided rank
+     * @return the created icon
+     */
     public View createAndAddViewForRank(WorkspaceItemInfo item, int rank) {
         View icon = createNewView(item);
-        allocateSpaceForRank(rank);
-        addViewForRank(icon, item, rank);
+        if (!mViewsBound) {
+            return icon;
+        }
+        ArrayList<View> views = new ArrayList<>(mFolder.getIconsInReadingOrder());
+        views.add(rank, icon);
+        arrangeChildren(views);
         return icon;
     }
 
@@ -215,31 +185,33 @@
      * related attributes. It assumes that {@param item} is already attached to the view.
      */
     public void addViewForRank(View view, WorkspaceItemInfo item, int rank) {
-        int pagePos = rank % mMaxItemsPerPage;
-        int pageNo = rank / mMaxItemsPerPage;
-
-        item.rank = rank;
-        item.cellX = pagePos % mGridCountX;
-        item.cellY = pagePos / mGridCountX;
+        int pageNo = rank / mOrganizer.getMaxItemsPerPage();
 
         CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
-        lp.cellX = item.cellX;
-        lp.cellY = item.cellY;
+        lp.setXY(mOrganizer.getPosForRank(rank));
         getPageAt(pageNo).addViewToCellLayout(view, -1, item.getViewId(), lp, true);
     }
 
     @SuppressLint("InflateParams")
     public View createNewView(WorkspaceItemInfo item) {
-        final BubbleTextView textView = (BubbleTextView) mInflater.inflate(
-                R.layout.folder_application, null, false);
+        if (item == null) {
+            return null;
+        }
+        final BubbleTextView textView = mViewCache.getView(
+                R.layout.folder_application, getContext(), null);
         textView.applyFromWorkspaceItem(item);
-        textView.setHapticFeedbackEnabled(false);
         textView.setOnClickListener(ItemClickHandler.INSTANCE);
         textView.setOnLongClickListener(mFolder);
         textView.setOnFocusChangeListener(mFocusIndicatorHelper);
-
-        textView.setLayoutParams(new CellLayout.LayoutParams(
-                item.cellX, item.cellY, item.spanX, item.spanY));
+        CellLayout.LayoutParams lp = (CellLayout.LayoutParams) textView.getLayoutParams();
+        if (lp == null) {
+            textView.setLayoutParams(new CellLayout.LayoutParams(
+                    item.cellX, item.cellY, item.spanX, item.spanY));
+        } else {
+            lp.cellX = item.cellX;
+            lp.cellY = item.cellY;
+            lp.cellHSpan = lp.cellVSpan = 1;
+        }
         return textView;
     }
 
@@ -254,7 +226,7 @@
 
     private CellLayout createAndAddNewPage() {
         DeviceProfile grid = Launcher.getLauncher(getContext()).getDeviceProfile();
-        CellLayout page = (CellLayout) mInflater.inflate(R.layout.folder_page, this, false);
+        CellLayout page = mViewCache.getView(R.layout.folder_page, getContext(), this);
         page.setCellDimensions(grid.folderCellWidthPx, grid.folderCellHeightPx);
         page.getShortcutsAndWidgets().setMotionEventSplittingEnabled(false);
         page.setInvertIfRtl(true);
@@ -295,37 +267,28 @@
      * page.
      *
      * @param list the ordered list of children.
-     * @param itemCount if greater than the total children count, empty spaces are left
-     * at the end, otherwise it is ignored.
-     *
      */
-    public void arrangeChildren(ArrayList<View> list, int itemCount) {
-        arrangeChildren(list, itemCount, true);
-    }
-
     @SuppressLint("RtlHardcoded")
-    private void arrangeChildren(ArrayList<View> list, int itemCount, boolean saveChanges) {
+    public void arrangeChildren(List<View> list) {
+        int itemCount = list.size();
         ArrayList<CellLayout> pages = new ArrayList<>();
         for (int i = 0; i < getChildCount(); i++) {
             CellLayout page = (CellLayout) getChildAt(i);
             page.removeAllViews();
             pages.add(page);
         }
+        mOrganizer.setFolderInfo(mFolder.getInfo());
         setupContentDimensions(itemCount);
 
         Iterator<CellLayout> pageItr = pages.iterator();
         CellLayout currentPage = null;
 
         int position = 0;
-        int newX, newY, rank;
+        int rank = 0;
 
-        FolderIconPreviewVerifier verifier = new FolderIconPreviewVerifier(
-                Launcher.getLauncher(getContext()).getDeviceProfile().inv);
-        verifier.setFolderInfo(mFolder.getInfo());
-        rank = 0;
         for (int i = 0; i < itemCount; i++) {
             View v = list.size() > i ? list.get(i) : null;
-            if (currentPage == null || position >= mMaxItemsPerPage) {
+            if (currentPage == null || position >= mOrganizer.getMaxItemsPerPage()) {
                 // Next page
                 if (pageItr.hasNext()) {
                     currentPage = pageItr.next();
@@ -337,28 +300,16 @@
 
             if (v != null) {
                 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) v.getLayoutParams();
-                newX = position % mGridCountX;
-                newY = position / mGridCountX;
                 ItemInfo info = (ItemInfo) v.getTag();
-                if (info.cellX != newX || info.cellY != newY || info.rank != rank) {
-                    info.cellX = newX;
-                    info.cellY = newY;
-                    info.rank = rank;
-                    if (saveChanges) {
-                        mFolder.mLauncher.getModelWriter().addOrMoveItemInDatabase(info,
-                                mFolder.mInfo.id, 0, info.cellX, info.cellY);
-                    }
-                }
-                lp.cellX = info.cellX;
-                lp.cellY = info.cellY;
+                lp.setXY(mOrganizer.getPosForRank(rank));
                 currentPage.addViewToCellLayout(v, -1, info.getViewId(), lp, true);
 
-                if (verifier.isItemInPreview(rank) && v instanceof BubbleTextView) {
+                if (mOrganizer.isItemInPreview(rank) && v instanceof BubbleTextView) {
                     ((BubbleTextView) v).verifyHighRes();
                 }
             }
 
-            rank ++;
+            rank++;
             position++;
         }
 
@@ -391,16 +342,6 @@
                 (getPageAt(0).getDesiredHeight() + getPaddingTop() + getPaddingBottom()) : 0;
     }
 
-    public int getItemCount() {
-        int lastPageIndex = getChildCount() - 1;
-        if (lastPageIndex < 0) {
-            // If there are no pages, nothing has yet been added to the folder.
-            return 0;
-        }
-        return getPageAt(lastPageIndex).getShortcutsAndWidgets().getChildCount()
-                + lastPageIndex * mMaxItemsPerPage;
-    }
-
     /**
      * @return the rank of the cell nearest to the provided pixel position.
      */
@@ -412,31 +353,28 @@
             sTmpArray[0] = page.getCountX() - sTmpArray[0] - 1;
         }
         return Math.min(mAllocatedContentSize - 1,
-                pageIndex * mMaxItemsPerPage + sTmpArray[1] * mGridCountX + sTmpArray[0]);
+                pageIndex * mOrganizer.getMaxItemsPerPage()
+                        + sTmpArray[1] * mGridCountX + sTmpArray[0]);
     }
 
     public View getFirstItem() {
-        if (getChildCount() < 1) {
-            return null;
-        }
-        ShortcutAndWidgetContainer currContainer = getCurrentCellLayout().getShortcutsAndWidgets();
-        if (mGridCountX > 0) {
-            return currContainer.getChildAt(0, 0);
-        } else {
-            return currContainer.getChildAt(0);
-        }
+        return getViewInCurrentPage(c -> 0);
     }
 
     public View getLastItem() {
+        return getViewInCurrentPage(c -> c.getChildCount() - 1);
+    }
+
+    private View getViewInCurrentPage(ToIntFunction<ShortcutAndWidgetContainer> rankProvider) {
         if (getChildCount() < 1) {
             return null;
         }
-        ShortcutAndWidgetContainer currContainer = getCurrentCellLayout().getShortcutsAndWidgets();
-        int lastRank = currContainer.getChildCount() - 1;
+        ShortcutAndWidgetContainer container = getCurrentCellLayout().getShortcutsAndWidgets();
+        int rank = rankProvider.applyAsInt(container);
         if (mGridCountX > 0) {
-            return currContainer.getChildAt(lastRank % mGridCountX, lastRank / mGridCountX);
+            return container.getChildAt(rank % mGridCountX, rank / mGridCountX);
         } else {
-            return currContainer.getChildAt(lastRank);
+            return container.getChildAt(rank);
         }
     }
 
@@ -517,7 +455,7 @@
     }
 
     public boolean rankOnCurrentPage(int rank) {
-        int p = rank / mMaxItemsPerPage;
+        int p = rank / mOrganizer.getMaxItemsPerPage();
         return p == getNextPage();
     }
 
@@ -563,15 +501,16 @@
 
         // Animation only happens on the current page.
         int pageToAnimate = getNextPage();
+        int maxItemsPerPage = mOrganizer.getMaxItemsPerPage();
 
-        int pageT = target / mMaxItemsPerPage;
-        int pagePosT = target % mMaxItemsPerPage;
+        int pageT = target / maxItemsPerPage;
+        int pagePosT = target % maxItemsPerPage;
 
         if (pageT != pageToAnimate) {
             Log.e(TAG, "Cannot animate when the target cell is invisible");
         }
-        int pagePosE = empty % mMaxItemsPerPage;
-        int pageE = empty / mMaxItemsPerPage;
+        int pagePosE = empty % maxItemsPerPage;
+        int pageE = empty / maxItemsPerPage;
 
         int startPos, endPos;
         int moveStart, moveEnd;
@@ -588,7 +527,7 @@
             if (pageE < pageToAnimate) {
                 moveStart = empty;
                 // Instantly move the first item in the current page.
-                moveEnd = pageToAnimate * mMaxItemsPerPage;
+                moveEnd = pageToAnimate * maxItemsPerPage;
                 // Animate the 2nd item in the current page, as the first item was already moved to
                 // the last page.
                 startPos = 0;
@@ -606,10 +545,10 @@
                 // Move the items immediately.
                 moveStart = empty;
                 // Instantly move the last item in the current page.
-                moveEnd = (pageToAnimate + 1) * mMaxItemsPerPage - 1;
+                moveEnd = (pageToAnimate + 1) * maxItemsPerPage - 1;
 
                 // Animations start with the second last item in the page
-                startPos = mMaxItemsPerPage - 1;
+                startPos = maxItemsPerPage - 1;
             } else {
                 moveStart = moveEnd = -1;
                 startPos = pagePosE;
@@ -621,8 +560,8 @@
         // Instant moving views.
         while (moveStart != moveEnd) {
             int rankToMove = moveStart + direction;
-            int p = rankToMove / mMaxItemsPerPage;
-            int pagePos = rankToMove % mMaxItemsPerPage;
+            int p = rankToMove / maxItemsPerPage;
+            int pagePos = rankToMove % maxItemsPerPage;
             int x = pagePos % mGridCountX;
             int y = pagePos / mGridCountX;
 
@@ -667,9 +606,6 @@
         for (int i = startPos; i != endPos; i += direction) {
             int nextPos = i + direction;
             View v = page.getChildAt(nextPos % mGridCountX, nextPos / mGridCountX);
-            if (v != null) {
-                ((ItemInfo) v.getTag()).rank -= direction;
-            }
             if (page.animateChildToPosition(v, i % mGridCountX, i / mGridCountX,
                     REORDER_ANIMATION_DURATION, delay, true, true)) {
                 delay += delayAmount;
@@ -679,6 +615,6 @@
     }
 
     public int itemsPerPage() {
-        return mMaxItemsPerPage;
+        return mOrganizer.getMaxItemsPerPage();
     }
 }
diff --git a/src/com/android/launcher3/folder/PreviewItemDrawingParams.java b/src/com/android/launcher3/folder/PreviewItemDrawingParams.java
index c818462..caf6e55 100644
--- a/src/com/android/launcher3/folder/PreviewItemDrawingParams.java
+++ b/src/com/android/launcher3/folder/PreviewItemDrawingParams.java
@@ -17,6 +17,8 @@
 
 import android.graphics.drawable.Drawable;
 
+import com.android.launcher3.WorkspaceItemInfo;
+
 /**
  * Manages the parameters used to draw a Folder preview item.
  */
@@ -25,9 +27,10 @@
     float transY;
     float scale;
     float overlayAlpha;
-    FolderPreviewItemAnim anim;
+    public FolderPreviewItemAnim anim;
     public boolean hidden;
-    Drawable drawable;
+    public Drawable drawable;
+    public WorkspaceItemInfo item;
 
     PreviewItemDrawingParams(float transX, float transY, float scale, float overlayAlpha) {
         this.transX = transX;
diff --git a/src/com/android/launcher3/folder/PreviewItemManager.java b/src/com/android/launcher3/folder/PreviewItemManager.java
index 49763ba..2d817e6 100644
--- a/src/com/android/launcher3/folder/PreviewItemManager.java
+++ b/src/com/android/launcher3/folder/PreviewItemManager.java
@@ -23,28 +23,51 @@
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
+import android.animation.ObjectAnimator;
 import android.animation.ValueAnimator;
+import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
+import android.util.FloatProperty;
 import android.view.View;
 import android.widget.TextView;
 
-import com.android.launcher3.BubbleTextView;
-import com.android.launcher3.WorkspaceItemInfo;
+import androidx.annotation.NonNull;
+
+import com.android.launcher3.Launcher;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.WorkspaceItemInfo;
+import com.android.launcher3.graphics.DrawableFactory;
+import com.android.launcher3.graphics.PreloadIconDrawable;
 
 import java.util.ArrayList;
 import java.util.List;
-
-import androidx.annotation.NonNull;
+import java.util.function.Predicate;
 
 /**
  * Manages the drawing and animations of {@link PreviewItemDrawingParams} for a {@link FolderIcon}.
  */
 public class PreviewItemManager {
 
-    private FolderIcon mIcon;
+    private static final FloatProperty<PreviewItemManager> CURRENT_PAGE_ITEMS_TRANS_X =
+            new FloatProperty<PreviewItemManager>("currentPageItemsTransX") {
+                @Override
+                public void setValue(PreviewItemManager manager, float v) {
+                    manager.mCurrentPageItemsTransX = v;
+                    manager.onParamsChanged();
+                }
+
+                @Override
+                public Float get(PreviewItemManager manager) {
+                    return manager.mCurrentPageItemsTransX;
+                }
+            };
+
+    private final Context mContext;
+    private final FolderIcon mIcon;
+    private final DrawableFactory mDrawableFactory;
+    private final int mIconSize;
 
     // These variables are all associated with the drawing of the preview; they are stored
     // as member variables for shared usage and to avoid computation on each frame
@@ -69,7 +92,10 @@
     private static final int ITEM_SLIDE_IN_OUT_DISTANCE_PX = 200;
 
     public PreviewItemManager(FolderIcon icon) {
+        mContext = icon.getContext();
         mIcon = icon;
+        mDrawableFactory = DrawableFactory.INSTANCE.get(mContext);
+        mIconSize = Launcher.getLauncher(mContext).getDeviceProfile().folderChildIconSizePx;
     }
 
     /**
@@ -200,7 +226,7 @@
     }
 
     void buildParamsForPage(int page, ArrayList<PreviewItemDrawingParams> params, boolean animate) {
-        List<BubbleTextView> items = mIcon.getPreviewItemsOnPage(page);
+        List<WorkspaceItemInfo> items = mIcon.getPreviewItemsOnPage(page);
         int prevNumItems = params.size();
 
         // We adjust the size of the list to match the number of items in the preview.
@@ -214,13 +240,7 @@
         int numItemsInFirstPagePreview = page == 0 ? items.size() : MAX_NUM_ITEMS_IN_PREVIEW;
         for (int i = 0; i < params.size(); i++) {
             PreviewItemDrawingParams p = params.get(i);
-            p.drawable = items.get(i).getCompoundDrawables()[1];
-
-            if (p.drawable != null && !mIcon.mFolder.isOpen()) {
-                // Set the callback to FolderIcon as it is responsible to drawing the icon. The
-                // callback will be released when the folder is opened.
-                p.drawable.setCallback(mIcon);
-            }
+            setDrawable(p, items.get(i));
 
             if (!animate) {
                 computePreviewItemDrawingParams(i, numItemsInFirstPagePreview, p);
@@ -253,14 +273,8 @@
             buildParamsForPage(currentPage, mCurrentPageParams, false);
             onParamsChanged();
 
-            ValueAnimator slideAnimator = ValueAnimator.ofFloat(0, ITEM_SLIDE_IN_OUT_DISTANCE_PX);
-            slideAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
-                @Override
-                public void onAnimationUpdate(ValueAnimator valueAnimator) {
-                    mCurrentPageItemsTransX = (float) valueAnimator.getAnimatedValue();
-                    onParamsChanged();
-                }
-            });
+            ValueAnimator slideAnimator = ObjectAnimator
+                    .ofFloat(this, CURRENT_PAGE_ITEMS_TRANS_X, 0, ITEM_SLIDE_IN_OUT_DISTANCE_PX);
             slideAnimator.addListener(new AnimatorListenerAdapter() {
                 @Override
                 public void onAnimationEnd(Animator animation) {
@@ -277,6 +291,25 @@
         buildParamsForPage(0, mFirstPageParams, animate);
     }
 
+    void updatePreviewItems(Predicate<WorkspaceItemInfo> itemCheck) {
+        boolean modified = false;
+        for (PreviewItemDrawingParams param : mFirstPageParams) {
+            if (itemCheck.test(param.item)) {
+                setDrawable(param, param.item);
+                modified = true;
+            }
+        }
+        for (PreviewItemDrawingParams param : mCurrentPageParams) {
+            if (itemCheck.test(param.item)) {
+                setDrawable(param, param.item);
+                modified = true;
+            }
+        }
+        if (modified) {
+            mIcon.invalidate();
+        }
+    }
+
     boolean verifyDrawable(@NonNull Drawable who) {
         for (int i = 0; i < mFirstPageParams.size(); i++) {
             if (mFirstPageParams.get(i).drawable == who) {
@@ -296,46 +329,46 @@
      *  - Moving into a new position
      *  - Moving out of the preview
      *
-     * @param oldParams The list of items in the old preview.
-     * @param newParams The list of items in the new preview.
+     * @param oldItems The list of items in the old preview.
+     * @param newItems The list of items in the new preview.
      * @param dropped The item that was dropped onto the FolderIcon.
      */
-    public void onDrop(List<BubbleTextView> oldParams, List<BubbleTextView> newParams,
+    public void onDrop(List<WorkspaceItemInfo> oldItems, List<WorkspaceItemInfo> newItems,
             WorkspaceItemInfo dropped) {
-        int numItems = newParams.size();
+        int numItems = newItems.size();
         final ArrayList<PreviewItemDrawingParams> params = mFirstPageParams;
         buildParamsForPage(0, params, false);
 
         // New preview items for items that are moving in (except for the dropped item).
-        List<BubbleTextView> moveIn = new ArrayList<>();
-        for (BubbleTextView btv : newParams) {
-            if (!oldParams.contains(btv) && !btv.getTag().equals(dropped)) {
-                moveIn.add(btv);
+        List<WorkspaceItemInfo> moveIn = new ArrayList<>();
+        for (WorkspaceItemInfo newItem : newItems) {
+            if (!oldItems.contains(newItem) && !newItem.equals(dropped)) {
+                moveIn.add(newItem);
             }
         }
         for (int i = 0; i < moveIn.size(); ++i) {
-            int prevIndex = newParams.indexOf(moveIn.get(i));
+            int prevIndex = newItems.indexOf(moveIn.get(i));
             PreviewItemDrawingParams p = params.get(prevIndex);
             computePreviewItemDrawingParams(prevIndex, numItems, p);
-            updateTransitionParam(p, moveIn.get(i), ENTER_INDEX, newParams.indexOf(moveIn.get(i)),
+            updateTransitionParam(p, moveIn.get(i), ENTER_INDEX, newItems.indexOf(moveIn.get(i)),
                     numItems);
         }
 
         // Items that are moving into new positions within the preview.
-        for (int newIndex = 0; newIndex < newParams.size(); ++newIndex) {
-            int oldIndex = oldParams.indexOf(newParams.get(newIndex));
+        for (int newIndex = 0; newIndex < newItems.size(); ++newIndex) {
+            int oldIndex = oldItems.indexOf(newItems.get(newIndex));
             if (oldIndex >= 0 && newIndex != oldIndex) {
                 PreviewItemDrawingParams p = params.get(newIndex);
-                updateTransitionParam(p, newParams.get(newIndex), oldIndex, newIndex, numItems);
+                updateTransitionParam(p, newItems.get(newIndex), oldIndex, newIndex, numItems);
             }
         }
 
         // Old preview items that need to be moved out.
-        List<BubbleTextView> moveOut = new ArrayList<>(oldParams);
-        moveOut.removeAll(newParams);
+        List<WorkspaceItemInfo> moveOut = new ArrayList<>(oldItems);
+        moveOut.removeAll(newItems);
         for (int i = 0; i < moveOut.size(); ++i) {
-            BubbleTextView item = moveOut.get(i);
-            int oldIndex = oldParams.indexOf(item);
+            WorkspaceItemInfo item = moveOut.get(i);
+            int oldIndex = oldItems.indexOf(item);
             PreviewItemDrawingParams p = computePreviewItemDrawingParams(oldIndex, numItems, null);
             updateTransitionParam(p, item, oldIndex, EXIT_INDEX, numItems);
             params.add(0, p); // We want these items first so that they are on drawn last.
@@ -348,14 +381,9 @@
         }
     }
 
-    private void updateTransitionParam(final PreviewItemDrawingParams p, BubbleTextView btv,
+    private void updateTransitionParam(final PreviewItemDrawingParams p, WorkspaceItemInfo item,
             int prevIndex, int newIndex, int numItems) {
-        p.drawable = btv.getCompoundDrawables()[1];
-        if (!mIcon.mFolder.isOpen()) {
-            // Set the callback to FolderIcon as it is responsible to drawing the icon. The
-            // callback will be released when the folder is opened.
-            p.drawable.setCallback(mIcon);
-        }
+        setDrawable(p, item);
 
         FolderPreviewItemAnim anim = new FolderPreviewItemAnim(this, p, prevIndex, numItems,
                 newIndex, numItems, DROP_IN_ANIMATION_DURATION, null);
@@ -364,4 +392,20 @@
         }
         p.anim = anim;
     }
+
+    private void setDrawable(PreviewItemDrawingParams p, WorkspaceItemInfo item) {
+        if (item.hasPromiseIconUi()) {
+            PreloadIconDrawable drawable = mDrawableFactory.newPendingIcon(mContext, item);
+            drawable.setLevel(item.getInstallProgress());
+            p.drawable = drawable;
+        } else {
+            p.drawable = mDrawableFactory.newIcon(mContext, item);
+        }
+        p.drawable.setBounds(0, 0, mIconSize, mIconSize);
+        p.item = item;
+
+        // Set the callback to FolderIcon as it is responsible to drawing the icon. The
+        // callback will be released when the folder is opened.
+        p.drawable.setCallback(mIcon);
+    }
 }
diff --git a/src/com/android/launcher3/graphics/DragPreviewProvider.java b/src/com/android/launcher3/graphics/DragPreviewProvider.java
index 9263a2a..f579451 100644
--- a/src/com/android/launcher3/graphics/DragPreviewProvider.java
+++ b/src/com/android/launcher3/graphics/DragPreviewProvider.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.graphics;
 
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
+
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.BlurMaskFilter;
@@ -25,7 +27,6 @@
 import android.graphics.PorterDuffXfermode;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
-import android.os.Handler;
 import android.view.View;
 
 import com.android.launcher3.BubbleTextView;
@@ -35,7 +36,6 @@
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.folder.FolderIcon;
 import com.android.launcher3.icons.BitmapRenderer;
-import com.android.launcher3.util.UiThreadHelper;
 import com.android.launcher3.widget.LauncherAppWidgetHostView;
 import com.android.launcher3.widget.PendingAppWidgetHostView;
 
@@ -157,7 +157,7 @@
         }
 
         mOutlineGeneratorCallback = new OutlineGeneratorCallback(preview);
-        new Handler(UiThreadHelper.getBackgroundLooper()).post(mOutlineGeneratorCallback);
+        UI_HELPER_EXECUTOR.post(mOutlineGeneratorCallback);
     }
 
     protected static Rect getDrawableBounds(Drawable d) {
@@ -195,15 +195,22 @@
 
         private final Bitmap mPreviewSnapshot;
         private final Context mContext;
+        private final boolean mIsIcon;
 
         OutlineGeneratorCallback(Bitmap preview) {
             mPreviewSnapshot = preview;
             mContext = mView.getContext();
+            mIsIcon = mView instanceof BubbleTextView;
         }
 
         @Override
         public void run() {
             Bitmap preview = convertPreviewToAlphaBitmap(mPreviewSnapshot);
+            if (mIsIcon) {
+                int size = Launcher.getLauncher(mContext).getDeviceProfile().iconSizePx;
+                preview = Bitmap.createScaledBitmap(preview, size, size, false);
+            }
+            //else case covers AppWidgetHost (doesn't drag/drop across different device profiles)
 
             // We start by removing most of the alpha channel so as to ignore shadows, and
             // other types of partial transparency when defining the shape of the object
diff --git a/src/com/android/launcher3/graphics/DrawableFactory.java b/src/com/android/launcher3/graphics/DrawableFactory.java
index 288749f..837301f 100644
--- a/src/com/android/launcher3/graphics/DrawableFactory.java
+++ b/src/com/android/launcher3/graphics/DrawableFactory.java
@@ -80,26 +80,25 @@
      * Returns a drawable that can be used as a badge for the user or null.
      */
     @UiThread
-    public Drawable getBadgeForUser(UserHandle user, Context context) {
+    public Drawable getBadgeForUser(UserHandle user, Context context, int badgeSize) {
         if (mMyUser.equals(user)) {
             return null;
         }
 
-        Bitmap badgeBitmap = getUserBadge(user, context);
+        Bitmap badgeBitmap = getUserBadge(user, context, badgeSize);
         FastBitmapDrawable d = new FastBitmapDrawable(badgeBitmap);
         d.setFilterBitmap(true);
         d.setBounds(0, 0, badgeBitmap.getWidth(), badgeBitmap.getHeight());
         return d;
     }
 
-    protected synchronized Bitmap getUserBadge(UserHandle user, Context context) {
+    protected synchronized Bitmap getUserBadge(UserHandle user, Context context, int badgeSize) {
         Bitmap badgeBitmap = mUserBadges.get(user);
         if (badgeBitmap != null) {
             return badgeBitmap;
         }
 
         final Resources res = context.getApplicationContext().getResources();
-        int badgeSize = res.getDimensionPixelSize(R.dimen.profile_badge_size);
         badgeBitmap = Bitmap.createBitmap(badgeSize, badgeSize, Bitmap.Config.ARGB_8888);
 
         Drawable drawable = context.getPackageManager().getUserBadgedDrawableForDensity(
diff --git a/src/com/android/launcher3/graphics/GridOptionsProvider.java b/src/com/android/launcher3/graphics/GridOptionsProvider.java
index efd39ee..71b4366 100644
--- a/src/com/android/launcher3/graphics/GridOptionsProvider.java
+++ b/src/com/android/launcher3/graphics/GridOptionsProvider.java
@@ -1,5 +1,7 @@
 package com.android.launcher3.graphics;
 
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
+
 import android.content.ContentProvider;
 import android.content.ContentValues;
 import android.content.res.XmlResourceParser;
@@ -17,8 +19,6 @@
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile.GridOption;
 import com.android.launcher3.R;
-import com.android.launcher3.util.LooperExecutor;
-import com.android.launcher3.util.UiThreadHelper;
 
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
@@ -180,10 +180,10 @@
             throw new FileNotFoundException(e.getMessage());
         }
 
-        LooperExecutor executor = new LooperExecutor(UiThreadHelper.getBackgroundLooper());
         try {
             return openPipeHelper(uri, MIME_TYPE_PNG, null,
-                    executor.submit(new LauncherPreviewRenderer(getContext(), idp)), BITMAP_WRITER);
+                    UI_HELPER_EXECUTOR.submit(new LauncherPreviewRenderer(getContext(), idp)),
+                    BITMAP_WRITER);
         } catch (Exception e) {
             throw new FileNotFoundException(e.getMessage());
         }
diff --git a/src/com/android/launcher3/icons/ComponentWithLabel.java b/src/com/android/launcher3/icons/ComponentWithLabel.java
index 46b5002..832956d 100644
--- a/src/com/android/launcher3/icons/ComponentWithLabel.java
+++ b/src/com/android/launcher3/icons/ComponentWithLabel.java
@@ -34,9 +34,11 @@
     class ComponentCachingLogic implements CachingLogic<ComponentWithLabel> {
 
         private final PackageManager mPackageManager;
+        private final boolean mAddToMemCache;
 
-        public ComponentCachingLogic(Context context) {
+        public ComponentCachingLogic(Context context, boolean addToMemCache) {
             mPackageManager = context.getPackageManager();
+            mAddToMemCache = addToMemCache;
         }
 
         @Override
@@ -60,5 +62,10 @@
             // Do not load icon.
             target.icon = BitmapInfo.LOW_RES_ICON;
         }
+
+        @Override
+        public boolean addToMemCache() {
+            return mAddToMemCache;
+        }
     }
 }
diff --git a/src/com/android/launcher3/icons/IconCache.java b/src/com/android/launcher3/icons/IconCache.java
index abff237..9c46260 100644
--- a/src/com/android/launcher3/icons/IconCache.java
+++ b/src/com/android/launcher3/icons/IconCache.java
@@ -16,6 +16,9 @@
 
 package com.android.launcher3.icons;
 
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
@@ -36,8 +39,6 @@
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.ItemInfoWithIcon;
 import com.android.launcher3.LauncherFiles;
-import com.android.launcher3.LauncherModel;
-import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.compat.LauncherAppsCompat;
@@ -60,8 +61,6 @@
 
     private static final String TAG = "Launcher.IconCache";
 
-    private final MainThreadExecutor mMainThreadExecutor = new MainThreadExecutor();
-
     private final CachingLogic<ComponentWithLabel> mComponentWithLabelCachingLogic;
     private final CachingLogic<LauncherActivityInfo> mLauncherActivityInfoCachingLogic;
 
@@ -73,9 +72,9 @@
     private int mPendingIconRequestCount = 0;
 
     public IconCache(Context context, InvariantDeviceProfile inv) {
-        super(context, LauncherFiles.APP_ICONS_DB, LauncherModel.getWorkerLooper(),
+        super(context, LauncherFiles.APP_ICONS_DB, MODEL_EXECUTOR.getLooper(),
                 inv.fillResIconDpi, inv.iconBitmapSize, true /* inMemoryCache */);
-        mComponentWithLabelCachingLogic = new ComponentCachingLogic(context);
+        mComponentWithLabelCachingLogic = new ComponentCachingLogic(context, false);
         mLauncherActivityInfoCachingLogic = LauncherActivityCachingLogic.newInstance(context);
         mLauncherApps = LauncherAppsCompat.getInstance(mContext);
         mUserManager = UserManagerCompat.getInstance(mContext);
@@ -124,7 +123,7 @@
             final ItemInfoWithIcon info) {
         Preconditions.assertUIThread();
         if (mPendingIconRequestCount <= 0) {
-            LauncherModel.setWorkerPriority(Process.THREAD_PRIORITY_FOREGROUND);
+            MODEL_EXECUTOR.setThreadPriority(Process.THREAD_PRIORITY_FOREGROUND);
         }
         mPendingIconRequestCount ++;
 
@@ -136,7 +135,7 @@
                 } else if (info instanceof PackageItemInfo) {
                     getTitleAndIconForApp((PackageItemInfo) info, false);
                 }
-                mMainThreadExecutor.execute(() -> {
+                MAIN_EXECUTOR.execute(() -> {
                     caller.reapplyItemInfo(info);
                     onEnd();
                 });
@@ -149,7 +148,7 @@
     private void onIconRequestEnd() {
         mPendingIconRequestCount --;
         if (mPendingIconRequestCount <= 0) {
-            LauncherModel.setWorkerPriority(Process.THREAD_PRIORITY_BACKGROUND);
+            MODEL_EXECUTOR.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
         }
     }
 
@@ -195,7 +194,7 @@
     public synchronized String getTitleNoCache(ComponentWithLabel info) {
         CacheEntry entry = cacheLocked(info.getComponent(), info.getUser(), () -> info,
                 mComponentWithLabelCachingLogic, false /* usePackageIcon */,
-                true /* useLowResIcon */, false /* addToMemCache */);
+                true /* useLowResIcon */);
         return Utilities.trim(entry.title);
     }
 
diff --git a/src/com/android/launcher3/icons/LauncherIcons.java b/src/com/android/launcher3/icons/LauncherIcons.java
index 7632408..adc92c4 100644
--- a/src/com/android/launcher3/icons/LauncherIcons.java
+++ b/src/com/android/launcher3/icons/LauncherIcons.java
@@ -24,6 +24,8 @@
 import android.graphics.drawable.Drawable;
 import android.os.Process;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.FastBitmapDrawable;
 import com.android.launcher3.InvariantDeviceProfile;
@@ -37,8 +39,6 @@
 
 import java.util.function.Supplier;
 
-import androidx.annotation.Nullable;
-
 /**
  * Wrapper class to provide access to {@link BaseIconFactory} and also to provide pool of this class
  * that are threadsafe.
diff --git a/src/com/android/launcher3/logging/DumpTargetWrapper.java b/src/com/android/launcher3/logging/DumpTargetWrapper.java
index 365e8f2..067bdfd 100644
--- a/src/com/android/launcher3/logging/DumpTargetWrapper.java
+++ b/src/com/android/launcher3/logging/DumpTargetWrapper.java
@@ -15,17 +15,22 @@
  */
 package com.android.launcher3.logging;
 
+import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT;
+
+import android.content.ComponentName;
 import android.os.Process;
 import android.text.TextUtils;
 
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherSettings;
+import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.model.nano.LauncherDumpProto;
 import com.android.launcher3.model.nano.LauncherDumpProto.ContainerType;
 import com.android.launcher3.model.nano.LauncherDumpProto.DumpTarget;
 import com.android.launcher3.model.nano.LauncherDumpProto.ItemType;
 import com.android.launcher3.model.nano.LauncherDumpProto.UserType;
+import com.android.launcher3.util.ShortcutUtil;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -73,20 +78,23 @@
     public DumpTarget newItemTarget(ItemInfo info) {
         DumpTarget dt = new DumpTarget();
         dt.type = DumpTarget.Type.ITEM;
-
+        if (info == null) {
+            return dt;
+        }
         switch (info.itemType) {
             case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
                 dt.itemType = ItemType.APP_ICON;
                 break;
-            case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
-                dt.itemType = ItemType.UNKNOWN_ITEMTYPE;
-                break;
             case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
                 dt.itemType = ItemType.WIDGET;
                 break;
-            case LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT:
+            case ITEM_TYPE_DEEP_SHORTCUT:
+            case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
                 dt.itemType = ItemType.SHORTCUT;
                 break;
+            default:
+                dt.itemType = ItemType.UNKNOWN_ITEMTYPE;
+                break;
         }
         return dt;
     }
@@ -120,6 +128,9 @@
     }
 
     private static String getItemStr(DumpTarget t) {
+        if (t == null) {
+            return "";
+        }
         String typeStr = LoggerUtils.getFieldName(t.itemType, ItemType.class);
         if (!TextUtils.isEmpty(t.packageName)) {
             typeStr += ", package=" + t.packageName;
@@ -132,8 +143,15 @@
     }
 
     public DumpTarget writeToDumpTarget(ItemInfo info) {
-        node.component = info.getTargetComponent() == null? "":
-                info.getTargetComponent().flattenToString();
+        if (info == null) {
+            return node;
+        }
+        if (ShortcutUtil.isDeepShortcut(info)) {
+            node.component = ((WorkspaceItemInfo) info).getDeepShortcutId();
+        } else {
+            ComponentName cmp = info.getTargetComponent();
+            node.component = cmp == null ? "" : cmp.flattenToString();
+        }
         node.packageName = info.getTargetComponent() == null? "":
                 info.getTargetComponent().getPackageName();
         if (info instanceof LauncherAppWidgetInfo) {
diff --git a/src/com/android/launcher3/logging/EventLogArray.java b/src/com/android/launcher3/logging/EventLogArray.java
index f20f365..3ecfb23 100644
--- a/src/com/android/launcher3/logging/EventLogArray.java
+++ b/src/com/android/launcher3/logging/EventLogArray.java
@@ -16,11 +16,13 @@
 package com.android.launcher3.logging;
 
 
+import android.util.Log;
 import java.io.PrintWriter;
 import java.text.SimpleDateFormat;
 import java.util.Arrays;
 import java.util.Date;
 import java.util.Locale;
+import java.util.Random;
 
 /**
  * A utility class to record and log events. Events are stored in a fixed size array and old logs
@@ -37,6 +39,7 @@
     private final String name;
     private final EventEntry[] logs;
     private int nextIndex;
+    private int mLogId;
 
     public EventLogArray(String name, int size) {
         this.name = name;
@@ -52,10 +55,6 @@
         addLog(TYPE_INTEGER, event, extras);
     }
 
-    public void addLog(String event, float extras) {
-        addLog(TYPE_FLOAT, event, extras);
-    }
-
     public void addLog(String event, boolean extras) {
         addLog(extras ? TYPE_BOOL_TRUE : TYPE_BOOL_FALSE, event, 0);
     }
@@ -65,7 +64,7 @@
         int last = (nextIndex + logs.length - 1) % logs.length;
         int secondLast = (nextIndex + logs.length - 2) % logs.length;
         if (isEntrySame(logs[last], type, event) && isEntrySame(logs[secondLast], type, event)) {
-            logs[last].update(type, event, extras);
+            logs[last].update(type, event, extras, mLogId);
             logs[secondLast].duplicateCount++;
             return;
         }
@@ -73,7 +72,7 @@
         if (logs[nextIndex] == null) {
             logs[nextIndex] = new EventEntry();
         }
-        logs[nextIndex].update(type, event, extras);
+        logs[nextIndex].update(type, event, extras, mLogId);
         nextIndex = (nextIndex + 1) % logs.length;
     }
 
@@ -113,10 +112,18 @@
             if (log.duplicateCount > 0) {
                 msg.append(" & ").append(log.duplicateCount).append(" similar events");
             }
+            msg.append(" traceId: ").append(log.traceId);
             writer.println(msg);
         }
     }
 
+    /** Returns a 3 digit random number between 100-999 */
+    public int generateAndSetLogId() {
+        Random r = new Random();
+        mLogId = r.nextInt(900) + 100;
+        return mLogId;
+    }
+
     private boolean isEntrySame(EventEntry entry, int type, String event) {
         return entry != null && entry.type == type && entry.event.equals(event);
     }
@@ -129,11 +136,13 @@
         private float extras;
         private long time;
         private int duplicateCount;
+        private int traceId;
 
-        public void update(int type, String event, float extras) {
+        public void update(int type, String event, float extras, int traceId) {
             this.type = type;
             this.event = event;
             this.extras = extras;
+            this.traceId = traceId;
             time = System.currentTimeMillis();
             duplicateCount = 0;
         }
diff --git a/src/com/android/launcher3/logging/FileLog.java b/src/com/android/launcher3/logging/FileLog.java
index f7f8ef1..923a89b 100644
--- a/src/com/android/launcher3/logging/FileLog.java
+++ b/src/com/android/launcher3/logging/FileLog.java
@@ -1,13 +1,14 @@
 package com.android.launcher3.logging;
 
+import static com.android.launcher3.util.Executors.createAndStartNewLooper;
+
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.Message;
 import android.util.Log;
 import android.util.Pair;
 
-import com.android.launcher3.Utilities;
-import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.util.IOUtils;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -29,8 +30,7 @@
  */
 public final class FileLog {
 
-    protected static final boolean ENABLED =
-            FeatureFlags.IS_DOGFOOD_BUILD || Utilities.IS_DEBUG_DEVICE;
+    protected static final boolean ENABLED = true;
     private static final String FILE_NAME_PREFIX = "log-";
     private static final DateFormat DATE_FORMAT =
             DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
@@ -91,9 +91,8 @@
     private static Handler getHandler() {
         synchronized (DATE_FORMAT) {
             if (sHandler == null) {
-                HandlerThread thread = new HandlerThread("file-logger");
-                thread.start();
-                sHandler = new Handler(thread.getLooper(), new LogWriterCallback());
+                sHandler = new Handler(createAndStartNewLooper("file-logger"),
+                        new LogWriterCallback());
             }
         }
         return sHandler;
@@ -131,7 +130,7 @@
         private PrintWriter mCurrentWriter = null;
 
         private void closeWriter() {
-            Utilities.closeSilently(mCurrentWriter);
+            IOUtils.closeSilently(mCurrentWriter);
             mCurrentWriter = null;
         }
 
@@ -219,7 +218,7 @@
             } catch (Exception e) {
                 // ignore
             } finally {
-                Utilities.closeSilently(in);
+                IOUtils.closeSilently(in);
             }
         }
     }
diff --git a/src/com/android/launcher3/logging/LoggerUtils.java b/src/com/android/launcher3/logging/LoggerUtils.java
index 9b75b43..925b7ba 100644
--- a/src/com/android/launcher3/logging/LoggerUtils.java
+++ b/src/com/android/launcher3/logging/LoggerUtils.java
@@ -44,6 +44,7 @@
 public class LoggerUtils {
     private static final ArrayMap<Class, SparseArray<String>> sNameCache = new ArrayMap<>();
     private static final String UNKNOWN = "UNKNOWN";
+    private static final int DEFAULT_PREDICTED_RANK = -100;
 
     public static String getFieldName(int value, Class c) {
         SparseArray<String> cache;
@@ -90,7 +91,7 @@
     }
 
     public static String getTargetStr(Target t) {
-        if (t == null){
+        if (t == null) {
             return "";
         }
         String str = "";
@@ -108,7 +109,7 @@
                         t.containerType == NAVBAR) {
                     str += " id=" + t.pageIndex;
                 } else if (t.containerType == ContainerType.FOLDER) {
-                    str += " grid(" + t.gridX + "," + t.gridY + ")";
+                    str += "[PageIndex=" + t.pageIndex + ", grid(" + t.gridX + "," + t.gridY + ")]";
                 }
                 break;
             default:
@@ -137,17 +138,16 @@
         if (t.intentHash != 0) {
             typeStr += ", intentHash=" + t.intentHash;
         }
-        if ((t.packageNameHash != 0 || t.componentHash != 0 || t.intentHash != 0) &&
-                t.itemType != ItemType.TASK) {
+        if (t.itemType == ItemType.FOLDER_ICON) {
+            typeStr += ", grid(" + t.gridX + "," + t.gridY + ")";
+        } else if ((t.packageNameHash != 0 || t.componentHash != 0 || t.intentHash != 0)
+                && t.itemType != ItemType.TASK) {
             typeStr += ", predictiveRank=" + t.predictedRank + ", grid(" + t.gridX + "," + t.gridY
-                    + "), span(" + t.spanX + "," + t.spanY
-                    + "), pageIdx=" + t.pageIndex;
-
+                    + "), span(" + t.spanX + "," + t.spanY + "), pageIdx=" + t.pageIndex;
         }
         if (t.searchQueryLength != 0) {
             typeStr += ", searchQueryLength=" + t.searchQueryLength;
         }
-
         if (t.itemType == ItemType.TASK) {
             typeStr += ", pageIdx=" + t.pageIndex;
         }
@@ -168,17 +168,17 @@
 
     public static Target newItemTarget(ItemInfo info, InstantAppResolver instantAppResolver) {
         Target t = newTarget(Target.Type.ITEM);
-
         switch (info.itemType) {
             case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
                 t.itemType = (instantAppResolver != null && info instanceof AppInfo
-                        && instantAppResolver.isInstantApp(((AppInfo) info)) )
+                        && instantAppResolver.isInstantApp(((AppInfo) info)))
                         ? ItemType.WEB_APP
                         : ItemType.APP_ICON;
-                t.predictedRank = -100; // Never assigned
+                t.predictedRank = DEFAULT_PREDICTED_RANK;
                 break;
             case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
                 t.itemType = ItemType.SHORTCUT;
+                t.predictedRank = DEFAULT_PREDICTED_RANK;
                 break;
             case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
                 t.itemType = ItemType.FOLDER_ICON;
@@ -188,6 +188,7 @@
                 break;
             case LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT:
                 t.itemType = ItemType.DEEPSHORTCUT;
+                t.predictedRank = DEFAULT_PREDICTED_RANK;
                 break;
         }
         return t;
diff --git a/src/com/android/launcher3/logging/UserEventDispatcher.java b/src/com/android/launcher3/logging/UserEventDispatcher.java
index c72b07a..99906fe 100644
--- a/src/com/android/launcher3/logging/UserEventDispatcher.java
+++ b/src/com/android/launcher3/logging/UserEventDispatcher.java
@@ -26,6 +26,8 @@
 import static com.android.launcher3.logging.LoggerUtils.newTarget;
 import static com.android.launcher3.logging.LoggerUtils.newTouchAction;
 
+import static java.util.Optional.ofNullable;
+
 import android.app.PendingIntent;
 import android.content.ComponentName;
 import android.content.Context;
@@ -35,6 +37,7 @@
 import android.util.Log;
 import android.view.View;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import com.android.launcher3.DropTarget;
@@ -58,7 +61,7 @@
 /**
  * Manages the creation of {@link LauncherEvent}.
  * To debug this class, execute following command before side loading a new apk.
- *
+ * <p>
  * $ adb shell setprop log.tag.UserEvent VERBOSE
  */
 public class UserEventDispatcher implements ResourceBasedOverride {
@@ -94,19 +97,26 @@
 
     /**
      * Fills in the container data on the given event if the given view is not null.
+     *
      * @return whether container data was added.
      */
-    public static boolean fillInLogContainerData(LauncherLogProto.LauncherEvent event, @Nullable View v) {
+    public boolean fillInLogContainerData(LauncherLogProto.LauncherEvent event, @Nullable View v) {
         // Fill in grid(x,y), pageIndex of the child and container type of the parent
         LogContainerProvider provider = StatsLogUtils.getLaunchProviderRecursive(v);
         if (v == null || !(v.getTag() instanceof ItemInfo) || provider == null) {
             return false;
         }
-        ItemInfo itemInfo = (ItemInfo) v.getTag();
-        provider.fillInLogContainerData(v, itemInfo, event.srcTarget[0], event.srcTarget[1]);
+        final ItemInfo itemInfo = (ItemInfo) v.getTag();
+        final Target target = event.srcTarget[0];
+        final Target targetParent = event.srcTarget[1];
+        onFillInLogContainerData(itemInfo, target, targetParent);
+        provider.fillInLogContainerData(v, itemInfo, target, targetParent);
         return true;
     }
 
+    protected void onFillInLogContainerData(
+            @NonNull ItemInfo itemInfo, @NonNull Target target, @NonNull Target targetParent) { }
+
     private boolean mSessionStarted;
     private long mElapsedContainerMillis;
     private long mElapsedSessionMillis;
@@ -139,7 +149,11 @@
         mAppOrTaskLaunch = true;
     }
 
-    public void logActionTip(int actionType, int viewType) { }
+    /**
+     * Dummy method.
+     */
+    public void logActionTip(int actionType, int viewType) {
+    }
 
     @Deprecated
     public void logTaskLaunchOrDismiss(int action, int direction, int taskIndex,
@@ -184,15 +198,15 @@
 
     public void logActionCommand(int command, int srcContainerType, int dstContainerType) {
         logActionCommand(command, newContainerTarget(srcContainerType),
-                dstContainerType >=0 ? newContainerTarget(dstContainerType) : null);
+                dstContainerType >= 0 ? newContainerTarget(dstContainerType) : null);
     }
 
     public void logActionCommand(int command, int srcContainerType, int dstContainerType,
-                                 int pageIndex) {
+            int pageIndex) {
         Target srcTarget = newContainerTarget(srcContainerType);
         srcTarget.pageIndex = pageIndex;
         logActionCommand(command, srcTarget,
-                dstContainerType >=0 ? newContainerTarget(dstContainerType) : null);
+                dstContainerType >= 0 ? newContainerTarget(dstContainerType) : null);
     }
 
     public void logActionCommand(int command, Target srcTarget, Target dstTarget) {
@@ -241,7 +255,7 @@
     }
 
     public void logActionOnControl(int action, int controlType, int parentContainer,
-                                   int grandParentContainer){
+            int grandParentContainer) {
         LauncherEvent event = newLauncherEvent(newTouchAction(action),
                 newControlTarget(controlType),
                 newContainerTarget(parentContainer),
@@ -250,11 +264,11 @@
     }
 
     public void logActionOnControl(int action, int controlType, @Nullable View controlInContainer,
-                                   int parentContainerType) {
+            int parentContainerType) {
         final LauncherEvent event = (controlInContainer == null && parentContainerType < 0)
                 ? newLauncherEvent(newTouchAction(action), newTarget(Target.Type.CONTROL))
                 : newLauncherEvent(newTouchAction(action), newTarget(Target.Type.CONTROL),
-                        newTarget(Target.Type.CONTAINER));
+                newTarget(Target.Type.CONTAINER));
         event.srcTarget[0].controlType = controlType;
         if (controlInContainer != null) {
             fillInLogContainerData(event, controlInContainer);
@@ -301,9 +315,9 @@
      * (1) WORKSPACE: if the launcher is the foreground activity
      * (2) APP: if another app was the foreground activity
      */
-    public void logStateChangeAction(int action, int dir, int downX, int downY, int srcChildTargetType,
-                                     int srcParentContainerType, int dstContainerType,
-                                     int pageIndex) {
+    public void logStateChangeAction(int action, int dir, int downX, int downY,
+            int srcChildTargetType, int srcParentContainerType, int dstContainerType,
+            int pageIndex) {
         LauncherEvent event;
         if (srcChildTargetType == LauncherLogProto.ItemType.TASK) {
             event = newLauncherEvent(newTouchAction(action),
@@ -326,9 +340,25 @@
     }
 
     public void logActionOnItem(int action, int dir, int itemType) {
+        logActionOnItem(action, dir, itemType, null, null);
+    }
+
+    /**
+     * Creates new {@link LauncherEvent} of ITEM target type with input arguments and dispatches it.
+     *
+     * @param touchAction ENUM value of {@link LauncherLogProto.Action.Touch} Action
+     * @param dir         ENUM value of {@link LauncherLogProto.Action.Direction} Action
+     * @param itemType    ENUM value of {@link LauncherLogProto.ItemType}
+     * @param gridX       Nullable X coordinate of item's position on the workspace grid
+     * @param gridY       Nullable Y coordinate of item's position on the workspace grid
+     */
+    public void logActionOnItem(int touchAction, int dir, int itemType,
+            @Nullable Integer gridX, @Nullable Integer gridY) {
         Target itemTarget = newTarget(Target.Type.ITEM);
         itemTarget.itemType = itemType;
-        LauncherEvent event = newLauncherEvent(newTouchAction(action), itemTarget);
+        ofNullable(gridX).ifPresent(value -> itemTarget.gridX = value);
+        ofNullable(gridY).ifPresent(value -> itemTarget.gridY = value);
+        LauncherEvent event = newLauncherEvent(newTouchAction(touchAction), itemTarget);
         event.action.dir = dir;
         dispatchUserEvent(event, null);
     }
@@ -351,7 +381,7 @@
         LauncherEvent event = newLauncherEvent(newTouchAction(Action.Touch.DRAGDROP),
                 newItemTarget(dragObj.originalDragInfo, mInstantAppResolver),
                 newTarget(Target.Type.CONTAINER));
-        event.destTarget = new Target[] {
+        event.destTarget = new Target[]{
                 newItemTarget(dragObj.originalDragInfo, mInstantAppResolver),
                 newDropTarget(dropTargetAsView)
         };
@@ -373,14 +403,10 @@
         int actionTouch = isButton ? Action.Touch.TAP : Action.Touch.SWIPE;
         Action action = newCommandAction(actionTouch);
         action.command = Action.Command.BACK;
-        action.dir = isButton
-                ? Action.Direction.NONE
-                : gestureSwipeLeft
-                        ? Action.Direction.LEFT
-                        : Action.Direction.RIGHT;
-        Target target = newControlTarget(isButton
-                ? LauncherLogProto.ControlType.BACK_BUTTON
-                : LauncherLogProto.ControlType.BACK_GESTURE);
+        action.dir = isButton ? Action.Direction.NONE :
+                gestureSwipeLeft ? Action.Direction.LEFT : Action.Direction.RIGHT;
+        Target target = newControlTarget(isButton ? LauncherLogProto.ControlType.BACK_BUTTON :
+                LauncherLogProto.ControlType.BACK_GESTURE);
         target.spanX = downX;
         target.spanY = downY;
         target.cardinality = completed ? 1 : 0;
@@ -391,6 +417,7 @@
 
     /**
      * Currently logs following containers: workspace, allapps, widget tray.
+     *
      * @param reason
      */
     public final void resetElapsedContainerMillis(String reason) {
@@ -427,10 +454,16 @@
         mAppOrTaskLaunch = false;
         ev.elapsedContainerMillis = SystemClock.uptimeMillis() - mElapsedContainerMillis;
         ev.elapsedSessionMillis = SystemClock.uptimeMillis() - mElapsedSessionMillis;
-
         if (!IS_VERBOSE) {
             return;
         }
+        Log.d(TAG, generateLog(ev));
+    }
+
+    /**
+     * Returns a human-readable log for given user event.
+     */
+    public static String generateLog(LauncherEvent ev) {
         String log = "\n-----------------------------------------------------"
                 + "\naction:" + LoggerUtils.getActionStr(ev.action);
         if (ev.srcTarget != null && ev.srcTarget.length > 0) {
@@ -445,8 +478,7 @@
                 ev.elapsedSessionMillis,
                 ev.actionDurationMillis);
         log += "\n\n";
-        Log.d(TAG, log);
-        return;
+        return log;
     }
 
     private static String getTargetsStr(Target[] targets) {
diff --git a/src/com/android/launcher3/model/AddWorkspaceItemsTask.java b/src/com/android/launcher3/model/AddWorkspaceItemsTask.java
index 7d4f2f7..b8c583c 100644
--- a/src/com/android/launcher3/model/AddWorkspaceItemsTask.java
+++ b/src/com/android/launcher3/model/AddWorkspaceItemsTask.java
@@ -22,7 +22,6 @@
 import android.util.LongSparseArray;
 import android.util.Pair;
 
-import com.android.launcher3.AllAppsList;
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.FolderInfo;
 import com.android.launcher3.InvariantDeviceProfile;
@@ -30,14 +29,14 @@
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherModel.CallbackTask;
-import com.android.launcher3.LauncherModel.Callbacks;
+import com.android.launcher3.model.BgDataModel.Callbacks;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.WorkspaceItemInfo;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.PackageInstallerCompat;
 import com.android.launcher3.util.GridOccupancy;
 import com.android.launcher3.util.IntArray;
+import com.android.launcher3.util.PackageManagerHelper;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -77,6 +76,11 @@
                     if (shortcutExists(dataModel, item.getIntent(), item.user)) {
                         continue;
                     }
+
+                    // b/139663018 Short-circuit this logic if the icon is a system app
+                    if (PackageManagerHelper.isSystemApp(app.getContext(), item.getIntent())) {
+                        continue;
+                    }
                 }
 
                 if (item.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) {
@@ -118,25 +122,39 @@
                     }
                     SessionInfo sessionInfo = packageInstaller.getActiveSessionInfo(item.user,
                             packageName);
+                    List<LauncherActivityInfo> activities = launcherApps
+                            .getActivityList(packageName, item.user);
+                    boolean hasActivity = activities != null && !activities.isEmpty();
+
                     if (sessionInfo == null) {
-                        List<LauncherActivityInfo> activities = launcherApps
-                                .getActivityList(packageName, item.user);
-                        if (activities != null && !activities.isEmpty()) {
-                            // App was installed while launcher was in the background.
-                            itemInfo = new AppInfo(app.getContext(), activities.get(0), item.user)
-                                    .makeWorkspaceItem();
-                            WorkspaceItemInfo wii = (WorkspaceItemInfo) itemInfo;
-                            wii.title = "";
-                            wii.applyFrom(app.getIconCache().getDefaultIcon(item.user));
-                            app.getIconCache().getTitleAndIcon(wii,
-                                    ((WorkspaceItemInfo) itemInfo).usingLowResIcon());
-                        } else {
+                        if (!hasActivity) {
                             // Session was cancelled, do not add.
                             continue;
                         }
                     } else {
                         workspaceInfo.setInstallProgress((int) sessionInfo.getProgress());
                     }
+
+                    if (hasActivity) {
+                        // App was installed while launcher was in the background,
+                        // or app was already installed for another user.
+                        itemInfo = new AppInfo(app.getContext(), activities.get(0), item.user)
+                                .makeWorkspaceItem();
+
+                        if (shortcutExists(dataModel, itemInfo.getIntent(), itemInfo.user)) {
+                            // We need this additional check here since we treat all auto added
+                            // workspace items as promise icons. At this point we now have the
+                            // correct intent to compare against existing workspace icons.
+                            // Icon already exists on the workspace and should not be auto-added.
+                            continue;
+                        }
+
+                        WorkspaceItemInfo wii = (WorkspaceItemInfo) itemInfo;
+                        wii.title = "";
+                        wii.applyFrom(app.getIconCache().getDefaultIcon(item.user));
+                        app.getIconCache().getTitleAndIcon(wii,
+                                ((WorkspaceItemInfo) itemInfo).usingLowResIcon());
+                    }
                 }
 
                 // Add the shortcut to the db
@@ -200,7 +218,7 @@
             intentWithoutPkg = intent.toUri(0);
         }
 
-        boolean isLauncherAppTarget = Utilities.isLauncherAppTarget(intent);
+        boolean isLauncherAppTarget = PackageManagerHelper.isLauncherAppTarget(intent);
         synchronized (dataModel) {
             for (ItemInfo item : dataModel.itemsIdMap) {
                 if (item instanceof WorkspaceItemInfo) {
diff --git a/src/com/android/launcher3/AllAppsList.java b/src/com/android/launcher3/model/AllAppsList.java
similarity index 69%
rename from src/com/android/launcher3/AllAppsList.java
rename to src/com/android/launcher3/model/AllAppsList.java
index 8b49c06..3873a17 100644
--- a/src/com/android/launcher3/AllAppsList.java
+++ b/src/com/android/launcher3/model/AllAppsList.java
@@ -14,25 +14,37 @@
  * limitations under the License.
  */
 
-package com.android.launcher3;
+package com.android.launcher3.model;
+
+import static com.android.launcher3.AppInfo.COMPONENT_KEY_COMPARATOR;
+import static com.android.launcher3.AppInfo.EMPTY_ARRAY;
 
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.LauncherActivityInfo;
+import android.os.LocaleList;
 import android.os.Process;
 import android.os.UserHandle;
 import android.util.Log;
 
+import com.android.launcher3.AppFilter;
+import com.android.launcher3.AppInfo;
+import com.android.launcher3.PromiseAppInfo;
+import com.android.launcher3.compat.AlphabeticIndexCompat;
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.PackageInstallerCompat;
+import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo;
 import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.util.FlagOp;
 import com.android.launcher3.util.ItemInfoMatcher;
+import com.android.launcher3.util.SafeCloseable;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
+import java.util.function.Consumer;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -42,29 +54,40 @@
  * Stores the list of all applications for the all apps view.
  */
 public class AllAppsList {
+
     private static final String TAG = "AllAppsList";
+    private static final Consumer<AppInfo> NO_OP_CONSUMER = a -> { };
+
 
     public static final int DEFAULT_APPLICATIONS_NUMBER = 42;
 
     /** The list off all apps. */
     public final ArrayList<AppInfo> data = new ArrayList<>(DEFAULT_APPLICATIONS_NUMBER);
-    /** The list of apps that have been added since the last notify() call. */
-    public ArrayList<AppInfo> added = new ArrayList<>(DEFAULT_APPLICATIONS_NUMBER);
-    /** The list of apps that have been removed since the last notify() call. */
-    public ArrayList<AppInfo> removed = new ArrayList<>();
-    /** The list of apps that have been modified since the last notify() call. */
-    public ArrayList<AppInfo> modified = new ArrayList<>();
 
     private IconCache mIconCache;
-
     private AppFilter mAppFilter;
 
+    private boolean mDataChanged = false;
+    private Consumer<AppInfo> mRemoveListener = NO_OP_CONSUMER;
+
+    private AlphabeticIndexCompat mIndex;
+
     /**
      * Boring constructor.
      */
     public AllAppsList(IconCache iconCache, AppFilter appFilter) {
         mIconCache = iconCache;
         mAppFilter = appFilter;
+        mIndex = new AlphabeticIndexCompat(LocaleList.getDefault());
+    }
+
+    /**
+     * Returns true if there have been any changes since last call.
+     */
+    public boolean getAndResetChangeFlag() {
+        boolean result = mDataChanged;
+        mDataChanged = false;
+        return result;
     }
 
     /**
@@ -81,9 +104,10 @@
             return;
         }
         mIconCache.getTitleAndIcon(info, activityInfo, true /* useLowResIcon */);
+        info.sectionName = mIndex.computeSectionName(info.title);
 
         data.add(info);
-        added.add(info);
+        mDataChanged = true;
     }
 
     public void addPromiseApp(Context context,
@@ -94,31 +118,46 @@
         if (applicationInfo == null) {
             PromiseAppInfo info = new PromiseAppInfo(installInfo);
             mIconCache.getTitleAndIcon(info, info.usingLowResIcon());
+            info.sectionName = mIndex.computeSectionName(info.title);
+
             data.add(info);
-            added.add(info);
+            mDataChanged = true;
         }
     }
 
-    public void removePromiseApp(AppInfo appInfo) {
-        // the <em>removed</em> list is handled by the caller
-        // so not adding it here
-        data.remove(appInfo);
+    public PromiseAppInfo updatePromiseInstallInfo(PackageInstallInfo installInfo) {
+        UserHandle user = Process.myUserHandle();
+        for (int i=0; i < data.size(); i++) {
+            final AppInfo appInfo = data.get(i);
+            final ComponentName tgtComp = appInfo.getTargetComponent();
+            if (tgtComp != null && tgtComp.getPackageName().equals(installInfo.packageName)
+                    && appInfo.user.equals(user)
+                    && appInfo instanceof PromiseAppInfo) {
+                final PromiseAppInfo promiseAppInfo = (PromiseAppInfo) appInfo;
+                if (installInfo.state == PackageInstallerCompat.STATUS_INSTALLING) {
+                    promiseAppInfo.level = installInfo.progress;
+                    return promiseAppInfo;
+                } else if (installInfo.state == PackageInstallerCompat.STATUS_FAILED) {
+                    removeApp(i);
+                }
+            }
+        }
+        return null;
+    }
+
+    private void removeApp(int index) {
+        AppInfo removed = data.remove(index);
+        if (removed != null) {
+            mDataChanged = true;
+            mRemoveListener.accept(removed);
+        }
     }
 
     public void clear() {
         data.clear();
-        // TODO: do we clear these too?
-        added.clear();
-        removed.clear();
-        modified.clear();
-    }
-
-    public int size() {
-        return data.size();
-    }
-
-    public AppInfo get(int index) {
-        return data.get(index);
+        mDataChanged = false;
+        // Reset the index as locales might have changed
+        mIndex = new AlphabeticIndexCompat(LocaleList.getDefault());
     }
 
     /**
@@ -142,8 +181,7 @@
         for (int i = data.size() - 1; i >= 0; i--) {
             AppInfo info = data.get(i);
             if (info.user.equals(user) && packageName.equals(info.componentName.getPackageName())) {
-                removed.add(info);
-                data.remove(i);
+                removeApp(i);
             }
         }
     }
@@ -157,17 +195,17 @@
             AppInfo info = data.get(i);
             if (matcher.matches(info, info.componentName)) {
                 info.runtimeStatusFlags = op.apply(info.runtimeStatusFlags);
-                modified.add(info);
+                mDataChanged = true;
             }
         }
     }
 
-    public void updateIconsAndLabels(HashSet<String> packages, UserHandle user,
-            ArrayList<AppInfo> outUpdates) {
+    public void updateIconsAndLabels(HashSet<String> packages, UserHandle user) {
         for (AppInfo info : data) {
             if (info.user.equals(user) && packages.contains(info.componentName.getPackageName())) {
                 mIconCache.updateTitleAndIcon(info);
-                outUpdates.add(info);
+                info.sectionName = mIndex.computeSectionName(info.title);
+                mDataChanged = true;
             }
         }
     }
@@ -188,8 +226,7 @@
                         && packageName.equals(applicationInfo.componentName.getPackageName())) {
                     if (!findActivity(matches, applicationInfo.componentName)) {
                         Log.w(TAG, "Changing shortcut target due to app component name change.");
-                        removed.add(applicationInfo);
-                        data.remove(i);
+                        removeApp(i);
                     }
                 }
             }
@@ -202,7 +239,9 @@
                     add(new AppInfo(context, info, user), info);
                 } else {
                     mIconCache.getTitleAndIcon(applicationInfo, info, true /* useLowResIcon */);
-                    modified.add(applicationInfo);
+                    applicationInfo.sectionName = mIndex.computeSectionName(applicationInfo.title);
+
+                    mDataChanged = true;
                 }
             }
         } else {
@@ -211,15 +250,13 @@
                 final AppInfo applicationInfo = data.get(i);
                 if (user.equals(applicationInfo.user)
                         && packageName.equals(applicationInfo.componentName.getPackageName())) {
-                    removed.add(applicationInfo);
                     mIconCache.remove(applicationInfo.componentName, user);
-                    data.remove(i);
+                    removeApp(i);
                 }
             }
         }
     }
 
-
     /**
      * Returns whether <em>apps</em> contains <em>component</em>.
      */
@@ -247,4 +284,16 @@
         }
         return null;
     }
+
+    public AppInfo[] copyData() {
+        AppInfo[] result = data.toArray(EMPTY_ARRAY);
+        Arrays.sort(result, COMPONENT_KEY_COMPARATOR);
+        return result;
+    }
+
+    public SafeCloseable trackRemoves(Consumer<AppInfo> removeListener) {
+        mRemoveListener = removeListener;
+
+        return () -> mRemoveListener = NO_OP_CONSUMER;
+    }
 }
diff --git a/src/com/android/launcher3/model/AppLaunchTracker.java b/src/com/android/launcher3/model/AppLaunchTracker.java
index 29a46cf..13ab033 100644
--- a/src/com/android/launcher3/model/AppLaunchTracker.java
+++ b/src/com/android/launcher3/model/AppLaunchTracker.java
@@ -51,5 +51,8 @@
     public void onStartApp(ComponentName componentName, UserHandle user,
             @Nullable String container) { }
 
+    public void onDismissApp(ComponentName componentName, UserHandle user,
+             @Nullable String container){}
+
     public void onReturnedToHome() { }
 }
diff --git a/src/com/android/launcher3/model/BaseLoaderResults.java b/src/com/android/launcher3/model/BaseLoaderResults.java
index 97cf267..0a4f005 100644
--- a/src/com/android/launcher3/model/BaseLoaderResults.java
+++ b/src/com/android/launcher3/model/BaseLoaderResults.java
@@ -16,21 +16,21 @@
 
 package com.android.launcher3.model;
 
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+
 import android.os.Looper;
 import android.util.Log;
 
-import com.android.launcher3.AllAppsList;
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherModel.CallbackTask;
-import com.android.launcher3.LauncherModel.Callbacks;
 import com.android.launcher3.LauncherSettings;
-import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.PagedView;
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.model.BgDataModel.Callbacks;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSet;
 import com.android.launcher3.util.LooperIdleLock;
@@ -65,7 +65,7 @@
 
     public BaseLoaderResults(LauncherAppState app, BgDataModel dataModel,
             AllAppsList allAppsList, int pageToBindFirst, WeakReference<Callbacks> callbacks) {
-        mUiExecutor = new MainThreadExecutor();
+        mUiExecutor = MAIN_EXECUTOR;
         mApp = app;
         mBgDataModel = dataModel;
         mBgAllAppsList = allAppsList;
@@ -279,9 +279,8 @@
 
     public void bindAllApps() {
         // shallow copy
-        @SuppressWarnings("unchecked")
-        ArrayList<AppInfo> list = (ArrayList<AppInfo>) mBgAllAppsList.data.clone();
-        executeCallbacksTask(c -> c.bindAllApplications(list), mUiExecutor);
+        AppInfo[] apps = mBgAllAppsList.copyData();
+        executeCallbacksTask(c -> c.bindAllApplications(apps), mUiExecutor);
     }
 
     public abstract void bindWidgets();
diff --git a/src/com/android/launcher3/model/BaseModelUpdateTask.java b/src/com/android/launcher3/model/BaseModelUpdateTask.java
index eea3d8c..e12633b 100644
--- a/src/com/android/launcher3/model/BaseModelUpdateTask.java
+++ b/src/com/android/launcher3/model/BaseModelUpdateTask.java
@@ -17,12 +17,12 @@
 
 import android.util.Log;
 
-import com.android.launcher3.AllAppsList;
+import com.android.launcher3.AppInfo;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherModel;
 import com.android.launcher3.LauncherModel.ModelUpdateTask;
 import com.android.launcher3.LauncherModel.CallbackTask;
-import com.android.launcher3.LauncherModel.Callbacks;
+import com.android.launcher3.model.BgDataModel.Callbacks;
 import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.ItemInfoMatcher;
@@ -30,6 +30,7 @@
 
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.List;
 import java.util.concurrent.Executor;
 
 /**
@@ -95,12 +96,7 @@
 
     public void bindUpdatedWorkspaceItems(final ArrayList<WorkspaceItemInfo> updatedShortcuts) {
         if (!updatedShortcuts.isEmpty()) {
-            scheduleCallbackTask(new CallbackTask() {
-                @Override
-                public void execute(Callbacks callbacks) {
-                    callbacks.bindWorkspaceItemsChanged(updatedShortcuts);
-                }
-            });
+            scheduleCallbackTask(c -> c.bindWorkspaceItemsChanged(updatedShortcuts));
         }
     }
 
@@ -113,23 +109,20 @@
     public void bindUpdatedWidgets(BgDataModel dataModel) {
         final ArrayList<WidgetListRowEntry> widgets =
                 dataModel.widgetsModel.getWidgetsList(mApp.getContext());
-        scheduleCallbackTask(new CallbackTask() {
-            @Override
-            public void execute(Callbacks callbacks) {
-                callbacks.bindAllWidgets(widgets);
-            }
-        });
+        scheduleCallbackTask(c -> c.bindAllWidgets(widgets));
     }
 
     public void deleteAndBindComponentsRemoved(final ItemInfoMatcher matcher) {
         getModelWriter().deleteItemsFromDatabase(matcher);
 
         // Call the components-removed callback
-        scheduleCallbackTask(new CallbackTask() {
-            @Override
-            public void execute(Callbacks callbacks) {
-                callbacks.bindWorkspaceComponentsRemoved(matcher);
-            }
-        });
+        scheduleCallbackTask(c -> c.bindWorkspaceComponentsRemoved(matcher));
+    }
+
+    public void bindApplicationsIfNeeded() {
+        if (mAllAppsList.getAndResetChangeFlag()) {
+            AppInfo[] apps = mAllAppsList.copyData();
+            scheduleCallbackTask(c -> c.bindAllApplications(apps));
+        }
     }
 }
diff --git a/src/com/android/launcher3/model/BgDataModel.java b/src/com/android/launcher3/model/BgDataModel.java
index 8f0cd08..0e20270 100644
--- a/src/com/android/launcher3/model/BgDataModel.java
+++ b/src/com/android/launcher3/model/BgDataModel.java
@@ -22,11 +22,13 @@
 import android.util.Log;
 import android.util.MutableInt;
 
+import com.android.launcher3.AppInfo;
 import com.android.launcher3.FolderInfo;
 import com.android.launcher3.InstallShortcutReceiver;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherSettings;
+import com.android.launcher3.PromiseAppInfo;
 import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.Workspace;
 import com.android.launcher3.config.FeatureFlags;
@@ -40,6 +42,10 @@
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSet;
 import com.android.launcher3.util.IntSparseArrayMap;
+import com.android.launcher3.util.ItemInfoMatcher;
+import com.android.launcher3.util.ViewOnDrawExecutor;
+import com.android.launcher3.widget.WidgetListRowEntry;
+
 import com.google.protobuf.nano.MessageNano;
 
 import java.io.FileDescriptor;
@@ -49,6 +55,7 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
@@ -391,4 +398,30 @@
             }
         }
     }
+
+    public interface Callbacks {
+        void rebindModel();
+
+        int getCurrentWorkspaceScreen();
+        void clearPendingBinds();
+        void startBinding();
+        void bindItems(List<ItemInfo> shortcuts, boolean forceAnimateIcons);
+        void bindScreens(IntArray orderedScreenIds);
+        void finishFirstPageBind(ViewOnDrawExecutor executor);
+        void finishBindingItems(int pageBoundFirst);
+        void preAddApps();
+        void bindAppsAdded(IntArray newScreens,
+                ArrayList<ItemInfo> addNotAnimated, ArrayList<ItemInfo> addAnimated);
+        void bindPromiseAppProgressUpdated(PromiseAppInfo app);
+        void bindWorkspaceItemsChanged(ArrayList<WorkspaceItemInfo> updated);
+        void bindWidgetsRestored(ArrayList<LauncherAppWidgetInfo> widgets);
+        void bindRestoreItemsChange(HashSet<ItemInfo> updates);
+        void bindWorkspaceComponentsRemoved(ItemInfoMatcher matcher);
+        void bindAllWidgets(ArrayList<WidgetListRowEntry> widgets);
+        void onPageBoundSynchronously(int page);
+        void executeOnNextDraw(ViewOnDrawExecutor executor);
+        void bindDeepShortcutMap(HashMap<ComponentKey, Integer> deepShortcutMap);
+
+        void bindAllApplications(AppInfo[] apps);
+    }
 }
diff --git a/src/com/android/launcher3/model/CacheDataUpdatedTask.java b/src/com/android/launcher3/model/CacheDataUpdatedTask.java
index 7852444..c1c8be3 100644
--- a/src/com/android/launcher3/model/CacheDataUpdatedTask.java
+++ b/src/com/android/launcher3/model/CacheDataUpdatedTask.java
@@ -18,14 +18,10 @@
 import android.content.ComponentName;
 import android.os.UserHandle;
 
-import com.android.launcher3.AllAppsList;
-import com.android.launcher3.AppInfo;
 import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.LauncherAppState;
-import com.android.launcher3.LauncherModel.CallbackTask;
-import com.android.launcher3.LauncherModel.Callbacks;
 import com.android.launcher3.LauncherSettings;
 
 import java.util.ArrayList;
@@ -53,9 +49,9 @@
     public void execute(LauncherAppState app, BgDataModel dataModel, AllAppsList apps) {
         IconCache iconCache = app.getIconCache();
 
-        final ArrayList<AppInfo> updatedApps = new ArrayList<>();
 
         ArrayList<WorkspaceItemInfo> updatedShortcuts = new ArrayList<>();
+
         synchronized (dataModel) {
             for (ItemInfo info : dataModel.itemsIdMap) {
                 if (info instanceof WorkspaceItemInfo && mUser.equals(info.user)) {
@@ -69,18 +65,10 @@
                     }
                 }
             }
-            apps.updateIconsAndLabels(mPackages, mUser, updatedApps);
+            apps.updateIconsAndLabels(mPackages, mUser);
         }
         bindUpdatedWorkspaceItems(updatedShortcuts);
-
-        if (!updatedApps.isEmpty()) {
-            scheduleCallbackTask(new CallbackTask() {
-                @Override
-                public void execute(Callbacks callbacks) {
-                    callbacks.bindAppsAddedOrUpdated(updatedApps);
-                }
-            });
-        }
+        bindApplicationsIfNeeded();
     }
 
     public boolean isValidShortcut(WorkspaceItemInfo si) {
diff --git a/src/com/android/launcher3/model/LoaderTask.java b/src/com/android/launcher3/model/LoaderTask.java
index 7593a33..50e1d56 100644
--- a/src/com/android/launcher3/model/LoaderTask.java
+++ b/src/com/android/launcher3/model/LoaderTask.java
@@ -19,8 +19,9 @@
 import static com.android.launcher3.ItemInfoWithIcon.FLAG_DISABLED_LOCKED_USER;
 import static com.android.launcher3.ItemInfoWithIcon.FLAG_DISABLED_SAFEMODE;
 import static com.android.launcher3.ItemInfoWithIcon.FLAG_DISABLED_SUSPENDED;
-import static com.android.launcher3.compat.PackageInstallerCompat.getUserHandle;
 import static com.android.launcher3.model.LoaderResults.filterCurrentWorkspaceItems;
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+import static com.android.launcher3.util.PackageManagerHelper.isSystemApp;
 
 import android.appwidget.AppWidgetProviderInfo;
 import android.content.ComponentName;
@@ -32,7 +33,6 @@
 import android.content.pm.PackageInstaller;
 import android.content.pm.PackageInstaller.SessionInfo;
 import android.content.pm.ShortcutInfo;
-import android.os.Handler;
 import android.os.Process;
 import android.os.UserHandle;
 import android.text.TextUtils;
@@ -40,7 +40,6 @@
 import android.util.LongSparseArray;
 import android.util.MutableInt;
 
-import com.android.launcher3.AllAppsList;
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.FolderInfo;
 import com.android.launcher3.InstallShortcutReceiver;
@@ -58,7 +57,7 @@
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.folder.Folder;
-import com.android.launcher3.folder.FolderIconPreviewVerifier;
+import com.android.launcher3.folder.FolderGridOrganizer;
 import com.android.launcher3.icons.ComponentWithLabel;
 import com.android.launcher3.icons.ComponentWithLabel.ComponentCachingLogic;
 import com.android.launcher3.icons.IconCache;
@@ -67,9 +66,11 @@
 import com.android.launcher3.icons.cache.IconCacheUpdateHandler;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.provider.ImportDataTask;
+import com.android.launcher3.qsb.QsbContainerView;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
 import com.android.launcher3.shortcuts.ShortcutKey;
 import com.android.launcher3.util.ComponentKey;
+import com.android.launcher3.util.IOUtils;
 import com.android.launcher3.util.LooperIdleLock;
 import com.android.launcher3.util.MultiHashMap;
 import com.android.launcher3.util.PackageManagerHelper;
@@ -228,9 +229,10 @@
             mResults.bindWidgets();
 
             verifyNotStopped();
-            TraceHelper.partitionSection(TAG, "step 4.3: Update icon cache");
-            updateHandler.updateIcons(allWidgetsList, new ComponentCachingLogic(mApp.getContext()),
-                    mApp.getModel()::onWidgetLabelsUpdated);
+
+            TraceHelper.partitionSection(TAG, "step 4.3: save widgets in icon cache");
+            updateHandler.updateIcons(allWidgetsList, new ComponentCachingLogic(
+                    mApp.getContext(), true), mApp.getModel()::onWidgetLabelsUpdated);
 
             verifyNotStopped();
             TraceHelper.partitionSection(TAG, "step 5: Finish icon cache update");
@@ -320,9 +322,9 @@
 
                     // We can only query for shortcuts when the user is unlocked.
                     if (userUnlocked) {
-                        List<ShortcutInfo> pinnedShortcuts =
+                        DeepShortcutManager.QueryResult pinnedShortcuts =
                                 mShortcutManager.queryForPinnedShortcuts(null, user);
-                        if (mShortcutManager.wasLastCallSuccess()) {
+                        if (pinnedShortcuts.wasSuccess()) {
                             for (ShortcutInfo shortcut : pinnedShortcuts) {
                                 shortcutKeyToPinnedShortcuts.put(ShortcutKey.fromInfo(shortcut),
                                         shortcut);
@@ -387,7 +389,9 @@
                             boolean validTarget = TextUtils.isEmpty(targetPkg) ||
                                     mLauncherApps.isPackageEnabledForProfile(targetPkg, c.user);
 
-                            if (cn != null && validTarget) {
+                            // If it's a deep shortcut, we'll use pinned shortcuts to restore it
+                            if (cn != null && validTarget && c.itemType
+                                    != LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
                                 // If the apk is present and the shortcut points to a specific
                                 // component.
 
@@ -535,7 +539,7 @@
                                 info.spanX = 1;
                                 info.spanY = 1;
                                 info.runtimeStatusFlags |= disabledState;
-                                if (isSafeMode && !Utilities.isSystemApp(context, intent)) {
+                                if (isSafeMode && !isSystemApp(context, intent)) {
                                     info.runtimeStatusFlags |= FLAG_DISABLED_SAFEMODE;
                                 }
 
@@ -584,10 +588,19 @@
 
                             int appWidgetId = c.getInt(appWidgetIdIndex);
                             String savedProvider = c.getString(appWidgetProviderIndex);
+                            final ComponentName component;
 
-                            final ComponentName component =
-                                    ComponentName.unflattenFromString(savedProvider);
-
+                            boolean isSearchWidget = (c.getInt(optionsIndex)
+                                    & LauncherAppWidgetInfo.OPTION_SEARCH_WIDGET) != 0;
+                            if (isSearchWidget) {
+                                component  = QsbContainerView.getSearchComponentName(context);
+                                if (component == null) {
+                                    c.markDeleted("Discarding SearchWidget without packagename ");
+                                    continue;
+                                }
+                            } else {
+                                component = ComponentName.unflattenFromString(savedProvider);
+                            }
                             final boolean isIdValid = !c.hasRestoreFlag(
                                     LauncherAppWidgetInfo.FLAG_ID_NOT_VALID);
                             final boolean wasProviderReady = !c.hasRestoreFlag(
@@ -597,9 +610,7 @@
                                 widgetProvidersMap = mAppWidgetManager.getAllProvidersMap();
                             }
                             final AppWidgetProviderInfo provider = widgetProvidersMap.get(
-                                    new ComponentKey(
-                                            ComponentName.unflattenFromString(savedProvider),
-                                            c.user));
+                                    new ComponentKey(component, c.user));
 
                             final boolean isProviderReady = isValidProvider(provider);
                             if (!isSafeMode && !customWidget &&
@@ -665,6 +676,7 @@
                                 c.applyCommonProperties(appWidgetInfo);
                                 appWidgetInfo.spanX = c.getInt(spanXIndex);
                                 appWidgetInfo.spanY = c.getInt(spanYIndex);
+                                appWidgetInfo.options = c.getInt(optionsIndex);
                                 appWidgetInfo.user = c.user;
 
                                 if (appWidgetInfo.spanX <= 0 || appWidgetInfo.spanY <= 0) {
@@ -710,7 +722,7 @@
                     }
                 }
             } finally {
-                Utilities.closeSilently(c);
+                IOUtils.closeSilently(c);
             }
 
             // Break early if we've stopped loading
@@ -750,8 +762,8 @@
             }
 
             // Sort the folder items, update ranks, and make sure all preview items are high res.
-            FolderIconPreviewVerifier verifier =
-                    new FolderIconPreviewVerifier(mApp.getInvariantDeviceProfile());
+            FolderGridOrganizer verifier =
+                    new FolderGridOrganizer(mApp.getInvariantDeviceProfile());
             for (FolderInfo folder : mBgDataModel.folders) {
                 Collections.sort(folder.contents, Folder.ITEM_POS_COMPARATOR);
                 verifier.setFolderInfo(folder);
@@ -778,7 +790,7 @@
                         new SdCardAvailableReceiver(mApp, pendingPackages),
                         new IntentFilter(Intent.ACTION_BOOT_COMPLETED),
                         null,
-                        new Handler(LauncherModel.getWorkerLooper()));
+                        MODEL_EXECUTOR.getHandler());
             }
         }
     }
@@ -836,7 +848,7 @@
             }
         }
 
-        mBgAllAppsList.added = new ArrayList<>();
+        mBgAllAppsList.getAndResetChangeFlag();
         return allActivityList;
     }
 
diff --git a/src/com/android/launcher3/model/ModelPreload.java b/src/com/android/launcher3/model/ModelPreload.java
index b353810..2bd6cd4 100644
--- a/src/com/android/launcher3/model/ModelPreload.java
+++ b/src/com/android/launcher3/model/ModelPreload.java
@@ -18,7 +18,6 @@
 import android.content.Context;
 import android.util.Log;
 
-import com.android.launcher3.AllAppsList;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherModel;
 import com.android.launcher3.LauncherModel.ModelUpdateTask;
diff --git a/src/com/android/launcher3/model/ModelWriter.java b/src/com/android/launcher3/model/ModelWriter.java
index 4ce2f4b..bdf3a69 100644
--- a/src/com/android/launcher3/model/ModelWriter.java
+++ b/src/com/android/launcher3/model/ModelWriter.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.model;
 
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+
 import android.content.ContentProviderOperation;
 import android.content.ContentResolver;
 import android.content.ContentValues;
@@ -31,23 +33,25 @@
 import com.android.launcher3.LauncherAppWidgetHost;
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherModel;
-import com.android.launcher3.LauncherModel.Callbacks;
 import com.android.launcher3.LauncherProvider;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.LauncherSettings.Settings;
-import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.logging.FileLog;
+import com.android.launcher3.model.BgDataModel.Callbacks;
 import com.android.launcher3.util.ContentWriter;
 import com.android.launcher3.util.ItemInfoMatcher;
-import com.android.launcher3.util.LooperExecutor;
 
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.List;
 import java.util.concurrent.Executor;
 import java.util.function.Supplier;
+import java.util.stream.Collectors;
 
 /**
  * Class for handling model updates.
@@ -61,7 +65,6 @@
     private final BgDataModel mBgDataModel;
     private final Handler mUiHandler;
 
-    private final Executor mWorkerExecutor;
     private final boolean mHasVerticalHotseat;
     private final boolean mVerifyChanges;
 
@@ -74,7 +77,6 @@
         mContext = context;
         mModel = model;
         mBgDataModel = dataModel;
-        mWorkerExecutor = new LooperExecutor(LauncherModel.getWorkerLooper());
         mHasVerticalHotseat = hasVerticalHotseat;
         mVerifyChanges = verifyChanges;
         mUiHandler = new Handler(Looper.getMainLooper());
@@ -101,7 +103,7 @@
      */
     public void addOrMoveItemInDatabase(ItemInfo item,
             int container, int screenId, int cellX, int cellY) {
-        if (item.container == ItemInfo.NO_ID) {
+        if (item.id == ItemInfo.NO_ID) {
             // From all apps
             addItemToDatabase(item, container, screenId, cellX, cellY);
         } else {
@@ -194,7 +196,7 @@
         item.spanX = spanX;
         item.spanY = spanY;
 
-        mWorkerExecutor.execute(new UpdateItemRunnable(item, () ->
+        ((Executor) MODEL_EXECUTOR).execute(new UpdateItemRunnable(item, () ->
                 new ContentWriter(mContext)
                         .put(Favorites.CONTAINER, item.container)
                         .put(Favorites.CELLX, item.cellX)
@@ -209,7 +211,7 @@
      * Update an item to the database in a specified container.
      */
     public void updateItemInDatabase(ItemInfo item) {
-        mWorkerExecutor.execute(new UpdateItemRunnable(item, () -> {
+        ((Executor) MODEL_EXECUTOR).execute(new UpdateItemRunnable(item, () -> {
             ContentWriter writer = new ContentWriter(mContext);
             item.onAddToDatabase(writer);
             return writer;
@@ -229,7 +231,7 @@
 
         ModelVerifier verifier = new ModelVerifier();
         final StackTraceElement[] stackTrace = new Throwable().getStackTrace();
-        mWorkerExecutor.execute(() -> {
+        ((Executor) MODEL_EXECUTOR).execute(() -> {
             // Write the item on background thread, as some properties might have been updated in
             // the background.
             final ContentWriter writer = new ContentWriter(mContext);
@@ -263,9 +265,12 @@
     /**
      * Removes the specified items from the database
      */
-    public void deleteItemsFromDatabase(final Iterable<? extends ItemInfo> items) {
+    public void deleteItemsFromDatabase(final Collection<? extends ItemInfo> items) {
         ModelVerifier verifier = new ModelVerifier();
-
+        FileLog.d(TAG, "removing items from db " + items.stream().map(
+                (item) -> item.getTargetComponent() == null ? ""
+                        : item.getTargetComponent().getPackageName()).collect(
+                Collectors.joining(",")), new Exception());
         enqueueDeleteRunnable(() -> {
             for (ItemInfo item : items) {
                 final Uri uri = Favorites.getContentUri(item.id);
@@ -333,14 +338,14 @@
         if (mPreparingToUndo) {
             mDeleteRunnables.add(r);
         } else {
-            mWorkerExecutor.execute(r);
+            ((Executor) MODEL_EXECUTOR).execute(r);
         }
     }
 
     public void commitDelete() {
         mPreparingToUndo = false;
         for (Runnable runnable : mDeleteRunnables) {
-            mWorkerExecutor.execute(runnable);
+            ((Executor) MODEL_EXECUTOR).execute(runnable);
         }
         mDeleteRunnables.clear();
     }
diff --git a/src/com/android/launcher3/model/PackageInstallStateChangedTask.java b/src/com/android/launcher3/model/PackageInstallStateChangedTask.java
index 9fcab38..802cbc7 100644
--- a/src/com/android/launcher3/model/PackageInstallStateChangedTask.java
+++ b/src/com/android/launcher3/model/PackageInstallStateChangedTask.java
@@ -19,20 +19,18 @@
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 
-import com.android.launcher3.AllAppsList;
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherModel.CallbackTask;
-import com.android.launcher3.LauncherModel.Callbacks;
+import com.android.launcher3.model.BgDataModel.Callbacks;
 import com.android.launcher3.PromiseAppInfo;
 import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.compat.PackageInstallerCompat;
 import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo;
 import com.android.launcher3.util.InstantAppResolver;
 
-import java.util.ArrayList;
 import java.util.HashSet;
 
 /**
@@ -65,41 +63,11 @@
         }
 
         synchronized (apps) {
-            PromiseAppInfo updated = null;
-            final ArrayList<AppInfo> removed = new ArrayList<>();
-            for (int i=0; i < apps.size(); i++) {
-                final AppInfo appInfo = apps.get(i);
-                final ComponentName tgtComp = appInfo.getTargetComponent();
-                if (tgtComp != null && tgtComp.getPackageName().equals(mInstallInfo.packageName)) {
-                    if (appInfo instanceof PromiseAppInfo) {
-                        final PromiseAppInfo promiseAppInfo = (PromiseAppInfo) appInfo;
-                        if (mInstallInfo.state == PackageInstallerCompat.STATUS_INSTALLING) {
-                            promiseAppInfo.level = mInstallInfo.progress;
-                            updated = promiseAppInfo;
-                        } else if (mInstallInfo.state == PackageInstallerCompat.STATUS_FAILED) {
-                            apps.removePromiseApp(appInfo);
-                            removed.add(appInfo);
-                        }
-                    }
-                }
-            }
+            PromiseAppInfo updated = apps.updatePromiseInstallInfo(mInstallInfo);
             if (updated != null) {
-                final PromiseAppInfo updatedPromiseApp = updated;
-                scheduleCallbackTask(new CallbackTask() {
-                    @Override
-                    public void execute(Callbacks callbacks) {
-                        callbacks.bindPromiseAppProgressUpdated(updatedPromiseApp);
-                    }
-                });
+                scheduleCallbackTask(c -> c.bindPromiseAppProgressUpdated(updated));
             }
-            if (!removed.isEmpty()) {
-                scheduleCallbackTask(new CallbackTask() {
-                    @Override
-                    public void execute(Callbacks callbacks) {
-                        callbacks.bindAppInfosRemoved(removed);
-                    }
-                });
-            }
+            bindApplicationsIfNeeded();
         }
 
         synchronized (dataModel) {
diff --git a/src/com/android/launcher3/model/PackageItemInfo.java b/src/com/android/launcher3/model/PackageItemInfo.java
index baeaa94..3ef48cd 100644
--- a/src/com/android/launcher3/model/PackageItemInfo.java
+++ b/src/com/android/launcher3/model/PackageItemInfo.java
@@ -17,6 +17,7 @@
 package com.android.launcher3.model;
 
 import com.android.launcher3.ItemInfoWithIcon;
+import com.android.launcher3.LauncherSettings;
 
 /**
  * Represents a {@link Package} in the widget tray section.
@@ -30,10 +31,21 @@
 
     public PackageItemInfo(String packageName) {
         this.packageName = packageName;
+        this.itemType = LauncherSettings.Favorites.ITEM_TYPE_NON_ACTIONABLE;
+    }
+
+    public PackageItemInfo(PackageItemInfo copy) {
+        this.packageName = copy.packageName;
+        this.itemType = LauncherSettings.Favorites.ITEM_TYPE_NON_ACTIONABLE;
     }
 
     @Override
     protected String dumpProperties() {
         return super.dumpProperties() + " packageName=" + packageName;
     }
+
+    @Override
+    public PackageItemInfo clone() {
+        return new PackageItemInfo(this);
+    }
 }
diff --git a/src/com/android/launcher3/model/PackageUpdatedTask.java b/src/com/android/launcher3/model/PackageUpdatedTask.java
index 2d1e94f..d6ebaaf 100644
--- a/src/com/android/launcher3/model/PackageUpdatedTask.java
+++ b/src/com/android/launcher3/model/PackageUpdatedTask.java
@@ -15,6 +15,8 @@
  */
 package com.android.launcher3.model;
 
+import static com.android.launcher3.WorkspaceItemInfo.FLAG_AUTOINSTALL_ICON;
+
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -23,23 +25,19 @@
 import android.os.UserHandle;
 import android.util.Log;
 
-import com.android.launcher3.AllAppsList;
-import com.android.launcher3.AppInfo;
-import com.android.launcher3.WorkspaceItemInfo;
-import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.InstallShortcutReceiver;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherAppWidgetInfo;
-import com.android.launcher3.LauncherModel.CallbackTask;
-import com.android.launcher3.LauncherModel.Callbacks;
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.SessionCommitReceiver;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.icons.BitmapInfo;
+import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.icons.LauncherIcons;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
@@ -49,6 +47,7 @@
 import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.PackageManagerHelper;
 import com.android.launcher3.util.PackageUserKey;
+import com.android.launcher3.util.SafeCloseable;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -101,6 +100,8 @@
         FlagOp flagOp = FlagOp.NO_OP;
         final HashSet<String> packageSet = new HashSet<>(Arrays.asList(packages));
         ItemInfoMatcher matcher = ItemInfoMatcher.ofPackages(packageSet, mUser);
+        final HashSet<ComponentName> removedComponents = new HashSet<>();
+
         switch (mOp) {
             case OP_ADD: {
                 for (int i = 0; i < N; i++) {
@@ -120,17 +121,21 @@
                 break;
             }
             case OP_UPDATE:
-                for (int i = 0; i < N; i++) {
-                    if (DEBUG) Log.d(TAG, "mAllAppsList.updatePackage " + packages[i]);
-                    iconCache.updateIconsForPkg(packages[i], mUser);
-                    appsList.updatePackage(context, packages[i], mUser);
-                    app.getWidgetCache().removePackage(packages[i], mUser);
+                try (SafeCloseable t =
+                             appsList.trackRemoves(a -> removedComponents.add(a.componentName))) {
+                    for (int i = 0; i < N; i++) {
+                        if (DEBUG) Log.d(TAG, "mAllAppsList.updatePackage " + packages[i]);
+                        iconCache.updateIconsForPkg(packages[i], mUser);
+                        appsList.updatePackage(context, packages[i], mUser);
+                        app.getWidgetCache().removePackage(packages[i], mUser);
+                    }
                 }
                 // Since package was just updated, the target must be available now.
                 flagOp = FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_NOT_AVAILABLE);
                 break;
             case OP_REMOVE: {
                 for (int i = 0; i < N; i++) {
+                    FileLog.d(TAG, "Removing app icon" + packages[i]);
                     iconCache.removeIconsForPkg(packages[i], mUser);
                 }
                 // Fall through
@@ -161,23 +166,7 @@
                 break;
         }
 
-        final ArrayList<AppInfo> addedOrModified = new ArrayList<>();
-        addedOrModified.addAll(appsList.added);
-        appsList.added.clear();
-        addedOrModified.addAll(appsList.modified);
-        appsList.modified.clear();
-        if (!addedOrModified.isEmpty()) {
-            scheduleCallbackTask((callbacks) -> callbacks.bindAppsAddedOrUpdated(addedOrModified));
-        }
-
-        final ArrayList<AppInfo> removedApps = new ArrayList<>(appsList.removed);
-        appsList.removed.clear();
-        final HashSet<ComponentName> removedComponents = new HashSet<>();
-        if (mOp == OP_UPDATE) {
-            for (AppInfo ai : removedApps) {
-                removedComponents.add(ai.componentName);
-            }
-        }
+        bindApplicationsIfNeeded();
 
         final IntSparseArrayMap<Boolean> removedShortcuts = new IntSparseArrayMap<>();
 
@@ -303,12 +292,7 @@
             }
 
             if (!widgets.isEmpty()) {
-                scheduleCallbackTask(new CallbackTask() {
-                    @Override
-                    public void execute(Callbacks callbacks) {
-                        callbacks.bindWidgetsRestored(widgets);
-                    }
-                });
+                scheduleCallbackTask(c -> c.bindWidgetsRestored(widgets));
             }
         }
 
@@ -339,16 +323,6 @@
             InstallShortcutReceiver.removeFromInstallQueue(context, removedPackages, mUser);
         }
 
-        if (!removedApps.isEmpty()) {
-            // Remove corresponding apps from All-Apps
-            scheduleCallbackTask(new CallbackTask() {
-                @Override
-                public void execute(Callbacks callbacks) {
-                    callbacks.bindAppInfosRemoved(removedApps);
-                }
-            });
-        }
-
         if (Utilities.ATLEAST_OREO && mOp == OP_ADD) {
             // Load widgets for the new package. Changes due to app updates are handled through
             // AppWidgetHost events, this is just to initialize the long-press options.
diff --git a/src/com/android/launcher3/model/ShortcutsChangedTask.java b/src/com/android/launcher3/model/ShortcutsChangedTask.java
index 8528228..6c358b1 100644
--- a/src/com/android/launcher3/model/ShortcutsChangedTask.java
+++ b/src/com/android/launcher3/model/ShortcutsChangedTask.java
@@ -19,7 +19,6 @@
 import android.content.pm.ShortcutInfo;
 import android.os.UserHandle;
 
-import com.android.launcher3.AllAppsList;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherSettings;
@@ -65,7 +64,7 @@
         for (ItemInfo itemInfo : dataModel.itemsIdMap) {
             if (itemInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
                 WorkspaceItemInfo si = (WorkspaceItemInfo) itemInfo;
-                if (si.getIntent().getPackage().equals(mPackageName) && si.user.equals(mUser)) {
+                if (mPackageName.equals(si.getIntent().getPackage()) && si.user.equals(mUser)) {
                     keyToShortcutInfo.addToList(ShortcutKey.fromItemInfo(si), si);
                     allIds.add(si.getDeepShortcutId());
                 }
diff --git a/src/com/android/launcher3/model/UserLockStateChangedTask.java b/src/com/android/launcher3/model/UserLockStateChangedTask.java
index 2cb256e..4b773d7 100644
--- a/src/com/android/launcher3/model/UserLockStateChangedTask.java
+++ b/src/com/android/launcher3/model/UserLockStateChangedTask.java
@@ -21,7 +21,6 @@
 import android.content.pm.ShortcutInfo;
 import android.os.UserHandle;
 
-import com.android.launcher3.AllAppsList;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherSettings;
@@ -37,7 +36,6 @@
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
-import java.util.List;
 
 /**
  * Task to handle changing of lock state of the user
@@ -58,9 +56,9 @@
 
         HashMap<ShortcutKey, ShortcutInfo> pinnedShortcuts = new HashMap<>();
         if (isUserUnlocked) {
-            List<ShortcutInfo> shortcuts =
+            DeepShortcutManager.QueryResult shortcuts =
                     deepShortcutManager.queryForPinnedShortcuts(null, mUser);
-            if (deepShortcutManager.wasLastCallSuccess()) {
+            if (shortcuts.wasSuccess()) {
                 for (ShortcutInfo shortcut : shortcuts) {
                     pinnedShortcuts.put(ShortcutKey.fromInfo(shortcut), shortcut);
                 }
diff --git a/src/com/android/launcher3/notification/NotificationItemView.java b/src/com/android/launcher3/notification/NotificationItemView.java
index 32410a6..021fb30 100644
--- a/src/com/android/launcher3/notification/NotificationItemView.java
+++ b/src/com/android/launcher3/notification/NotificationItemView.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.notification;
 
+import static com.android.launcher3.touch.SingleAxisSwipeDetector.HORIZONTAL;
+
 import android.app.Notification;
 import android.content.Context;
 import android.graphics.Color;
@@ -28,13 +30,11 @@
 import com.android.launcher3.R;
 import com.android.launcher3.graphics.IconPalette;
 import com.android.launcher3.popup.PopupContainerWithArrow;
-import com.android.launcher3.touch.SwipeDetector;
+import com.android.launcher3.touch.SingleAxisSwipeDetector;
 import com.android.launcher3.util.Themes;
 
 import java.util.List;
 
-import static com.android.launcher3.touch.SwipeDetector.HORIZONTAL;
-
 /**
  * Utility class to manage notification UI
  */
@@ -49,7 +49,7 @@
     private final TextView mHeaderCount;
     private final NotificationMainView mMainView;
     private final NotificationFooterLayout mFooter;
-    private final SwipeDetector mSwipeDetector;
+    private final SingleAxisSwipeDetector mSwipeDetector;
     private final View mIconView;
 
     private final View mHeader;
@@ -74,8 +74,8 @@
         mHeader = container.findViewById(R.id.header);
         mDivider = container.findViewById(R.id.divider);
 
-        mSwipeDetector = new SwipeDetector(mContext, mMainView, HORIZONTAL);
-        mSwipeDetector.setDetectableScrollConditions(SwipeDetector.DIRECTION_BOTH, false);
+        mSwipeDetector = new SingleAxisSwipeDetector(mContext, mMainView, HORIZONTAL);
+        mSwipeDetector.setDetectableScrollConditions(SingleAxisSwipeDetector.DIRECTION_BOTH, false);
         mMainView.setSwipeDetector(mSwipeDetector);
         mFooter.setContainer(this);
     }
diff --git a/src/com/android/launcher3/notification/NotificationListener.java b/src/com/android/launcher3/notification/NotificationListener.java
index e57a051..10378ee 100644
--- a/src/com/android/launcher3/notification/NotificationListener.java
+++ b/src/com/android/launcher3/notification/NotificationListener.java
@@ -16,6 +16,7 @@
 
 package com.android.launcher3.notification;
 
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 import static com.android.launcher3.util.SecureSettingsObserver.newNotificationSettingsObserver;
 
 import android.annotation.TargetApi;
@@ -31,7 +32,8 @@
 import android.util.Log;
 import android.util.Pair;
 
-import com.android.launcher3.LauncherModel;
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.util.IntSet;
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.util.SecureSettingsObserver;
@@ -43,8 +45,6 @@
 import java.util.List;
 import java.util.Map;
 
-import androidx.annotation.Nullable;
-
 /**
  * A {@link NotificationListenerService} that sends updates to its
  * {@link NotificationsChangedListener} when notifications are posted or canceled,
@@ -141,7 +141,7 @@
 
     public NotificationListener() {
         super();
-        mWorkerHandler = new Handler(LauncherModel.getWorkerLooper(), mWorkerCallback);
+        mWorkerHandler = new Handler(MODEL_EXECUTOR.getLooper(), mWorkerCallback);
         mUiHandler = new Handler(Looper.getMainLooper(), mUiCallback);
         sNotificationListenerInstance = this;
     }
diff --git a/src/com/android/launcher3/notification/NotificationMainView.java b/src/com/android/launcher3/notification/NotificationMainView.java
index 78627ec..b67adbb 100644
--- a/src/com/android/launcher3/notification/NotificationMainView.java
+++ b/src/com/android/launcher3/notification/NotificationMainView.java
@@ -38,8 +38,9 @@
 import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
 import com.android.launcher3.anim.AnimationSuccessListener;
+import com.android.launcher3.touch.BaseSwipeDetector;
 import com.android.launcher3.touch.OverScroll;
-import com.android.launcher3.touch.SwipeDetector;
+import com.android.launcher3.touch.SingleAxisSwipeDetector;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.util.Themes;
 
@@ -48,7 +49,7 @@
  * e.g. icon + title + text.
  */
 @TargetApi(Build.VERSION_CODES.N)
-public class NotificationMainView extends FrameLayout implements SwipeDetector.Listener {
+public class NotificationMainView extends FrameLayout implements SingleAxisSwipeDetector.Listener {
 
     private static FloatProperty<NotificationMainView> CONTENT_TRANSLATION =
             new FloatProperty<NotificationMainView>("contentTranslation") {
@@ -75,7 +76,7 @@
     private TextView mTextView;
     private View mIconView;
 
-    private SwipeDetector mSwipeDetector;
+    private SingleAxisSwipeDetector mSwipeDetector;
 
     public NotificationMainView(Context context) {
         this(context, null, 0);
@@ -107,7 +108,7 @@
         mIconView = findViewById(R.id.popup_item_icon);
     }
 
-    public void setSwipeDetector(SwipeDetector swipeDetector) {
+    public void setSwipeDetector(SingleAxisSwipeDetector swipeDetector) {
         mSwipeDetector = swipeDetector;
     }
 
@@ -173,7 +174,7 @@
                 LauncherLogProto.ItemType.NOTIFICATION);
     }
 
-    // SwipeDetector.Listener's
+    // SingleAxisSwipeDetector.Listener's
     @Override
     public void onDragStart(boolean start) { }
 
@@ -187,7 +188,7 @@
     }
 
     @Override
-    public void onDragEnd(float velocity, boolean fling) {
+    public void onDragEnd(float velocity) {
         final boolean willExit;
         final float endTranslation;
         final float startTranslation = mTextAndBackground.getTranslationX();
@@ -195,7 +196,7 @@
         if (!canChildBeDismissed()) {
             willExit = false;
             endTranslation = 0;
-        } else if (fling) {
+        } else if (mSwipeDetector.isFling(velocity)) {
             willExit = true;
             endTranslation = velocity < 0 ? - getWidth() : getWidth();
         } else if (Math.abs(startTranslation) > getWidth() / 2) {
@@ -206,7 +207,7 @@
             endTranslation = 0;
         }
 
-        long duration = SwipeDetector.calculateDuration(velocity,
+        long duration = BaseSwipeDetector.calculateDuration(velocity,
                 (endTranslation - startTranslation) / getWidth());
 
         mContentTranslateAnimator.removeAllListeners();
diff --git a/src/com/android/launcher3/popup/ArrowPopup.java b/src/com/android/launcher3/popup/ArrowPopup.java
index 28000b9..98f7fd8 100644
--- a/src/com/android/launcher3/popup/ArrowPopup.java
+++ b/src/com/android/launcher3/popup/ArrowPopup.java
@@ -360,10 +360,14 @@
         final TimeInterpolator revealInterpolator = ACCEL_DEACCEL;
 
         // Rectangular reveal.
+        mEndRect.set(0, 0, getMeasuredWidth(), getMeasuredHeight());
         final ValueAnimator revealAnim = createOpenCloseOutlineProvider()
                 .createRevealAnimator(this, false);
         revealAnim.setDuration(revealDuration);
         revealAnim.setInterpolator(revealInterpolator);
+        // Clip the popup to the initial outline while the notification dot and arrow animate.
+        revealAnim.start();
+        revealAnim.pause();
 
         ValueAnimator fadeIn = ValueAnimator.ofFloat(0, 1);
         fadeIn.setDuration(revealDuration + arrowDuration);
@@ -399,7 +403,6 @@
         if (!mIsOpen) {
             return;
         }
-        mEndRect.setEmpty();
         if (getOutlineProvider() instanceof RevealOutlineAnimation) {
             ((RevealOutlineAnimation) getOutlineProvider()).getOutline(mEndRect);
         }
@@ -471,9 +474,6 @@
 
         mStartRect.set(arrowCenterX - halfArrowWidth, arrowCenterY, arrowCenterX + halfArrowWidth,
                 arrowCenterY);
-        if (mEndRect.isEmpty()) {
-            mEndRect.set(0, 0, getMeasuredWidth(), getMeasuredHeight());
-        }
 
         return new RoundedRectRevealOutlineProvider
                 (arrowCornerRadius, mOutlineRadius, mStartRect, mEndRect);
diff --git a/src/com/android/launcher3/popup/PopupContainerWithArrow.java b/src/com/android/launcher3/popup/PopupContainerWithArrow.java
index 9857efe..e8ac1d4 100644
--- a/src/com/android/launcher3/popup/PopupContainerWithArrow.java
+++ b/src/com/android/launcher3/popup/PopupContainerWithArrow.java
@@ -24,6 +24,7 @@
 import static com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import static com.android.launcher3.userevent.nano.LauncherLogProto.ItemType;
 import static com.android.launcher3.userevent.nano.LauncherLogProto.Target;
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
 import android.animation.AnimatorSet;
 import android.animation.LayoutTransition;
@@ -51,7 +52,6 @@
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.ItemInfoWithIcon;
 import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherModel;
 import com.android.launcher3.R;
 import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
 import com.android.launcher3.accessibility.ShortcutMenuAccessibilityDelegate;
@@ -168,7 +168,10 @@
     }
 
     public OnClickListener getItemClickListener() {
-        return ItemClickHandler.INSTANCE;
+        return (view) -> {
+            ItemClickHandler.INSTANCE.onClick(view);
+            close(true);
+        };
     }
 
     @Override
@@ -311,8 +314,7 @@
         setLayoutTransition(new LayoutTransition());
 
         // Load the shortcuts on a background thread and update the container as it animates.
-        final Looper workerLooper = LauncherModel.getWorkerLooper();
-        new Handler(workerLooper).postAtFrontOfQueue(PopupPopulator.createUpdateRunnable(
+        MODEL_EXECUTOR.getHandler().postAtFrontOfQueue(PopupPopulator.createUpdateRunnable(
                 mLauncher, originalItemInfo, new Handler(Looper.getMainLooper()),
                 this, mShortcuts, notificationKeys));
     }
@@ -573,9 +575,12 @@
 
     @Override
     protected void closeComplete() {
+        PopupContainerWithArrow openPopup = getOpen(mLauncher);
+        if (openPopup == null || openPopup.mOriginalIcon != mOriginalIcon) {
+            mOriginalIcon.setTextVisibility(mOriginalIcon.shouldTextBeVisible());
+            mOriginalIcon.setForceHideDot(false);
+        }
         super.closeComplete();
-        mOriginalIcon.setTextVisibility(mOriginalIcon.shouldTextBeVisible());
-        mOriginalIcon.setForceHideDot(false);
     }
 
     @Override
diff --git a/src/com/android/launcher3/popup/SystemShortcut.java b/src/com/android/launcher3/popup/SystemShortcut.java
index 78bd81b..a87b7b8 100644
--- a/src/com/android/launcher3/popup/SystemShortcut.java
+++ b/src/com/android/launcher3/popup/SystemShortcut.java
@@ -1,14 +1,11 @@
 package com.android.launcher3.popup;
 
-import static com.android.launcher3.userevent.nano.LauncherLogProto.Action;
-import static com.android.launcher3.userevent.nano.LauncherLogProto.ControlType;
 
 import android.app.ActivityOptions;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Rect;
 import android.graphics.drawable.Icon;
-import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
 import android.view.View;
@@ -20,23 +17,30 @@
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.R;
 import com.android.launcher3.WorkspaceItemInfo;
+import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.model.AppLaunchTracker;
 import com.android.launcher3.model.WidgetItem;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ControlType;
 import com.android.launcher3.util.InstantAppResolver;
 import com.android.launcher3.util.PackageManagerHelper;
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.widget.WidgetsBottomSheet;
 
 import java.util.List;
-
 /**
  * Represents a system shortcut for a given app. The shortcut should have a label and icon, and an
  * onClickListener that depends on the item that the shortcut services.
  *
  * Example system shortcuts, defined as inner classes, include Widgets and AppInfo.
+ * @param <T>
  */
-public abstract class SystemShortcut<T extends BaseDraggingActivity> extends ItemInfo {
+public abstract class SystemShortcut<T extends BaseDraggingActivity>
+        extends ItemInfo {
     private final int mIconResId;
     private final int mLabelResId;
     private final Icon mIcon;
@@ -202,6 +206,27 @@
         }
     }
 
+    public static class DismissPrediction extends SystemShortcut<Launcher> {
+        public DismissPrediction() {
+            super(R.drawable.ic_remove_no_shadow, R.string.dismiss_prediction_label);
+        }
+
+        @Override
+        public View.OnClickListener getOnClickListener(Launcher activity, ItemInfo itemInfo) {
+            if (!FeatureFlags.ENABLE_PREDICTION_DISMISS.get()) return null;
+            if (itemInfo.container != LauncherSettings.Favorites.CONTAINER_PREDICTION) return null;
+            return (view) -> {
+                PopupContainerWithArrow.closeAllOpenViews(activity);
+                activity.getUserEventDispatcher().logActionOnControl(Action.Touch.TAP,
+                        ControlType.DISMISS_PREDICTION, ContainerType.DEEPSHORTCUTS);
+                AppLaunchTracker.INSTANCE.get(view.getContext())
+                        .onDismissApp(itemInfo.getTargetComponent(),
+                                itemInfo.user,
+                                AppLaunchTracker.CONTAINER_PREDICTIONS);
+            };
+        }
+    }
+
     protected static void dismissTaskMenuView(BaseDraggingActivity activity) {
         AbstractFloatingView.closeOpenViews(activity, true,
             AbstractFloatingView.TYPE_ALL & ~AbstractFloatingView.TYPE_REBIND_SAFE);
diff --git a/src/com/android/launcher3/popup/SystemShortcutFactory.java b/src/com/android/launcher3/popup/SystemShortcutFactory.java
index 37a2092..dfcc2f8 100644
--- a/src/com/android/launcher3/popup/SystemShortcutFactory.java
+++ b/src/com/android/launcher3/popup/SystemShortcutFactory.java
@@ -39,7 +39,9 @@
     @SuppressWarnings("unused")
     public SystemShortcutFactory() {
         this(new SystemShortcut.AppInfo(),
-                new SystemShortcut.Widgets(), new SystemShortcut.Install());
+                new SystemShortcut.Widgets(),
+                new SystemShortcut.Install(),
+                new SystemShortcut.DismissPrediction());
     }
 
     protected SystemShortcutFactory(SystemShortcut... shortcuts) {
@@ -53,6 +55,7 @@
                 systemShortcuts.add(systemShortcut);
             }
         }
+
         return systemShortcuts;
     }
 }
diff --git a/src/com/android/launcher3/provider/ImportDataTask.java b/src/com/android/launcher3/provider/ImportDataTask.java
index 7b62f53..970a03e 100644
--- a/src/com/android/launcher3/provider/ImportDataTask.java
+++ b/src/com/android/launcher3/provider/ImportDataTask.java
@@ -42,7 +42,6 @@
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.LauncherSettings.Settings;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.Workspace;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
@@ -50,6 +49,7 @@
 import com.android.launcher3.model.GridSizeMigrationTask;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSparseArrayMap;
+import com.android.launcher3.util.PackageManagerHelper;
 
 import java.net.URISyntaxException;
 import java.util.ArrayList;
@@ -223,7 +223,7 @@
                     case Favorites.ITEM_TYPE_SHORTCUT:
                     case Favorites.ITEM_TYPE_APPLICATION: {
                         intent = Intent.parseUri(c.getString(intentIndex), 0);
-                        if (Utilities.isLauncherAppTarget(intent)) {
+                        if (PackageManagerHelper.isLauncherAppTarget(intent)) {
                             type = Favorites.ITEM_TYPE_APPLICATION;
                         } else {
                             values.put(Favorites.ICON_PACKAGE, c.getString(iconPackageIndex));
diff --git a/src/com/android/launcher3/provider/RestoreDbTask.java b/src/com/android/launcher3/provider/RestoreDbTask.java
index d643a0b..fb33551 100644
--- a/src/com/android/launcher3/provider/RestoreDbTask.java
+++ b/src/com/android/launcher3/provider/RestoreDbTask.java
@@ -16,8 +16,6 @@
 
 package com.android.launcher3.provider;
 
-import static com.android.launcher3.Utilities.getIntArrayFromString;
-import static com.android.launcher3.Utilities.getStringFromIntArray;
 import static com.android.launcher3.provider.LauncherDbUtils.dropTable;
 
 import android.app.backup.BackupManager;
@@ -40,6 +38,7 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.provider.LauncherDbUtils.SQLiteTransaction;
+import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.LogConfig;
 
 import java.io.InvalidObjectException;
@@ -240,8 +239,8 @@
         SharedPreferences prefs = Utilities.getPrefs(context);
         if (prefs.contains(APPWIDGET_OLD_IDS) && prefs.contains(APPWIDGET_IDS)) {
             AppWidgetsRestoredReceiver.restoreAppWidgetIds(context,
-                    getIntArrayFromString(prefs.getString(APPWIDGET_OLD_IDS, "")),
-                    getIntArrayFromString(prefs.getString(APPWIDGET_IDS, "")));
+                    IntArray.fromConcatString(prefs.getString(APPWIDGET_OLD_IDS, "")).toArray(),
+                    IntArray.fromConcatString(prefs.getString(APPWIDGET_IDS, "")).toArray());
         } else {
             FileLog.d(TAG, "No app widget ids to restore.");
         }
@@ -253,8 +252,8 @@
     public static void setRestoredAppWidgetIds(Context context, @NonNull int[] oldIds,
             @NonNull int[] newIds) {
         Utilities.getPrefs(context).edit()
-                .putString(APPWIDGET_OLD_IDS, getStringFromIntArray(oldIds))
-                .putString(APPWIDGET_IDS, getStringFromIntArray(newIds))
+                .putString(APPWIDGET_OLD_IDS, IntArray.wrap(oldIds).toConcatString())
+                .putString(APPWIDGET_IDS, IntArray.wrap(newIds).toConcatString())
                 .commit();
     }
 
diff --git a/src/com/android/launcher3/qsb/QsbContainerView.java b/src/com/android/launcher3/qsb/QsbContainerView.java
index 857ea05..0eb4285 100644
--- a/src/com/android/launcher3/qsb/QsbContainerView.java
+++ b/src/com/android/launcher3/qsb/QsbContainerView.java
@@ -32,12 +32,16 @@
 import android.content.Intent;
 import android.graphics.Rect;
 import android.os.Bundle;
+import android.provider.Settings;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.AppWidgetResizeFrame;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherAppState;
@@ -55,6 +59,74 @@
  */
 public class QsbContainerView extends FrameLayout {
 
+    public static final String SEARCH_PROVIDER_SETTINGS_KEY = "SEARCH_PROVIDER_PACKAGE_NAME";
+
+    /**
+     * Returns the package name for user configured search provider or from searchManager
+     * @param context
+     * @return String
+     */
+    @Nullable
+    public static String getSearchWidgetPackageName(@NonNull Context context) {
+        String providerPkg = Settings.Global.getString(context.getContentResolver(),
+                SEARCH_PROVIDER_SETTINGS_KEY);
+        if (providerPkg == null) {
+            SearchManager searchManager = context.getSystemService(SearchManager.class);
+            ComponentName componentName = searchManager.getGlobalSearchActivity();
+            if (componentName != null) {
+                providerPkg = searchManager.getGlobalSearchActivity().getPackageName();
+            }
+        }
+        return providerPkg;
+    }
+
+    /**
+     * returns it's AppWidgetProviderInfo using package name from getSearchWidgetPackageName
+     * @param context
+     * @return AppWidgetProviderInfo
+     */
+    @Nullable
+    public static AppWidgetProviderInfo getSearchWidgetProviderInfo(@NonNull Context context) {
+        String providerPkg = getSearchWidgetPackageName(context);
+        if (providerPkg == null) {
+            return null;
+        }
+
+        AppWidgetProviderInfo defaultWidgetForSearchPackage = null;
+        AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
+        for (AppWidgetProviderInfo info :
+                appWidgetManager.getInstalledProvidersForPackage(providerPkg, null)) {
+            if (info.provider.getPackageName().equals(providerPkg) && info.configure == null) {
+                if ((info.widgetCategory
+                        & AppWidgetProviderInfo.WIDGET_CATEGORY_SEARCHBOX) != 0) {
+                    return info;
+                } else if (defaultWidgetForSearchPackage == null) {
+                    defaultWidgetForSearchPackage = info;
+                }
+            }
+        }
+        return defaultWidgetForSearchPackage;
+    }
+
+    /**
+     * returns componentName for searchWidget if package name is known.
+     */
+    @Nullable
+    public static ComponentName getSearchComponentName(@NonNull  Context context) {
+        AppWidgetProviderInfo providerInfo =
+                QsbContainerView.getSearchWidgetProviderInfo(context);
+        if (providerInfo != null) {
+            return providerInfo.provider;
+        } else {
+            String pkgName = QsbContainerView.getSearchWidgetPackageName(context);
+            if (pkgName != null) {
+                //we don't know the class name yet. we'll put the package name as placeholder
+                return new ComponentName(pkgName, pkgName);
+            }
+            return null;
+        }
+    }
+
     public QsbContainerView(Context context) {
         super(context);
     }
@@ -101,7 +173,7 @@
 
         protected QsbWidgetHost createHost() {
             return new QsbWidgetHost(getContext(), QSB_WIDGET_HOST_ID,
-                    (c) -> new QsbWidgetHostView(c));
+                    (c) -> new QsbWidgetHostView(c), this::rebindFragment);
         }
 
         private FrameLayout mWrapper;
@@ -111,9 +183,9 @@
                 LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 
             mWrapper = new FrameLayout(getContext());
-
             // Only add the view when enabled
             if (isQsbEnabled()) {
+                mQsbWidgetHost.startListening();
                 mWrapper.addView(createQsb(mWrapper));
             }
             return mWrapper;
@@ -155,7 +227,8 @@
             }
 
             if (isWidgetBound) {
-                mQsb = (QsbWidgetHostView) mQsbWidgetHost.createView(context, widgetId, mWidgetInfo);
+                mQsb = (QsbWidgetHostView) mQsbWidgetHost.createView(context, widgetId,
+                        mWidgetInfo);
                 mQsb.setId(R.id.qsb_widget);
 
                 if (!isInPreviewMode()) {
@@ -163,7 +236,6 @@
                             .getAppWidgetOptions(widgetId), opts)) {
                         mQsb.updateAppWidgetOptions(opts);
                     }
-                    mQsbWidgetHost.startListening();
                 }
                 return mQsb;
             }
@@ -246,43 +318,32 @@
             return v;
         }
 
+
         /**
          * Returns a widget with category {@link AppWidgetProviderInfo#WIDGET_CATEGORY_SEARCHBOX}
-         * provided by the same package which is set to be global search activity.
+         * provided by the package from getSearchProviderPackageName
          * If widgetCategory is not supported, or no such widget is found, returns the first widget
          * provided by the package.
          */
         protected AppWidgetProviderInfo getSearchWidgetProvider() {
-            SearchManager searchManager =
-                    (SearchManager) getContext().getSystemService(Context.SEARCH_SERVICE);
-            ComponentName searchComponent = searchManager.getGlobalSearchActivity();
-            if (searchComponent == null) return null;
-            String providerPkg = searchComponent.getPackageName();
-
-            AppWidgetProviderInfo defaultWidgetForSearchPackage = null;
-
-            AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(getContext());
-            for (AppWidgetProviderInfo info : appWidgetManager.getInstalledProviders()) {
-                if (info.provider.getPackageName().equals(providerPkg) && info.configure == null) {
-                    if ((info.widgetCategory
-                            & AppWidgetProviderInfo.WIDGET_CATEGORY_SEARCHBOX) != 0) {
-                        return info;
-                    } else if (defaultWidgetForSearchPackage == null) {
-                        defaultWidgetForSearchPackage = info;
-                    }
-                }
-            }
-            return defaultWidgetForSearchPackage;
+            return getSearchWidgetProviderInfo(getContext());
         }
     }
 
     public static class QsbWidgetHost extends AppWidgetHost {
 
         private final WidgetViewFactory mViewFactory;
+        private final WidgetProvidersUpdateCallback mWidgetsUpdateCallback;
 
-        public QsbWidgetHost(Context context, int hostId, WidgetViewFactory viewFactory) {
+        public QsbWidgetHost(Context context, int hostId, WidgetViewFactory viewFactory,
+                WidgetProvidersUpdateCallback widgetProvidersUpdateCallback) {
             super(context, hostId);
             mViewFactory = viewFactory;
+            mWidgetsUpdateCallback = widgetProvidersUpdateCallback;
+        }
+
+        public QsbWidgetHost(Context context, int hostId, WidgetViewFactory viewFactory) {
+            this(context, hostId, viewFactory, null);
         }
 
         @Override
@@ -290,6 +351,14 @@
                 Context context, int appWidgetId, AppWidgetProviderInfo appWidget) {
             return mViewFactory.newView(context);
         }
+
+        @Override
+        protected void onProvidersChanged() {
+            super.onProvidersChanged();
+            if (mWidgetsUpdateCallback != null) {
+                mWidgetsUpdateCallback.onProvidersUpdated();
+            }
+        }
     }
 
     public interface WidgetViewFactory {
@@ -298,6 +367,17 @@
     }
 
     /**
+     * Callback interface for packages list update.
+     */
+    @FunctionalInterface
+    public interface WidgetProvidersUpdateCallback {
+        /**
+         * Gets called when widget providers list changes
+         */
+        void onProvidersUpdated();
+    }
+
+    /**
      * Returns true if {@param original} contains all entries defined in {@param updates} and
      * have the same value.
      * The comparison uses {@link Object#equals(Object)} to compare the values.
@@ -316,4 +396,5 @@
         }
         return true;
     }
+
 }
diff --git a/src/com/android/launcher3/settings/SettingsActivity.java b/src/com/android/launcher3/settings/SettingsActivity.java
index 18b6094..8d2db78 100644
--- a/src/com/android/launcher3/settings/SettingsActivity.java
+++ b/src/com/android/launcher3/settings/SettingsActivity.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.settings;
 
+import static androidx.core.view.accessibility.AccessibilityNodeInfoCompat.ACTION_ACCESSIBILITY_FOCUS;
+
 import static com.android.launcher3.SessionCommitReceiver.ADD_ICON_PREFERENCE_KEY;
 import static com.android.launcher3.states.RotationHelper.ALLOW_ROTATION_PREFERENCE_KEY;
 import static com.android.launcher3.states.RotationHelper.getAllowRotationDefaultValue;
@@ -32,14 +34,7 @@
 import android.provider.Settings;
 import android.text.TextUtils;
 
-import com.android.launcher3.LauncherFiles;
-import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
-import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.graphics.GridOptionsProvider;
-import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
-import com.android.launcher3.util.SecureSettingsObserver;
-
+import androidx.annotation.NonNull;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceFragment;
 import androidx.preference.PreferenceFragment.OnPreferenceStartFragmentCallback;
@@ -48,6 +43,14 @@
 import androidx.preference.PreferenceScreen;
 import androidx.recyclerview.widget.RecyclerView;
 
+import com.android.launcher3.LauncherFiles;
+import com.android.launcher3.R;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.graphics.GridOptionsProvider;
+import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
+import com.android.launcher3.util.SecureSettingsObserver;
+
 /**
  * Settings activity for Launcher. Currently implements the following setting: Allow rotation
  */
@@ -248,6 +251,8 @@
                 if (highlighter != null) {
                     getView().postDelayed(highlighter, DELAY_HIGHLIGHT_DURATION_MILLIS);
                     mPreferenceHighlighted = true;
+                } else {
+                    requestAccessibilityFocus(getListView());
                 }
             }
         }
@@ -268,6 +273,15 @@
             return position >= 0 ? new PreferenceHighlighter(list, position) : null;
         }
 
+        private void requestAccessibilityFocus(@NonNull final RecyclerView rv) {
+            rv.post(() -> {
+                if (!rv.hasFocus() && rv.getChildCount() > 0) {
+                    rv.getChildAt(0)
+                            .performAccessibilityAction(ACTION_ACCESSIBILITY_FOCUS, null);
+                }
+            });
+        }
+
         @Override
         public void onDestroy() {
             if (mNotificationDotsObserver != null) {
diff --git a/src/com/android/launcher3/states/InternalStateHandler.java b/src/com/android/launcher3/states/InternalStateHandler.java
index c6370c5..a23cd6d 100644
--- a/src/com/android/launcher3/states/InternalStateHandler.java
+++ b/src/com/android/launcher3/states/InternalStateHandler.java
@@ -15,6 +15,8 @@
  */
 package com.android.launcher3.states;
 
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+
 import android.content.Intent;
 import android.os.Binder;
 import android.os.Bundle;
@@ -22,8 +24,7 @@
 
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherAppState;
-import com.android.launcher3.LauncherModel.Callbacks;
-import com.android.launcher3.MainThreadExecutor;
+import com.android.launcher3.model.BgDataModel.Callbacks;
 
 import java.lang.ref.WeakReference;
 
@@ -94,16 +95,12 @@
     private static class Scheduler implements Runnable {
 
         private WeakReference<InternalStateHandler> mPendingHandler = new WeakReference<>(null);
-        private MainThreadExecutor mMainThreadExecutor;
 
         public void schedule(InternalStateHandler handler) {
             synchronized (this) {
                 mPendingHandler = new WeakReference<>(handler);
-                if (mMainThreadExecutor == null) {
-                    mMainThreadExecutor = new MainThreadExecutor();
-                }
             }
-            mMainThreadExecutor.execute(this);
+            MAIN_EXECUTOR.execute(this);
         }
 
         @Override
diff --git a/src/com/android/launcher3/testing/TestInformationHandler.java b/src/com/android/launcher3/testing/TestInformationHandler.java
index 9965572..c6de9ca 100644
--- a/src/com/android/launcher3/testing/TestInformationHandler.java
+++ b/src/com/android/launcher3/testing/TestInformationHandler.java
@@ -17,6 +17,8 @@
 
 import static android.graphics.Bitmap.Config.ARGB_8888;
 
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Color;
@@ -29,7 +31,6 @@
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherModel;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.R;
 import com.android.launcher3.allapps.AllAppsStore;
 import com.android.launcher3.util.ResourceBasedOverride;
@@ -96,20 +97,20 @@
                 break;
 
             case TestProtocol.REQUEST_FREEZE_APP_LIST:
-                new MainThreadExecutor().execute(() ->
+                MAIN_EXECUTOR.execute(() ->
                         mLauncher.getAppsView().getAppsStore().enableDeferUpdates(
                                 AllAppsStore.DEFER_UPDATES_TEST));
                 break;
 
             case TestProtocol.REQUEST_UNFREEZE_APP_LIST:
-                new MainThreadExecutor().execute(() ->
+                MAIN_EXECUTOR.execute(() ->
                         mLauncher.getAppsView().getAppsStore().disableDeferUpdates(
                                 AllAppsStore.DEFER_UPDATES_TEST));
                 break;
 
             case TestProtocol.REQUEST_APP_LIST_FREEZE_FLAGS: {
                 try {
-                    final int deferUpdatesFlags = new MainThreadExecutor().submit(() ->
+                    final int deferUpdatesFlags = MAIN_EXECUTOR.submit(() ->
                             mLauncher.getAppsView().getAppsStore().getDeferUpdatesFlags()).get();
                     response.putInt(TestProtocol.TEST_INFO_RESPONSE_FIELD,
                             deferUpdatesFlags);
@@ -150,6 +151,12 @@
                 mLeaks.add(bitmap);
                 break;
             }
+
+            case TestProtocol.REQUEST_ICON_HEIGHT: {
+                response.putInt(TestProtocol.TEST_INFO_RESPONSE_FIELD,
+                        mDeviceProfile.allAppsCellHeightPx);
+                break;
+            }
         }
         return response;
     }
@@ -158,4 +165,5 @@
         final LauncherModel model = LauncherAppState.getInstance(mContext).getModel();
         return model.getCallback() == null || model.isModelLoaded();
     }
-}
\ No newline at end of file
+}
+
diff --git a/src/com/android/launcher3/testing/TestProtocol.java b/src/com/android/launcher3/testing/TestProtocol.java
index 62bb564..07ddbdc 100644
--- a/src/com/android/launcher3/testing/TestProtocol.java
+++ b/src/com/android/launcher3/testing/TestProtocol.java
@@ -66,6 +66,8 @@
             "all-apps-to-overview-swipe-height";
     public static final String REQUEST_HOME_TO_ALL_APPS_SWIPE_HEIGHT =
             "home-to-all-apps-swipe-height";
+    public static final String REQUEST_ICON_HEIGHT =
+            "icon-height";
     public static final String REQUEST_HOTSEAT_TOP = "hotseat-top";
     public static final String REQUEST_IS_LAUNCHER_INITIALIZED = "is-launcher-initialized";
     public static final String REQUEST_FREEZE_APP_LIST = "freeze-app-list";
diff --git a/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java b/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java
index c5ba5ba..f40f976 100644
--- a/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java
+++ b/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java
@@ -53,7 +53,7 @@
  * TouchController for handling state changes
  */
 public abstract class AbstractStateChangeTouchController
-        implements TouchController, SwipeDetector.Listener {
+        implements TouchController, SingleAxisSwipeDetector.Listener {
 
     // Progress after which the transition is assumed to be a success in case user does not fling
     public static final float SUCCESS_TRANSITION_PROGRESS = 0.5f;
@@ -65,8 +65,8 @@
     protected final long ATOMIC_DURATION = getAtomicDuration();
 
     protected final Launcher mLauncher;
-    protected final SwipeDetector mDetector;
-    protected final SwipeDetector.Direction mSwipeDirection;
+    protected final SingleAxisSwipeDetector mDetector;
+    protected final SingleAxisSwipeDetector.Direction mSwipeDirection;
 
     private boolean mNoIntercept;
     private boolean mIsLogContainerSet;
@@ -101,9 +101,9 @@
 
     private float mAtomicComponentsStartProgress;
 
-    public AbstractStateChangeTouchController(Launcher l, SwipeDetector.Direction dir) {
+    public AbstractStateChangeTouchController(Launcher l, SingleAxisSwipeDetector.Direction dir) {
         mLauncher = l;
-        mDetector = new SwipeDetector(l, this, dir);
+        mDetector = new SingleAxisSwipeDetector(l, this, dir);
         mSwipeDirection = dir;
     }
 
@@ -127,7 +127,7 @@
             boolean ignoreSlopWhenSettling = false;
 
             if (mCurrentAnimation != null) {
-                directionsToDetectScroll = SwipeDetector.DIRECTION_BOTH;
+                directionsToDetectScroll = SingleAxisSwipeDetector.DIRECTION_BOTH;
                 ignoreSlopWhenSettling = true;
             } else {
                 directionsToDetectScroll = getSwipeDirection();
@@ -152,10 +152,10 @@
         LauncherState fromState = mLauncher.getStateManager().getState();
         int swipeDirection = 0;
         if (getTargetState(fromState, true /* isDragTowardPositive */) != fromState) {
-            swipeDirection |= SwipeDetector.DIRECTION_POSITIVE;
+            swipeDirection |= SingleAxisSwipeDetector.DIRECTION_POSITIVE;
         }
         if (getTargetState(fromState, false /* isDragTowardPositive */) != fromState) {
-            swipeDirection |= SwipeDetector.DIRECTION_NEGATIVE;
+            swipeDirection |= SingleAxisSwipeDetector.DIRECTION_NEGATIVE;
         }
         return swipeDirection;
     }
@@ -369,7 +369,8 @@
     }
 
     @Override
-    public void onDragEnd(float velocity, boolean fling) {
+    public void onDragEnd(float velocity) {
+        boolean fling = mDetector.isFling(velocity);
         final int logAction = fling ? Touch.FLING : Touch.SWIPE;
 
         boolean blockedFling = fling && mFlingBlockCheck.isBlocked();
@@ -406,16 +407,13 @@
             } else {
                 startProgress = Utilities.boundToRange(progress
                         + velocity * getSingleFrameMs(mLauncher) * mProgressMultiplier, 0f, 1f);
-                duration = SwipeDetector.calculateDuration(velocity,
+                duration = BaseSwipeDetector.calculateDuration(velocity,
                         endProgress - Math.max(progress, 0)) * durationMultiplier;
             }
         } else {
             // Let the state manager know that the animation didn't go to the target state,
             // but don't cancel ourselves (we already clean up when the animation completes).
-            Runnable onCancel = mCurrentAnimation.getOnCancelRunnable();
-            mCurrentAnimation.setOnCancelRunnable(null);
-            mCurrentAnimation.dispatchOnCancel();
-            mCurrentAnimation.setOnCancelRunnable(onCancel);
+            mCurrentAnimation.dispatchOnCancelWithoutCancelRunnable();
 
             endProgress = 0;
             if (progress <= 0) {
@@ -424,7 +422,7 @@
             } else {
                 startProgress = Utilities.boundToRange(progress
                         + velocity * getSingleFrameMs(mLauncher) * mProgressMultiplier, 0f, 1f);
-                duration = SwipeDetector.calculateDuration(velocity,
+                duration = BaseSwipeDetector.calculateDuration(velocity,
                         Math.min(progress, 1) - endProgress) * durationMultiplier;
             }
         }
diff --git a/src/com/android/launcher3/touch/BaseSwipeDetector.java b/src/com/android/launcher3/touch/BaseSwipeDetector.java
new file mode 100644
index 0000000..12ca5ee
--- /dev/null
+++ b/src/com/android/launcher3/touch/BaseSwipeDetector.java
@@ -0,0 +1,268 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.touch;
+
+import static android.view.MotionEvent.INVALID_POINTER_ID;
+
+import android.graphics.PointF;
+import android.util.Log;
+import android.view.MotionEvent;
+import android.view.VelocityTracker;
+import android.view.ViewConfiguration;
+
+import androidx.annotation.NonNull;
+
+/**
+ * Scroll/drag/swipe gesture detector.
+ *
+ * Definition of swipe is different from android system in that this detector handles
+ * 'swipe to dismiss', 'swiping up/down a container' but also keeps scrolling state before
+ * swipe action happens.
+ *
+ * @see SingleAxisSwipeDetector
+ * @see BothAxesSwipeDetector
+ */
+public abstract class BaseSwipeDetector {
+
+    private static final boolean DBG = false;
+    private static final String TAG = "BaseSwipeDetector";
+    private static final float ANIMATION_DURATION = 1200;
+    /** The minimum release velocity in pixels per millisecond that triggers fling.*/
+    private static final float RELEASE_VELOCITY_PX_MS = 1.0f;
+    private static final PointF sTempPoint = new PointF();
+
+    private final PointF mDownPos = new PointF();
+    private final PointF mLastPos = new PointF();
+    protected final boolean mIsRtl;
+    protected final float mTouchSlop;
+    protected final float mMaxVelocity;
+
+    private int mActivePointerId = INVALID_POINTER_ID;
+    private VelocityTracker mVelocityTracker;
+    private PointF mLastDisplacement = new PointF();
+    private PointF mDisplacement = new PointF();
+    protected PointF mSubtractDisplacement = new PointF();
+    private ScrollState mState = ScrollState.IDLE;
+
+    protected boolean mIgnoreSlopWhenSettling;
+
+    private enum ScrollState {
+        IDLE,
+        DRAGGING,      // onDragStart, onDrag
+        SETTLING       // onDragEnd
+    }
+
+    protected BaseSwipeDetector(@NonNull ViewConfiguration config, boolean isRtl) {
+        mTouchSlop = config.getScaledTouchSlop();
+        mMaxVelocity = config.getScaledMaximumFlingVelocity();
+        mIsRtl = isRtl;
+    }
+
+    public static long calculateDuration(float velocity, float progressNeeded) {
+        // TODO: make these values constants after tuning.
+        float velocityDivisor = Math.max(2f, Math.abs(0.5f * velocity));
+        float travelDistance = Math.max(0.2f, progressNeeded);
+        long duration = (long) Math.max(100, ANIMATION_DURATION / velocityDivisor * travelDistance);
+        if (DBG) {
+            Log.d(TAG, String.format(
+                    "calculateDuration=%d, v=%f, d=%f", duration, velocity, progressNeeded));
+        }
+        return duration;
+    }
+
+    public int getDownX() {
+        return (int) mDownPos.x;
+    }
+
+    public int getDownY() {
+        return (int) mDownPos.y;
+    }
+    /**
+     * There's no touch and there's no animation.
+     */
+    public boolean isIdleState() {
+        return mState == ScrollState.IDLE;
+    }
+
+    public boolean isSettlingState() {
+        return mState == ScrollState.SETTLING;
+    }
+
+    public boolean isDraggingState() {
+        return mState == ScrollState.DRAGGING;
+    }
+
+    public boolean isDraggingOrSettling() {
+        return mState == ScrollState.DRAGGING || mState == ScrollState.SETTLING;
+    }
+
+    public void finishedScrolling() {
+        setState(ScrollState.IDLE);
+    }
+
+    public boolean isFling(float velocity) {
+        return Math.abs(velocity) > RELEASE_VELOCITY_PX_MS;
+    }
+
+    public boolean onTouchEvent(MotionEvent ev) {
+        int actionMasked = ev.getActionMasked();
+        if (actionMasked == MotionEvent.ACTION_DOWN && mVelocityTracker != null) {
+            mVelocityTracker.clear();
+        }
+        if (mVelocityTracker == null) {
+            mVelocityTracker = VelocityTracker.obtain();
+        }
+        mVelocityTracker.addMovement(ev);
+
+        switch (actionMasked) {
+            case MotionEvent.ACTION_DOWN:
+                mActivePointerId = ev.getPointerId(0);
+                mDownPos.set(ev.getX(), ev.getY());
+                mLastPos.set(mDownPos);
+                mLastDisplacement.set(0, 0);
+                mDisplacement.set(0, 0);
+
+                if (mState == ScrollState.SETTLING && mIgnoreSlopWhenSettling) {
+                    setState(ScrollState.DRAGGING);
+                }
+                break;
+            //case MotionEvent.ACTION_POINTER_DOWN:
+            case MotionEvent.ACTION_POINTER_UP:
+                int ptrIdx = ev.getActionIndex();
+                int ptrId = ev.getPointerId(ptrIdx);
+                if (ptrId == mActivePointerId) {
+                    final int newPointerIdx = ptrIdx == 0 ? 1 : 0;
+                    mDownPos.set(
+                            ev.getX(newPointerIdx) - (mLastPos.x - mDownPos.x),
+                            ev.getY(newPointerIdx) - (mLastPos.y - mDownPos.y));
+                    mLastPos.set(ev.getX(newPointerIdx), ev.getY(newPointerIdx));
+                    mActivePointerId = ev.getPointerId(newPointerIdx);
+                }
+                break;
+            case MotionEvent.ACTION_MOVE:
+                int pointerIndex = ev.findPointerIndex(mActivePointerId);
+                if (pointerIndex == INVALID_POINTER_ID) {
+                    break;
+                }
+                mDisplacement.set(ev.getX(pointerIndex) - mDownPos.x,
+                        ev.getY(pointerIndex) - mDownPos.y);
+                if (mIsRtl) {
+                    mDisplacement.x = -mDisplacement.x;
+                }
+
+                // handle state and listener calls.
+                if (mState != ScrollState.DRAGGING && shouldScrollStart(mDisplacement)) {
+                    setState(ScrollState.DRAGGING);
+                }
+                if (mState == ScrollState.DRAGGING) {
+                    reportDragging(ev);
+                }
+                mLastPos.set(ev.getX(pointerIndex), ev.getY(pointerIndex));
+                break;
+            case MotionEvent.ACTION_CANCEL:
+            case MotionEvent.ACTION_UP:
+                // These are synthetic events and there is no need to update internal values.
+                if (mState == ScrollState.DRAGGING) {
+                    setState(ScrollState.SETTLING);
+                }
+                mVelocityTracker.recycle();
+                mVelocityTracker = null;
+                break;
+            default:
+                break;
+        }
+        return true;
+    }
+
+    //------------------- ScrollState transition diagram -----------------------------------
+    //
+    // IDLE -> (mDisplacement > mTouchSlop) -> DRAGGING
+    // DRAGGING -> (MotionEvent#ACTION_UP, MotionEvent#ACTION_CANCEL) -> SETTLING
+    // SETTLING -> (MotionEvent#ACTION_DOWN) -> DRAGGING
+    // SETTLING -> (View settled) -> IDLE
+
+    private void setState(ScrollState newState) {
+        if (DBG) {
+            Log.d(TAG, "setState:" + mState + "->" + newState);
+        }
+        // onDragStart and onDragEnd is reported ONLY on state transition
+        if (newState == ScrollState.DRAGGING) {
+            initializeDragging();
+            if (mState == ScrollState.IDLE) {
+                reportDragStart(false /* recatch */);
+            } else if (mState == ScrollState.SETTLING) {
+                reportDragStart(true /* recatch */);
+            }
+        }
+        if (newState == ScrollState.SETTLING) {
+            reportDragEnd();
+        }
+
+        mState = newState;
+    }
+
+    private void initializeDragging() {
+        if (mState == ScrollState.SETTLING && mIgnoreSlopWhenSettling) {
+            mSubtractDisplacement.set(0, 0);
+        } else {
+            mSubtractDisplacement.x = mDisplacement.x > 0 ? mTouchSlop : -mTouchSlop;
+            mSubtractDisplacement.y = mDisplacement.y > 0 ? mTouchSlop : -mTouchSlop;
+        }
+    }
+
+    protected abstract boolean shouldScrollStart(PointF displacement);
+
+    private void reportDragStart(boolean recatch) {
+        reportDragStartInternal(recatch);
+        if (DBG) {
+            Log.d(TAG, "onDragStart recatch:" + recatch);
+        }
+    }
+
+    protected abstract void reportDragStartInternal(boolean recatch);
+
+    private void reportDragging(MotionEvent event) {
+        if (mDisplacement != mLastDisplacement) {
+            if (DBG) {
+                Log.d(TAG, String.format("onDrag disp=%s", mDisplacement));
+            }
+
+            mLastDisplacement.set(mDisplacement);
+            sTempPoint.set(mDisplacement.x - mSubtractDisplacement.x,
+                    mDisplacement.y - mSubtractDisplacement.y);
+            reportDraggingInternal(sTempPoint, event);
+        }
+    }
+
+    protected abstract void reportDraggingInternal(PointF displacement, MotionEvent event);
+
+    private void reportDragEnd() {
+        mVelocityTracker.computeCurrentVelocity(1000, mMaxVelocity);
+        PointF velocity = new PointF(mVelocityTracker.getXVelocity() / 1000,
+                mVelocityTracker.getYVelocity() / 1000);
+        if (mIsRtl) {
+            velocity.x = -velocity.x;
+        }
+        if (DBG) {
+            Log.d(TAG, String.format("onScrollEnd disp=%.1s, velocity=%.1s",
+                    mDisplacement, velocity));
+        }
+
+        reportDragEndInternal(velocity);
+    }
+
+    protected abstract void reportDragEndInternal(PointF velocity);
+}
diff --git a/src/com/android/launcher3/touch/BothAxesSwipeDetector.java b/src/com/android/launcher3/touch/BothAxesSwipeDetector.java
new file mode 100644
index 0000000..944391e
--- /dev/null
+++ b/src/com/android/launcher3/touch/BothAxesSwipeDetector.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.touch;
+
+import android.content.Context;
+import android.graphics.PointF;
+import android.view.MotionEvent;
+import android.view.ViewConfiguration;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.VisibleForTesting;
+
+import com.android.launcher3.Utilities;
+
+/**
+ * Two dimensional scroll/drag/swipe gesture detector that reports x and y displacement/velocity.
+ */
+public class BothAxesSwipeDetector extends BaseSwipeDetector {
+
+    public static final int DIRECTION_UP = 1 << 0;
+    // Note that this will track left instead of right in RTL.
+    public static final int DIRECTION_RIGHT = 1 << 1;
+    public static final int DIRECTION_DOWN = 1 << 2;
+    // Note that this will track right instead of left in RTL.
+    public static final int DIRECTION_LEFT = 1 << 3;
+
+    /* Client of this gesture detector can register a callback. */
+    private final Listener mListener;
+
+    private int mScrollDirections;
+
+    public BothAxesSwipeDetector(@NonNull Context context, @NonNull Listener l) {
+        this(ViewConfiguration.get(context), l, Utilities.isRtl(context.getResources()));
+    }
+
+    @VisibleForTesting
+    protected BothAxesSwipeDetector(@NonNull ViewConfiguration config, @NonNull Listener l,
+            boolean isRtl) {
+        super(config, isRtl);
+        mListener = l;
+    }
+
+    public void setDetectableScrollConditions(int scrollDirectionFlags, boolean ignoreSlop) {
+        mScrollDirections = scrollDirectionFlags;
+        mIgnoreSlopWhenSettling = ignoreSlop;
+    }
+
+    @Override
+    protected boolean shouldScrollStart(PointF displacement) {
+        // Check if the client is interested in scroll in current direction.
+        boolean canScrollUp = (mScrollDirections & DIRECTION_UP) > 0
+                && displacement.y <= -mTouchSlop;
+        boolean canScrollRight = (mScrollDirections & DIRECTION_RIGHT) > 0
+                && displacement.x >= mTouchSlop;
+        boolean canScrollDown = (mScrollDirections & DIRECTION_DOWN) > 0
+                && displacement.y >= mTouchSlop;
+        boolean canScrollLeft = (mScrollDirections & DIRECTION_LEFT) > 0
+                && displacement.x <= -mTouchSlop;
+        return canScrollUp || canScrollRight || canScrollDown || canScrollLeft;
+    }
+
+    @Override
+    protected void reportDragStartInternal(boolean recatch) {
+        mListener.onDragStart(!recatch);
+    }
+
+    @Override
+    protected void reportDraggingInternal(PointF displacement, MotionEvent event) {
+        mListener.onDrag(displacement, event);
+    }
+
+    @Override
+    protected void reportDragEndInternal(PointF velocity) {
+        mListener.onDragEnd(velocity);
+    }
+
+    /** Listener to receive updates on the swipe. */
+    public interface Listener {
+        /** @param start whether this was the original drag start, as opposed to a recatch. */
+        void onDragStart(boolean start);
+
+        boolean onDrag(PointF displacement, MotionEvent motionEvent);
+
+        void onDragEnd(PointF velocity);
+    }
+}
diff --git a/src/com/android/launcher3/touch/ItemLongClickListener.java b/src/com/android/launcher3/touch/ItemLongClickListener.java
index 0f808c1..86d2b39 100644
--- a/src/com/android/launcher3/touch/ItemLongClickListener.java
+++ b/src/com/android/launcher3/touch/ItemLongClickListener.java
@@ -17,6 +17,7 @@
 
 import static android.view.View.INVISIBLE;
 import static android.view.View.VISIBLE;
+
 import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.OVERVIEW;
@@ -64,7 +65,7 @@
         if (info.container >= 0) {
             Folder folder = Folder.getOpen(launcher);
             if (folder != null) {
-                if (!folder.getItemsInReadingOrder().contains(v)) {
+                if (!folder.getIconsInReadingOrder().contains(v)) {
                     folder.close(true);
                 } else {
                     folder.startDrag(v, dragOptions);
diff --git a/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java b/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java
new file mode 100644
index 0000000..f2ebc45
--- /dev/null
+++ b/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java
@@ -0,0 +1,190 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.touch;
+
+import android.content.Context;
+import android.graphics.PointF;
+import android.view.MotionEvent;
+import android.view.ViewConfiguration;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.VisibleForTesting;
+
+import com.android.launcher3.Utilities;
+
+/**
+ * One dimensional scroll/drag/swipe gesture detector (either HORIZONTAL or VERTICAL).
+ */
+public class SingleAxisSwipeDetector extends BaseSwipeDetector {
+
+    public static final int DIRECTION_POSITIVE = 1 << 0;
+    public static final int DIRECTION_NEGATIVE = 1 << 1;
+    public static final int DIRECTION_BOTH = DIRECTION_NEGATIVE | DIRECTION_POSITIVE;
+
+    public static final Direction VERTICAL = new Direction() {
+
+        @Override
+        boolean isPositive(float displacement) {
+            // Up
+            return displacement < 0;
+        }
+
+        @Override
+        boolean isNegative(float displacement) {
+            // Down
+            return displacement > 0;
+        }
+
+        @Override
+        float extractDirection(PointF direction) {
+            return direction.y;
+        }
+
+        @Override
+        boolean canScrollStart(PointF displacement, float touchSlop) {
+            return Math.abs(displacement.y) >= Math.max(Math.abs(displacement.x), touchSlop);
+        }
+
+    };
+
+    public static final Direction HORIZONTAL = new Direction() {
+
+        @Override
+        boolean isPositive(float displacement) {
+            // Right
+            return displacement > 0;
+        }
+
+        @Override
+        boolean isNegative(float displacement) {
+            // Left
+            return displacement < 0;
+        }
+
+        @Override
+        float extractDirection(PointF direction) {
+            return direction.x;
+        }
+
+        @Override
+        boolean canScrollStart(PointF displacement, float touchSlop) {
+            return Math.abs(displacement.x) >= Math.max(Math.abs(displacement.y), touchSlop);
+        }
+    };
+
+    private final Direction mDir;
+    /* Client of this gesture detector can register a callback. */
+    private final Listener mListener;
+
+    private int mScrollDirections;
+
+    public SingleAxisSwipeDetector(@NonNull Context context, @NonNull Listener l,
+            @NonNull Direction dir) {
+        this(ViewConfiguration.get(context), l, dir, Utilities.isRtl(context.getResources()));
+    }
+
+    @VisibleForTesting
+    protected SingleAxisSwipeDetector(@NonNull ViewConfiguration config, @NonNull Listener l,
+            @NonNull Direction dir, boolean isRtl) {
+        super(config, isRtl);
+        mListener = l;
+        mDir = dir;
+    }
+
+    public void setDetectableScrollConditions(int scrollDirectionFlags, boolean ignoreSlop) {
+        mScrollDirections = scrollDirectionFlags;
+        mIgnoreSlopWhenSettling = ignoreSlop;
+    }
+
+    public int getScrollDirections() {
+        return mScrollDirections;
+    }
+
+    /**
+     * Returns if the start drag was towards the positive direction or negative.
+     *
+     * @see #setDetectableScrollConditions(int, boolean)
+     * @see #DIRECTION_BOTH
+     */
+    public boolean wasInitialTouchPositive() {
+        return mDir.isPositive(mDir.extractDirection(mSubtractDisplacement));
+    }
+
+    @Override
+    protected boolean shouldScrollStart(PointF displacement) {
+        // Reject cases where the angle or slop condition is not met.
+        if (!mDir.canScrollStart(displacement, mTouchSlop)) {
+            return false;
+        }
+
+        // Check if the client is interested in scroll in current direction.
+        float displacementComponent = mDir.extractDirection(displacement);
+        return canScrollNegative(displacementComponent) || canScrollPositive(displacementComponent);
+    }
+
+    private boolean canScrollNegative(float displacement) {
+        return (mScrollDirections & DIRECTION_NEGATIVE) > 0 && mDir.isNegative(displacement);
+    }
+
+    private boolean canScrollPositive(float displacement) {
+        return (mScrollDirections & DIRECTION_POSITIVE) > 0 && mDir.isPositive(displacement);
+    }
+
+    @Override
+    protected void reportDragStartInternal(boolean recatch) {
+        mListener.onDragStart(!recatch);
+    }
+
+    @Override
+    protected void reportDraggingInternal(PointF displacement, MotionEvent event) {
+        mListener.onDrag(mDir.extractDirection(displacement), event);
+    }
+
+    @Override
+    protected void reportDragEndInternal(PointF velocity) {
+        float velocityComponent = mDir.extractDirection(velocity);
+        mListener.onDragEnd(velocityComponent);
+    }
+
+    /** Listener to receive updates on the swipe. */
+    public interface Listener {
+        /** @param start whether this was the original drag start, as opposed to a recatch. */
+        void onDragStart(boolean start);
+
+        // TODO remove
+        boolean onDrag(float displacement);
+
+        default boolean onDrag(float displacement, MotionEvent event) {
+            return onDrag(displacement);
+        }
+
+        void onDragEnd(float velocity);
+    }
+
+    public abstract static class Direction {
+
+        abstract boolean isPositive(float displacement);
+
+        abstract boolean isNegative(float displacement);
+
+        /** Returns the part of the given {@link PointF} that is relevant to this direction. */
+        abstract float extractDirection(PointF point);
+
+        /** Reject cases where the angle or slop condition is not met. */
+        abstract boolean canScrollStart(PointF displacement, float touchSlop);
+
+    }
+}
diff --git a/src/com/android/launcher3/touch/SwipeDetector.java b/src/com/android/launcher3/touch/SwipeDetector.java
deleted file mode 100644
index 3777a41..0000000
--- a/src/com/android/launcher3/touch/SwipeDetector.java
+++ /dev/null
@@ -1,407 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.launcher3.touch;
-
-import static android.view.MotionEvent.INVALID_POINTER_ID;
-
-import android.content.Context;
-import android.graphics.PointF;
-import android.util.Log;
-import android.view.MotionEvent;
-import android.view.VelocityTracker;
-import android.view.ViewConfiguration;
-
-import com.android.launcher3.Utilities;
-import com.android.launcher3.testing.TestProtocol;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.VisibleForTesting;
-
-/**
- * One dimensional scroll/drag/swipe gesture detector.
- *
- * Definition of swipe is different from android system in that this detector handles
- * 'swipe to dismiss', 'swiping up/down a container' but also keeps scrolling state before
- * swipe action happens
- */
-public class SwipeDetector {
-
-    private static final boolean DBG = false;
-    private static final String TAG = "SwipeDetector";
-
-    private int mScrollConditions;
-    public static final int DIRECTION_POSITIVE = 1 << 0;
-    public static final int DIRECTION_NEGATIVE = 1 << 1;
-    public static final int DIRECTION_BOTH = DIRECTION_NEGATIVE | DIRECTION_POSITIVE;
-
-    private static final float ANIMATION_DURATION = 1200;
-
-    protected int mActivePointerId = INVALID_POINTER_ID;
-
-    /**
-     * The minimum release velocity in pixels per millisecond that triggers fling..
-     */
-    public static final float RELEASE_VELOCITY_PX_MS = 1.0f;
-
-    /* Scroll state, this is set to true during dragging and animation. */
-    private ScrollState mState = ScrollState.IDLE;
-
-    enum ScrollState {
-        IDLE,
-        DRAGGING,      // onDragStart, onDrag
-        SETTLING       // onDragEnd
-    }
-
-    public static abstract class Direction {
-
-        abstract float getDisplacement(MotionEvent ev, int pointerIndex, PointF refPoint,
-                boolean isRtl);
-
-        /**
-         * Distance in pixels a touch can wander before we think the user is scrolling.
-         */
-        abstract float getActiveTouchSlop(MotionEvent ev, int pointerIndex, PointF downPos);
-
-        abstract float getVelocity(VelocityTracker tracker, boolean isRtl);
-
-        abstract boolean isPositive(float displacement);
-
-        abstract boolean isNegative(float displacement);
-    }
-
-    public static final Direction VERTICAL = new Direction() {
-
-        @Override
-        float getDisplacement(MotionEvent ev, int pointerIndex, PointF refPoint, boolean isRtl) {
-            return ev.getY(pointerIndex) - refPoint.y;
-        }
-
-        @Override
-        float getActiveTouchSlop(MotionEvent ev, int pointerIndex, PointF downPos) {
-            return Math.abs(ev.getX(pointerIndex) - downPos.x);
-        }
-
-        @Override
-        float getVelocity(VelocityTracker tracker, boolean isRtl) {
-            return tracker.getYVelocity();
-        }
-
-        @Override
-        boolean isPositive(float displacement) {
-            // Up
-            return displacement < 0;
-        }
-
-        @Override
-        boolean isNegative(float displacement) {
-            // Down
-            return displacement > 0;
-        }
-    };
-
-    public static final Direction HORIZONTAL = new Direction() {
-
-        @Override
-        float getDisplacement(MotionEvent ev, int pointerIndex, PointF refPoint, boolean isRtl) {
-            float displacement = ev.getX(pointerIndex) - refPoint.x;
-            if (isRtl) {
-                displacement = -displacement;
-            }
-            return displacement;
-        }
-
-        @Override
-        float getActiveTouchSlop(MotionEvent ev, int pointerIndex, PointF downPos) {
-            return Math.abs(ev.getY(pointerIndex) - downPos.y);
-        }
-
-        @Override
-        float getVelocity(VelocityTracker tracker, boolean isRtl) {
-            float velocity = tracker.getXVelocity();
-            if (isRtl) {
-                velocity = -velocity;
-            }
-            return velocity;
-        }
-
-        @Override
-        boolean isPositive(float displacement) {
-            // Right
-            return displacement > 0;
-        }
-
-        @Override
-        boolean isNegative(float displacement) {
-            // Left
-            return displacement < 0;
-        }
-    };
-
-    //------------------- ScrollState transition diagram -----------------------------------
-    //
-    // IDLE ->      (mDisplacement > mTouchSlop) -> DRAGGING
-    // DRAGGING -> (MotionEvent#ACTION_UP, MotionEvent#ACTION_CANCEL) -> SETTLING
-    // SETTLING -> (MotionEvent#ACTION_DOWN) -> DRAGGING
-    // SETTLING -> (View settled) -> IDLE
-
-    private void setState(ScrollState newState) {
-        if (DBG) {
-            Log.d(TAG, "setState:" + mState + "->" + newState);
-        }
-        // onDragStart and onDragEnd is reported ONLY on state transition
-        if (newState == ScrollState.DRAGGING) {
-            initializeDragging();
-            if (mState == ScrollState.IDLE) {
-                reportDragStart(false /* recatch */);
-            } else if (mState == ScrollState.SETTLING) {
-                reportDragStart(true /* recatch */);
-            }
-        }
-        if (newState == ScrollState.SETTLING) {
-            reportDragEnd();
-        }
-
-        mState = newState;
-    }
-
-    public boolean isDraggingOrSettling() {
-        return mState == ScrollState.DRAGGING || mState == ScrollState.SETTLING;
-    }
-
-    public int getDownX() {
-        return (int) mDownPos.x;
-    }
-
-    public int getDownY() {
-        return (int) mDownPos.y;
-    }
-    /**
-     * There's no touch and there's no animation.
-     */
-    public boolean isIdleState() {
-        return mState == ScrollState.IDLE;
-    }
-
-    public boolean isSettlingState() {
-        return mState == ScrollState.SETTLING;
-    }
-
-    public boolean isDraggingState() {
-        return mState == ScrollState.DRAGGING;
-    }
-
-    private final PointF mDownPos = new PointF();
-    private final PointF mLastPos = new PointF();
-    private final Direction mDir;
-    private final boolean mIsRtl;
-
-    private final float mTouchSlop;
-    private final float mMaxVelocity;
-
-    /* Client of this gesture detector can register a callback. */
-    private final Listener mListener;
-
-    private VelocityTracker mVelocityTracker;
-
-    private float mLastDisplacement;
-    private float mDisplacement;
-
-    private float mSubtractDisplacement;
-    private boolean mIgnoreSlopWhenSettling;
-
-    public interface Listener {
-        void onDragStart(boolean start);
-
-        boolean onDrag(float displacement);
-
-        default boolean onDrag(float displacement, MotionEvent event) {
-            return onDrag(displacement);
-        }
-
-        void onDragEnd(float velocity, boolean fling);
-    }
-
-    public SwipeDetector(@NonNull Context context, @NonNull Listener l, @NonNull Direction dir) {
-        this(ViewConfiguration.get(context), l, dir, Utilities.isRtl(context.getResources()));
-    }
-
-    @VisibleForTesting
-    protected SwipeDetector(@NonNull ViewConfiguration config, @NonNull Listener l,
-            @NonNull Direction dir, boolean isRtl) {
-        mListener = l;
-        mDir = dir;
-        mIsRtl = isRtl;
-        mTouchSlop = config.getScaledTouchSlop();
-        mMaxVelocity = config.getScaledMaximumFlingVelocity();
-    }
-
-    public void setDetectableScrollConditions(int scrollDirectionFlags, boolean ignoreSlop) {
-        mScrollConditions = scrollDirectionFlags;
-        mIgnoreSlopWhenSettling = ignoreSlop;
-    }
-
-    public int getScrollDirections() {
-        return mScrollConditions;
-    }
-
-    private boolean shouldScrollStart(MotionEvent ev, int pointerIndex) {
-        // reject cases where the angle or slop condition is not met.
-        if (Math.max(mDir.getActiveTouchSlop(ev, pointerIndex, mDownPos), mTouchSlop)
-                > Math.abs(mDisplacement)) {
-            return false;
-        }
-
-        // Check if the client is interested in scroll in current direction.
-        if (((mScrollConditions & DIRECTION_NEGATIVE) > 0 && mDir.isNegative(mDisplacement)) ||
-                ((mScrollConditions & DIRECTION_POSITIVE) > 0 && mDir.isPositive(mDisplacement))) {
-            return true;
-        }
-        return false;
-    }
-
-    public boolean onTouchEvent(MotionEvent ev) {
-        int actionMasked = ev.getActionMasked();
-        if (actionMasked == MotionEvent.ACTION_DOWN && mVelocityTracker != null) {
-            mVelocityTracker.clear();
-        }
-        if (mVelocityTracker == null) {
-            mVelocityTracker = VelocityTracker.obtain();
-        }
-        mVelocityTracker.addMovement(ev);
-
-        switch (actionMasked) {
-            case MotionEvent.ACTION_DOWN:
-                mActivePointerId = ev.getPointerId(0);
-                mDownPos.set(ev.getX(), ev.getY());
-                mLastPos.set(mDownPos);
-                mLastDisplacement = 0;
-                mDisplacement = 0;
-
-                if (mState == ScrollState.SETTLING && mIgnoreSlopWhenSettling) {
-                    setState(ScrollState.DRAGGING);
-                }
-                break;
-            //case MotionEvent.ACTION_POINTER_DOWN:
-            case MotionEvent.ACTION_POINTER_UP:
-                int ptrIdx = ev.getActionIndex();
-                int ptrId = ev.getPointerId(ptrIdx);
-                if (ptrId == mActivePointerId) {
-                    final int newPointerIdx = ptrIdx == 0 ? 1 : 0;
-                    mDownPos.set(
-                            ev.getX(newPointerIdx) - (mLastPos.x - mDownPos.x),
-                            ev.getY(newPointerIdx) - (mLastPos.y - mDownPos.y));
-                    mLastPos.set(ev.getX(newPointerIdx), ev.getY(newPointerIdx));
-                    mActivePointerId = ev.getPointerId(newPointerIdx);
-                }
-                break;
-            case MotionEvent.ACTION_MOVE:
-                int pointerIndex = ev.findPointerIndex(mActivePointerId);
-                if (pointerIndex == INVALID_POINTER_ID) {
-                    break;
-                }
-                mDisplacement = mDir.getDisplacement(ev, pointerIndex, mDownPos, mIsRtl);
-
-                // handle state and listener calls.
-                if (mState != ScrollState.DRAGGING && shouldScrollStart(ev, pointerIndex)) {
-                    setState(ScrollState.DRAGGING);
-                }
-                if (mState == ScrollState.DRAGGING) {
-                    reportDragging(ev);
-                }
-                mLastPos.set(ev.getX(pointerIndex), ev.getY(pointerIndex));
-                break;
-            case MotionEvent.ACTION_CANCEL:
-            case MotionEvent.ACTION_UP:
-                // These are synthetic events and there is no need to update internal values.
-                if (mState == ScrollState.DRAGGING) {
-                    setState(ScrollState.SETTLING);
-                }
-                mVelocityTracker.recycle();
-                mVelocityTracker = null;
-                break;
-            default:
-                break;
-        }
-        return true;
-    }
-
-    public void finishedScrolling() {
-        setState(ScrollState.IDLE);
-    }
-
-    private boolean reportDragStart(boolean recatch) {
-        mListener.onDragStart(!recatch);
-        if (DBG) {
-            Log.d(TAG, "onDragStart recatch:" + recatch);
-        }
-        return true;
-    }
-
-    private void initializeDragging() {
-        if (mState == ScrollState.SETTLING && mIgnoreSlopWhenSettling) {
-            mSubtractDisplacement = 0;
-        }
-        if (mDisplacement > 0) {
-            mSubtractDisplacement = mTouchSlop;
-        } else {
-            mSubtractDisplacement = -mTouchSlop;
-        }
-    }
-
-    /**
-     * Returns if the start drag was towards the positive direction or negative.
-     *
-     * @see #setDetectableScrollConditions(int, boolean)
-     * @see #DIRECTION_BOTH
-     */
-    public boolean wasInitialTouchPositive() {
-        return mDir.isPositive(mSubtractDisplacement);
-    }
-
-    private boolean reportDragging(MotionEvent event) {
-        if (mDisplacement != mLastDisplacement) {
-            if (DBG) {
-                Log.d(TAG, String.format("onDrag disp=%.1f", mDisplacement));
-            }
-
-            mLastDisplacement = mDisplacement;
-            return mListener.onDrag(mDisplacement - mSubtractDisplacement, event);
-        }
-        return true;
-    }
-
-    private void reportDragEnd() {
-        mVelocityTracker.computeCurrentVelocity(1000, mMaxVelocity);
-        float velocity = mDir.getVelocity(mVelocityTracker, mIsRtl) / 1000;
-        if (DBG) {
-            Log.d(TAG, String.format("onScrollEnd disp=%.1f, velocity=%.1f",
-                    mDisplacement, velocity));
-        }
-
-        mListener.onDragEnd(velocity, Math.abs(velocity) > RELEASE_VELOCITY_PX_MS);
-    }
-
-    public static long calculateDuration(float velocity, float progressNeeded) {
-        // TODO: make these values constants after tuning.
-        float velocityDivisor = Math.max(2f, Math.abs(0.5f * velocity));
-        float travelDistance = Math.max(0.2f, progressNeeded);
-        long duration = (long) Math.max(100, ANIMATION_DURATION / velocityDivisor * travelDistance);
-        if (DBG) {
-            Log.d(TAG, String.format("calculateDuration=%d, v=%f, d=%f", duration, velocity, progressNeeded));
-        }
-        return duration;
-    }
-}
diff --git a/src/com/android/launcher3/util/ConfigMonitor.java b/src/com/android/launcher3/util/ConfigMonitor.java
index 12d35e9..0f81520 100644
--- a/src/com/android/launcher3/util/ConfigMonitor.java
+++ b/src/com/android/launcher3/util/ConfigMonitor.java
@@ -16,20 +16,15 @@
  * limitations under the License.
  */
 
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.res.Configuration;
 import android.graphics.Point;
-import android.hardware.display.DisplayManager;
-import android.hardware.display.DisplayManager.DisplayListener;
-import android.os.Handler;
 import android.util.Log;
-import android.view.Display;
-import android.view.WindowManager;
-
-import com.android.launcher3.MainThreadExecutor;
 
 import java.util.function.Consumer;
 
@@ -37,7 +32,8 @@
  * {@link BroadcastReceiver} which watches configuration changes and
  * notifies the callback in case changes which affect the device profile occur.
  */
-public class ConfigMonitor extends BroadcastReceiver implements DisplayListener {
+public class ConfigMonitor extends BroadcastReceiver implements
+        DefaultDisplay.DisplayInfoChangeListener {
 
     private static final String TAG = "ConfigMonitor";
 
@@ -61,24 +57,19 @@
         mFontScale = config.fontScale;
         mDensity = config.densityDpi;
 
-        Display display = getDefaultDisplay(context);
-        mDisplayId = display.getDisplayId();
+        DefaultDisplay display = DefaultDisplay.INSTANCE.get(context);
+        display.addChangeListener(this);
+        DefaultDisplay.Info displayInfo = display.getInfo();
+        mDisplayId = displayInfo.id;
 
-        mRealSize = new Point();
-        display.getRealSize(mRealSize);
-
-        mSmallestSize = new Point();
-        mLargestSize = new Point();
-        display.getCurrentSizeRange(mSmallestSize, mLargestSize);
+        mRealSize = new Point(displayInfo.realSize);
+        mSmallestSize = new Point(displayInfo.smallestSize);
+        mLargestSize = new Point(displayInfo.largestSize);
 
         mCallback = callback;
 
         // Listen for configuration change
         mContext.registerReceiver(this, new IntentFilter(Intent.ACTION_CONFIGURATION_CHANGED));
-
-        // Listen for display manager change
-        mContext.getSystemService(DisplayManager.class)
-                .registerDisplayListener(this, new Handler(UiThreadHelper.getBackgroundLooper()));
     }
 
     @Override
@@ -91,26 +82,19 @@
     }
 
     @Override
-    public void onDisplayAdded(int displayId) { }
-
-    @Override
-    public void onDisplayRemoved(int displayId) { }
-
-    @Override
-    public void onDisplayChanged(int displayId) {
-        if (displayId != mDisplayId) {
+    public void onDisplayInfoChanged(DefaultDisplay.Info info, int flags) {
+        if (info.id != mDisplayId) {
             return;
         }
-        Display display = getDefaultDisplay(mContext);
-        display.getRealSize(mTmpPoint1);
-
+        mTmpPoint1.set(info.realSize.x, info.realSize.y);
         if (!mRealSize.equals(mTmpPoint1) && !mRealSize.equals(mTmpPoint1.y, mTmpPoint1.x)) {
             Log.d(TAG, String.format("Display size changed from %s to %s", mRealSize, mTmpPoint1));
             notifyChange();
             return;
         }
 
-        display.getCurrentSizeRange(mTmpPoint1, mTmpPoint2);
+        mTmpPoint1.set(info.smallestSize.x, info.smallestSize.y);
+        mTmpPoint2.set(info.largestSize.x, info.largestSize.y);
         if (!mSmallestSize.equals(mTmpPoint1) || !mLargestSize.equals(mTmpPoint2)) {
             Log.d(TAG, String.format("Available size changed from [%s, %s] to [%s, %s]",
                     mSmallestSize, mLargestSize, mTmpPoint1, mTmpPoint2));
@@ -122,18 +106,15 @@
         if (mCallback != null) {
             Consumer<Context> callback = mCallback;
             mCallback = null;
-            new MainThreadExecutor().execute(() -> callback.accept(mContext));
+            MAIN_EXECUTOR.execute(() -> callback.accept(mContext));
         }
     }
 
-    private Display getDefaultDisplay(Context context) {
-        return context.getSystemService(WindowManager.class).getDefaultDisplay();
-    }
-
     public void unregister() {
         try {
             mContext.unregisterReceiver(this);
-            mContext.getSystemService(DisplayManager.class).unregisterDisplayListener(this);
+            DefaultDisplay display = DefaultDisplay.INSTANCE.get(mContext);
+            display.removeChangeListener(this);
         } catch (Exception e) {
             Log.e(TAG, "Failed to unregister config monitor", e);
         }
diff --git a/src/com/android/launcher3/util/DefaultDisplay.java b/src/com/android/launcher3/util/DefaultDisplay.java
index 7719f08..8529d50 100644
--- a/src/com/android/launcher3/util/DefaultDisplay.java
+++ b/src/com/android/launcher3/util/DefaultDisplay.java
@@ -15,12 +15,15 @@
  */
 package com.android.launcher3.util;
 
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
+
 import android.content.Context;
 import android.graphics.Point;
 import android.hardware.display.DisplayManager;
 import android.hardware.display.DisplayManager.DisplayListener;
 import android.os.Handler;
 import android.os.Message;
+import android.util.DisplayMetrics;
 import android.util.Log;
 import android.view.Display;
 import android.view.WindowManager;
@@ -54,7 +57,7 @@
         mChangeHandler = new Handler(this::onChange);
 
         context.getSystemService(DisplayManager.class)
-                .registerDisplayListener(this, new Handler(UiThreadHelper.getBackgroundLooper()));
+                .registerDisplayListener(this, UI_HELPER_EXECUTOR.getHandler());
     }
 
     @Override
@@ -122,6 +125,8 @@
         public final Point smallestSize;
         public final Point largestSize;
 
+        public final DisplayMetrics metrics;
+
         private Info(Context context) {
             Display display = context.getSystemService(WindowManager.class).getDefaultDisplay();
 
@@ -136,6 +141,9 @@
             largestSize = new Point();
             display.getRealSize(realSize);
             display.getCurrentSizeRange(smallestSize, largestSize);
+
+            metrics = new DisplayMetrics();
+            display.getMetrics(metrics);
         }
 
         private boolean hasDifferentSize(Info info) {
diff --git a/src/com/android/launcher3/util/Executors.java b/src/com/android/launcher3/util/Executors.java
new file mode 100644
index 0000000..4d5ee49
--- /dev/null
+++ b/src/com/android/launcher3/util/Executors.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.util;
+
+import android.os.HandlerThread;
+import android.os.Looper;
+import android.os.Process;
+
+import java.util.concurrent.Executor;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Various different executors used in Launcher
+ */
+public class Executors {
+
+    // These values are same as that in {@link AsyncTask}.
+    private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
+    private static final int CORE_POOL_SIZE = CPU_COUNT + 1;
+    private static final int MAXIMUM_POOL_SIZE = CPU_COUNT * 2 + 1;
+    private static final int KEEP_ALIVE = 1;
+
+    /**
+     * An {@link Executor} to be used with async task with no limit on the queue size.
+     */
+    public static final Executor THREAD_POOL_EXECUTOR = new ThreadPoolExecutor(
+            CORE_POOL_SIZE, MAXIMUM_POOL_SIZE, KEEP_ALIVE,
+            TimeUnit.SECONDS, new LinkedBlockingQueue<>());
+
+    /**
+     * Returns the executor for running tasks on the main thread.
+     */
+    public static final LooperExecutor MAIN_EXECUTOR =
+            new LooperExecutor(Looper.getMainLooper());
+
+    /**
+     * A background executor for using time sensitive actions where user is waiting for response.
+     */
+    public static final LooperExecutor UI_HELPER_EXECUTOR =
+            new LooperExecutor(createAndStartNewForegroundLooper("UiThreadHelper"));
+
+    /**
+     * Utility method to get a started handler thread statically
+     */
+    public static Looper createAndStartNewLooper(String name) {
+        return createAndStartNewLooper(name, Process.THREAD_PRIORITY_DEFAULT);
+    }
+
+    /**
+     * Utility method to get a started handler thread statically with the provided priority
+     */
+    public static Looper createAndStartNewLooper(String name, int priority) {
+        HandlerThread thread = new HandlerThread(name, priority);
+        thread.start();
+        return thread.getLooper();
+    }
+
+    /**
+     * Similar to {@link #createAndStartNewLooper(String)}, but starts the thread with
+     * foreground priority.
+     * Think before using
+     */
+    public static Looper createAndStartNewForegroundLooper(String name) {
+        return createAndStartNewLooper(name, Process.THREAD_PRIORITY_FOREGROUND);
+    }
+
+    /**
+     * Executor used for running Launcher model related tasks (eg loading icons or updated db)
+     */
+    public static final LooperExecutor MODEL_EXECUTOR =
+            new LooperExecutor(createAndStartNewLooper("launcher-loader"));
+}
diff --git a/src/com/android/launcher3/util/IOUtils.java b/src/com/android/launcher3/util/IOUtils.java
index f95f74d..4a4a5ca 100644
--- a/src/com/android/launcher3/util/IOUtils.java
+++ b/src/com/android/launcher3/util/IOUtils.java
@@ -17,10 +17,13 @@
 package com.android.launcher3.util;
 
 import android.content.Context;
+import android.util.Log;
 
+import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;
 
 import java.io.ByteArrayOutputStream;
+import java.io.Closeable;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
@@ -35,6 +38,7 @@
 public class IOUtils {
 
     private static final int BUF_SIZE = 0x1000; // 4K
+    private static final String TAG = "IOUtils";
 
     public static byte[] toByteArray(File file) throws IOException {
         try (InputStream in = new FileInputStream(file)) {
@@ -77,4 +81,16 @@
         }
         return file.getAbsolutePath();
     }
+
+    public static void closeSilently(Closeable c) {
+        if (c != null) {
+            try {
+                c.close();
+            } catch (IOException e) {
+                if (FeatureFlags.IS_DOGFOOD_BUILD) {
+                    Log.d(TAG, "Error closing", e);
+                }
+            }
+        }
+    }
 }
diff --git a/src/com/android/launcher3/util/IntArray.java b/src/com/android/launcher3/util/IntArray.java
index d2a551f..7252f7a 100644
--- a/src/com/android/launcher3/util/IntArray.java
+++ b/src/com/android/launcher3/util/IntArray.java
@@ -17,6 +17,7 @@
 package com.android.launcher3.util;
 
 import java.util.Arrays;
+import java.util.StringTokenizer;
 
 /**
  * Copy of the platform hidden implementation of android.util.IntArray.
@@ -248,6 +249,17 @@
         return b.toString();
     }
 
+    public static IntArray fromConcatString(String concatString) {
+        StringTokenizer tokenizer = new StringTokenizer(concatString, ",");
+        int[] array = new int[tokenizer.countTokens()];
+        int count = 0;
+        while (tokenizer.hasMoreTokens()) {
+            array[count] = Integer.parseInt(tokenizer.nextToken().trim());
+            count++;
+        }
+        return new IntArray(array, array.length);
+    }
+
     /**
      * Throws {@link ArrayIndexOutOfBoundsException} if the index is out of bounds.
      *
diff --git a/src/com/android/launcher3/util/LooperExecutor.java b/src/com/android/launcher3/util/LooperExecutor.java
index cc07469..8ac600f 100644
--- a/src/com/android/launcher3/util/LooperExecutor.java
+++ b/src/com/android/launcher3/util/LooperExecutor.java
@@ -16,7 +16,9 @@
 package com.android.launcher3.util;
 
 import android.os.Handler;
+import android.os.HandlerThread;
 import android.os.Looper;
+import android.os.Process;
 
 import java.util.List;
 import java.util.concurrent.AbstractExecutorService;
@@ -47,6 +49,13 @@
     }
 
     /**
+     * Same as execute, but never runs the action inline.
+     */
+    public void post(Runnable runnable) {
+        mHandler.post(runnable);
+    }
+
+    /**
      * Not supported and throws an exception when used.
      */
     @Override
@@ -79,7 +88,31 @@
      */
     @Override
     @Deprecated
-    public boolean awaitTermination(long l, TimeUnit timeUnit) throws InterruptedException {
+    public boolean awaitTermination(long l, TimeUnit timeUnit) {
         throw new UnsupportedOperationException();
     }
+
+    /**
+     * Returns the thread for this executor
+     */
+    public Thread getThread() {
+        return mHandler.getLooper().getThread();
+    }
+
+    /**
+     * Returns the looper for this executor
+     */
+    public Looper getLooper() {
+        return mHandler.getLooper();
+    }
+
+    /**
+     * Set the priority of a thread, based on Linux priorities.
+     * @param priority Linux priority level, from -20 for highest scheduling priority
+     *                to 19 for lowest scheduling priority.
+     * @see Process#setThreadPriority(int, int)
+     */
+    public void setThreadPriority(int priority) {
+        Process.setThreadPriority(((HandlerThread) getThread()).getThreadId(), priority);
+    }
 }
diff --git a/src/com/android/launcher3/util/MainThreadInitializedObject.java b/src/com/android/launcher3/util/MainThreadInitializedObject.java
index e185a31..fe9c2c4 100644
--- a/src/com/android/launcher3/util/MainThreadInitializedObject.java
+++ b/src/com/android/launcher3/util/MainThreadInitializedObject.java
@@ -15,12 +15,13 @@
  */
 package com.android.launcher3.util;
 
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+
 import android.content.Context;
 import android.os.Looper;
 
 import androidx.annotation.VisibleForTesting;
 
-import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.util.ResourceBasedOverride.Overrides;
 
 import java.util.concurrent.ExecutionException;
@@ -43,7 +44,7 @@
                 mValue = mProvider.get(context.getApplicationContext());
             } else {
                 try {
-                    return new MainThreadExecutor().submit(() -> get(context)).get();
+                    return MAIN_EXECUTOR.submit(() -> get(context)).get();
                 } catch (InterruptedException|ExecutionException e) {
                     throw new RuntimeException(e);
                 }
diff --git a/src/com/android/launcher3/util/PackageManagerHelper.java b/src/com/android/launcher3/util/PackageManagerHelper.java
index 7d3a941..e97adb5 100644
--- a/src/com/android/launcher3/util/PackageManagerHelper.java
+++ b/src/com/android/launcher3/util/PackageManagerHelper.java
@@ -24,9 +24,11 @@
 import android.content.IntentFilter;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.LauncherActivityInfo;
+import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.ResolveInfo;
+import android.content.res.Resources;
 import android.graphics.Rect;
 import android.net.Uri;
 import android.os.Build;
@@ -35,6 +37,7 @@
 import android.os.UserHandle;
 import android.text.TextUtils;
 import android.util.Log;
+import android.util.Pair;
 import android.widget.Toast;
 
 import com.android.launcher3.AppInfo;
@@ -220,4 +223,76 @@
         packageFilter.addDataSchemeSpecificPart(pkg, PatternMatcher.PATTERN_LITERAL);
         return packageFilter;
     }
+
+    public static boolean isSystemApp(Context context, Intent intent) {
+        PackageManager pm = context.getPackageManager();
+        ComponentName cn = intent.getComponent();
+        String packageName = null;
+        if (cn == null) {
+            ResolveInfo info = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
+            if ((info != null) && (info.activityInfo != null)) {
+                packageName = info.activityInfo.packageName;
+            }
+        } else {
+            packageName = cn.getPackageName();
+        }
+        if (packageName == null) {
+            packageName = intent.getPackage();
+        }
+        if (packageName != null) {
+            try {
+                PackageInfo info = pm.getPackageInfo(packageName, 0);
+                return (info != null) && (info.applicationInfo != null) &&
+                        ((info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0);
+            } catch (NameNotFoundException e) {
+                return false;
+            }
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * Finds a system apk which had a broadcast receiver listening to a particular action.
+     * @param action intent action used to find the apk
+     * @return a pair of apk package name and the resources.
+     */
+    public static Pair<String, Resources> findSystemApk(String action, PackageManager pm) {
+        final Intent intent = new Intent(action);
+        for (ResolveInfo info : pm.queryBroadcastReceivers(intent, 0)) {
+            if (info.activityInfo != null &&
+                    (info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
+                final String packageName = info.activityInfo.packageName;
+                try {
+                    final Resources res = pm.getResourcesForApplication(packageName);
+                    return Pair.create(packageName, res);
+                } catch (NameNotFoundException e) {
+                    Log.w(TAG, "Failed to find resources for " + packageName);
+                }
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Returns true if the intent is a valid launch intent for a launcher activity of an app.
+     * This is used to identify shortcuts which are different from the ones exposed by the
+     * applications' manifest file.
+     *
+     * @param launchIntent The intent that will be launched when the shortcut is clicked.
+     */
+    public static boolean isLauncherAppTarget(Intent launchIntent) {
+        if (launchIntent != null
+                && Intent.ACTION_MAIN.equals(launchIntent.getAction())
+                && launchIntent.getComponent() != null
+                && launchIntent.getCategories() != null
+                && launchIntent.getCategories().size() == 1
+                && launchIntent.hasCategory(Intent.CATEGORY_LAUNCHER)
+                && TextUtils.isEmpty(launchIntent.getDataString())) {
+            // An app target can either have no extra or have ItemInfo.EXTRA_PROFILE.
+            Bundle extras = launchIntent.getExtras();
+            return extras == null || extras.keySet().isEmpty();
+        }
+        return false;
+    }
 }
diff --git a/src/com/android/launcher3/util/PackageUserKey.java b/src/com/android/launcher3/util/PackageUserKey.java
index aa11968..f243ca6 100644
--- a/src/com/android/launcher3/util/PackageUserKey.java
+++ b/src/com/android/launcher3/util/PackageUserKey.java
@@ -6,7 +6,6 @@
 import androidx.annotation.Nullable;
 
 import com.android.launcher3.ItemInfo;
-import com.android.launcher3.shortcuts.DeepShortcutManager;
 
 import java.util.Arrays;
 
diff --git a/src/com/android/launcher3/util/Preconditions.java b/src/com/android/launcher3/util/Preconditions.java
index 7ab0d31..ed66422 100644
--- a/src/com/android/launcher3/util/Preconditions.java
+++ b/src/com/android/launcher3/util/Preconditions.java
@@ -16,9 +16,10 @@
 
 package com.android.launcher3.util;
 
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+
 import android.os.Looper;
 
-import com.android.launcher3.LauncherModel;
 import com.android.launcher3.config.FeatureFlags;
 
 /**
@@ -33,7 +34,7 @@
     }
 
     public static void assertWorkerThread() {
-        if (FeatureFlags.IS_DOGFOOD_BUILD && !isSameLooper(LauncherModel.getWorkerLooper())) {
+        if (FeatureFlags.IS_DOGFOOD_BUILD && !isSameLooper(MODEL_EXECUTOR.getLooper())) {
             throw new IllegalStateException();
         }
     }
diff --git a/src/com/android/launcher3/util/SafeCloseable.java b/src/com/android/launcher3/util/SafeCloseable.java
new file mode 100644
index 0000000..ba8ee04
--- /dev/null
+++ b/src/com/android/launcher3/util/SafeCloseable.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3.util;
+
+/**
+ * Extension of closeable which does not throw an exception
+ */
+public interface SafeCloseable extends AutoCloseable {
+
+    @Override
+    void close();
+}
diff --git a/src/com/android/launcher3/util/UiThreadHelper.java b/src/com/android/launcher3/util/UiThreadHelper.java
index cc442f9..f8d1632 100644
--- a/src/com/android/launcher3/util/UiThreadHelper.java
+++ b/src/com/android/launcher3/util/UiThreadHelper.java
@@ -15,14 +15,13 @@
  */
 package com.android.launcher3.util;
 
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
+
 import android.app.Activity;
 import android.content.Context;
 import android.os.Handler;
-import android.os.HandlerThread;
 import android.os.IBinder;
-import android.os.Looper;
 import android.os.Message;
-import android.os.Process;
 import android.view.inputmethod.InputMethodManager;
 
 /**
@@ -30,25 +29,15 @@
  */
 public class UiThreadHelper {
 
-    private static HandlerThread sHandlerThread;
     private static Handler sHandler;
 
     private static final int MSG_HIDE_KEYBOARD = 1;
     private static final int MSG_SET_ORIENTATION = 2;
     private static final int MSG_RUN_COMMAND = 3;
 
-    public static Looper getBackgroundLooper() {
-        if (sHandlerThread == null) {
-            sHandlerThread =
-                    new HandlerThread("UiThreadHelper", Process.THREAD_PRIORITY_FOREGROUND);
-            sHandlerThread.start();
-        }
-        return sHandlerThread.getLooper();
-    }
-
     private static Handler getHandler(Context context) {
         if (sHandler == null) {
-            sHandler = new Handler(getBackgroundLooper(),
+            sHandler = new Handler(UI_HELPER_EXECUTOR.getLooper(),
                     new UiCallbacks(context.getApplicationContext()));
         }
         return sHandler;
diff --git a/src/com/android/launcher3/util/VibratorWrapper.java b/src/com/android/launcher3/util/VibratorWrapper.java
new file mode 100644
index 0000000..04741a1
--- /dev/null
+++ b/src/com/android/launcher3/util/VibratorWrapper.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.util;
+
+import static android.os.VibrationEffect.createPredefined;
+import static android.provider.Settings.System.HAPTIC_FEEDBACK_ENABLED;
+
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
+
+import android.annotation.TargetApi;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.database.ContentObserver;
+import android.os.Build;
+import android.os.VibrationEffect;
+import android.os.Vibrator;
+import android.provider.Settings;
+
+/**
+ * Wrapper around {@link Vibrator} to easily perform haptic feedback where necessary.
+ */
+@TargetApi(Build.VERSION_CODES.Q)
+public class VibratorWrapper {
+
+    public static final MainThreadInitializedObject<VibratorWrapper> INSTANCE =
+            new MainThreadInitializedObject<>(VibratorWrapper::new);
+
+    private static final VibrationEffect EFFECT_CLICK =
+            createPredefined(VibrationEffect.EFFECT_CLICK);
+
+    /**
+     * Haptic when entering overview.
+     */
+    public static final VibrationEffect OVERVIEW_HAPTIC = EFFECT_CLICK;
+
+    private final Vibrator mVibrator;
+    private final boolean mHasVibrator;
+
+    private boolean mIsHapticFeedbackEnabled;
+
+    public VibratorWrapper(Context context) {
+        mVibrator = context.getSystemService(Vibrator.class);
+        mHasVibrator = mVibrator.hasVibrator();
+        if (mHasVibrator) {
+            final ContentResolver resolver = context.getContentResolver();
+            mIsHapticFeedbackEnabled = isHapticFeedbackEnabled(resolver);
+            final ContentObserver observer = new ContentObserver(MAIN_EXECUTOR.getHandler()) {
+                @Override
+                public void onChange(boolean selfChange) {
+                    mIsHapticFeedbackEnabled = isHapticFeedbackEnabled(resolver);
+                }
+            };
+            resolver.registerContentObserver(Settings.System.getUriFor(HAPTIC_FEEDBACK_ENABLED),
+                    false /* notifyForDescendents */, observer);
+        } else {
+            mIsHapticFeedbackEnabled = false;
+        }
+    }
+
+    private boolean isHapticFeedbackEnabled(ContentResolver resolver) {
+        return Settings.System.getInt(resolver, HAPTIC_FEEDBACK_ENABLED, 0) == 1;
+    }
+
+    /** Vibrates with the given effect if haptic feedback is available and enabled. */
+    public void vibrate(VibrationEffect vibrationEffect) {
+        if (mHasVibrator && mIsHapticFeedbackEnabled) {
+            UI_HELPER_EXECUTOR.execute(() -> mVibrator.vibrate(vibrationEffect));
+        }
+    }
+}
diff --git a/src/com/android/launcher3/util/ViewOnDrawExecutor.java b/src/com/android/launcher3/util/ViewOnDrawExecutor.java
index acce308..5a131c8 100644
--- a/src/com/android/launcher3/util/ViewOnDrawExecutor.java
+++ b/src/com/android/launcher3/util/ViewOnDrawExecutor.java
@@ -16,13 +16,14 @@
 
 package com.android.launcher3.util;
 
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+
 import android.os.Process;
 import android.view.View;
 import android.view.View.OnAttachStateChangeListener;
 import android.view.ViewTreeObserver.OnDrawListener;
 
 import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherModel;
 
 import java.util.ArrayList;
 import java.util.concurrent.Executor;
@@ -54,7 +55,9 @@
             mLoadAnimationCompleted = true;
         }
 
-        attachObserver();
+        if (mAttachedView.isAttachedToWindow()) {
+            attachObserver();
+        }
     }
 
     private void attachObserver() {
@@ -66,7 +69,7 @@
     @Override
     public void execute(Runnable command) {
         mTasks.add(command);
-        LauncherModel.setWorkerPriority(Process.THREAD_PRIORITY_BACKGROUND);
+        MODEL_EXECUTOR.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
     }
 
     @Override
@@ -108,7 +111,7 @@
         if (mLauncher != null) {
             mLauncher.clearPendingExecutor(this);
         }
-        LauncherModel.setWorkerPriority(Process.THREAD_PRIORITY_DEFAULT);
+        MODEL_EXECUTOR.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
     }
 
     protected boolean isCompleted() {
diff --git a/src/com/android/launcher3/util/ViewPool.java b/src/com/android/launcher3/util/ViewPool.java
index 8af048d..5b33f18 100644
--- a/src/com/android/launcher3/util/ViewPool.java
+++ b/src/com/android/launcher3/util/ViewPool.java
@@ -21,12 +21,12 @@
 import android.view.View;
 import android.view.ViewGroup;
 
-import com.android.launcher3.util.ViewPool.Reusable;
-
 import androidx.annotation.AnyThread;
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
 
+import com.android.launcher3.util.ViewPool.Reusable;
+
 /**
  * Utility class to maintain a pool of reusable views.
  * During initialization, views are inflated on the background thread.
@@ -58,14 +58,18 @@
         Preconditions.assertUIThread();
         Handler handler = new Handler();
 
+        // LayoutInflater is not thread save as it maintains a global variable 'mConstructorArgs'.
+        // Create a different copy to use on the background thread.
+        LayoutInflater inflater = mInflater.cloneInContext(mInflater.getContext());
+
         // Inflate views on a non looper thread. This allows us to catch errors like calling
         // "new Handler()" in constructor easily.
         new Thread(() -> {
             for (int i = 0; i < initialSize; i++) {
-                T view = inflateNewView();
+                T view = inflateNewView(inflater);
                 handler.post(() -> addToPool(view));
             }
-        }).start();
+        }, "ViewPool-init").start();
     }
 
     @UiThread
@@ -94,12 +98,12 @@
             mCurrentSize--;
             return (T) mPool[mCurrentSize];
         }
-        return inflateNewView();
+        return inflateNewView(mInflater);
     }
 
     @AnyThread
-    private T inflateNewView() {
-        return (T) mInflater.inflate(mLayoutId, mParent, false);
+    private T inflateNewView(LayoutInflater inflater) {
+        return (T) inflater.inflate(mLayoutId, mParent, false);
     }
 
     /**
diff --git a/src/com/android/launcher3/util/WallpaperOffsetInterpolator.java b/src/com/android/launcher3/util/WallpaperOffsetInterpolator.java
index 5c24687..2ad80cf 100644
--- a/src/com/android/launcher3/util/WallpaperOffsetInterpolator.java
+++ b/src/com/android/launcher3/util/WallpaperOffsetInterpolator.java
@@ -1,5 +1,7 @@
 package com.android.launcher3.util;
 
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
+
 import android.app.WallpaperManager;
 import android.content.BroadcastReceiver;
 import android.content.Context;
@@ -198,7 +200,7 @@
         private float mOffsetX;
 
         public OffsetHandler(Context context) {
-            super(UiThreadHelper.getBackgroundLooper());
+            super(UI_HELPER_EXECUTOR.getLooper());
             mInterpolator = Interpolators.DEACCEL_1_5;
             mWM = WallpaperManager.getInstance(context);
         }
diff --git a/src/com/android/launcher3/views/AbstractSlideInView.java b/src/com/android/launcher3/views/AbstractSlideInView.java
index a4518ba..195a77a 100644
--- a/src/com/android/launcher3/views/AbstractSlideInView.java
+++ b/src/com/android/launcher3/views/AbstractSlideInView.java
@@ -32,13 +32,14 @@
 import com.android.launcher3.Launcher;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.Interpolators;
-import com.android.launcher3.touch.SwipeDetector;
+import com.android.launcher3.touch.BaseSwipeDetector;
+import com.android.launcher3.touch.SingleAxisSwipeDetector;
 
 /**
  * Extension of AbstractFloatingView with common methods for sliding in from bottom
  */
 public abstract class AbstractSlideInView extends AbstractFloatingView
-        implements SwipeDetector.Listener {
+        implements SingleAxisSwipeDetector.Listener {
 
     protected static Property<AbstractSlideInView, Float> TRANSLATION_SHIFT =
             new Property<AbstractSlideInView, Float>(Float.class, "translationShift") {
@@ -57,7 +58,7 @@
     protected static final float TRANSLATION_SHIFT_OPENED = 0f;
 
     protected final Launcher mLauncher;
-    protected final SwipeDetector mSwipeDetector;
+    protected final SingleAxisSwipeDetector mSwipeDetector;
     protected final ObjectAnimator mOpenCloseAnimator;
 
     protected View mContent;
@@ -73,7 +74,8 @@
         mLauncher = Launcher.getLauncher(context);
 
         mScrollInterpolator = Interpolators.SCROLL_CUBIC;
-        mSwipeDetector = new SwipeDetector(context, this, SwipeDetector.VERTICAL);
+        mSwipeDetector = new SingleAxisSwipeDetector(context, this,
+                SingleAxisSwipeDetector.VERTICAL);
 
         mOpenCloseAnimator = ObjectAnimator.ofPropertyValuesHolder(this);
         mOpenCloseAnimator.addListener(new AnimatorListenerAdapter() {
@@ -97,7 +99,7 @@
         }
 
         int directionsToDetectScroll = mSwipeDetector.isIdleState() ?
-                SwipeDetector.DIRECTION_NEGATIVE : 0;
+                SingleAxisSwipeDetector.DIRECTION_NEGATIVE : 0;
         mSwipeDetector.setDetectableScrollConditions(
                 directionsToDetectScroll, false);
         mSwipeDetector.onTouchEvent(ev);
@@ -122,7 +124,7 @@
         return mIsOpen && mOpenCloseAnimator.isRunning();
     }
 
-    /* SwipeDetector.Listener */
+    /* SingleAxisSwipeDetector.Listener */
 
     @Override
     public void onDragStart(boolean start) { }
@@ -136,17 +138,17 @@
     }
 
     @Override
-    public void onDragEnd(float velocity, boolean fling) {
-        if ((fling && velocity > 0) || mTranslationShift > 0.5f) {
+    public void onDragEnd(float velocity) {
+        if ((mSwipeDetector.isFling(velocity) && velocity > 0) || mTranslationShift > 0.5f) {
             mScrollInterpolator = scrollInterpolatorForVelocity(velocity);
-            mOpenCloseAnimator.setDuration(SwipeDetector.calculateDuration(
+            mOpenCloseAnimator.setDuration(BaseSwipeDetector.calculateDuration(
                     velocity, TRANSLATION_SHIFT_CLOSED - mTranslationShift));
             close(true);
         } else {
             mOpenCloseAnimator.setValues(PropertyValuesHolder.ofFloat(
                     TRANSLATION_SHIFT, TRANSLATION_SHIFT_OPENED));
             mOpenCloseAnimator.setDuration(
-                    SwipeDetector.calculateDuration(velocity, mTranslationShift))
+                    BaseSwipeDetector.calculateDuration(velocity, mTranslationShift))
                     .setInterpolator(Interpolators.DEACCEL);
             mOpenCloseAnimator.start();
         }
diff --git a/src/com/android/launcher3/views/BaseDragLayer.java b/src/com/android/launcher3/views/BaseDragLayer.java
index c08b659..e43fc8a 100644
--- a/src/com/android/launcher3/views/BaseDragLayer.java
+++ b/src/com/android/launcher3/views/BaseDragLayer.java
@@ -170,10 +170,8 @@
             // Only look for controllers if we are not dispatching from gesture area and proxy is
             // not active
             mActiveController = findControllerToHandleTouch(ev);
-
-            if (mActiveController != null) return true;
         }
-        return false;
+        return mActiveController != null;
     }
 
     @Override
@@ -465,7 +463,7 @@
     }
 
     public void dump(String prefix, PrintWriter writer) {
-        writer.println(prefix + "DragLayer");
+        writer.println(prefix + "DragLayer:");
         if (mActiveController != null) {
             writer.println(prefix + "\tactiveController: " + mActiveController);
             mActiveController.dump(prefix + "\t", writer);
diff --git a/src/com/android/launcher3/views/FloatingIconView.java b/src/com/android/launcher3/views/FloatingIconView.java
index f728a67..49d94f0 100644
--- a/src/com/android/launcher3/views/FloatingIconView.java
+++ b/src/com/android/launcher3/views/FloatingIconView.java
@@ -22,6 +22,7 @@
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.config.FeatureFlags.ADAPTIVE_ICON_WINDOW_ANIM;
 import static com.android.launcher3.states.RotationHelper.REQUEST_LOCK;
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -41,7 +42,6 @@
 import android.graphics.drawable.Drawable;
 import android.os.Build;
 import android.os.CancellationSignal;
-import android.os.Handler;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.View;
@@ -50,11 +50,17 @@
 import android.view.ViewTreeObserver.OnGlobalLayoutListener;
 import android.widget.ImageView;
 
+import androidx.annotation.Nullable;
+import androidx.annotation.UiThread;
+import androidx.annotation.WorkerThread;
+import androidx.dynamicanimation.animation.FloatPropertyCompat;
+import androidx.dynamicanimation.animation.SpringAnimation;
+import androidx.dynamicanimation.animation.SpringForce;
+
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.InsettableFrameLayout.LayoutParams;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherModel;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.dragndrop.DragLayer;
@@ -66,13 +72,6 @@
 import com.android.launcher3.popup.SystemShortcut;
 import com.android.launcher3.shortcuts.DeepShortcutView;
 
-import androidx.annotation.Nullable;
-import androidx.annotation.UiThread;
-import androidx.annotation.WorkerThread;
-import androidx.dynamicanimation.animation.FloatPropertyCompat;
-import androidx.dynamicanimation.animation.SpringAnimation;
-import androidx.dynamicanimation.animation.SpringForce;
-
 /**
  * A view that is created to look like another view with the purpose of creating fluid animations.
  */
@@ -561,7 +560,7 @@
      * Checks if the icon result is loaded. If true, we set the icon immediately. Else, we add a
      * callback to set the icon once the icon result is loaded.
      */
-    private void checkIconResult(View originalView, boolean isOpening) {
+    private void checkIconResult(View originalView) {
         CancellationSignal cancellationSignal = new CancellationSignal();
 
         if (mIconLoadResult == null) {
@@ -573,9 +572,7 @@
             if (mIconLoadResult.isIconLoaded) {
                 setIcon(originalView, mIconLoadResult.drawable, mIconLoadResult.badge,
                         mIconLoadResult.iconOffset);
-                if (isOpening) {
-                    hideOriginalView(originalView);
-                }
+                hideOriginalView(originalView);
             } else {
                 mIconLoadResult.onIconLoaded = () -> {
                     if (cancellationSignal.isCanceled()) {
@@ -584,12 +581,8 @@
 
                     setIcon(originalView, mIconLoadResult.drawable, mIconLoadResult.badge,
                             mIconLoadResult.iconOffset);
-
                     setVisibility(VISIBLE);
-                    if (isOpening) {
-                        // Delay swapping views until the icon is loaded to prevent a flash.
-                        hideOriginalView(originalView);
-                    }
+                    hideOriginalView(originalView);
                 };
                 mLoadIconSignal = cancellationSignal;
             }
@@ -597,9 +590,9 @@
     }
 
     private void hideOriginalView(View originalView) {
-        if (originalView instanceof BubbleTextView) {
-            ((BubbleTextView) originalView).setIconVisible(false);
-            ((BubbleTextView) originalView).setForceHideDot(true);
+        if (originalView instanceof IconLabelDotView) {
+            ((IconLabelDotView) originalView).setIconVisible(false);
+            ((IconLabelDotView) originalView).setForceHideDot(true);
         } else {
             originalView.setVisibility(INVISIBLE);
         }
@@ -675,6 +668,9 @@
     }
 
     public void fastFinish() {
+        if (mLoadIconSignal != null) {
+            mLoadIconSignal.cancel();
+        }
         if (mEndRunnable != null) {
             mEndRunnable.run();
             mEndRunnable = null;
@@ -690,6 +686,10 @@
         if (mIconLoadResult != null && mIconLoadResult.isIconLoaded) {
             setVisibility(View.VISIBLE);
         }
+        if (!mIsOpening) {
+            // When closing an app, we want the item on the workspace to be invisible immediately
+            hideOriginalView(mOriginalIcon);
+        }
     }
 
     @Override
@@ -722,7 +722,7 @@
     @UiThread
     public static IconLoadResult fetchIcon(Launcher l, View v, ItemInfo info, boolean isOpening) {
         IconLoadResult result = new IconLoadResult(info);
-        new Handler(LauncherModel.getWorkerLooper()).postAtFrontOfQueue(() -> {
+        MODEL_EXECUTOR.getHandler().postAtFrontOfQueue(() -> {
             RectF position = new RectF();
             getLocationBoundsForView(l, v, isOpening, position);
             getIconResult(l, v, info, position, result);
@@ -768,11 +768,6 @@
         // Match the position of the original view.
         view.matchPositionOf(launcher, originalView, isOpening, positionOut);
 
-        // Must be called after matchPositionOf so that we know what size to load.
-        if (shouldLoadIcon) {
-            view.checkIconResult(originalView, isOpening);
-        }
-
         // We need to add it to the overlay, but keep it invisible until animation starts..
         view.setVisibility(INVISIBLE);
         parent.addView(view);
@@ -799,6 +794,14 @@
                 view.finish(dragLayer);
             }
         };
+
+        // Must be called after matchPositionOf so that we know what size to load.
+        // Must be called after the fastFinish listener and end runnable is created so that
+        // the icon is not left in a hidden state.
+        if (shouldLoadIcon) {
+            view.checkIconResult(originalView);
+        }
+
         return view;
     }
 
@@ -840,6 +843,7 @@
                 @Override
                 public void onAnimationStart(Animator animation) {
                     btv.setIconVisible(true);
+                    btv.setForceHideDot(true);
                 }
             });
             fade.play(ObjectAnimator.ofInt(btv.getIcon(), DRAWABLE_ALPHA, 0, 255));
diff --git a/src/com/android/launcher3/views/ScrimView.java b/src/com/android/launcher3/views/ScrimView.java
index da1df3f..9f59d78 100644
--- a/src/com/android/launcher3/views/ScrimView.java
+++ b/src/com/android/launcher3/views/ScrimView.java
@@ -288,6 +288,7 @@
             anim.addUpdateListener((v) -> invalidate(invalidateRegion));
             getOverlay().add(drawable);
             anim.start();
+            return true;
         }
         return value;
     }
diff --git a/src/com/android/launcher3/widget/LauncherAppWidgetHostView.java b/src/com/android/launcher3/widget/LauncherAppWidgetHostView.java
index dce839f..f3fd7ca 100644
--- a/src/com/android/launcher3/widget/LauncherAppWidgetHostView.java
+++ b/src/com/android/launcher3/widget/LauncherAppWidgetHostView.java
@@ -44,6 +44,7 @@
 import com.android.launcher3.StylusEventHelper;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.dragndrop.DragLayer;
+import com.android.launcher3.util.Executors;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.BaseDragLayer.TouchCompleteListener;
 
@@ -96,7 +97,7 @@
         setBackgroundResource(R.drawable.widget_internal_focus_bg);
 
         if (Utilities.ATLEAST_OREO) {
-            setExecutor(Utilities.THREAD_POOL_EXECUTOR);
+            setExecutor(Executors.THREAD_POOL_EXECUTOR);
         }
         if (Utilities.ATLEAST_Q && Themes.getAttrBoolean(mLauncher, R.attr.isWorkspaceDarkText)) {
             setOnLightBackground(true);
@@ -332,12 +333,7 @@
         if (shouldRegisterAutoAdvance != mIsAutoAdvanceRegistered) {
             mIsAutoAdvanceRegistered = shouldRegisterAutoAdvance;
             if (mAutoAdvanceRunnable == null) {
-                mAutoAdvanceRunnable = new Runnable() {
-                    @Override
-                    public void run() {
-                        runAutoAdvance();
-                    }
-                };
+                mAutoAdvanceRunnable = this::runAutoAdvance;
             }
 
             handler.removeCallbacks(mAutoAdvanceRunnable);
diff --git a/src/com/android/launcher3/widget/WidgetCell.java b/src/com/android/launcher3/widget/WidgetCell.java
index dc4af8c..6944879 100644
--- a/src/com/android/launcher3/widget/WidgetCell.java
+++ b/src/com/android/launcher3/widget/WidgetCell.java
@@ -37,6 +37,7 @@
 import com.android.launcher3.StylusEventHelper;
 import com.android.launcher3.WidgetPreviewLoader;
 import com.android.launcher3.graphics.DrawableFactory;
+import com.android.launcher3.icons.BaseIconFactory;
 import com.android.launcher3.model.WidgetItem;
 
 /**
@@ -80,6 +81,7 @@
     private Bitmap mDeferredBitmap;
 
     protected final BaseActivity mActivity;
+    protected DeviceProfile mDeviceProfile;
 
     public WidgetCell(Context context) {
         this(context, null);
@@ -93,6 +95,7 @@
         super(context, attrs, defStyle);
 
         mActivity = BaseActivity.fromContext(context);
+        mDeviceProfile = mActivity.getDeviceProfile();
         mStylusEventHelper = new StylusEventHelper(new SimpleOnStylusPressListener(this), this);
 
         setContainerWidth();
@@ -102,8 +105,7 @@
     }
 
     private void setContainerWidth() {
-        DeviceProfile profile = mActivity.getDeviceProfile();
-        mCellSize = (int) (profile.cellWidthPx * WIDTH_SCALE);
+        mCellSize = (int) (mDeviceProfile.allAppsCellWidthPx * WIDTH_SCALE);
         mPresetPreviewSize = (int) (mCellSize * PREVIEW_SCALE);
     }
 
@@ -180,8 +182,10 @@
             return;
         }
         if (bitmap != null) {
-            mWidgetImage.setBitmap(bitmap, DrawableFactory.INSTANCE.get(getContext())
-                    .getBadgeForUser(mItem.user, getContext()));
+            mWidgetImage.setBitmap(bitmap,
+                    DrawableFactory.INSTANCE.get(getContext()).getBadgeForUser(mItem.user,
+                            getContext(), BaseIconFactory.getBadgeSizeForIconSize(
+                                    mDeviceProfile.allAppsIconSizePx)));
             if (mAnimatePreview) {
                 mWidgetImage.setAlpha(0f);
                 ViewPropertyAnimator anim = mWidgetImage.animate();
diff --git a/src/com/android/launcher3/widget/custom/CustomWidgetManager.java b/src/com/android/launcher3/widget/custom/CustomWidgetManager.java
new file mode 100644
index 0000000..f20c83d
--- /dev/null
+++ b/src/com/android/launcher3/widget/custom/CustomWidgetManager.java
@@ -0,0 +1,178 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3.widget.custom;
+
+import static com.android.launcher3.LauncherAppWidgetProviderInfo.CLS_CUSTOM_WIDGET_PREFIX;
+
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProviderInfo;
+import android.content.ComponentName;
+import android.content.Context;
+import android.os.Parcel;
+import android.os.Process;
+import android.util.SparseArray;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.android.launcher3.LauncherAppWidgetInfo;
+import com.android.launcher3.LauncherAppWidgetProviderInfo;
+import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
+import com.android.launcher3.util.MainThreadInitializedObject;
+import com.android.launcher3.util.PackageUserKey;
+import com.android.launcher3.widget.LauncherAppWidgetHostView;
+import com.android.systemui.plugins.CustomWidgetPlugin;
+import com.android.systemui.plugins.PluginListener;
+
+import java.lang.ref.WeakReference;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Consumer;
+
+/**
+ * CustomWidgetManager handles custom widgets implemented as a plugin.
+ */
+public class CustomWidgetManager implements PluginListener<CustomWidgetPlugin> {
+
+    public static final MainThreadInitializedObject<CustomWidgetManager> INSTANCE =
+            new MainThreadInitializedObject<>(CustomWidgetManager::new);
+
+    /**
+     * auto provider Id is an ever-increasing number that serves as the providerId whenever a new
+     * custom widget has been connected.
+     */
+    private int mAutoProviderId = 0;
+    private final SparseArray<CustomWidgetPlugin> mPlugins;
+    private final SparseArray<WeakReference<Context>> mContexts;
+    private final List<CustomAppWidgetProviderInfo> mCustomWidgets;
+    private final SparseArray<ComponentName> mWidgetsIdMap;
+    private Consumer<PackageUserKey> mWidgetRefreshCallback;
+
+    private CustomWidgetManager(Context context) {
+        mPlugins = new SparseArray<>();
+        mContexts = new SparseArray<>();
+        mCustomWidgets = new ArrayList<>();
+        mWidgetsIdMap = new SparseArray<>();
+        PluginManagerWrapper.INSTANCE.get(context)
+                .addPluginListener(this, CustomWidgetPlugin.class, true);
+    }
+
+    @Override
+    public void onPluginConnected(CustomWidgetPlugin plugin, Context context) {
+        mPlugins.put(mAutoProviderId, plugin);
+        mContexts.put(mAutoProviderId, new WeakReference<>(context));
+        List<AppWidgetProviderInfo> providers = AppWidgetManager.getInstance(context)
+                .getInstalledProvidersForProfile(Process.myUserHandle());
+        if (providers.isEmpty()) return;
+        Parcel parcel = Parcel.obtain();
+        providers.get(0).writeToParcel(parcel, 0);
+        parcel.setDataPosition(0);
+        CustomAppWidgetProviderInfo info = newInfo(mAutoProviderId, plugin, parcel, context);
+        parcel.recycle();
+        mCustomWidgets.add(info);
+        mWidgetsIdMap.put(mAutoProviderId, info.provider);
+        mWidgetRefreshCallback.accept(null);
+        mAutoProviderId++;
+    }
+
+    @Override
+    public void onPluginDisconnected(CustomWidgetPlugin plugin) {
+        int providerId = findProviderId(plugin);
+        if (providerId == -1) return;
+        mPlugins.remove(providerId);
+        mContexts.remove(providerId);
+        mCustomWidgets.remove(getWidgetProvider(providerId));
+        mWidgetsIdMap.remove(providerId);
+    }
+
+    /**
+     * Inject a callback function to refresh the widgets.
+     */
+    public void setWidgetRefreshCallback(Consumer<PackageUserKey> cb) {
+        mWidgetRefreshCallback = cb;
+    }
+
+    /**
+     * Callback method to inform a plugin it's corresponding widget has been created.
+     */
+    public void onViewCreated(LauncherAppWidgetHostView view) {
+        CustomAppWidgetProviderInfo info = (CustomAppWidgetProviderInfo) view.getAppWidgetInfo();
+        CustomWidgetPlugin plugin = mPlugins.get(info.providerId);
+        WeakReference<Context> context = mContexts.get(info.providerId);
+        if (plugin == null) return;
+        plugin.onViewCreated(context == null ? null : context.get(), view);
+    }
+
+    /**
+     * Returns the list of custom widgets.
+     */
+    @NonNull
+    public List<CustomAppWidgetProviderInfo> getCustomWidgets() {
+        return mCustomWidgets;
+    }
+
+    /**
+     * Returns the widget id for a specific provider.
+     */
+    public int getWidgetIdForCustomProvider(@NonNull ComponentName provider) {
+        int index = mWidgetsIdMap.indexOfValue(provider);
+        if (index >= 0) {
+            return LauncherAppWidgetInfo.CUSTOM_WIDGET_ID - mWidgetsIdMap.keyAt(index);
+        } else {
+            return AppWidgetManager.INVALID_APPWIDGET_ID;
+        }
+    }
+
+    /**
+     * Returns the widget provider in respect to given widget id.
+     */
+    @Nullable
+    public LauncherAppWidgetProviderInfo getWidgetProvider(int widgetId) {
+        ComponentName cn = mWidgetsIdMap.get(LauncherAppWidgetInfo.CUSTOM_WIDGET_ID - widgetId);
+        for (LauncherAppWidgetProviderInfo info : mCustomWidgets) {
+            if (info.provider.equals(cn)) return info;
+        }
+        return null;
+    }
+
+    private static CustomAppWidgetProviderInfo newInfo(int providerId, CustomWidgetPlugin plugin,
+            Parcel parcel, Context context) {
+        CustomAppWidgetProviderInfo info = new CustomAppWidgetProviderInfo(
+                parcel, false, providerId);
+        info.provider = new ComponentName(
+                context.getPackageName(), CLS_CUSTOM_WIDGET_PREFIX + providerId);
+
+        info.label = plugin.getLabel(context);
+        info.resizeMode = plugin.getResizeMode(context);
+
+        info.spanX = plugin.getSpanX(context);
+        info.spanY = plugin.getSpanY(context);
+        info.minSpanX = plugin.getMinSpanX(context);
+        info.minSpanY = plugin.getMinSpanY(context);
+        return info;
+    }
+
+    private int findProviderId(CustomWidgetPlugin plugin) {
+        for (int i = 0; i < mPlugins.size(); i++) {
+            int providerId = mPlugins.keyAt(i);
+            if (mPlugins.get(providerId) == plugin) {
+                return providerId;
+            }
+        }
+        return -1;
+    }
+}
diff --git a/src/com/android/launcher3/widget/custom/CustomWidgetParser.java b/src/com/android/launcher3/widget/custom/CustomWidgetParser.java
deleted file mode 100644
index 00720c4..0000000
--- a/src/com/android/launcher3/widget/custom/CustomWidgetParser.java
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.launcher3.widget.custom;
-
-import android.appwidget.AppWidgetManager;
-import android.appwidget.AppWidgetProviderInfo;
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.res.TypedArray;
-import android.content.res.XmlResourceParser;
-import android.os.Parcel;
-import android.os.Process;
-import android.util.SparseArray;
-import android.util.Xml;
-
-import com.android.launcher3.LauncherAppWidgetInfo;
-import com.android.launcher3.LauncherAppWidgetProviderInfo;
-import com.android.launcher3.R;
-
-import org.xmlpull.v1.XmlPullParser;
-import org.xmlpull.v1.XmlPullParserException;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-
-import static com.android.launcher3.LauncherAppWidgetProviderInfo.CLS_CUSTOM_WIDGET_PREFIX;
-
-/**
- * Utility class to parse {@ink CustomAppWidgetProviderInfo} definitions from xml
- */
-public class CustomWidgetParser {
-
-    private static List<LauncherAppWidgetProviderInfo> sCustomWidgets;
-    private static SparseArray<ComponentName> sWidgetsIdMap;
-
-    public static List<LauncherAppWidgetProviderInfo> getCustomWidgets(Context context) {
-        if (sCustomWidgets == null) {
-            // Synchronization not needed as it it safe to load multiple times
-            parseCustomWidgets(context);
-        }
-
-        return sCustomWidgets;
-    }
-
-    public static int getWidgetIdForCustomProvider(Context context, ComponentName provider) {
-        if (sWidgetsIdMap == null) {
-            parseCustomWidgets(context);
-        }
-        int index = sWidgetsIdMap.indexOfValue(provider);
-        if (index >= 0) {
-            return LauncherAppWidgetInfo.CUSTOM_WIDGET_ID - sWidgetsIdMap.keyAt(index);
-        } else {
-            return AppWidgetManager.INVALID_APPWIDGET_ID;
-        }
-    }
-
-    public static LauncherAppWidgetProviderInfo getWidgetProvider(Context context, int widgetId) {
-        if (sWidgetsIdMap == null || sCustomWidgets == null) {
-            parseCustomWidgets(context);
-        }
-        ComponentName cn = sWidgetsIdMap.get(LauncherAppWidgetInfo.CUSTOM_WIDGET_ID - widgetId);
-        for (LauncherAppWidgetProviderInfo info : sCustomWidgets) {
-            if (info.provider.equals(cn)) {
-                return info;
-            }
-        }
-        return null;
-    }
-
-    private static void parseCustomWidgets(Context context) {
-        ArrayList<LauncherAppWidgetProviderInfo> widgets = new ArrayList<>();
-        SparseArray<ComponentName> idMap = new SparseArray<>();
-
-        List<AppWidgetProviderInfo> providers = AppWidgetManager.getInstance(context)
-                .getInstalledProvidersForProfile(Process.myUserHandle());
-        if (providers.isEmpty()) {
-            sCustomWidgets = widgets;
-            sWidgetsIdMap = idMap;
-            return;
-        }
-
-        Parcel parcel = Parcel.obtain();
-        providers.get(0).writeToParcel(parcel, 0);
-
-        try (XmlResourceParser parser = context.getResources().getXml(R.xml.custom_widgets)) {
-            final int depth = parser.getDepth();
-            int type;
-
-            while (((type = parser.next()) != XmlPullParser.END_TAG ||
-                    parser.getDepth() > depth) && type != XmlPullParser.END_DOCUMENT) {
-                if ((type == XmlPullParser.START_TAG) && "widget".equals(parser.getName())) {
-                    TypedArray a = context.obtainStyledAttributes(
-                            Xml.asAttributeSet(parser), R.styleable.CustomAppWidgetProviderInfo);
-
-                    parcel.setDataPosition(0);
-                    CustomAppWidgetProviderInfo info = newInfo(a, parcel, context);
-                    widgets.add(info);
-                    a.recycle();
-
-                    idMap.put(info.providerId, info.provider);
-                }
-            }
-        } catch (IOException | XmlPullParserException e) {
-            throw new RuntimeException(e);
-        }
-        parcel.recycle();
-        sCustomWidgets = widgets;
-        sWidgetsIdMap = idMap;
-    }
-
-    private static CustomAppWidgetProviderInfo newInfo(TypedArray a, Parcel parcel, Context context) {
-        int providerId = a.getInt(R.styleable.CustomAppWidgetProviderInfo_providerId, 0);
-        CustomAppWidgetProviderInfo info = new CustomAppWidgetProviderInfo(parcel, false, providerId);
-        info.provider = new ComponentName(context.getPackageName(), CLS_CUSTOM_WIDGET_PREFIX + providerId);
-
-        info.label = a.getString(R.styleable.CustomAppWidgetProviderInfo_android_label);
-        info.initialLayout = a.getResourceId(R.styleable.CustomAppWidgetProviderInfo_android_initialLayout, 0);
-        info.icon = a.getResourceId(R.styleable.CustomAppWidgetProviderInfo_android_icon, 0);
-        info.previewImage = a.getResourceId(R.styleable.CustomAppWidgetProviderInfo_android_previewImage, 0);
-        info.resizeMode = a.getInt(R.styleable.CustomAppWidgetProviderInfo_android_resizeMode, 0);
-
-        info.spanX = a.getInt(R.styleable.CustomAppWidgetProviderInfo_numColumns, 1);
-        info.spanY = a.getInt(R.styleable.CustomAppWidgetProviderInfo_numRows, 1);
-        info.minSpanX = a.getInt(R.styleable.CustomAppWidgetProviderInfo_numMinColumns, 1);
-        info.minSpanY = a.getInt(R.styleable.CustomAppWidgetProviderInfo_numMinRows, 1);
-        return info;
-    }
-}
diff --git a/src_plugins/com/android/systemui/plugins/AppLaunchEventsPlugin.java b/src_plugins/com/android/systemui/plugins/AppLaunchEventsPlugin.java
new file mode 100644
index 0000000..15a0ffa
--- /dev/null
+++ b/src_plugins/com/android/systemui/plugins/AppLaunchEventsPlugin.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.systemui.plugins;
+
+import android.content.ComponentName;
+import android.os.UserHandle;
+
+import com.android.systemui.plugins.annotations.ProvidesInterface;
+
+/**
+ * Plugin interface which sends app launch events.
+ */
+@ProvidesInterface(action = AppLaunchEventsPlugin.ACTION, version = AppLaunchEventsPlugin.VERSION)
+public interface AppLaunchEventsPlugin extends Plugin {
+    String ACTION = "com.android.systemui.action.PLUGIN_APP_EVENTS";
+    int VERSION = 1;
+
+    /**
+     * Receives onStartShortcut event from
+     * {@link com.android.launcher3.appprediction.PredictionAppTracker}.
+     */
+    void onStartShortcut(String packageName, String shortcutId, UserHandle user, String container);
+
+    /**
+     * Receives onStartApp event from
+     * {@link com.android.launcher3.appprediction.PredictionAppTracker}.
+     */
+    void onStartApp(ComponentName componentName, UserHandle user, String container);
+
+    /**
+     * Receives onDismissApp event from
+     * {@link com.android.launcher3.appprediction.PredictionAppTracker}.
+     */
+    void onDismissApp(ComponentName componentName, UserHandle user, String container);
+
+    /**
+     * Receives onReturnedToHome event from
+     * {@link com.android.launcher3.appprediction.PredictionAppTracker}.
+     */
+    void onReturnedToHome();
+}
diff --git a/src_plugins/com/android/systemui/plugins/CustomWidgetPlugin.java b/src_plugins/com/android/systemui/plugins/CustomWidgetPlugin.java
new file mode 100644
index 0000000..47aa94b
--- /dev/null
+++ b/src_plugins/com/android/systemui/plugins/CustomWidgetPlugin.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.plugins;
+
+import android.appwidget.AppWidgetHostView;
+import android.content.Context;
+
+import com.android.systemui.plugins.annotations.ProvidesInterface;
+
+/**
+ * Implement this plugin interface to add a custom widget.
+ */
+@ProvidesInterface(action = CustomWidgetPlugin.ACTION, version = CustomWidgetPlugin.VERSION)
+public interface CustomWidgetPlugin extends Plugin {
+
+    String ACTION = "com.android.systemui.action.PLUGIN_CUSTOM_WIDGET";
+    int VERSION = 1;
+
+    /**
+     * The label to display to the user in the AppWidget picker.
+     */
+    String getLabel(Context context);
+
+    /**
+     * The default width of the widget when added to a host, in dp. The widget will get
+     * at least this width, and will often be given more, depending on the host.
+     */
+    int getSpanX(Context context);
+
+    /**
+     * The default height of the widget when added to a host, in dp. The widget will get
+     * at least this height, and will often be given more, depending on the host.
+     */
+    int getSpanY(Context context);
+
+    /**
+     * Minimum width (in dp) which the widget can be resized to. This field has no effect if it
+     * is greater than minWidth or if horizontal resizing isn't enabled.
+     */
+    int getMinSpanX(Context context);
+
+    /**
+     * Minimum height (in dp) which the widget can be resized to. This field has no effect if it
+     * is greater than minHeight or if vertical resizing isn't enabled.
+     */
+    int getMinSpanY(Context context);
+
+    /**
+     * The rules by which a widget can be resized.
+     */
+    int getResizeMode(Context context);
+
+    /**
+     * Notify the plugin that container of the widget has been rendered, where the custom widget
+     * can be attached to.
+     */
+    void onViewCreated(Context context, AppWidgetHostView parent);
+}
diff --git a/src_plugins/com/android/systemui/plugins/HotseatPlugin.java b/src_plugins/com/android/systemui/plugins/HotseatPlugin.java
new file mode 100644
index 0000000..1264e0d
--- /dev/null
+++ b/src_plugins/com/android/systemui/plugins/HotseatPlugin.java
@@ -0,0 +1,20 @@
+package com.android.systemui.plugins;
+
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.android.systemui.plugins.annotations.ProvidesInterface;
+
+/**
+ * Implement this plugin interface to add a sub-view in the Hotseat.
+ */
+@ProvidesInterface(action = HotseatPlugin.ACTION, version = HotseatPlugin.VERSION)
+public interface HotseatPlugin extends Plugin {
+    String ACTION = "com.android.systemui.action.PLUGIN_HOTSEAT";
+    int VERSION = 1;
+
+    /**
+     * Creates a plugin view which will be added to the Hotseat.
+     */
+    View createView(ViewGroup parent);
+}
diff --git a/src_plugins/com/android/systemui/plugins/OverviewScreenshotActions.java b/src_plugins/com/android/systemui/plugins/OverviewScreenshotActions.java
new file mode 100644
index 0000000..8d9c0f4
--- /dev/null
+++ b/src_plugins/com/android/systemui/plugins/OverviewScreenshotActions.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.plugins;
+
+import android.app.Activity;
+import android.graphics.Bitmap;
+import android.view.ViewGroup;
+
+import com.android.systemui.plugins.annotations.ProvidesInterface;
+
+/**
+ * Implement this interface to add action buttons for overview screenshots, e.g. share, edit etc.
+ */
+@ProvidesInterface(
+        action = OverviewScreenshotActions.ACTION, version = OverviewScreenshotActions.VERSION)
+public interface OverviewScreenshotActions extends Plugin {
+    String ACTION = "com.android.systemui.action.PLUGIN_OVERVIEW_SCREENSHOT_ACTIONS";
+    int VERSION = 1;
+
+    /**
+     * Setup the actions for the screenshot, including edit, save, etc.
+     * @param parent The parent view to add buttons on.
+     * @param screenshot The screenshot we will do actions on.
+     * @param activity THe host activity.
+     */
+    void setupActions(ViewGroup parent, Bitmap screenshot, Activity activity);
+}
diff --git a/src_plugins/com/android/systemui/plugins/RecentsExtraCard.java b/src_plugins/com/android/systemui/plugins/RecentsExtraCard.java
new file mode 100644
index 0000000..0ebea3d
--- /dev/null
+++ b/src_plugins/com/android/systemui/plugins/RecentsExtraCard.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.plugins;
+
+import android.app.Activity;
+import android.content.Context;
+import android.widget.FrameLayout;
+
+import com.android.systemui.plugins.annotations.ProvidesInterface;
+
+/**
+ * Implement this interface to allow extra card on recents overview.
+ */
+@ProvidesInterface(action = RecentsExtraCard.ACTION, version = RecentsExtraCard.VERSION)
+public interface RecentsExtraCard extends Plugin {
+
+    String ACTION = "com.android.systemui.action.PLUGIN_RECENTS_EXTRA_CARD";
+    int VERSION = 1;
+
+    /**
+     * Sets up the recents overview extra card and fills in data.
+     *
+     * @param context Plugin context
+     * @param frameLayout PlaceholderView
+     * @param activity Recents activity to hold extra view
+     */
+    void setupView(Context context, FrameLayout frameLayout, Activity activity);
+}
diff --git a/src_plugins/com/android/systemui/plugins/UserEventPlugin.java b/src_plugins/com/android/systemui/plugins/UserEventPlugin.java
new file mode 100644
index 0000000..0e3664a
--- /dev/null
+++ b/src_plugins/com/android/systemui/plugins/UserEventPlugin.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.plugins;
+
+import com.android.systemui.plugins.annotations.ProvidesInterface;
+
+/**
+ * Implement this plugin interface to access user event log on the device for prototype purpose.
+ * NOTE: plugin is for internal prototype only and is not visible in production environment.
+ */
+@ProvidesInterface(action = UserEventPlugin.ACTION, version = UserEventPlugin.VERSION)
+public interface UserEventPlugin extends Plugin {
+    String ACTION = "com.android.launcher3.action.PLUGIN_USER_EVENT_LOG";
+    int VERSION = 1;
+
+    /**
+     * Callback to be triggered whenever an user event occurs.
+     */
+    void onUserEvent(Object event);
+}
diff --git a/src_shortcuts_overrides/com/android/launcher3/model/LoaderResults.java b/src_shortcuts_overrides/com/android/launcher3/model/LoaderResults.java
index 1710aef..789bfd8 100644
--- a/src_shortcuts_overrides/com/android/launcher3/model/LoaderResults.java
+++ b/src_shortcuts_overrides/com/android/launcher3/model/LoaderResults.java
@@ -16,9 +16,8 @@
 
 package com.android.launcher3.model;
 
-import com.android.launcher3.AllAppsList;
 import com.android.launcher3.LauncherAppState;
-import com.android.launcher3.LauncherModel.Callbacks;
+import com.android.launcher3.model.BgDataModel.Callbacks;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.widget.WidgetListRowEntry;
 
diff --git a/src_shortcuts_overrides/com/android/launcher3/shortcuts/DeepShortcutManager.java b/src_shortcuts_overrides/com/android/launcher3/shortcuts/DeepShortcutManager.java
index 09b1890..57f4164 100644
--- a/src_shortcuts_overrides/com/android/launcher3/shortcuts/DeepShortcutManager.java
+++ b/src_shortcuts_overrides/com/android/launcher3/shortcuts/DeepShortcutManager.java
@@ -43,35 +43,27 @@
             | ShortcutQuery.FLAG_MATCH_MANIFEST | ShortcutQuery.FLAG_MATCH_PINNED;
 
     private static DeepShortcutManager sInstance;
-    private static final Object sInstanceLock = new Object();
 
     public static DeepShortcutManager getInstance(Context context) {
-        synchronized (sInstanceLock) {
-            if (sInstance == null) {
-                sInstance = new DeepShortcutManager(context.getApplicationContext());
-            }
-            return sInstance;
+        if (sInstance == null) {
+            sInstance = new DeepShortcutManager(context.getApplicationContext());
         }
+        return sInstance;
     }
 
     private final LauncherApps mLauncherApps;
-    private boolean mWasLastCallSuccess;
 
     private DeepShortcutManager(Context context) {
         mLauncherApps = (LauncherApps) context.getSystemService(Context.LAUNCHER_APPS_SERVICE);
     }
 
-    public boolean wasLastCallSuccess() {
-        return mWasLastCallSuccess;
-    }
-
     /**
      * Queries for the shortcuts with the package name and provided ids.
      *
      * This method is intended to get the full details for shortcuts when they are added or updated,
      * because we only get "key" fields in onShortcutsChanged().
      */
-    public List<ShortcutInfo> queryForFullDetails(String packageName,
+    public QueryResult queryForFullDetails(String packageName,
             List<String> shortcutIds, UserHandle user) {
         return query(FLAG_GET_ALL, packageName, null, shortcutIds, user);
     }
@@ -80,9 +72,9 @@
      * Gets all the manifest and dynamic shortcuts associated with the given package and user,
      * to be displayed in the shortcuts container on long press.
      */
-    public List<ShortcutInfo> queryForShortcutsContainer(@Nullable ComponentName activity,
+    public QueryResult queryForShortcutsContainer(@Nullable ComponentName activity,
             UserHandle user) {
-        if (activity == null) return Collections.EMPTY_LIST;
+        if (activity == null) return QueryResult.FAILURE;
         return query(ShortcutQuery.FLAG_MATCH_MANIFEST | ShortcutQuery.FLAG_MATCH_DYNAMIC,
                 activity.getPackageName(), activity, null, user);
     }
@@ -99,10 +91,8 @@
         pinnedIds.remove(id);
         try {
             mLauncherApps.pinShortcuts(packageName, pinnedIds, user);
-            mWasLastCallSuccess = true;
         } catch (SecurityException|IllegalStateException e) {
             Log.w(TAG, "Failed to unpin shortcut", e);
-            mWasLastCallSuccess = false;
         }
     }
 
@@ -118,10 +108,8 @@
         pinnedIds.add(id);
         try {
             mLauncherApps.pinShortcuts(packageName, pinnedIds, user);
-            mWasLastCallSuccess = true;
         } catch (SecurityException|IllegalStateException e) {
             Log.w(TAG, "Failed to pin shortcut", e);
-            mWasLastCallSuccess = false;
         }
     }
 
@@ -130,23 +118,18 @@
         try {
             mLauncherApps.startShortcut(packageName, id, sourceBounds,
                     startActivityOptions, user);
-            mWasLastCallSuccess = true;
         } catch (SecurityException|IllegalStateException e) {
             Log.e(TAG, "Failed to start shortcut", e);
-            mWasLastCallSuccess = false;
         }
     }
 
     public Drawable getShortcutIconDrawable(ShortcutInfo shortcutInfo, int density) {
         try {
-            Drawable icon = mLauncherApps.getShortcutIconDrawable(shortcutInfo, density);
-            mWasLastCallSuccess = true;
-            return icon;
+            return mLauncherApps.getShortcutIconDrawable(shortcutInfo, density);
         } catch (SecurityException|IllegalStateException e) {
             Log.e(TAG, "Failed to get shortcut icon", e);
-            mWasLastCallSuccess = false;
+            return null;
         }
-        return null;
     }
 
     /**
@@ -154,20 +137,20 @@
      *
      * If packageName is null, returns all pinned shortcuts regardless of package.
      */
-    public List<ShortcutInfo> queryForPinnedShortcuts(String packageName, UserHandle user) {
+    public QueryResult queryForPinnedShortcuts(String packageName, UserHandle user) {
         return queryForPinnedShortcuts(packageName, null, user);
     }
 
-    public List<ShortcutInfo> queryForPinnedShortcuts(String packageName,
-            List<String> shortcutIds, UserHandle user) {
+    public QueryResult queryForPinnedShortcuts(String packageName, List<String> shortcutIds,
+            UserHandle user) {
         return query(ShortcutQuery.FLAG_MATCH_PINNED, packageName, null, shortcutIds, user);
     }
 
-    public List<ShortcutInfo> queryForAllShortcuts(UserHandle user) {
+    public QueryResult queryForAllShortcuts(UserHandle user) {
         return query(FLAG_GET_ALL, null, null, null, user);
     }
 
-    private List<String> extractIds(List<ShortcutInfo> shortcuts) {
+    private static List<String> extractIds(List<ShortcutInfo> shortcuts) {
         List<String> shortcutIds = new ArrayList<>(shortcuts.size());
         for (ShortcutInfo shortcut : shortcuts) {
             shortcutIds.add(shortcut.getId());
@@ -181,8 +164,8 @@
      *
      * TODO: Use the cache to optimize this so we don't make an RPC every time.
      */
-    private List<ShortcutInfo> query(int flags, String packageName,
-            ComponentName activity, List<String> shortcutIds, UserHandle user) {
+    private QueryResult query(int flags, String packageName, ComponentName activity,
+            List<String> shortcutIds, UserHandle user) {
         ShortcutQuery q = new ShortcutQuery();
         q.setQueryFlags(flags);
         if (packageName != null) {
@@ -190,18 +173,12 @@
             q.setActivity(activity);
             q.setShortcutIds(shortcutIds);
         }
-        List<ShortcutInfo> shortcutInfos = null;
         try {
-            shortcutInfos = mLauncherApps.getShortcuts(q, user);
-            mWasLastCallSuccess = true;
+            return new QueryResult(mLauncherApps.getShortcuts(q, user));
         } catch (SecurityException|IllegalStateException e) {
             Log.e(TAG, "Failed to query for shortcuts", e);
-            mWasLastCallSuccess = false;
+            return QueryResult.FAILURE;
         }
-        if (shortcutInfos == null) {
-            return Collections.EMPTY_LIST;
-        }
-        return shortcutInfos;
     }
 
     public boolean hasHostPermission() {
@@ -212,4 +189,25 @@
         }
         return false;
     }
+
+    public static class QueryResult extends ArrayList<ShortcutInfo> {
+
+        static QueryResult FAILURE = new QueryResult();
+
+        private final boolean mWasSuccess;
+
+        QueryResult(List<ShortcutInfo> result) {
+            super(result == null ? Collections.emptyList() : result);
+            mWasSuccess = true;
+        }
+
+        QueryResult() {
+            mWasSuccess = false;
+        }
+
+
+        public boolean wasSuccess() {
+            return mWasSuccess;
+        }
+    }
 }
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/AllAppsSwipeController.java b/src_ui_overrides/com/android/launcher3/uioverrides/AllAppsSwipeController.java
index bd6ea50..23f21a1 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/AllAppsSwipeController.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/AllAppsSwipeController.java
@@ -10,7 +10,7 @@
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.LauncherStateManager.AnimationComponents;
 import com.android.launcher3.touch.AbstractStateChangeTouchController;
-import com.android.launcher3.touch.SwipeDetector;
+import com.android.launcher3.touch.SingleAxisSwipeDetector;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 
 /**
@@ -21,7 +21,7 @@
     private MotionEvent mTouchDownEvent;
 
     public AllAppsSwipeController(Launcher l) {
-        super(l, SwipeDetector.VERTICAL);
+        super(l, SingleAxisSwipeDetector.VERTICAL);
     }
 
     @Override
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/UiFactory.java b/src_ui_overrides/com/android/launcher3/uioverrides/UiFactory.java
index 467ae02..f2b5ed2 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/UiFactory.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/UiFactory.java
@@ -101,4 +101,6 @@
     public static Person[] getPersons(ShortcutInfo si) {
         return Utilities.EMPTY_PERSON_ARRAY;
     }
+
+    public static void closeSystemWindows() {}
 }
diff --git a/tests/Android.mk b/tests/Android.mk
index 0c41241..02ead4e 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -27,7 +27,7 @@
 
 ifneq (,$(wildcard frameworks/base))
 else
-    LOCAL_STATIC_JAVA_LIBRARIES += libSharedSystemUI
+    LOCAL_STATIC_JAVA_LIBRARIES += SystemUISharedLib
 
     LOCAL_SRC_FILES := $(call all-java-files-under, tapl) \
         ../src/com/android/launcher3/ResourceUtils.java \
diff --git a/tests/AndroidManifest-common.xml b/tests/AndroidManifest-common.xml
index c6f55a7..ffa90b9 100644
--- a/tests/AndroidManifest-common.xml
+++ b/tests/AndroidManifest-common.xml
@@ -62,6 +62,12 @@
                 <action android:name="android.appwidget.action.APPWIDGET_CONFIGURE"/>
             </intent-filter>
         </activity>
+        <activity android:name="com.android.launcher3.testcomponent.CustomShortcutConfigActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.CREATE_SHORTCUT" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity>
         <activity
             android:name="com.android.launcher3.testcomponent.RequestPinItemActivity"
             android:icon="@drawable/test_drawable_pin_item"
diff --git a/tests/src/com/android/launcher3/model/LoaderCursorTest.java b/tests/src/com/android/launcher3/model/LoaderCursorTest.java
index 7d60ad6..64df8e0 100644
--- a/tests/src/com/android/launcher3/model/LoaderCursorTest.java
+++ b/tests/src/com/android/launcher3/model/LoaderCursorTest.java
@@ -15,9 +15,9 @@
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.LauncherAppState;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.icons.BitmapInfo;
+import com.android.launcher3.util.PackageManagerHelper;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -115,7 +115,7 @@
         WorkspaceItemInfo info = mLoaderCursor.getAppShortcutInfo(
                 new Intent().setComponent(cn), false /* allowMissingTarget */, true);
         assertNotNull(info);
-        assertTrue(Utilities.isLauncherAppTarget(info.intent));
+        assertTrue(PackageManagerHelper.isLauncherAppTarget(info.intent));
     }
 
     @Test
@@ -127,7 +127,7 @@
         WorkspaceItemInfo info = mLoaderCursor.getAppShortcutInfo(
                 new Intent().setComponent(cn), true  /* allowMissingTarget */, true);
         assertNotNull(info);
-        assertTrue(Utilities.isLauncherAppTarget(info.intent));
+        assertTrue(PackageManagerHelper.isLauncherAppTarget(info.intent));
     }
 
     @Test
diff --git a/tests/src/com/android/launcher3/testcomponent/CustomShortcutConfigActivity.java b/tests/src/com/android/launcher3/testcomponent/CustomShortcutConfigActivity.java
new file mode 100644
index 0000000..b673faa
--- /dev/null
+++ b/tests/src/com/android/launcher3/testcomponent/CustomShortcutConfigActivity.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3.testcomponent;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ShortcutInfo;
+import android.content.pm.ShortcutManager;
+import android.graphics.drawable.Icon;
+import android.os.Bundle;
+
+import com.android.launcher3.R;
+
+import java.util.UUID;
+
+/**
+ * A custom shortcut is a 1x1 widget that launches a specific intent when user tap on it.
+ * Custom shortcuts are replaced by deep shortcuts after api 25.
+ */
+public class CustomShortcutConfigActivity extends BaseTestingActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        Intent launchIntent = new Intent(this, BaseTestingActivity.class)
+                .setAction("com.android.launcher3.intent.action.test_shortcut");
+        Intent shortcutIntent = createShortcutResultIntent(
+                this, UUID.randomUUID().toString(), "Shortcut",
+                R.drawable.ic_widget, launchIntent);
+        setResult(RESULT_OK, shortcutIntent);
+        finish();
+    }
+
+    private static Intent createShortcutResultIntent(
+            Context context, String uniqueId, String name, int iconId, Intent launchIntent) {
+        ShortcutInfo shortcutInfo =
+                createShortcutInfo(context, uniqueId, name, iconId, launchIntent);
+        ShortcutManager sm = context.getSystemService(ShortcutManager.class);
+        return sm.createShortcutResultIntent(shortcutInfo);
+    }
+
+    private static ShortcutInfo createShortcutInfo(
+            Context context, String uniqueId, String name, int iconId, Intent launchIntent) {
+        return new ShortcutInfo.Builder(context, uniqueId)
+                .setShortLabel(name)
+                .setLongLabel(name)
+                .setIcon(Icon.createWithResource(context, iconId))
+                .setIntent(launchIntent)
+                .build();
+    }
+}
diff --git a/tests/src/com/android/launcher3/touch/SwipeDetectorTest.java b/tests/src/com/android/launcher3/touch/SingleAxisSwipeDetectorTest.java
similarity index 72%
rename from tests/src/com/android/launcher3/touch/SwipeDetectorTest.java
rename to tests/src/com/android/launcher3/touch/SingleAxisSwipeDetectorTest.java
index e042357..5174e4d 100644
--- a/tests/src/com/android/launcher3/touch/SwipeDetectorTest.java
+++ b/tests/src/com/android/launcher3/touch/SingleAxisSwipeDetectorTest.java
@@ -15,6 +15,12 @@
  */
 package com.android.launcher3.touch;
 
+import static com.android.launcher3.touch.SingleAxisSwipeDetector.DIRECTION_BOTH;
+import static com.android.launcher3.touch.SingleAxisSwipeDetector.DIRECTION_NEGATIVE;
+import static com.android.launcher3.touch.SingleAxisSwipeDetector.DIRECTION_POSITIVE;
+import static com.android.launcher3.touch.SingleAxisSwipeDetector.HORIZONTAL;
+import static com.android.launcher3.touch.SingleAxisSwipeDetector.VERTICAL;
+
 import static org.mockito.Matchers.anyBoolean;
 import static org.mockito.Matchers.anyFloat;
 import static org.mockito.Matchers.anyObject;
@@ -25,6 +31,10 @@
 import android.util.Log;
 import android.view.ViewConfiguration;
 
+import androidx.test.InstrumentationRegistry;
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
+
 import com.android.launcher3.testcomponent.TouchEventGenerator;
 
 import org.junit.Before;
@@ -33,25 +43,21 @@
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
-import androidx.test.InstrumentationRegistry;
-import androidx.test.filters.SmallTest;
-import androidx.test.runner.AndroidJUnit4;
-
 @SmallTest
 @RunWith(AndroidJUnit4.class)
-public class SwipeDetectorTest {
+public class SingleAxisSwipeDetectorTest {
 
-    private static final String TAG = SwipeDetectorTest.class.getSimpleName();
+    private static final String TAG = SingleAxisSwipeDetectorTest.class.getSimpleName();
     public static void L(String s, Object... parts) {
         Log.d(TAG, (parts.length == 0) ? s : String.format(s, parts));
     }
 
     private TouchEventGenerator mGenerator;
-    private SwipeDetector mDetector;
+    private SingleAxisSwipeDetector mDetector;
     private int mTouchSlop;
 
     @Mock
-    private SwipeDetector.Listener mMockListener;
+    private SingleAxisSwipeDetector.Listener mMockListener;
 
     @Mock
     private ViewConfiguration mMockConfig;
@@ -65,8 +71,8 @@
         doReturn(orgConfig.getScaledMaximumFlingVelocity()).when(mMockConfig)
                 .getScaledMaximumFlingVelocity();
 
-        mDetector = new SwipeDetector(mMockConfig, mMockListener, SwipeDetector.VERTICAL, false);
-        mDetector.setDetectableScrollConditions(SwipeDetector.DIRECTION_BOTH, false);
+        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, VERTICAL, false);
+        mDetector.setDetectableScrollConditions(DIRECTION_BOTH, false);
         mTouchSlop = orgConfig.getScaledTouchSlop();
         doReturn(mTouchSlop).when(mMockConfig).getScaledTouchSlop();
 
@@ -75,8 +81,8 @@
 
     @Test
     public void testDragStart_verticalPositive() {
-        mDetector = new SwipeDetector(mMockConfig, mMockListener, SwipeDetector.VERTICAL, false);
-        mDetector.setDetectableScrollConditions(SwipeDetector.DIRECTION_POSITIVE, false);
+        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, VERTICAL, false);
+        mDetector.setDetectableScrollConditions(DIRECTION_POSITIVE, false);
         mGenerator.put(0, 100, 100);
         mGenerator.move(0, 100, 100 - mTouchSlop);
         // TODO: actually calculate the following parameters and do exact value checks.
@@ -85,8 +91,8 @@
 
     @Test
     public void testDragStart_verticalNegative() {
-        mDetector = new SwipeDetector(mMockConfig, mMockListener, SwipeDetector.VERTICAL, false);
-        mDetector.setDetectableScrollConditions(SwipeDetector.DIRECTION_NEGATIVE, false);
+        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, VERTICAL, false);
+        mDetector.setDetectableScrollConditions(DIRECTION_NEGATIVE, false);
         mGenerator.put(0, 100, 100);
         mGenerator.move(0, 100, 100 + mTouchSlop);
         // TODO: actually calculate the following parameters and do exact value checks.
@@ -103,8 +109,8 @@
 
     @Test
     public void testDragStart_horizontalPositive() {
-        mDetector = new SwipeDetector(mMockConfig, mMockListener, SwipeDetector.HORIZONTAL, false);
-        mDetector.setDetectableScrollConditions(SwipeDetector.DIRECTION_POSITIVE, false);
+        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, HORIZONTAL, false);
+        mDetector.setDetectableScrollConditions(DIRECTION_POSITIVE, false);
 
         mGenerator.put(0, 100, 100);
         mGenerator.move(0, 100 + mTouchSlop, 100);
@@ -114,8 +120,8 @@
 
     @Test
     public void testDragStart_horizontalNegative() {
-        mDetector = new SwipeDetector(mMockConfig, mMockListener, SwipeDetector.HORIZONTAL, false);
-        mDetector.setDetectableScrollConditions(SwipeDetector.DIRECTION_NEGATIVE, false);
+        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, HORIZONTAL, false);
+        mDetector.setDetectableScrollConditions(DIRECTION_NEGATIVE, false);
 
         mGenerator.put(0, 100, 100);
         mGenerator.move(0, 100 - mTouchSlop, 100);
@@ -125,8 +131,8 @@
 
     @Test
     public void testDragStart_horizontalRtlPositive() {
-        mDetector = new SwipeDetector(mMockConfig, mMockListener, SwipeDetector.HORIZONTAL, true);
-        mDetector.setDetectableScrollConditions(SwipeDetector.DIRECTION_POSITIVE, false);
+        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, HORIZONTAL, true);
+        mDetector.setDetectableScrollConditions(DIRECTION_POSITIVE, false);
 
         mGenerator.put(0, 100, 100);
         mGenerator.move(0, 100 - mTouchSlop, 100);
@@ -136,8 +142,8 @@
 
     @Test
     public void testDragStart_horizontalRtlNegative() {
-        mDetector = new SwipeDetector(mMockConfig, mMockListener, SwipeDetector.HORIZONTAL, true);
-        mDetector.setDetectableScrollConditions(SwipeDetector.DIRECTION_NEGATIVE, false);
+        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, HORIZONTAL, true);
+        mDetector.setDetectableScrollConditions(DIRECTION_NEGATIVE, false);
 
         mGenerator.put(0, 100, 100);
         mGenerator.move(0, 100 + mTouchSlop, 100);
@@ -160,6 +166,6 @@
         mGenerator.move(0, 100, 100 + mTouchSlop * 2);
         mGenerator.lift(0);
         // TODO: actually calculate the following parameters and do exact value checks.
-        verify(mMockListener).onDragEnd(anyFloat(), anyBoolean());
+        verify(mMockListener).onDragEnd(anyFloat());
     }
 }
diff --git a/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java b/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
index 843fd33..9a894b1 100644
--- a/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
+++ b/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
@@ -15,15 +15,16 @@
  */
 package com.android.launcher3.ui;
 
-import static androidx.test.InstrumentationRegistry.getInstrumentation;
-
 import static com.android.launcher3.tapl.LauncherInstrumentation.ContainerType;
 import static com.android.launcher3.ui.TaplTestsLauncher3.getAppPackageName;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 
 import static org.junit.Assert.assertTrue;
 
 import static java.lang.System.exit;
 
+import static androidx.test.InstrumentationRegistry.getInstrumentation;
+
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
@@ -47,7 +48,6 @@
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.LauncherStateManager;
-import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.model.AppLaunchTracker;
@@ -55,6 +55,7 @@
 import com.android.launcher3.tapl.TestHelpers;
 import com.android.launcher3.testcomponent.TestCommandReceiver;
 import com.android.launcher3.testing.TestProtocol;
+import com.android.launcher3.util.LooperExecutor;
 import com.android.launcher3.util.PackageManagerHelper;
 import com.android.launcher3.util.Wait;
 import com.android.launcher3.util.rule.FailureWatcher;
@@ -90,7 +91,7 @@
     public static final long DEFAULT_UI_TIMEOUT = 60000; // b/136278866
     private static final String TAG = "AbstractLauncherUiTest";
 
-    protected MainThreadExecutor mMainThreadExecutor = new MainThreadExecutor();
+    protected LooperExecutor mMainThreadExecutor = MAIN_EXECUTOR;
     protected final UiDevice mDevice = UiDevice.getInstance(getInstrumentation());
     protected final LauncherInstrumentation mLauncher = new LauncherInstrumentation();
     protected Context mTargetContext;
@@ -347,7 +348,8 @@
         startIntent(
                 getInstrumentation().getContext().getPackageManager().getLaunchIntentForPackage(
                         packageName),
-                By.pkg(packageName).depth(0));
+                By.pkg(packageName).depth(0),
+                true /* newTask */);
     }
 
     protected void startTestActivity(int activityNumber) {
@@ -356,12 +358,17 @@
                 getLaunchIntentForPackage(packageName);
         intent.setComponent(new ComponentName(packageName,
                 "com.android.launcher3.tests.Activity" + activityNumber));
-        startIntent(intent, By.pkg(packageName).text("TestActivity" + activityNumber));
+        startIntent(intent, By.pkg(packageName).text("TestActivity" + activityNumber),
+                false /* newTask */);
     }
 
-    private void startIntent(Intent intent, BySelector selector) {
+    private void startIntent(Intent intent, BySelector selector, boolean newTask) {
         intent.addCategory(Intent.CATEGORY_LAUNCHER);
-        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
+        if (newTask) {
+            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
+        } else {
+            intent.addFlags(Intent.FLAG_ACTIVITY_MULTIPLE_TASK | Intent.FLAG_ACTIVITY_NEW_DOCUMENT);
+        }
         getInstrumentation().getTargetContext().startActivity(intent);
         assertTrue("App didn't start: " + selector,
                 mDevice.wait(Until.hasObject(selector), DEFAULT_UI_TIMEOUT));
diff --git a/tests/src/com/android/launcher3/ui/widget/AddWidgetTest.java b/tests/src/com/android/launcher3/ui/widget/AddWidgetTest.java
index b8ca5de..f9d1d93 100644
--- a/tests/src/com/android/launcher3/ui/widget/AddWidgetTest.java
+++ b/tests/src/com/android/launcher3/ui/widget/AddWidgetTest.java
@@ -69,4 +69,22 @@
         assertNotNull("Widget not found on the workspace", widget);
         widget.launch(getAppPackageName());
     }
+
+    /**
+     * Test dragging a custom shortcut to the workspace and launch it.
+     *
+     * A custom shortcut is a 1x1 widget that launches a specific intent when user tap on it.
+     * Custom shortcuts are replaced by deep shortcuts after api 25.
+     */
+    @Test
+    @PortraitLandscape
+    public void testDragCustomShortcut() throws Throwable {
+        clearHomescreen();
+        mDevice.pressHome();
+        mLauncher.getWorkspace().openAllWidgets()
+                .getWidget("com.android.launcher3.testcomponent.CustomShortcutConfigActivity")
+                .dragToWorkspace();
+        mLauncher.getWorkspace().getWorkspaceAppIcon("Shortcut")
+                .launch(getAppPackageName());
+    }
 }
diff --git a/tests/src/com/android/launcher3/util/Condition.java b/tests/src/com/android/launcher3/util/Condition.java
index b564a1a..d85dd3a 100644
--- a/tests/src/com/android/launcher3/util/Condition.java
+++ b/tests/src/com/android/launcher3/util/Condition.java
@@ -1,8 +1,8 @@
 package com.android.launcher3.util;
 
-import androidx.test.uiautomator.UiObject2;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 
-import com.android.launcher3.MainThreadExecutor;
+import androidx.test.uiautomator.UiObject2;
 
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
@@ -16,7 +16,7 @@
      * Converts the condition to be run on UI thread.
      */
     static Condition runOnUiThread(final Condition condition) {
-        final MainThreadExecutor executor = new MainThreadExecutor();
+        final LooperExecutor executor = MAIN_EXECUTOR;
         return () -> {
             final AtomicBoolean value = new AtomicBoolean(false);
             final Throwable[] exceptions = new Throwable[1];
diff --git a/tests/src/com/android/launcher3/util/RaceConditionReproducer.java b/tests/src/com/android/launcher3/util/RaceConditionReproducer.java
index 0235f95..8f89173 100644
--- a/tests/src/com/android/launcher3/util/RaceConditionReproducer.java
+++ b/tests/src/com/android/launcher3/util/RaceConditionReproducer.java
@@ -16,6 +16,7 @@
 
 package com.android.launcher3.util;
 
+import static com.android.launcher3.util.Executors.createAndStartNewLooper;
 import static com.android.launcher3.util.RaceConditionTracker.ENTER_POSTFIX;
 import static com.android.launcher3.util.RaceConditionTracker.EXIT_POSTFIX;
 
@@ -23,7 +24,6 @@
 import static org.junit.Assert.fail;
 
 import android.os.Handler;
-import android.os.HandlerThread;
 import android.util.Log;
 
 import java.util.ArrayList;
@@ -72,9 +72,7 @@
     private static final Handler POSTPONED_EVENT_RESUME_HANDLER = createEventResumeHandler();
 
     private static Handler createEventResumeHandler() {
-        final HandlerThread thread = new HandlerThread("RaceConditionEventResumer");
-        thread.start();
-        return new Handler(thread.getLooper());
+        return new Handler(createAndStartNewLooper("RaceConditionEventResumer"));
     }
 
     /**
diff --git a/tests/tapl/com/android/launcher3/tapl/AllApps.java b/tests/tapl/com/android/launcher3/tapl/AllApps.java
index 6dced8c..96e4b8c 100644
--- a/tests/tapl/com/android/launcher3/tapl/AllApps.java
+++ b/tests/tapl/com/android/launcher3/tapl/AllApps.java
@@ -36,6 +36,7 @@
     private static final int MAX_SCROLL_ATTEMPTS = 40;
 
     private final int mHeight;
+    private final int mIconHeight;
 
     AllApps(LauncherInstrumentation launcher) {
         super(launcher);
@@ -46,6 +47,10 @@
         // Wait for the recycler to populate.
         mLauncher.waitForObjectInContainer(appListRecycler, By.clazz(TextView.class));
         verifyNotFrozen("All apps freeze flags upon opening all apps");
+        mIconHeight = mLauncher.getTestInfo(
+                TestProtocol.REQUEST_ICON_HEIGHT)
+                .getInt(TestProtocol.TEST_INFO_RESPONSE_FIELD);
+
     }
 
     @Override
@@ -62,6 +67,10 @@
         }
         final Rect iconBounds = icon.getVisibleBounds();
         LauncherInstrumentation.log("hasClickableIcon: icon bounds: " + iconBounds);
+        if (iconBounds.height() < mIconHeight / 2) {
+            LauncherInstrumentation.log("hasClickableIcon: icon has insufficient height");
+            return false;
+        }
         if (iconCenterInSearchBox(allAppsContainer, icon)) {
             LauncherInstrumentation.log("hasClickableIcon: icon center is under search box");
             return false;
diff --git a/tests/tapl/com/android/launcher3/tapl/Background.java b/tests/tapl/com/android/launcher3/tapl/Background.java
index bcce8ef..db3d846 100644
--- a/tests/tapl/com/android/launcher3/tapl/Background.java
+++ b/tests/tapl/com/android/launcher3/tapl/Background.java
@@ -23,6 +23,7 @@
 import android.view.MotionEvent;
 
 import androidx.annotation.NonNull;
+import androidx.test.uiautomator.UiObject2;
 
 import com.android.launcher3.testing.TestProtocol;
 
@@ -114,6 +115,60 @@
         }
     }
 
+    /**
+     * Swipes right or double presses the square button to switch to the previous app.
+     */
+    public Background quickSwitchToPreviousApp() {
+        try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(
+                "want to quick switch to the previous app")) {
+            verifyActiveContainer();
+            quickSwitchToPreviousApp(getExpectedStateForQuickSwitch());
+            return new Background(mLauncher);
+        }
+    }
+
+    protected int getExpectedStateForQuickSwitch() {
+        return BACKGROUND_APP_STATE_ORDINAL;
+    }
+
+    protected void quickSwitchToPreviousApp(int expectedState) {
+        boolean transposeInLandscape = false;
+        switch (mLauncher.getNavigationModel()) {
+            case TWO_BUTTON:
+                transposeInLandscape = true;
+                // Fall through, zero button and two button modes behave the same.
+            case ZERO_BUTTON: {
+                final int startX;
+                final int startY;
+                final int endX;
+                final int endY;
+                if (mLauncher.getDevice().isNaturalOrientation() || !transposeInLandscape) {
+                    // Swipe from the bottom left to the bottom right of the screen.
+                    startX = 0;
+                    startY = getSwipeStartY();
+                    endX = mLauncher.getDevice().getDisplayWidth();
+                    endY = startY;
+                } else {
+                    // Swipe from the bottom right to the top right of the screen.
+                    startX = getSwipeStartX();
+                    startY = mLauncher.getRealDisplaySize().y - 1;
+                    endX = startX;
+                    endY = 0;
+                }
+                mLauncher.swipeToState(startX, startY, endX, endY, 20, expectedState);
+                break;
+            }
+
+            case THREE_BUTTON:
+                // Double press the recents button.
+                UiObject2 recentsButton = mLauncher.waitForSystemUiObject("recent_apps");
+                recentsButton.click();
+                mLauncher.getOverview();
+                recentsButton.click();
+                break;
+        }
+    }
+
     protected String getSwipeHeightRequestName() {
         return TestProtocol.REQUEST_BACKGROUND_TO_OVERVIEW_SWIPE_HEIGHT;
     }
diff --git a/tests/tapl/com/android/launcher3/tapl/Home.java b/tests/tapl/com/android/launcher3/tapl/Home.java
index cfc4374..e0fe933 100644
--- a/tests/tapl/com/android/launcher3/tapl/Home.java
+++ b/tests/tapl/com/android/launcher3/tapl/Home.java
@@ -17,6 +17,7 @@
 package com.android.launcher3.tapl;
 
 import static com.android.launcher3.testing.TestProtocol.OVERVIEW_STATE_ORDINAL;
+import static com.android.launcher3.testing.TestProtocol.QUICK_SWITCH_STATE_ORDINAL;
 
 import androidx.annotation.NonNull;
 
@@ -58,4 +59,9 @@
             }
         }
     }
+
+    @Override
+    protected int getExpectedStateForQuickSwitch() {
+        return QUICK_SWITCH_STATE_ORDINAL;
+    }
 }
\ No newline at end of file
diff --git a/tests/tapl/com/android/launcher3/tapl/Workspace.java b/tests/tapl/com/android/launcher3/tapl/Workspace.java
index 01edcc2..0aa36dd 100644
--- a/tests/tapl/com/android/launcher3/tapl/Workspace.java
+++ b/tests/tapl/com/android/launcher3/tapl/Workspace.java
@@ -140,7 +140,7 @@
     }
 
     private boolean isWorkspaceScrollable(UiObject2 workspace) {
-        return workspace.isScrollable();
+        return workspace.getChildCount() > 1;
     }
 
     @NonNull