diff --git a/go/AndroidManifest.xml b/go/AndroidManifest.xml
index f84a82e..f36439d 100644
--- a/go/AndroidManifest.xml
+++ b/go/AndroidManifest.xml
@@ -46,6 +46,12 @@
             tools:node="replace" >
         </activity>
 
+        <service
+            android:name="com.android.launcher3.notification.NotificationListener"
+            android:label="@string/notification_dots_service_title"
+            android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE"
+            android:enabled="false"
+            tools:node="replace" />
     </application>
 
 </manifest>
diff --git a/go/src/com/android/launcher3/model/WidgetsModel.java b/go/src/com/android/launcher3/model/WidgetsModel.java
index 3b3dc01..89b3831 100644
--- a/go/src/com/android/launcher3/model/WidgetsModel.java
+++ b/go/src/com/android/launcher3/model/WidgetsModel.java
@@ -41,6 +41,7 @@
 
     // True is the widget support is disabled.
     public static final boolean GO_DISABLE_WIDGETS = true;
+    public static final boolean GO_DISABLE_NOTIFICATION_DOTS = true;
 
     private static final ArrayList<WidgetListRowEntry> EMPTY_WIDGET_LIST = new ArrayList<>();
 
diff --git a/quickstep/src/com/android/launcher3/model/WellbeingModel.java b/quickstep/src/com/android/launcher3/model/WellbeingModel.java
index cc7b712..810f4e3 100644
--- a/quickstep/src/com/android/launcher3/model/WellbeingModel.java
+++ b/quickstep/src/com/android/launcher3/model/WellbeingModel.java
@@ -43,9 +43,13 @@
 import android.util.Log;
 
 import androidx.annotation.MainThread;
+import androidx.annotation.NonNull;
 import androidx.annotation.WorkerThread;
 
 import com.android.launcher3.BaseDraggingActivity;
+import com.android.launcher3.InvariantDeviceProfile;
+import com.android.launcher3.LauncherProvider;
+import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.R;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.model.data.ItemInfo;
@@ -74,6 +78,9 @@
     private static final int MSG_PACKAGE_REMOVED = 2;
     private static final int MSG_FULL_REFRESH = 3;
 
+    private static final int UNKNOWN_MINIMAL_DEVICE_STATE = 0;
+    private static final int IN_MINIMAL_DEVICE = 2;
+
     // Welbeing contract
     private static final String PATH_ACTIONS = "actions";
     private static final String PATH_MINIMAL_DEVICE = "minimal_device";
@@ -84,6 +91,8 @@
     private static final String EXTRA_MAX_NUM_ACTIONS_SHOWN = "max_num_actions_shown";
     private static final String EXTRA_PACKAGES = "packages";
     private static final String EXTRA_SUCCESS = "success";
+    private static final String EXTRA_MINIMAL_DEVICE_STATE = "minimal_device_state";
+    private static final String DB_NAME_MINIMAL_DEVICE = "minimal.db";
 
     public static final MainThreadInitializedObject<WellbeingModel> INSTANCE =
             new MainThreadInitializedObject<>(WellbeingModel::new);
@@ -121,11 +130,12 @@
                     updateWellbeingData();
                 } else if (uri.getPath().contains(PATH_MINIMAL_DEVICE)) {
                     // Wellbeing reports that minimal device state or config is changed.
-                    updateLauncherModel();
+                    updateLauncherModel(context);
                 }
             }
         };
-        FeatureFlags.ENABLE_MINIMAL_DEVICE.addChangeListener(mContext, this::updateLauncherModel);
+        FeatureFlags.ENABLE_MINIMAL_DEVICE.addChangeListener(mContext, () ->
+                updateLauncherModel(context));
 
         if (!TextUtils.isEmpty(mWellbeingProviderPkg)) {
             context.registerReceiver(
@@ -170,7 +180,6 @@
             Log.e(TAG, "Failed to register content observer for " + actionsUri + ": " + e);
             if (mIsInTest) throw new RuntimeException(e);
         }
-
         updateWellbeingData();
     }
 
@@ -208,10 +217,34 @@
         mWorkerHandler.sendEmptyMessage(MSG_FULL_REFRESH);
     }
 
-    private void updateLauncherModel() {
-        if (!FeatureFlags.ENABLE_MINIMAL_DEVICE.get()) return;
+    private void updateLauncherModel(@NonNull final Context context) {
+        if (!FeatureFlags.ENABLE_MINIMAL_DEVICE.get()) {
+            reloadLauncherInNormalMode(context);
+            return;
+        }
+        runWithMinimalDeviceConfigs((bundle) -> {
+            if (bundle.getInt(EXTRA_MINIMAL_DEVICE_STATE, UNKNOWN_MINIMAL_DEVICE_STATE)
+                    == IN_MINIMAL_DEVICE) {
+                reloadLauncherInMinimalMode(context);
+            } else {
+                reloadLauncherInNormalMode(context);
+            }
+        });
+    }
 
-        // TODO: init Launcher in minimal device / normal mode
+    private void reloadLauncherInNormalMode(@NonNull final Context context) {
+        LauncherSettings.Settings.call(context.getContentResolver(),
+                LauncherSettings.Settings.METHOD_SWITCH_DATABASE,
+                InvariantDeviceProfile.INSTANCE.get(context).dbFile);
+    }
+
+    private void reloadLauncherInMinimalMode(@NonNull final Context context) {
+        final Bundle extras = new Bundle();
+        extras.putString(LauncherProvider.KEY_LAYOUT_PROVIDER_AUTHORITY,
+                mWellbeingProviderPkg + ".api");
+        LauncherSettings.Settings.call(context.getContentResolver(),
+                LauncherSettings.Settings.METHOD_SWITCH_DATABASE,
+                DB_NAME_MINIMAL_DEVICE, extras);
     }
 
     private Uri.Builder apiBuilder() {
@@ -225,6 +258,9 @@
      */
     @WorkerThread
     private void runWithMinimalDeviceConfigs(Consumer<Bundle> consumer) {
+        if (!FeatureFlags.ENABLE_MINIMAL_DEVICE.get()) {
+            return;
+        }
         if (DEBUG || mIsInTest) {
             Log.d(TAG, "runWithMinimalDeviceConfigs() called");
         }
diff --git a/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java b/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
index 1b8e244..aad7e17 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
@@ -18,6 +18,7 @@
 
 import static com.android.launcher3.anim.Interpolators.AGGRESSIVE_EASE_IN_OUT;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.graphics.OverviewScrim.SCRIM_MULTIPLIER;
 import static com.android.launcher3.graphics.Scrim.SCRIM_PROGRESS;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_FADE;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_MODAL;
@@ -70,6 +71,7 @@
         getContentAlphaProperty().set(mRecentsView, state.overviewUi ? 1f : 0);
         OverviewScrim scrim = mLauncher.getDragLayer().getOverviewScrim();
         SCRIM_PROGRESS.set(scrim, state.getOverviewScrimAlpha(mLauncher));
+        SCRIM_MULTIPLIER.set(scrim, 1f);
         getTaskModalnessProperty().set(mRecentsView, state.getOverviewModalness());
     }
 
@@ -108,6 +110,8 @@
         OverviewScrim scrim = mLauncher.getDragLayer().getOverviewScrim();
         setter.setFloat(scrim, SCRIM_PROGRESS, toState.getOverviewScrimAlpha(mLauncher),
                 config.getInterpolator(ANIM_OVERVIEW_SCRIM_FADE, LINEAR));
+        setter.setFloat(scrim, SCRIM_MULTIPLIER, 1f,
+                config.getInterpolator(ANIM_OVERVIEW_SCRIM_FADE, LINEAR));
 
         setter.setFloat(
                 mRecentsView, getTaskModalnessProperty(),
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java
index 57fd11a..da3c485 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java
@@ -66,8 +66,8 @@
         SingleAxisSwipeDetector.Listener {
 
     private static final Interpolator PULLBACK_INTERPOLATOR = DEACCEL_3;
-    // How much of the overview scrim we can remove during the transition.
-    private static final float OVERVIEW_TO_HOME_SCRIM_PROGRESS = 0.5f;
+    // The min amount of overview scrim we keep during the transition.
+    private static final float OVERVIEW_TO_HOME_SCRIM_MULTIPLIER = 0.5f;
 
     private final Launcher mLauncher;
     private final SingleAxisSwipeDetector mSwipeDetector;
@@ -163,11 +163,11 @@
             RecentsView recentsView = mLauncher.getOverviewPanel();
             AnimatorControllerWithResistance.createRecentsResistanceFromOverviewAnim(mLauncher,
                     builder);
-            float endScrimAlpha = Utilities.mapRange(OVERVIEW_TO_HOME_SCRIM_PROGRESS,
-                    mStartState.getOverviewScrimAlpha(mLauncher),
-                    mEndState.getOverviewScrimAlpha(mLauncher));
+
             builder.setFloat(mLauncher.getDragLayer().getOverviewScrim(),
-                    OverviewScrim.SCRIM_PROGRESS, endScrimAlpha, PULLBACK_INTERPOLATOR);
+                    OverviewScrim.SCRIM_MULTIPLIER, OVERVIEW_TO_HOME_SCRIM_MULTIPLIER,
+                    PULLBACK_INTERPOLATOR);
+
             if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
                 builder.addOnFrameCallback(recentsView::redrawLiveTile);
             }
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java
index 3586b4f..df6194d 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java
@@ -82,7 +82,15 @@
         mDetector = new SingleAxisSwipeDetector(activity, this, dir);
     }
 
-    private boolean canInterceptTouch() {
+    private boolean canInterceptTouch(MotionEvent ev) {
+        if ((ev.getEdgeFlags() & Utilities.EDGE_NAV_BAR) != 0) {
+            // Don't intercept swipes on the nav bar, as user might be trying to go home
+            // during a task dismiss animation.
+            if (mCurrentAnimation != null) {
+                mCurrentAnimation.getAnimationPlayer().end();
+            }
+            return false;
+        }
         if (mCurrentAnimation != null) {
             mCurrentAnimation.forceFinishIfCloseToEnd();
         }
@@ -118,7 +126,7 @@
             clearState();
         }
         if (ev.getAction() == MotionEvent.ACTION_DOWN) {
-            mNoIntercept = !canInterceptTouch();
+            mNoIntercept = !canInterceptTouch(ev);
             if (mNoIntercept) {
                 return false;
             }
diff --git a/src/com/android/launcher3/ExtendedEditText.java b/src/com/android/launcher3/ExtendedEditText.java
index d64967b..02c6162 100644
--- a/src/com/android/launcher3/ExtendedEditText.java
+++ b/src/com/android/launcher3/ExtendedEditText.java
@@ -24,6 +24,7 @@
 import android.view.inputmethod.InputMethodManager;
 import android.widget.EditText;
 
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.UiThreadHelper;
 
 
@@ -130,6 +131,10 @@
     public void reset() {
         if (!TextUtils.isEmpty(getText())) {
             setText("");
+        } else {
+            if (FeatureFlags.ENABLE_DEVICE_SEARCH.get()) {
+                return;
+            }
         }
         if (isFocused()) {
             View nextFocus = focusSearch(View.FOCUS_DOWN);
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index fdbbf4e..2973cf7 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -100,10 +100,12 @@
     public static final int SCHEMA_VERSION = 28;
 
     public static final String AUTHORITY = BuildConfig.APPLICATION_ID + ".settings";
+    public static final String KEY_LAYOUT_PROVIDER_AUTHORITY = "KEY_LAYOUT_PROVIDER_AUTHORITY";
 
     static final String EMPTY_DATABASE_CREATED = "EMPTY_DATABASE_CREATED";
 
     protected DatabaseHelper mOpenHelper;
+    protected String mProviderAuthority;
 
     private long mLastRestoreTimestamp = 0L;
 
@@ -367,7 +369,8 @@
             case LauncherSettings.Settings.METHOD_WAS_EMPTY_DB_CREATED : {
                 Bundle result = new Bundle();
                 result.putBoolean(LauncherSettings.Settings.EXTRA_VALUE,
-                        Utilities.getPrefs(getContext()).getBoolean(EMPTY_DATABASE_CREATED, false));
+                        Utilities.getPrefs(getContext()).getBoolean(
+                                mOpenHelper.getKey(EMPTY_DATABASE_CREATED), false));
                 return result;
             }
             case LauncherSettings.Settings.METHOD_DELETE_EMPTY_FOLDERS: {
@@ -437,6 +440,7 @@
                                             getContext(), true /* forMigration */)));
                     return result;
                 }
+                return null;
             }
             case LauncherSettings.Settings.METHOD_PREP_FOR_PREVIEW: {
                 if (MULTI_DB_GRID_MIRATION_ALGO.get()) {
@@ -450,6 +454,23 @@
                                     () -> mOpenHelper));
                     return result;
                 }
+                return null;
+            }
+            case LauncherSettings.Settings.METHOD_SWITCH_DATABASE: {
+                if (TextUtils.equals(arg, mOpenHelper.getDatabaseName())) return null;
+                final DatabaseHelper helper = mOpenHelper;
+                if (extras == null || !extras.containsKey(KEY_LAYOUT_PROVIDER_AUTHORITY)) {
+                    mProviderAuthority = null;
+                } else {
+                    mProviderAuthority = extras.getString(KEY_LAYOUT_PROVIDER_AUTHORITY);
+                }
+                mOpenHelper = DatabaseHelper.createDatabaseHelper(
+                        getContext(), arg, false /* forMigration */);
+                helper.close();
+                LauncherAppState app = LauncherAppState.getInstanceNoCreate();
+                if (app == null) return null;
+                app.getModel().forceReload();
+                return null;
             }
         }
         return null;
@@ -492,7 +513,8 @@
     }
 
     private void clearFlagEmptyDbCreated() {
-        Utilities.getPrefs(getContext()).edit().remove(EMPTY_DATABASE_CREATED).commit();
+        Utilities.getPrefs(getContext()).edit()
+                .remove(mOpenHelper.getKey(EMPTY_DATABASE_CREATED)).commit();
     }
 
     /**
@@ -505,7 +527,7 @@
     synchronized private void loadDefaultFavoritesIfNecessary() {
         SharedPreferences sp = Utilities.getPrefs(getContext());
 
-        if (sp.getBoolean(EMPTY_DATABASE_CREATED, false)) {
+        if (sp.getBoolean(mOpenHelper.getKey(EMPTY_DATABASE_CREATED), false)) {
             Log.d(TAG, "loading default workspace");
 
             AppWidgetHost widgetHost = mOpenHelper.newLauncherWidgetHost();
@@ -553,8 +575,13 @@
      */
     private AutoInstallsLayout createWorkspaceLoaderFromAppRestriction(AppWidgetHost widgetHost) {
         Context ctx = getContext();
-        String authority = Settings.Secure.getString(ctx.getContentResolver(),
-                "launcher3.layout.provider");
+        final String authority;
+        if (!TextUtils.isEmpty(mProviderAuthority)) {
+            authority = mProviderAuthority;
+        } else {
+            authority = Settings.Secure.getString(ctx.getContentResolver(),
+                    "launcher3.layout.provider");
+        }
         if (TextUtils.isEmpty(authority)) {
             return null;
         }
@@ -694,11 +721,25 @@
         }
 
         /**
+         * Re-composite given key in respect to database. If the current db is
+         * {@link LauncherFiles#LAUNCHER_DB}, return the key as-is. Otherwise append the db name to
+         * given key. e.g. consider key="EMPTY_DATABASE_CREATED", dbName="minimal.db", the returning
+         * string will be "EMPTY_DATABASE_CREATED@minimal.db".
+         */
+        String getKey(final String key) {
+            if (TextUtils.equals(getDatabaseName(), LauncherFiles.LAUNCHER_DB)) {
+                return key;
+            }
+            return key + "@" + getDatabaseName();
+        }
+
+        /**
          * Overriden in tests.
          */
         protected void onEmptyDbCreated() {
             // Set the flag for empty DB
-            Utilities.getPrefs(mContext).edit().putBoolean(EMPTY_DATABASE_CREATED, true).commit();
+            Utilities.getPrefs(mContext).edit().putBoolean(getKey(EMPTY_DATABASE_CREATED), true)
+                    .commit();
         }
 
         public long getSerialNumberForUser(UserHandle user) {
diff --git a/src/com/android/launcher3/LauncherSettings.java b/src/com/android/launcher3/LauncherSettings.java
index 5512654..58a418e 100644
--- a/src/com/android/launcher3/LauncherSettings.java
+++ b/src/com/android/launcher3/LauncherSettings.java
@@ -354,14 +354,20 @@
 
         public static final String METHOD_PREP_FOR_PREVIEW = "prep_for_preview";
 
+        public static final String METHOD_SWITCH_DATABASE = "switch_database";
+
         public static final String EXTRA_VALUE = "value";
 
         public static Bundle call(ContentResolver cr, String method) {
-            return call(cr, method, null);
+            return call(cr, method, null /* arg */);
         }
 
         public static Bundle call(ContentResolver cr, String method, String arg) {
-            return cr.call(CONTENT_URI, method, arg, null);
+            return call(cr, method, arg, null /* extras */);
+        }
+
+        public static Bundle call(ContentResolver cr, String method, String arg, Bundle extras) {
+            return cr.call(CONTENT_URI, method, arg, extras);
         }
     }
 }
diff --git a/src/com/android/launcher3/allapps/AllAppsContainerView.java b/src/com/android/launcher3/allapps/AllAppsContainerView.java
index 99fff4d..0684fe0 100644
--- a/src/com/android/launcher3/allapps/AllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsContainerView.java
@@ -44,6 +44,7 @@
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
+import androidx.core.os.BuildCompat;
 import androidx.recyclerview.widget.DefaultItemAnimator;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
@@ -110,7 +111,7 @@
 
     private final MultiValueAlpha mMultiValueAlpha;
 
-    Rect mInsets = new Rect();
+    private Rect mInsets = new Rect();
 
     public AllAppsContainerView(Context context) {
         this(context, null);
@@ -206,6 +207,17 @@
         mAH[AdapterHolder.WORK].applyPadding();
     }
 
+    private void hideInput() {
+        if (!BuildCompat.isAtLeastR() || !FeatureFlags.ENABLE_DEVICE_SEARCH.get()) return;
+
+        WindowInsets insets = getRootWindowInsets();
+        if (insets == null) return;
+
+        if (insets.isVisible(WindowInsets.Type.ime())) {
+            getWindowInsetsController().hide(WindowInsets.Type.ime());
+        }
+    }
+
     /**
      * Returns whether the view itself will handle the touch event or not.
      */
@@ -221,9 +233,14 @@
         }
         if (rv.getScrollbar().getThumbOffsetY() >= 0 &&
                 mLauncher.getDragLayer().isEventOverView(rv.getScrollbar(), ev)) {
+            hideInput();
             return false;
         }
-        return rv.shouldContainerScroll(ev, mLauncher.getDragLayer());
+        boolean shouldScroll = rv.shouldContainerScroll(ev, mLauncher.getDragLayer());
+        if (shouldScroll) {
+            hideInput();
+        }
+        return shouldScroll;
     }
 
     @Override
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index 37d2d40..d8fca1d 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -174,9 +174,6 @@
             "SEPARATE_RECENTS_ACTIVITY", false,
             "Uses a separate recents activity instead of using the integrated recents+Launcher UI");
 
-    public static final BooleanFlag USER_EVENT_DISPATCHER = new DeviceFlag(
-            "USER_EVENT_DISPATCHER", true, "User event dispatcher collects logs.");
-
     public static final BooleanFlag ENABLE_MINIMAL_DEVICE = new DeviceFlag(
             "ENABLE_MINIMAL_DEVICE", false,
             "Allow user to toggle minimal device mode in launcher.");
diff --git a/src/com/android/launcher3/graphics/OverviewScrim.java b/src/com/android/launcher3/graphics/OverviewScrim.java
index 94acbfd..c0c3e5e 100644
--- a/src/com/android/launcher3/graphics/OverviewScrim.java
+++ b/src/com/android/launcher3/graphics/OverviewScrim.java
@@ -22,6 +22,7 @@
 import static com.android.launcher3.LauncherState.OVERVIEW;
 
 import android.graphics.Rect;
+import android.util.FloatProperty;
 import android.view.View;
 import android.view.ViewGroup;
 
@@ -33,10 +34,25 @@
  */
 public class OverviewScrim extends Scrim {
 
+    public static final FloatProperty<OverviewScrim> SCRIM_MULTIPLIER =
+            new FloatProperty<OverviewScrim>("scrimMultiplier") {
+                @Override
+                public Float get(OverviewScrim scrim) {
+                    return scrim.mScrimMultiplier;
+                }
+
+                @Override
+                public void setValue(OverviewScrim scrim, float v) {
+                    scrim.setScrimMultiplier(v);
+                }
+            };
+
     private @NonNull View mStableScrimmedView;
     // Might be higher up if mStableScrimmedView is invisible.
     private @Nullable View mCurrentScrimmedView;
 
+    private float mScrimMultiplier = 1f;
+
     public OverviewScrim(View view) {
         super(view);
         mStableScrimmedView = mCurrentScrimmedView = mLauncher.getOverviewPanel();
@@ -68,4 +84,16 @@
     public @Nullable View getScrimmedView() {
         return mCurrentScrimmedView;
     }
+
+    private void setScrimMultiplier(float scrimMultiplier) {
+        if (Float.compare(mScrimMultiplier, scrimMultiplier) != 0) {
+            mScrimMultiplier = scrimMultiplier;
+            invalidate();
+        }
+    }
+
+    @Override
+    protected int getScrimAlpha() {
+        return Math.round(super.getScrimAlpha() * mScrimMultiplier);
+    }
 }
diff --git a/src/com/android/launcher3/graphics/Scrim.java b/src/com/android/launcher3/graphics/Scrim.java
index f90962d..a151cba 100644
--- a/src/com/android/launcher3/graphics/Scrim.java
+++ b/src/com/android/launcher3/graphics/Scrim.java
@@ -61,7 +61,11 @@
     }
 
     public void draw(Canvas canvas) {
-        canvas.drawColor(setColorAlphaBound(mScrimColor, mScrimAlpha));
+        canvas.drawColor(setColorAlphaBound(mScrimColor, getScrimAlpha()));
+    }
+
+    protected int getScrimAlpha() {
+        return mScrimAlpha;
     }
 
     private void setScrimProgress(float progress) {
diff --git a/src/com/android/launcher3/model/BgDataModel.java b/src/com/android/launcher3/model/BgDataModel.java
index 7e45021..cf32514 100644
--- a/src/com/android/launcher3/model/BgDataModel.java
+++ b/src/com/android/launcher3/model/BgDataModel.java
@@ -297,8 +297,7 @@
                         .filter(wi -> wi.itemType == Favorites.ITEM_TYPE_DEEP_SHORTCUT)
                         .map(ShortcutKey::fromItemInfo),
                     // Pending shortcuts
-                    ItemInstallQueue.INSTANCE.get(context).getPendingShortcuts()
-                        .stream().filter(si -> si.user.equals(user)))
+                    ItemInstallQueue.INSTANCE.get(context).getPendingShortcuts(user))
                 .collect(groupingBy(ShortcutKey::getPackageName,
                         mapping(ShortcutKey::getId, Collectors.toSet())));
 
diff --git a/src/com/android/launcher3/model/ItemInstallQueue.java b/src/com/android/launcher3/model/ItemInstallQueue.java
index 6238db3..5e48a0f 100644
--- a/src/com/android/launcher3/model/ItemInstallQueue.java
+++ b/src/com/android/launcher3/model/ItemInstallQueue.java
@@ -21,7 +21,6 @@
 import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_APPLICATION;
 import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET;
 import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT;
-import static com.android.launcher3.LauncherSettings.Favorites.PROFILE_ID;
 import static com.android.launcher3.model.data.AppInfo.makeLaunchIntent;
 import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
@@ -30,11 +29,9 @@
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
-import android.content.SharedPreferences;
 import android.content.pm.LauncherActivityInfo;
 import android.content.pm.LauncherApps;
 import android.content.pm.ShortcutInfo;
-import android.os.Process;
 import android.os.UserHandle;
 import android.util.Log;
 import android.util.Pair;
@@ -47,27 +44,19 @@
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherAppWidgetProviderInfo;
 import com.android.launcher3.LauncherSettings.Favorites;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.LauncherAppWidgetInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
-import com.android.launcher3.pm.UserCache;
 import com.android.launcher3.shortcuts.ShortcutKey;
 import com.android.launcher3.shortcuts.ShortcutRequest;
 import com.android.launcher3.util.MainThreadInitializedObject;
+import com.android.launcher3.util.PersistedItemArray;
 import com.android.launcher3.util.Preconditions;
 
-import org.json.JSONException;
-import org.json.JSONObject;
-import org.json.JSONStringer;
-
-import java.net.URISyntaxException;
-import java.util.ArrayList;
-import java.util.Collection;
 import java.util.HashSet;
-import java.util.Iterator;
 import java.util.List;
-import java.util.Set;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 /**
  * Class to maintain a queue of pending items to be added to the workspace.
@@ -79,7 +68,6 @@
     public static final int FLAG_DRAG_AND_DROP = 4;
 
     private static final String TAG = "InstallShortcutReceiver";
-    private static final boolean DBG = false;
 
     // The set of shortcuts that are pending install
     private static final String APPS_PENDING_INSTALL = "apps_to_install";
@@ -90,24 +78,34 @@
     public static MainThreadInitializedObject<ItemInstallQueue> INSTANCE =
             new MainThreadInitializedObject<>(ItemInstallQueue::new);
 
+    private final PersistedItemArray<PendingInstallShortcutInfo> mStorage =
+            new PersistedItemArray<>(APPS_PENDING_INSTALL);
     private final Context mContext;
 
     // Determines whether to defer installing shortcuts immediately until
     // processAllPendingInstalls() is called.
     private int mInstallQueueDisabledFlags = 0;
 
+    // Only accessed on worker thread
+    private List<PendingInstallShortcutInfo> mItems;
+
     private ItemInstallQueue(Context context) {
         mContext = context;
     }
 
     @WorkerThread
+    private void ensureQueueLoaded() {
+        Preconditions.assertWorkerThread();
+        if (mItems == null) {
+            mItems = mStorage.read(mContext, this::decode);
+        }
+    }
+
+    @WorkerThread
     private void addToQueue(PendingInstallShortcutInfo info) {
-        String encoded = info.encodeToString(mContext);
-        SharedPreferences prefs = Utilities.getPrefs(mContext);
-        Set<String> strings = prefs.getStringSet(APPS_PENDING_INSTALL, null);
-        strings = (strings != null) ? new HashSet<>(strings) : new HashSet<>(1);
-        strings.add(encoded);
-        prefs.edit().putStringSet(APPS_PENDING_INSTALL, strings).apply();
+        ensureQueueLoaded();
+        mItems.add(info);
+        mStorage.write(mContext, mItems);
     }
 
     @WorkerThread
@@ -117,28 +115,21 @@
             // Launcher not loaded
             return;
         }
-
-        ArrayList<Pair<ItemInfo, Object>> installQueue = new ArrayList<>();
-        SharedPreferences prefs = Utilities.getPrefs(mContext);
-        Set<String> strings = prefs.getStringSet(APPS_PENDING_INSTALL, null);
-        if (DBG) Log.d(TAG, "Getting and clearing APPS_PENDING_INSTALL: " + strings);
-        if (strings == null) {
+        ensureQueueLoaded();
+        if (mItems.isEmpty()) {
             return;
         }
 
-        for (String encoded : strings) {
-            PendingInstallShortcutInfo info = decode(encoded, mContext);
-            if (info == null) {
-                continue;
-            }
+        List<Pair<ItemInfo, Object>> installQueue = mItems.stream()
+                .map(info -> info.getItemInfo(mContext))
+                .collect(Collectors.toList());
 
-            // Generate a shortcut info to add into the model
-            installQueue.add(info.getItemInfo(mContext));
-        }
-        prefs.edit().remove(APPS_PENDING_INSTALL).apply();
+        // Add the items and clear queue
         if (!installQueue.isEmpty()) {
             launcher.getModel().addAndBindAddedWorkspaceItems(installQueue);
         }
+        mItems.clear();
+        mStorage.getFile(mContext).delete();
     }
 
     /**
@@ -149,33 +140,11 @@
         if (packageNames.isEmpty()) {
             return;
         }
-        Preconditions.assertWorkerThread();
-
-        SharedPreferences sp = Utilities.getPrefs(mContext);
-        Set<String> strings = sp.getStringSet(APPS_PENDING_INSTALL, null);
-        if (DBG) {
-            Log.d(TAG, "APPS_PENDING_INSTALL: " + strings
-                    + ", removing packages: " + packageNames);
+        ensureQueueLoaded();
+        if (mItems.removeIf(item ->
+                item.user.equals(user) && packageNames.contains(getIntentPackage(item.intent)))) {
+            mStorage.write(mContext, mItems);
         }
-        if (strings == null || ((Collection) strings).isEmpty()) {
-            return;
-        }
-        Set<String> newStrings = new HashSet<>(strings);
-        Iterator<String> newStringsIter = newStrings.iterator();
-        while (newStringsIter.hasNext()) {
-            String encoded = newStringsIter.next();
-            try {
-                Decoder decoder = new Decoder(encoded, mContext);
-                if (packageNames.contains(getIntentPackage(decoder.intent))
-                        && user.equals(decoder.user)) {
-                    newStringsIter.remove();
-                }
-            } catch (JSONException | URISyntaxException e) {
-                Log.d(TAG, "Exception reading shortcut to add: " + e);
-                newStringsIter.remove();
-            }
-        }
-        sp.edit().putStringSet(APPS_PENDING_INSTALL, newStrings).apply();
     }
 
     /**
@@ -200,28 +169,14 @@
     }
 
     /**
-     * Returns all pending shorts in the queue
+     * Returns a stream of all pending shortcuts in the queue
      */
     @WorkerThread
-    public HashSet<ShortcutKey> getPendingShortcuts() {
-        HashSet<ShortcutKey> result = new HashSet<>();
-
-        Set<String> strings = Utilities.getPrefs(mContext).getStringSet(APPS_PENDING_INSTALL, null);
-        if (strings == null || ((Collection) strings).isEmpty()) {
-            return result;
-        }
-
-        for (String encoded : strings) {
-            try {
-                Decoder decoder = new Decoder(encoded, mContext);
-                if (decoder.optInt(Favorites.ITEM_TYPE, -1) == ITEM_TYPE_DEEP_SHORTCUT) {
-                    result.add(ShortcutKey.fromIntent(decoder.intent, decoder.user));
-                }
-            } catch (JSONException | URISyntaxException e) {
-                Log.d(TAG, "Exception reading shortcut to add: " + e);
-            }
-        }
-        return result;
+    public Stream<ShortcutKey> getPendingShortcuts(UserHandle user) {
+        ensureQueueLoaded();
+        return mItems.stream()
+                .filter(item -> item.itemType == ITEM_TYPE_DEEP_SHORTCUT && user.equals(item.user))
+                .map(item -> ShortcutKey.fromIntent(item.intent, user));
     }
 
     private void queuePendingShortcutInfo(PendingInstallShortcutInfo info) {
@@ -293,19 +248,9 @@
             providerInfo = info;
         }
 
-        public String encodeToString(Context context) {
-            try {
-                return new JSONStringer()
-                        .object()
-                        .key(Favorites.ITEM_TYPE).value(itemType)
-                        .key(Favorites.INTENT).value(intent.toUri(0))
-                        .key(PROFILE_ID).value(
-                                UserCache.INSTANCE.get(context).getSerialNumberForUser(user))
-                        .endObject().toString();
-            } catch (JSONException e) {
-                Log.d(TAG, "Exception when adding shortcut: " + e);
-                return null;
-            }
+        @Override
+        public Intent getIntent() {
+            return intent;
         }
 
         public Pair<ItemInfo, Object> getItemInfo(Context context) {
@@ -365,55 +310,33 @@
                 ? intent.getPackage() : intent.getComponent().getPackageName();
     }
 
-    private static PendingInstallShortcutInfo decode(String encoded, Context context) {
-        try {
-            Decoder decoder = new Decoder(encoded, context);
-            switch (decoder.optInt(Favorites.ITEM_TYPE, -1)) {
-                case Favorites.ITEM_TYPE_APPLICATION:
-                    return new PendingInstallShortcutInfo(
-                            decoder.intent.getPackage(), decoder.user);
-                case Favorites.ITEM_TYPE_DEEP_SHORTCUT: {
-                    List<ShortcutInfo> si = ShortcutKey.fromIntent(decoder.intent, decoder.user)
-                            .buildRequest(context)
-                            .query(ShortcutRequest.ALL);
-                    if (si.isEmpty()) {
-                        return null;
-                    } else {
-                        return new PendingInstallShortcutInfo(si.get(0));
-                    }
+    private PendingInstallShortcutInfo decode(int itemType, UserHandle user, Intent intent) {
+        switch (itemType) {
+            case Favorites.ITEM_TYPE_APPLICATION:
+                return new PendingInstallShortcutInfo(intent.getPackage(), user);
+            case Favorites.ITEM_TYPE_DEEP_SHORTCUT: {
+                List<ShortcutInfo> si = ShortcutKey.fromIntent(intent, user)
+                        .buildRequest(mContext)
+                        .query(ShortcutRequest.ALL);
+                if (si.isEmpty()) {
+                    return null;
+                } else {
+                    return new PendingInstallShortcutInfo(si.get(0));
                 }
-                case Favorites.ITEM_TYPE_APPWIDGET: {
-                    int widgetId = decoder.intent.getIntExtra(EXTRA_APPWIDGET_ID, 0);
-                    AppWidgetProviderInfo info =
-                            AppWidgetManager.getInstance(context).getAppWidgetInfo(widgetId);
-                    if (info == null || !info.provider.equals(decoder.intent.getComponent())
-                            || !info.getProfile().equals(decoder.user)) {
-                        return null;
-                    }
-                    return new PendingInstallShortcutInfo(info, widgetId);
-                }
-                default:
-                    Log.e(TAG, "Unknown item type");
             }
-        } catch (JSONException | URISyntaxException e) {
-            Log.d(TAG, "Exception reading shortcut to add: " + e);
+            case Favorites.ITEM_TYPE_APPWIDGET: {
+                int widgetId = intent.getIntExtra(EXTRA_APPWIDGET_ID, 0);
+                AppWidgetProviderInfo info =
+                        AppWidgetManager.getInstance(mContext).getAppWidgetInfo(widgetId);
+                if (info == null || !info.provider.equals(intent.getComponent())
+                        || !info.getProfile().equals(user)) {
+                    return null;
+                }
+                return new PendingInstallShortcutInfo(info, widgetId);
+            }
+            default:
+                Log.e(TAG, "Unknown item type");
         }
         return null;
     }
-
-    private static class Decoder extends JSONObject {
-        public final Intent intent;
-        public final UserHandle user;
-
-        private Decoder(String encoded, Context context) throws JSONException, URISyntaxException {
-            super(encoded);
-            intent = Intent.parseUri(getString(Favorites.INTENT), 0);
-            user = has(PROFILE_ID)
-                    ? UserCache.INSTANCE.get(context).getUserForSerialNumber(getLong(PROFILE_ID))
-                    : Process.myUserHandle();
-            if (user == null || intent == null) {
-                throw new JSONException("Invalid data");
-            }
-        }
-    }
 }
diff --git a/src/com/android/launcher3/settings/SettingsActivity.java b/src/com/android/launcher3/settings/SettingsActivity.java
index ec3a467..922425f 100644
--- a/src/com/android/launcher3/settings/SettingsActivity.java
+++ b/src/com/android/launcher3/settings/SettingsActivity.java
@@ -44,6 +44,7 @@
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.model.WidgetsModel;
 import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
 import com.android.launcher3.util.SecureSettingsObserver;
 
@@ -171,6 +172,10 @@
         protected boolean initPreference(Preference preference) {
             switch (preference.getKey()) {
                 case NOTIFICATION_DOTS_PREFERENCE_KEY:
+                    if (WidgetsModel.GO_DISABLE_NOTIFICATION_DOTS) {
+                        return false;
+                    }
+
                     // Listen to system notification dot settings while this UI is active.
                     mNotificationDotsObserver = newNotificationSettingsObserver(
                             getActivity(), (NotificationDotsPreference) preference);
diff --git a/src/com/android/launcher3/util/DisplayController.java b/src/com/android/launcher3/util/DisplayController.java
index e5c8441..355c949 100644
--- a/src/com/android/launcher3/util/DisplayController.java
+++ b/src/com/android/launcher3/util/DisplayController.java
@@ -50,7 +50,7 @@
     private final ArrayList<DisplayListChangeListener> mListListeners = new ArrayList<>();
 
     private DisplayController(Context context) {
-        mDefaultDisplay = new DisplayHolder(context, DEFAULT_DISPLAY);
+        mDefaultDisplay = DisplayHolder.create(context, DEFAULT_DISPLAY);
 
         DisplayManager dm = context.getSystemService(DisplayManager.class);
         dm.registerDisplayListener(this, UI_HELPER_EXECUTOR.getHandler());
@@ -58,7 +58,11 @@
 
     @Override
     public final void onDisplayAdded(int displayId) {
-        DisplayHolder holder = new DisplayHolder(mDefaultDisplay.mDisplayContext, displayId);
+        DisplayHolder holder = DisplayHolder.create(mDefaultDisplay.mDisplayContext, displayId);
+        if (holder == null) {
+            // Display is already removed by the time we dot this.
+            return;
+        }
         synchronized (mOtherDisplays) {
             mOtherDisplays.put(displayId, holder);
         }
@@ -153,12 +157,8 @@
         private final ArrayList<DisplayInfoChangeListener> mListeners = new ArrayList<>();
         private DisplayController.Info mInfo;
 
-        public DisplayHolder(Context context, int id) {
-            DisplayManager dm = context.getSystemService(DisplayManager.class);
-            // Use application context to create display context so that it can have its own
-            // Resources.
-            mDisplayContext = context.getApplicationContext()
-                    .createDisplayContext(dm.getDisplay(id));
+        private DisplayHolder(Context displayContext) {
+            mDisplayContext = displayContext;
             // Note that the Display object must be obtained from DisplayManager which is
             // associated to the display context, so the Display is isolated from Activity and
             // Application to provide the actual state of device that excludes the additional
@@ -207,6 +207,17 @@
             }
         }
 
+        private static DisplayHolder create(Context context, int id) {
+            DisplayManager dm = context.getSystemService(DisplayManager.class);
+            Display display = dm.getDisplay(id);
+            if (display == null) {
+                return null;
+            }
+            // Use application context to create display context so that it can have its own
+            // Resources.
+            Context displayContext = context.getApplicationContext().createDisplayContext(display);
+            return new DisplayHolder(displayContext);
+        }
     }
 
     public static class Info {
diff --git a/src/com/android/launcher3/util/PersistedItemArray.java b/src/com/android/launcher3/util/PersistedItemArray.java
index ae20638..7ff2abb 100644
--- a/src/com/android/launcher3/util/PersistedItemArray.java
+++ b/src/com/android/launcher3/util/PersistedItemArray.java
@@ -68,8 +68,7 @@
      */
     @WorkerThread
     public void write(Context context, List<T> items) {
-        AtomicFile file = new AtomicFile(context.getFileStreamPath(mFileName));
-
+        AtomicFile file = getFile(context);
         FileOutputStream fos;
         try {
             fos = file.startWrite();
@@ -124,9 +123,7 @@
     @WorkerThread
     public List<T> read(Context context, ItemFactory<T> factory, LongFunction<UserHandle> userFn) {
         List<T> result = new ArrayList<>();
-        AtomicFile file = new AtomicFile(context.getFileStreamPath(mFileName));
-
-        try (FileInputStream fis = file.openRead()) {
+        try (FileInputStream fis = getFile(context).openRead()) {
             XmlPullParser parser = Xml.newPullParser();
             parser.setInput(new InputStreamReader(fis, StandardCharsets.UTF_8));
 
@@ -167,6 +164,13 @@
     }
 
     /**
+     * Returns the underlying file used for persisting data
+     */
+    public AtomicFile getFile(Context context) {
+        return new AtomicFile(context.getFileStreamPath(mFileName));
+    }
+
+    /**
      * Interface to create an ItemInfo during parsing
      */
     public interface ItemFactory<T extends ItemInfo> {
diff --git a/src_shortcuts_overrides/com/android/launcher3/model/WidgetsModel.java b/src_shortcuts_overrides/com/android/launcher3/model/WidgetsModel.java
index 9d87788..a64df62 100644
--- a/src_shortcuts_overrides/com/android/launcher3/model/WidgetsModel.java
+++ b/src_shortcuts_overrides/com/android/launcher3/model/WidgetsModel.java
@@ -51,6 +51,7 @@
 
     // True is the widget support is disabled.
     public static final boolean GO_DISABLE_WIDGETS = false;
+    public static final boolean GO_DISABLE_NOTIFICATION_DOTS = false;
 
     private static final String TAG = "WidgetsModel";
     private static final boolean DEBUG = false;