diff --git a/quickstep/AndroidManifest.xml b/quickstep/AndroidManifest.xml
index 0f92274..25b39ed 100644
--- a/quickstep/AndroidManifest.xml
+++ b/quickstep/AndroidManifest.xml
@@ -28,6 +28,7 @@
     <uses-permission android:name="android.permission.QUERY_ALL_PACKAGES"/>
     <uses-permission android:name="android.permission.START_TASKS_FROM_RECENTS"/>
     <uses-permission android:name="android.permission.REMOVE_TASKS"/>
+    <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS"/>
     <uses-permission android:name="android.permission.MANAGE_ACTIVITY_TASKS"/>
     <uses-permission android:name="android.permission.STATUS_BAR"/>
     <uses-permission android:name="android.permission.STOP_APP_SWITCHES"/>
diff --git a/quickstep/res/layout/overview_actions_container.xml b/quickstep/res/layout/overview_actions_container.xml
index dd8afc2..1c7b509 100644
--- a/quickstep/res/layout/overview_actions_container.xml
+++ b/quickstep/res/layout/overview_actions_container.xml
@@ -51,7 +51,6 @@
             style="@style/OverviewActionButton"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:drawableStart="@drawable/ic_split_screen"
             android:text="@string/action_split"
             android:theme="@style/ThemeControlHighlightWorkspaceColor"
             android:visibility="gone" />
diff --git a/quickstep/res/values/config.xml b/quickstep/res/values/config.xml
index 31c0f5f..3a4bb10 100644
--- a/quickstep/res/values/config.xml
+++ b/quickstep/res/values/config.xml
@@ -39,4 +39,8 @@
     <string name="wellbeing_provider_pkg" translatable="false"/>
 
     <integer name="max_depth_blur_radius">23</integer>
+
+    <!-- Accessibility actions -->
+    <item type="id" name="action_move_to_top_or_left" />
+    <item type="id" name="action_move_to_bottom_or_right" />
 </resources>
diff --git a/quickstep/res/values/strings.xml b/quickstep/res/values/strings.xml
index 151b8e4..70a4a7d 100644
--- a/quickstep/res/values/strings.xml
+++ b/quickstep/res/values/strings.xml
@@ -233,4 +233,9 @@
     <string name="taskbar_edu_close">Close</string>
     <!-- Text on button to finish a tutorial [CHAR_LIMIT=16] -->
     <string name="taskbar_edu_done">Done</string>
+
+    <!-- Label for moving drop target to the top or left side of the screen, depending on orientation (from the taskbar only). -->
+    <string name="move_drop_target_top_or_left">Move to top&#47;left</string>
+    <!-- Label for moving drop target to the bottom or right side of the screen, depending on orientation (from the taskbar only). -->
+    <string name="move_drop_target_bottom_or_right">Move to bottom&#47;right</string>
 </resources>
diff --git a/quickstep/src/com/android/launcher3/QuickstepAccessibilityDelegate.java b/quickstep/src/com/android/launcher3/QuickstepAccessibilityDelegate.java
index 96559cb..962fd91 100644
--- a/quickstep/src/com/android/launcher3/QuickstepAccessibilityDelegate.java
+++ b/quickstep/src/com/android/launcher3/QuickstepAccessibilityDelegate.java
@@ -44,7 +44,7 @@
 
     @Override
     protected boolean performAction(View host, ItemInfo item, int action, boolean fromKeyboard) {
-        QuickstepLauncher launcher = (QuickstepLauncher) mLauncher;
+        QuickstepLauncher launcher = (QuickstepLauncher) mContext;
         if (action == PIN_PREDICTION) {
             if (launcher.getHotseatPredictionController() == null) {
                 return false;
diff --git a/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java b/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
index e82c900..6ab49f8 100644
--- a/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
+++ b/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
@@ -161,8 +161,7 @@
             }
             InstanceId instanceId = new InstanceIdSequence().newInstanceId();
             for (ItemInfo info : itemsIdMap) {
-                FolderInfo parent = info.container > 0
-                        ? (FolderInfo) itemsIdMap.get(info.container) : null;
+                FolderInfo parent = getContainer(info, itemsIdMap);
                 StatsLogCompatManager.writeSnapshot(info.buildProto(parent), instanceId);
             }
             additionalSnapshotEvents(instanceId);
@@ -199,8 +198,7 @@
                         }
 
                         for (ItemInfo info : itemsIdMap) {
-                            FolderInfo parent = info.container > 0
-                                    ? (FolderInfo) itemsIdMap.get(info.container) : null;
+                            FolderInfo parent = getContainer(info, itemsIdMap);
                             LauncherAtom.ItemInfo itemInfo = info.buildProto(parent);
                             Log.d(TAG, itemInfo.toString());
                             StatsEvent statsEvent = StatsLogCompatManager.buildStatsEvent(itemInfo,
@@ -222,6 +220,22 @@
         }
     }
 
+    private static FolderInfo getContainer(ItemInfo info, IntSparseArrayMap<ItemInfo> itemsIdMap) {
+        if (info.container > 0) {
+            ItemInfo containerInfo = itemsIdMap.get(info.container);
+
+            if (!(containerInfo instanceof FolderInfo)) {
+                Log.e(TAG, String.format(
+                        "Item info: %s found with invalid container: %s",
+                        info,
+                        containerInfo));
+            }
+            // Allow crash to help debug b/173838775
+            return (FolderInfo) containerInfo;
+        }
+        return null;
+    }
+
     @Override
     public void validateData() {
         super.validateData();
diff --git a/quickstep/src/com/android/launcher3/taskbar/FallbackTaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/FallbackTaskbarUIController.java
index 90c035f..f1e6747 100644
--- a/quickstep/src/com/android/launcher3/taskbar/FallbackTaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/FallbackTaskbarUIController.java
@@ -60,6 +60,7 @@
 
     @Override
     protected void onDestroy() {
+        super.onDestroy();
         mRecentsActivity.setTaskbarUIController(null);
         mRecentsActivity.getStateManager().removeStateListener(mStateListener);
     }
diff --git a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
index 7d23439..2622700 100644
--- a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
@@ -99,6 +99,7 @@
 
     @Override
     protected void onDestroy() {
+        super.onDestroy();
         onLauncherResumedOrPaused(false);
         mTaskbarLauncherStateController.onDestroy();
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
index f6e0426..ce1e8b6b 100644
--- a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
@@ -31,12 +31,14 @@
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_NOTIFICATION_PANEL_EXPANDED;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_OVERVIEW_DISABLED;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_QUICK_SETTINGS_EXPANDED;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_SCREEN_PINNING;
 
 import android.animation.ArgbEvaluator;
 import android.animation.ObjectAnimator;
 import android.annotation.DrawableRes;
 import android.annotation.IdRes;
 import android.annotation.LayoutRes;
+import android.content.pm.ActivityInfo.Config;
 import android.content.res.ColorStateList;
 import android.graphics.Rect;
 import android.graphics.Region;
@@ -85,6 +87,7 @@
     private static final int FLAG_DISABLE_RECENTS = 1 << 8;
     private static final int FLAG_DISABLE_BACK = 1 << 9;
     private static final int FLAG_NOTIFICATION_SHADE_EXPANDED = 1 << 10;
+    private static final int FLAG_SCREEN_PINNING_ACTIVE = 1 << 10;
 
     private static final int MASK_IME_SWITCHER_VISIBLE = FLAG_SWITCHER_SUPPORTED | FLAG_IME_VISIBLE;
 
@@ -151,7 +154,9 @@
         mPropertyHolders.add(new StatePropertyHolder(
                 mControllers.taskbarViewController.getTaskbarIconAlpha()
                         .getProperty(ALPHA_INDEX_KEYGUARD),
-                flags -> (flags & FLAG_KEYGUARD_VISIBLE) == 0, MultiValueAlpha.VALUE, 1, 0));
+                flags -> (flags & FLAG_KEYGUARD_VISIBLE) == 0
+                        && (flags & FLAG_SCREEN_PINNING_ACTIVE) == 0,
+                MultiValueAlpha.VALUE, 1, 0));
 
         mPropertyHolders.add(new StatePropertyHolder(mControllers.taskbarDragLayerController
                 .getKeyguardBgTaskbar(),
@@ -285,6 +290,7 @@
         int shadeExpandedFlags = SYSUI_STATE_NOTIFICATION_PANEL_EXPANDED
                 | SYSUI_STATE_QUICK_SETTINGS_EXPANDED;
         boolean isNotificationShadeExpanded = (sysUiStateFlags & shadeExpandedFlags) != 0;
+        boolean isScreenPinningActive = (sysUiStateFlags & SYSUI_STATE_SCREEN_PINNING) != 0;
 
         // TODO(b/202218289) we're getting IME as not visible on lockscreen from system
         updateStateForFlag(FLAG_IME_VISIBLE, isImeVisible);
@@ -294,6 +300,7 @@
         updateStateForFlag(FLAG_DISABLE_RECENTS, isRecentsDisabled);
         updateStateForFlag(FLAG_DISABLE_BACK, isBackDisabled);
         updateStateForFlag(FLAG_NOTIFICATION_SHADE_EXPANDED, isNotificationShadeExpanded);
+        updateStateForFlag(FLAG_SCREEN_PINNING_ACTIVE, isScreenPinningActive);
 
         if (mA11yButton != null) {
             // Only used in 3 button
@@ -445,6 +452,12 @@
         return mFloatingRotationButtonBounds.contains((int) ev.getX(), (int) ev.getY());
     }
 
+    public void onConfigurationChanged(@Config int configChanges) {
+        if (mFloatingRotationButton != null) {
+            mFloatingRotationButton.onConfigurationChanged(configChanges);
+        }
+    }
+
     public void onDestroy() {
         mPropertyHolders.clear();
         mControllers.rotationButtonController.unregisterListeners();
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index bc68173..883515e 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -30,6 +30,7 @@
 import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.ActivityInfo.Config;
 import android.content.pm.LauncherApps;
 import android.graphics.Insets;
 import android.graphics.PixelFormat;
@@ -52,6 +53,7 @@
 import androidx.annotation.Nullable;
 
 import com.android.launcher3.AbstractFloatingView;
+import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.R;
@@ -112,6 +114,8 @@
     // The flag to know if the window is excluded from magnification region computation.
     private boolean mIsExcludeFromMagnificationRegion = false;
 
+    private final TaskbarShortcutMenuAccessibilityDelegate mAccessibilityDelegate;
+
     public TaskbarActivityContext(Context windowContext, DeviceProfile dp,
             TaskbarNavButtonController buttonController, ScopedUnfoldTransitionProgressProvider
             unfoldTransitionProgressProvider) {
@@ -147,6 +151,8 @@
         mLeftCorner = display.getRoundedCorner(RoundedCorner.POSITION_BOTTOM_LEFT);
         mRightCorner = display.getRoundedCorner(RoundedCorner.POSITION_BOTTOM_RIGHT);
 
+        mAccessibilityDelegate = new TaskbarShortcutMenuAccessibilityDelegate(this);
+
         // Construct controllers.
         mControllers = new TaskbarControllers(this,
                 new TaskbarDragController(this),
@@ -208,6 +214,10 @@
         mWindowManager.addView(mDragLayer, mWindowLayoutParams);
     }
 
+    public void onConfigurationChanged(@Config int configChanges) {
+        mControllers.onConfigurationChanged(configChanges);
+    }
+
     public boolean isThreeButtonNav() {
         return mNavMode == Mode.THREE_BUTTONS;
     }
@@ -328,6 +338,11 @@
         return mControllers.taskbarPopupController.getPopupDataProvider();
     }
 
+    @Override
+    public View.AccessibilityDelegate getAccessibilityDelegate() {
+        return mAccessibilityDelegate;
+    }
+
     /**
      * Sets a new data-source for this taskbar instance
      */
@@ -370,6 +385,7 @@
         mControllers.taskbarStashController.updateStateForSysuiFlags(systemUiStateFlags, fromInit);
         mControllers.taskbarScrimViewController.updateStateForSysuiFlags(systemUiStateFlags,
                 fromInit);
+        mControllers.navButtonController.updateSysuiFlags(systemUiStateFlags);
     }
 
     /**
@@ -558,4 +574,9 @@
         }
         mWindowManager.updateViewLayout(mDragLayer, mWindowLayoutParams);
     }
+
+    public void showPopupMenuForIcon(BubbleTextView btv) {
+        setTaskbarWindowFullscreen(true);
+        btv.post(() -> mControllers.taskbarPopupController.showForIcon(btv));
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
index a7c5d4d..488c822 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
@@ -15,10 +15,15 @@
  */
 package com.android.launcher3.taskbar;
 
+import android.content.pm.ActivityInfo.Config;
+
 import androidx.annotation.NonNull;
 
 import com.android.systemui.shared.rotation.RotationButtonController;
 
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * Hosts various taskbar controllers to facilitate passing between one another.
  */
@@ -43,6 +48,9 @@
     /** Do not store this controller, as it may change at runtime. */
     @NonNull public TaskbarUIController uiController = TaskbarUIController.DEFAULT;
 
+    private boolean mAreAllControllersInitialized;
+    private final List<Runnable> mPostInitCallbacks = new ArrayList<>();
+
     public TaskbarControllers(TaskbarActivityContext taskbarActivityContext,
             TaskbarDragController taskbarDragController,
             TaskbarNavButtonController navButtonController,
@@ -81,6 +89,8 @@
      * in constructors for now, as some controllers may still be waiting for init().
      */
     public void init(TaskbarSharedState sharedState) {
+        mAreAllControllersInitialized = false;
+
         taskbarDragController.init(this);
         navbarButtonsViewController.init(this);
         rotationButtonController.init();
@@ -93,6 +103,16 @@
         taskbarStashController.init(this, sharedState);
         taskbarEduController.init(this);
         taskbarPopupController.init(this);
+
+        mAreAllControllersInitialized = true;
+        for (Runnable postInitCallback : mPostInitCallbacks) {
+            postInitCallback.run();
+        }
+        mPostInitCallbacks.clear();
+    }
+
+    public void onConfigurationChanged(@Config int configChanges) {
+        navbarButtonsViewController.onConfigurationChanged(configChanges);
     }
 
     /**
@@ -110,4 +130,17 @@
         taskbarAutohideSuspendController.onDestroy();
         taskbarPopupController.onDestroy();
     }
+
+    /**
+     * If all controllers are already initialized, runs the given callback immediately. Otherwise,
+     * queues it to run after calling init() on all controllers. This should likely be used in any
+     * case where one controller is telling another controller to do something inside init().
+     */
+    public void runAfterInit(Runnable callback) {
+        if (mAreAllControllersInitialized) {
+            callback.run();
+        } else {
+            mPostInitCallbacks.add(callback);
+        }
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java
index b3a9f8d..3315f8c 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java
@@ -51,6 +51,8 @@
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
 import com.android.launcher3.popup.PopupContainerWithArrow;
+import com.android.launcher3.shortcuts.DeepShortcutView;
+import com.android.launcher3.shortcuts.ShortcutDragPreviewProvider;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.system.ClipDescriptionCompat;
 import com.android.systemui.shared.system.LauncherAppsCompat;
@@ -88,6 +90,21 @@
      * @return Whether {@link View#startDragAndDrop} started successfully.
      */
     protected boolean startDragOnLongClick(View view) {
+        return startDragOnLongClick(view, null, null);
+    }
+
+    protected boolean startDragOnLongClick(
+            DeepShortcutView shortcutView, Point iconShift) {
+        return startDragOnLongClick(
+                shortcutView.getBubbleText(),
+                new ShortcutDragPreviewProvider(shortcutView.getIconView(), iconShift),
+                iconShift);
+    }
+
+    private boolean startDragOnLongClick(
+            View view,
+            @Nullable DragPreviewProvider dragPreviewProvider,
+            @Nullable Point iconShift) {
         if (!(view instanceof BubbleTextView)) {
             return false;
         }
@@ -96,7 +113,10 @@
 
         mActivity.setTaskbarWindowFullscreen(true);
         btv.post(() -> {
-            startInternalDrag(btv);
+            DragView dragView = startInternalDrag(btv, dragPreviewProvider);
+            if (iconShift != null) {
+                dragView.animateShift(-iconShift.x, -iconShift.y);
+            }
             btv.getIcon().setIsDisabled(true);
             mControllers.taskbarAutohideSuspendController.updateFlag(
                     TaskbarAutohideSuspendController.FLAG_AUTOHIDE_SUSPEND_DRAGGING, true);
@@ -104,7 +124,8 @@
         return true;
     }
 
-    private void startInternalDrag(BubbleTextView btv) {
+    private DragView startInternalDrag(
+            BubbleTextView btv, @Nullable DragPreviewProvider dragPreviewProvider) {
         float iconScale = btv.getIcon().getAnimatedScale();
 
         // Clear the pressed state if necessary
@@ -112,7 +133,8 @@
         btv.setPressed(false);
         btv.clearPressedBackground();
 
-        final DragPreviewProvider previewProvider = new DragPreviewProvider(btv);
+        final DragPreviewProvider previewProvider = dragPreviewProvider == null
+                ? new DragPreviewProvider(btv) : dragPreviewProvider;
         final Drawable drawable = previewProvider.createDrawable();
         final float scale = previewProvider.getScaleAndPosition(drawable, mTempXY);
         int dragLayerX = mTempXY[0];
@@ -149,7 +171,7 @@
             }
         }
 
-        startDrag(
+        return startDrag(
                 drawable,
                 /* view = */ null,
                 /* originalView = */ btv,
@@ -241,7 +263,8 @@
 
             @Override
             public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) {
-                shadowSize.set(mDragIconSize, mDragIconSize);
+                int iconSize = Math.max(mDragIconSize, btv.getWidth());
+                shadowSize.set(iconSize, iconSize);
                 // The registration point was taken before the icon scaled to mDragIconSize, so
                 // offset the registration to where the touch is on the new size.
                 int offsetX = (mDragIconSize - mDragObject.dragView.getDragRegionWidth()) / 2;
@@ -273,6 +296,12 @@
                     });
             intent = new Intent();
             if (item.itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
+                intent.putExtra(ClipDescriptionCompat.EXTRA_PENDING_INTENT,
+                        launcherApps.getShortcutIntent(
+                                item.getIntent().getPackage(),
+                                item.getDeepShortcutId(),
+                                null,
+                                item.user));
                 intent.putExtra(Intent.EXTRA_PACKAGE_NAME, item.getIntent().getPackage());
                 intent.putExtra(Intent.EXTRA_SHORTCUT_ID, item.getDeepShortcutId());
             } else {
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
index 152b255..f3c8cf3 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
@@ -15,7 +15,6 @@
  */
 package com.android.launcher3.taskbar;
 
-import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
 import static com.android.launcher3.taskbar.TaskbarStashController.FLAG_IN_APP;
 import static com.android.launcher3.taskbar.TaskbarStashController.FLAG_IN_STASHED_LAUNCHER_STATE;
 import static com.android.launcher3.taskbar.TaskbarStashController.TASKBAR_STASH_DURATION;
@@ -68,9 +67,6 @@
     private int mPrevState;
     private int mState;
 
-    private LauncherState mTargetStateOverride = null;
-    private LauncherState mTargetStateOverrideForStateTransition = null;
-
     private boolean mIsAnimatingToLauncherViaGesture;
     private boolean mIsAnimatingToLauncherViaResume;
 
@@ -79,7 +75,6 @@
 
                 @Override
                 public void onStateTransitionStart(LauncherState toState) {
-                    mTargetStateOverrideForStateTransition = toState;
                     updateStateForFlag(FLAG_TRANSITION_STATE_START_STASHED,
                             toState.isTaskbarStashed());
                     applyState();
@@ -134,18 +129,6 @@
         updateStateForFlag(FLAG_RECENTS_ANIMATION_RUNNING, true);
         animatorSet.play(stashController.applyStateWithoutStart(duration));
         animatorSet.play(applyState(duration, false));
-        animatorSet.addListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationEnd(Animator animator) {
-                mTargetStateOverride = null;
-                animator.removeListener(this);
-            }
-
-            @Override
-            public void onAnimationStart(Animator animator) {
-                mTargetStateOverride = toState;
-            }
-        });
 
         TaskBarRecentsAnimationListener listener = new TaskBarRecentsAnimationListener(callbacks);
         callbacks.addListener(listener);
@@ -284,7 +267,6 @@
                         // Reset hotseat alpha to default
                         mLauncher.getHotseat().setIconsAlpha(1);
                     }
-                    mTargetStateOverrideForStateTransition = null;
                 }
 
                 @Override
@@ -296,8 +278,6 @@
             animatorSet.play(mIconAlignmentForLauncherState.animateToValue(
                     getCurrentIconAlignmentRatioForLauncherState(),
                     isTransitionStateStashed ? 0 : 1));
-        } else {
-            mTargetStateOverrideForStateTransition = null;
         }
     }
 
@@ -318,20 +298,14 @@
     }
 
     private void onIconAlignmentRatioChangedForStateTransition() {
-        onIconAlignmentRatioChanged(
-                mTargetStateOverrideForStateTransition != null
-                        ? mTargetStateOverrideForStateTransition
-                        : mLauncher.getStateManager().getState(),
-                this::getCurrentIconAlignmentRatioForLauncherState);
+        onIconAlignmentRatioChanged(this::getCurrentIconAlignmentRatioForLauncherState);
     }
 
     private void onIconAlignmentRatioChanged() {
-        onIconAlignmentRatioChanged(mTargetStateOverride != null ? mTargetStateOverride
-                : mLauncher.getStateManager().getState(), this::getCurrentIconAlignmentRatio);
+        onIconAlignmentRatioChanged(this::getCurrentIconAlignmentRatio);
     }
 
-    private void onIconAlignmentRatioChanged(LauncherState state,
-            Supplier<Float> alignmentSupplier) {
+    private void onIconAlignmentRatioChanged(Supplier<Float> alignmentSupplier) {
         if (mControllers == null) {
             return;
         }
@@ -341,7 +315,8 @@
 
         mTaskbarBackgroundAlpha.updateValue(1 - alignment);
 
-        setIconAlpha(state, alignment);
+        // Switch taskbar and hotseat in last frame
+        setTaskbarViewVisible(alignment < 1);
     }
 
     private float getCurrentIconAlignmentRatio() {
@@ -352,15 +327,6 @@
         return mIconAlignmentForLauncherState.value;
     }
 
-    private void setIconAlpha(LauncherState state, float progress) {
-        if ((state.getVisibleElements(mLauncher) & HOTSEAT_ICONS) != 0) {
-            // If the hotseat icons are visible, then switch taskbar in last frame
-            setTaskbarViewVisible(progress < 1);
-        } else {
-            mIconAlphaForHome.setValue(1 - progress);
-        }
-    }
-
     private void setTaskbarViewVisible(boolean isVisible) {
         mIconAlphaForHome.setValue(isVisible ? 1 : 0);
     }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
index 8a86157..7f2e37c 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
@@ -30,8 +30,8 @@
 import android.content.res.Configuration;
 import android.hardware.display.DisplayManager;
 import android.net.Uri;
+import android.os.Handler;
 import android.provider.Settings;
-import android.util.Log;
 import android.view.Display;
 
 import androidx.annotation.NonNull;
@@ -94,7 +94,8 @@
         Display display =
                 service.getSystemService(DisplayManager.class).getDisplay(DEFAULT_DISPLAY);
         mContext = service.createWindowContext(display, TYPE_NAVIGATION_BAR_PANEL, null);
-        mNavButtonController = new TaskbarNavButtonController(service);
+        mNavButtonController = new TaskbarNavButtonController(service,
+                SystemUiProxy.INSTANCE.get(mContext), new Handler());
         mUserSetupCompleteListener = isUserSetupComplete -> recreateTaskbar();
         mComponentCallbacks = new ComponentCallbacks() {
             private Configuration mOldConfig = mContext.getResources().getConfiguration();
@@ -107,6 +108,11 @@
                 if ((configDiff & configsRequiringRecreate) != 0) {
                     // Color has changed, recreate taskbar to reload background color & icons.
                     recreateTaskbar();
+                } else {
+                    // Config change might be handled without re-creating the taskbar
+                    if (mTaskbarActivityContext != null) {
+                        mTaskbarActivityContext.onConfigurationChanged(configDiff);
+                    }
                 }
                 mOldConfig = newConfig;
             }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarModelCallbacks.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarModelCallbacks.java
index 6dcfe56..37a9b5e 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarModelCallbacks.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarModelCallbacks.java
@@ -184,9 +184,12 @@
         }
         mContainer.updateHotseatItems(hotseatItemInfos);
 
-        mControllers.taskbarStashController.updateStateForFlag(
-                TaskbarStashController.FLAG_STASHED_IN_APP_EMPTY, isHotseatEmpty);
-        mControllers.taskbarStashController.applyState();
+        final boolean finalIsHotseatEmpty = isHotseatEmpty;
+        mControllers.runAfterInit(() -> {
+            mControllers.taskbarStashController.updateStateForFlag(
+                    TaskbarStashController.FLAG_STASHED_IN_APP_EMPTY, finalIsHotseatEmpty);
+            mControllers.taskbarStashController.applyState();
+        });
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
index ae23eda..d233365 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
@@ -19,8 +19,10 @@
 
 import static com.android.internal.app.AssistUtils.INVOCATION_TYPE_HOME_BUTTON_LONG_PRESS;
 import static com.android.internal.app.AssistUtils.INVOCATION_TYPE_KEY;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_SCREEN_PINNING;
 
 import android.os.Bundle;
+import android.os.Handler;
 
 import androidx.annotation.IntDef;
 
@@ -40,6 +42,13 @@
  */
 public class TaskbarNavButtonController {
 
+    /** Allow some time in between the long press for back and recents. */
+    static final int SCREEN_PIN_LONG_PRESS_THRESHOLD = 200;
+    static final int SCREEN_PIN_LONG_PRESS_RESET = SCREEN_PIN_LONG_PRESS_THRESHOLD + 100;
+
+    private long mLastScreenPinLongPress;
+    private boolean mScreenPinned;
+
     @Retention(RetentionPolicy.SOURCE)
     @IntDef(value = {
             BUTTON_BACK,
@@ -57,10 +66,20 @@
     static final int BUTTON_IME_SWITCH = BUTTON_RECENTS << 1;
     static final int BUTTON_A11Y = BUTTON_IME_SWITCH << 1;
 
-    private final TouchInteractionService mService;
+    private static final int SCREEN_UNPIN_COMBO = BUTTON_BACK | BUTTON_RECENTS;
+    private int mLongPressedButtons = 0;
 
-    public TaskbarNavButtonController(TouchInteractionService service) {
+    private final TouchInteractionService mService;
+    private final SystemUiProxy mSystemUiProxy;
+    private final Handler mHandler;
+
+    private final Runnable mResetLongPress = this::resetScreenUnpin;
+
+    public TaskbarNavButtonController(TouchInteractionService service,
+            SystemUiProxy systemUiProxy, Handler handler) {
         mService = service;
+        mSystemUiProxy = systemUiProxy;
+        mHandler = handler;
     }
 
     public void onButtonClick(@TaskbarButton int buttonType) {
@@ -72,13 +91,13 @@
                 navigateHome();
                 break;
             case BUTTON_RECENTS:
-                navigateToOverview();;
+                navigateToOverview();
                 break;
             case BUTTON_IME_SWITCH:
                 showIMESwitcher();
                 break;
             case BUTTON_A11Y:
-                notifyImeClick(false /* longClick */);
+                notifyA11yClick(false /* longClick */);
                 break;
         }
     }
@@ -89,46 +108,98 @@
                 startAssistant();
                 return true;
             case BUTTON_A11Y:
-                notifyImeClick(true /* longClick */);
+                notifyA11yClick(true /* longClick */);
                 return true;
             case BUTTON_BACK:
-            case BUTTON_IME_SWITCH:
             case BUTTON_RECENTS:
+                mLongPressedButtons |= buttonType;
+                return determineScreenUnpin();
+            case BUTTON_IME_SWITCH:
             default:
                 return false;
         }
     }
 
+    /**
+     * Checks if the user has long pressed back and recents buttons
+     * "together" (within {@link #SCREEN_PIN_LONG_PRESS_THRESHOLD})ms
+     * If so, then requests the system to turn off screen pinning.
+     *
+     * @return true if the long press is a valid user action in attempting to unpin an app
+     *         Will always return {@code false} when screen pinning is not active.
+     *         NOTE: Returning true does not mean that screen pinning has stopped
+     */
+    private boolean determineScreenUnpin() {
+        long timeNow = System.currentTimeMillis();
+        if (!mScreenPinned) {
+            return false;
+        }
+
+        if (mLastScreenPinLongPress == 0) {
+            // First button long press registered, just mark time and wait for second button press
+            mLastScreenPinLongPress = System.currentTimeMillis();
+            mHandler.postDelayed(mResetLongPress, SCREEN_PIN_LONG_PRESS_RESET);
+            return true;
+        }
+
+        if ((timeNow - mLastScreenPinLongPress) > SCREEN_PIN_LONG_PRESS_THRESHOLD) {
+            // Too long in-between presses, reset the clock
+            resetScreenUnpin();
+            return false;
+        }
+
+        if ((mLongPressedButtons & SCREEN_UNPIN_COMBO) == SCREEN_UNPIN_COMBO) {
+            // Hooray! They did it (finally...)
+            mSystemUiProxy.stopScreenPinning();
+            mHandler.removeCallbacks(mResetLongPress);
+            resetScreenUnpin();
+        }
+        return true;
+    }
+
+    private void resetScreenUnpin() {
+        mLongPressedButtons = 0;
+        mLastScreenPinLongPress = 0;
+    }
+
+    public void updateSysuiFlags(int sysuiFlags) {
+        mScreenPinned = (sysuiFlags & SYSUI_STATE_SCREEN_PINNING) != 0;
+    }
+
     private void navigateHome() {
         mService.getOverviewCommandHelper().addCommand(OverviewCommandHelper.TYPE_HOME);
     }
 
     private void navigateToOverview() {
+        if (mScreenPinned) {
+            return;
+        }
         TestLogging.recordEvent(TestProtocol.SEQUENCE_MAIN, "onOverviewToggle");
         mService.getOverviewCommandHelper().addCommand(OverviewCommandHelper.TYPE_TOGGLE);
     }
 
     private void executeBack() {
-        SystemUiProxy.INSTANCE.getNoCreate().onBackPressed();
+        mSystemUiProxy.onBackPressed();
     }
 
     private void showIMESwitcher() {
-        SystemUiProxy.INSTANCE.getNoCreate().onImeSwitcherPressed();
+        mSystemUiProxy.onImeSwitcherPressed();
     }
 
-    private void notifyImeClick(boolean longClick) {
-        SystemUiProxy systemUiProxy = SystemUiProxy.INSTANCE.getNoCreate();
+    private void notifyA11yClick(boolean longClick) {
         if (longClick) {
-            systemUiProxy.notifyAccessibilityButtonLongClicked();
+            mSystemUiProxy.notifyAccessibilityButtonLongClicked();
         } else {
-            systemUiProxy.notifyAccessibilityButtonClicked(mService.getDisplayId());
+            mSystemUiProxy.notifyAccessibilityButtonClicked(mService.getDisplayId());
         }
     }
 
     private void startAssistant() {
+        if (mScreenPinned) {
+            return;
+        }
         Bundle args = new Bundle();
         args.putInt(INVOCATION_TYPE_KEY, INVOCATION_TYPE_HOME_BUTTON_LONG_PRESS);
-        SystemUiProxy systemUiProxy = SystemUiProxy.INSTANCE.getNoCreate();
-        systemUiProxy.startAssistant(args);
+        mSystemUiProxy.startAssistant(args);
     }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarPopupController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarPopupController.java
index 06c75fc..2dee506 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarPopupController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarPopupController.java
@@ -15,6 +15,10 @@
  */
 package com.android.launcher3.taskbar;
 
+import android.graphics.Point;
+import android.view.MotionEvent;
+import android.view.View;
+
 import androidx.annotation.NonNull;
 
 import com.android.launcher3.BubbleTextView;
@@ -30,6 +34,7 @@
 import com.android.launcher3.popup.PopupDataProvider;
 import com.android.launcher3.popup.PopupLiveUpdateHandler;
 import com.android.launcher3.popup.SystemShortcut;
+import com.android.launcher3.shortcuts.DeepShortcutView;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.LauncherBindableItemsContainer;
 import com.android.launcher3.util.PackageUserKey;
@@ -131,8 +136,14 @@
                 (PopupContainerWithArrow) context.getLayoutInflater().inflate(
                         R.layout.popup_container, context.getDragLayer(), false);
         container.addOnAttachStateChangeListener(
-                new PopupLiveUpdateHandler<>(mContext, container));
+                new PopupLiveUpdateHandler<TaskbarActivityContext>(mContext, container) {
+                    @Override
+                    protected void showPopupContainerForIcon(BubbleTextView originalIcon) {
+                        showForIcon(originalIcon);
+                    }
+                });
         // TODO (b/198438631): configure for taskbar/context
+        container.setPopupItemDragHandler(new TaskbarPopupItemDragHandler());
 
         container.populateAndShow(icon,
                 mPopupDataProvider.getShortcutCountForItem(item),
@@ -145,4 +156,43 @@
         container.requestFocus();
         return container;
     }
+
+    private class TaskbarPopupItemDragHandler implements
+            PopupContainerWithArrow.PopupItemDragHandler {
+
+        protected final Point mIconLastTouchPos = new Point();
+
+        TaskbarPopupItemDragHandler() {}
+
+        @Override
+        public boolean onTouch(View view, MotionEvent ev) {
+            // Touched a shortcut, update where it was touched so we can drag from there on
+            // long click.
+            switch (ev.getAction()) {
+                case MotionEvent.ACTION_DOWN:
+                case MotionEvent.ACTION_MOVE:
+                    mIconLastTouchPos.set((int) ev.getX(), (int) ev.getY());
+                    break;
+            }
+            return false;
+        }
+
+        @Override
+        public boolean onLongClick(View v) {
+            // Return early if not the correct view
+            if (!(v.getParent() instanceof DeepShortcutView)) return false;
+
+            DeepShortcutView sv = (DeepShortcutView) v.getParent();
+            sv.setWillDrawIcon(false);
+
+            // Move the icon to align with the center-top of the touch point
+            Point iconShift = new Point();
+            iconShift.x = mIconLastTouchPos.x - sv.getIconCenter().x;
+            iconShift.y = mIconLastTouchPos.y - mContext.getDeviceProfile().iconSizePx;
+
+            mControllers.taskbarDragController.startDragOnLongClick(sv, iconShift);
+
+            return false;
+        }
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarShortcutMenuAccessibilityDelegate.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarShortcutMenuAccessibilityDelegate.java
new file mode 100644
index 0000000..1589582
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarShortcutMenuAccessibilityDelegate.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2021 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.taskbar;
+
+import static com.android.launcher3.accessibility.LauncherAccessibilityDelegate.DEEP_SHORTCUTS;
+import static com.android.launcher3.accessibility.LauncherAccessibilityDelegate.SHORTCUTS_AND_NOTIFICATIONS;
+import static com.android.wm.shell.common.split.SplitScreenConstants.SPLIT_POSITION_BOTTOM_OR_RIGHT;
+import static com.android.wm.shell.common.split.SplitScreenConstants.SPLIT_POSITION_TOP_OR_LEFT;
+
+import android.content.Intent;
+import android.content.pm.LauncherApps;
+import android.view.KeyEvent;
+import android.view.View;
+
+import com.android.launcher3.BubbleTextView;
+import com.android.launcher3.LauncherSettings;
+import com.android.launcher3.R;
+import com.android.launcher3.accessibility.BaseAccessibilityDelegate;
+import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.model.data.ItemInfo;
+import com.android.launcher3.model.data.WorkspaceItemInfo;
+import com.android.launcher3.notification.NotificationListener;
+import com.android.launcher3.util.ShortcutUtil;
+import com.android.quickstep.SystemUiProxy;
+import com.android.systemui.shared.system.LauncherAppsCompat;
+
+import java.util.List;
+
+/**
+ * Accessibility delegate for the Taskbar. This provides an accessible interface for taskbar
+ * features.
+ */
+public class TaskbarShortcutMenuAccessibilityDelegate
+        extends BaseAccessibilityDelegate<TaskbarActivityContext> {
+
+    public static final int MOVE_TO_TOP_OR_LEFT = R.id.action_move_to_top_or_left;
+    public static final int MOVE_TO_BOTTOM_OR_RIGHT = R.id.action_move_to_bottom_or_right;
+
+    private final LauncherApps mLauncherApps;
+
+    public TaskbarShortcutMenuAccessibilityDelegate(TaskbarActivityContext context) {
+        super(context);
+        mLauncherApps = context.getSystemService(LauncherApps.class);
+
+        mActions.put(DEEP_SHORTCUTS, new LauncherAction(DEEP_SHORTCUTS,
+                R.string.action_deep_shortcut, KeyEvent.KEYCODE_S));
+        mActions.put(SHORTCUTS_AND_NOTIFICATIONS, new LauncherAction(DEEP_SHORTCUTS,
+                R.string.shortcuts_menu_with_notifications_description, KeyEvent.KEYCODE_S));
+        mActions.put(MOVE_TO_TOP_OR_LEFT, new LauncherAction(
+                MOVE_TO_TOP_OR_LEFT, R.string.move_drop_target_top_or_left, KeyEvent.KEYCODE_L));
+        mActions.put(MOVE_TO_BOTTOM_OR_RIGHT, new LauncherAction(
+                MOVE_TO_BOTTOM_OR_RIGHT,
+                R.string.move_drop_target_bottom_or_right,
+                KeyEvent.KEYCODE_R));
+    }
+
+    @Override
+    protected void getSupportedActions(View host, ItemInfo item, List<LauncherAction> out) {
+        if (ShortcutUtil.supportsShortcuts(item) && FeatureFlags.ENABLE_TASKBAR_POPUP_MENU.get()) {
+            out.add(mActions.get(NotificationListener.getInstanceIfConnected() != null
+                    ? SHORTCUTS_AND_NOTIFICATIONS : DEEP_SHORTCUTS));
+        }
+        out.add(mActions.get(MOVE_TO_TOP_OR_LEFT));
+        out.add(mActions.get(MOVE_TO_BOTTOM_OR_RIGHT));
+    }
+
+    @Override
+    protected boolean performAction(View host, ItemInfo item, int action, boolean fromKeyboard) {
+        if (item instanceof WorkspaceItemInfo
+                && (action == MOVE_TO_TOP_OR_LEFT || action == MOVE_TO_BOTTOM_OR_RIGHT)) {
+            WorkspaceItemInfo info = (WorkspaceItemInfo) item;
+            int side = action == MOVE_TO_TOP_OR_LEFT
+                    ? SPLIT_POSITION_TOP_OR_LEFT : SPLIT_POSITION_BOTTOM_OR_RIGHT;
+
+            if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
+                SystemUiProxy.INSTANCE.get(mContext).startShortcut(
+                        info.getIntent().getPackage(),
+                        info.getDeepShortcutId(),
+                        side,
+                        /* bundleOpts= */ null,
+                        info.user);
+            } else {
+                SystemUiProxy.INSTANCE.get(mContext).startIntent(
+                        LauncherAppsCompat.getMainActivityLaunchIntent(
+                                mLauncherApps,
+                                item.getIntent().getComponent(),
+                                /* startActivityOptions= */null,
+                                item.user),
+                        new Intent(), side, null);
+            }
+            return true;
+        } else if (action == DEEP_SHORTCUTS || action == SHORTCUTS_AND_NOTIFICATIONS) {
+            mContext.showPopupMenuForIcon((BubbleTextView) host);
+
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    protected boolean beginAccessibleDrag(View item, ItemInfo info, boolean fromKeyboard) {
+        return false;
+    }
+}
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
index f713dca..f6bc785 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
@@ -18,6 +18,8 @@
 import android.graphics.Rect;
 import android.view.View;
 
+import androidx.annotation.CallSuper;
+
 import com.android.launcher3.model.data.ItemInfoWithIcon;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
 
@@ -33,11 +35,15 @@
     // Initialized in init.
     protected TaskbarControllers mControllers;
 
+    @CallSuper
     protected void init(TaskbarControllers taskbarControllers) {
         mControllers = taskbarControllers;
     }
 
-    protected void onDestroy() { }
+    @CallSuper
+    protected void onDestroy() {
+        mControllers = null;
+    }
 
     protected boolean isTaskbarTouchable() {
         return true;
diff --git a/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java b/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
index d74b6c5..c85b256 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
@@ -34,6 +34,7 @@
 import static com.android.quickstep.views.RecentsView.TASK_SECONDARY_TRANSLATION;
 
 import android.util.FloatProperty;
+import android.util.Pair;
 
 import androidx.annotation.NonNull;
 
@@ -101,11 +102,13 @@
                 config.getInterpolator(ANIM_OVERVIEW_TRANSLATE_Y, LINEAR));
         PagedOrientationHandler orientationHandler =
                 ((RecentsView) mLauncher.getOverviewPanel()).getPagedOrientationHandler();
-        FloatProperty taskViewsFloat = orientationHandler.getSplitSelectTaskOffset(
-                TASK_PRIMARY_SPLIT_TRANSLATION, TASK_SECONDARY_SPLIT_TRANSLATION,
-                mLauncher.getDeviceProfile());
-        setter.setFloat(mRecentsView, taskViewsFloat,
+        Pair<FloatProperty, FloatProperty> taskViewsFloat =
+                orientationHandler.getSplitSelectTaskOffset(
+                        TASK_PRIMARY_SPLIT_TRANSLATION, TASK_SECONDARY_SPLIT_TRANSLATION,
+                        mLauncher.getDeviceProfile());
+        setter.setFloat(mRecentsView, taskViewsFloat.first,
                 toState.getSplitSelectTranslation(mLauncher), LINEAR);
+        setter.setFloat(mRecentsView, taskViewsFloat.second, 0, LINEAR);
 
         setter.setFloat(mRecentsView, getContentAlphaProperty(), toState.overviewUi ? 1 : 0,
                 config.getInterpolator(ANIM_OVERVIEW_FADE, AGGRESSIVE_EASE_IN_OUT));
diff --git a/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java b/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
index b21d677..19897a1 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
@@ -66,6 +66,12 @@
         // In Overview, we may be layering app surfaces behind Launcher, so we need to notify
         // DepthController to prevent optimizations which might occlude the layers behind
         mLauncher.getDepthController().setHasContentBehindLauncher(state.overviewUi);
+
+        if (isSplitSelectionState(state)) {
+            mRecentsView.applySplitPrimaryScrollOffset();
+        } else {
+            mRecentsView.resetSplitPrimaryScrollOffset();
+        }
     }
 
     @Override
@@ -90,9 +96,10 @@
         LauncherState currentState = mLauncher.getStateManager().getState();
         if (isSplitSelectionState(toState) && !isSplitSelectionState(currentState)) {
             builder.add(mRecentsView.createSplitSelectInitAnimation().buildAnim());
+        }
+        if (isSplitSelectionState(toState)) {
             mRecentsView.applySplitPrimaryScrollOffset();
-        } else if (!isSplitSelectionState(toState) && isSplitSelectionState(currentState)) {
-            builder.add(mRecentsView.cancelSplitSelect(true).buildAnim());
+        } else {
             mRecentsView.resetSplitPrimaryScrollOffset();
         }
 
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
index d396018..a4eff87 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
@@ -21,13 +21,11 @@
 import android.content.Context;
 import android.graphics.Rect;
 import android.os.SystemProperties;
-import android.view.View;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
-import com.android.launcher3.Workspace;
 import com.android.launcher3.util.Themes;
 import com.android.quickstep.SysUINavigationMode;
 import com.android.quickstep.util.LayoutUtils;
@@ -66,10 +64,7 @@
     @Override
     public ScaleAndTranslation getWorkspaceScaleAndTranslation(Launcher launcher) {
         RecentsView recentsView = launcher.getOverviewPanel();
-        Workspace workspace = launcher.getWorkspace();
-        View workspacePage = workspace.getPageAt(workspace.getCurrentPage());
-        float workspacePageWidth = workspacePage != null && workspacePage.getWidth() != 0
-                ? workspacePage.getWidth() : launcher.getDeviceProfile().availableWidthPx;
+        float workspacePageWidth = launcher.getDeviceProfile().getWorkspaceWidth();
         recentsView.getTaskSize(sTempRect);
         float scale = (float) sTempRect.width() / workspacePageWidth;
         float parallaxFactor = 0.5f;
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/SplitScreenSelectState.java b/quickstep/src/com/android/launcher3/uioverrides/states/SplitScreenSelectState.java
index 106375a..4f5f27a 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/SplitScreenSelectState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/SplitScreenSelectState.java
@@ -31,11 +31,6 @@
     }
 
     @Override
-    public void onBackPressed(Launcher launcher) {
-        launcher.getStateManager().goToState(OVERVIEW);
-    }
-
-    @Override
     public int getVisibleElements(Launcher launcher) {
         return SPLIT_PLACHOLDER_VIEW;
     }
diff --git a/quickstep/src/com/android/quickstep/RecentTasksList.java b/quickstep/src/com/android/quickstep/RecentTasksList.java
index 097850f..c5f4a53 100644
--- a/quickstep/src/com/android/quickstep/RecentTasksList.java
+++ b/quickstep/src/com/android/quickstep/RecentTasksList.java
@@ -36,7 +36,6 @@
 import com.android.wm.shell.util.GroupedRecentTaskInfo;
 import com.android.wm.shell.util.StagedSplitBounds;
 
-import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.function.Consumer;
@@ -220,26 +219,6 @@
         return newTasks;
     }
 
-    public void dump(String prefix, PrintWriter writer) {
-        writer.println(prefix + "RecentTasksList:");
-        writer.println(prefix + "  mChangeId=" + mChangeId);
-        writer.println(prefix + "  mResultsUi=[id=" + mResultsUi.mRequestId + ", tasks=");
-        for (GroupTask task : mResultsUi) {
-            writer.println(prefix + "    t1=" + task.task1.key.id
-                    + " t2=" + (task.hasMultipleTasks() ? task.task2.key.id : "-1"));
-        }
-        writer.println(prefix + "  ]");
-        int currentUserId = Process.myUserHandle().getIdentifier();
-        ArrayList<GroupedRecentTaskInfo> rawTasks =
-                mSysUiProxy.getRecentTasks(Integer.MAX_VALUE, currentUserId);
-        writer.println(prefix + "  rawTasks=[");
-        for (GroupedRecentTaskInfo task : rawTasks) {
-            writer.println(prefix + "    t1=" + task.mTaskInfo1.taskId
-                    + " t2=" + (task.mTaskInfo2 != null ? task.mTaskInfo2.taskId : "-1"));
-        }
-        writer.println(prefix + "  ]");
-    }
-
     private static class TaskLoadResult extends ArrayList<GroupTask> {
 
         final int mRequestId;
diff --git a/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java b/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java
index dd6392c..b502676 100644
--- a/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java
+++ b/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java
@@ -23,6 +23,7 @@
 import android.view.RemoteAnimationTarget;
 
 import androidx.annotation.BinderThread;
+import androidx.annotation.NonNull;
 import androidx.annotation.UiThread;
 
 import com.android.launcher3.Utilities;
@@ -77,7 +78,7 @@
 
     public void notifyAnimationCanceled() {
         mCancelled = true;
-        onAnimationCanceled(null);
+        onAnimationCanceled(new HashMap<>());
     }
 
     // Called only in Q platform
@@ -167,16 +168,17 @@
          * Callback from the system when the recents animation is canceled. {@param thumbnailData}
          * is passed back for rendering screenshot to replace live tile.
          */
-        default void onRecentsAnimationCanceled(HashMap<Integer, ThumbnailData> thumbnailDatas) {}
+        default void onRecentsAnimationCanceled(
+                @NonNull HashMap<Integer, ThumbnailData> thumbnailDatas) {}
 
         /**
          * Callback made whenever the recents animation is finished.
          */
-        default void onRecentsAnimationFinished(RecentsAnimationController controller) {}
+        default void onRecentsAnimationFinished(@NonNull RecentsAnimationController controller) {}
 
         /**
          * Callback made when a task started from the recents is ready for an app transition.
          */
-        default void onTasksAppeared(RemoteAnimationTargetCompat[] appearedTaskTarget) {}
+        default void onTasksAppeared(@NonNull RemoteAnimationTargetCompat[] appearedTaskTarget) {}
     }
 }
diff --git a/quickstep/src/com/android/quickstep/RecentsModel.java b/quickstep/src/com/android/quickstep/RecentsModel.java
index 5d77a6e..e539a8c 100644
--- a/quickstep/src/com/android/quickstep/RecentsModel.java
+++ b/quickstep/src/com/android/quickstep/RecentsModel.java
@@ -43,7 +43,6 @@
 import com.android.systemui.shared.system.TaskStackChangeListener;
 import com.android.systemui.shared.system.TaskStackChangeListeners;
 
-import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.Executor;
@@ -221,11 +220,6 @@
         mThumbnailChangeListeners.remove(listener);
     }
 
-    public void dump(String prefix, PrintWriter writer) {
-        writer.println(prefix + "RecentsModel:");
-        mTaskList.dump("  ", writer);
-    }
-
     /**
      * Listener for receiving various task properties changes
      */
diff --git a/quickstep/src/com/android/quickstep/SystemUiProxy.java b/quickstep/src/com/android/quickstep/SystemUiProxy.java
index c8abd14..6c623bc 100644
--- a/quickstep/src/com/android/quickstep/SystemUiProxy.java
+++ b/quickstep/src/com/android/quickstep/SystemUiProxy.java
@@ -83,16 +83,14 @@
         MAIN_EXECUTOR.execute(() -> clearProxy());
     };
 
-    // Save the listeners passed into the proxy since OverviewProxyService may not have been bound
-    // yet, and we'll need to set/register these listeners with SysUI when they do.  Note that it is
-    // up to the caller to clear the listeners to prevent leaks as these can be held indefinitely
-    // in case SysUI needs to rebind.
-    private IPipAnimationListener mPipAnimationListener;
-    private ISplitScreenListener mSplitScreenListener;
-    private IStartingWindowListener mStartingWindowListener;
-    private ISmartspaceCallback mSmartspaceCallback;
-    private IRecentTasksListener mRecentTasksListener;
-    private final ArrayList<RemoteTransitionCompat> mRemoteTransitions = new ArrayList<>();
+    // Save the listeners passed into the proxy since when set/register these listeners,
+    // setProxy may not have been called, eg. OverviewProxyService is not connected yet.
+    private IPipAnimationListener mPendingPipAnimationListener;
+    private ISplitScreenListener mPendingSplitScreenListener;
+    private IStartingWindowListener mPendingStartingWindowListener;
+    private ISmartspaceCallback mPendingSmartspaceCallback;
+    private IRecentTasksListener mPendingRecentTasksListener;
+    private final ArrayList<RemoteTransitionCompat> mPendingRemoteTransitions = new ArrayList<>();
 
     // Used to dedupe calls to SystemUI
     private int mLastShelfHeight;
@@ -169,23 +167,29 @@
         mRecentTasks = recentTasks;
         linkToDeath();
         // re-attach the listeners once missing due to setProxy has not been initialized yet.
-        if (mPipAnimationListener != null && mPip != null) {
-            setPinnedStackAnimationListener(mPipAnimationListener);
+        if (mPendingPipAnimationListener != null && mPip != null) {
+            setPinnedStackAnimationListener(mPendingPipAnimationListener);
+            mPendingPipAnimationListener = null;
         }
-        if (mSplitScreenListener != null && mSplitScreen != null) {
-            registerSplitScreenListener(mSplitScreenListener);
+        if (mPendingSplitScreenListener != null && mSplitScreen != null) {
+            registerSplitScreenListener(mPendingSplitScreenListener);
+            mPendingSplitScreenListener = null;
         }
-        if (mStartingWindowListener != null && mStartingWindow != null) {
-            setStartingWindowListener(mStartingWindowListener);
+        if (mPendingStartingWindowListener != null && mStartingWindow != null) {
+            setStartingWindowListener(mPendingStartingWindowListener);
+            mPendingStartingWindowListener = null;
         }
-        if (mSmartspaceCallback != null && mSmartspaceTransitionController != null) {
-            setSmartspaceCallback(mSmartspaceCallback);
+        if (mPendingSmartspaceCallback != null && mSmartspaceTransitionController != null) {
+            setSmartspaceCallback(mPendingSmartspaceCallback);
+            mPendingSmartspaceCallback = null;
         }
-        for (int i = mRemoteTransitions.size() - 1; i >= 0; --i) {
-            registerRemoteTransition(mRemoteTransitions.get(i));
+        for (int i = mPendingRemoteTransitions.size() - 1; i >= 0; --i) {
+            registerRemoteTransition(mPendingRemoteTransitions.get(i));
         }
-        if (mRecentTasksListener != null && mRecentTasks != null) {
-            registerRecentTasksListener(mRecentTasksListener);
+        mPendingRemoteTransitions.clear();
+        if (mPendingRecentTasksListener != null && mRecentTasks != null) {
+            registerRecentTasksListener(mPendingRecentTasksListener);
+            mPendingRecentTasksListener = null;
         }
 
         if (mPendingSetNavButtonAlpha != null) {
@@ -509,8 +513,9 @@
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call setPinnedStackAnimationListener", e);
             }
+        } else {
+            mPendingPipAnimationListener = listener;
         }
-        mPipAnimationListener = listener;
     }
 
     public Rect startSwipePipToHome(ComponentName componentName, ActivityInfo activityInfo,
@@ -548,8 +553,9 @@
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call registerSplitScreenListener");
             }
+        } else {
+            mPendingSplitScreenListener = listener;
         }
-        mSplitScreenListener = listener;
     }
 
     public void unregisterSplitScreenListener(ISplitScreenListener listener) {
@@ -560,17 +566,17 @@
                 Log.w(TAG, "Failed call unregisterSplitScreenListener");
             }
         }
-        mSplitScreenListener = null;
+        mPendingSplitScreenListener = null;
     }
 
     /** Start multiple tasks in split-screen simultaneously. */
     public void startTasks(int mainTaskId, Bundle mainOptions, int sideTaskId, Bundle sideOptions,
-            @SplitConfigurationOptions.StagePosition int sidePosition,
+            @SplitConfigurationOptions.StagePosition int sidePosition, float splitRatio,
             RemoteTransitionCompat remoteTransition) {
         if (mSystemUiProxy != null) {
             try {
                 mSplitScreen.startTasks(mainTaskId, mainOptions, sideTaskId, sideOptions,
-                        sidePosition, remoteTransition.getTransition());
+                        sidePosition, splitRatio, remoteTransition.getTransition());
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call startTask");
             }
@@ -582,22 +588,22 @@
      */
     public void startTasksWithLegacyTransition(int mainTaskId, Bundle mainOptions, int sideTaskId,
             Bundle sideOptions, @SplitConfigurationOptions.StagePosition int sidePosition,
-            RemoteAnimationAdapter adapter) {
+            float splitRatio, RemoteAnimationAdapter adapter) {
         if (mSystemUiProxy != null) {
             try {
                 mSplitScreen.startTasksWithLegacyTransition(mainTaskId, mainOptions, sideTaskId,
-                        sideOptions, sidePosition, adapter);
+                        sideOptions, sidePosition, splitRatio, adapter);
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call startTasksWithLegacyTransition");
             }
         }
     }
 
-    public void startShortcut(String packageName, String shortcutId, int stage, int position,
+    public void startShortcut(String packageName, String shortcutId, int position,
             Bundle options, UserHandle user) {
         if (mSplitScreen != null) {
             try {
-                mSplitScreen.startShortcut(packageName, shortcutId, stage, position, options,
+                mSplitScreen.startShortcut(packageName, shortcutId, position, options,
                         user);
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call startShortcut");
@@ -605,11 +611,11 @@
         }
     }
 
-    public void startIntent(PendingIntent intent, Intent fillInIntent, int stage, int position,
+    public void startIntent(PendingIntent intent, Intent fillInIntent, int position,
             Bundle options) {
         if (mSplitScreen != null) {
             try {
-                mSplitScreen.startIntent(intent, fillInIntent, stage, position, options);
+                mSplitScreen.startIntent(intent, fillInIntent, position, options);
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call startIntent");
             }
@@ -681,8 +687,9 @@
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call registerRemoteTransition");
             }
+        } else {
+            mPendingRemoteTransitions.add(remoteTransition);
         }
-        mRemoteTransitions.add(remoteTransition);
     }
 
     public void unregisterRemoteTransition(RemoteTransitionCompat remoteTransition) {
@@ -693,7 +700,7 @@
                 Log.w(TAG, "Failed call registerRemoteTransition");
             }
         }
-        mRemoteTransitions.remove(remoteTransition);
+        mPendingRemoteTransitions.remove(remoteTransition);
     }
 
     //
@@ -710,8 +717,9 @@
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call setStartingWindowListener", e);
             }
+        } else {
+            mPendingStartingWindowListener = listener;
         }
-        mStartingWindowListener = listener;
     }
 
     //
@@ -725,8 +733,9 @@
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call setStartingWindowListener", e);
             }
+        } else {
+            mPendingSmartspaceCallback = callback;
         }
-        mSmartspaceCallback = callback;
     }
 
     //
@@ -740,8 +749,9 @@
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call registerRecentTasksListener", e);
             }
+        } else {
+            mPendingRecentTasksListener = listener;
         }
-        mRecentTasksListener = listener;
     }
 
     public void unregisterRecentTasksListener(IRecentTasksListener listener) {
@@ -752,7 +762,7 @@
                 Log.w(TAG, "Failed call unregisterRecentTasksListener");
             }
         }
-        mRecentTasksListener = null;
+        mPendingRecentTasksListener = null;
     }
 
     public ArrayList<GroupedRecentTaskInfo> getRecentTasks(int numTasks, int userId) {
diff --git a/quickstep/src/com/android/quickstep/TaskViewUtils.java b/quickstep/src/com/android/quickstep/TaskViewUtils.java
index e77ec78..97fc6d7 100644
--- a/quickstep/src/com/android/quickstep/TaskViewUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskViewUtils.java
@@ -316,7 +316,7 @@
                 mt[i] = localMt;
 
                 Matrix localMti = new Matrix();
-                localMti.invert(localMt);
+                localMt.invert(localMti);
                 mti[i] = localMti;
             }
 
diff --git a/quickstep/src/com/android/quickstep/TouchInteractionService.java b/quickstep/src/com/android/quickstep/TouchInteractionService.java
index d1f39d2..707b905 100644
--- a/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -948,7 +948,6 @@
             pw.println("  resumed=" + resumed);
             pw.println("  mConsumer=" + mConsumer.getName());
             ActiveGestureLog.INSTANCE.dump("", pw);
-            RecentsModel.INSTANCE.get(this).dump("", pw);
             pw.println("ProtoTrace:");
             pw.println("  file=" + ProtoTracer.INSTANCE.get(this).getTraceFile());
         }
diff --git a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsView.java b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsView.java
index fcff858..5b4eb8b 100644
--- a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsView.java
+++ b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsView.java
@@ -31,18 +31,19 @@
 
 import androidx.annotation.Nullable;
 
+import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.statemanager.StateManager.StateListener;
 import com.android.quickstep.FallbackActivityInterface;
 import com.android.quickstep.GestureState;
 import com.android.quickstep.RecentsActivity;
+import com.android.quickstep.util.GroupTask;
 import com.android.quickstep.util.SplitSelectStateController;
 import com.android.quickstep.util.TaskViewSimulator;
 import com.android.quickstep.views.OverviewActionsView;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
-import com.android.quickstep.util.GroupTask;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.recents.model.Task.TaskKey;
 
@@ -73,6 +74,7 @@
     @Override
     public void startHome() {
         mActivity.startHome();
+        AbstractFloatingView.closeAllOpenViews(mActivity, mActivity.isStarted());
     }
 
     /**
@@ -207,10 +209,6 @@
 
     @Override
     public void onStateTransitionStart(RecentsState toState) {
-        if (toState == HOME) {
-            // Clean-up logic that occurs when recents is no longer in use/visible.
-            reset();
-        }
         setOverviewStateEnabled(true);
         setOverviewGridEnabled(toState.displayOverviewTasksAsGrid(mActivity.getDeviceProfile()));
         setOverviewFullscreenEnabled(toState.isFullScreen());
@@ -219,6 +217,10 @@
 
     @Override
     public void onStateTransitionComplete(RecentsState finalState) {
+        if (finalState == HOME) {
+            // Clean-up logic that occurs when recents is no longer in use/visible.
+            reset();
+        }
         boolean isOverlayEnabled = finalState == DEFAULT || finalState == MODAL_TASK;
         setOverlayEnabled(isOverlayEnabled);
         setFreezeViewVisibility(false);
diff --git a/quickstep/src/com/android/quickstep/util/BaseUnfoldMoveFromCenterAnimator.java b/quickstep/src/com/android/quickstep/util/BaseUnfoldMoveFromCenterAnimator.java
new file mode 100644
index 0000000..861ff96
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/util/BaseUnfoldMoveFromCenterAnimator.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.util;
+
+import android.annotation.CallSuper;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.WindowManager;
+
+import com.android.systemui.shared.animation.UnfoldMoveFromCenterAnimator;
+import com.android.systemui.unfold.UnfoldTransitionProgressProvider.TransitionProgressListener;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Animation that moves launcher icons and widgets from center to the sides (final position)
+ */
+public abstract class BaseUnfoldMoveFromCenterAnimator implements TransitionProgressListener {
+
+    private final UnfoldMoveFromCenterAnimator mMoveFromCenterAnimation;
+
+    private final Map<ViewGroup, Boolean> mOriginalClipToPadding = new HashMap<>();
+    private final Map<ViewGroup, Boolean> mOriginalClipChildren = new HashMap<>();
+
+    public BaseUnfoldMoveFromCenterAnimator(WindowManager windowManager) {
+        mMoveFromCenterAnimation = new UnfoldMoveFromCenterAnimator(windowManager,
+                new LauncherViewsMoveFromCenterTranslationApplier());
+    }
+
+    @CallSuper
+    @Override
+    public void onTransitionStarted() {
+        mMoveFromCenterAnimation.updateDisplayProperties();
+        onPrepareViewsForAnimation();
+        onTransitionProgress(0f);
+    }
+
+    @CallSuper
+    @Override
+    public void onTransitionProgress(float progress) {
+        mMoveFromCenterAnimation.onTransitionProgress(progress);
+    }
+
+    @CallSuper
+    @Override
+    public void onTransitionFinished() {
+        mMoveFromCenterAnimation.onTransitionFinished();
+        mMoveFromCenterAnimation.clearRegisteredViews();
+
+        mOriginalClipChildren.clear();
+        mOriginalClipToPadding.clear();
+    }
+
+    protected void onPrepareViewsForAnimation() {
+
+    }
+
+    protected void registerViewForAnimation(View view) {
+        mMoveFromCenterAnimation.registerViewForAnimation(view);
+    }
+
+    protected void disableClipping(ViewGroup view) {
+        mOriginalClipToPadding.put(view, view.getClipToPadding());
+        mOriginalClipChildren.put(view, view.getClipChildren());
+        view.setClipToPadding(false);
+        view.setClipChildren(false);
+    }
+
+    protected void restoreClipping(ViewGroup view) {
+        final Boolean originalClipToPadding = mOriginalClipToPadding.get(view);
+        if (originalClipToPadding != null) {
+            view.setClipToPadding(originalClipToPadding);
+        }
+        final Boolean originalClipChildren = mOriginalClipChildren.get(view);
+        if (originalClipChildren != null) {
+            view.setClipChildren(originalClipChildren);
+        }
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/util/LauncherUnfoldAnimationController.java b/quickstep/src/com/android/quickstep/util/LauncherUnfoldAnimationController.java
index b39412b..6b6bd6a 100644
--- a/quickstep/src/com/android/quickstep/util/LauncherUnfoldAnimationController.java
+++ b/quickstep/src/com/android/quickstep/util/LauncherUnfoldAnimationController.java
@@ -18,14 +18,17 @@
 import static com.android.launcher3.Utilities.comp;
 
 import android.annotation.Nullable;
-import android.view.ViewTreeObserver;
 import android.view.WindowManager;
+import android.view.WindowManagerGlobal;
+
+import androidx.core.view.OneShotPreDrawListener;
 
 import com.android.launcher3.Hotseat;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.util.HorizontalInsettableView;
 import com.android.systemui.unfold.UnfoldTransitionProgressProvider;
 import com.android.systemui.unfold.UnfoldTransitionProgressProvider.TransitionProgressListener;
+import com.android.systemui.unfold.util.NaturalRotationUnfoldProgressProvider;
 import com.android.systemui.unfold.util.ScopedUnfoldTransitionProgressProvider;
 
 /**
@@ -43,6 +46,7 @@
     private HorizontalInsettableView mQsbInsettable;
 
     private final ScopedUnfoldTransitionProgressProvider mProgressProvider;
+    private final NaturalRotationUnfoldProgressProvider mNaturalOrientationProgressProvider;
 
     public LauncherUnfoldAnimationController(
             Launcher launcher,
@@ -51,10 +55,19 @@
         mLauncher = launcher;
         mProgressProvider = new ScopedUnfoldTransitionProgressProvider(
                 unfoldTransitionProgressProvider);
+        mNaturalOrientationProgressProvider = new NaturalRotationUnfoldProgressProvider(launcher,
+                WindowManagerGlobal.getWindowManagerService(), mProgressProvider);
+        mNaturalOrientationProgressProvider.init();
 
+        // Animated in all orientations
         mProgressProvider.addCallback(new UnfoldMoveFromCenterWorkspaceAnimator(launcher,
                 windowManager));
-        mProgressProvider.addCallback(new QsbAnimationListener());
+
+        // Animated only in natural orientation
+        mNaturalOrientationProgressProvider
+                .addCallback(new QsbAnimationListener());
+        mNaturalOrientationProgressProvider
+                .addCallback(new UnfoldMoveFromCenterHotseatAnimator(launcher, windowManager));
     }
 
     /**
@@ -66,17 +79,8 @@
             mQsbInsettable = (HorizontalInsettableView) hotseat.getQsb();
         }
 
-        final ViewTreeObserver obs = mLauncher.getWorkspace().getViewTreeObserver();
-        obs.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
-            @Override
-            public boolean onPreDraw() {
-                if (obs.isAlive()) {
-                    mProgressProvider.setReadyToHandleTransition(true);
-                    obs.removeOnPreDrawListener(this);
-                }
-                return true;
-            }
-        });
+        OneShotPreDrawListener.add(mLauncher.getWorkspace(),
+                () -> mProgressProvider.setReadyToHandleTransition(true));
     }
 
     /**
@@ -92,6 +96,7 @@
      */
     public void onDestroy() {
         mProgressProvider.destroy();
+        mNaturalOrientationProgressProvider.destroy();
     }
 
     private class QsbAnimationListener implements TransitionProgressListener {
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
index c784d82..d310893 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
@@ -18,6 +18,7 @@
 
 import static com.android.launcher3.Utilities.postAsyncCallback;
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.util.SplitConfigurationOptions.DEFAULT_SPLIT_RATIO;
 import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_BOTTOM_OR_RIGHT;
 import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_TOP_OR_LEFT;
 
@@ -30,7 +31,6 @@
 import android.view.SurfaceControl;
 import android.window.TransitionInfo;
 
-
 import androidx.annotation.Nullable;
 
 import com.android.launcher3.statehandlers.DepthController;
@@ -95,7 +95,7 @@
     public void setSecondTaskId(Task task, Consumer<Boolean> callback) {
         mSecondTask = task;
         launchTasks(mInitialTask, mSecondTask, mStagePosition, callback,
-                false /* freezeTaskList */);
+                false /* freezeTaskList */, DEFAULT_SPLIT_RATIO);
     }
 
     /**
@@ -107,14 +107,15 @@
         TaskView.TaskIdAttributeContainer[] taskIdAttributeContainers =
                 groupedTaskView.getTaskIdAttributeContainers();
         launchTasks(taskIdAttributeContainers[0].getTask(), taskIdAttributeContainers[1].getTask(),
-                taskIdAttributeContainers[0].getStagePosition(), callback, freezeTaskList);
+                taskIdAttributeContainers[0].getStagePosition(), callback, freezeTaskList,
+                groupedTaskView.getSplitRatio());
     }
 
     /**
      * @param stagePosition representing location of task1
      */
     public void launchTasks(Task task1, Task task2, @StagePosition int stagePosition,
-            Consumer<Boolean> callback, boolean freezeTaskList) {
+            Consumer<Boolean> callback, boolean freezeTaskList, float splitRatio) {
         // Assume initial task is for top/left part of screen
         final int[] taskIds = stagePosition == STAGE_POSITION_TOP_OR_LEFT
                 ? new int[]{task1.key.id, task2.key.id}
@@ -123,7 +124,7 @@
             RemoteSplitLaunchTransitionRunner animationRunner =
                     new RemoteSplitLaunchTransitionRunner(task1, task2);
             mSystemUiProxy.startTasks(taskIds[0], null /* mainOptions */, taskIds[1],
-                    null /* sideOptions */, STAGE_POSITION_BOTTOM_OR_RIGHT,
+                    null /* sideOptions */, STAGE_POSITION_BOTTOM_OR_RIGHT, splitRatio,
                     new RemoteTransitionCompat(animationRunner, MAIN_EXECUTOR,
                             ActivityThread.currentActivityThread().getApplicationThread()));
         } else {
@@ -140,7 +141,7 @@
             }
             mSystemUiProxy.startTasksWithLegacyTransition(taskIds[0], mainOpts.toBundle(),
                     taskIds[1], null /* sideOptions */, STAGE_POSITION_BOTTOM_OR_RIGHT,
-                    adapter);
+                    splitRatio, adapter);
         }
     }
 
diff --git a/quickstep/src/com/android/quickstep/util/UnfoldMoveFromCenterHotseatAnimator.java b/quickstep/src/com/android/quickstep/util/UnfoldMoveFromCenterHotseatAnimator.java
new file mode 100644
index 0000000..dc97dd6
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/util/UnfoldMoveFromCenterHotseatAnimator.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.util;
+
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.WindowManager;
+
+import com.android.launcher3.Hotseat;
+import com.android.launcher3.Launcher;
+
+/**
+ * Animation that moves hotseat icons from center to the sides (final position)
+ */
+public class UnfoldMoveFromCenterHotseatAnimator extends BaseUnfoldMoveFromCenterAnimator {
+
+    private final Launcher mLauncher;
+
+    public UnfoldMoveFromCenterHotseatAnimator(Launcher launcher, WindowManager windowManager) {
+        super(windowManager);
+        mLauncher = launcher;
+    }
+
+    @Override
+    protected void onPrepareViewsForAnimation() {
+        Hotseat hotseat = mLauncher.getHotseat();
+
+        ViewGroup hotseatIcons = hotseat.getShortcutsAndWidgets();
+        disableClipping(hotseat);
+
+        for (int i = 0; i < hotseatIcons.getChildCount(); i++) {
+            View child = hotseatIcons.getChildAt(i);
+            registerViewForAnimation(child);
+        }
+    }
+
+    @Override
+    public void onTransitionFinished() {
+        restoreClipping(mLauncher.getHotseat());
+        super.onTransitionFinished();
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/util/UnfoldMoveFromCenterWorkspaceAnimator.java b/quickstep/src/com/android/quickstep/util/UnfoldMoveFromCenterWorkspaceAnimator.java
index 95403b2..3d72398 100644
--- a/quickstep/src/com/android/quickstep/util/UnfoldMoveFromCenterWorkspaceAnimator.java
+++ b/quickstep/src/com/android/quickstep/util/UnfoldMoveFromCenterWorkspaceAnimator.java
@@ -16,44 +16,28 @@
 package com.android.quickstep.util;
 
 import android.view.View;
-import android.view.ViewGroup;
 import android.view.WindowManager;
 
 import com.android.launcher3.CellLayout;
-import com.android.launcher3.Hotseat;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.ShortcutAndWidgetContainer;
 import com.android.launcher3.Workspace;
-import com.android.systemui.shared.animation.UnfoldMoveFromCenterAnimator;
-import com.android.systemui.unfold.UnfoldTransitionProgressProvider;
-
-import java.util.HashMap;
-import java.util.Map;
 
 /**
  * Animation that moves launcher icons and widgets from center to the sides (final position)
  */
-public class UnfoldMoveFromCenterWorkspaceAnimator
-        implements UnfoldTransitionProgressProvider.TransitionProgressListener {
+public class UnfoldMoveFromCenterWorkspaceAnimator extends BaseUnfoldMoveFromCenterAnimator {
 
     private final Launcher mLauncher;
-    private final UnfoldMoveFromCenterAnimator mMoveFromCenterAnimation;
-
-    private final Map<ViewGroup, Boolean> mOriginalClipToPadding = new HashMap<>();
-    private final Map<ViewGroup, Boolean> mOriginalClipChildren = new HashMap<>();
 
     public UnfoldMoveFromCenterWorkspaceAnimator(Launcher launcher, WindowManager windowManager) {
+        super(windowManager);
         mLauncher = launcher;
-        mMoveFromCenterAnimation = new UnfoldMoveFromCenterAnimator(windowManager,
-                new LauncherViewsMoveFromCenterTranslationApplier());
     }
 
     @Override
-    public void onTransitionStarted() {
-        mMoveFromCenterAnimation.updateDisplayProperties();
-
+    protected void onPrepareViewsForAnimation() {
         Workspace workspace = mLauncher.getWorkspace();
-        Hotseat hotseat = mLauncher.getHotseat();
 
         // App icons and widgets
         workspace
@@ -65,57 +49,17 @@
 
                     for (int i = 0; i < itemsContainer.getChildCount(); i++) {
                         View child = itemsContainer.getChildAt(i);
-                        mMoveFromCenterAnimation.registerViewForAnimation(child);
+                        registerViewForAnimation(child);
                     }
                 });
 
         disableClipping(workspace);
-
-        // Hotseat icons
-        ViewGroup hotseatIcons = hotseat.getShortcutsAndWidgets();
-        disableClipping(hotseat);
-
-        for (int i = 0; i < hotseatIcons.getChildCount(); i++) {
-            View child = hotseatIcons.getChildAt(i);
-            mMoveFromCenterAnimation.registerViewForAnimation(child);
-        }
-
-        onTransitionProgress(0f);
-    }
-
-    @Override
-    public void onTransitionProgress(float progress) {
-        mMoveFromCenterAnimation.onTransitionProgress(progress);
     }
 
     @Override
     public void onTransitionFinished() {
-        mMoveFromCenterAnimation.onTransitionFinished();
-        mMoveFromCenterAnimation.clearRegisteredViews();
-
         restoreClipping(mLauncher.getWorkspace());
         mLauncher.getWorkspace().forEachVisiblePage(page -> restoreClipping((CellLayout) page));
-        restoreClipping(mLauncher.getHotseat());
-
-        mOriginalClipChildren.clear();
-        mOriginalClipToPadding.clear();
-    }
-
-    private void disableClipping(ViewGroup view) {
-        mOriginalClipToPadding.put(view, view.getClipToPadding());
-        mOriginalClipChildren.put(view, view.getClipChildren());
-        view.setClipToPadding(false);
-        view.setClipChildren(false);
-    }
-
-    private void restoreClipping(ViewGroup view) {
-        final Boolean originalClipToPadding = mOriginalClipToPadding.get(view);
-        if (originalClipToPadding != null) {
-            view.setClipToPadding(originalClipToPadding);
-        }
-        final Boolean originalClipChildren = mOriginalClipChildren.get(view);
-        if (originalClipChildren != null) {
-            view.setClipChildren(originalClipChildren);
-        }
+        super.onTransitionFinished();
     }
 }
diff --git a/quickstep/src/com/android/quickstep/views/FloatingTaskView.java b/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
index 325ec04..a343e0a 100644
--- a/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
+++ b/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
@@ -129,9 +129,7 @@
     public void update(RectF position, float progress, float windowRadius) {
         MarginLayoutParams lp = (MarginLayoutParams) getLayoutParams();
 
-        float dX = mIsRtl
-                ? position.left - (lp.getMarginStart() - lp.width)
-                : position.left - lp.getMarginStart();
+        float dX = position.left - lp.getMarginStart();
         float dY = position.top - lp.topMargin;
 
         setTranslationX(dX);
@@ -157,16 +155,10 @@
         lp.ignoreInsets = true;
         // Position the floating view exactly on top of the original
         lp.topMargin = Math.round(pos.top);
-        if (mIsRtl) {
-            lp.setMarginStart(Math.round(mLauncher.getDeviceProfile().widthPx - pos.right));
-        } else {
-            lp.setMarginStart(Math.round(pos.left));
-        }
+        lp.setMarginStart(Math.round(pos.left));
         // Set the properties here already to make sure they are available when running the first
         // animation frame.
-        int left = mIsRtl
-                ? mLauncher.getDeviceProfile().widthPx - lp.getMarginStart() - lp.width
-                : lp.leftMargin;
+        int left = lp.leftMargin;
         layout(left, lp.topMargin, left + lp.width, lp.topMargin + lp.height);
     }
 
diff --git a/quickstep/src/com/android/quickstep/views/GroupedTaskView.java b/quickstep/src/com/android/quickstep/views/GroupedTaskView.java
index 4771d1e..9311261 100644
--- a/quickstep/src/com/android/quickstep/views/GroupedTaskView.java
+++ b/quickstep/src/com/android/quickstep/views/GroupedTaskView.java
@@ -1,5 +1,6 @@
 package com.android.quickstep.views;
 
+import static com.android.launcher3.util.SplitConfigurationOptions.DEFAULT_SPLIT_RATIO;
 import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_BOTTOM_OR_RIGHT;
 import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_TOP_OR_LEFT;
 
@@ -122,6 +123,14 @@
         invalidate();
     }
 
+    public float getSplitRatio() {
+        if (mSplitBoundsConfig != null) {
+            return mSplitBoundsConfig.appsStackedVertically
+                    ? mSplitBoundsConfig.topTaskPercent : mSplitBoundsConfig.leftTaskPercent;
+        }
+        return DEFAULT_SPLIT_RATIO;
+    }
+
     @Override
     public boolean offerTouchToChildren(MotionEvent event) {
         computeAndSetIconTouchDelegate(mIconView2, mIcon2CenterCoords, mIcon2TouchDelegate);
@@ -148,16 +157,27 @@
     @Nullable
     @Override
     public RunnableList launchTaskAnimated() {
-        getRecentsView().getSplitPlaceholder().launchTasks(this /*groupedTaskView*/,
-                null /*callback*/,
+        if (mTask == null || mSecondaryTask == null) {
+            return null;
+        }
+
+        RunnableList endCallback = new RunnableList();
+        RecentsView recentsView = getRecentsView();
+        // Callbacks run from remote animation when recents animation not currently running
+        recentsView.getSplitPlaceholder().launchTasks(this /*groupedTaskView*/,
+                success -> endCallback.executeAllAndDestroy(),
                 false /* freezeTaskList */);
-        return null;
+
+        // Callbacks get run from recentsView for case when recents animation already running
+        recentsView.addSideTaskLaunchCallback(endCallback);
+        return endCallback;
     }
 
     @Override
     public void launchTask(@NonNull Consumer<Boolean> callback, boolean freezeTaskList) {
         getRecentsView().getSplitPlaceholder().launchTasks(mTask, mSecondaryTask,
-                STAGE_POSITION_TOP_OR_LEFT, callback, freezeTaskList);
+                STAGE_POSITION_TOP_OR_LEFT, callback, freezeTaskList,
+                getSplitRatio());
     }
 
     @Override
@@ -238,4 +258,10 @@
         super.updateSnapshotRadius();
         mSnapshotView2.setFullscreenParams(mCurrentFullscreenParams);
     }
+
+    @Override
+    protected void setIconAndDimTransitionProgress(float progress, boolean invert) {
+        super.setIconAndDimTransitionProgress(progress, invert);
+        mIconView2.setAlpha(mIconView.getAlpha());
+    }
 }
diff --git a/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java b/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
index a2e9e57..3e06f55 100644
--- a/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
@@ -32,6 +32,7 @@
 
 import androidx.annotation.Nullable;
 
+import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.BaseQuickstepLauncher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.statehandlers.DepthController;
@@ -70,6 +71,7 @@
     @Override
     public void startHome() {
         mActivity.getStateManager().goToState(NORMAL);
+        AbstractFloatingView.closeAllOpenViews(mActivity, mActivity.isStarted());
     }
 
     @Override
@@ -92,10 +94,6 @@
 
     @Override
     public void onStateTransitionStart(LauncherState toState) {
-        if (toState == NORMAL || toState == SPRING_LOADED) {
-            // Clean-up logic that occurs when recents is no longer in use/visible.
-            reset();
-        }
         setOverviewStateEnabled(toState.overviewUi);
         setOverviewGridEnabled(toState.displayOverviewTasksAsGrid(mActivity.getDeviceProfile()));
         setOverviewFullscreenEnabled(toState.getOverviewFullscreenProgress() == 1);
@@ -104,6 +102,10 @@
 
     @Override
     public void onStateTransitionComplete(LauncherState finalState) {
+        if (finalState == NORMAL || finalState == SPRING_LOADED) {
+            // Clean-up logic that occurs when recents is no longer in use/visible.
+            reset();
+        }
         boolean isOverlayEnabled = finalState == OVERVIEW || finalState == OVERVIEW_MODAL_TASK;
         setOverlayEnabled(isOverlayEnabled);
         setFreezeViewVisibility(false);
diff --git a/quickstep/src/com/android/quickstep/views/OverviewActionsView.java b/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
index b6bf59f..81c07a6 100644
--- a/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
+++ b/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
@@ -22,6 +22,7 @@
 import android.util.AttributeSet;
 import android.view.View;
 import android.view.View.OnClickListener;
+import android.widget.Button;
 import android.widget.FrameLayout;
 
 import androidx.annotation.IntDef;
@@ -80,7 +81,7 @@
     private static final int INDEX_HIDDEN_FLAGS_ALPHA = 3;
 
     private final MultiValueAlpha mMultiValueAlpha;
-    private View mSplitButton;
+    private Button mSplitButton;
 
     @ActionsHiddenFlags
     private int mHiddenFlags;
@@ -215,6 +216,10 @@
         mDp = dp;
         updateVerticalMargin(SysUINavigationMode.getMode(getContext()));
         requestLayout();
+
+        mSplitButton.setCompoundDrawablesWithIntrinsicBounds(
+                (dp.isLandscape ? R.drawable.ic_split_horizontal : R.drawable.ic_split_vertical),
+                0, 0, 0);
     }
 
     public void setSplitButtonVisible(boolean visible) {
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 3aa8d46..2ad586d 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -107,6 +107,7 @@
 import android.widget.OverScroller;
 import android.widget.Toast;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
 import androidx.core.graphics.ColorUtils;
@@ -181,6 +182,7 @@
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+import java.util.Objects;
 import java.util.function.Consumer;
 
 /**
@@ -822,7 +824,7 @@
     @Override
     public void onTaskIconChanged(String pkg, UserHandle user) {
         for (int i = 0; i < getTaskViewCount(); i++) {
-            TaskView tv = getTaskViewAt(i);
+            TaskView tv = requireTaskViewAt(i);
             Task task = tv.getTask();
             if (task != null && task.key != null && pkg.equals(task.key.getPackageName())
                     && task.key.userId == user.getIdentifier()) {
@@ -1039,6 +1041,17 @@
         }
     }
 
+    public boolean isTaskViewFullyVisible(TaskView tv) {
+        if (showAsGrid()) {
+            int screenStart = mOrientationHandler.getPrimaryScroll(this);
+            int screenEnd = screenStart + mOrientationHandler.getMeasuredSize(this);
+            return isTaskViewFullyWithinBounds(tv, screenStart, screenEnd);
+        } else {
+            // For now, just check if it's the active task
+            return indexOfChild(tv) == getNextPage();
+        }
+    }
+
     @Nullable
     private TaskView getLastGridTaskView() {
         return getLastGridTaskView(getTopRowIdArray(), getBottomRowIdArray());
@@ -1085,6 +1098,15 @@
                 && taskEnd <= end);
     }
 
+    private boolean isTaskViewFullyWithinBounds(TaskView tv, int start, int end) {
+        int taskStart = mOrientationHandler.getChildStart(tv) + (int) tv.getOffsetAdjustment(
+                showAsFullscreen(), showAsGrid());
+        int taskSize = (int) (mOrientationHandler.getMeasuredSize(tv) * tv.getSizeAdjustment(
+                showAsFullscreen()));
+        int taskEnd = taskStart + taskSize;
+        return taskStart >= start && taskEnd <= end;
+    }
+
     /**
      * Returns true if the task is in expected scroll position.
      *
@@ -1104,7 +1126,7 @@
         }
 
         for (int i = 0; i < getTaskViewCount(); i++) {
-            TaskView taskView = getTaskViewAt(i);
+            TaskView taskView = requireTaskViewAt(i);
             int[] taskIds = taskView.getTaskIds();
             if (taskIds[0] == taskId || taskIds[1] == taskId) {
                 return taskView;
@@ -1121,9 +1143,6 @@
             // Reset the running task when leaving overview since it can still have a reference to
             // its thumbnail
             mTmpRunningTasks = null;
-            if (mSplitSelectStateController.isSplitSelectActive()) {
-                cancelSplitSelect(false);
-            }
             // Remove grouped tasks and recycle once we exit overview
             int taskCount = getTaskViewCount();
             for (int i = 0; i < taskCount; i++) {
@@ -1181,7 +1200,7 @@
         if (showAsGrid()) {
             int taskCount = getTaskViewCount();
             for (int i = 0; i < taskCount; i++) {
-                TaskView taskView = getTaskViewAt(i);
+                TaskView taskView = requireTaskViewAt(i);
                 if (isTaskViewVisible(taskView) && taskView.offerTouchToChildren(ev)) {
                     // Keep consuming events to pass to delegate
                     return true;
@@ -1418,7 +1437,7 @@
             if (runningTaskId != -1) {
                 targetPage = indexOfChild(newRunningTaskView);
             } else if (getTaskViewCount() > 0) {
-                targetPage = indexOfChild(getTaskViewAt(0));
+                targetPage = indexOfChild(requireTaskViewAt(0));
             }
         } else if (currentTaskId != -1) {
             currentTaskView = getTaskViewByTaskId(currentTaskId);
@@ -1452,7 +1471,7 @@
 
     private void removeTasksViewsAndClearAllButton() {
         for (int i = getTaskViewCount() - 1; i >= 0; i--) {
-            removeView(getTaskViewAt(i));
+            removeView(requireTaskViewAt(i));
         }
         if (indexOfChild(mClearAllButton) != -1) {
             removeView(mClearAllButton);
@@ -1498,7 +1517,7 @@
 
     public void resetTaskVisuals() {
         for (int i = getTaskViewCount() - 1; i >= 0; i--) {
-            TaskView taskView = getTaskViewAt(i);
+            TaskView taskView = requireTaskViewAt(i);
             if (mIgnoreResetTaskId != taskView.getTaskIds()[0]) {
                 taskView.resetViewTransforms();
                 taskView.setIconScaleAndDim(mTaskIconScaledDown ? 0 : 1);
@@ -1508,6 +1527,16 @@
             }
         }
         if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
+            // resetTaskVisuals is called at the end of dismiss animation which could update
+            // primary and secondary translation of the live tile cut out. We will need to do so
+            // here accordingly.
+            runActionOnRemoteHandles(remoteTargetHandle -> {
+                TaskViewSimulator simulator = remoteTargetHandle.getTaskViewSimulator();
+                simulator.taskPrimaryTranslation.value = 0;
+                simulator.taskSecondaryTranslation.value = 0;
+                simulator.fullScreenProgress.value = 0;
+                simulator.recentsViewScale.value = 1;
+            });
             // Similar to setRunningTaskHidden below, reapply the state before runningTaskView is
             // null.
             if (!mRunningTaskShowScreenshot) {
@@ -1529,7 +1558,7 @@
         mFullscreenProgress = fullscreenProgress;
         int taskCount = getTaskViewCount();
         for (int i = 0; i < taskCount; i++) {
-            getTaskViewAt(i).setFullscreenProgress(mFullscreenProgress);
+            requireTaskViewAt(i).setFullscreenProgress(mFullscreenProgress);
         }
         mClearAllButton.setFullscreenProgress(fullscreenProgress);
 
@@ -1656,7 +1685,7 @@
 
         float accumulatedTranslationX = 0;
         for (int i = 0; i < taskCount; i++) {
-            TaskView taskView = getTaskViewAt(i);
+            TaskView taskView = requireTaskViewAt(i);
             taskView.updateTaskSize();
             taskView.getPrimaryNonGridTranslationProperty().set(taskView, accumulatedTranslationX);
             taskView.getSecondaryNonGridTranslationProperty().set(taskView, 0f);
@@ -1802,7 +1831,7 @@
 
         // Update the task data for the in/visible children
         for (int i = 0; i < getTaskViewCount(); i++) {
-            TaskView taskView = getTaskViewAt(i);
+            TaskView taskView = requireTaskViewAt(i);
             Task task = taskView.getTask();
             int index = indexOfChild(taskView);
             boolean visible;
@@ -1945,7 +1974,7 @@
         }
 
         for (int i = 0; i < getTaskViewCount(); i++) {
-            TaskView taskView = getTaskViewAt(i);
+            TaskView taskView = requireTaskViewAt(i);
             if (taskView.getTaskViewId() == taskViewId) {
                 return taskView;
             }
@@ -2043,7 +2072,7 @@
         int runningIndex = getCurrentPage();
         AnimatorSet as = new AnimatorSet();
         for (int i = 0; i < getTaskViewCount(); i++) {
-            View taskView = getTaskViewAt(i);
+            View taskView = requireTaskViewAt(i);
             if (runningIndex == i && taskView.getAlpha() != 0) {
                 continue;
             }
@@ -2054,7 +2083,7 @@
 
     private void updateChildTaskOrientations() {
         for (int i = 0; i < getTaskViewCount(); i++) {
-            getTaskViewAt(i).setOrientationState(mOrientationState);
+            requireTaskViewAt(i).setOrientationState(mOrientationState);
         }
         TaskMenuView tv = (TaskMenuView) getTopOpenViewWithType(mActivity, TYPE_TASK_MENU);
         if (tv != null) {
@@ -2259,7 +2288,7 @@
             mTaskIconScaledDown = isScaledDown;
             int taskCount = getTaskViewCount();
             for (int i = 0; i < taskCount; i++) {
-                getTaskViewAt(i).setIconScaleAndDim(mTaskIconScaledDown ? 0 : 1);
+                requireTaskViewAt(i).setIconScaleAndDim(mTaskIconScaledDown ? 0 : 1);
             }
         }
     }
@@ -2275,7 +2304,7 @@
         mTaskIconScaledDown = false;
         int taskCount = getTaskViewCount();
         for (int i = 0; i < taskCount; i++) {
-            TaskView taskView = getTaskViewAt(i);
+            TaskView taskView = requireTaskViewAt(i);
             taskView.setIconScaleAnimStartProgress(0f);
             taskView.animateIconScaleAndDimIntoView();
         }
@@ -2347,7 +2376,7 @@
             mTopRowIdSet.clear();
         }
         for (int i = 0; i < taskCount; i++) {
-            TaskView taskView = getTaskViewAt(i);
+            TaskView taskView = requireTaskViewAt(i);
             int taskWidthAndSpacing = taskView.getLayoutParams().width + mPageSpacing;
             // Evenly distribute tasks between rows unless rearranging due to task dismissal, in
             // which case keep tasks in their respective rows. For the running task, don't join
@@ -2412,7 +2441,7 @@
                         if (j == focusedTaskIndex) {
                             continue;
                         }
-                        widthOffset += getTaskViewAt(j).getLayoutParams().width + mPageSpacing;
+                        widthOffset += requireTaskViewAt(j).getLayoutParams().width + mPageSpacing;
                     }
 
                     float currentTaskTranslationX = mIsRtl ? widthOffset : -widthOffset;
@@ -2431,7 +2460,7 @@
                         if (j == focusedTaskIndex) {
                             continue;
                         }
-                        widthOffset += getTaskViewAt(j).getLayoutParams().width + mPageSpacing;
+                        widthOffset += requireTaskViewAt(j).getLayoutParams().width + mPageSpacing;
                     }
 
                     float currentTaskTranslationX = mIsRtl ? widthOffset : -widthOffset;
@@ -2509,7 +2538,7 @@
         }
 
         for (int i = 0; i < taskCount; i++) {
-            TaskView taskView = getTaskViewAt(i);
+            TaskView taskView = requireTaskViewAt(i);
             taskView.setGridTranslationX(gridTranslations[i] - snappedTaskGridTranslationX
                     + snappedTaskNonGridScrollAdjustment);
         }
@@ -2550,7 +2579,7 @@
         mGridProgress = gridProgress;
 
         for (int i = 0; i < taskCount; i++) {
-            getTaskViewAt(i).setGridProgress(gridProgress);
+            requireTaskViewAt(i).setGridProgress(gridProgress);
         }
         mClearAllButton.setGridProgress(gridProgress);
     }
@@ -2713,7 +2742,7 @@
                         mTopRowIdSet.size() > 0 && mTopRowIdSet.size() >= (taskCount - 1) / 2f;
                 // Pick the next focused task from the preferred row.
                 for (int i = 0; i < taskCount; i++) {
-                    TaskView taskView = getTaskViewAt(i);
+                    TaskView taskView = requireTaskViewAt(i);
                     if (taskView == dismissedTaskView) {
                         continue;
                     }
@@ -2816,7 +2845,7 @@
                                 + (taskCount - 1) * halfAdditionalDismissTranslationOffset,
                         END_DISMISS_TRANSLATION_INTERPOLATION_OFFSET, 1);
                 for (int i = 0; i < taskCount; i++) {
-                    TaskView taskView = getTaskViewAt(i);
+                    TaskView taskView = requireTaskViewAt(i);
                     anim.setFloat(taskView, TaskView.GRID_END_TRANSLATION_X, longGridRowWidthDiff,
                             clampToProgress(LINEAR, dismissTranslationInterpolationEnd, 1));
                     dismissTranslationInterpolationEnd = Utilities.boundToRange(
@@ -3132,7 +3161,7 @@
                             // Rebalance tasks in the grid
                             int highestVisibleTaskIndex = getHighestVisibleTaskIndex();
                             if (highestVisibleTaskIndex < Integer.MAX_VALUE) {
-                                TaskView taskView = getTaskViewAt(highestVisibleTaskIndex);
+                                TaskView taskView = requireTaskViewAt(highestVisibleTaskIndex);
 
                                 boolean shouldRebalance;
                                 int screenStart = mOrientationHandler.getPrimaryScroll(
@@ -3185,6 +3214,7 @@
                                 }
                             }
                         }
+                        pageBeginTransition();
                         setCurrentPage(pageToSnapTo);
                         // Update various scroll-dependent UI.
                         dispatchScrollChanged();
@@ -3229,7 +3259,7 @@
         IntArray topArray = new IntArray(mTopRowIdSet.size());
         int taskViewCount = getTaskViewCount();
         for (int i = 0; i < taskViewCount; i++) {
-            int taskViewId = getTaskViewAt(i).getTaskViewId();
+            int taskViewId = requireTaskViewAt(i).getTaskViewId();
             if (mTopRowIdSet.contains(taskViewId)) {
                 topArray.add(taskViewId);
             }
@@ -3248,7 +3278,7 @@
         IntArray bottomArray = new IntArray(bottomRowIdArraySize);
         int taskViewCount = getTaskViewCount();
         for (int i = 0; i < taskViewCount; i++) {
-            int taskViewId = getTaskViewAt(i).getTaskViewId();
+            int taskViewId = requireTaskViewAt(i).getTaskViewId();
             if (!mTopRowIdSet.contains(taskViewId) && taskViewId != mFocusedTaskViewId) {
                 bottomArray.add(taskViewId);
             }
@@ -3318,7 +3348,7 @@
 
         int count = getTaskViewCount();
         for (int i = 0; i < count; i++) {
-            addDismissedTaskAnimations(getTaskViewAt(i), duration, anim);
+            addDismissedTaskAnimations(requireTaskViewAt(i), duration, anim);
         }
 
         mPendingAnimation = anim;
@@ -3441,7 +3471,7 @@
         mContentAlpha = alpha;
         int runningTaskId = getTaskIdsForRunningTaskView()[0];
         for (int i = getTaskViewCount() - 1; i >= 0; i--) {
-            TaskView child = getTaskViewAt(i);
+            TaskView child = requireTaskViewAt(i);
             int[] childTaskIds = child.getTaskIds();
             if (!mRunningTaskTileHidden ||
                     (childTaskIds[0] != runningTaskId && childTaskIds[1] != runningTaskId)) {
@@ -3542,6 +3572,14 @@
         return child instanceof TaskView ? (TaskView) child : null;
     }
 
+    /**
+     * A version of {@link #getTaskViewAt} when the caller is sure about the input index.
+     */
+    @NonNull
+    private TaskView requireTaskViewAt(int index) {
+        return Objects.requireNonNull(getTaskViewAt(index));
+    }
+
     public void setOnEmptyMessageUpdatedListener(OnEmptyMessageUpdatedListener listener) {
         mOnEmptyMessageUpdatedListener = listener;
     }
@@ -3758,7 +3796,7 @@
     protected void setTaskViewsResistanceTranslation(float translation) {
         mTaskViewsSecondaryTranslation = translation;
         for (int i = 0; i < getTaskViewCount(); i++) {
-            TaskView task = getTaskViewAt(i);
+            TaskView task = requireTaskViewAt(i);
             task.getTaskResistanceTranslationProperty().set(task, translation / getScaleY());
         }
         runActionOnRemoteHandles(
@@ -3768,14 +3806,14 @@
 
     private void updateTaskViewsSnapshotRadius() {
         for (int i = 0; i < getTaskViewCount(); i++) {
-            getTaskViewAt(i).updateSnapshotRadius();
+            requireTaskViewAt(i).updateSnapshotRadius();
         }
     }
 
     protected void setTaskViewsPrimarySplitTranslation(float translation) {
         mTaskViewsPrimarySplitTranslation = translation;
         for (int i = 0; i < getTaskViewCount(); i++) {
-            TaskView task = getTaskViewAt(i);
+            TaskView task = requireTaskViewAt(i);
             task.getPrimarySplitTranslationProperty().set(task, translation);
         }
     }
@@ -3783,7 +3821,7 @@
     protected void setTaskViewsSecondarySplitTranslation(float translation) {
         mTaskViewsSecondarySplitTranslation = translation;
         for (int i = 0; i < getTaskViewCount(); i++) {
-            TaskView taskView = getTaskViewAt(i);
+            TaskView taskView = requireTaskViewAt(i);
             if (taskView == mSplitHiddenTaskView) {
                 continue;
             }
@@ -3797,7 +3835,7 @@
     public void applySplitPrimaryScrollOffset() {
         if (isSplitPlaceholderFirstInGrid()) {
             for (int i = 0; i < getTaskViewCount(); i++) {
-                getTaskViewAt(i).setSplitScrollOffsetPrimary(mSplitPlaceholderSize);
+                requireTaskViewAt(i).setSplitScrollOffsetPrimary(mSplitPlaceholderSize);
             }
         } else if (isSplitPlaceholderLastInGrid()) {
             mClearAllButton.setSplitSelectScrollOffsetPrimary(-mSplitPlaceholderSize);
@@ -3839,7 +3877,7 @@
      */
     public void resetSplitPrimaryScrollOffset() {
         for (int i = 0; i < getTaskViewCount(); i++) {
-            getTaskViewAt(i).setSplitScrollOffsetPrimary(0);
+            requireTaskViewAt(i).setSplitScrollOffsetPrimary(0);
         }
         mClearAllButton.setSplitSelectScrollOffsetPrimary(0);
     }
@@ -3919,112 +3957,9 @@
         pendingAnimation.buildAnim().start();
     }
 
-    public PendingAnimation cancelSplitSelect(boolean animate) {
-        SplitSelectStateController splitController = mSplitSelectStateController;
-        @StagePosition int stagePosition = splitController.getActiveSplitStagePosition();
-        Rect initialBounds = splitController.getInitialBounds();
-        splitController.resetState();
-        int duration = mActivity.getStateManager().getState().getTransitionDuration(getContext());
-        PendingAnimation pendingAnim = new PendingAnimation(duration);
-        mSplitToast.cancel();
-        mSplitUnsupportedToast.cancel();
-        if (!animate) {
-            resetFromSplitSelectionState();
-            return pendingAnim;
-        }
-
-        addViewInLayout(mSplitHiddenTaskView, mSplitHiddenTaskViewIndex,
-                mSplitHiddenTaskView.getLayoutParams());
-        mSplitHiddenTaskView.setAlpha(0);
-        int[] oldScroll = new int[getChildCount()];
-        getPageScrolls(oldScroll, false,
-                view -> view.getVisibility() != GONE && view != mSplitHiddenTaskView);
-
-        int[] newScroll = new int[getChildCount()];
-        getPageScrolls(newScroll, false, SIMPLE_SCROLL_LOGIC);
-
-        boolean needsCurveUpdates = false;
-        for (int i = mSplitHiddenTaskViewIndex; i >= 0; i--) {
-            View child = getChildAt(i);
-            if (child == mSplitHiddenTaskView) {
-                TaskView taskView = (TaskView) child;
-
-                int dir = mOrientationHandler.getSplitTaskViewDismissDirection(stagePosition,
-                        mActivity.getDeviceProfile());
-                FloatProperty<TaskView> dismissingTaskViewTranslate;
-                Rect hiddenBounds = new Rect(taskView.getLeft(), taskView.getTop(),
-                        taskView.getRight(), taskView.getBottom());
-                int distanceDelta = 0;
-                if (dir == PagedOrientationHandler.SPLIT_TRANSLATE_SECONDARY_NEGATIVE) {
-                    dismissingTaskViewTranslate = taskView
-                            .getSecondaryDissmissTranslationProperty();
-                    distanceDelta = initialBounds.top - hiddenBounds.top;
-                    taskView.layout(initialBounds.left, hiddenBounds.top, initialBounds.right,
-                            hiddenBounds.bottom);
-                } else {
-                    dismissingTaskViewTranslate = taskView
-                            .getPrimaryDismissTranslationProperty();
-                    distanceDelta = initialBounds.left - hiddenBounds.left;
-                    taskView.layout(hiddenBounds.left, initialBounds.top, hiddenBounds.right,
-                            initialBounds.bottom);
-                    if (dir == PagedOrientationHandler.SPLIT_TRANSLATE_PRIMARY_POSITIVE) {
-                        distanceDelta *= -1;
-                    }
-                }
-                pendingAnim.add(ObjectAnimator.ofFloat(mSplitHiddenTaskView,
-                        dismissingTaskViewTranslate,
-                        distanceDelta));
-                pendingAnim.add(ObjectAnimator.ofFloat(mSplitHiddenTaskView, ALPHA, 1));
-            } else {
-                // If insertion is on last index (furthest from clear all), we directly add the view
-                // else we translate all views to the right of insertion index further right,
-                // ignore views to left
-                if (showAsGrid()) {
-                    // TODO(b/186800707) handle more elegantly for grid
-                    continue;
-                }
-                int scrollDiff = newScroll[i] - oldScroll[i];
-                if (scrollDiff != 0) {
-                    FloatProperty translationProperty = child instanceof TaskView
-                            ? ((TaskView) child).getPrimaryDismissTranslationProperty()
-                            : mOrientationHandler.getPrimaryViewTranslate();
-
-                    ResourceProvider rp = DynamicResource.provider(mActivity);
-                    SpringProperty sp = new SpringProperty(SpringProperty.FLAG_CAN_SPRING_ON_END)
-                            .setDampingRatio(
-                                    rp.getFloat(R.dimen.dismiss_task_trans_x_damping_ratio))
-                            .setStiffness(rp.getFloat(R.dimen.dismiss_task_trans_x_stiffness));
-                    pendingAnim.add(ObjectAnimator.ofFloat(child, translationProperty, scrollDiff)
-                            .setDuration(duration), ACCEL, sp);
-                    needsCurveUpdates = true;
-                }
-            }
-        }
-
-        if (needsCurveUpdates) {
-            pendingAnim.addOnFrameCallback(this::updateCurveProperties);
-        }
-
-        pendingAnim.addListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                // TODO(b/186800707) Figure out how to undo for grid view
-                //  Need to handle cases where dismissed task is
-                //  * Top Row
-                //  * Bottom Row
-                //  * Focused Task
-                updateGridProperties();
-                resetFromSplitSelectionState();
-                updateScrollSynchronously();
-            }
-        });
-
-        return pendingAnim;
-    }
-
     /** TODO(b/181707736) More gracefully handle exiting split selection state */
     private void resetFromSplitSelectionState() {
-        if (!showAsGrid()) {
+        if (!mActivity.getDeviceProfile().overviewShowAsGrid) {
             int pageToSnapTo = mCurrentPage;
             if (mSplitHiddenTaskViewIndex <= pageToSnapTo) {
                 pageToSnapTo += 1;
@@ -4066,8 +4001,8 @@
         mTaskViewDeadZoneRect.setEmpty();
         int count = getTaskViewCount();
         if (count > 0) {
-            final View taskView = getTaskViewAt(0);
-            getTaskViewAt(count - 1).getHitRect(mTaskViewDeadZoneRect);
+            final View taskView = requireTaskViewAt(0);
+            requireTaskViewAt(count - 1).getHitRect(mTaskViewDeadZoneRect);
             mTaskViewDeadZoneRect.union(taskView.getLeft(), taskView.getTop(), taskView.getRight(),
                     taskView.getBottom());
         }
@@ -4548,7 +4483,7 @@
 
         final int taskCount = getTaskViewCount();
         for (int i = 0; i < taskCount; i++) {
-            TaskView taskView = getTaskViewAt(i);
+            TaskView taskView = requireTaskViewAt(i);
             float scrollDiff = taskView.getScrollAdjustment(showAsFullscreen, showAsGrid);
             int pageScroll = newPageScrolls[i] + (int) scrollDiff;
             if ((mIsRtl && pageScroll < clearAllScroll + clearAllWidth)
@@ -4716,7 +4651,7 @@
         int overlayEnabledPage = mOverlayEnabled ? getNextPage() : -1;
         int taskCount = getTaskViewCount();
         for (int i = 0; i < taskCount; i++) {
-            getTaskViewAt(i).setOverlayEnabled(i == overlayEnabledPage);
+            requireTaskViewAt(i).setOverlayEnabled(i == overlayEnabledPage);
         }
     }
 
@@ -4870,7 +4805,7 @@
         mColorTint = tintAmount;
 
         for (int i = 0; i < getTaskViewCount(); i++) {
-            getTaskViewAt(i).setColorTint(mColorTint, mTintingColor);
+            requireTaskViewAt(i).setColorTint(mColorTint, mTintingColor);
         }
 
         Drawable scrimBg = mActivity.getScrimView().getBackground();
@@ -4939,6 +4874,62 @@
     }
 
     @Override
+    public boolean scrollLeft() {
+        if (!showAsGrid()) {
+            return super.scrollLeft();
+        }
+
+        int targetPage = getNextPage();
+        if (targetPage >= 0) {
+            // Find the next page that is not fully visible.
+            TaskView taskView = getTaskViewAt(targetPage);
+            while ((taskView == null || isTaskViewFullyVisible(taskView)) && targetPage - 1 >= 0) {
+                taskView = getTaskViewAt(--targetPage);
+            }
+            // Target a scroll where targetPage is on left of screen but still fully visible.
+            int lastTaskEnd = (mIsRtl
+                    ? mLastComputedGridSize.left
+                    : mLastComputedGridSize.right)
+                    + (mIsRtl ? mPageSpacing : -mPageSpacing);
+            int normalTaskEnd = mIsRtl
+                    ? mLastComputedGridTaskSize.left
+                    : mLastComputedGridTaskSize.right;
+            int targetScroll = getScrollForPage(targetPage) + normalTaskEnd - lastTaskEnd;
+            // Find a page that is close to targetScroll while not over it.
+            while (targetPage - 1 >= 0
+                    && (mIsRtl
+                    ? getScrollForPage(targetPage - 1) < targetScroll
+                    : getScrollForPage(targetPage - 1) > targetScroll)) {
+                targetPage--;
+            }
+            snapToPage(targetPage);
+            return true;
+        }
+
+        return mAllowOverScroll;
+    }
+
+    @Override
+    public boolean scrollRight() {
+        if (!showAsGrid()) {
+            return super.scrollRight();
+        }
+
+        int targetPage = getNextPage();
+        if (targetPage < getChildCount()) {
+            // Find the next page that is not fully visible.
+            TaskView taskView = getTaskViewAt(targetPage);
+            while ((taskView != null && isTaskViewFullyVisible(taskView))
+                    && targetPage + 1 < getChildCount()) {
+                taskView = getTaskViewAt(++targetPage);
+            }
+            snapToPage(targetPage);
+            return true;
+        }
+        return mAllowOverScroll;
+    }
+
+    @Override
     protected void onScrollChanged(int l, int t, int oldl, int oldt) {
         super.onScrollChanged(l, t, oldl, oldt);
         dispatchScrollChanged();
diff --git a/quickstep/src/com/android/quickstep/views/TaskView.java b/quickstep/src/com/android/quickstep/views/TaskView.java
index e8077cf..467d225 100644
--- a/quickstep/src/com/android/quickstep/views/TaskView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskView.java
@@ -599,7 +599,9 @@
         if (confirmSecondSplitSelectApp()) {
             return;
         }
-        if (ENABLE_QUICKSTEP_LIVE_TILE.get() && isRunningTask()) {
+        RecentsView recentsView = getRecentsView();
+        RemoteTargetHandle[] remoteTargetHandles = recentsView.mRemoteTargetHandles;
+        if (ENABLE_QUICKSTEP_LIVE_TILE.get() && isRunningTask() && remoteTargetHandles != null) {
             if (!mIsClickableAsLiveTile) {
                 return;
             }
@@ -612,9 +614,7 @@
             }
 
             mIsClickableAsLiveTile = false;
-            RecentsView recentsView = getRecentsView();
             RemoteAnimationTargets targets;
-            RemoteTargetHandle[] remoteTargetHandles = recentsView.mRemoteTargetHandles;
             if (remoteTargetHandles.length == 1) {
                 targets = remoteTargetHandles[0].getTransformParams().getTargetSet();
             } else {
@@ -912,7 +912,7 @@
         return deviceProfile.overviewShowAsGrid && !isFocusedTask();
     }
 
-    private void setIconAndDimTransitionProgress(float progress, boolean invert) {
+    protected void setIconAndDimTransitionProgress(float progress, boolean invert) {
         if (invert) {
             progress = 1 - progress;
         }
diff --git a/quickstep/tests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java b/quickstep/tests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java
new file mode 100644
index 0000000..ba1a60d
--- /dev/null
+++ b/quickstep/tests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java
@@ -0,0 +1,159 @@
+package com.android.launcher3.taskbar;
+
+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;
+import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_IME_SWITCH;
+import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_RECENTS;
+import static com.android.launcher3.taskbar.TaskbarNavButtonController.SCREEN_PIN_LONG_PRESS_THRESHOLD;
+import static com.android.quickstep.OverviewCommandHelper.TYPE_HOME;
+import static com.android.quickstep.OverviewCommandHelper.TYPE_TOGGLE;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_SCREEN_PINNING;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.os.Handler;
+
+import androidx.test.runner.AndroidJUnit4;
+
+import com.android.quickstep.OverviewCommandHelper;
+import com.android.quickstep.SystemUiProxy;
+import com.android.quickstep.TouchInteractionService;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+@RunWith(AndroidJUnit4.class)
+public class TaskbarNavButtonControllerTest {
+
+    private final static int DISPLAY_ID = 2;
+
+    @Mock
+    SystemUiProxy mockSystemUiProxy;
+    @Mock
+    TouchInteractionService mockService;
+    @Mock
+    OverviewCommandHelper mockCommandHelper;
+    @Mock
+    Handler mockHandler;
+
+    private TaskbarNavButtonController mNavButtonController;
+
+    @Before
+    public void setup() {
+        MockitoAnnotations.initMocks(this);
+        when(mockService.getDisplayId()).thenReturn(DISPLAY_ID);
+        when(mockService.getOverviewCommandHelper()).thenReturn(mockCommandHelper);
+        mNavButtonController = new TaskbarNavButtonController(mockService,
+                mockSystemUiProxy, mockHandler);
+    }
+
+    @Test
+    public void testPressBack() {
+        mNavButtonController.onButtonClick(BUTTON_BACK);
+        verify(mockSystemUiProxy, times(1)).onBackPressed();
+    }
+
+    @Test
+    public void testPressImeSwitcher() {
+        mNavButtonController.onButtonClick(BUTTON_IME_SWITCH);
+        verify(mockSystemUiProxy, times(1)).onImeSwitcherPressed();
+    }
+
+    @Test
+    public void testPressA11yShortClick() {
+        mNavButtonController.onButtonClick(BUTTON_A11Y);
+        verify(mockSystemUiProxy, times(1))
+                .notifyAccessibilityButtonClicked(DISPLAY_ID);
+    }
+
+    @Test
+    public void testPressA11yLongClick() {
+        mNavButtonController.onButtonLongClick(BUTTON_A11Y);
+        verify(mockSystemUiProxy, times(1)).notifyAccessibilityButtonLongClicked();
+    }
+
+    @Test
+    public void testLongPressHome() {
+        mNavButtonController.onButtonLongClick(BUTTON_HOME);
+        verify(mockSystemUiProxy, times(1)).startAssistant(any());
+    }
+
+    @Test
+    public void testPressHome() {
+        mNavButtonController.onButtonClick(BUTTON_HOME);
+        verify(mockCommandHelper, times(1)).addCommand(TYPE_HOME);
+    }
+
+    @Test
+    public void testPressRecents() {
+        mNavButtonController.onButtonClick(BUTTON_RECENTS);
+        verify(mockCommandHelper, times(1)).addCommand(TYPE_TOGGLE);
+    }
+
+    @Test
+    public void testPressRecentsWithScreenPinned() {
+        mNavButtonController.updateSysuiFlags(SYSUI_STATE_SCREEN_PINNING);
+        mNavButtonController.onButtonClick(BUTTON_RECENTS);
+        verify(mockCommandHelper, times(0)).addCommand(TYPE_TOGGLE);
+    }
+
+    @Test
+    public void testLongPressBackRecentsNotPinned() {
+        mNavButtonController.onButtonLongClick(BUTTON_RECENTS);
+        mNavButtonController.onButtonLongClick(BUTTON_BACK);
+        verify(mockSystemUiProxy, times(0)).stopScreenPinning();
+    }
+
+    @Test
+    public void testLongPressBackRecentsPinned() {
+        mNavButtonController.updateSysuiFlags(SYSUI_STATE_SCREEN_PINNING);
+        mNavButtonController.onButtonLongClick(BUTTON_RECENTS);
+        mNavButtonController.onButtonLongClick(BUTTON_BACK);
+        verify(mockSystemUiProxy, times(1)).stopScreenPinning();
+    }
+
+    @Test
+    public void testLongPressBackRecentsTooLongPinned() {
+        mNavButtonController.updateSysuiFlags(SYSUI_STATE_SCREEN_PINNING);
+        mNavButtonController.onButtonLongClick(BUTTON_RECENTS);
+        try {
+            Thread.sleep(SCREEN_PIN_LONG_PRESS_THRESHOLD + 5);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+        mNavButtonController.onButtonLongClick(BUTTON_BACK);
+        verify(mockSystemUiProxy, times(0)).stopScreenPinning();
+    }
+
+    @Test
+    public void testLongPressBackRecentsMultipleAttemptPinned() {
+        mNavButtonController.updateSysuiFlags(SYSUI_STATE_SCREEN_PINNING);
+        mNavButtonController.onButtonLongClick(BUTTON_RECENTS);
+        try {
+            Thread.sleep(SCREEN_PIN_LONG_PRESS_THRESHOLD + 5);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+        mNavButtonController.onButtonLongClick(BUTTON_BACK);
+        verify(mockSystemUiProxy, times(0)).stopScreenPinning();
+
+        // Try again w/in threshold
+        mNavButtonController.onButtonLongClick(BUTTON_RECENTS);
+        mNavButtonController.onButtonLongClick(BUTTON_BACK);
+        verify(mockSystemUiProxy, times(1)).stopScreenPinning();
+    }
+
+    @Test
+    public void testLongPressHomeScreenPinned() {
+        mNavButtonController.updateSysuiFlags(SYSUI_STATE_SCREEN_PINNING);
+        mNavButtonController.onButtonLongClick(BUTTON_HOME);
+        verify(mockSystemUiProxy, times(0)).startAssistant(any());
+    }
+}
diff --git a/res/drawable/ic_split_horizontal.xml b/res/drawable/ic_split_horizontal.xml
new file mode 100644
index 0000000..ee710d0
--- /dev/null
+++ b/res/drawable/ic_split_horizontal.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="20dp"
+    android:height="16dp"
+    android:viewportWidth="20"
+    android:viewportHeight="16">
+  <path
+      android:pathData="M18,14L13,14L13,2L18,2L18,14ZM20,14L20,2C20,0.9 19.1,-0 18,-0L13,-0C11.9,-0 11,0.9 11,2L11,14C11,15.1 11.9,16 13,16L18,16C19.1,16 20,15.1 20,14ZM7,14L2,14L2,2L7,2L7,14ZM9,14L9,2C9,0.9 8.1,-0 7,-0L2,-0C0.9,-0 -0,0.9 -0,2L-0,14C-0,15.1 0.9,16 2,16L7,16C8.1,16 9,15.1 9,14Z"
+      android:fillColor="#000000"/>
+</vector>
diff --git a/res/drawable/ic_split_left.xml b/res/drawable/ic_split_left.xml
new file mode 100644
index 0000000..fc9f699
--- /dev/null
+++ b/res/drawable/ic_split_left.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="20dp"
+    android:height="16dp"
+    android:viewportWidth="20"
+    android:viewportHeight="16">
+  <path
+      android:pathData="M-0,2L-0,14C-0,15.1 0.9,16 2,16L7,16C8.1,16 9,15.1 9,14L9,2C9,0.9 8.1,-0 7,-0L2,-0C0.9,-0 -0,0.9 -0,2ZM13,2L18,2L18,14L13,14L13,2ZM11,2L11,14C11,15.1 11.9,16 13,16L18,16C19.1,16 20,15.1 20,14L20,2C20,0.9 19.1,-0 18,-0L13,-0C11.9,-0 11,0.9 11,2Z"
+      android:fillColor="#000000"/>
+</vector>
diff --git a/res/drawable/ic_split_right.xml b/res/drawable/ic_split_right.xml
new file mode 100644
index 0000000..cc15622
--- /dev/null
+++ b/res/drawable/ic_split_right.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="20dp"
+    android:height="16dp"
+    android:viewportWidth="20"
+    android:viewportHeight="16">
+  <path
+      android:pathData="M20,14L20,2C20,0.9 19.1,-0 18,-0L13,-0C11.9,-0 11,0.9 11,2L11,14C11,15.1 11.9,16 13,16L18,16C19.1,16 20,15.1 20,14ZM7,14L2,14L2,2L7,2L7,14ZM9,14L9,2C9,0.9 8.1,-0 7,-0L2,-0C0.9,-0 -0,0.9 -0,2L-0,14C-0,15.1 0.9,16 2,16L7,16C8.1,16 9,15.1 9,14Z"
+      android:fillColor="#000000"/>
+</vector>
diff --git a/res/drawable/ic_split_top.xml b/res/drawable/ic_split_top.xml
new file mode 100644
index 0000000..f8c15bd
--- /dev/null
+++ b/res/drawable/ic_split_top.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="16dp"
+    android:height="20dp"
+    android:viewportWidth="16"
+    android:viewportHeight="20">
+  <path
+      android:pathData="M14,0H2C0.9,0 0,0.9 0,2V7C0,8.1 0.9,9 2,9H14C15.1,9 16,8.1 16,7V2C16,0.9 15.1,0 14,0ZM14,13V18H2V13H14ZM14,11H2C0.9,11 0,11.9 0,13V18C0,19.1 0.9,20 2,20H14C15.1,20 16,19.1 16,18V13C16,11.9 15.1,11 14,11Z"
+      android:fillColor="#000000"/>
+</vector>
diff --git a/res/drawable/ic_split_vertical.xml b/res/drawable/ic_split_vertical.xml
new file mode 100644
index 0000000..9bc9785
--- /dev/null
+++ b/res/drawable/ic_split_vertical.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="M18,4V9H6V4H18ZM18,2H6C4.9,2 4,2.9 4,4V9C4,10.1 4.9,11 6,11H18C19.1,11 20,10.1 20,9V4C20,2.9 19.1,2 18,2ZM18,15V20H6V15H18ZM18,13H6C4.9,13 4,13.9 4,15V20C4,21.1 4.9,22 6,22H18C19.1,22 20,21.1 20,20V15C20,13.9 19.1,13 18,13Z"
+      android:fillColor="#000000"/>
+</vector>
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index ea6ddbe..878ef3f 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -329,6 +329,9 @@
     <!-- Size of the maximum radius for the enforced rounded rectangles. -->
     <dimen name="enforced_rounded_corner_max_radius">16dp</dimen>
 
+<!-- Base Swipe Detector, speed in dp/s -->
+    <dimen name="base_swift_detector_fling_release_velocity">1dp</dimen>
+
 <!-- Overview placeholder to compile in Launcher3 without Quickstep -->
     <dimen name="task_thumbnail_icon_size">0dp</dimen>
     <dimen name="task_thumbnail_icon_drawable_size">0dp</dimen>
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index 4ee192a..5d41741 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -50,7 +50,7 @@
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
 
-import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
+import com.android.launcher3.accessibility.BaseAccessibilityDelegate;
 import com.android.launcher3.dot.DotInfo;
 import com.android.launcher3.dragndrop.DraggableView;
 import com.android.launcher3.folder.FolderIcon;
@@ -304,7 +304,7 @@
 
     @Override
     public void setAccessibilityDelegate(AccessibilityDelegate delegate) {
-        if (delegate instanceof LauncherAccessibilityDelegate) {
+        if (delegate instanceof BaseAccessibilityDelegate) {
             super.setAccessibilityDelegate(delegate);
         } else {
             // NO-OP
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 5e67bf0..9fad2eb 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -814,15 +814,23 @@
         Point padding = getTotalWorkspacePadding();
 
         int numColumns = isTwoPanels ? inv.numColumns * 2 : inv.numColumns;
-        int cellLayoutTotalPadding =
-                isTwoPanels ? 4 * cellLayoutPaddingLeftRightPx : 2 * cellLayoutPaddingLeftRightPx;
-        int screenWidthPx = availableWidthPx - padding.x - cellLayoutTotalPadding;
+        int screenWidthPx = getWorkspaceWidth(padding);
         result.x = calculateCellWidth(screenWidthPx, cellLayoutBorderSpacePx.x, numColumns);
         result.y = calculateCellHeight(availableHeightPx - padding.y
                 - cellLayoutBottomPaddingPx, cellLayoutBorderSpacePx.y, inv.numRows);
         return result;
     }
 
+    public int getWorkspaceWidth() {
+        return getWorkspaceWidth(getTotalWorkspacePadding());
+    }
+
+    public int getWorkspaceWidth(Point workspacePadding) {
+        int cellLayoutTotalPadding =
+                isTwoPanels ? 4 * cellLayoutPaddingLeftRightPx : 2 * cellLayoutPaddingLeftRightPx;
+        return availableWidthPx - workspacePadding.x - cellLayoutTotalPadding;
+    }
+
     public Point getTotalWorkspacePadding() {
         updateWorkspacePadding();
         return new Point(workspacePadding.left + workspacePadding.right,
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index d844b87..2ebedf7 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -286,7 +286,11 @@
         mExtraAttrs = closestProfile.extraAttrs;
 
         iconSize = displayOption.iconSizes;
-        iconBitmapSize = ResourceUtils.pxFromDp(iconSize[INDEX_DEFAULT], metrics);
+        float maxIconSize = iconSize[0];
+        for (int i = 1; i < iconSize.length; i++) {
+            maxIconSize = Math.max(maxIconSize, iconSize[i]);
+        }
+        iconBitmapSize = ResourceUtils.pxFromDp(maxIconSize, metrics);
         fillResIconDpi = getLauncherIconDensity(iconBitmapSize);
 
         iconTextSize = displayOption.textSizes;
@@ -555,13 +559,10 @@
         }
         out.multiply(1.0f / weights);
 
-        // Since the bitmaps are persisted, ensure that the default bitmap size is same as
+        // Since the bitmaps are persisted, ensure that all bitmap sizes are not larger than
         // predefined size to avoid cache invalidation
-        out.iconSizes[INDEX_DEFAULT] =
-                closestPoint.iconSizes[INDEX_DEFAULT];
-        for (int i = INDEX_DEFAULT + 1; i < COUNT_SIZES; i++) {
-            out.iconSizes[i] = Math.min(out.iconSizes[i],
-                    out.iconSizes[INDEX_DEFAULT]);
+        for (int i = INDEX_DEFAULT; i < COUNT_SIZES; i++) {
+            out.iconSizes[i] = Math.min(out.iconSizes[i], closestPoint.iconSizes[i]);
         }
 
         return out;
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 0656125..ab9b980 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -115,8 +115,8 @@
 import androidx.annotation.VisibleForTesting;
 
 import com.android.launcher3.DropTarget.DragObject;
+import com.android.launcher3.accessibility.BaseAccessibilityDelegate.LauncherAction;
 import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
-import com.android.launcher3.accessibility.LauncherAccessibilityDelegate.LauncherAction;
 import com.android.launcher3.allapps.AllAppsContainerView;
 import com.android.launcher3.allapps.AllAppsStore;
 import com.android.launcher3.allapps.AllAppsTransitionController;
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index 1ce7ebe..2c14f07 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -1749,20 +1749,23 @@
     public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
         super.onInitializeAccessibilityNodeInfo(info);
         final boolean pagesFlipped = isPageOrderFlipped();
-        int offset = (mAllowOverScroll ? 0 : 1);
-        info.setScrollable(getPageCount() > offset);
-        if (getCurrentPage() < getPageCount() - offset) {
+        info.setScrollable(getPageCount() > 0);
+        int primaryScroll = mOrientationHandler.getPrimaryScroll(this);
+        if (getCurrentPage() < getPageCount() - getPanelCount()
+                || (getCurrentPage() == getPageCount() - getPanelCount()
+                && primaryScroll != getScrollForPage(getPageCount() - getPanelCount()))) {
             info.addAction(pagesFlipped ?
-                AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD
-                : AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD);
+                    AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD
+                    : AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD);
             info.addAction(mIsRtl ?
                 AccessibilityNodeInfo.AccessibilityAction.ACTION_PAGE_LEFT
                 : AccessibilityNodeInfo.AccessibilityAction.ACTION_PAGE_RIGHT);
         }
-        if (getCurrentPage() >= offset) {
+        if (getCurrentPage() > 0
+                || (getCurrentPage() == 0 && primaryScroll != getScrollForPage(0))) {
             info.addAction(pagesFlipped ?
-                AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD
-                : AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD);
+                    AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD
+                    : AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD);
             info.addAction(mIsRtl ?
                 AccessibilityNodeInfo.AccessibilityAction.ACTION_PAGE_RIGHT
                 : AccessibilityNodeInfo.AccessibilityAction.ACTION_PAGE_LEFT);
@@ -1807,16 +1810,16 @@
             } break;
             case android.R.id.accessibilityActionPageRight: {
                 if (!mIsRtl) {
-                  return scrollRight();
+                    return scrollRight();
                 } else {
-                  return scrollLeft();
+                    return scrollLeft();
                 }
             }
             case android.R.id.accessibilityActionPageLeft: {
                 if (!mIsRtl) {
-                  return scrollLeft();
+                    return scrollLeft();
                 } else {
-                  return scrollRight();
+                    return scrollRight();
                 }
             }
         }
diff --git a/src/com/android/launcher3/accessibility/BaseAccessibilityDelegate.java b/src/com/android/launcher3/accessibility/BaseAccessibilityDelegate.java
new file mode 100644
index 0000000..14b2431
--- /dev/null
+++ b/src/com/android/launcher3/accessibility/BaseAccessibilityDelegate.java
@@ -0,0 +1,192 @@
+/*
+ * Copyright (C) 2021 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.accessibility;
+
+import android.content.Context;
+import android.graphics.Rect;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.util.SparseArray;
+import android.view.View;
+import android.view.accessibility.AccessibilityNodeInfo;
+
+import com.android.launcher3.DropTarget;
+import com.android.launcher3.LauncherSettings;
+import com.android.launcher3.dragndrop.DragController;
+import com.android.launcher3.dragndrop.DragOptions;
+import com.android.launcher3.model.data.FolderInfo;
+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.popup.PopupContainerWithArrow;
+import com.android.launcher3.util.Thunk;
+import com.android.launcher3.views.ActivityContext;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public abstract class BaseAccessibilityDelegate<T extends Context & ActivityContext>
+        extends View.AccessibilityDelegate implements DragController.DragListener {
+
+    public enum DragType {
+        ICON,
+        FOLDER,
+        WIDGET
+    }
+
+    public static class DragInfo {
+        public DragType dragType;
+        public ItemInfo info;
+        public View item;
+    }
+
+    protected final SparseArray<LauncherAction> mActions = new SparseArray<>();
+    protected final T mContext;
+
+    protected DragInfo mDragInfo = null;
+
+    protected BaseAccessibilityDelegate(T context) {
+        mContext = context;
+    }
+
+    @Override
+    public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
+        super.onInitializeAccessibilityNodeInfo(host, info);
+        if (host.getTag() instanceof ItemInfo) {
+            ItemInfo item = (ItemInfo) host.getTag();
+
+            List<LauncherAction> actions = new ArrayList<>();
+            getSupportedActions(host, item, actions);
+            actions.forEach(la -> info.addAction(la.accessibilityAction));
+
+            if (!itemSupportsLongClick(host, item)) {
+                info.setLongClickable(false);
+                info.removeAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_LONG_CLICK);
+            }
+        }
+    }
+
+    /**
+     * Adds all the accessibility actions that can be handled.
+     */
+    protected abstract void getSupportedActions(View host, ItemInfo item, List<LauncherAction> out);
+
+    private boolean itemSupportsLongClick(View host, ItemInfo info) {
+        return PopupContainerWithArrow.canShow(host, info);
+    }
+
+    protected boolean itemSupportsAccessibleDrag(ItemInfo item) {
+        if (item instanceof WorkspaceItemInfo) {
+            // Support the action unless the item is in a context menu.
+            return item.screenId >= 0
+                    && item.container != LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION;
+        }
+        return (item instanceof LauncherAppWidgetInfo)
+                || (item instanceof FolderInfo);
+    }
+
+    @Override
+    public boolean performAccessibilityAction(View host, int action, Bundle args) {
+        if ((host.getTag() instanceof ItemInfo)
+                && performAction(host, (ItemInfo) host.getTag(), action, false)) {
+            return true;
+        }
+        return super.performAccessibilityAction(host, action, args);
+    }
+
+    protected abstract boolean performAction(
+            View host, ItemInfo item, int action, boolean fromKeyboard);
+
+    @Thunk
+    protected void announceConfirmation(String confirmation) {
+        mContext.getDragLayer().announceForAccessibility(confirmation);
+
+    }
+
+    public boolean isInAccessibleDrag() {
+        return mDragInfo != null;
+    }
+
+    public DragInfo getDragInfo() {
+        return mDragInfo;
+    }
+
+    /**
+     * @param clickedTarget the actual view that was clicked
+     * @param dropLocation relative to {@param clickedTarget}. If provided, its center is used
+     * as the actual drop location otherwise the views center is used.
+     */
+    public void handleAccessibleDrop(View clickedTarget, Rect dropLocation,
+            String confirmation) {
+        if (!isInAccessibleDrag()) return;
+
+        int[] loc = new int[2];
+        if (dropLocation == null) {
+            loc[0] = clickedTarget.getWidth() / 2;
+            loc[1] = clickedTarget.getHeight() / 2;
+        } else {
+            loc[0] = dropLocation.centerX();
+            loc[1] = dropLocation.centerY();
+        }
+
+        mContext.getDragLayer().getDescendantCoordRelativeToSelf(clickedTarget, loc);
+        mContext.getDragController().completeAccessibleDrag(loc);
+
+        if (!TextUtils.isEmpty(confirmation)) {
+            announceConfirmation(confirmation);
+        }
+    }
+
+    protected abstract boolean beginAccessibleDrag(View item, ItemInfo info, boolean fromKeyboard);
+
+
+    @Override
+    public void onDragEnd() {
+        mContext.getDragController().removeDragListener(this);
+        mDragInfo = null;
+    }
+
+    @Override
+    public void onDragStart(DropTarget.DragObject dragObject, DragOptions options) {
+        // No-op
+    }
+
+    public class LauncherAction {
+        public final int keyCode;
+        public final AccessibilityNodeInfo.AccessibilityAction accessibilityAction;
+
+        private final BaseAccessibilityDelegate<T> mDelegate;
+
+        public LauncherAction(int id, int labelRes, int keyCode) {
+            this.keyCode = keyCode;
+            accessibilityAction = new AccessibilityNodeInfo.AccessibilityAction(
+                    id, mContext.getString(labelRes));
+            mDelegate = BaseAccessibilityDelegate.this;
+        }
+
+        /**
+         * Invokes the action for the provided host
+         */
+        public boolean invokeFromKeyboard(View host) {
+            if (host != null && host.getTag() instanceof ItemInfo) {
+                return mDelegate.performAction(
+                        host, (ItemInfo) host.getTag(), accessibilityAction.getId(), true);
+            } else {
+                return false;
+            }
+        }
+    }
+}
diff --git a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
index 157df5d..18c05eb 100644
--- a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
+++ b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
@@ -10,27 +10,19 @@
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.RectF;
-import android.os.Bundle;
 import android.os.Handler;
-import android.text.TextUtils;
 import android.util.Log;
-import android.util.SparseArray;
 import android.view.KeyEvent;
 import android.view.View;
-import android.view.View.AccessibilityDelegate;
-import android.view.accessibility.AccessibilityNodeInfo;
-import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
 
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.ButtonDropTarget;
 import com.android.launcher3.CellLayout;
-import com.android.launcher3.DropTarget.DragObject;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.PendingAddItemInfo;
 import com.android.launcher3.R;
 import com.android.launcher3.Workspace;
-import com.android.launcher3.dragndrop.DragController.DragListener;
 import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.dragndrop.DragView;
 import com.android.launcher3.folder.Folder;
@@ -57,7 +49,7 @@
 import java.util.Collections;
 import java.util.List;
 
-public class LauncherAccessibilityDelegate extends AccessibilityDelegate implements DragListener {
+public class LauncherAccessibilityDelegate extends BaseAccessibilityDelegate<Launcher> {
 
     private static final String TAG = "LauncherAccessibilityDelegate";
 
@@ -73,25 +65,8 @@
     public static final int DEEP_SHORTCUTS = R.id.action_deep_shortcuts;
     public static final int SHORTCUTS_AND_NOTIFICATIONS = R.id.action_shortcuts_and_notifications;
 
-    public enum DragType {
-        ICON,
-        FOLDER,
-        WIDGET
-    }
-
-    public static class DragInfo {
-        public DragType dragType;
-        public ItemInfo info;
-        public View item;
-    }
-
-    protected final SparseArray<LauncherAction> mActions = new SparseArray<>();
-    protected final Launcher mLauncher;
-
-    private DragInfo mDragInfo = null;
-
     public LauncherAccessibilityDelegate(Launcher launcher) {
-        mLauncher = launcher;
+        super(launcher);
 
         mActions.put(REMOVE, new LauncherAction(
                 REMOVE, R.string.remove_drop_target_label, KeyEvent.KEYCODE_X));
@@ -116,25 +91,6 @@
     }
 
     @Override
-    public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
-        super.onInitializeAccessibilityNodeInfo(host, info);
-        if (host.getTag() instanceof ItemInfo) {
-            ItemInfo item = (ItemInfo) host.getTag();
-
-            List<LauncherAction> actions = new ArrayList<>();
-            getSupportedActions(host, item, actions);
-            actions.forEach(la -> info.addAction(la.accessibilityAction));
-
-            if (!itemSupportsLongClick(host, item)) {
-                info.setLongClickable(false);
-                info.removeAction(AccessibilityAction.ACTION_LONG_CLICK);
-            }
-        }
-    }
-
-    /**
-     * Adds all the accessibility actions that can be handled.
-     */
     protected void getSupportedActions(View host, ItemInfo item, List<LauncherAction> out) {
         // If the request came from keyboard, do not add custom shortcuts as that is already
         // exposed as a direct shortcut
@@ -143,7 +99,7 @@
                     ? SHORTCUTS_AND_NOTIFICATIONS : DEEP_SHORTCUTS));
         }
 
-        for (ButtonDropTarget target : mLauncher.getDropTargetBar().getDropTargets()) {
+        for (ButtonDropTarget target : mContext.getDropTargetBar().getDropTargets()) {
             if (target.supportsAccessibilityDrop(item, host)) {
                 out.add(mActions.get(target.getAccessibilityAction()));
             }
@@ -183,31 +139,7 @@
         return result;
     }
 
-    private boolean itemSupportsLongClick(View host, ItemInfo info) {
-        return PopupContainerWithArrow.canShow(host, info);
-    }
-
-    private boolean itemSupportsAccessibleDrag(ItemInfo item) {
-        if (item instanceof WorkspaceItemInfo) {
-            // Support the action unless the item is in a context menu.
-            return item.screenId >= 0 && item.container != Favorites.CONTAINER_HOTSEAT_PREDICTION;
-        }
-        return (item instanceof LauncherAppWidgetInfo)
-                || (item instanceof FolderInfo);
-    }
-
     @Override
-    public boolean performAccessibilityAction(View host, int action, Bundle args) {
-        if ((host.getTag() instanceof ItemInfo)
-                && performAction(host, (ItemInfo) host.getTag(), action, false)) {
-            return true;
-        }
-        return super.performAccessibilityAction(host, action, args);
-    }
-
-    /**
-     * Performs the provided action on the host
-     */
     protected boolean performAction(final View host, final ItemInfo item, int action,
             boolean fromKeyboard) {
         if (action == ACTION_LONG_CLICK) {
@@ -226,36 +158,36 @@
             if (screenId == -1) {
                 return false;
             }
-            mLauncher.getStateManager().goToState(NORMAL, true, forSuccessCallback(() -> {
+            mContext.getStateManager().goToState(NORMAL, true, forSuccessCallback(() -> {
                 if (item instanceof AppInfo) {
                     WorkspaceItemInfo info = ((AppInfo) item).makeWorkspaceItem();
-                    mLauncher.getModelWriter().addItemToDatabase(info,
+                    mContext.getModelWriter().addItemToDatabase(info,
                             Favorites.CONTAINER_DESKTOP,
                             screenId, coordinates[0], coordinates[1]);
 
-                    mLauncher.bindItems(
+                    mContext.bindItems(
                             Collections.singletonList(info),
                             /* forceAnimateIcons= */ true,
                             /* focusFirstItemForAccessibility= */ true);
                     announceConfirmation(R.string.item_added_to_workspace);
                 } else if (item instanceof PendingAddItemInfo) {
                     PendingAddItemInfo info = (PendingAddItemInfo) item;
-                    Workspace workspace = mLauncher.getWorkspace();
+                    Workspace workspace = mContext.getWorkspace();
                     workspace.snapToPage(workspace.getPageIndexForScreenId(screenId));
-                    mLauncher.addPendingItem(info, Favorites.CONTAINER_DESKTOP,
+                    mContext.addPendingItem(info, Favorites.CONTAINER_DESKTOP,
                             screenId, coordinates, info.spanX, info.spanY);
                 }
                 else if (item instanceof WorkspaceItemInfo) {
                     WorkspaceItemInfo info = ((WorkspaceItemInfo) item).clone();
-                    mLauncher.getModelWriter().addItemToDatabase(info,
+                    mContext.getModelWriter().addItemToDatabase(info,
                             Favorites.CONTAINER_DESKTOP,
                             screenId, coordinates[0], coordinates[1]);
-                    mLauncher.bindItems(Collections.singletonList(info), true, true);
+                    mContext.bindItems(Collections.singletonList(info), true, true);
                 }
             }));
             return true;
         } else if (action == MOVE_TO_WORKSPACE) {
-            Folder folder = Folder.getOpen(mLauncher);
+            Folder folder = Folder.getOpen(mContext);
             folder.close(true);
             WorkspaceItemInfo info = (WorkspaceItemInfo) item;
             folder.getInfo().remove(info, false);
@@ -265,14 +197,14 @@
             if (screenId == -1) {
                 return false;
             }
-            mLauncher.getModelWriter().moveItemInDatabase(info,
+            mContext.getModelWriter().moveItemInDatabase(info,
                     Favorites.CONTAINER_DESKTOP,
                     screenId, coordinates[0], coordinates[1]);
 
             // Bind the item in next frame so that if a new workspace page was created,
             // it will get laid out.
             new Handler().post(() -> {
-                mLauncher.bindItems(Collections.singletonList(item), true);
+                mContext.bindItems(Collections.singletonList(item), true);
                 announceConfirmation(R.string.item_moved);
             });
             return true;
@@ -280,15 +212,15 @@
             final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) item;
             List<OptionItem> actions = getSupportedResizeActions(host, info);
             Rect pos = new Rect();
-            mLauncher.getDragLayer().getDescendantRectRelativeToSelf(host, pos);
-            ArrowPopup popup = OptionsPopupView.show(mLauncher, new RectF(pos), actions, false);
+            mContext.getDragLayer().getDescendantRectRelativeToSelf(host, pos);
+            ArrowPopup popup = OptionsPopupView.show(mContext, new RectF(pos), actions, false);
             popup.requestFocus();
             popup.setOnCloseCallback(host::requestFocus);
             return true;
         } else if (action == DEEP_SHORTCUTS || action == SHORTCUTS_AND_NOTIFICATIONS) {
             return PopupContainerWithArrow.showForIcon((BubbleTextView) host) != null;
         } else {
-            for (ButtonDropTarget dropTarget : mLauncher.getDropTargetBar().getDropTargets()) {
+            for (ButtonDropTarget dropTarget : mContext.getDropTargetBar().getDropTargets()) {
                 if (dropTarget.supportsAccessibilityDrop(item, host)
                         && action == dropTarget.getAccessibilityAction()) {
                     dropTarget.onAccessibilityDrop(host, item);
@@ -315,7 +247,7 @@
         if ((providerInfo.resizeMode & AppWidgetProviderInfo.RESIZE_HORIZONTAL) != 0) {
             if (layout.isRegionVacant(info.cellX + info.spanX, info.cellY, 1, info.spanY) ||
                     layout.isRegionVacant(info.cellX - 1, info.cellY, 1, info.spanY)) {
-                actions.add(new OptionItem(mLauncher,
+                actions.add(new OptionItem(mContext,
                         R.string.action_increase_width,
                         R.drawable.ic_widget_width_increase,
                         IGNORE,
@@ -323,7 +255,7 @@
             }
 
             if (info.spanX > info.minSpanX && info.spanX > 1) {
-                actions.add(new OptionItem(mLauncher,
+                actions.add(new OptionItem(mContext,
                         R.string.action_decrease_width,
                         R.drawable.ic_widget_width_decrease,
                         IGNORE,
@@ -334,7 +266,7 @@
         if ((providerInfo.resizeMode & AppWidgetProviderInfo.RESIZE_VERTICAL) != 0) {
             if (layout.isRegionVacant(info.cellX, info.cellY + info.spanY, info.spanX, 1) ||
                     layout.isRegionVacant(info.cellX, info.cellY - 1, info.spanX, 1)) {
-                actions.add(new OptionItem(mLauncher,
+                actions.add(new OptionItem(mContext,
                         R.string.action_increase_height,
                         R.drawable.ic_widget_height_increase,
                         IGNORE,
@@ -342,7 +274,7 @@
             }
 
             if (info.spanY > info.minSpanY && info.spanY > 1) {
-                actions.add(new OptionItem(mLauncher,
+                actions.add(new OptionItem(mContext,
                         R.string.action_decrease_height,
                         R.drawable.ic_widget_height_decrease,
                         IGNORE,
@@ -382,58 +314,20 @@
         }
 
         layout.markCellsAsOccupiedForView(host);
-        WidgetSizes.updateWidgetSizeRanges(((LauncherAppWidgetHostView) host), mLauncher,
+        WidgetSizes.updateWidgetSizeRanges(((LauncherAppWidgetHostView) host), mContext,
                 info.spanX, info.spanY);
         host.requestLayout();
-        mLauncher.getModelWriter().updateItemInDatabase(info);
-        announceConfirmation(mLauncher.getString(R.string.widget_resized, info.spanX, info.spanY));
+        mContext.getModelWriter().updateItemInDatabase(info);
+        announceConfirmation(mContext.getString(R.string.widget_resized, info.spanX, info.spanY));
         return true;
     }
 
     @Thunk void announceConfirmation(int resId) {
-        announceConfirmation(mLauncher.getResources().getString(resId));
+        announceConfirmation(mContext.getResources().getString(resId));
     }
 
-    @Thunk void announceConfirmation(String confirmation) {
-        mLauncher.getDragLayer().announceForAccessibility(confirmation);
-
-    }
-
-    public boolean isInAccessibleDrag() {
-        return mDragInfo != null;
-    }
-
-    public DragInfo getDragInfo() {
-        return mDragInfo;
-    }
-
-    /**
-     * @param clickedTarget the actual view that was clicked
-     * @param dropLocation relative to {@param clickedTarget}. If provided, its center is used
-     * as the actual drop location otherwise the views center is used.
-     */
-    public void handleAccessibleDrop(View clickedTarget, Rect dropLocation,
-            String confirmation) {
-        if (!isInAccessibleDrag()) return;
-
-        int[] loc = new int[2];
-        if (dropLocation == null) {
-            loc[0] = clickedTarget.getWidth() / 2;
-            loc[1] = clickedTarget.getHeight() / 2;
-        } else {
-            loc[0] = dropLocation.centerX();
-            loc[1] = dropLocation.centerY();
-        }
-
-        mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(clickedTarget, loc);
-        mLauncher.getDragController().completeAccessibleDrag(loc);
-
-        if (!TextUtils.isEmpty(confirmation)) {
-            announceConfirmation(confirmation);
-        }
-    }
-
-    private boolean beginAccessibleDrag(View item, ItemInfo info, boolean fromKeyboard) {
+    @Override
+    protected boolean beginAccessibleDrag(View item, ItemInfo info, boolean fromKeyboard) {
         if (!itemSupportsAccessibleDrag(info)) {
             return false;
         }
@@ -449,8 +343,8 @@
         }
 
         Rect pos = new Rect();
-        mLauncher.getDragLayer().getDescendantRectRelativeToSelf(item, pos);
-        mLauncher.getDragController().addDragListener(this);
+        mContext.getDragLayer().getDescendantRectRelativeToSelf(item, pos);
+        mContext.getDragController().addDragListener(this);
 
         DragOptions options = new DragOptions();
         options.isAccessibleDrag = true;
@@ -458,31 +352,20 @@
         options.simulatedDndStartPoint = new Point(pos.centerX(), pos.centerY());
 
         if (fromKeyboard) {
-            KeyboardDragAndDropView popup = (KeyboardDragAndDropView) mLauncher.getLayoutInflater()
-                    .inflate(R.layout.keyboard_drag_and_drop, mLauncher.getDragLayer(), false);
+            KeyboardDragAndDropView popup = (KeyboardDragAndDropView) mContext.getLayoutInflater()
+                    .inflate(R.layout.keyboard_drag_and_drop, mContext.getDragLayer(), false);
             popup.showForIcon(item, info, options);
         } else {
-            ItemLongClickListener.beginDrag(item, mLauncher, info, options);
+            ItemLongClickListener.beginDrag(item, mContext, info, options);
         }
         return true;
     }
 
-    @Override
-    public void onDragStart(DragObject dragObject, DragOptions options) {
-        // No-op
-    }
-
-    @Override
-    public void onDragEnd() {
-        mLauncher.getDragController().removeDragListener(this);
-        mDragInfo = null;
-    }
-
     /**
      * Find empty space on the workspace and returns the screenId.
      */
     protected int findSpaceOnWorkspace(ItemInfo info, int[] outCoordinates) {
-        Workspace workspace = mLauncher.getWorkspace();
+        Workspace workspace = mContext.getWorkspace();
         IntArray workspaceScreens = workspace.getScreenOrder();
         int screenId;
 
@@ -520,29 +403,4 @@
         }
         return screenId;
     }
-
-    public class LauncherAction {
-        public final int keyCode;
-        public final AccessibilityAction accessibilityAction;
-
-        private final LauncherAccessibilityDelegate mDelegate;
-
-        public LauncherAction(int id, int labelRes, int keyCode) {
-            this.keyCode = keyCode;
-            accessibilityAction = new AccessibilityAction(id, mLauncher.getString(labelRes));
-            mDelegate = LauncherAccessibilityDelegate.this;
-        }
-
-        /**
-         * Invokes the action for the provided host
-         */
-        public boolean invokeFromKeyboard(View host) {
-            if (host != null && host.getTag() instanceof ItemInfo) {
-                return mDelegate.performAction(
-                        host, (ItemInfo) host.getTag(), accessibilityAction.getId(), true);
-            } else {
-                return false;
-            }
-        }
-    }
 }
diff --git a/src/com/android/launcher3/accessibility/ShortcutMenuAccessibilityDelegate.java b/src/com/android/launcher3/accessibility/ShortcutMenuAccessibilityDelegate.java
index bf5a24b..fb847ec 100644
--- a/src/com/android/launcher3/accessibility/ShortcutMenuAccessibilityDelegate.java
+++ b/src/com/android/launcher3/accessibility/ShortcutMenuAccessibilityDelegate.java
@@ -71,12 +71,12 @@
             if (screenId == -1) {
                 return false;
             }
-            mLauncher.getStateManager().goToState(NORMAL, true, forSuccessCallback(() -> {
-                mLauncher.getModelWriter().addItemToDatabase(info,
+            mContext.getStateManager().goToState(NORMAL, true, forSuccessCallback(() -> {
+                mContext.getModelWriter().addItemToDatabase(info,
                         LauncherSettings.Favorites.CONTAINER_DESKTOP,
                         screenId, coordinates[0], coordinates[1]);
-                mLauncher.bindItems(Collections.singletonList(info), true);
-                AbstractFloatingView.closeAllOpenViews(mLauncher);
+                mContext.bindItems(Collections.singletonList(info), true);
+                AbstractFloatingView.closeAllOpenViews(mContext);
                 announceConfirmation(R.string.item_added_to_workspace);
             }));
             return true;
diff --git a/src/com/android/launcher3/accessibility/WorkspaceAccessibilityHelper.java b/src/com/android/launcher3/accessibility/WorkspaceAccessibilityHelper.java
index a331924..a8624dd 100644
--- a/src/com/android/launcher3/accessibility/WorkspaceAccessibilityHelper.java
+++ b/src/com/android/launcher3/accessibility/WorkspaceAccessibilityHelper.java
@@ -22,7 +22,7 @@
 
 import com.android.launcher3.CellLayout;
 import com.android.launcher3.R;
-import com.android.launcher3.accessibility.LauncherAccessibilityDelegate.DragType;
+import com.android.launcher3.accessibility.BaseAccessibilityDelegate.DragType;
 import com.android.launcher3.model.data.AppInfo;
 import com.android.launcher3.model.data.FolderInfo;
 import com.android.launcher3.model.data.ItemInfo;
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index 98cb5ae..1fa6360 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -95,6 +95,9 @@
     public static final BooleanFlag ENABLE_ONE_SEARCH = new DeviceFlag("ENABLE_ONE_SEARCH", false,
             "Use homescreen search box to complete allApps searches");
 
+    public static final BooleanFlag COLLECT_SEARCH_HISTORY = new DeviceFlag(
+            "COLLECT_SEARCH_HISTORY", false, "Allow launcher to collect search history for log");
+
     public static final BooleanFlag ENABLE_TWOLINE_ALLAPPS = getDebugFlag(
             "ENABLE_TWOLINE_ALLAPPS", false, "Enables two line label inside all apps.");
 
diff --git a/src/com/android/launcher3/model/BgDataModel.java b/src/com/android/launcher3/model/BgDataModel.java
index 13ad90e..84612de 100644
--- a/src/com/android/launcher3/model/BgDataModel.java
+++ b/src/com/android/launcher3/model/BgDataModel.java
@@ -31,6 +31,8 @@
 import android.util.ArraySet;
 import android.util.Log;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.Workspace;
@@ -215,6 +217,18 @@
     }
 
     public synchronized void addItem(Context context, ItemInfo item, boolean newItem) {
+        addItem(context, item, newItem, null);
+    }
+
+    public synchronized void addItem(
+            Context context, ItemInfo item, boolean newItem, @Nullable LoaderMemoryLogger logger) {
+        if (logger != null) {
+            logger.addLog(
+                    Log.DEBUG,
+                    TAG,
+                    String.format("Adding item to ID map: %s", item.toString()),
+                    /* stackTrace= */ null);
+        }
         itemsIdMap.put(item.id, item);
         switch (item.itemType) {
             case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
diff --git a/src/com/android/launcher3/model/LoaderCursor.java b/src/com/android/launcher3/model/LoaderCursor.java
index 47df538..08b38e8 100644
--- a/src/com/android/launcher3/model/LoaderCursor.java
+++ b/src/com/android/launcher3/model/LoaderCursor.java
@@ -383,18 +383,23 @@
         info.cellY = getInt(cellYIndex);
     }
 
+    public void checkAndAddItem(ItemInfo info, BgDataModel dataModel) {
+        checkAndAddItem(info, dataModel, null);
+    }
+
     /**
      * Adds the {@param info} to {@param dataModel} if it does not overlap with any other item,
      * otherwise marks it for deletion.
      */
-    public void checkAndAddItem(ItemInfo info, BgDataModel dataModel) {
+    public void checkAndAddItem(
+            ItemInfo info, BgDataModel dataModel, LoaderMemoryLogger logger) {
         if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
             // Ensure that it is a valid intent. An exception here will
             // cause the item loading to get skipped
             ShortcutKey.fromItemInfo(info);
         }
         if (checkItemPlacement(info)) {
-            dataModel.addItem(mContext, info, false);
+            dataModel.addItem(mContext, info, false, logger);
         } else {
             markDeleted("Item position overlap");
         }
diff --git a/src/com/android/launcher3/model/LoaderMemoryLogger.java b/src/com/android/launcher3/model/LoaderMemoryLogger.java
new file mode 100644
index 0000000..f48efcb
--- /dev/null
+++ b/src/com/android/launcher3/model/LoaderMemoryLogger.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2021 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.model;
+
+import android.util.Log;
+
+import androidx.annotation.Nullable;
+
+import java.util.ArrayList;
+
+/**
+ * Helper logger that collects logs while {@code LoaderTask#run} executes and prints them all iff
+ * an exception is caught in {@code LoaderTask#run}.
+ */
+public class LoaderMemoryLogger {
+
+    private static final String TAG = "LoaderMemoryLogger";
+
+    private final ArrayList<LogEntry> mLogEntries = new ArrayList<>();
+
+    protected LoaderMemoryLogger() {}
+
+    protected void addLog(int logLevel, String tag, String log) {
+        addLog(logLevel, tag, log, null);
+    }
+
+    protected void addLog(
+            int logLevel, String tag, String log, Exception stackTrace) {
+        switch (logLevel) {
+            case Log.ASSERT:
+            case Log.ERROR:
+            case Log.DEBUG:
+            case Log.INFO:
+            case Log.VERBOSE:
+            case Log.WARN:
+                mLogEntries.add(new LogEntry(logLevel, tag, log, stackTrace));
+                break;
+            default:
+                throw new IllegalArgumentException("Invalid log level provided: " + logLevel);
+
+        }
+    }
+
+    protected void clearLogs() {
+        mLogEntries.clear();
+    }
+
+    protected void printLogs() {
+        for (LogEntry logEntry : mLogEntries) {
+            String tag = String.format("%s: %s", TAG, logEntry.mLogTag);
+            String logString = logEntry.mStackStrace == null
+                    ? logEntry.mLogString
+                    : String.format(
+                            "%s\n%s",
+                            logEntry.mLogString,
+                            Log.getStackTraceString(logEntry.mStackStrace));
+
+            Log.println(logEntry.mLogLevel, tag, logString);
+        }
+        clearLogs();
+    }
+
+    private static class LogEntry {
+
+        protected final int mLogLevel;
+        protected final String mLogTag;
+        protected final String mLogString;
+        @Nullable protected final Exception mStackStrace;
+
+        protected LogEntry(
+                int logLevel, String logTag, String logString, @Nullable Exception stackStrace) {
+            mLogLevel = logLevel;
+            mLogTag = logTag;
+            mLogString = logString;
+            mStackStrace = stackStrace;
+        }
+    }
+}
diff --git a/src/com/android/launcher3/model/LoaderTask.java b/src/com/android/launcher3/model/LoaderTask.java
index a4f6f7a..2a0f9a6 100644
--- a/src/com/android/launcher3/model/LoaderTask.java
+++ b/src/com/android/launcher3/model/LoaderTask.java
@@ -52,6 +52,8 @@
 import android.util.LongSparseArray;
 import android.util.TimingLogger;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherAppState;
@@ -197,11 +199,12 @@
 
         Object traceToken = TraceHelper.INSTANCE.beginSection(TAG);
         TimingLogger logger = new TimingLogger(TAG, "run");
+        LoaderMemoryLogger memoryLogger = new LoaderMemoryLogger();
         try (LauncherModel.LoaderTransaction transaction = mApp.getModel().beginLoader(this)) {
             List<ShortcutInfo> allShortcuts = new ArrayList<>();
             Trace.beginSection("LoadWorkspace");
             try {
-                loadWorkspace(allShortcuts);
+                loadWorkspace(allShortcuts, memoryLogger);
             } finally {
                 Trace.endSection();
             }
@@ -311,9 +314,13 @@
 
             mModelDelegate.modelLoadComplete();
             transaction.commit();
+            memoryLogger.clearLogs();
         } catch (CancellationException e) {
             // Loader stopped, ignore
             logASplit(logger, "Cancelled");
+        } catch (Exception e) {
+            memoryLogger.printLogs();
+            throw e;
         } finally {
             logger.dumpToLog();
         }
@@ -325,13 +332,21 @@
         this.notify();
     }
 
-    private void loadWorkspace(List<ShortcutInfo> allDeepShortcuts) {
+    private void loadWorkspace(List<ShortcutInfo> allDeepShortcuts, LoaderMemoryLogger logger) {
         loadWorkspace(allDeepShortcuts, LauncherSettings.Favorites.CONTENT_URI,
-                null /* selection */);
+                null /* selection */, logger);
     }
 
-    protected void loadWorkspace(List<ShortcutInfo> allDeepShortcuts, Uri contentUri,
-            String selection) {
+    protected void loadWorkspace(
+            List<ShortcutInfo> allDeepShortcuts, Uri contentUri, String selection) {
+        loadWorkspace(allDeepShortcuts, contentUri, selection, null);
+    }
+
+    protected void loadWorkspace(
+            List<ShortcutInfo> allDeepShortcuts,
+            Uri contentUri,
+            String selection,
+            @Nullable LoaderMemoryLogger logger) {
         final Context context = mApp.getContext();
         final ContentResolver contentResolver = context.getContentResolver();
         final PackageManagerHelper pmHelper = new PackageManagerHelper(context);
@@ -635,7 +650,7 @@
                                         }
                                 }
 
-                                c.checkAndAddItem(info, mBgDataModel);
+                                c.checkAndAddItem(info, mBgDataModel, logger);
                             } else {
                                 throw new RuntimeException("Unexpected null WorkspaceItemInfo");
                             }
@@ -654,7 +669,7 @@
                             // no special handling required for restored folders
                             c.markRestored();
 
-                            c.checkAndAddItem(folderInfo, mBgDataModel);
+                            c.checkAndAddItem(folderInfo, mBgDataModel, logger);
                             break;
 
                         case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
diff --git a/src/com/android/launcher3/popup/LauncherPopupLiveUpdateHandler.java b/src/com/android/launcher3/popup/LauncherPopupLiveUpdateHandler.java
index 731f439..3e3f633 100644
--- a/src/com/android/launcher3/popup/LauncherPopupLiveUpdateHandler.java
+++ b/src/com/android/launcher3/popup/LauncherPopupLiveUpdateHandler.java
@@ -18,6 +18,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 
+import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
 import com.android.launcher3.model.data.ItemInfo;
@@ -86,4 +87,9 @@
             }
         }
     }
+
+    @Override
+    protected void showPopupContainerForIcon(BubbleTextView originalIcon) {
+        PopupContainerWithArrow.showForIcon(originalIcon);
+    }
 }
diff --git a/src/com/android/launcher3/popup/PopupContainerWithArrow.java b/src/com/android/launcher3/popup/PopupContainerWithArrow.java
index aa8c70b..0097705 100644
--- a/src/com/android/launcher3/popup/PopupContainerWithArrow.java
+++ b/src/com/android/launcher3/popup/PopupContainerWithArrow.java
@@ -152,6 +152,10 @@
         };
     }
 
+    public void setPopupItemDragHandler(PopupItemDragHandler popupItemDragHandler) {
+        mPopupItemDragHandler = popupItemDragHandler;
+    }
+
     public PopupItemDragHandler getItemDragHandler() {
         return mPopupItemDragHandler;
     }
diff --git a/src/com/android/launcher3/popup/PopupLiveUpdateHandler.java b/src/com/android/launcher3/popup/PopupLiveUpdateHandler.java
index 194c22f..c5d5452 100644
--- a/src/com/android/launcher3/popup/PopupLiveUpdateHandler.java
+++ b/src/com/android/launcher3/popup/PopupLiveUpdateHandler.java
@@ -20,6 +20,7 @@
 import android.content.Context;
 import android.view.View;
 
+import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.dot.DotInfo;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.notification.NotificationContainer;
@@ -36,7 +37,7 @@
  *
  * @param <T> The activity on which the popup shows
  */
-public class PopupLiveUpdateHandler<T extends Context & ActivityContext> implements
+public abstract class PopupLiveUpdateHandler<T extends Context & ActivityContext> implements
         PopupDataProvider.PopupDataChangeListener, View.OnAttachStateChangeListener {
 
     protected final T mContext;
@@ -103,6 +104,8 @@
     @Override
     public void onSystemShortcutsUpdated() {
         mPopupContainerWithArrow.close(true);
-        PopupContainerWithArrow.showForIcon(mPopupContainerWithArrow.getOriginalIcon());
+        showPopupContainerForIcon(mPopupContainerWithArrow.getOriginalIcon());
     }
+
+    protected abstract void showPopupContainerForIcon(BubbleTextView originalIcon);
 }
diff --git a/src/com/android/launcher3/shortcuts/ShortcutDragPreviewProvider.java b/src/com/android/launcher3/shortcuts/ShortcutDragPreviewProvider.java
index cecbb0d..c166bfc 100644
--- a/src/com/android/launcher3/shortcuts/ShortcutDragPreviewProvider.java
+++ b/src/com/android/launcher3/shortcuts/ShortcutDragPreviewProvider.java
@@ -23,12 +23,12 @@
 import android.graphics.drawable.Drawable;
 import android.view.View;
 
-import com.android.launcher3.Launcher;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.graphics.DragPreviewProvider;
 import com.android.launcher3.icons.BitmapRenderer;
 import com.android.launcher3.icons.FastBitmapDrawable;
+import com.android.launcher3.views.ActivityContext;
 
 /**
  * Extension of {@link DragPreviewProvider} which generates bitmaps scaled to the default icon size.
@@ -45,7 +45,8 @@
     @Override
     public Drawable createDrawable() {
         if (FeatureFlags.ENABLE_DEEP_SHORTCUT_ICON_CACHE.get()) {
-            int size = Launcher.getLauncher(mView.getContext()).getDeviceProfile().iconSizePx;
+            int size = ActivityContext.lookupContext(mView.getContext())
+                    .getDeviceProfile().iconSizePx;
             return new FastBitmapDrawable(
                     BitmapRenderer.createHardwareBitmap(
                             size + blurSizeOutline,
@@ -59,7 +60,7 @@
     private Bitmap createDragBitmapLegacy() {
         Drawable d = mView.getBackground();
         Rect bounds = getDrawableBounds(d);
-        int size = Launcher.getLauncher(mView.getContext()).getDeviceProfile().iconSizePx;
+        int size = ActivityContext.lookupContext(mView.getContext()).getDeviceProfile().iconSizePx;
         final Bitmap b = Bitmap.createBitmap(
                 size + blurSizeOutline,
                 size + blurSizeOutline,
@@ -84,9 +85,9 @@
 
     @Override
     public float getScaleAndPosition(Drawable preview, int[] outPos) {
-        Launcher launcher = Launcher.getLauncher(mView.getContext());
+        ActivityContext context = ActivityContext.lookupContext(mView.getContext());
         int iconSize = getDrawableBounds(mView.getBackground()).width();
-        float scale = launcher.getDragLayer().getLocationInDragLayer(mView, outPos);
+        float scale = context.getDragLayer().getLocationInDragLayer(mView, outPos);
 
         int iconLeft = mView.getPaddingStart();
         if (Utilities.isRtl(mView.getResources())) {
@@ -98,7 +99,7 @@
                         + mPositionShift.x);
         outPos[1] += Math.round((scale * mView.getHeight() - preview.getIntrinsicHeight()) / 2
                 + mPositionShift.y);
-        float size = launcher.getDeviceProfile().iconSizePx;
+        float size = context.getDeviceProfile().iconSizePx;
         return scale * iconSize / size;
     }
 }
diff --git a/src/com/android/launcher3/touch/BaseSwipeDetector.java b/src/com/android/launcher3/touch/BaseSwipeDetector.java
index 1276ece..52c3581 100644
--- a/src/com/android/launcher3/touch/BaseSwipeDetector.java
+++ b/src/com/android/launcher3/touch/BaseSwipeDetector.java
@@ -17,6 +17,7 @@
 
 import static android.view.MotionEvent.INVALID_POINTER_ID;
 
+import android.content.Context;
 import android.graphics.PointF;
 import android.util.Log;
 import android.view.MotionEvent;
@@ -26,6 +27,8 @@
 import androidx.annotation.NonNull;
 import androidx.annotation.VisibleForTesting;
 
+import com.android.launcher3.R;
+
 import java.util.LinkedList;
 import java.util.Queue;
 
@@ -44,10 +47,9 @@
     private static final boolean DBG = false;
     private static final String TAG = "BaseSwipeDetector";
     private static final float ANIMATION_DURATION = 1200;
-    /** The minimum release velocity in pixels per millisecond that triggers fling.*/
-    private static final float RELEASE_VELOCITY_PX_MS = 1.0f;
     private static final PointF sTempPoint = new PointF();
 
+    private final float mReleaseVelocity;
     private final PointF mDownPos = new PointF();
     private final PointF mLastPos = new PointF();
     protected final boolean mIsRtl;
@@ -64,6 +66,7 @@
     private boolean mIsSettingState;
 
     protected boolean mIgnoreSlopWhenSettling;
+    protected Context mContext;
 
     private enum ScrollState {
         IDLE,
@@ -71,10 +74,14 @@
         SETTLING       // onDragEnd
     }
 
-    protected BaseSwipeDetector(@NonNull ViewConfiguration config, boolean isRtl) {
+    protected BaseSwipeDetector(@NonNull Context context, @NonNull ViewConfiguration config,
+            boolean isRtl) {
         mTouchSlop = config.getScaledTouchSlop();
         mMaxVelocity = config.getScaledMaximumFlingVelocity();
         mIsRtl = isRtl;
+        mContext = context;
+        mReleaseVelocity = mContext.getResources()
+                .getDimensionPixelSize(R.dimen.base_swift_detector_fling_release_velocity);
     }
 
     public static long calculateDuration(float velocity, float progressNeeded) {
@@ -120,7 +127,7 @@
     }
 
     public boolean isFling(float velocity) {
-        return Math.abs(velocity) > RELEASE_VELOCITY_PX_MS;
+        return Math.abs(velocity) > mReleaseVelocity;
     }
 
     public boolean onTouchEvent(MotionEvent ev) {
@@ -236,7 +243,7 @@
         } else {
             mSubtractDisplacement.x = mDisplacement.x > 0 ? mTouchSlop : -mTouchSlop;
             mSubtractDisplacement.y = mDisplacement.y > 0 ? mTouchSlop : -mTouchSlop;
-        } 
+        }
     }
 
     protected abstract boolean shouldScrollStart(PointF displacement);
diff --git a/src/com/android/launcher3/touch/BothAxesSwipeDetector.java b/src/com/android/launcher3/touch/BothAxesSwipeDetector.java
index 944391e..6e2f0d8 100644
--- a/src/com/android/launcher3/touch/BothAxesSwipeDetector.java
+++ b/src/com/android/launcher3/touch/BothAxesSwipeDetector.java
@@ -21,7 +21,6 @@
 import android.view.ViewConfiguration;
 
 import androidx.annotation.NonNull;
-import androidx.annotation.VisibleForTesting;
 
 import com.android.launcher3.Utilities;
 
@@ -43,13 +42,7 @@
     private int mScrollDirections;
 
     public BothAxesSwipeDetector(@NonNull Context context, @NonNull Listener l) {
-        this(ViewConfiguration.get(context), l, Utilities.isRtl(context.getResources()));
-    }
-
-    @VisibleForTesting
-    protected BothAxesSwipeDetector(@NonNull ViewConfiguration config, @NonNull Listener l,
-            boolean isRtl) {
-        super(config, isRtl);
+        super(context, ViewConfiguration.get(context), Utilities.isRtl(context.getResources()));
         mListener = l;
     }
 
diff --git a/src/com/android/launcher3/touch/LandscapePagedViewHandler.java b/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
index e127074..0c39067 100644
--- a/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
+++ b/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
@@ -36,6 +36,7 @@
 import android.graphics.RectF;
 import android.graphics.drawable.ShapeDrawable;
 import android.util.FloatProperty;
+import android.util.Pair;
 import android.view.MotionEvent;
 import android.view.Surface;
 import android.view.VelocityTracker;
@@ -356,7 +357,7 @@
     public List<SplitPositionOption> getSplitPositionOptions(DeviceProfile dp) {
         // Add "left" side of phone which is actually the top
         return Collections.singletonList(new SplitPositionOption(
-                R.drawable.ic_split_screen, R.string.split_screen_position_left,
+                R.drawable.ic_split_left, R.string.split_screen_position_left,
                 STAGE_POSITION_TOP_OR_LEFT, STAGE_TYPE_MAIN));
     }
 
@@ -462,8 +463,8 @@
     }
 
     @Override
-    public FloatProperty getSplitSelectTaskOffset(FloatProperty primary, FloatProperty secondary,
-            DeviceProfile deviceProfile) {
-        return primary;
+    public Pair<FloatProperty, FloatProperty> getSplitSelectTaskOffset(FloatProperty primary,
+            FloatProperty secondary, DeviceProfile deviceProfile) {
+        return new Pair<>(primary, secondary);
     }
 }
diff --git a/src/com/android/launcher3/touch/PagedOrientationHandler.java b/src/com/android/launcher3/touch/PagedOrientationHandler.java
index d954552..54b30fb 100644
--- a/src/com/android/launcher3/touch/PagedOrientationHandler.java
+++ b/src/com/android/launcher3/touch/PagedOrientationHandler.java
@@ -24,6 +24,7 @@
 import android.graphics.RectF;
 import android.graphics.drawable.ShapeDrawable;
 import android.util.FloatProperty;
+import android.util.Pair;
 import android.view.MotionEvent;
 import android.view.VelocityTracker;
 import android.view.View;
@@ -113,8 +114,8 @@
     float getSecondaryValue(float x, float y);
 
     boolean isLayoutNaturalToLauncher();
-    FloatProperty getSplitSelectTaskOffset(FloatProperty primary, FloatProperty secondary,
-            DeviceProfile deviceProfile);
+    Pair<FloatProperty, FloatProperty> getSplitSelectTaskOffset(FloatProperty primary,
+            FloatProperty secondary, DeviceProfile deviceProfile);
     int getDistanceToBottomOfRect(DeviceProfile dp, Rect rect);
     List<SplitPositionOption> getSplitPositionOptions(DeviceProfile dp);
     /**
diff --git a/src/com/android/launcher3/touch/PortraitPagedViewHandler.java b/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
index fbc335c..b9f1b66 100644
--- a/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
+++ b/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
@@ -35,6 +35,7 @@
 import android.graphics.RectF;
 import android.graphics.drawable.ShapeDrawable;
 import android.util.FloatProperty;
+import android.util.Pair;
 import android.view.MotionEvent;
 import android.view.Surface;
 import android.view.VelocityTracker;
@@ -369,28 +370,27 @@
     public List<SplitPositionOption> getSplitPositionOptions(DeviceProfile dp) {
         List<SplitPositionOption> options = new ArrayList<>(1);
         // Add both left and right options if we're in tablet mode
-        // TODO: Add in correct icons
         if (dp.isTablet && dp.isLandscape) {
             options.add(new SplitPositionOption(
-                    R.drawable.ic_split_screen, R.string.split_screen_position_right,
+                    R.drawable.ic_split_right, R.string.split_screen_position_right,
                     STAGE_POSITION_BOTTOM_OR_RIGHT, STAGE_TYPE_MAIN));
             options.add(new SplitPositionOption(
-                    R.drawable.ic_split_screen, R.string.split_screen_position_left,
+                    R.drawable.ic_split_left, R.string.split_screen_position_left,
                     STAGE_POSITION_TOP_OR_LEFT, STAGE_TYPE_MAIN));
         } else {
             if (dp.isSeascape()) {
                 // Add left/right options
                 options.add(new SplitPositionOption(
-                        R.drawable.ic_split_screen, R.string.split_screen_position_right,
+                        R.drawable.ic_split_right, R.string.split_screen_position_right,
                         STAGE_POSITION_BOTTOM_OR_RIGHT, STAGE_TYPE_MAIN));
             } else if (dp.isLandscape) {
                 options.add(new SplitPositionOption(
-                        R.drawable.ic_split_screen, R.string.split_screen_position_left,
+                        R.drawable.ic_split_left, R.string.split_screen_position_left,
                         STAGE_POSITION_TOP_OR_LEFT, STAGE_TYPE_MAIN));
             } else {
                 // Only add top option
                 options.add(new SplitPositionOption(
-                        R.drawable.ic_split_screen, R.string.split_screen_position_top,
+                        R.drawable.ic_split_top, R.string.split_screen_position_top,
                         STAGE_POSITION_TOP_OR_LEFT, STAGE_TYPE_MAIN));
             }
         }
@@ -571,12 +571,12 @@
     }
 
     @Override
-    public FloatProperty getSplitSelectTaskOffset(FloatProperty primary, FloatProperty secondary,
-            DeviceProfile dp) {
-        if (dp.isLandscape) { // or seascape
-            return primary;
+    public Pair<FloatProperty, FloatProperty> getSplitSelectTaskOffset(FloatProperty primary,
+            FloatProperty secondary, DeviceProfile deviceProfile) {
+        if (deviceProfile.isLandscape) { // or seascape
+            return new Pair<>(primary, secondary);
         } else {
-            return secondary;
+            return new Pair<>(secondary, primary);
         }
     }
 }
diff --git a/src/com/android/launcher3/touch/SeascapePagedViewHandler.java b/src/com/android/launcher3/touch/SeascapePagedViewHandler.java
index 539e3f8..ce2e136 100644
--- a/src/com/android/launcher3/touch/SeascapePagedViewHandler.java
+++ b/src/com/android/launcher3/touch/SeascapePagedViewHandler.java
@@ -115,7 +115,7 @@
     public List<SplitPositionOption> getSplitPositionOptions(DeviceProfile dp) {
         // Add "right" option which is actually the top
         return Collections.singletonList(new SplitPositionOption(
-                R.drawable.ic_split_screen, R.string.split_screen_position_right,
+                R.drawable.ic_split_right, R.string.split_screen_position_right,
                 STAGE_POSITION_TOP_OR_LEFT, STAGE_TYPE_MAIN));
     }
 
diff --git a/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java b/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java
index f751b7d..5c599c0 100644
--- a/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java
+++ b/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java
@@ -106,13 +106,15 @@
 
     public SingleAxisSwipeDetector(@NonNull Context context, @NonNull Listener l,
             @NonNull Direction dir) {
-        this(ViewConfiguration.get(context), l, dir, Utilities.isRtl(context.getResources()));
+        super(context, ViewConfiguration.get(context),  Utilities.isRtl(context.getResources()));
+        mListener = l;
+        mDir = dir;
     }
 
     @VisibleForTesting
-    protected SingleAxisSwipeDetector(@NonNull ViewConfiguration config, @NonNull Listener l,
-            @NonNull Direction dir, boolean isRtl) {
-        super(config, isRtl);
+    protected SingleAxisSwipeDetector(@NonNull Context context, @NonNull ViewConfiguration config,
+            @NonNull Listener l, @NonNull Direction dir, boolean isRtl) {
+        super(context, config, isRtl);
         mListener = l;
         mDir = dir;
     }
diff --git a/src/com/android/launcher3/util/SplitConfigurationOptions.java b/src/com/android/launcher3/util/SplitConfigurationOptions.java
index 53b1c3e..cb714b2 100644
--- a/src/com/android/launcher3/util/SplitConfigurationOptions.java
+++ b/src/com/android/launcher3/util/SplitConfigurationOptions.java
@@ -68,6 +68,11 @@
     public @interface StageType {}
     ///////////////////////////////////
 
+    /**
+     * Default split ratio for launching app pair from overview.
+     */
+    public static final float DEFAULT_SPLIT_RATIO = 0.5f;
+
     public static class SplitPositionOption {
         public final int iconResId;
         public final int textResId;
diff --git a/src/com/android/launcher3/views/FloatingIconView.java b/src/com/android/launcher3/views/FloatingIconView.java
index e731706..c0ec9d8 100644
--- a/src/com/android/launcher3/views/FloatingIconView.java
+++ b/src/com/android/launcher3/views/FloatingIconView.java
@@ -458,7 +458,7 @@
         if (mIconLoadResult != null && mIconLoadResult.isIconLoaded) {
             setVisibility(View.VISIBLE);
         }
-        if (!mIsOpening) {
+        if (!mIsOpening && mOriginalIcon != null) {
             // When closing an app, we want the item on the workspace to be invisible immediately
             setIconAndDotVisible(mOriginalIcon, false);
         }
diff --git a/src/com/android/launcher3/views/Snackbar.java b/src/com/android/launcher3/views/Snackbar.java
index 49fcd2e..f945819 100644
--- a/src/com/android/launcher3/views/Snackbar.java
+++ b/src/com/android/launcher3/views/Snackbar.java
@@ -28,8 +28,9 @@
 import android.view.MotionEvent;
 import android.widget.TextView;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.AbstractFloatingView;
-import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.R;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
@@ -44,7 +45,7 @@
     private static final long HIDE_DURATION_MS = 180;
     private static final int TIMEOUT_DURATION_MS = 4000;
 
-    private final BaseDraggingActivity mActivity;
+    private final ActivityContext mActivity;
     private Runnable mOnDismissed;
 
     public Snackbar(Context context, AttributeSet attrs) {
@@ -53,12 +54,19 @@
 
     public Snackbar(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
-        mActivity = BaseDraggingActivity.fromContext(context);
+        mActivity = ActivityContext.lookupContext(context);
         inflate(context, R.layout.snackbar, this);
     }
 
-    public static void show(BaseDraggingActivity activity, int labelStringResId,
-            int actionStringResId, Runnable onDismissed, Runnable onActionClicked) {
+    /** Show a snackbar with just a label. */
+    public static <T extends Context & ActivityContext> void show(T activity, int labelStringRedId,
+            Runnable onDismissed) {
+        show(activity, labelStringRedId, NO_ID, onDismissed, null);
+    }
+
+    /** Show a snackbar with a label and action. */
+    public static <T extends Context & ActivityContext> void show(T activity, int labelStringResId,
+            int actionStringResId, Runnable onDismissed, @Nullable Runnable onActionClicked) {
         closeOpenViews(activity, true, TYPE_SNACKBAR);
         Snackbar snackbar = new Snackbar(activity, null);
         // Set some properties here since inflated xml only contains the children.
@@ -87,13 +95,30 @@
         params.setMargins(0, 0, 0, marginBottom + insets.bottom);
 
         TextView labelView = snackbar.findViewById(R.id.label);
-        TextView actionView = snackbar.findViewById(R.id.action);
         String labelText = res.getString(labelStringResId);
-        String actionText = res.getString(actionStringResId);
-        int totalContentWidth = (int) (labelView.getPaint().measureText(labelText)
-                + actionView.getPaint().measureText(actionText))
+        labelView.setText(labelText);
+
+        TextView actionView = snackbar.findViewById(R.id.action);
+        float actionWidth;
+        if (actionStringResId != NO_ID) {
+            String actionText = res.getString(actionStringResId);
+            actionWidth = actionView.getPaint().measureText(actionText)
+                    + actionView.getPaddingRight() + actionView.getPaddingLeft();
+            actionView.setText(actionText);
+            actionView.setOnClickListener(v -> {
+                if (onActionClicked != null) {
+                    onActionClicked.run();
+                }
+                snackbar.mOnDismissed = null;
+                snackbar.close(true);
+            });
+        } else {
+            actionWidth = 0;
+            actionView.setVisibility(GONE);
+        }
+
+        int totalContentWidth = (int) (labelView.getPaint().measureText(labelText) + actionWidth)
                 + labelView.getPaddingRight() + labelView.getPaddingLeft()
-                + actionView.getPaddingRight() + actionView.getPaddingLeft()
                 + padding * 2;
         if (totalContentWidth > params.width) {
             // The text doesn't fit in our standard width so update width to accommodate.
@@ -113,17 +138,8 @@
                 params.width = maxWidth;
             }
         }
-        labelView.setText(labelText);
-        actionView.setText(actionText);
-        actionView.setOnClickListener(v -> {
-            if (onActionClicked != null) {
-                onActionClicked.run();
-            }
-            snackbar.mOnDismissed = null;
-            snackbar.close(true);
-        });
-        snackbar.mOnDismissed = onDismissed;
 
+        snackbar.mOnDismissed = onDismissed;
         snackbar.setAlpha(0);
         snackbar.setScaleX(0.8f);
         snackbar.setScaleY(0.8f);
diff --git a/tests/Android.bp b/tests/Android.bp
index c329ece..3670c37 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -23,7 +23,7 @@
 // Source code used for test
 filegroup {
     name: "launcher-tests-src",
-    srcs: ["src/**/*.java", "src/**/*.kt"],
+    srcs: ["src/**/*.java"],
 }
 
 // Source code used for oop test helpers
diff --git a/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.java b/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.java
new file mode 100644
index 0000000..8a4590a
--- /dev/null
+++ b/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.java
@@ -0,0 +1,201 @@
+package com.android.launcher3.model;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.graphics.Rect;
+import android.util.Pair;
+
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
+
+import com.android.launcher3.InvariantDeviceProfile;
+import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.LauncherSettings;
+import com.android.launcher3.LauncherSettings.Favorites;
+import com.android.launcher3.model.BgDataModel.Callbacks;
+import com.android.launcher3.model.data.ItemInfo;
+import com.android.launcher3.model.data.WorkspaceItemInfo;
+import com.android.launcher3.util.ContentWriter;
+import com.android.launcher3.util.Executors;
+import com.android.launcher3.util.GridOccupancy;
+import com.android.launcher3.util.IntArray;
+import com.android.launcher3.util.IntSparseArrayMap;
+import com.android.launcher3.util.LauncherModelHelper;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Tests for {@link AddWorkspaceItemsTask}
+ */
+@SmallTest
+@RunWith(AndroidJUnit4.class)
+public class AddWorkspaceItemsTaskTest {
+
+    private final ComponentName mComponent1 = new ComponentName("a", "b");
+    private final ComponentName mComponent2 = new ComponentName("b", "b");
+
+    private Context mTargetContext;
+    private InvariantDeviceProfile mIdp;
+    private LauncherAppState mAppState;
+    private LauncherModelHelper mModelHelper;
+
+    private IntArray mExistingScreens;
+    private IntArray mNewScreens;
+    private IntSparseArrayMap<GridOccupancy> mScreenOccupancy;
+
+    @Before
+    public void setup() {
+        mModelHelper = new LauncherModelHelper();
+        mTargetContext = mModelHelper.sandboxContext;
+        mIdp = InvariantDeviceProfile.INSTANCE.get(mTargetContext);
+        mIdp.numColumns = mIdp.numRows = 5;
+        mAppState = LauncherAppState.getInstance(mTargetContext);
+
+        mExistingScreens = new IntArray();
+        mScreenOccupancy = new IntSparseArrayMap<>();
+        mNewScreens = new IntArray();
+    }
+
+    @After
+    public void tearDown() {
+        mModelHelper.destroy();
+    }
+
+    private AddWorkspaceItemsTask newTask(ItemInfo... items) {
+        List<Pair<ItemInfo, Object>> list = new ArrayList<>();
+        for (ItemInfo item : items) {
+            list.add(Pair.create(item, null));
+        }
+        return new AddWorkspaceItemsTask(list);
+    }
+
+    @Test
+    public void testFindSpaceForItem_prefers_second() throws Exception {
+        // First screen has only one hole of size 1
+        int nextId = setupWorkspaceWithHoles(1, 1, new Rect(2, 2, 3, 3));
+
+        // Second screen has 2 holes of sizes 3x2 and 2x3
+        setupWorkspaceWithHoles(nextId, 2, new Rect(2, 0, 5, 2), new Rect(0, 2, 2, 5));
+
+        int[] spaceFound = newTask().findSpaceForItem(
+                mAppState, mModelHelper.getBgDataModel(), mExistingScreens, mNewScreens, 1, 1);
+        assertEquals(1, spaceFound[0]);
+        assertTrue(mScreenOccupancy.get(spaceFound[0])
+                .isRegionVacant(spaceFound[1], spaceFound[2], 1, 1));
+
+        // Find a larger space
+        spaceFound = newTask().findSpaceForItem(
+                mAppState, mModelHelper.getBgDataModel(), mExistingScreens, mNewScreens, 2, 3);
+        assertEquals(2, spaceFound[0]);
+        assertTrue(mScreenOccupancy.get(spaceFound[0])
+                .isRegionVacant(spaceFound[1], spaceFound[2], 2, 3));
+    }
+
+    @Test
+    public void testFindSpaceForItem_adds_new_screen() throws Exception {
+        // First screen has 2 holes of sizes 3x2 and 2x3
+        setupWorkspaceWithHoles(1, 1, new Rect(2, 0, 5, 2), new Rect(0, 2, 2, 5));
+
+        IntArray oldScreens = mExistingScreens.clone();
+        int[] spaceFound = newTask().findSpaceForItem(
+                mAppState, mModelHelper.getBgDataModel(), mExistingScreens, mNewScreens, 3, 3);
+        assertFalse(oldScreens.contains(spaceFound[0]));
+        assertTrue(mNewScreens.contains(spaceFound[0]));
+    }
+
+    @Test
+    public void testAddItem_existing_item_ignored() throws Exception {
+        WorkspaceItemInfo info = new WorkspaceItemInfo();
+        info.intent = new Intent().setComponent(mComponent1);
+
+        // Setup a screen with a hole
+        setupWorkspaceWithHoles(1, 1, new Rect(2, 2, 3, 3));
+
+        // Nothing was added
+        assertTrue(mModelHelper.executeTaskForTest(newTask(info)).isEmpty());
+    }
+
+    @Test
+    public void testAddItem_some_items_added() throws Exception {
+        Callbacks callbacks = mock(Callbacks.class);
+        Executors.MAIN_EXECUTOR.submit(() -> mModelHelper.getModel().addCallbacks(callbacks)).get();
+
+        WorkspaceItemInfo info = new WorkspaceItemInfo();
+        info.intent = new Intent().setComponent(mComponent1);
+
+        WorkspaceItemInfo info2 = new WorkspaceItemInfo();
+        info2.intent = new Intent().setComponent(mComponent2);
+
+        // Setup a screen with a hole
+        setupWorkspaceWithHoles(1, 1, new Rect(2, 2, 3, 3));
+
+        mModelHelper.executeTaskForTest(newTask(info, info2)).get(0).run();
+        ArgumentCaptor<ArrayList> notAnimated = ArgumentCaptor.forClass(ArrayList.class);
+        ArgumentCaptor<ArrayList> animated = ArgumentCaptor.forClass(ArrayList.class);
+
+        // only info2 should be added because info was already added to the workspace
+        // in setupWorkspaceWithHoles()
+        verify(callbacks).bindAppsAdded(any(IntArray.class), notAnimated.capture(),
+                animated.capture());
+        assertTrue(notAnimated.getValue().isEmpty());
+
+        assertEquals(1, animated.getValue().size());
+        assertTrue(animated.getValue().contains(info2));
+    }
+
+    private int setupWorkspaceWithHoles(int startId, int screenId, Rect... holes) throws Exception {
+        return mModelHelper.executeSimpleTask(
+                model -> writeWorkspaceWithHoles(model, startId, screenId, holes));
+    }
+
+    private int writeWorkspaceWithHoles(
+            BgDataModel bgDataModel, int startId, int screenId, Rect... holes) {
+        GridOccupancy occupancy = new GridOccupancy(mIdp.numColumns, mIdp.numRows);
+        occupancy.markCells(0, 0, mIdp.numColumns, mIdp.numRows, true);
+        for (Rect r : holes) {
+            occupancy.markCells(r, false);
+        }
+
+        mExistingScreens.add(screenId);
+        mScreenOccupancy.append(screenId, occupancy);
+
+        for (int x = 0; x < mIdp.numColumns; x++) {
+            for (int y = 0; y < mIdp.numRows; y++) {
+                if (!occupancy.cells[x][y]) {
+                    continue;
+                }
+
+                WorkspaceItemInfo info = new WorkspaceItemInfo();
+                info.intent = new Intent().setComponent(mComponent1);
+                info.id = startId++;
+                info.screenId = screenId;
+                info.cellX = x;
+                info.cellY = y;
+                info.container = LauncherSettings.Favorites.CONTAINER_DESKTOP;
+                bgDataModel.addItem(mTargetContext, info, false);
+
+                ContentWriter writer = new ContentWriter(mTargetContext);
+                info.writeToValues(writer);
+                writer.put(Favorites._ID, info.id);
+                mTargetContext.getContentResolver().insert(Favorites.CONTENT_URI,
+                        writer.getValues(mTargetContext));
+            }
+        }
+        return startId;
+    }
+}
diff --git a/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.kt b/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.kt
deleted file mode 100644
index e315658..0000000
--- a/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.kt
+++ /dev/null
@@ -1,325 +0,0 @@
-/*
- * Copyright (C) 2021 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.model
-
-import android.content.ComponentName
-import android.content.Context
-import android.content.Intent
-import android.graphics.Rect
-import android.util.Pair
-import androidx.test.ext.junit.runners.AndroidJUnit4
-import androidx.test.filters.SmallTest
-import com.android.launcher3.InvariantDeviceProfile
-import com.android.launcher3.LauncherAppState
-import com.android.launcher3.LauncherSettings
-import com.android.launcher3.model.data.ItemInfo
-import com.android.launcher3.model.data.WorkspaceItemInfo
-import com.android.launcher3.util.*
-import com.android.launcher3.util.IntArray
-import org.junit.After
-import org.junit.Assert.*
-import org.junit.Before
-import org.junit.Test
-import org.junit.runner.RunWith
-import org.mockito.*
-import org.mockito.ArgumentMatchers.any
-import org.mockito.Mockito.verify
-import kotlin.collections.ArrayList
-
-/**
- * Tests for [AddWorkspaceItemsTask]
- */
-@SmallTest
-@RunWith(AndroidJUnit4::class)
-class AddWorkspaceItemsTaskTest {
-
-    @Captor
-    private lateinit var animatedItemArgumentCaptor: ArgumentCaptor<ArrayList<ItemInfo>>
-
-    @Captor
-    private lateinit var notAnimatedItemArgumentCaptor: ArgumentCaptor<ArrayList<ItemInfo>>
-
-    @Mock
-    private lateinit var dataModelCallbacks: BgDataModel.Callbacks
-
-    private lateinit var mTargetContext: Context
-    private lateinit var mIdp: InvariantDeviceProfile
-    private lateinit var mAppState: LauncherAppState
-    private lateinit var mModelHelper: LauncherModelHelper
-    private lateinit var mExistingScreens: IntArray
-    private lateinit var mNewScreens: IntArray
-    private lateinit var mScreenOccupancy: IntSparseArrayMap<GridOccupancy>
-
-    private val emptyScreenHoles = listOf(Rect(0, 0, 5, 5))
-    private val fullScreenHoles = emptyList<Rect>()
-
-
-    @Before
-    fun setup() {
-        MockitoAnnotations.initMocks(this)
-        mModelHelper = LauncherModelHelper()
-        mTargetContext = mModelHelper.sandboxContext
-        mIdp = InvariantDeviceProfile.INSTANCE[mTargetContext]
-        mIdp.numRows = 5
-        mIdp.numColumns = mIdp.numRows
-        mAppState = LauncherAppState.getInstance(mTargetContext)
-        mExistingScreens = IntArray()
-        mScreenOccupancy = IntSparseArrayMap()
-        mNewScreens = IntArray()
-        Executors.MAIN_EXECUTOR.submit { mModelHelper.model.addCallbacks(dataModelCallbacks) }.get()
-    }
-
-    @After
-    fun tearDown() {
-        mModelHelper.destroy()
-    }
-
-    @Test
-    fun justEnoughSpaceOnFirstScreen_whenFindSpaceForItem_thenReturnFirstScreenId() {
-        setupWorkspacesWithHoles(
-                screen1 = listOf(Rect(2, 2, 3, 3)), // 1x1 hole
-                //  2 holes of sizes 3x2 and 2x3
-                screen2 = listOf(Rect(2, 0, 5, 2), Rect(0, 2, 2, 5)),
-        )
-
-        val spaceFound = newTask().findSpaceForItem(
-                mAppState, mModelHelper.bgDataModel, mExistingScreens, mNewScreens, 1, 1)
-        assertEquals(1, spaceFound[0])
-        assertTrue(mScreenOccupancy[spaceFound[0]]
-                .isRegionVacant(spaceFound[1], spaceFound[2], 1, 1))
-    }
-
-    @Test
-    fun notEnoughSpaceOnFirstScreen_whenFindSpaceForItem_thenReturnSecondScreenId() {
-        setupWorkspacesWithHoles(
-                screen1 = listOf(Rect(2, 2, 3, 3)), // 1x1 hole
-                //  2 holes of sizes 3x2 and 2x3
-                screen2 = listOf(Rect(2, 0, 5, 2), Rect(0, 2, 2, 5)),
-        )
-
-        // Find a larger space
-        val spaceFound = newTask().findSpaceForItem(
-                mAppState, mModelHelper.bgDataModel, mExistingScreens, mNewScreens, 2, 3)
-        assertEquals(2, spaceFound[0])
-        assertTrue(mScreenOccupancy[spaceFound[0]]
-                .isRegionVacant(spaceFound[1], spaceFound[2], 2, 3))
-    }
-
-    @Test
-    fun notEnoughSpaceOnExistingScreens_whenFindSpaceForItem_thenReturnNewScreenId() {
-        setupWorkspacesWithHoles(
-                //  2 holes of sizes 3x2 and 2x3
-                screen1 = listOf(Rect(2, 0, 5, 2), Rect(0, 2, 2, 5)),
-                //  2 holes of sizes 1x2 and 2x2
-                screen2 = listOf(Rect(1, 0, 2, 2), Rect(3, 2, 5, 4)),
-        )
-
-        val oldScreens = mExistingScreens.clone()
-        val spaceFound = newTask().findSpaceForItem(
-                mAppState, mModelHelper.bgDataModel, mExistingScreens, mNewScreens, 3, 3)
-        assertFalse(oldScreens.contains(spaceFound[0]))
-        assertTrue(mNewScreens.contains(spaceFound[0]))
-    }
-
-    @Test
-    fun enoughSpaceOnFirstScreen_whenTaskRuns_thenAddItemToFirstScreen() {
-        val workspaceHoles = createWorkspaceHoles(
-                screen1 = listOf(Rect(2, 2, 3, 3)), // 1x1 space
-                screen2 = listOf(Rect(2, 0, 5, 2)), // 3x2 space
-        )
-        val addedItems = testAddItems(workspaceHoles, getNewItem())
-        assertEquals(1, addedItems.size)
-        assertEquals(1, addedItems.first().itemInfo.screenId)
-    }
-
-    @Test
-    fun firstPageIsFull_whenTaskRuns_thenAddItemToSecondScreen() {
-        val workspaceHoles = createWorkspaceHoles(
-                screen1 = fullScreenHoles,
-        )
-        val addedItems = testAddItems(workspaceHoles, getNewItem())
-        assertEquals(1, addedItems.size)
-        assertEquals(2, addedItems.first().itemInfo.screenId)
-    }
-
-    @Test
-    fun firstScreenIsEmptyButSecondIsNotEmpty_whenTaskRuns_thenAddItemToSecondScreen() {
-        val workspaceHoles = createWorkspaceHoles(
-                screen1 = emptyScreenHoles,
-                screen2 = listOf(Rect(2, 0, 5, 2)), // 3x2 space
-        )
-        val addedItems = testAddItems(workspaceHoles, getNewItem())
-        assertEquals(1, addedItems.size)
-        assertEquals(2, addedItems.first().itemInfo.screenId)
-    }
-
-    @Test
-    fun twoEmptyMiddleScreens_whenTaskRuns_thenAddItemToThirdScreen() {
-        val workspaceHoles = createWorkspaceHoles(
-                screen1 = emptyScreenHoles,
-                screen2 = emptyScreenHoles,
-                screen3 = listOf(Rect(1, 1, 4, 4)), // 3x3 space
-        )
-        val addedItems = testAddItems(workspaceHoles, getNewItem())
-        assertEquals(1, addedItems.size)
-        assertEquals(3, addedItems.first().itemInfo.screenId)
-    }
-
-    @Test
-    fun allPagesAreFull_whenTaskRuns_thenAddItemToNewScreen() {
-        val workspaceHoles = createWorkspaceHoles(
-                screen1 = fullScreenHoles,
-                screen2 = fullScreenHoles,
-        )
-        val addedItems = testAddItems(workspaceHoles, getNewItem())
-        assertEquals(1, addedItems.size)
-        assertEquals(3, addedItems.first().itemInfo.screenId)
-    }
-
-    @Test
-    fun firstTwoPagesAreFull_and_ThirdPageIsEmpty_whenTaskRuns_thenAddItemToThirdPage() {
-        val workspaceHoles = createWorkspaceHoles(
-                screen1 = fullScreenHoles,
-                screen2 = fullScreenHoles,
-                screen3 = emptyScreenHoles
-        )
-        val addedItems = testAddItems(workspaceHoles, getNewItem())
-        assertEquals(1, addedItems.size)
-        assertEquals(3, addedItems.first().itemInfo.screenId)
-    }
-
-    @Test
-    fun itemIsAlreadyAdded_whenTaskRun_thenIgnoreItem() {
-        val task = newTask(getExistingItem())
-        setupWorkspacesWithHoles(
-                screen1 = listOf(Rect(2, 2, 3, 3)), // 1x1 hole
-        )
-
-        // Nothing was added
-        assertTrue(mModelHelper.executeTaskForTest(task).isEmpty())
-    }
-
-    @Test
-    fun newAndExistingItems_whenTaskRun_thenAddOnlyTheNewOne() {
-        val newItem = getNewItem()
-        val workspaceHoles = createWorkspaceHoles(
-                screen1 = listOf(Rect(2, 2, 3, 3)), // 1x1 hole
-        )
-        val addedItems = testAddItems(workspaceHoles, getExistingItem(), newItem)
-        assertEquals(1, addedItems.size)
-        val addedItem = addedItems.first()
-        assert(addedItem.isAnimated)
-        val addedItemInfo = addedItem.itemInfo
-        assertEquals(1, addedItemInfo.screenId)
-        assertEquals(newItem, addedItemInfo)
-    }
-
-    private fun testAddItems(
-            workspaceHoles: List<List<Rect>>,
-            vararg itemsToAdd: WorkspaceItemInfo
-    ): List<AddedItem> {
-        setupWorkspaces(workspaceHoles)
-        mModelHelper.executeTaskForTest(newTask(*itemsToAdd))[0].run()
-
-        verify(dataModelCallbacks).bindAppsAdded(any(),
-                notAnimatedItemArgumentCaptor.capture(), animatedItemArgumentCaptor.capture())
-
-        val addedItems = mutableListOf<AddedItem>()
-        addedItems.addAll(animatedItemArgumentCaptor.value.map { AddedItem(it, true) })
-        addedItems.addAll(notAnimatedItemArgumentCaptor.value.map { AddedItem(it, false) })
-        return addedItems
-    }
-
-    private fun setupWorkspaces(workspaceHoles: List<List<Rect>>) {
-        var nextItemId = 1
-        var screenId = 1
-        workspaceHoles.forEach { holes ->
-            nextItemId = setupWorkspace(nextItemId, screenId++, *holes.toTypedArray())
-        }
-    }
-
-    private fun setupWorkspace(startId: Int, screenId: Int, vararg holes: Rect): Int {
-        return mModelHelper.executeSimpleTask { dataModel ->
-            writeWorkspaceWithHoles(dataModel, startId, screenId, *holes)
-        }
-    }
-
-    private fun writeWorkspaceWithHoles(
-            bgDataModel: BgDataModel,
-            itemStartId: Int,
-            screenId: Int,
-            vararg holes: Rect,
-    ): Int {
-        var itemId = itemStartId
-        val occupancy = GridOccupancy(mIdp.numColumns, mIdp.numRows)
-        occupancy.markCells(0, 0, mIdp.numColumns, mIdp.numRows, true)
-        holes.forEach { holeRect ->
-            occupancy.markCells(holeRect, false)
-        }
-        mExistingScreens.add(screenId)
-        mScreenOccupancy.append(screenId, occupancy)
-        for (x in 0 until mIdp.numColumns) {
-            for (y in 0 until mIdp.numRows) {
-                if (!occupancy.cells[x][y]) {
-                    continue
-                }
-                val info = getExistingItem()
-                info.id = itemId++
-                info.screenId = screenId
-                info.cellX = x
-                info.cellY = y
-                info.container = LauncherSettings.Favorites.CONTAINER_DESKTOP
-                bgDataModel.addItem(mTargetContext, info, false)
-                val writer = ContentWriter(mTargetContext)
-                info.writeToValues(writer)
-                writer.put(LauncherSettings.Favorites._ID, info.id)
-                mTargetContext.contentResolver.insert(LauncherSettings.Favorites.CONTENT_URI,
-                        writer.getValues(mTargetContext))
-            }
-        }
-        return itemId
-    }
-
-    private fun setupWorkspacesWithHoles(
-            screen1: List<Rect>? = null,
-            screen2: List<Rect>? = null,
-            screen3: List<Rect>? = null,
-    ) = createWorkspaceHoles(screen1, screen2, screen3)
-            .let(this::setupWorkspaces)
-
-    private fun createWorkspaceHoles(
-            screen1: List<Rect>? = null,
-            screen2: List<Rect>? = null,
-            screen3: List<Rect>? = null,
-    ): List<List<Rect>> = listOfNotNull(screen1, screen2, screen3)
-
-    private fun newTask(vararg items: ItemInfo): AddWorkspaceItemsTask =
-            items.map { Pair.create(it, Any()) }
-                    .toMutableList()
-                    .let(::AddWorkspaceItemsTask)
-
-    private fun getExistingItem() = WorkspaceItemInfo()
-            .apply { intent = Intent().setComponent(ComponentName("a", "b")) }
-
-    private fun getNewItem() = WorkspaceItemInfo()
-            .apply { intent = Intent().setComponent(ComponentName("b", "b")) }
-}
-
-private data class AddedItem(
-        val itemInfo: ItemInfo,
-        val isAnimated: Boolean
-)
\ No newline at end of file
diff --git a/tests/src/com/android/launcher3/touch/SingleAxisSwipeDetectorTest.java b/tests/src/com/android/launcher3/touch/SingleAxisSwipeDetectorTest.java
index 472e1a1..260f556 100644
--- a/tests/src/com/android/launcher3/touch/SingleAxisSwipeDetectorTest.java
+++ b/tests/src/com/android/launcher3/touch/SingleAxisSwipeDetectorTest.java
@@ -30,6 +30,7 @@
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 
+import android.content.Context;
 import android.util.Log;
 import android.view.MotionEvent;
 import android.view.ViewConfiguration;
@@ -58,6 +59,7 @@
     private TouchEventGenerator mGenerator;
     private SingleAxisSwipeDetector mDetector;
     private int mTouchSlop;
+    Context mContext;
 
     @Mock
     private SingleAxisSwipeDetector.Listener mMockListener;
@@ -69,12 +71,13 @@
     public void setup() {
         MockitoAnnotations.initMocks(this);
         mGenerator = new TouchEventGenerator((ev) -> mDetector.onTouchEvent(ev));
-        ViewConfiguration orgConfig = ViewConfiguration
-                .get(InstrumentationRegistry.getTargetContext());
+        mContext = InstrumentationRegistry.getTargetContext();
+        ViewConfiguration orgConfig = ViewConfiguration.get(mContext);
         doReturn(orgConfig.getScaledMaximumFlingVelocity()).when(mMockConfig)
                 .getScaledMaximumFlingVelocity();
 
-        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, VERTICAL, false);
+        mDetector = new SingleAxisSwipeDetector(mContext,
+                mMockConfig, mMockListener, VERTICAL, false);
         mDetector.setDetectableScrollConditions(DIRECTION_BOTH, false);
         mTouchSlop = orgConfig.getScaledTouchSlop();
         doReturn(mTouchSlop).when(mMockConfig).getScaledTouchSlop();
@@ -84,7 +87,8 @@
 
     @Test
     public void testDragStart_verticalPositive() {
-        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, VERTICAL, false);
+        mDetector = new SingleAxisSwipeDetector(mContext,
+                mMockConfig, mMockListener, VERTICAL, false);
         mDetector.setDetectableScrollConditions(DIRECTION_POSITIVE, false);
         mGenerator.put(0, 100, 100);
         mGenerator.move(0, 100, 100 - mTouchSlop);
@@ -94,7 +98,8 @@
 
     @Test
     public void testDragStart_verticalNegative() {
-        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, VERTICAL, false);
+        mDetector = new SingleAxisSwipeDetector(mContext,
+                mMockConfig, mMockListener, VERTICAL, false);
         mDetector.setDetectableScrollConditions(DIRECTION_NEGATIVE, false);
         mGenerator.put(0, 100, 100);
         mGenerator.move(0, 100, 100 + mTouchSlop);
@@ -112,7 +117,8 @@
 
     @Test
     public void testDragStart_horizontalPositive() {
-        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, HORIZONTAL, false);
+        mDetector = new SingleAxisSwipeDetector(mContext,
+                mMockConfig, mMockListener, HORIZONTAL, false);
         mDetector.setDetectableScrollConditions(DIRECTION_POSITIVE, false);
 
         mGenerator.put(0, 100, 100);
@@ -123,7 +129,8 @@
 
     @Test
     public void testDragStart_horizontalNegative() {
-        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, HORIZONTAL, false);
+        mDetector = new SingleAxisSwipeDetector(mContext,
+                mMockConfig, mMockListener, HORIZONTAL, false);
         mDetector.setDetectableScrollConditions(DIRECTION_NEGATIVE, false);
 
         mGenerator.put(0, 100, 100);
@@ -134,7 +141,8 @@
 
     @Test
     public void testDragStart_horizontalRtlPositive() {
-        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, HORIZONTAL, true);
+        mDetector = new SingleAxisSwipeDetector(mContext,
+                mMockConfig, mMockListener, HORIZONTAL, true);
         mDetector.setDetectableScrollConditions(DIRECTION_POSITIVE, false);
 
         mGenerator.put(0, 100, 100);
@@ -145,7 +153,8 @@
 
     @Test
     public void testDragStart_horizontalRtlNegative() {
-        mDetector = new SingleAxisSwipeDetector(mMockConfig, mMockListener, HORIZONTAL, true);
+        mDetector = new SingleAxisSwipeDetector(mContext,
+                mMockConfig, mMockListener, HORIZONTAL, true);
         mDetector.setDetectableScrollConditions(DIRECTION_NEGATIVE, false);
 
         mGenerator.put(0, 100, 100);
diff --git a/tests/tapl/com/android/launcher3/tapl/BaseOverview.java b/tests/tapl/com/android/launcher3/tapl/BaseOverview.java
index d5479fb..3eb8cf1 100644
--- a/tests/tapl/com/android/launcher3/tapl/BaseOverview.java
+++ b/tests/tapl/com/android/launcher3/tapl/BaseOverview.java
@@ -212,7 +212,7 @@
         try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(
                 "want to get overview actions")) {
             verifyActiveContainer();
-            UiObject2 overviewActions = mLauncher.waitForLauncherObject("action_buttons");
+            UiObject2 overviewActions = mLauncher.waitForOverviewObject("action_buttons");
             return new OverviewActions(overviewActions, mLauncher);
         }
     }
@@ -224,19 +224,16 @@
         return mLauncher.hasLauncherObject(mLauncher.getOverviewObjectSelector("clear_all"));
     }
 
-    /* TODO(b/197630182): Once b/188790554 is fixed, remove instanceof check. Currently, when
-        swiping from app to overview in Fallback Recents, taskbar remains and no action buttons
-        are visible, so we are only testing Overview for now, not BaseOverview. */
     private void verifyActionsViewVisibility() {
-        if (!(this instanceof Overview) || !hasTasks()) {
+        if (!hasTasks()) {
             return;
         }
         try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(
                 "want to assert overview actions view visibility")) {
             if (mLauncher.isTablet() && !isOverviewSnappedToFocusedTaskForTablet()) {
-                mLauncher.waitUntilLauncherObjectGone("action_buttons");
+                mLauncher.waitUntilOverviewObjectGone("action_buttons");
             } else {
-                mLauncher.waitForLauncherObject("action_buttons");
+                mLauncher.waitForOverviewObject("action_buttons");
             }
         }
     }
diff --git a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
index 3485dd1..91b1bc7 100644
--- a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
+++ b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
@@ -1029,6 +1029,10 @@
         waitUntilGoneBySelector(getLauncherObjectSelector(resId));
     }
 
+    void waitUntilOverviewObjectGone(String resId) {
+        waitUntilGoneBySelector(getOverviewObjectSelector(resId));
+    }
+
     void waitUntilLauncherObjectGone(BySelector selector) {
         waitUntilGoneBySelector(makeLauncherSelector(selector));
     }
diff --git a/tests/tapl/com/android/launcher3/tapl/Widgets.java b/tests/tapl/com/android/launcher3/tapl/Widgets.java
index 6e7264a..0bac2ca 100644
--- a/tests/tapl/com/android/launcher3/tapl/Widgets.java
+++ b/tests/tapl/com/android/launcher3/tapl/Widgets.java
@@ -77,7 +77,8 @@
             mLauncher.scroll(
                     widgetsContainer,
                     Direction.UP,
-                    new Rect(0, 0, mLauncher.getVisibleBounds(widgetsContainer).width(), 0),
+                    new Rect(0, 0, mLauncher.getRightGestureMarginInContainer(widgetsContainer) + 1,
+                            0),
                     FLING_STEPS, false);
             try (LauncherInstrumentation.Closable c1 = mLauncher.addContextLayer("flung back")) {
                 verifyActiveContainer();