diff --git a/quickstep/res/values/strings.xml b/quickstep/res/values/strings.xml
index f80deeb..81b0dd2 100644
--- a/quickstep/res/values/strings.xml
+++ b/quickstep/res/values/strings.xml
@@ -109,6 +109,8 @@
     <string name="back_gesture_intro_title">Swipe to go back</string>
     <!-- Introduction subtitle for the Back gesture tutorial. [CHAR LIMIT=200] -->
     <string name="back_gesture_intro_subtitle">To go back to the last screen, swipe from the left or right edge to the middle of the screen.</string>
+    <!-- Introduction subtitle for the Back gesture tutorial that will be spoken by screen readers. [CHAR LIMIT=200] -->
+    <string name="back_gesture_spoken_intro_subtitle">To go back to the last screen, swipe with 2 fingers from the left or right edge to the middle of the screen.</string>
 
     <string name="home_gesture_feedback_swipe_too_far_from_edge">Make sure you swipe up from the bottom edge of the screen.</string>
     <!-- Feedback shown during interactive parts of Home gesture tutorial when the Overview gesture is detected. [CHAR LIMIT=100] -->
@@ -123,6 +125,8 @@
     <string name="home_gesture_intro_title">Swipe to go home</string>
     <!-- Introduction subtitle for the Home gesture tutorial. [CHAR LIMIT=100] -->
     <string name="home_gesture_intro_subtitle">Swipe up from the bottom of your screen. This gesture always takes you to the Home screen.</string>
+    <!-- Introduction subtitle for the Home gesture tutorial that will be spoken by screen readers. [CHAR LIMIT=100] -->
+    <string name="home_gesture_spoken_intro_subtitle">Swipe up with 2 fingers from the bottom of the screen. This gesture always takes you to the Home screen.</string>
 
     <!-- Feedback shown during interactive parts of Overview gesture tutorial when the gesture is started too far from the edge. [CHAR LIMIT=100] -->
     <string name="overview_gesture_feedback_swipe_too_far_from_edge">Make sure you swipe up from the bottom edge of the screen.</string>
@@ -138,6 +142,8 @@
     <string name="overview_gesture_intro_title">Swipe to switch apps</string>
     <!-- Introduction subtitle for the Overview gesture tutorial. [CHAR LIMIT=100] -->
     <string name="overview_gesture_intro_subtitle">To switch between apps, swipe up from the bottom of your screen, hold, then release.</string>
+    <!-- Introduction subtitle for the Overview gesture tutorial that will be spoken by screen readers. [CHAR LIMIT=100] -->
+    <string name="overview_gesture_spoken_intro_subtitle">To switch between apps, swipe up with 2 fingers from the bottom of your screen, hold, then release.</string>
 
     <!-- Title shown during interactive part of Assistant gesture tutorial. [CHAR LIMIT=30] -->
     <string name="assistant_gesture_tutorial_playground_title" translatable="false">Tutorial: Assistant</string>
diff --git a/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java b/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
index 6abcbd5..2239102 100644
--- a/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
@@ -24,6 +24,9 @@
 import static com.android.launcher3.config.FeatureFlags.ENABLE_SPLIT_FROM_WORKSPACE;
 import static com.android.launcher3.model.data.ItemInfo.NO_MATCHING_ID;
 import static com.android.launcher3.popup.QuickstepSystemShortcut.getSplitSelectShortcutByPosition;
+import static com.android.launcher3.taskbar.LauncherTaskbarUIController.ALL_APPS_PAGE_PROGRESS_INDEX;
+import static com.android.launcher3.taskbar.LauncherTaskbarUIController.MINUS_ONE_PAGE_PROGRESS_INDEX;
+import static com.android.launcher3.taskbar.LauncherTaskbarUIController.WIDGETS_PAGE_PROGRESS_INDEX;
 import static com.android.launcher3.util.DisplayController.CHANGE_ACTIVE_SCREEN;
 import static com.android.launcher3.util.DisplayController.CHANGE_NAVIGATION_MODE;
 import static com.android.launcher3.util.DisplayController.NavigationMode.TWO_BUTTONS;
@@ -229,6 +232,28 @@
     public void onScrollChanged(float progress) {
         super.onScrollChanged(progress);
         mDepthController.onOverlayScrollChanged(progress);
+        onTaskbarInAppDisplayProgressUpdate(progress, MINUS_ONE_PAGE_PROGRESS_INDEX);
+    }
+
+    @Override
+    public void onAllAppsTransition(float progress) {
+        super.onAllAppsTransition(progress);
+        onTaskbarInAppDisplayProgressUpdate(progress, ALL_APPS_PAGE_PROGRESS_INDEX);
+    }
+
+    @Override
+    public void onWidgetsTransition(float progress) {
+        super.onWidgetsTransition(progress);
+        onTaskbarInAppDisplayProgressUpdate(progress, WIDGETS_PAGE_PROGRESS_INDEX);
+    }
+
+    private void onTaskbarInAppDisplayProgressUpdate(float progress, int flag) {
+        if (mTaskbarManager == null
+                || mTaskbarManager.getCurrentActivityContext() == null
+                || mTaskbarUIController == null) {
+            return;
+        }
+        mTaskbarUIController.onTaskbarInAppDisplayProgressUpdate(progress, flag);
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java b/quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java
index 62a8da7..05b8167 100644
--- a/quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java
+++ b/quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java
@@ -55,13 +55,13 @@
 import com.android.launcher3.touch.ItemLongClickListener;
 import com.android.launcher3.uioverrides.PredictedAppIcon;
 import com.android.launcher3.uioverrides.QuickstepLauncher;
-import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.OnboardingPrefs;
 import com.android.launcher3.views.Snackbar;
 
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.function.Predicate;
 import java.util.stream.Collectors;
 
 /**
@@ -480,8 +480,8 @@
      *
      * @param matcher filter matching items that have been removed
      */
-    public void onModelItemsRemoved(ItemInfoMatcher matcher) {
-        if (mPredictedItems.removeIf(matcher::matchesInfo)) {
+    public void onModelItemsRemoved(Predicate<ItemInfo> matcher) {
+        if (mPredictedItems.removeIf(matcher)) {
             fillGapsWithPrediction(true);
         }
     }
diff --git a/quickstep/src/com/android/launcher3/popup/QuickstepSystemShortcut.java b/quickstep/src/com/android/launcher3/popup/QuickstepSystemShortcut.java
index 86310fa..4e59790 100644
--- a/quickstep/src/com/android/launcher3/popup/QuickstepSystemShortcut.java
+++ b/quickstep/src/com/android/launcher3/popup/QuickstepSystemShortcut.java
@@ -70,7 +70,8 @@
 
             RecentsView recentsView = mTarget.getOverviewPanel();
             recentsView.initiateSplitSelect(
-                    new SplitSelectSource(view, new BitmapDrawable(bitmap), intent, mPosition));
+                    new SplitSelectSource(mOriginalView, new BitmapDrawable(bitmap), intent,
+                            mPosition));
         }
     }
 
diff --git a/quickstep/src/com/android/launcher3/search/SearchSessionManager.java b/quickstep/src/com/android/launcher3/search/SearchSessionManager.java
deleted file mode 100644
index da85793..0000000
--- a/quickstep/src/com/android/launcher3/search/SearchSessionManager.java
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright (C) 2022 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.search;
-
-import android.app.search.SearchSession;
-import android.content.Context;
-
-import androidx.annotation.IntDef;
-import androidx.annotation.UiThread;
-
-import com.android.launcher3.R;
-import com.android.launcher3.model.data.ItemInfo;
-import com.android.launcher3.util.ResourceBasedOverride;
-
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.util.List;
-
-/** Manages an all apps search session. */
-public class SearchSessionManager implements ResourceBasedOverride {
-
-    /** Entry state for the search session (e.g. from all apps). */
-    @Retention(RetentionPolicy.SOURCE)
-    @IntDef(value = {ZERO_ALLAPPS, ZERO_QSB})
-    public @interface ZeroEntryState {}
-    public static final int ZERO_ALLAPPS = 1;
-    public static final int ZERO_QSB = 2;
-
-    /** Creates a {@link SearchSessionManager} instance. */
-    public static SearchSessionManager newInstance(Context context) {
-        return Overrides.getObject(
-                SearchSessionManager.class, context, R.string.search_session_manager_class);
-    }
-
-    /** The current {@link SearchSession}. */
-    @UiThread
-    public void setSearchSession(SearchSession session) {}
-
-    /** {@code true} if IME is shown. */
-    public void setIsImeShown(boolean value) {}
-
-    /** Returns {@code true} if IME is enabled. */
-    public boolean getIsImeEnabled() {
-        return false;
-    }
-
-    /** The current entry state for search. */
-    public @ZeroEntryState int getEntryState() {
-        return ZERO_ALLAPPS;
-    }
-
-    /**
-     * When user enters all apps surface via tap on home widget, set the state to
-     * {@code #ZERO_QSB}. When user exits, reset to {@code #ZERO_ALLAPPS}
-     */
-    public void setEntryState(@ZeroEntryState int state) {}
-
-    /** This will be called before opening all apps, to prepare zero state suggestions. */
-    public void prepareZeroState() {}
-
-    /** Apply predicted items for the search zero state. */
-    public void setZeroStatePredictedItems(List<ItemInfo> items) {}
-
-    /** Returns {@code true} if the session is valid and should be enabled. */
-    public boolean isValidSession() {
-        return false;
-    }
-
-    /** Called when the search session is destroyed. */
-    public void onDestroy() {}
-}
diff --git a/quickstep/src/com/android/launcher3/taskbar/DesktopTaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/DesktopTaskbarUIController.java
index cf56248..e2359c0 100644
--- a/quickstep/src/com/android/launcher3/taskbar/DesktopTaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/DesktopTaskbarUIController.java
@@ -39,4 +39,10 @@
     protected void onDestroy() {
         mLauncher.getHotseat().setIconsAlpha(1f);
     }
+
+    @Override
+    /** Disable taskbar stashing in desktop environment. */
+    public boolean supportsVisualStashing() {
+        return false;
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
index 793d987..a3e8b5c 100644
--- a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
@@ -22,6 +22,7 @@
 import android.annotation.ColorInt;
 import android.os.RemoteException;
 import android.util.Log;
+import android.util.SparseArray;
 import android.view.MotionEvent;
 import android.view.TaskTransitionSpec;
 import android.view.WindowManagerGlobal;
@@ -43,6 +44,7 @@
 import com.android.quickstep.AnimatedFloat;
 import com.android.quickstep.RecentsAnimationCallbacks;
 
+import java.io.PrintWriter;
 import java.util.Arrays;
 import java.util.Set;
 import java.util.stream.Stream;
@@ -54,10 +56,22 @@
 
     private static final String TAG = "TaskbarUIController";
 
+    public static final int MINUS_ONE_PAGE_PROGRESS_INDEX = 0;
+    public static final int ALL_APPS_PAGE_PROGRESS_INDEX = 1;
+    public static final int WIDGETS_PAGE_PROGRESS_INDEX = 2;
+    public static final int SYSUI_SURFACE_PROGRESS_INDEX = 3;
+
+    private final SparseArray<Float> mTaskbarInAppDisplayProgress = new SparseArray<>(4);
+
     private final BaseQuickstepLauncher mLauncher;
 
     private final DeviceProfile.OnDeviceProfileChangeListener mOnDeviceProfileChangeListener =
-            this::onStashedInAppChanged;
+            dp -> {
+                onStashedInAppChanged(dp);
+                if (mControllers != null && mControllers.taskbarViewController != null) {
+                    mControllers.taskbarViewController.onRotationChanged(dp);
+                }
+            };
 
     // Initialized in init.
     private AnimatedFloat mTaskbarOverrideBackgroundAlpha;
@@ -65,15 +79,6 @@
     private final TaskbarLauncherStateController
             mTaskbarLauncherStateController = new TaskbarLauncherStateController();
 
-    private final DeviceProfile.OnDeviceProfileChangeListener mProfileChangeListener =
-            new DeviceProfile.OnDeviceProfileChangeListener() {
-                @Override
-                public void onDeviceProfileChanged(DeviceProfile dp) {
-                    mControllers.taskbarViewController.onRotationChanged(
-                            mLauncher.getDeviceProfile());
-                }
-            };
-
     public LauncherTaskbarUIController(BaseQuickstepLauncher launcher) {
         mLauncher = launcher;
     }
@@ -93,7 +98,6 @@
 
         onStashedInAppChanged(mLauncher.getDeviceProfile());
         mLauncher.addOnDeviceProfileChangeListener(mOnDeviceProfileChangeListener);
-        mLauncher.addOnDeviceProfileChangeListener(mProfileChangeListener);
     }
 
     @Override
@@ -102,9 +106,8 @@
         onLauncherResumedOrPaused(false);
         mTaskbarLauncherStateController.onDestroy();
 
-        mLauncher.removeOnDeviceProfileChangeListener(mOnDeviceProfileChangeListener);
         mLauncher.setTaskbarUIController(null);
-        mLauncher.removeOnDeviceProfileChangeListener(mProfileChangeListener);
+        mLauncher.removeOnDeviceProfileChangeListener(mOnDeviceProfileChangeListener);
         updateTaskTransitionSpec(true);
     }
 
@@ -271,4 +274,85 @@
         // gesture ends, start drawing taskbar's background again since launcher might stop drawing.
         forceHideBackground(inProgress);
     }
+
+    /**
+     * Animates Taskbar elements during a transition to a Launcher state that should use in-app
+     * layouts.
+     *
+     * @param progress [0, 1]
+     *                 0 => use home layout
+     *                 1 => use in-app layout
+     */
+    public void onTaskbarInAppDisplayProgressUpdate(float progress, int progressIndex) {
+        if (mControllers == null) {
+            // This method can be called before init() is called.
+            return;
+        }
+        mTaskbarInAppDisplayProgress.put(progressIndex, progress);
+        if (!mControllers.taskbarStashController.isInApp()
+                && !mTaskbarLauncherStateController.isAnimatingToLauncher()) {
+            // Only animate the nav buttons while home and not animating home, otherwise let
+            // the TaskbarViewController handle it.
+            mControllers.navbarButtonsViewController
+                    .getTaskbarNavButtonTranslationYForInAppDisplay()
+                    .updateValue(mLauncher.getDeviceProfile().getTaskbarOffsetY()
+                            * getInAppDisplayProgress());
+        }
+    }
+
+    /** Returns true iff any in-app display progress > 0. */
+    public boolean shouldUseInAppLayout() {
+        return getInAppDisplayProgress() > 0;
+    }
+
+    private float getInAppDisplayProgress(int index) {
+        if (!mTaskbarInAppDisplayProgress.contains(index)) {
+            mTaskbarInAppDisplayProgress.put(index, 0f);
+        }
+        return mTaskbarInAppDisplayProgress.get(index);
+    }
+
+    private float getInAppDisplayProgress() {
+        return Stream.of(
+                getInAppDisplayProgress(MINUS_ONE_PAGE_PROGRESS_INDEX),
+                getInAppDisplayProgress(ALL_APPS_PAGE_PROGRESS_INDEX),
+                getInAppDisplayProgress(WIDGETS_PAGE_PROGRESS_INDEX),
+                getInAppDisplayProgress(SYSUI_SURFACE_PROGRESS_INDEX))
+                .max(Float::compareTo)
+                .get();
+    }
+
+    @Override
+    public void dumpLogs(String prefix, PrintWriter pw) {
+        super.dumpLogs(prefix, pw);
+
+        pw.println(String.format(
+                "%s\tmTaskbarOverrideBackgroundAlpha=%.2f",
+                prefix,
+                mTaskbarOverrideBackgroundAlpha.value));
+
+        pw.println(String.format("%s\tTaskbar in-app display progress:", prefix));
+        if (mControllers == null) {
+            pw.println(String.format("%s\t\tMissing mControllers", prefix));
+        } else {
+            pw.println(String.format(
+                    "%s\t\tprogress at MINUS_ONE_PAGE_PROGRESS_INDEX=%.2f",
+                    prefix,
+                    getInAppDisplayProgress(MINUS_ONE_PAGE_PROGRESS_INDEX)));
+            pw.println(String.format(
+                    "%s\t\tprogress at ALL_APPS_PAGE_PROGRESS_INDEX=%.2f",
+                    prefix,
+                    getInAppDisplayProgress(ALL_APPS_PAGE_PROGRESS_INDEX)));
+            pw.println(String.format(
+                    "%s\t\tprogress at WIDGETS_PAGE_PROGRESS_INDEX=%.2f",
+                    prefix,
+                    getInAppDisplayProgress(WIDGETS_PAGE_PROGRESS_INDEX)));
+            pw.println(String.format(
+                    "%s\t\tprogress at SYSUI_SURFACE_PROGRESS_INDEX=%.2f",
+                    prefix,
+                    getInAppDisplayProgress(SYSUI_SURFACE_PROGRESS_INDEX)));
+        }
+
+        mTaskbarLauncherStateController.dumpLogs(prefix + "\t", pw);
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
index f65b907..349dd0a 100644
--- a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
@@ -16,6 +16,7 @@
 package com.android.launcher3.taskbar;
 
 import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_X;
+import static com.android.launcher3.taskbar.LauncherTaskbarUIController.SYSUI_SURFACE_PROGRESS_INDEX;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_A11Y;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_BACK;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_HOME;
@@ -126,11 +127,13 @@
 
     private final AnimatedFloat mTaskbarNavButtonTranslationY = new AnimatedFloat(
             this::updateNavButtonTranslationY);
+    private final AnimatedFloat mTaskbarNavButtonTranslationYForInAppDisplay = new AnimatedFloat(
+            this::updateNavButtonTranslationY);
     private final AnimatedFloat mTaskbarNavButtonTranslationYForIme = new AnimatedFloat(
             this::updateNavButtonTranslationY);
-    // Only applies to mTaskbarNavButtonTranslationY
-    private final AnimatedFloat mNavButtonTranslationYMultiplier = new AnimatedFloat(
-            this::updateNavButtonTranslationY);
+    // Used for System UI state updates that should translate the nav button for in-app display.
+    private final AnimatedFloat mNavButtonInAppDisplayProgressForSysui = new AnimatedFloat(
+            this::updateNavButtonInAppDisplayProgressForSysui);
     private final AnimatedFloat mTaskbarNavButtonDarkIntensity = new AnimatedFloat(
             this::updateNavButtonDarkIntensity);
     private final AnimatedFloat mNavButtonDarkIntensityMultiplier = new AnimatedFloat(
@@ -173,7 +176,6 @@
     public void init(TaskbarControllers controllers) {
         mControllers = controllers;
         mNavButtonsView.getLayoutParams().height = mContext.getDeviceProfile().taskbarSize;
-        mNavButtonTranslationYMultiplier.value = 1;
 
         boolean isThreeButtonNav = mContext.isThreeButtonNav();
         mIsImeRenderingNavButtons =
@@ -205,9 +207,9 @@
         // Make sure to remove nav bar buttons translation when notification shade is expanded or
         // IME is showing (add separate translation for IME).
         int flagsToRemoveTranslation = FLAG_NOTIFICATION_SHADE_EXPANDED | FLAG_IME_VISIBLE;
-        mPropertyHolders.add(new StatePropertyHolder(mNavButtonTranslationYMultiplier,
+        mPropertyHolders.add(new StatePropertyHolder(mNavButtonInAppDisplayProgressForSysui,
                 flags -> (flags & flagsToRemoveTranslation) != 0, AnimatedFloat.VALUE,
-                0, 1));
+                1, 0));
         // Center nav buttons in new height for IME.
         float transForIme = (mContext.getDeviceProfile().taskbarSize
                 - mControllers.taskbarInsetsController.getTaskbarHeightForIme()) / 2f;
@@ -526,6 +528,11 @@
         return mTaskbarNavButtonTranslationY;
     }
 
+    /** Use to set the translationY for the all nav+contextual buttons when in Launcher */
+    public AnimatedFloat getTaskbarNavButtonTranslationYForInAppDisplay() {
+        return mTaskbarNavButtonTranslationYForInAppDisplay;
+    }
+
     /** Use to set the dark intensity for the all nav+contextual buttons */
     public AnimatedFloat getTaskbarNavButtonDarkIntensity() {
         return mTaskbarNavButtonDarkIntensity;
@@ -554,11 +561,26 @@
         }
     }
 
+    private void updateNavButtonInAppDisplayProgressForSysui() {
+        TaskbarUIController uiController = mControllers.uiController;
+        if (uiController instanceof LauncherTaskbarUIController) {
+            ((LauncherTaskbarUIController) uiController).onTaskbarInAppDisplayProgressUpdate(
+                    mNavButtonInAppDisplayProgressForSysui.value, SYSUI_SURFACE_PROGRESS_INDEX);
+        }
+    }
+
     private void updateNavButtonTranslationY() {
-        float normalTranslationY = mTaskbarNavButtonTranslationY.value
-                * mNavButtonTranslationYMultiplier.value;
-        float otherTranslationY = mTaskbarNavButtonTranslationYForIme.value;
-        mNavButtonsView.setTranslationY(normalTranslationY + otherTranslationY);
+        final float normalTranslationY = mTaskbarNavButtonTranslationY.value;
+        final float imeAdjustmentTranslationY = mTaskbarNavButtonTranslationYForIme.value;
+        TaskbarUIController uiController = mControllers.uiController;
+        final float inAppDisplayAdjustmentTranslationY =
+                (uiController instanceof LauncherTaskbarUIController
+                        && ((LauncherTaskbarUIController) uiController).shouldUseInAppLayout())
+                        ? mTaskbarNavButtonTranslationYForInAppDisplay.value : 0;
+
+        mNavButtonsView.setTranslationY(normalTranslationY
+                + imeAdjustmentTranslationY
+                + inAppDisplayAdjustmentTranslationY);
     }
 
     private void updateNavButtonDarkIntensity() {
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index b349637..2f32219 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -199,7 +199,7 @@
                 new TaskbarInsetsController(this));
     }
 
-    public void init(TaskbarSharedState sharedState) {
+    public void init(@NonNull TaskbarSharedState sharedState) {
         mLastRequestedNonFullscreenHeight = getDefaultTaskbarWindowHeight();
         mWindowLayoutParams = createDefaultWindowLayoutParams();
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
index ff08e3d..449e0a7 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
@@ -61,6 +61,8 @@
     private boolean mAreAllControllersInitialized;
     private final List<Runnable> mPostInitCallbacks = new ArrayList<>();
 
+    @Nullable private TaskbarSharedState mSharedState = null;
+
     public TaskbarControllers(TaskbarActivityContext taskbarActivityContext,
             TaskbarDragController taskbarDragController,
             TaskbarNavButtonController navButtonController,
@@ -104,8 +106,9 @@
      * TaskbarControllers instance, but should be careful to only access things that were created
      * in constructors for now, as some controllers may still be waiting for init().
      */
-    public void init(TaskbarSharedState sharedState) {
+    public void init(@NonNull TaskbarSharedState sharedState) {
         mAreAllControllersInitialized = false;
+        mSharedState = sharedState;
 
         taskbarDragController.init(this);
         navbarButtonsViewController.init(this);
@@ -116,11 +119,11 @@
         taskbarUnfoldAnimationController.init(this);
         taskbarKeyguardController.init(navbarButtonsViewController);
         stashedHandleViewController.init(this);
-        taskbarStashController.init(this, sharedState);
+        taskbarStashController.init(this, sharedState.setupUIVisible);
         taskbarEduController.init(this);
         taskbarPopupController.init(this);
         taskbarForceVisibleImmersiveController.init(this);
-        taskbarAllAppsController.init(this, sharedState);
+        taskbarAllAppsController.init(this, sharedState.allAppsVisible);
         navButtonController.init(this);
         taskbarInsetsController.init(this);
 
@@ -139,6 +142,12 @@
         mPostInitCallbacks.clear();
     }
 
+    @Nullable
+    public TaskbarSharedState getSharedState() {
+        // This should only be null if called before init() and after destroy().
+        return mSharedState;
+    }
+
     public void onConfigurationChanged(@Config int configChanges) {
         navbarButtonsViewController.onConfigurationChanged(configChanges);
     }
@@ -147,6 +156,8 @@
      * Cleans up all controllers.
      */
     public void onDestroy() {
+        mSharedState = null;
+
         navbarButtonsViewController.onDestroy();
         uiController.onDestroy();
         rotationButtonController.onDestroy();
@@ -187,9 +198,12 @@
             return;
         }
 
+        pw.println(String.format(
+                "%s\tmAreAllControllersInitialized=%b", prefix, mAreAllControllersInitialized));
         for (LoggableTaskbarController controller : mControllersToLog) {
             controller.dumpLogs(prefix + "\t", pw);
         }
+        uiController.dumpLogs(prefix + "\t", pw);
         rotationButtonController.dumpLogs(prefix + "\t", pw);
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java
index 5c10565..c522888 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java
@@ -73,6 +73,7 @@
 import java.io.PrintWriter;
 import java.util.Arrays;
 import java.util.Collections;
+import java.util.function.Predicate;
 
 /**
  * Handles long click on Taskbar items to start a system drag and drop operation.
@@ -439,12 +440,12 @@
                 target = taskbarViewController.getAllAppsButtonView();
             } else if (item.container >= 0) {
                 // Since folders close when the drag starts, target the folder icon instead.
-                ItemInfoMatcher matcher = ItemInfoMatcher.forFolderMatch(
+                Predicate<ItemInfo> matcher = ItemInfoMatcher.forFolderMatch(
                         ItemInfoMatcher.ofItemIds(IntSet.wrap(item.id)));
                 target = taskbarViewController.getFirstIconMatch(matcher);
             } else if (item.itemType == ITEM_TYPE_DEEP_SHORTCUT) {
                 // Find first icon with same package/user as the deep shortcut.
-                ItemInfoMatcher packageUserMatcher = ItemInfoMatcher.ofPackages(
+                Predicate<ItemInfo> packageUserMatcher = ItemInfoMatcher.ofPackages(
                         Collections.singleton(item.getTargetPackage()), item.user);
                 target = taskbarViewController.getFirstIconMatch(packageUserMatcher);
             }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
index 36e6420..138fb99 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
@@ -42,7 +42,9 @@
 import com.android.systemui.animation.ViewRootSync;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 
+import java.io.PrintWriter;
 import java.util.HashMap;
+import java.util.StringJoiner;
 import java.util.function.Consumer;
 import java.util.function.Supplier;
 
@@ -476,4 +478,48 @@
             controller.applyState();
         }
     }
+
+    private static String getStateString(int flags) {
+        StringJoiner str = new StringJoiner("|");
+        str.add((flags & FLAG_RESUMED) != 0 ? "FLAG_RESUMED" : "");
+        str.add((flags & FLAG_RECENTS_ANIMATION_RUNNING) != 0
+                ? "FLAG_RECENTS_ANIMATION_RUNNING" : "");
+        str.add((flags & FLAG_TRANSITION_STATE_RUNNING) != 0
+                ? "FLAG_TRANSITION_STATE_RUNNING" : "");
+        return str.toString();
+    }
+
+    protected void dumpLogs(String prefix, PrintWriter pw) {
+        pw.println(prefix + "TaskbarLauncherStateController:");
+
+        pw.println(String.format(
+                "%s\tmIconAlignmentForResumedState=%.2f",
+                prefix,
+                mIconAlignmentForResumedState.value));
+        pw.println(String.format(
+                "%s\tmIconAlignmentForGestureState=%.2f",
+                prefix,
+                mIconAlignmentForGestureState.value));
+        pw.println(String.format(
+                "%s\tmIconAlignmentForLauncherState=%.2f",
+                prefix,
+                mIconAlignmentForLauncherState.value));
+        pw.println(String.format(
+                "%s\tmTaskbarBackgroundAlpha=%.2f", prefix, mTaskbarBackgroundAlpha.value));
+        pw.println(String.format(
+                "%s\tmIconAlphaForHome=%.2f", prefix, mIconAlphaForHome.getValue()));
+        pw.println(String.format("%s\tmPrevState=%s", prefix, getStateString(mPrevState)));
+        pw.println(String.format("%s\tmState=%s", prefix, getStateString(mState)));
+        pw.println(String.format("%s\tmLauncherState=%s", prefix, mLauncherState));
+        pw.println(String.format(
+                "%s\tmIsAnimatingToLauncherViaGesture=%b",
+                prefix,
+                mIsAnimatingToLauncherViaGesture));
+        pw.println(String.format(
+                "%s\tmIsAnimatingToLauncherViaResume=%b",
+                prefix,
+                mIsAnimatingToLauncherViaResume));
+        pw.println(String.format(
+                "%s\tmShouldDelayLauncherStateAnim=%b", prefix, mShouldDelayLauncherStateAnim));
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
index e02a9d7..2e37170 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
@@ -194,6 +194,9 @@
      * Sets a {@link StatefulActivity} to act as taskbar callback
      */
     public void setActivity(@NonNull StatefulActivity activity) {
+        if (mActivity == activity) {
+            return;
+        }
         mActivity = activity;
         mUnfoldProgressProvider.setSourceProvider(getUnfoldTransitionProgressProviderForActivity(
                 activity));
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarModelCallbacks.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarModelCallbacks.java
index 62392ee..75881a3 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarModelCallbacks.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarModelCallbacks.java
@@ -36,6 +36,7 @@
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
+import java.util.function.Predicate;
 
 /**
  * Launcher model Callbacks for rendering taskbar.
@@ -126,16 +127,16 @@
     }
 
     @Override
-    public void bindWorkspaceComponentsRemoved(ItemInfoMatcher matcher) {
+    public void bindWorkspaceComponentsRemoved(Predicate<ItemInfo> matcher) {
         if (handleItemsRemoved(matcher)) {
             commitItemsToUI();
         }
     }
 
-    private boolean handleItemsRemoved(ItemInfoMatcher matcher) {
+    private boolean handleItemsRemoved(Predicate<ItemInfo> matcher) {
         boolean modified = false;
         for (int i = mHotseatItems.size() - 1; i >= 0; i--) {
-            if (matcher.matchesInfo(mHotseatItems.valueAt(i))) {
+            if (matcher.test(mHotseatItems.valueAt(i))) {
                 modified = true;
                 mHotseatItems.removeAt(i);
             }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarSharedState.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarSharedState.java
index a5c55b0..87b3789 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarSharedState.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarSharedState.java
@@ -25,5 +25,4 @@
     public boolean setupUIVisible = false;
 
     public boolean allAppsVisible = false;
-
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
index f34759d..7d95743 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
@@ -17,6 +17,7 @@
 
 import static android.view.HapticFeedbackConstants.LONG_PRESS;
 
+import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASKBAR_LONGPRESS_HIDE;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASKBAR_LONGPRESS_SHOW;
 import static com.android.launcher3.taskbar.Utilities.appendFlag;
@@ -34,7 +35,6 @@
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.taskbar.allapps.TaskbarAllAppsSlideInView;
 import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.util.MultiValueAlpha.AlphaProperty;
 import com.android.quickstep.AnimatedFloat;
@@ -167,7 +167,7 @@
         mStashedHeight = mActivity.getDeviceProfile().stashedTaskbarSize;
     }
 
-    public void init(TaskbarControllers controllers, TaskbarSharedState sharedState) {
+    public void init(TaskbarControllers controllers, boolean setupUIVisible) {
         mControllers = controllers;
 
         TaskbarDragLayerController dragLayerController = controllers.taskbarDragLayerController;
@@ -188,7 +188,7 @@
 
         boolean isManuallyStashedInApp = supportsManualStashing()
                 && mPrefs.getBoolean(SHARED_PREFS_STASHED_KEY, DEFAULT_STASHED_PREF);
-        boolean isInSetup = !mActivity.isUserSetupComplete() || sharedState.setupUIVisible;
+        boolean isInSetup = !mActivity.isUserSetupComplete() || setupUIVisible;
         updateStateForFlag(FLAG_STASHED_IN_APP_MANUAL, isManuallyStashedInApp);
         updateStateForFlag(FLAG_STASHED_IN_APP_SETUP, isInSetup);
         updateStateForFlag(FLAG_IN_SETUP, isInSetup);
@@ -202,7 +202,7 @@
      * state.
      */
     public boolean supportsVisualStashing() {
-        return !mActivity.isThreeButtonNav();
+        return mControllers.uiController.supportsVisualStashing();
     }
 
     /**
@@ -275,7 +275,7 @@
         return !mIsStashed && isInApp();
     }
 
-    private boolean isInApp() {
+    public boolean isInApp() {
         return hasAnyFlag(FLAGS_IN_APP);
     }
 
@@ -564,7 +564,8 @@
 
         updateStateForFlag(FLAG_STASHED_IN_APP_ALL_APPS, false);
         if (applyState) {
-            applyState(TaskbarAllAppsSlideInView.DEFAULT_CLOSE_DURATION);
+            applyState(ALL_APPS.getTransitionDuration(
+                    mControllers.taskbarActivityContext, false /* isToState */));
         }
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
index d5c399b..fcc34c6 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
@@ -22,6 +22,7 @@
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.ItemInfoWithIcon;
 
+import java.io.PrintWriter;
 import java.util.stream.Stream;
 
 /**
@@ -48,6 +49,11 @@
         return true;
     }
 
+    public boolean supportsVisualStashing() {
+        if (mControllers == null) return false;
+        return !mControllers.taskbarActivityContext.isThreeButtonNav();
+    }
+
     protected void onStashedInAppChanged() { }
 
     public Stream<ItemInfoWithIcon> getAppIconsForEdu() {
@@ -86,4 +92,12 @@
             stashController.applyState();
         }
     }
+
+    @CallSuper
+    protected void dumpLogs(String prefix, PrintWriter pw) {
+        pw.println(String.format(
+                "%sTaskbarUIController: using an instance of %s",
+                prefix,
+                getClass().getSimpleName()));
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
index 7548398..6f88d64 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
@@ -41,12 +41,13 @@
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
 import com.android.launcher3.uioverrides.ApiWrapper;
-import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.LauncherBindableItemsContainer;
 import com.android.launcher3.views.ActivityContext;
 import com.android.launcher3.views.AllAppsButton;
 import com.android.launcher3.views.DoubleShadowBubbleTextView;
 
+import java.util.function.Predicate;
+
 /**
  * Hosts the Taskbar content such as Hotseat and Recent Apps. Drawn on top of other apps.
  */
@@ -424,8 +425,8 @@
      * Finds the first icon to match one of the given matchers, from highest to lowest priority.
      * @return The first match, or All Apps button if no match was found.
      */
-    public View getFirstMatch(ItemInfoMatcher... matchers) {
-        for (ItemInfoMatcher matcher : matchers) {
+    public View getFirstMatch(Predicate<ItemInfo>... matchers) {
+        for (Predicate<ItemInfo> matcher : matchers) {
             for (int i = 0; i < getChildCount(); i++) {
                 View item = getChildAt(i);
                 if (!(item.getTag() instanceof ItemInfo)) {
@@ -433,7 +434,7 @@
                     continue;
                 }
                 ItemInfo info = (ItemInfo) item.getTag();
-                if (matcher.matchesInfo(info)) {
+                if (matcher.test(info)) {
                     return item;
                 }
             }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
index 6416720..5db495d 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
@@ -47,6 +47,7 @@
 import com.android.quickstep.AnimatedFloat;
 
 import java.io.PrintWriter;
+import java.util.function.Predicate;
 
 /**
  * Handles properties/data collection, then passes the results to TaskbarView to render.
@@ -73,6 +74,7 @@
     private final AnimatedFloat mTaskbarIconTranslationYForStash = new AnimatedFloat(
             this::updateTranslationY);
     private AnimatedFloat mTaskbarNavButtonTranslationY;
+    private AnimatedFloat mTaskbarNavButtonTranslationYForInAppDisplay;
 
     private final AnimatedFloat mThemeIconsBackground = new AnimatedFloat(
             this::updateIconsBackground);
@@ -112,6 +114,8 @@
         }
         mTaskbarNavButtonTranslationY =
                 controllers.navbarButtonsViewController.getTaskbarNavButtonTranslationY();
+        mTaskbarNavButtonTranslationYForInAppDisplay = controllers.navbarButtonsViewController
+                .getTaskbarNavButtonTranslationYForInAppDisplay();
     }
 
     public void onDestroy() {
@@ -242,6 +246,7 @@
         int offsetY = launcherDp.getTaskbarOffsetY();
         setter.setFloat(mTaskbarIconTranslationYForHome, VALUE, -offsetY, LINEAR);
         setter.setFloat(mTaskbarNavButtonTranslationY, VALUE, -offsetY, LINEAR);
+        setter.setFloat(mTaskbarNavButtonTranslationYForInAppDisplay, VALUE, offsetY, LINEAR);
 
         if (Utilities.isDarkTheme(mTaskbarView.getContext())) {
             setter.addFloat(mThemeIconsBackground, VALUE, 0f, 1f, LINEAR);
@@ -258,12 +263,14 @@
             View child = mTaskbarView.getChildAt(i);
 
             int positionInHotseat = -1;
-            if (FeatureFlags.ENABLE_ALL_APPS_IN_TASKBAR.get() && i == count - 1) {
+            boolean isRtl = Utilities.isRtl(child.getResources());
+            if (FeatureFlags.ENABLE_ALL_APPS_IN_TASKBAR.get()
+                    && ((isRtl && i == 0) || (!isRtl && i == count - 1))) {
                 // Note that there is no All Apps button in the hotseat, this position is only used
                 // as its convenient for animation purposes.
-                positionInHotseat = Utilities.isRtl(child.getResources())
+                positionInHotseat = isRtl
                         ? -1
-                        : mActivity.getDeviceProfile().inv.numShownHotseatIcons;
+                        : mActivity.getDeviceProfile().numShownHotseatIcons;
 
                 setter.setViewAlpha(child, 0, LINEAR);
             } else if (child.getTag() instanceof ItemInfo) {
@@ -289,10 +296,12 @@
     }
 
     public void onRotationChanged(DeviceProfile deviceProfile) {
-        if (areIconsVisible()) {
+        if (mControllers.taskbarStashController.isInApp()) {
             // We only translate on rotation when on home
             return;
         }
+        mActivity.setTaskbarWindowHeight(
+                deviceProfile.taskbarSize + deviceProfile.getTaskbarOffsetY());
         mTaskbarNavButtonTranslationY.updateValue(-deviceProfile.getTaskbarOffsetY());
     }
 
@@ -309,8 +318,8 @@
      * 2) FolderIcon of the Folder containing the given icon
      * 3) All Apps button
      */
-    public View getFirstIconMatch(ItemInfoMatcher matcher) {
-        ItemInfoMatcher folderMatcher = ItemInfoMatcher.forFolderMatch(matcher);
+    public View getFirstIconMatch(Predicate<ItemInfo> matcher) {
+        Predicate<ItemInfo> folderMatcher = ItemInfoMatcher.forFolderMatch(matcher);
         return mTaskbarView.getFirstMatch(matcher, folderMatcher);
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsController.java b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsController.java
index 9fca8eb..eaf9384 100644
--- a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsController.java
@@ -38,7 +38,6 @@
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.taskbar.TaskbarActivityContext;
 import com.android.launcher3.taskbar.TaskbarControllers;
-import com.android.launcher3.taskbar.TaskbarSharedState;
 import com.android.systemui.shared.system.TaskStackChangeListener;
 import com.android.systemui.shared.system.TaskStackChangeListeners;
 
@@ -72,7 +71,6 @@
     };
 
     private TaskbarControllers mControllers;
-    private TaskbarSharedState mSharedState;
     /** Window context for all apps if it is open. */
     private @Nullable TaskbarAllAppsContext mAllAppsContext;
 
@@ -88,18 +86,17 @@
     }
 
     /** Initialize the controller. */
-    public void init(TaskbarControllers controllers, TaskbarSharedState sharedState) {
+    public void init(TaskbarControllers controllers, boolean allAppsVisible) {
         if (!FeatureFlags.ENABLE_ALL_APPS_IN_TASKBAR.get()) {
             return;
         }
         mControllers = controllers;
-        mSharedState = sharedState;
 
         /*
          * Recreate All Apps if it was open in the previous Taskbar instance (e.g. the configuration
          * changed).
          */
-        if (mSharedState.allAppsVisible) {
+        if (allAppsVisible) {
             show(false);
         }
     }
@@ -141,7 +138,9 @@
             return;
         }
         mProxyView.show();
-        mSharedState.allAppsVisible = true;
+        // mControllers and getSharedState should never be null here. Do not handle null-pointer
+        // to catch invalid states.
+        mControllers.getSharedState().allAppsVisible = true;
 
         mAllAppsContext = new TaskbarAllAppsContext(mTaskbarContext,
                 this,
@@ -176,7 +175,9 @@
             return;
         }
         mProxyView.close(false);
-        mSharedState.allAppsVisible = false;
+        // mControllers and getSharedState should never be null here. Do not handle null-pointer
+        // to catch invalid states.
+        mControllers.getSharedState().allAppsVisible = false;
         onDestroy();
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsSlideInView.java b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsSlideInView.java
index a37ebac..2d7ce32 100644
--- a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsSlideInView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsSlideInView.java
@@ -15,13 +15,16 @@
  */
 package com.android.launcher3.taskbar.allapps;
 
+import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.anim.Interpolators.AGGRESSIVE_EASE;
+import static com.android.systemui.animation.Interpolators.EMPHASIZED_ACCELERATE;
 
 import android.animation.PropertyValuesHolder;
 import android.content.Context;
 import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
+import android.view.animation.Interpolator;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Insettable;
@@ -33,9 +36,6 @@
 /** Wrapper for taskbar all apps with slide-in behavior. */
 public class TaskbarAllAppsSlideInView extends AbstractSlideInView<TaskbarAllAppsContext>
         implements Insettable, DeviceProfile.OnDeviceProfileChangeListener {
-    static final int DEFAULT_OPEN_DURATION = 500;
-    public static final int DEFAULT_CLOSE_DURATION = 200;
-
     private TaskbarAllAppsContainerView mAppsView;
     private OnCloseListener mOnCloseBeginListener;
     private float mShiftRange;
@@ -61,7 +61,8 @@
             mOpenCloseAnimator.setValues(
                     PropertyValuesHolder.ofFloat(TRANSLATION_SHIFT, TRANSLATION_SHIFT_OPENED));
             mOpenCloseAnimator.setInterpolator(AGGRESSIVE_EASE);
-            mOpenCloseAnimator.setDuration(DEFAULT_OPEN_DURATION).start();
+            mOpenCloseAnimator.setDuration(
+                    ALL_APPS.getTransitionDuration(mContext, true /* isToState */)).start();
         } else {
             mTranslationShift = TRANSLATION_SHIFT_OPENED;
         }
@@ -80,7 +81,12 @@
     @Override
     protected void handleClose(boolean animate) {
         Optional.ofNullable(mOnCloseBeginListener).ifPresent(OnCloseListener::onSlideInViewClosed);
-        handleClose(animate, DEFAULT_CLOSE_DURATION);
+        handleClose(animate, ALL_APPS.getTransitionDuration(mContext, false /* isToState */));
+    }
+
+    @Override
+    protected Interpolator getIdleInterpolator() {
+        return EMPHASIZED_ACCELERATE;
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsViewController.java b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsViewController.java
index f19b7de..a39e872 100644
--- a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsViewController.java
@@ -15,8 +15,8 @@
  */
 package com.android.launcher3.taskbar.allapps;
 
+import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.taskbar.TaskbarStashController.FLAG_STASHED_IN_APP_ALL_APPS;
-import static com.android.launcher3.taskbar.allapps.TaskbarAllAppsSlideInView.DEFAULT_OPEN_DURATION;
 import static com.android.launcher3.util.OnboardingPrefs.ALL_APPS_VISITED_COUNT;
 
 import com.android.launcher3.AbstractFloatingView;
@@ -81,7 +81,8 @@
 
     private void setUpTaskbarStashing() {
         mTaskbarStashController.updateStateForFlag(FLAG_STASHED_IN_APP_ALL_APPS, true);
-        mTaskbarStashController.applyState(DEFAULT_OPEN_DURATION);
+        mTaskbarStashController.applyState(
+                ALL_APPS.getTransitionDuration(mContext, true /* isToState */));
         mSlideInView.setOnCloseBeginListener(() -> {
             AbstractFloatingView.closeOpenContainer(
                     mContext, AbstractFloatingView.TYPE_ACTION_POPUP);
diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index 7c52e80..4bb4343 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -70,7 +70,6 @@
 import com.android.launcher3.uioverrides.touchcontrollers.TwoButtonNavbarTouchController;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.DisplayController.NavigationMode;
-import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.PendingRequestArgs;
 import com.android.launcher3.util.TouchController;
 import com.android.launcher3.util.UiThreadHelper;
@@ -86,6 +85,7 @@
 import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.Objects;
+import java.util.function.Predicate;
 import java.util.stream.Stream;
 
 public class QuickstepLauncher extends BaseQuickstepLauncher {
@@ -245,7 +245,7 @@
     }
 
     @Override
-    public void bindWorkspaceComponentsRemoved(ItemInfoMatcher matcher) {
+    public void bindWorkspaceComponentsRemoved(Predicate<ItemInfo> matcher) {
         super.bindWorkspaceComponentsRemoved(matcher);
         mHotseatPredictionController.onModelItemsRemoved(matcher);
     }
diff --git a/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java b/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
index 86f26c3..00a98c0 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
@@ -118,7 +118,7 @@
         if (toState == OVERVIEW_SPLIT_SELECT) {
             // Animation to "dismiss" selected taskView
             PendingAnimation splitSelectInitAnimation = mRecentsView.createSplitSelectInitAnimation(
-                    toState.getTransitionDuration(mLauncher));
+                    toState.getTransitionDuration(mLauncher, true /* isToState */));
             // Add properties to shift remaining taskViews to get out of placeholder view
             splitSelectInitAnimation.setFloat(mRecentsView, taskViewsFloat.first,
                     toState.getSplitSelectTranslation(mLauncher), LINEAR);
diff --git a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
index df0ac7c..fe0bca6 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
@@ -33,12 +33,12 @@
 import com.android.systemui.shared.plugins.PluginManager;
 import com.android.systemui.shared.plugins.PluginManagerImpl;
 import com.android.systemui.shared.plugins.PluginPrefs;
+import com.android.systemui.shared.system.UncaughtExceptionPreHandlerManager;
 
 import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
-import java.util.Optional;
 import java.util.Set;
 
 public class PluginManagerWrapper {
@@ -48,6 +48,9 @@
 
     public static final String PLUGIN_CHANGED = PluginManager.PLUGIN_CHANGED;
 
+    private static final UncaughtExceptionPreHandlerManager UNCAUGHT_EXCEPTION_PRE_HANDLER_MANAGER =
+            new UncaughtExceptionPreHandlerManager();
+
     private final Context mContext;
     private final PluginManager mPluginManager;
     private final PluginEnablerImpl mPluginEnabler;
@@ -67,7 +70,7 @@
 
         mPluginManager = new PluginManagerImpl(c, instanceManagerFactory,
                 Utilities.IS_DEBUG_DEVICE,
-                Optional.ofNullable(Thread.getDefaultUncaughtExceptionHandler()), mPluginEnabler,
+                UNCAUGHT_EXCEPTION_PRE_HANDLER_MANAGER, mPluginEnabler,
                 new PluginPrefs(c), privilegedPlugins);
     }
 
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java b/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java
index cd14b3f..c25a815 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java
@@ -30,15 +30,16 @@
  */
 public class AllAppsState extends LauncherState {
 
-    private static final int STATE_FLAGS = FLAG_WORKSPACE_INACCESSIBLE | FLAG_CLOSE_POPUPS;
+    private static final int STATE_FLAGS =
+            FLAG_WORKSPACE_INACCESSIBLE | FLAG_CLOSE_POPUPS | FLAG_HOTSEAT_INACCESSIBLE;
 
     public AllAppsState(int id) {
         super(id, LAUNCHER_STATE_ALLAPPS, STATE_FLAGS);
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
-        return 150;
+    public int getTransitionDuration(Context context, boolean isToState) {
+        return isToState ? 500 : 300;
     }
 
     @Override
@@ -88,7 +89,9 @@
 
     @Override
     public int getVisibleElements(Launcher launcher) {
-        return ALL_APPS_CONTENT | HOTSEAT_ICONS;
+        // Don't add HOTSEAT_ICONS for phones in ALL_APPS state.
+        return launcher.getDeviceProfile().isPhone ? ALL_APPS_CONTENT
+                : ALL_APPS_CONTENT | HOTSEAT_ICONS;
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java
index 6f084a1..0c49e5f 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java
@@ -40,7 +40,7 @@
     }
 
     @Override
-    public int getTransitionDuration(Context launcher) {
+    public int getTransitionDuration(Context launcher, boolean isToState) {
         return 300;
     }
 
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
index 236454e..699ce97 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
@@ -22,10 +22,12 @@
 import android.graphics.Rect;
 import android.os.SystemProperties;
 
+import com.android.launcher3.BaseQuickstepLauncher;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
+import com.android.launcher3.taskbar.LauncherTaskbarUIController;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.Themes;
 import com.android.quickstep.util.LayoutUtils;
@@ -56,7 +58,7 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
+    public int getTransitionDuration(Context context, boolean isToState) {
         // In gesture modes, overview comes in all the way from the side, so give it more time.
         return DisplayController.getNavigationMode(context).hasGestures ? 380 : 250;
     }
@@ -93,7 +95,13 @@
 
     @Override
     public boolean isTaskbarStashed(Launcher launcher) {
-        return true;
+        if (launcher instanceof BaseQuickstepLauncher) {
+            LauncherTaskbarUIController uiController =
+                    ((BaseQuickstepLauncher) launcher).getTaskbarUIController();
+
+            return uiController != null && uiController.supportsVisualStashing();
+        }
+        return super.isTaskbarStashed(launcher);
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java b/quickstep/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java
index b1d83e7..b5b03a1 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java
@@ -42,6 +42,7 @@
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_X;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_Y;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_SCRIM_FADE;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_VERTICAL_PROGRESS;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_FADE;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_SCALE;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_TRANSLATE;
@@ -50,6 +51,8 @@
 import static com.android.launcher3.uioverrides.touchcontrollers.PortraitStatesTouchController.ALL_APPS_SCRIM_OPAQUE_THRESHOLD;
 import static com.android.launcher3.uioverrides.touchcontrollers.PortraitStatesTouchController.ALL_APPS_SCRIM_VISIBLE_THRESHOLD;
 import static com.android.quickstep.views.RecentsView.RECENTS_SCALE_PROPERTY;
+import static com.android.systemui.animation.Interpolators.EMPHASIZED_ACCELERATE;
+import static com.android.systemui.animation.Interpolators.EMPHASIZED_DECELERATE;
 
 import android.animation.ValueAnimator;
 
@@ -179,12 +182,17 @@
             }
             config.duration = Math.max(config.duration, mHintToNormalDuration);
         } else if (fromState == ALL_APPS && toState == NORMAL) {
-            config.setInterpolator(ANIM_ALL_APPS_FADE, Interpolators.clampToProgress(DEACCEL,
-                    1 - ALL_APPS_CONTENT_FADE_MAX_CLAMPING_THRESHOLD,
-                    1 - ALL_APPS_CONTENT_FADE_MIN_CLAMPING_THRESHOLD));
-            config.setInterpolator(ANIM_SCRIM_FADE, Interpolators.clampToProgress(DEACCEL,
+            boolean isTablet = mActivity.getDeviceProfile().isTablet;
+            config.setInterpolator(ANIM_ALL_APPS_FADE,
+                    isTablet ? FINAL_FRAME : Interpolators.clampToProgress(LINEAR,
+                            1 - ALL_APPS_CONTENT_FADE_MAX_CLAMPING_THRESHOLD,
+                            1 - ALL_APPS_CONTENT_FADE_MIN_CLAMPING_THRESHOLD));
+            config.setInterpolator(ANIM_SCRIM_FADE, Interpolators.clampToProgress(LINEAR,
                     1 - ALL_APPS_SCRIM_OPAQUE_THRESHOLD,
                     1 - ALL_APPS_SCRIM_VISIBLE_THRESHOLD));
+            config.setInterpolator(ANIM_VERTICAL_PROGRESS, EMPHASIZED_ACCELERATE);
+        } else if (fromState == NORMAL && toState == ALL_APPS) {
+            config.setInterpolator(ANIM_VERTICAL_PROGRESS, EMPHASIZED_DECELERATE);
         }
     }
 }
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java
index 7ec1243..4da1d41 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java
@@ -180,7 +180,7 @@
             // Normally we compute the duration based on the velocity and distance to the given
             // state, but since the hint state tracks the entire screen without a clear endpoint, we
             // need to manually set the duration to a reasonable value.
-            animator.setDuration(HINT_STATE.getTransitionDuration(mLauncher));
+            animator.setDuration(HINT_STATE.getTransitionDuration(mLauncher, true /* isToState */));
         }
     }
 
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java
index 27a55c3..1504c12 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java
@@ -21,10 +21,9 @@
 import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.OVERVIEW;
-import static com.android.launcher3.anim.Interpolators.ACCEL;
-import static com.android.launcher3.anim.Interpolators.DEACCEL;
 import static com.android.launcher3.anim.Interpolators.FINAL_FRAME;
 import static com.android.launcher3.anim.Interpolators.INSTANT;
+import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_ALL_APPS_FADE;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_SCRIM_FADE;
 
@@ -131,10 +130,10 @@
         boolean isTablet = mLauncher.getDeviceProfile().isTablet;
         builder.setInterpolator(ANIM_ALL_APPS_FADE, isTablet
                 ? INSTANT
-                : Interpolators.clampToProgress(ACCEL,
+                : Interpolators.clampToProgress(LINEAR,
                         ALL_APPS_CONTENT_FADE_MIN_CLAMPING_THRESHOLD,
                         ALL_APPS_CONTENT_FADE_MAX_CLAMPING_THRESHOLD));
-        builder.setInterpolator(ANIM_SCRIM_FADE, Interpolators.clampToProgress(ACCEL,
+        builder.setInterpolator(ANIM_SCRIM_FADE, Interpolators.clampToProgress(LINEAR,
                 ALL_APPS_SCRIM_VISIBLE_THRESHOLD,
                 ALL_APPS_SCRIM_OPAQUE_THRESHOLD));
         return builder;
@@ -145,10 +144,10 @@
         boolean isTablet = mLauncher.getDeviceProfile().isTablet;
         builder.setInterpolator(ANIM_ALL_APPS_FADE, isTablet
                 ? FINAL_FRAME
-                : Interpolators.clampToProgress(DEACCEL,
+                : Interpolators.clampToProgress(LINEAR,
                         1 - ALL_APPS_CONTENT_FADE_MAX_CLAMPING_THRESHOLD,
                         1 - ALL_APPS_CONTENT_FADE_MIN_CLAMPING_THRESHOLD));
-        builder.setInterpolator(ANIM_SCRIM_FADE, Interpolators.clampToProgress(DEACCEL,
+        builder.setInterpolator(ANIM_SCRIM_FADE, Interpolators.clampToProgress(LINEAR,
                 1 - ALL_APPS_SCRIM_OPAQUE_THRESHOLD,
                 1 - ALL_APPS_SCRIM_VISIBLE_THRESHOLD));
         return builder;
diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index b90e820..5acce89 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -163,7 +163,11 @@
                     if (mActivity != activity) {
                         return;
                     }
+                    if (mTaskAnimationManager != null) {
+                        mTaskAnimationManager.finishRunningRecentsAnimation(true);
+                    }
                     mRecentsView = null;
+                    mActivity.unregisterActivityLifecycleCallbacks(mLifecycleCallbacks);
                     mActivity = null;
                 }
             };
@@ -1571,9 +1575,6 @@
 
     private void reset() {
         mStateCallback.setStateOnUiThread(STATE_HANDLER_INVALIDATED);
-        if (mActivity != null) {
-            mActivity.unregisterActivityLifecycleCallbacks(mLifecycleCallbacks);
-        }
     }
 
     /**
diff --git a/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java b/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
index 6e81b6f..dc65b50 100644
--- a/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
+++ b/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
@@ -45,6 +45,7 @@
 import com.android.systemui.shared.system.QuickStepContract;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
+
 /**
  * Controls the animation of swiping back and returning to launcher.
  *
@@ -87,6 +88,7 @@
     private boolean mAnimatorSetInProgress = false;
     private float mBackProgress = 0;
     private boolean mBackInProgress = false;
+    private IOnBackInvokedCallback mBackCallback;
 
     public LauncherBackAnimationController(
             BaseQuickstepLauncher launcher,
@@ -112,34 +114,35 @@
      * @param handler Handler to the thread to run the animations on.
      */
     public void registerBackCallbacks(Handler handler) {
-        SystemUiProxy.INSTANCE.get(mLauncher).setBackToLauncherCallback(
-                new IOnBackInvokedCallback.Stub() {
-                    @Override
-                    public void onBackCancelled() {
-                        handler.post(() -> resetPositionAnimated());
-                    }
+        mBackCallback = new IOnBackInvokedCallback.Stub() {
+            @Override
+            public void onBackCancelled() {
+                handler.post(() -> resetPositionAnimated());
+            }
 
-                    @Override
-                    public void onBackInvoked() {
-                        handler.post(() -> startTransition());
-                    }
+            @Override
+            public void onBackInvoked() {
+                handler.post(() -> startTransition());
+            }
 
-                    @Override
-                    public void onBackProgressed(BackEvent backEvent) {
-                        mBackProgress = backEvent.getProgress();
-                        // TODO: Update once the interpolation curve spec is finalized.
-                        mBackProgress =
-                                1 - (1 - mBackProgress) * (1 - mBackProgress) * (1
-                                        - mBackProgress);
-                        if (!mBackInProgress) {
-                            startBack(backEvent);
-                        } else {
-                            updateBackProgress(mBackProgress, backEvent);
-                        }
-                    }
+            @Override
+            public void onBackProgressed(BackEvent backEvent) {
+                mBackProgress = backEvent.getProgress();
+                // TODO: Update once the interpolation curve spec is finalized.
+                mBackProgress =
+                        1 - (1 - mBackProgress) * (1 - mBackProgress) * (1
+                                - mBackProgress);
+                if (!mBackInProgress) {
+                    startBack(backEvent);
+                } else {
+                    updateBackProgress(mBackProgress, backEvent);
+                }
+            }
 
-                    public void onBackStarted() { }
-                });
+            @Override
+            public void onBackStarted() { }
+        };
+        SystemUiProxy.INSTANCE.get(mLauncher).setBackToLauncherCallback(mBackCallback);
     }
 
     private void resetPositionAnimated() {
@@ -162,7 +165,10 @@
 
     /** Unregisters the back to launcher callback in shell. */
     public void unregisterBackCallbacks() {
-        SystemUiProxy.INSTANCE.get(mLauncher).clearBackToLauncherCallback();
+        if (mBackCallback != null) {
+            SystemUiProxy.INSTANCE.get(mLauncher).clearBackToLauncherCallback(mBackCallback);
+        }
+        mBackCallback = null;
     }
 
     private void startBack(BackEvent backEvent) {
diff --git a/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java b/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java
index fe31f1d..51ae56b 100644
--- a/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java
+++ b/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java
@@ -104,8 +104,7 @@
                 .map(RemoteAnimationTargetCompat::unwrap)
                 .toArray(RemoteAnimationTarget[]::new);
 
-        RemoteAnimationTarget[] nonAppTargets =
-                mSystemUiProxy.onGoingToRecentsLegacy(mCancelled, nonHomeApps);
+        RemoteAnimationTarget[] nonAppTargets = mSystemUiProxy.onGoingToRecentsLegacy(nonHomeApps);
 
         RecentsAnimationTargets targets = new RecentsAnimationTargets(appTargets,
                 wallpaperTargets, RemoteAnimationTargetCompat.wrap(nonAppTargets),
diff --git a/quickstep/src/com/android/quickstep/SystemUiProxy.java b/quickstep/src/com/android/quickstep/SystemUiProxy.java
index 5ef89d3..39d8b54 100644
--- a/quickstep/src/com/android/quickstep/SystemUiProxy.java
+++ b/quickstep/src/com/android/quickstep/SystemUiProxy.java
@@ -676,14 +676,12 @@
      * Call this when going to recents so that shell can set-up and provide appropriate leashes
      * for animation (eg. DividerBar).
      *
-     * @param cancel true if recents starting is being cancelled.
      * @return RemoteAnimationTargets of windows that need to animate but only exist in shell.
      */
-    public RemoteAnimationTarget[] onGoingToRecentsLegacy(boolean cancel,
-            RemoteAnimationTarget[] apps) {
+    public RemoteAnimationTarget[] onGoingToRecentsLegacy(RemoteAnimationTarget[] apps) {
         if (mSplitScreen != null) {
             try {
-                return mSplitScreen.onGoingToRecentsLegacy(cancel, apps);
+                return mSplitScreen.onGoingToRecentsLegacy(apps);
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call onGoingToRecentsLegacy");
             }
@@ -691,6 +689,17 @@
         return null;
     }
 
+    public RemoteAnimationTarget[] onStartingSplitLegacy(RemoteAnimationTarget[] apps) {
+        if (mSplitScreen != null) {
+            try {
+                return mSplitScreen.onStartingSplitLegacy(apps);
+            } catch (RemoteException e) {
+                Log.w(TAG, "Failed call onStartingSplitLegacy");
+            }
+        }
+        return null;
+    }
+
     //
     // One handed
     //
@@ -847,8 +856,14 @@
         }
     }
 
-    /** Clears the previously registered {@link IOnBackInvokedCallback}. */
-    public void clearBackToLauncherCallback() {
+    /** Clears the previously registered {@link IOnBackInvokedCallback}.
+     *
+     * @param callback The previously registered callback instance.
+     */
+    public void clearBackToLauncherCallback(IOnBackInvokedCallback callback) {
+        if (mBackToLauncherCallback != callback) {
+            return;
+        }
         mBackToLauncherCallback = null;
         if (mBackAnimation == null) {
             return;
diff --git a/quickstep/src/com/android/quickstep/TaskAnimationManager.java b/quickstep/src/com/android/quickstep/TaskAnimationManager.java
index f094d71..2565674 100644
--- a/quickstep/src/com/android/quickstep/TaskAnimationManager.java
+++ b/quickstep/src/com/android/quickstep/TaskAnimationManager.java
@@ -177,8 +177,9 @@
                     ((RecentsActivity) activityInterface.getCreatedActivity()).startHome();
                     return;
                 }
-                RemoteAnimationTarget[] nonAppTargets = SystemUiProxy.INSTANCE.get(mCtx)
-                        .onGoingToRecentsLegacy(false, nonHomeApps);
+
+                RemoteAnimationTarget[] nonAppTargets =
+                        SystemUiProxy.INSTANCE.getNoCreate().onStartingSplitLegacy(nonHomeApps);
 
                 if (ENABLE_QUICKSTEP_LIVE_TILE.get() && activityInterface.isInLiveTileMode()
                         && activityInterface.getCreatedActivity() != null) {
diff --git a/quickstep/src/com/android/quickstep/TaskIconCache.java b/quickstep/src/com/android/quickstep/TaskIconCache.java
index 300f085..3803f03 100644
--- a/quickstep/src/com/android/quickstep/TaskIconCache.java
+++ b/quickstep/src/com/android/quickstep/TaskIconCache.java
@@ -256,7 +256,7 @@
     private BaseIconFactory getIconFactory() {
         if (mIconFactory == null) {
             mIconFactory = new BaseIconFactory(mContext,
-                    DisplayController.INSTANCE.get(mContext).getInfo().densityDpi,
+                    DisplayController.INSTANCE.get(mContext).getInfo().getDensityDpi(),
                     mContext.getResources().getDimensionPixelSize(R.dimen.taskbar_icon_size));
         }
         return mIconFactory;
diff --git a/quickstep/src/com/android/quickstep/TaskOverlayFactory.java b/quickstep/src/com/android/quickstep/TaskOverlayFactory.java
index d94e5f1..f53491b 100644
--- a/quickstep/src/com/android/quickstep/TaskOverlayFactory.java
+++ b/quickstep/src/com/android/quickstep/TaskOverlayFactory.java
@@ -320,6 +320,10 @@
                     Toast.LENGTH_LONG).show();
         }
 
+        /** Called when the snapshot has updated its full screen drawing parameters. */
+        public void setFullscreenParams(TaskView.FullscreenDrawParams fullscreenParams) {
+        }
+
         private class ScreenshotSystemShortcut extends SystemShortcut {
 
             private final BaseDraggingActivity mActivity;
diff --git a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
index 5094d49..f68bbbc 100644
--- a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
+++ b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
@@ -112,7 +112,7 @@
         RecentsState currentState = mActivity.getStateManager().getState();
         if (isSplitSelectionState(state) && !isSplitSelectionState(currentState)) {
             setter.add(mRecentsView.createSplitSelectInitAnimation(
-                    state.getTransitionDuration(mActivity)).buildAnim());
+                    state.getTransitionDuration(mActivity, true /* isToState */)).buildAnim());
         }
 
         Pair<FloatProperty, FloatProperty> taskViewsFloat =
diff --git a/quickstep/src/com/android/quickstep/fallback/RecentsState.java b/quickstep/src/com/android/quickstep/fallback/RecentsState.java
index 9705bb6..77db6b7 100644
--- a/quickstep/src/com/android/quickstep/fallback/RecentsState.java
+++ b/quickstep/src/com/android/quickstep/fallback/RecentsState.java
@@ -77,7 +77,7 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
+    public int getTransitionDuration(Context context, boolean isToState) {
         return 250;
     }
 
diff --git a/quickstep/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java b/quickstep/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
index 11f0ff3..10b4ff9 100644
--- a/quickstep/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
+++ b/quickstep/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
@@ -27,6 +27,7 @@
 import static com.android.launcher3.PagedView.DEBUG_FAILED_QUICKSWITCH;
 import static com.android.launcher3.Utilities.EDGE_NAV_BAR;
 import static com.android.launcher3.Utilities.squaredHypot;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.TraceHelper.FLAG_CHECK_FOR_RACE_CONDITIONS;
 import static com.android.launcher3.util.VelocityUtils.PX_PER_MS;
 import static com.android.quickstep.util.ActiveGestureLog.INTENT_EXTRA_LOG_TRACE_ID;
@@ -47,6 +48,7 @@
 import androidx.annotation.UiThread;
 
 import com.android.launcher3.R;
+import com.android.launcher3.Utilities;
 import com.android.launcher3.testing.TestLogging;
 import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.tracing.InputConsumerProto;
@@ -58,7 +60,9 @@
 import com.android.quickstep.GestureState;
 import com.android.quickstep.InputConsumer;
 import com.android.quickstep.RecentsAnimationCallbacks;
+import com.android.quickstep.RecentsAnimationController;
 import com.android.quickstep.RecentsAnimationDeviceState;
+import com.android.quickstep.RecentsAnimationTargets;
 import com.android.quickstep.RotationTouchHelper;
 import com.android.quickstep.TaskAnimationManager;
 import com.android.quickstep.util.ActiveGestureLog;
@@ -107,6 +111,7 @@
     private VelocityTracker mVelocityTracker;
 
     private AbsSwipeUpHandler mInteractionHandler;
+    private final FinishImmediatelyHandler mCleanupHandler = new FinishImmediatelyHandler();
 
     private final boolean mIsDeferredDownTarget;
     private final PointF mDownPos = new PointF();
@@ -377,6 +382,7 @@
 
         if (mTaskAnimationManager.isRecentsAnimationRunning()) {
             mActiveCallbacks = mTaskAnimationManager.continueRecentsAnimation(mGestureState);
+            mActiveCallbacks.removeListener(mCleanupHandler);
             mActiveCallbacks.addListener(mInteractionHandler);
             mTaskAnimationManager.notifyRecentsAnimationState(mInteractionHandler);
             notifyGestureStarted(true /*isLikelyToStartNewTask*/);
@@ -414,7 +420,19 @@
             }
         } else {
             // Since we start touch tracking on DOWN, we may reach this state without actually
-            // starting the gesture. In that case, just cleanup immediately.
+            // starting the gesture. In that case, we need to clean-up an unfinished or un-started
+            // animation.
+            if (mActiveCallbacks != null && mInteractionHandler != null) {
+                if (mTaskAnimationManager.isRecentsAnimationRunning()) {
+                    // The animation started, but with no movement, in this case, there will be no
+                    // animateToProgress so we have to manually finish here.
+                    mTaskAnimationManager.finishRunningRecentsAnimation(false /* toHome */);
+                } else {
+                    // The animation hasn't started yet, so insert a replacement handler into the
+                    // callbacks which immediately finishes the animation after it starts.
+                    mActiveCallbacks.addListener(mCleanupHandler);
+                }
+            }
             onConsumerAboutToBeSwitched();
             onInteractionGestureFinished();
 
@@ -457,7 +475,7 @@
     }
 
     private void removeListener() {
-        if (mActiveCallbacks != null) {
+        if (mActiveCallbacks != null && mInteractionHandler != null) {
             mActiveCallbacks.removeListener(mInteractionHandler);
         }
     }
@@ -483,4 +501,19 @@
             mInteractionHandler.writeToProto(inputConsumerProto);
         }
     }
+
+    /**
+     * A listener which just finishes the animation immediately after starting. Replaces
+     * AbsSwipeUpHandler if the gesture itself finishes before the animation even starts.
+     */
+    private static class FinishImmediatelyHandler
+            implements RecentsAnimationCallbacks.RecentsAnimationListener {
+
+        public void onRecentsAnimationStart(RecentsAnimationController controller,
+                RecentsAnimationTargets targets) {
+            Utilities.postAsyncCallback(MAIN_EXECUTOR.getHandler(), () -> {
+                controller.finish(false /* toRecents */, null);
+            });
+        }
+    }
 }
diff --git a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java
index 9ba5577..35d9f22 100644
--- a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java
+++ b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java
@@ -33,17 +33,22 @@
     }
 
     @Override
-    public Integer getIntroductionTitle() {
+    public int getIntroductionTitle() {
         return R.string.back_gesture_intro_title;
     }
 
     @Override
-    public Integer getIntroductionSubtitle() {
+    public int getIntroductionSubtitle() {
         return R.string.back_gesture_intro_subtitle;
     }
 
     @Override
-    public Integer getSuccessFeedbackSubtitle() {
+    public int getSpokenIntroductionSubtitle() {
+        return R.string.back_gesture_spoken_intro_subtitle;
+    }
+
+    @Override
+    public int getSuccessFeedbackSubtitle() {
         return mTutorialFragment.isAtFinalStep()
                 ? R.string.back_gesture_feedback_complete_without_follow_up
                 : R.string.back_gesture_feedback_complete_with_overview_follow_up;
diff --git a/quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java b/quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java
index 6254313..f519d50 100644
--- a/quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java
+++ b/quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java
@@ -32,17 +32,22 @@
     }
 
     @Override
-    public Integer getIntroductionTitle() {
+    public int getIntroductionTitle() {
         return R.string.home_gesture_intro_title;
     }
 
     @Override
-    public Integer getIntroductionSubtitle() {
+    public int getIntroductionSubtitle() {
         return R.string.home_gesture_intro_subtitle;
     }
 
     @Override
-    public Integer getSuccessFeedbackSubtitle() {
+    public int getSpokenIntroductionSubtitle() {
+        return R.string.home_gesture_spoken_intro_subtitle;
+    }
+
+    @Override
+    public int getSuccessFeedbackSubtitle() {
         return mTutorialFragment.isAtFinalStep()
                 ? R.string.home_gesture_feedback_complete_without_follow_up
                 : R.string.home_gesture_feedback_complete_with_follow_up;
diff --git a/quickstep/src/com/android/quickstep/interaction/OverviewGestureTutorialController.java b/quickstep/src/com/android/quickstep/interaction/OverviewGestureTutorialController.java
index 09640c6..6b016ce 100644
--- a/quickstep/src/com/android/quickstep/interaction/OverviewGestureTutorialController.java
+++ b/quickstep/src/com/android/quickstep/interaction/OverviewGestureTutorialController.java
@@ -42,17 +42,22 @@
     }
 
     @Override
-    public Integer getIntroductionTitle() {
+    public int getIntroductionTitle() {
         return R.string.overview_gesture_intro_title;
     }
 
     @Override
-    public Integer getIntroductionSubtitle() {
+    public int getIntroductionSubtitle() {
         return R.string.overview_gesture_intro_subtitle;
     }
 
     @Override
-    public Integer getSuccessFeedbackSubtitle() {
+    public int getSpokenIntroductionSubtitle() {
+        return R.string.overview_gesture_spoken_intro_subtitle;
+    }
+
+    @Override
+    public int getSuccessFeedbackSubtitle() {
         return mTutorialFragment.getNumSteps() > 1 && mTutorialFragment.isAtFinalStep()
                 ? R.string.overview_gesture_feedback_complete_with_follow_up
                 : R.string.overview_gesture_feedback_complete_without_follow_up;
diff --git a/quickstep/src/com/android/quickstep/interaction/TutorialController.java b/quickstep/src/com/android/quickstep/interaction/TutorialController.java
index 6a8894e..fa7d848 100644
--- a/quickstep/src/com/android/quickstep/interaction/TutorialController.java
+++ b/quickstep/src/com/android/quickstep/interaction/TutorialController.java
@@ -62,7 +62,7 @@
 abstract class TutorialController implements BackGestureAttemptCallback,
         NavBarGestureAttemptCallback {
 
-    private static final String TAG = "TutorialController";
+    private static final String LOG_TAG = "TutorialController";
 
     private static final float FINGER_DOT_VISIBLE_ALPHA = 0.7f;
     private static final float FINGER_DOT_SMALL_SCALE = 0.7f;
@@ -217,18 +217,23 @@
     }
 
     @StringRes
-    public Integer getIntroductionTitle() {
-        return null;
+    public int getIntroductionTitle() {
+        return NO_ID;
     }
 
     @StringRes
-    public Integer getIntroductionSubtitle() {
-        return null;
+    public int getIntroductionSubtitle() {
+        return NO_ID;
     }
 
     @StringRes
-    public Integer getSuccessFeedbackSubtitle() {
-        return null;
+    public int getSpokenIntroductionSubtitle() {
+        return NO_ID;
+    }
+
+    @StringRes
+    public int getSuccessFeedbackSubtitle() {
+        return NO_ID;
     }
 
     void showFeedback() {
@@ -247,7 +252,16 @@
      * Show feedback reflecting a successful gesture attempt.
      **/
     void showSuccessFeedback() {
-        showFeedback(getSuccessFeedbackSubtitle(), true);
+        int successSubtitleResId = getSuccessFeedbackSubtitle();
+        if (successSubtitleResId == NO_ID) {
+            // Allow crash since this should never be reached with a tutorial controller used in
+            // production.
+            Log.e(LOG_TAG,
+                    "Cannot show success feedback for tutorial step: " + mTutorialType
+                            + ", no success feedback subtitle",
+                    new IllegalStateException());
+        }
+        showFeedback(successSubtitleResId, true);
     }
 
     /**
@@ -269,6 +283,7 @@
                 isGestureSuccessful
                         ? R.string.gesture_tutorial_nice : R.string.gesture_tutorial_try_again,
                 subtitleResId,
+                NO_ID,
                 isGestureSuccessful,
                 false);
     }
@@ -276,6 +291,7 @@
     void showFeedback(
             int titleResId,
             int subtitleResId,
+            int spokenSubtitleResId,
             boolean isGestureSuccessful,
             boolean useGestureAnimationDelay) {
         mFeedbackTitleView.removeCallbacks(mTitleViewCallback);
@@ -287,7 +303,10 @@
         mFeedbackTitleView.setText(titleResId);
         TextView subtitle =
                 mFeedbackView.findViewById(R.id.gesture_tutorial_fragment_feedback_subtitle);
-        subtitle.setText(subtitleResId);
+        subtitle.setText(spokenSubtitleResId == NO_ID
+                ? mContext.getText(subtitleResId)
+                : Utilities.wrapForTts(
+                        mContext.getText(subtitleResId), mContext.getString(spokenSubtitleResId)));
         if (isGestureSuccessful) {
             if (mTutorialFragment.isAtFinalStep()) {
                 showActionButton();
@@ -580,7 +599,7 @@
                         packageManager.getApplicationInfo(
                                 PIXEL_TIPS_APP_PACKAGE_NAME, PackageManager.GET_META_DATA));
             } catch (PackageManager.NameNotFoundException e) {
-                Log.e(TAG,
+                Log.e(LOG_TAG,
                         "Could not find app label for package name: "
                                 + PIXEL_TIPS_APP_PACKAGE_NAME
                                 + ". Defaulting to 'Pixel Tips.'",
@@ -593,7 +612,7 @@
                 subtitleTextView.setText(
                         mContext.getString(R.string.skip_tutorial_dialog_subtitle, tipsAppName));
             } else {
-                Log.w(TAG, "No subtitle view in the skip tutorial dialog to update.");
+                Log.w(LOG_TAG, "No subtitle view in the skip tutorial dialog to update.");
             }
 
             Button cancelButton = (Button) contentView.findViewById(
@@ -602,7 +621,7 @@
                 cancelButton.setOnClickListener(
                         v -> tutorialDialog.dismiss());
             } else {
-                Log.w(TAG, "No cancel button in the skip tutorial dialog to update.");
+                Log.w(LOG_TAG, "No cancel button in the skip tutorial dialog to update.");
             }
 
             Button confirmButton = contentView.findViewById(
@@ -613,7 +632,7 @@
                     tutorialDialog.dismiss();
                 });
             } else {
-                Log.w(TAG, "No confirm button in the skip tutorial dialog to update.");
+                Log.w(LOG_TAG, "No confirm button in the skip tutorial dialog to update.");
             }
 
             tutorialDialog.getWindow().setBackgroundDrawable(
diff --git a/quickstep/src/com/android/quickstep/interaction/TutorialFragment.java b/quickstep/src/com/android/quickstep/interaction/TutorialFragment.java
index 33e800d..1599c8c 100644
--- a/quickstep/src/com/android/quickstep/interaction/TutorialFragment.java
+++ b/quickstep/src/com/android/quickstep/interaction/TutorialFragment.java
@@ -15,6 +15,8 @@
  */
 package com.android.quickstep.interaction;
 
+import static android.view.View.NO_ID;
+
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.app.Activity;
@@ -211,13 +213,31 @@
         if (isGestureComplete()) {
             mTutorialController.showSuccessFeedback();
         } else if (!mIntroductionShown) {
-            Integer introTileStringResId = mTutorialController.getIntroductionTitle();
-            Integer introSubtitleResId = mTutorialController.getIntroductionSubtitle();
-            if (introTileStringResId != null && introSubtitleResId != null) {
-                mTutorialController.showFeedback(
-                        introTileStringResId, introSubtitleResId, false, true);
-                mIntroductionShown = true;
+            int introTitleResId = mTutorialController.getIntroductionTitle();
+            int introSubtitleResId = mTutorialController.getIntroductionSubtitle();
+            if (introTitleResId == NO_ID) {
+                // Allow crash since this should never be reached with a tutorial controller used in
+                // production.
+                Log.e(LOG_TAG,
+                        "Cannot show introduction feedback for tutorial step: " + mTutorialType
+                                + ", no introduction feedback title",
+                        new IllegalStateException());
             }
+            if (introTitleResId == NO_ID) {
+                // Allow crash since this should never be reached with a tutorial controller used in
+                // production.
+                Log.e(LOG_TAG,
+                        "Cannot show introduction feedback for tutorial step: " + mTutorialType
+                                + ", no introduction feedback subtitle",
+                        new IllegalStateException());
+            }
+            mTutorialController.showFeedback(
+                    introTitleResId,
+                    introSubtitleResId,
+                    mTutorialController.getSpokenIntroductionSubtitle(),
+                    false,
+                    true);
+            mIntroductionShown = true;
         }
     }
 
diff --git a/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java b/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java
index 5cf4f0b..3cec1a4 100644
--- a/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java
+++ b/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java
@@ -82,7 +82,7 @@
             // WorkspaceRevealAnim handles the depth, so don't interfere.
             config.animFlags |= StateAnimationConfig.SKIP_DEPTH_CONTROLLER;
         }
-        config.duration = startState.getTransitionDuration(mLauncher);
+        config.duration = startState.getTransitionDuration(mLauncher, false /* isToState */);
         AnimatorSet stateAnim = stateManager.createAtomicAnimation(
                 startState, NORMAL, config);
         stateAnim.addListener(new AnimationSuccessListener() {
diff --git a/quickstep/src/com/android/quickstep/views/FloatingTaskView.java b/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
index 54420de..c980d1e 100644
--- a/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
+++ b/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
@@ -196,6 +196,13 @@
                     0, 1, ACCEL);
             animation.addFloat(mThumbnailView, LauncherAnimUtils.VIEW_ALPHA,
                     1, 0, DEACCEL_3);
+        } else if (isStagedTask) {
+            // Fade in the placeholder view when split is initiated from homescreen / all apps
+            // icons.
+            if (mSplitPlaceholderView.getAlpha() == 0) {
+                animation.addFloat(mSplitPlaceholderView, SplitPlaceholderView.ALPHA_FLOAT,
+                        0.3f, 1, ACCEL);
+            }
         }
 
         MultiValueUpdateListener listener = new MultiValueUpdateListener() {
diff --git a/quickstep/src/com/android/quickstep/views/OverviewActionsView.java b/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
index 49a540f..1c4e497 100644
--- a/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
+++ b/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
@@ -56,7 +56,6 @@
             HIDDEN_NON_ZERO_ROTATION,
             HIDDEN_NO_TASKS,
             HIDDEN_NO_RECENTS,
-            HIDDEN_FOCUSED_SCROLL,
             HIDDEN_SPLIT_SCREEN})
     @Retention(RetentionPolicy.SOURCE)
     public @interface ActionsHiddenFlags { }
@@ -64,8 +63,7 @@
     public static final int HIDDEN_NON_ZERO_ROTATION = 1 << 0;
     public static final int HIDDEN_NO_TASKS = 1 << 1;
     public static final int HIDDEN_NO_RECENTS = 1 << 2;
-    public static final int HIDDEN_FOCUSED_SCROLL = 1 << 3;
-    public static final int HIDDEN_SPLIT_SCREEN = 1 << 4;
+    public static final int HIDDEN_SPLIT_SCREEN = 1 << 3;
 
     @IntDef(flag = true, value = {
             DISABLED_SCROLLING,
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 5d71ebd..224c1f6 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -378,6 +378,8 @@
     // OverScroll constants
     private static final int OVERSCROLL_PAGE_SNAP_ANIMATION_DURATION = 270;
 
+    private static final int DEFAULT_ACTIONS_VIEW_ALPHA_ANIMATION_DURATION = 300;
+
     private static final int DISMISS_TASK_DURATION = 300;
     private static final int ADDITION_TASK_DURATION = 200;
     private static final float INITIAL_DISMISS_TRANSLATION_INTERPOLATION_OFFSET = 0.55f;
@@ -652,6 +654,8 @@
     private TaskView mMovingTaskView;
 
     private OverviewActionsView mActionsView;
+    private ObjectAnimator mActionsViewAlphaAnimator;
+    private float mActionsViewAlphaAnimatorFinalValue;
 
     private MultiWindowModeChangedListener mMultiWindowModeChangedListener =
             new MultiWindowModeChangedListener() {
@@ -1145,6 +1149,11 @@
         return getScrollForPage(taskIndex) == getPagedOrientationHandler().getPrimaryScroll(this);
     }
 
+    private boolean isFocusedTaskInExpectedScrollPosition() {
+        TaskView focusedTask = getFocusedTaskView();
+        return focusedTask != null && isTaskInExpectedScrollPosition(indexOfChild(focusedTask));
+    }
+
     /**
      * Returns a {@link TaskView} that has taskId matching {@code taskId} or null if no match.
      */
@@ -1191,13 +1200,15 @@
     @Override
     protected void onPageBeginTransition() {
         super.onPageBeginTransition();
-        mActionsView.updateDisabledFlags(OverviewActionsView.DISABLED_SCROLLING, true);
+        if (!mActivity.getDeviceProfile().isTablet) {
+            mActionsView.updateDisabledFlags(OverviewActionsView.DISABLED_SCROLLING, true);
+        }
     }
 
     @Override
     protected void onPageEndTransition() {
         super.onPageEndTransition();
-        if (isClearAllHidden()) {
+        if (isClearAllHidden() && !mActivity.getDeviceProfile().isTablet) {
             mActionsView.updateDisabledFlags(OverviewActionsView.DISABLED_SCROLLING, false);
         }
         if (getNextPage() > 0) {
@@ -1808,16 +1819,24 @@
     }
 
     private void updateActionsViewFocusedScroll() {
-        boolean hiddenFocusedScroll;
         if (showAsGrid()) {
-            TaskView focusedTaskView = getFocusedTaskView();
-            hiddenFocusedScroll = focusedTaskView == null
-                    || !isTaskInExpectedScrollPosition(indexOfChild(focusedTaskView));
-        } else {
-            hiddenFocusedScroll = false;
+            float actionsViewAlphaValue = isFocusedTaskInExpectedScrollPosition() ? 1 : 0;
+            // If animation is already in progress towards the same end value, do not restart.
+            if (mActionsViewAlphaAnimator == null || !mActionsViewAlphaAnimator.isStarted()
+                    || (mActionsViewAlphaAnimator.isStarted()
+                    && mActionsViewAlphaAnimatorFinalValue != actionsViewAlphaValue)) {
+                animateActionsViewAlpha(actionsViewAlphaValue,
+                        DEFAULT_ACTIONS_VIEW_ALPHA_ANIMATION_DURATION);
+            }
         }
-        mActionsView.updateHiddenFlags(OverviewActionsView.HIDDEN_FOCUSED_SCROLL,
-                hiddenFocusedScroll);
+    }
+
+    private void animateActionsViewAlpha(float alphaValue, long duration) {
+        mActionsViewAlphaAnimator = ObjectAnimator.ofFloat(
+                mActionsView.getVisibilityAlpha(), MultiValueAlpha.VALUE, alphaValue);
+        mActionsViewAlphaAnimatorFinalValue = alphaValue;
+        mActionsViewAlphaAnimator.setDuration(duration);
+        mActionsViewAlphaAnimator.start();
     }
 
     /**
@@ -2346,10 +2365,9 @@
     }
 
     private void animateActionsViewIn() {
-        ObjectAnimator anim = ObjectAnimator.ofFloat(
-                mActionsView.getVisibilityAlpha(), MultiValueAlpha.VALUE, 0, 1);
-        anim.setDuration(TaskView.SCALE_ICON_DURATION);
-        anim.start();
+        if (!showAsGrid() || isFocusedTaskInExpectedScrollPosition()) {
+            animateActionsViewAlpha(1, TaskView.SCALE_ICON_DURATION);
+        }
     }
 
     public void animateUpTaskIconScale() {
@@ -2739,16 +2757,15 @@
                     mSplitHiddenTaskView.getThumbnail().getThumbnail(),
                     mSplitHiddenTaskView.getIconView().getDrawable(), startingTaskRect);
             mFirstFloatingTaskView.setAlpha(1);
-            mFirstFloatingTaskView.addAnimation(anim, startingTaskRect,
-                    mTempRect, true /* fadeWithThumbnail */, true /* isStagedTask */);
+            mFirstFloatingTaskView.addAnimation(anim, startingTaskRect, mTempRect,
+                    true /* fadeWithThumbnail */, true /* isStagedTask */);
         } else {
-            mSplitSelectSource.view.setVisibility(INVISIBLE);
             mFirstFloatingTaskView = FloatingTaskView.getFloatingTaskView(mActivity,
-                    mSplitSelectSource.view, null,
+                    mSplitSelectSource.view, null /* thumbnail */,
                     mSplitSelectSource.drawable, startingTaskRect);
             mFirstFloatingTaskView.setAlpha(1);
-            mFirstFloatingTaskView.addAnimation(anim, startingTaskRect,
-                    mTempRect, true /* fadeWithThumbnail */, true /* isStagedTask */);
+            mFirstFloatingTaskView.addAnimation(anim, startingTaskRect, mTempRect,
+                    false /* fadeWithThumbnail */, true /* isStagedTask */);
         }
         InteractionJankMonitorWrapper.begin(this,
                 InteractionJankMonitorWrapper.CUJ_SPLIT_SCREEN_ENTER, "First tile selected");
@@ -3292,7 +3309,7 @@
                         // Update various scroll-dependent UI.
                         dispatchScrollChanged();
                         updateActionsViewFocusedScroll();
-                        if (isClearAllHidden()) {
+                        if (isClearAllHidden() && !mActivity.getDeviceProfile().isTablet) {
                             mActionsView.updateDisabledFlags(OverviewActionsView.DISABLED_SCROLLING,
                                     false);
                         }
@@ -4041,7 +4058,8 @@
         // TODO(194414938) starting bounds seem slightly off, investigate
         Rect firstTaskStartingBounds = new Rect();
         Rect firstTaskEndingBounds = mTempRect;
-        int duration = mActivity.getStateManager().getState().getTransitionDuration(getContext());
+        int duration = mActivity.getStateManager().getState().getTransitionDuration(getContext(),
+                false /* isToState */);
         PendingAnimation pendingAnimation = new PendingAnimation(duration);
 
         int halfDividerSize = getResources()
diff --git a/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java b/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java
index bff8651..d8120ff 100644
--- a/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java
@@ -283,6 +283,7 @@
 
     public void setFullscreenParams(TaskView.FullscreenDrawParams fullscreenParams) {
         mFullscreenParams = fullscreenParams;
+        getTaskOverlay().setFullscreenParams(fullscreenParams);
         invalidate();
     }
 
diff --git a/quickstep/src/com/android/quickstep/views/TaskView.java b/quickstep/src/com/android/quickstep/views/TaskView.java
index 8869ff1..b5971f2 100644
--- a/quickstep/src/com/android/quickstep/views/TaskView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskView.java
@@ -1022,7 +1022,7 @@
     }
 
     public float getTaskCornerRadius() {
-        return TaskCornerRadius.get(mActivity);
+        return mCurrentFullscreenParams.mCornerRadius;
     }
 
     @Override
diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index dd3e08b..e85969b 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -306,6 +306,17 @@
         if not specified -->
         <attr name="allAppsBorderSpaceTwoPanelLandscapeVertical" format="float" />
 
+        <!-- alignment of hotseat to the grid.
+        Not applicable for 3 button mode when taskbar is enabled -->
+        <!-- defaults to numColumns, if not specified -->
+        <attr name="hotseatColumnSpan" format="integer" />
+        <!-- defaults to numColumns, if not specified -->
+        <attr name="hotseatColumnSpanLandscape" format="integer" />
+        <!-- defaults to numColumns, if not specified -->
+        <attr name="hotseatColumnSpanTwoPanelLandscape" format="integer" />
+        <!-- defaults to numColumns, if not specified -->
+        <attr name="hotseatColumnSpanTwoPanelPortrait" format="integer" />
+
         <!-- defaults to borderSpaceDps, if not specified -->
         <attr name="hotseatBorderSpace" format="float" />
         <!-- defaults to hotseatBorderSpace, if not specified -->
diff --git a/res/xml/device_profiles.xml b/res/xml/device_profiles.xml
index 07ce598..258da80 100644
--- a/res/xml/device_profiles.xml
+++ b/res/xml/device_profiles.xml
@@ -176,6 +176,7 @@
             launcher:allAppsBorderSpaceHorizontal="8"
             launcher:allAppsBorderSpaceVertical="16"
             launcher:allAppsBorderSpaceLandscape="16"
+            launcher:hotseatColumnSpanLandscape="4"
             launcher:hotseatBorderSpace="58"
             launcher:hotseatBorderSpaceLandscape="50.4"
             launcher:canBeDefault="true" />
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 31f1da8..88030ae 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -158,6 +158,7 @@
     public final int numShownHotseatIcons;
     public int hotseatCellHeightPx;
     private final int hotseatExtraVerticalSize;
+    private final boolean areNavButtonsInline;
     // In portrait: size = height, in landscape: size = width
     public int hotseatBarSizePx;
     public int hotseatBarTopPaddingPx;
@@ -358,7 +359,7 @@
 
         // We shrink hotseat sizes regardless of orientation, if nav buttons are inline and QSB
         // might be inline in either orientations, to keep hotseat size consistent across rotation.
-        boolean areNavButtonsInline = isTaskbarPresent && !isGestureMode;
+        areNavButtonsInline = isTaskbarPresent && !isGestureMode;
         if (areNavButtonsInline && canQsbInline) {
             numShownHotseatIcons = inv.numShrunkenHotseatIcons;
         } else {
@@ -373,15 +374,14 @@
                 res.getDimensionPixelSize(R.dimen.dynamic_grid_hotseat_top_padding);
         if (isQsbInline) {
             hotseatBarBottomPaddingPx = res.getDimensionPixelSize(R.dimen.inline_qsb_bottom_margin);
-            qsbWidth = calculateQsbWidth();
         } else {
             hotseatBarBottomPaddingPx = (isTallDevice ? res.getDimensionPixelSize(
                     R.dimen.dynamic_grid_hotseat_bottom_tall_padding)
                     : res.getDimensionPixelSize(
                             R.dimen.dynamic_grid_hotseat_bottom_non_tall_padding))
                     + res.getDimensionPixelSize(R.dimen.dynamic_grid_hotseat_bottom_padding);
-            qsbWidth = 0;
         }
+
         springLoadedHotseatBarTopMarginPx = res.getDimensionPixelSize(
                 R.dimen.spring_loaded_hotseat_top_margin);
         hotseatBarSidePaddingEndPx =
@@ -390,9 +390,7 @@
         hotseatBarSidePaddingStartPx = isVerticalBarLayout() ? workspacePageIndicatorHeight : 0;
         hotseatExtraVerticalSize =
                 res.getDimensionPixelSize(R.dimen.dynamic_grid_hotseat_extra_vertical_size);
-        hotseatBorderSpace = pxFromDp(inv.hotseatBorderSpaces[mTypeIndex], mMetrics);
-        updateHotseatIconSize(
-                pxFromDp(inv.iconSize[INDEX_DEFAULT], mMetrics));
+        updateHotseatIconSize(pxFromDp(inv.iconSize[INDEX_DEFAULT], mMetrics));
 
         qsbBottomMarginOriginalPx = isScalableGrid
                 ? res.getDimensionPixelSize(R.dimen.scalable_grid_qsb_bottom_margin)
@@ -483,6 +481,10 @@
                 cellLayoutPadding);
         updateWorkspacePadding();
 
+        // Hotseat and QSB width depends on updated cellSize and workspace padding
+        hotseatBorderSpace = calculateHotseatBorderSpace();
+        qsbWidth = calculateQsbWidth();
+
         flingToDeleteThresholdVelocity = res.getDimensionPixelSize(
                 R.dimen.drag_flingToDeleteMinVelocity);
 
@@ -493,14 +495,26 @@
                 new DotRenderer(allAppsIconSizePx, dotPath, DEFAULT_DOT_SIZE);
     }
 
+    /**
+     * QSB width is always calculated because when in 3 button nav the width doesn't follow the
+     * width of the hotseat.
+     */
     private int calculateQsbWidth() {
-        int columns = isTwoPanels ? inv.numColumns * 2 : inv.numColumns;
+        if (isQsbInline) {
+            int columns = isTwoPanels ? inv.numColumns * 2 : inv.numColumns;
+            return getIconToIconWidthForColumns(columns)
+                    - iconSizePx * numShownHotseatIcons
+                    - hotseatBorderSpace * numShownHotseatIcons;
+        } else {
+            int columns = inv.hotseatColumnSpan[mTypeIndex];
+            return getIconToIconWidthForColumns(columns);
+        }
+    }
 
-        return cellWidthPx * columns
-                + cellLayoutBorderSpacePx.x * (columns - 1)
-                - (cellWidthPx - iconSizePx) // left and right cell space
-                - iconSizePx * numShownHotseatIcons
-                - hotseatBorderSpace * numShownHotseatIcons;
+    private int getIconToIconWidthForColumns(int columns) {
+        return columns * getCellSize().x
+                + (columns - 1) * cellLayoutBorderSpacePx.x
+                - (getCellSize().x - iconSizePx);  // left and right cell space
     }
 
     private int getHorizontalMarginPx(InvariantDeviceProfile idp, Resources res) {
@@ -741,13 +755,6 @@
         // All apps
         updateAllAppsIconSize(scale, res);
 
-        // Hotseat
-        hotseatBorderSpace = pxFromDp(inv.hotseatBorderSpaces[mTypeIndex], mMetrics, scale);
-        if (isQsbInline) {
-            qsbWidth = calculateQsbWidth();
-        } else {
-            qsbWidth = 0;
-        }
         updateHotseatIconSize(iconSizePx);
 
         // Folder icon
@@ -755,6 +762,23 @@
         folderIconOffsetYPx = (iconSizePx - folderIconSizePx) / 2;
     }
 
+    /**
+     * Hotseat width spans a certain number of columns on scalable grids.
+     * This method calculates the space between the icons to achieve that width.
+     */
+    private int calculateHotseatBorderSpace() {
+        if (!isScalableGrid) return 0;
+        //TODO(http://b/228998082) remove this when 3 button spaces are fixed
+        if (areNavButtonsInline) {
+            return pxFromDp(inv.hotseatBorderSpaces[mTypeIndex], mMetrics);
+        } else {
+            int columns = inv.hotseatColumnSpan[mTypeIndex];
+            float hotseatWidthPx = getIconToIconWidthForColumns(columns);
+            float hotseatIconsTotalPx = iconSizePx * numShownHotseatIcons;
+            return (int) (hotseatWidthPx - hotseatIconsTotalPx) / (numShownHotseatIcons - 1);
+        }
+    }
+
 
     /**
      * Updates the iconSize for allApps* variants.
@@ -1070,6 +1094,13 @@
                 mHotseatPadding.left -= diff;
                 mHotseatPadding.right += diff;
             }
+        } else if (isScalableGrid) {
+            int sideSpacing = (availableWidthPx - qsbWidth) / 2;
+            mHotseatPadding.set(sideSpacing,
+                    hotseatBarTopPaddingPx,
+                    sideSpacing,
+                    hotseatBarSizePx - hotseatCellHeightPx - hotseatBarTopPaddingPx
+                            + mInsets.bottom);
         } else {
             // We want the edges of the hotseat to line up with the edges of the workspace, but the
             // icons in the hotseat are a different size, and so don't line up perfectly. To account
@@ -1306,6 +1337,7 @@
         writer.println(prefix + pxToDpStr("allAppsLeftRightMargin", allAppsLeftRightMargin));
 
         writer.println(prefix + pxToDpStr("hotseatBarSizePx", hotseatBarSizePx));
+        writer.println(prefix + "\tinv.hotseatColumnSpan: " + inv.hotseatColumnSpan[mTypeIndex]);
         writer.println(prefix + pxToDpStr("hotseatCellHeightPx", hotseatCellHeightPx));
         writer.println(prefix + pxToDpStr("hotseatBarTopPaddingPx", hotseatBarTopPaddingPx));
         writer.println(prefix + pxToDpStr("hotseatBarBottomPaddingPx", hotseatBarBottomPaddingPx));
@@ -1384,7 +1416,7 @@
     private static Context getContext(Context c, Info info, int orientation, WindowBounds bounds) {
         Configuration config = new Configuration(c.getResources().getConfiguration());
         config.orientation = orientation;
-        config.densityDpi = info.densityDpi;
+        config.densityDpi = info.getDensityDpi();
         config.smallestScreenWidthDp = (int) info.smallestSizeDp(bounds);
         return c.createConfigurationContext(config);
     }
diff --git a/src/com/android/launcher3/Hotseat.java b/src/com/android/launcher3/Hotseat.java
index a9db5ce..76106fc 100644
--- a/src/com/android/launcher3/Hotseat.java
+++ b/src/com/android/launcher3/Hotseat.java
@@ -173,17 +173,9 @@
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
 
-        int width;
-        if (mActivity.getDeviceProfile().isQsbInline) {
-            width = mActivity.getDeviceProfile().qsbWidth;
-        } else {
-            MarginLayoutParams qsbParams = (MarginLayoutParams) mQsb.getLayoutParams();
-            width = getShortcutsAndWidgets().getMeasuredWidth()
-                    - qsbParams.getMarginStart()
-                    - qsbParams.getMarginEnd();
-        }
+        int qsbWidth = mActivity.getDeviceProfile().qsbWidth;
 
-        mQsb.measure(MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY),
+        mQsb.measure(MeasureSpec.makeMeasureSpec(qsbWidth, MeasureSpec.EXACTLY),
                 MeasureSpec.makeMeasureSpec(mQsbHeight, MeasureSpec.EXACTLY));
     }
 
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index 36c1797..89b1771 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -125,6 +125,7 @@
     public PointF[] borderSpaces;
     public float folderBorderSpace;
     public float[] hotseatBorderSpaces;
+    public int[] hotseatColumnSpan;
 
     public float[] horizontalMargin;
 
@@ -356,6 +357,7 @@
         numDatabaseHotseatIcons = deviceType == TYPE_MULTI_DISPLAY
                 ? closestProfile.numDatabaseHotseatIcons : closestProfile.numHotseatIcons;
         hotseatBorderSpaces = displayOption.hotseatBorderSpaces;
+        hotseatColumnSpan = displayOption.hotseatColumnSpan;
 
         numAllAppsColumns = closestProfile.numAllAppsColumns;
         numDatabaseAllAppsColumns = deviceType == TYPE_MULTI_DISPLAY
@@ -396,7 +398,8 @@
             // We need to ensure that there is enough extra space in the wallpaper
             // for the intended parallax effects
             float parallaxFactor =
-                    dpiFromPx(Math.min(displayWidth, displayHeight), displayInfo.densityDpi) < 720
+                    dpiFromPx(Math.min(displayWidth, displayHeight), displayInfo.getDensityDpi())
+                            < 720
                             ? 2
                             : wallpaperTravelToScreenWidthRatio(displayWidth, displayHeight);
             defaultWallpaperSize.x =
@@ -585,8 +588,8 @@
             }
         }
 
-        float width = dpiFromPx(minWidthPx, displayInfo.densityDpi);
-        float height = dpiFromPx(minHeightPx, displayInfo.densityDpi);
+        float width = dpiFromPx(minWidthPx, displayInfo.getDensityDpi());
+        float height = dpiFromPx(minHeightPx, displayInfo.getDensityDpi());
 
         // Sort the profiles based on the closeness to the device size
         Collections.sort(points, (a, b) ->
@@ -806,7 +809,9 @@
         private float folderBorderSpace;
         private final PointF[] borderSpaces = new PointF[COUNT_SIZES];
         private final float[] horizontalMargin = new float[COUNT_SIZES];
+        //TODO(http://b/228998082) remove this when 3 button spaces are fixed
         private final float[] hotseatBorderSpaces = new float[COUNT_SIZES];
+        private final int[] hotseatColumnSpan = new int[COUNT_SIZES];
 
         private final float[] iconSizes = new float[COUNT_SIZES];
         private final float[] textSizes = new float[COUNT_SIZES];
@@ -1032,6 +1037,17 @@
                     R.styleable.ProfileDisplayOption_hotseatBorderSpaceTwoPanelPortrait,
                     hotseatBorderSpaces[INDEX_DEFAULT]);
 
+            hotseatColumnSpan[INDEX_DEFAULT] = a.getInt(
+                    R.styleable.ProfileDisplayOption_hotseatColumnSpan, grid.numColumns);
+            hotseatColumnSpan[INDEX_LANDSCAPE] = a.getInt(
+                    R.styleable.ProfileDisplayOption_hotseatColumnSpanLandscape, grid.numColumns);
+            hotseatColumnSpan[INDEX_TWO_PANEL_LANDSCAPE] = a.getInt(
+                    R.styleable.ProfileDisplayOption_hotseatColumnSpanTwoPanelLandscape,
+                    grid.numColumns);
+            hotseatColumnSpan[INDEX_TWO_PANEL_PORTRAIT] = a.getInt(
+                    R.styleable.ProfileDisplayOption_hotseatColumnSpanTwoPanelPortrait,
+                    grid.numColumns);
+
             a.recycle();
         }
 
@@ -1090,6 +1106,7 @@
                 minCellSize[i].y += p.minCellSize[i].y;
                 horizontalMargin[i] += p.horizontalMargin[i];
                 hotseatBorderSpaces[i] += p.hotseatBorderSpaces[i];
+                hotseatColumnSpan[i] = p.hotseatColumnSpan[i];
                 allAppsCellSize[i].x += p.allAppsCellSize[i].x;
                 allAppsCellSize[i].y += p.allAppsCellSize[i].y;
                 allAppsIconSizes[i] += p.allAppsIconSizes[i];
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 4b42ecb..2ad1d47 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -182,7 +182,6 @@
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSet;
-import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.OnboardingPrefs;
 import com.android.launcher3.util.PackageManagerHelper;
 import com.android.launcher3.util.PackageUserKey;
@@ -2739,9 +2738,9 @@
      */
     public View getFirstMatchForAppClose(int preferredItemId, String packageName, UserHandle user,
             boolean supportsAllAppsState) {
-        final ItemInfoMatcher preferredItem = (info, cn) ->
+        final Predicate<ItemInfo> preferredItem = info ->
                 info != null && info.id == preferredItemId;
-        final ItemInfoMatcher packageAndUserAndApp = (info, cn) ->
+        final Predicate<ItemInfo> packageAndUserAndApp = info ->
                 info != null
                         && info.itemType == ITEM_TYPE_APPLICATION
                         && info.user.equals(user)
@@ -2770,8 +2769,8 @@
      * @param operators List of operators, in order starting from best matching operator.
      */
     private static View getFirstMatch(Iterable<ViewGroup> containers,
-            final ItemInfoMatcher... operators) {
-        for (ItemInfoMatcher operator : operators) {
+            final Predicate<ItemInfo>... operators) {
+        for (Predicate<ItemInfo> operator : operators) {
             for (ViewGroup container : containers) {
                 View match = mapOverViewGroup(container, operator);
                 if (match != null) {
@@ -2786,11 +2785,11 @@
      * Returns the first view matching the operator in the given ViewGroups, or null if none.
      * Forward iteration matters.
      */
-    private static View mapOverViewGroup(ViewGroup container, ItemInfoMatcher op) {
+    private static View mapOverViewGroup(ViewGroup container, Predicate<ItemInfo> op) {
         final int itemCount = container.getChildCount();
         for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) {
             View item = container.getChildAt(itemIdx);
-            if (op.matchesInfo((ItemInfo) item.getTag())) {
+            if (op.test((ItemInfo) item.getTag())) {
                 return item;
             }
         }
@@ -2887,7 +2886,7 @@
      * package-removal should clear all items by package name.
      */
     @Override
-    public void bindWorkspaceComponentsRemoved(final ItemInfoMatcher matcher) {
+    public void bindWorkspaceComponentsRemoved(Predicate<ItemInfo> matcher) {
         mWorkspace.removeItemsByMatcher(matcher);
         mDragController.onAppsRemoved(matcher);
         PopupContainerWithArrow.dismissInvalidPopup(this);
@@ -3168,6 +3167,24 @@
         return new DragOptions();
     }
 
+    /**
+     * Animates Launcher elements during a transition to the All Apps page.
+     *
+     * @param progress Transition progress from 0 to 1; where 0 => home and 1 => all apps.
+     */
+    public void onAllAppsTransition(float progress) {
+        // No-Op
+    }
+
+    /**
+     * Animates Launcher elements during a transition to the Widgets pages.
+     *
+     * @param progress Transition progress from 0 to 1; where 0 => home and 1 => widgets.
+     */
+    public void onWidgetsTransition(float progress) {
+        // No-Op
+    }
+
     private static class NonConfigInstance {
         public Configuration config;
         public Bitmap snapshot;
diff --git a/src/com/android/launcher3/LauncherState.java b/src/com/android/launcher3/LauncherState.java
index baee49f..ea6a919 100644
--- a/src/com/android/launcher3/LauncherState.java
+++ b/src/com/android/launcher3/LauncherState.java
@@ -80,6 +80,9 @@
     public static final int FLAG_CLOSE_POPUPS = BaseState.getFlag(6);
     public static final int FLAG_OVERVIEW_UI = BaseState.getFlag(7);
 
+    // Flag indicating that hotseat and its contents are not accessible.
+    public static final int FLAG_HOTSEAT_INACCESSIBLE = BaseState.getFlag(8);
+
 
     public static final float NO_OFFSET = 0;
     public static final float NO_SCALE = 1;
@@ -110,7 +113,7 @@
             FLAG_DISABLE_RESTORE | FLAG_WORKSPACE_ICONS_CAN_BE_DRAGGED | FLAG_HIDE_BACK_BUTTON |
                     FLAG_HAS_SYS_UI_SCRIM) {
         @Override
-        public int getTransitionDuration(Context context) {
+        public int getTransitionDuration(Context context, boolean isToState) {
             // Arbitrary duration, when going to NORMAL we use the state we're coming from instead.
             return 0;
         }
diff --git a/src/com/android/launcher3/ResourceUtils.java b/src/com/android/launcher3/ResourceUtils.java
index 1c36db1..f709aca 100644
--- a/src/com/android/launcher3/ResourceUtils.java
+++ b/src/com/android/launcher3/ResourceUtils.java
@@ -31,6 +31,10 @@
     public static final String NAVBAR_HEIGHT = "navigation_bar_height";
     public static final String NAVBAR_HEIGHT_LANDSCAPE = "navigation_bar_height_landscape";
 
+    public static final String STATUS_BAR_HEIGHT = "status_bar_height";
+    public static final String STATUS_BAR_HEIGHT_LANDSCAPE = "status_bar_height_landscape";
+    public static final String STATUS_BAR_HEIGHT_PORTRAIT = "status_bar_height_portrait";
+
     public static int getNavbarSize(String resName, Resources res) {
         return getDimenByName(resName, res, DEFAULT_NAVBAR_VALUE);
     }
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 78771ce..fb028b9 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -102,7 +102,6 @@
 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.LauncherBindableItemsContainer;
 import com.android.launcher3.util.OverlayEdgeEffect;
 import com.android.launcher3.util.PackageUserKey;
@@ -2118,7 +2117,7 @@
                     final Runnable onCompleteCallback = onCompleteRunnable;
                     mLauncher.getDragController().animateDragViewToOriginalPosition(
                             /* onComplete= */ callbackList::executeAllAndDestroy, cell,
-                            SPRING_LOADED.getTransitionDuration(mLauncher));
+                            SPRING_LOADED.getTransitionDuration(mLauncher, true /* isToState */));
                     mLauncher.getStateManager().goToState(NORMAL, /* delay= */ 0,
                             onCompleteCallback == null
                                     ? null
@@ -3235,7 +3234,7 @@
      * as a part of an update, this is called to ensure that other widgets and application
      * shortcuts are not removed.
      */
-    public void removeItemsByMatcher(final ItemInfoMatcher matcher) {
+    public void removeItemsByMatcher(final Predicate<ItemInfo> matcher) {
         for (CellLayout layout : getWorkspaceAndHotseatCellLayouts()) {
             ShortcutAndWidgetContainer container = layout.getShortcutsAndWidgets();
             // Iterate in reverse order as we are removing items
@@ -3243,7 +3242,7 @@
                 View child = container.getChildAt(i);
                 ItemInfo info = (ItemInfo) child.getTag();
 
-                if (matcher.matchesInfo(info)) {
+                if (matcher.test(info)) {
                     layout.removeViewInLayout(child);
                     if (child instanceof DropTarget) {
                         mDragController.removeDropTarget((DropTarget) child);
@@ -3251,7 +3250,7 @@
                 } else if (child instanceof FolderIcon) {
                     FolderInfo folderInfo = (FolderInfo) info;
                     List<WorkspaceItemInfo> matches = folderInfo.contents.stream()
-                            .filter(matcher::matchesInfo)
+                            .filter(matcher)
                             .collect(Collectors.toList());
                     if (!matches.isEmpty()) {
                         folderInfo.removeAll(matches, false);
@@ -3330,7 +3329,7 @@
      *
      * @param matcher  the matcher generated by the caller.
      */
-    public void persistRemoveItemsByMatcher(ItemInfoMatcher matcher) {
+    public void persistRemoveItemsByMatcher(Predicate<ItemInfo> matcher) {
         mLauncher.getModelWriter().deleteItemsFromDatabase(matcher);
         removeItemsByMatcher(matcher);
     }
diff --git a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
index 84b95ec..bf56ac0 100644
--- a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
+++ b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
@@ -25,6 +25,7 @@
 import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_Y;
 import static com.android.launcher3.LauncherAnimUtils.WORKSPACE_SCALE_PROPERTY_FACTORY;
 import static com.android.launcher3.LauncherState.FLAG_HAS_SYS_UI_SCRIM;
+import static com.android.launcher3.LauncherState.FLAG_HOTSEAT_INACCESSIBLE;
 import static com.android.launcher3.LauncherState.HINT_STATE;
 import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
 import static com.android.launcher3.LauncherState.NORMAL;
@@ -151,6 +152,12 @@
         propertySetter.setViewAlpha(mLauncher.getWorkspace().getPageIndicator(),
                 workspacePageIndicatorAlpha, fadeInterpolator);
 
+        // Update the accessibility flags for hotseat based on launcher state.
+        hotseat.setImportantForAccessibility(
+                state.hasFlag(FLAG_HOTSEAT_INACCESSIBLE)
+                        ? View.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS
+                        : View.IMPORTANT_FOR_ACCESSIBILITY_AUTO);
+
         Interpolator translationInterpolator =
                 config.getInterpolator(ANIM_WORKSPACE_TRANSLATE, ZOOM_OUT);
         propertySetter.setFloat(mWorkspace, VIEW_TRANSLATE_X,
diff --git a/src/com/android/launcher3/allapps/AllAppsTransitionController.java b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
index 637a418..3600bd2 100644
--- a/src/com/android/launcher3/allapps/AllAppsTransitionController.java
+++ b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
@@ -190,6 +190,7 @@
     public void setProgress(float progress) {
         mProgress = progress;
         getAppsViewProgressTranslationY().set(mAppsView, mProgress * mShiftRange);
+        mLauncher.onAllAppsTransition(1 - progress);
     }
 
     public float getProgress() {
@@ -254,8 +255,6 @@
         anim.setInterpolator(verticalProgressInterpolator);
         anim.addListener(getProgressAnimatorListener());
         builder.add(anim);
-        // Use ANIM_VERTICAL_PROGRESS's interpolator to determine state transition threshold.
-        builder.setInterpolator(verticalProgressInterpolator);
 
         setAlphas(toState, config, builder);
 
diff --git a/src/com/android/launcher3/allapps/AlphabeticalAppsList.java b/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
index 9f0c1cc..cdaf80a 100644
--- a/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
+++ b/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
@@ -21,17 +21,18 @@
 import com.android.launcher3.allapps.BaseAllAppsAdapter.AdapterItem;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.model.data.AppInfo;
-import com.android.launcher3.util.ItemInfoMatcher;
+import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.util.LabelComparator;
 import com.android.launcher3.views.ActivityContext;
 
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 import java.util.Locale;
-import java.util.Map;
 import java.util.Objects;
 import java.util.TreeMap;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 /**
  * The alphabetically sorted list of applications.
@@ -82,7 +83,7 @@
     private AppInfoComparator mAppNameComparator;
     private final int mNumAppsPerRowAllApps;
     private int mNumAppRowsInAdapter;
-    private ItemInfoMatcher mItemFilter;
+    private Predicate<ItemInfo> mItemFilter;
 
     public AlphabeticalAppsList(Context context, AllAppsStore appsStore,
             WorkAdapterProvider adapterProvider) {
@@ -94,7 +95,7 @@
         mAllAppsStore.addUpdateListener(this);
     }
 
-    public void updateItemFilter(ItemInfoMatcher itemFilter) {
+    public void updateItemFilter(Predicate<ItemInfo> itemFilter) {
         this.mItemFilter = itemFilter;
         onAppsUpdated();
     }
@@ -192,27 +193,6 @@
         return true;
     }
 
-    public boolean appendSearchResults(ArrayList<AdapterItem> results) {
-        if (hasFilter() && results != null && results.size() > 0) {
-            updateSearchAdapterItems(results, mSearchResults.size());
-            refreshRecyclerView();
-            return true;
-        }
-        return false;
-    }
-
-    void updateSearchAdapterItems(ArrayList<AdapterItem> list, int offset) {
-        for (int i = 0; i < list.size(); i++) {
-            AdapterItem adapterItem = list.get(i);
-            adapterItem.position = offset + i;
-            mAdapterItems.add(adapterItem);
-
-            if (adapterItem.isCountedForAccessibility()) {
-                mAccessibilityResultsCount++;
-            }
-        }
-    }
-
     /**
      * Updates internals when the set of apps are updated.
      */
@@ -221,13 +201,11 @@
         // Sort the list of apps
         mApps.clear();
 
-        for (AppInfo app : mAllAppsStore.getApps()) {
-            if (mItemFilter == null || mItemFilter.matches(app, null) || hasFilter()) {
-                mApps.add(app);
-            }
+        Stream<AppInfo> appSteam = Stream.of(mAllAppsStore.getApps());
+        if (!hasFilter() && mItemFilter != null) {
+            appSteam = appSteam.filter(mItemFilter);
         }
-
-        Collections.sort(mApps, mAppNameComparator);
+        appSteam = appSteam.sorted(mAppNameComparator);
 
         // As a special case for some languages (currently only Simplified Chinese), we may need to
         // coalesce sections
@@ -236,27 +214,16 @@
         if (localeRequiresSectionSorting) {
             // Compute the section headers. We use a TreeMap with the section name comparator to
             // ensure that the sections are ordered when we iterate over it later
-            TreeMap<String, ArrayList<AppInfo>> sectionMap = new TreeMap<>(new LabelComparator());
-            for (AppInfo info : mApps) {
-                // Add the section to the cache
-                String sectionName = info.sectionName;
-
-                // Add it to the mapping
-                ArrayList<AppInfo> sectionApps = sectionMap.get(sectionName);
-                if (sectionApps == null) {
-                    sectionApps = new ArrayList<>();
-                    sectionMap.put(sectionName, sectionApps);
-                }
-                sectionApps.add(info);
-            }
-
-            // Add each of the section apps to the list in order
-            mApps.clear();
-            for (Map.Entry<String, ArrayList<AppInfo>> entry : sectionMap.entrySet()) {
-                mApps.addAll(entry.getValue());
-            }
+            appSteam = appSteam.collect(Collectors.groupingBy(
+                    info -> info.sectionName,
+                    () -> new TreeMap<>(new LabelComparator()),
+                    Collectors.toCollection(ArrayList::new)))
+                    .values()
+                    .stream()
+                    .flatMap(ArrayList::stream);
         }
 
+        appSteam.forEachOrdered(mApps::add);
         // Recompose the set of adapter items from the current set of apps
         if (mSearchResults.isEmpty()) {
             updateAdapterItems();
@@ -282,7 +249,6 @@
         String lastSectionName = null;
         FastScrollSectionInfo lastFastScrollerSectionInfo = null;
         int position = 0;
-        int appIndex = 0;
 
         // Prepare to update the list of sections, filtered apps, etc.
         mAccessibilityResultsCount = 0;
@@ -319,7 +285,16 @@
                 mAdapterItems.add(appItem);
             }
         } else {
-            updateSearchAdapterItems(mSearchResults, 0);
+            int count = mSearchResults.size();
+            for (int i = 0; i < count; i++) {
+                AdapterItem adapterItem = mSearchResults.get(i);
+                adapterItem.position = i;
+                mAdapterItems.add(adapterItem);
+
+                if (adapterItem.isCountedForAccessibility()) {
+                    mAccessibilityResultsCount++;
+                }
+            }
             if (!FeatureFlags.ENABLE_DEVICE_SEARCH.get()) {
                 // Append the search market item
                 if (hasNoFilteredResults()) {
diff --git a/src/com/android/launcher3/allapps/BaseAllAppsContainerView.java b/src/com/android/launcher3/allapps/BaseAllAppsContainerView.java
index f913aa9..891fe8f 100644
--- a/src/com/android/launcher3/allapps/BaseAllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/BaseAllAppsContainerView.java
@@ -58,7 +58,7 @@
 import com.android.launcher3.allapps.search.SearchAdapterProvider;
 import com.android.launcher3.keyboard.FocusedItemDecorator;
 import com.android.launcher3.model.StringCache;
-import com.android.launcher3.model.data.AppInfo;
+import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.ActivityContext;
@@ -69,6 +69,8 @@
 
 import java.util.Arrays;
 import java.util.List;
+import java.util.function.Predicate;
+import java.util.stream.Stream;
 
 /**
  * Base all apps view container.
@@ -91,7 +93,7 @@
     /** Context of an activity or window that is inflating this container. */
     protected final T mActivityContext;
     protected final List<AdapterHolder> mAH;
-    protected final ItemInfoMatcher mPersonalMatcher = ItemInfoMatcher.ofUser(
+    protected final Predicate<ItemInfo> mPersonalMatcher = ItemInfoMatcher.ofUser(
             Process.myUserHandle());
     private final SearchAdapterProvider<?> mMainAdapterProvider;
     private final AllAppsStore mAllAppsStore = new AllAppsStore();
@@ -229,17 +231,10 @@
     }
 
     private void onAppsUpdated() {
-        boolean hasWorkApps = false;
-        for (AppInfo app : mAllAppsStore.getApps()) {
-            if (mWorkManager.getMatcher().matches(app, null)) {
-                hasWorkApps = true;
-                break;
-            }
-        }
-        mHasWorkApps = hasWorkApps;
+        mHasWorkApps = Stream.of(mAllAppsStore.getApps()).anyMatch(mWorkManager.getMatcher());
         if (!mAH.get(AdapterHolder.MAIN).mAppsList.hasFilter()) {
             rebindAdapters();
-            if (hasWorkApps) {
+            if (mHasWorkApps) {
                 mWorkManager.reset();
             }
         }
@@ -731,7 +726,7 @@
             mLayoutManager = adapter.getLayoutManager();
         }
 
-        void setup(@NonNull View rv, @Nullable ItemInfoMatcher matcher) {
+        void setup(@NonNull View rv, @Nullable Predicate<ItemInfo> matcher) {
             mAppsList.updateItemFilter(matcher);
             mRecyclerView = (AllAppsRecyclerView) rv;
             mRecyclerView.setEdgeEffectFactory(createEdgeEffectFactory());
diff --git a/src/com/android/launcher3/allapps/WorkProfileManager.java b/src/com/android/launcher3/allapps/WorkProfileManager.java
index 6203cea..c5b02dd 100644
--- a/src/com/android/launcher3/allapps/WorkProfileManager.java
+++ b/src/com/android/launcher3/allapps/WorkProfileManager.java
@@ -27,7 +27,6 @@
 import android.os.UserManager;
 import android.util.Log;
 import android.view.ViewGroup;
-import android.view.WindowInsets;
 
 import androidx.annotation.IntDef;
 import androidx.annotation.Nullable;
@@ -35,11 +34,12 @@
 
 import com.android.launcher3.R;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.util.ItemInfoMatcher;
+import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.workprofile.PersonalWorkSlidingTabStrip;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
+import java.util.function.Predicate;
 
 /**
  * Companion class for {@link BaseAllAppsContainerView} to manage work tab and personal tab
@@ -70,7 +70,7 @@
 
     private final BaseAllAppsContainerView<?> mAllApps;
     private final WorkAdapterProvider mAdapterProvider;
-    private final ItemInfoMatcher mMatcher;
+    private final Predicate<ItemInfo> mMatcher;
 
     private WorkModeSwitch mWorkModeSwitch;
 
@@ -176,7 +176,7 @@
         return mAdapterProvider;
     }
 
-    public ItemInfoMatcher getMatcher() {
+    public Predicate<ItemInfo> getMatcher() {
         return mMatcher;
     }
 
diff --git a/src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java b/src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java
index 893e547..bc2c318 100644
--- a/src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java
+++ b/src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java
@@ -177,14 +177,6 @@
     }
 
     @Override
-    public void onAppendSearchResult(String query, ArrayList<AdapterItem> items) {
-        if (items != null) {
-            mApps.appendSearchResults(items);
-            notifyResultChanged();
-        }
-    }
-
-    @Override
     public void clearSearchResult() {
         if (mApps.setSearchResults(null)) {
             notifyResultChanged();
diff --git a/src/com/android/launcher3/anim/Interpolators.java b/src/com/android/launcher3/anim/Interpolators.java
index 5a46ce1..4ff5d5e 100644
--- a/src/com/android/launcher3/anim/Interpolators.java
+++ b/src/com/android/launcher3/anim/Interpolators.java
@@ -47,13 +47,6 @@
     public static final Interpolator DEACCEL_2_5 = new DecelerateInterpolator(2.5f);
     public static final Interpolator DEACCEL_3 = new DecelerateInterpolator(3f);
 
-    /**
-     * The decelerating emphasized interpolator. Used for hero / emphasized movement of content that
-     * is appearing e.g. when coming from off screen
-     */
-    public static final Interpolator EMPHASIZED_DECELERATE = new PathInterpolator(
-            0.05f, 0.7f, 0.1f, 1f);
-
     public static final Interpolator ACCEL_DEACCEL = new AccelerateDecelerateInterpolator();
 
     public static final Interpolator FAST_OUT_SLOW_IN = new PathInterpolator(0.4f, 0f, 0.2f, 1f);
diff --git a/src/com/android/launcher3/dragndrop/DragController.java b/src/com/android/launcher3/dragndrop/DragController.java
index fdb2799..35cdfef 100644
--- a/src/com/android/launcher3/dragndrop/DragController.java
+++ b/src/com/android/launcher3/dragndrop/DragController.java
@@ -18,7 +18,6 @@
 
 import static com.android.launcher3.Utilities.ATLEAST_Q;
 
-import android.content.ComponentName;
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
@@ -36,12 +35,12 @@
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
 import com.android.launcher3.testing.TestProtocol;
-import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.TouchController;
 import com.android.launcher3.views.ActivityContext;
 
 import java.util.ArrayList;
 import java.util.Optional;
+import java.util.function.Predicate;
 
 /**
  * Class for initiating a drag within a view or across multiple views.
@@ -275,15 +274,12 @@
 
     protected abstract void exitDrag();
 
-    public void onAppsRemoved(ItemInfoMatcher matcher) {
+    public void onAppsRemoved(Predicate<ItemInfo> matcher) {
         // Cancel the current drag if we are removing an app that we are dragging
         if (mDragObject != null) {
             ItemInfo dragInfo = mDragObject.dragInfo;
-            if (dragInfo instanceof WorkspaceItemInfo) {
-                ComponentName cn = dragInfo.getTargetComponent();
-                if (cn != null && matcher.matches(dragInfo, cn)) {
-                    cancelDrag();
-                }
+            if (dragInfo instanceof WorkspaceItemInfo && matcher.test(dragInfo)) {
+                cancelDrag();
             }
         }
     }
diff --git a/src/com/android/launcher3/dragndrop/PinShortcutRequestActivityInfo.java b/src/com/android/launcher3/dragndrop/PinShortcutRequestActivityInfo.java
index 29e7c18..f9916d0 100644
--- a/src/com/android/launcher3/dragndrop/PinShortcutRequestActivityInfo.java
+++ b/src/com/android/launcher3/dragndrop/PinShortcutRequestActivityInfo.java
@@ -87,7 +87,8 @@
         // Total duration for the drop animation to complete.
         long duration = mContext.getResources().getInteger(R.integer.config_dropAnimMaxDuration) +
                 LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY +
-                LauncherState.SPRING_LOADED.getTransitionDuration(Launcher.getLauncher(mContext));
+                LauncherState.SPRING_LOADED.getTransitionDuration(Launcher.getLauncher(mContext),
+                        true /* isToState */);
         // Delay the actual accept() call until the drop animation is complete.
         return PinRequestHelper.createWorkspaceItemFromPinItemRequest(
                 mContext, mRequest, duration);
diff --git a/src/com/android/launcher3/model/AllAppsList.java b/src/com/android/launcher3/model/AllAppsList.java
index b8c9762..4875d83 100644
--- a/src/com/android/launcher3/model/AllAppsList.java
+++ b/src/com/android/launcher3/model/AllAppsList.java
@@ -36,9 +36,9 @@
 import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.model.BgDataModel.Callbacks;
 import com.android.launcher3.model.data.AppInfo;
+import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.pm.PackageInstallInfo;
 import com.android.launcher3.util.FlagOp;
-import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.PackageManagerHelper;
 import com.android.launcher3.util.SafeCloseable;
 
@@ -47,6 +47,7 @@
 import java.util.HashSet;
 import java.util.List;
 import java.util.function.Consumer;
+import java.util.function.Predicate;
 
 
 /**
@@ -257,11 +258,11 @@
     /**
      * Updates the disabled flags of apps matching {@param matcher} based on {@param op}.
      */
-    public void updateDisabledFlags(ItemInfoMatcher matcher, FlagOp op) {
+    public void updateDisabledFlags(Predicate<ItemInfo> matcher, FlagOp op) {
         final List<AppInfo> data = this.data;
         for (int i = data.size() - 1; i >= 0; i--) {
             AppInfo info = data.get(i);
-            if (matcher.matches(info, info.componentName)) {
+            if (matcher.test(info)) {
                 info.runtimeStatusFlags = op.apply(info.runtimeStatusFlags);
                 mDataChanged = true;
             }
diff --git a/src/com/android/launcher3/model/BaseModelUpdateTask.java b/src/com/android/launcher3/model/BaseModelUpdateTask.java
index a3a4717..832c1dd 100644
--- a/src/com/android/launcher3/model/BaseModelUpdateTask.java
+++ b/src/com/android/launcher3/model/BaseModelUpdateTask.java
@@ -27,7 +27,6 @@
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
 import com.android.launcher3.util.ComponentKey;
-import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.widget.model.WidgetsListBaseEntry;
 
 import java.util.ArrayList;
@@ -35,6 +34,7 @@
 import java.util.List;
 import java.util.Objects;
 import java.util.concurrent.Executor;
+import java.util.function.Predicate;
 import java.util.stream.Collectors;
 
 /**
@@ -128,7 +128,7 @@
         scheduleCallbackTask(c -> c.bindAllWidgets(widgets));
     }
 
-    public void deleteAndBindComponentsRemoved(final ItemInfoMatcher matcher) {
+    public void deleteAndBindComponentsRemoved(final Predicate<ItemInfo> matcher) {
         getModelWriter().deleteItemsFromDatabase(matcher);
 
         // Call the components-removed callback
diff --git a/src/com/android/launcher3/model/BgDataModel.java b/src/com/android/launcher3/model/BgDataModel.java
index 866d18a..d52537e 100644
--- a/src/com/android/launcher3/model/BgDataModel.java
+++ b/src/com/android/launcher3/model/BgDataModel.java
@@ -50,7 +50,6 @@
 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.RunnableList;
 import com.android.launcher3.widget.model.WidgetsListBaseEntry;
 
@@ -66,6 +65,7 @@
 import java.util.Map;
 import java.util.Set;
 import java.util.function.Consumer;
+import java.util.function.Predicate;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
@@ -495,7 +495,7 @@
         default void bindWorkspaceItemsChanged(List<WorkspaceItemInfo> updated) { }
         default void bindWidgetsRestored(ArrayList<LauncherAppWidgetInfo> widgets) { }
         default void bindRestoreItemsChange(HashSet<ItemInfo> updates) { }
-        default void bindWorkspaceComponentsRemoved(ItemInfoMatcher matcher) { }
+        default void bindWorkspaceComponentsRemoved(Predicate<ItemInfo> matcher) { }
         default void bindAllWidgets(List<WidgetsListBaseEntry> widgets) { }
 
         default void onInitialBindComplete(IntSet boundPages, RunnableList pendingTasks) {
diff --git a/src/com/android/launcher3/model/ModelWriter.java b/src/com/android/launcher3/model/ModelWriter.java
index 94e06d1..015abe9 100644
--- a/src/com/android/launcher3/model/ModelWriter.java
+++ b/src/com/android/launcher3/model/ModelWriter.java
@@ -53,6 +53,7 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
+import java.util.function.Predicate;
 import java.util.function.Supplier;
 import java.util.stream.Collectors;
 import java.util.stream.StreamSupport;
@@ -278,10 +279,9 @@
     /**
      * Removes all the items from the database matching {@param matcher}.
      */
-    public void deleteItemsFromDatabase(ItemInfoMatcher matcher) {
+    public void deleteItemsFromDatabase(Predicate<ItemInfo> matcher) {
         deleteItemsFromDatabase(StreamSupport.stream(mBgDataModel.itemsIdMap.spliterator(), false)
-                        .filter(matcher::matchesInfo)
-                        .collect(Collectors.toList()));
+                        .filter(matcher).collect(Collectors.toList()));
     }
 
     /**
diff --git a/src/com/android/launcher3/model/PackageUpdatedTask.java b/src/com/android/launcher3/model/PackageUpdatedTask.java
index d47edff..239dd45 100644
--- a/src/com/android/launcher3/model/PackageUpdatedTask.java
+++ b/src/com/android/launcher3/model/PackageUpdatedTask.java
@@ -57,6 +57,7 @@
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
+import java.util.function.Predicate;
 
 /**
  * Handles updates due to changes in package manager (app installed/updated/removed)
@@ -95,7 +96,7 @@
         final int N = packages.length;
         final FlagOp flagOp;
         final HashSet<String> packageSet = new HashSet<>(Arrays.asList(packages));
-        final ItemInfoMatcher matcher = mOp == OP_USER_AVAILABILITY_CHANGE
+        final Predicate<ItemInfo> matcher = mOp == OP_USER_AVAILABILITY_CHANGE
                 ? ItemInfoMatcher.ofUser(mUser) // We want to update all packages for this user
                 : ItemInfoMatcher.ofPackages(packageSet, mUser);
         final HashSet<ComponentName> removedComponents = new HashSet<>();
@@ -206,7 +207,7 @@
                     }
 
                     ComponentName cn = si.getTargetComponent();
-                    if (cn != null && matcher.matches(si, cn)) {
+                    if (cn != null && matcher.test(si)) {
                         String packageName = cn.getPackageName();
 
                         if (si.hasStatusFlag(WorkspaceItemInfo.FLAG_SUPPORTS_WEB_UI)) {
@@ -336,7 +337,7 @@
         }
 
         if (!removedPackages.isEmpty() || !removedComponents.isEmpty()) {
-            ItemInfoMatcher removeMatch = ItemInfoMatcher.ofPackages(removedPackages, mUser)
+            Predicate<ItemInfo> removeMatch = ItemInfoMatcher.ofPackages(removedPackages, mUser)
                     .or(ItemInfoMatcher.ofComponents(removedComponents, mUser))
                     .and(ItemInfoMatcher.ofItemIds(forceKeepShortcuts).negate());
             deleteAndBindComponentsRemoved(removeMatch);
diff --git a/src/com/android/launcher3/search/SearchCallback.java b/src/com/android/launcher3/search/SearchCallback.java
index 5796116..495a303 100644
--- a/src/com/android/launcher3/search/SearchCallback.java
+++ b/src/com/android/launcher3/search/SearchCallback.java
@@ -32,13 +32,6 @@
     void onSearchResult(String query, ArrayList<T> items);
 
     /**
-     * Called when the search from secondary source is complete.
-     *
-     * @param items list of search results
-     */
-    void onAppendSearchResult(String query, ArrayList<T> items);
-
-    /**
      * Called when the search results should be cleared.
      */
     void clearSearchResult();
diff --git a/src/com/android/launcher3/statemanager/BaseState.java b/src/com/android/launcher3/statemanager/BaseState.java
index 122573c..4a68dda 100644
--- a/src/com/android/launcher3/statemanager/BaseState.java
+++ b/src/com/android/launcher3/statemanager/BaseState.java
@@ -36,7 +36,7 @@
     /**
      * @return How long the animation to this state should take (or from this state to NORMAL).
      */
-    int getTransitionDuration(Context context);
+    int getTransitionDuration(Context context, boolean isToState);
 
     /**
      * Returns the state to go back to from this state
diff --git a/src/com/android/launcher3/statemanager/StateManager.java b/src/com/android/launcher3/statemanager/StateManager.java
index 1767939..2aa9dde 100644
--- a/src/com/android/launcher3/statemanager/StateManager.java
+++ b/src/com/android/launcher3/statemanager/StateManager.java
@@ -253,8 +253,8 @@
         // Since state mBaseState can be reached from multiple states, just assume that the
         // transition plays in reverse and use the same duration as previous state.
         mConfig.duration = state == mBaseState
-                ? fromState.getTransitionDuration(mActivity)
-                : state.getTransitionDuration(mActivity);
+                ? fromState.getTransitionDuration(mActivity, false /* isToState */)
+                : state.getTransitionDuration(mActivity, true /* isToState */);
         prepareForAtomicAnimation(fromState, state, mConfig);
         AnimatorSet animation = createAnimationToNewWorkspaceInternal(state).buildAnim();
         if (listener != null) {
diff --git a/src/com/android/launcher3/states/HintState.java b/src/com/android/launcher3/states/HintState.java
index 8b52016..4cfced8 100644
--- a/src/com/android/launcher3/states/HintState.java
+++ b/src/com/android/launcher3/states/HintState.java
@@ -43,7 +43,7 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
+    public int getTransitionDuration(Context context, boolean isToState) {
         return 80;
     }
 
diff --git a/src/com/android/launcher3/states/SpringLoadedState.java b/src/com/android/launcher3/states/SpringLoadedState.java
index e311bc8..15cdc20 100644
--- a/src/com/android/launcher3/states/SpringLoadedState.java
+++ b/src/com/android/launcher3/states/SpringLoadedState.java
@@ -39,7 +39,7 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
+    public int getTransitionDuration(Context context, boolean isToState) {
         return 150;
     }
 
diff --git a/src/com/android/launcher3/util/DisplayController.java b/src/com/android/launcher3/util/DisplayController.java
index 777da23..7c73be5 100644
--- a/src/com/android/launcher3/util/DisplayController.java
+++ b/src/com/android/launcher3/util/DisplayController.java
@@ -290,7 +290,7 @@
 
         // Configuration property
         public final float fontScale;
-        public final int densityDpi;
+        private final int densityDpi;
         public final NavigationMode navigationMode;
 
         private final PortraitSize mScreenSizeDp;
@@ -357,6 +357,10 @@
         public float smallestSizeDp(WindowBounds bounds) {
             return dpiFromPx(Math.min(bounds.bounds.width(), bounds.bounds.height()), densityDpi);
         }
+
+        public int getDensityDpi() {
+            return densityDpi;
+        }
     }
 
     /**
diff --git a/src/com/android/launcher3/util/ItemInfoMatcher.java b/src/com/android/launcher3/util/ItemInfoMatcher.java
index 7917410..b6af314 100644
--- a/src/com/android/launcher3/util/ItemInfoMatcher.java
+++ b/src/com/android/launcher3/util/ItemInfoMatcher.java
@@ -19,6 +19,8 @@
 import android.content.ComponentName;
 import android.os.UserHandle;
 
+import androidx.annotation.NonNull;
+
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.model.data.FolderInfo;
 import com.android.launcher3.model.data.ItemInfo;
@@ -27,90 +29,64 @@
 import java.util.Collection;
 import java.util.HashSet;
 import java.util.Set;
+import java.util.function.Predicate;
 
 /**
  * A utility class to check for {@link ItemInfo}
  */
-public interface ItemInfoMatcher {
+public abstract class ItemInfoMatcher {
 
     /**
      * Empty component used for match testing
      */
-    ComponentName EMPTY_COMPONENT = new ComponentName("", "");
+    private static final ComponentName EMPTY_COMPONENT = new ComponentName("", "");
 
-    boolean matches(ItemInfo info, ComponentName cn);
-
-    /**
-     * Returns true if the itemInfo matches this check
-     */
-    default boolean matchesInfo(ItemInfo info) {
-        if (info != null) {
-            ComponentName cn = info.getTargetComponent();
-            return matches(info, cn != null ? cn : EMPTY_COMPONENT);
-        } else {
-            return false;
-        }
+    public static Predicate<ItemInfo> ofUser(UserHandle user) {
+        return info -> info != null && info.user.equals(user);
     }
 
-    /**
-     * Returns a new matcher with returns true if either this or {@param matcher} returns true.
-     */
-    default ItemInfoMatcher or(ItemInfoMatcher matcher) {
-        return (info, cn) -> matches(info, cn) || matcher.matches(info, cn);
+    public static Predicate<ItemInfo> ofComponents(
+            HashSet<ComponentName> components, UserHandle user) {
+        return info -> info != null && info.user.equals(user)
+                && components.contains(getNonNullComponent(info));
     }
 
-    /**
-     * Returns a new matcher with returns true if both this and {@param matcher} returns true.
-     */
-    default ItemInfoMatcher and(ItemInfoMatcher matcher) {
-        return (info, cn) -> matches(info, cn) && matcher.matches(info, cn);
+    public static Predicate<ItemInfo> ofPackages(Set<String> packageNames, UserHandle user) {
+        return info -> info != null && info.user.equals(user)
+                && packageNames.contains(getNonNullComponent(info).getPackageName());
     }
 
-    /**
-     * Returns a new matcher with returns the opposite value of this.
-     */
-    default ItemInfoMatcher negate() {
-        return (info, cn) -> !matches(info, cn);
-    }
-
-    static ItemInfoMatcher ofUser(UserHandle user) {
-        return (info, cn) -> info.user.equals(user);
-    }
-
-    static ItemInfoMatcher ofComponents(HashSet<ComponentName> components, UserHandle user) {
-        return (info, cn) -> components.contains(cn) && info.user.equals(user);
-    }
-
-    static ItemInfoMatcher ofPackages(Set<String> packageNames, UserHandle user) {
-        return (info, cn) -> packageNames.contains(cn.getPackageName()) && info.user.equals(user);
-    }
-
-    static ItemInfoMatcher ofShortcutKeys(Set<ShortcutKey> keys) {
-        return (info, cn) -> info.itemType == Favorites.ITEM_TYPE_DEEP_SHORTCUT
+    public static Predicate<ItemInfo> ofShortcutKeys(Set<ShortcutKey> keys) {
+        return info -> info != null && info.itemType == Favorites.ITEM_TYPE_DEEP_SHORTCUT
                 && keys.contains(ShortcutKey.fromItemInfo(info));
     }
 
     /**
      * Returns a matcher for items within folders.
      */
-    static ItemInfoMatcher forFolderMatch(ItemInfoMatcher childOperator) {
-        return (info, cn) -> info instanceof FolderInfo && ((FolderInfo) info).contents.stream()
-                .anyMatch(childOperator::matchesInfo);
+    public static Predicate<ItemInfo> forFolderMatch(Predicate<ItemInfo> childOperator) {
+        return info -> info instanceof FolderInfo && ((FolderInfo) info).contents.stream()
+                .anyMatch(childOperator);
     }
 
     /**
      * Returns a matcher for items with provided ids
      */
-    static ItemInfoMatcher ofItemIds(IntSet ids) {
-        return (info, cn) -> ids.contains(info.id);
+    public static Predicate<ItemInfo> ofItemIds(IntSet ids) {
+        return info -> info != null && ids.contains(info.id);
     }
 
     /**
      * Returns a matcher for items with provided items
      */
-    static ItemInfoMatcher ofItems(Collection<? extends ItemInfo> items) {
+    public static Predicate<ItemInfo> ofItems(Collection<? extends ItemInfo> items) {
         IntSet ids = new IntSet();
         items.forEach(item -> ids.add(item.id));
         return ofItemIds(ids);
     }
+
+    private static ComponentName getNonNullComponent(@NonNull ItemInfo info) {
+        ComponentName cn = info.getTargetComponent();
+        return cn != null ? cn : EMPTY_COMPONENT;
+    }
 }
diff --git a/src/com/android/launcher3/util/window/WindowManagerProxy.java b/src/com/android/launcher3/util/window/WindowManagerProxy.java
index 61b7fa1..92f718e 100644
--- a/src/com/android/launcher3/util/window/WindowManagerProxy.java
+++ b/src/com/android/launcher3/util/window/WindowManagerProxy.java
@@ -22,6 +22,9 @@
 import static com.android.launcher3.ResourceUtils.NAVBAR_HEIGHT;
 import static com.android.launcher3.ResourceUtils.NAVBAR_HEIGHT_LANDSCAPE;
 import static com.android.launcher3.ResourceUtils.NAVBAR_LANDSCAPE_LEFT_RIGHT_SIZE;
+import static com.android.launcher3.ResourceUtils.STATUS_BAR_HEIGHT;
+import static com.android.launcher3.ResourceUtils.STATUS_BAR_HEIGHT_LANDSCAPE;
+import static com.android.launcher3.ResourceUtils.STATUS_BAR_HEIGHT_PORTRAIT;
 import static com.android.launcher3.Utilities.dpiFromPx;
 import static com.android.launcher3.util.MainThreadInitializedObject.forOverride;
 import static com.android.launcher3.util.RotationUtils.deltaRotation;
@@ -152,20 +155,26 @@
 
         boolean isTablet = config.smallestScreenWidthDp > MIN_TABLET_WIDTH;
         boolean isGesture = isGestureNav(context);
+        boolean isPortrait = config.screenHeightDp > config.screenWidthDp;
 
         int bottomNav = isTablet
                 ? 0
-                : (config.screenHeightDp > config.screenWidthDp
-                        ? getDimenByName(NAVBAR_HEIGHT, systemRes)
+                : (isPortrait
+                        ? getDimenByName(systemRes, NAVBAR_HEIGHT)
                         : (isGesture
-                                ? getDimenByName(NAVBAR_HEIGHT_LANDSCAPE, systemRes)
+                                ? getDimenByName(systemRes, NAVBAR_HEIGHT_LANDSCAPE)
                                 : 0));
         Insets newNavInsets = Insets.of(navInsets.left, navInsets.top, navInsets.right, bottomNav);
         insetsBuilder.setInsets(WindowInsets.Type.navigationBars(), newNavInsets);
         insetsBuilder.setInsetsIgnoringVisibility(WindowInsets.Type.navigationBars(), newNavInsets);
 
         Insets statusBarInsets = oldInsets.getInsets(WindowInsets.Type.statusBars());
-        int statusBarHeight = getDimenByName("status_bar_height", systemRes);
+
+
+        int statusBarHeight = getDimenByName(systemRes,
+                (isPortrait) ? STATUS_BAR_HEIGHT_PORTRAIT : STATUS_BAR_HEIGHT_LANDSCAPE,
+                STATUS_BAR_HEIGHT);
+
         Insets newStatusBarInsets = Insets.of(
                 statusBarInsets.left,
                 Math.max(statusBarInsets.top, statusBarHeight),
@@ -221,23 +230,26 @@
         boolean isTabletOrGesture = isTablet
                 || (Utilities.ATLEAST_R && isGestureNav(context));
 
-        int statusBarHeight = getDimenByName("status_bar_height", systemRes);
+        int statusBarHeightPortrait = getDimenByName(systemRes,
+                STATUS_BAR_HEIGHT_PORTRAIT, STATUS_BAR_HEIGHT);
+        int statusBarHeightLandscape = getDimenByName(systemRes,
+                STATUS_BAR_HEIGHT_LANDSCAPE, STATUS_BAR_HEIGHT);
 
         int navBarHeightPortrait, navBarHeightLandscape, navbarWidthLandscape;
 
         navBarHeightPortrait = isTablet
                 ? (mTaskbarDrawnInProcess
                         ? 0 : systemRes.getDimensionPixelSize(R.dimen.taskbar_size))
-                : getDimenByName(NAVBAR_HEIGHT, systemRes);
+                : getDimenByName(systemRes, NAVBAR_HEIGHT);
 
         navBarHeightLandscape = isTablet
                 ? (mTaskbarDrawnInProcess
                         ? 0 : systemRes.getDimensionPixelSize(R.dimen.taskbar_size))
                 : (isTabletOrGesture
-                        ? getDimenByName(NAVBAR_HEIGHT_LANDSCAPE, systemRes) : 0);
+                        ? getDimenByName(systemRes, NAVBAR_HEIGHT_LANDSCAPE) : 0);
         navbarWidthLandscape = isTabletOrGesture
                 ? 0
-                : getDimenByName(NAVBAR_LANDSCAPE_LEFT_RIGHT_SIZE, systemRes);
+                : getDimenByName(systemRes, NAVBAR_LANDSCAPE_LEFT_RIGHT_SIZE);
 
         WindowBounds[] result = new WindowBounds[4];
         Point tempSize = new Point();
@@ -247,13 +259,15 @@
             rotateSize(tempSize, rotationChange);
             Rect bounds = new Rect(0, 0, tempSize.x, tempSize.y);
 
-            int navBarHeight, navbarWidth;
+            int navBarHeight, navbarWidth, statusBarHeight;
             if (tempSize.y > tempSize.x) {
                 navBarHeight = navBarHeightPortrait;
                 navbarWidth = 0;
+                statusBarHeight = statusBarHeightPortrait;
             } else {
                 navBarHeight = navBarHeightLandscape;
                 navbarWidth = navbarWidthLandscape;
+                statusBarHeight = statusBarHeightLandscape;
             }
 
             Rect insets = new Rect(safeCutout);
@@ -276,10 +290,18 @@
     /**
      * Wrapper around the utility method for easier emulation
      */
-    protected int getDimenByName(String resName, Resources res) {
+    protected int getDimenByName(Resources res, String resName) {
         return ResourceUtils.getDimenByName(resName, res, 0);
     }
 
+    /**
+     * Wrapper around the utility method for easier emulation
+     */
+    protected int getDimenByName(Resources res, String resName, String fallback) {
+        int dimen = ResourceUtils.getDimenByName(resName, res, -1);
+        return dimen > -1 ? dimen : getDimenByName(res, fallback);
+    }
+
     protected boolean isGestureNav(Context context) {
         return ResourceUtils.getIntegerByName("config_navBarInteractionMode",
                 context.getResources(), INVALID_RESOURCE_HANDLE) == 2;
diff --git a/src/com/android/launcher3/views/AbstractSlideInView.java b/src/com/android/launcher3/views/AbstractSlideInView.java
index ed31e8d..47503b1 100644
--- a/src/com/android/launcher3/views/AbstractSlideInView.java
+++ b/src/com/android/launcher3/views/AbstractSlideInView.java
@@ -231,13 +231,17 @@
         if (mSwipeDetector.isIdleState()) {
             mOpenCloseAnimator
                     .setDuration(defaultDuration)
-                    .setInterpolator(Interpolators.ACCEL);
+                    .setInterpolator(getIdleInterpolator());
         } else {
             mOpenCloseAnimator.setInterpolator(mScrollInterpolator);
         }
         mOpenCloseAnimator.start();
     }
 
+    protected Interpolator getIdleInterpolator() {
+        return Interpolators.ACCEL;
+    }
+
     protected void onCloseComplete() {
         mIsOpen = false;
         getPopupContainer().removeView(this);
diff --git a/src/com/android/launcher3/widget/BaseWidgetSheet.java b/src/com/android/launcher3/widget/BaseWidgetSheet.java
index b12574f..c7bb612 100644
--- a/src/com/android/launcher3/widget/BaseWidgetSheet.java
+++ b/src/com/android/launcher3/widget/BaseWidgetSheet.java
@@ -44,6 +44,7 @@
 import com.android.launcher3.util.SystemUiController;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.AbstractSlideInView;
+import com.android.launcher3.views.ActivityContext;
 import com.android.launcher3.views.ArrowTipView;
 
 /**
@@ -306,4 +307,11 @@
         return mActivityContext.getSharedPrefs().getBoolean(KEY_WIDGETS_EDUCATION_TIP_SEEN, false)
                 || Utilities.IS_RUNNING_IN_TEST_HARNESS;
     }
+
+    @Override
+    protected void setTranslationShift(float translationShift) {
+        super.setTranslationShift(translationShift);
+        Launcher launcher = ActivityContext.lookupContext(getContext());
+        launcher.onWidgetsTransition(1 - translationShift);
+    }
 }
diff --git a/src/com/android/launcher3/widget/picker/search/WidgetsSearchBarController.java b/src/com/android/launcher3/widget/picker/search/WidgetsSearchBarController.java
index 2751a52..a15508a 100644
--- a/src/com/android/launcher3/widget/picker/search/WidgetsSearchBarController.java
+++ b/src/com/android/launcher3/widget/picker/search/WidgetsSearchBarController.java
@@ -95,11 +95,6 @@
     }
 
     @Override
-    public void onAppendSearchResult(String query, ArrayList<WidgetsListBaseEntry> items) {
-        // Not needed.
-    }
-
-    @Override
     public void clearSearchResult() {
         // Any existing search session will be cancelled by setting text to empty.
         mInput.setText("");
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/states/AllAppsState.java b/src_ui_overrides/com/android/launcher3/uioverrides/states/AllAppsState.java
index 8a435c9..2f8e680 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/states/AllAppsState.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/states/AllAppsState.java
@@ -39,8 +39,8 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
-        return 320;
+    public int getTransitionDuration(Context context, boolean isToState) {
+        return isToState ? 500 : 300;
     }
 
     @Override
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/states/OverviewState.java b/src_ui_overrides/com/android/launcher3/uioverrides/states/OverviewState.java
index d154317..7a228c4 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/states/OverviewState.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/states/OverviewState.java
@@ -34,7 +34,7 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
+    public int getTransitionDuration(Context context, boolean isToState) {
         return 250;
     }
 
diff --git a/tests/src/com/android/launcher3/DeviceProfileBaseTest.kt b/tests/src/com/android/launcher3/DeviceProfileBaseTest.kt
index f91f1c4..6d0fcb6 100644
--- a/tests/src/com/android/launcher3/DeviceProfileBaseTest.kt
+++ b/tests/src/com/android/launcher3/DeviceProfileBaseTest.kt
@@ -64,6 +64,7 @@
         windowBounds = WindowBounds(x, y, x, y - 100, 0)
 
         whenever(info.isTablet(any())).thenReturn(false)
+        whenever(info.getDensityDpi()).thenReturn(560)
 
         inv = newScalableInvariantDeviceProfile()
     }
@@ -77,6 +78,7 @@
         windowBounds = WindowBounds(x, y, x, y - 100, 0)
 
         whenever(info.isTablet(any())).thenReturn(true)
+        whenever(info.getDensityDpi()).thenReturn(320)
 
         inv = newScalableInvariantDeviceProfile()
     }
@@ -107,6 +109,7 @@
                 PointF(16f, 16f)
             ).toTypedArray()
             hotseatBorderSpaces = FloatArray(4) { 16f }
+            hotseatColumnSpan = IntArray(4) { 4 }
             iconSize = FloatArray(4) { 56f }
             allAppsIconSize = FloatArray(4) { 56f }
             iconTextSize = FloatArray(4) { 14f }
diff --git a/tests/src/com/android/launcher3/HotseatSizeTest.kt b/tests/src/com/android/launcher3/HotseatShownIconsTest.kt
similarity index 97%
rename from tests/src/com/android/launcher3/HotseatSizeTest.kt
rename to tests/src/com/android/launcher3/HotseatShownIconsTest.kt
index a44939f..593239d 100644
--- a/tests/src/com/android/launcher3/HotseatSizeTest.kt
+++ b/tests/src/com/android/launcher3/HotseatShownIconsTest.kt
@@ -23,15 +23,13 @@
 import com.google.common.truth.Truth.assertThat
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.mockito.ArgumentMatchers
-import org.mockito.Mockito.`when` as whenever
 
 /**
  * Test for [DeviceProfile]
  */
 @SmallTest
 @RunWith(AndroidJUnit4::class)
-class HotseatSizeTest : DeviceProfileBaseTest() {
+class HotseatShownIconsTest : DeviceProfileBaseTest() {
 
     @Test
     fun hotseat_size_is_normal_for_handhelds() {
diff --git a/tests/src/com/android/launcher3/InlineQsbTest.kt b/tests/src/com/android/launcher3/InlineQsbTest.kt
index e00dca8..905c1e1 100644
--- a/tests/src/com/android/launcher3/InlineQsbTest.kt
+++ b/tests/src/com/android/launcher3/InlineQsbTest.kt
@@ -29,17 +29,16 @@
 class InlineQsbTest : DeviceProfileBaseTest() {
 
     @Test
-    fun qsbWidth_is_match_parent_for_phones() {
+    fun qsb_is_not_inline_for_phones() {
         initializeVarsForPhone()
 
         val dp = newDP()
 
         assertThat(dp.isQsbInline).isFalse()
-        assertThat(dp.qsbWidth).isEqualTo(0)
     }
 
     @Test
-    fun qsbWidth_is_match_parent_for_tablet_portrait() {
+    fun qsb_is_inline_for_tablet_portrait() {
         initializeVarsForTablet()
         inv = newScalableInvariantDeviceProfile().apply {
             inlineQsb = booleanArrayOf(
@@ -62,11 +61,10 @@
         )
 
         assertThat(dp.isQsbInline).isFalse()
-        assertThat(dp.qsbWidth).isEqualTo(0)
     }
 
     @Test
-    fun qsbWidth_has_size_for_tablet_landscape() {
+    fun qsb_is_inline_for_tablet_landscape() {
         initializeVarsForTablet(isLandscape = true)
         inv = newScalableInvariantDeviceProfile().apply {
             inlineQsb = booleanArrayOf(
@@ -75,16 +73,17 @@
                 false,
                 false
             )
+            numColumns = 6
+            numRows = 5
+            numShownHotseatIcons = 6
         }
 
         val dp = newDP()
 
         if (dp.hotseatQsbHeight > 0) {
             assertThat(dp.isQsbInline).isTrue()
-            assertThat(dp.qsbWidth).isGreaterThan(0)
         } else { // Launcher3 doesn't have QSB height
             assertThat(dp.isQsbInline).isFalse()
-            assertThat(dp.qsbWidth).isEqualTo(0)
         }
     }
 
@@ -92,14 +91,13 @@
      * This test is to make sure that a tablet doesn't inline the QSB if the layout doesn't support
      */
     @Test
-    fun qsbWidth_is_match_parent_for_tablet_landscape_without_inline() {
+    fun qsb_is_not_inline_for_tablet_landscape_without_inline() {
         initializeVarsForTablet(isLandscape = true)
         useTwoPanels = true
 
         val dp = newDP()
 
         assertThat(dp.isQsbInline).isFalse()
-        assertThat(dp.qsbWidth).isEqualTo(0)
     }
 
 }
\ No newline at end of file
diff --git a/tests/src/com/android/launcher3/deviceemulator/TestWindowManagerProxy.java b/tests/src/com/android/launcher3/deviceemulator/TestWindowManagerProxy.java
index ca2f81e..cbea688 100644
--- a/tests/src/com/android/launcher3/deviceemulator/TestWindowManagerProxy.java
+++ b/tests/src/com/android/launcher3/deviceemulator/TestWindowManagerProxy.java
@@ -43,9 +43,14 @@
     }
 
     @Override
-    protected int getDimenByName(String resName, Resources res) {
+    protected int getDimenByName(Resources res, String resName) {
         Integer mock = mDevice.resourceOverrides.get(resName);
-        return mock != null ? mock : super.getDimenByName(resName, res);
+        return mock != null ? mock : super.getDimenByName(res, resName);
+    }
+
+    @Override
+    protected int getDimenByName(Resources res, String resName, String fallback) {
+        return getDimenByName(res, resName);
     }
 
     @Override
diff --git a/tests/src/com/android/launcher3/deviceemulator/models/DeviceEmulationData.java b/tests/src/com/android/launcher3/deviceemulator/models/DeviceEmulationData.java
index 3623513..8d275cc 100644
--- a/tests/src/com/android/launcher3/deviceemulator/models/DeviceEmulationData.java
+++ b/tests/src/com/android/launcher3/deviceemulator/models/DeviceEmulationData.java
@@ -135,7 +135,7 @@
             resourceOverrides.put(s, getDimenByName(s, context.getResources(), 0));
         }
         return new DeviceEmulationData(info.currentSize.x, info.currentSize.y,
-                info.densityDpi, info.cutout, code, grids, resourceOverrides);
+                info.getDensityDpi(), info.cutout, code, grids, resourceOverrides);
     }
 
     public static DeviceEmulationData getDevice(String deviceCode) throws Exception {