diff --git a/quickstep/res/values/override.xml b/quickstep/res/values/override.xml
index 67be0dd..860abc1 100644
--- a/quickstep/res/values/override.xml
+++ b/quickstep/res/values/override.xml
@@ -27,6 +27,8 @@
 
   <string name="nav_handle_long_press_handler_class" translatable="false"></string>
 
+  <string name="assist_utils_class" translatable="false"></string>
+
   <string name="secondary_display_predictions_class" translatable="false">com.android.launcher3.secondarydisplay.SecondaryDisplayPredictionsImpl</string>
 
   <string name="taskbar_model_callbacks_factory_class" translatable="false">com.android.launcher3.taskbar.TaskbarModelCallbacksFactory</string>
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt b/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt
index a935bac..c51a7ec 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt
@@ -15,6 +15,7 @@
  */
 package com.android.launcher3.taskbar
 
+import android.inputmethodservice.InputMethodService.ENABLE_HIDE_IME_CAPTION_BAR
 import android.graphics.Insets
 import android.graphics.Region
 import android.os.Binder
@@ -43,6 +44,7 @@
 import com.android.launcher3.taskbar.TaskbarControllers.LoggableTaskbarController
 import com.android.launcher3.util.DisplayController
 import java.io.PrintWriter
+import kotlin.jvm.optionals.getOrNull
 
 /** Handles the insets that Taskbar provides to underlying apps and the IME. */
 class TaskbarInsetsController(val context: TaskbarActivityContext) : LoggableTaskbarController {
@@ -198,16 +200,22 @@
 
         val imeInsetsSize = getInsetsForGravity(taskbarHeightForIme, gravity)
         val imeInsetsSizeOverride =
-                arrayOf(
-                        InsetsFrameProvider.InsetsSizeOverride(TYPE_INPUT_METHOD, imeInsetsSize),
-                )
+                if (!ENABLE_HIDE_IME_CAPTION_BAR) {
+                    arrayOf(
+                            InsetsFrameProvider.InsetsSizeOverride(
+                                    TYPE_INPUT_METHOD,
+                                    imeInsetsSize
+                            ),
+                    )
+                } else {
+                    arrayOf()
+                }
         // Use 0 tappableElement insets for the VoiceInteractionWindow when gesture nav is enabled.
         val visInsetsSizeForTappableElement =
                 if (context.isGestureNav) getInsetsForGravity(0, gravity)
                 else getInsetsForGravity(tappableHeight, gravity)
         val insetsSizeOverrideForTappableElement =
-                arrayOf(
-                        InsetsFrameProvider.InsetsSizeOverride(TYPE_INPUT_METHOD, imeInsetsSize),
+                imeInsetsSizeOverride + arrayOf(
                         InsetsFrameProvider.InsetsSizeOverride(
                                 TYPE_VOICE_INTERACTION,
                                 visInsetsSizeForTappableElement
@@ -216,7 +224,7 @@
         if ((context.isGestureNav || TaskbarManager.FLAG_HIDE_NAVBAR_WINDOW)
                 && provider.type == tappableElement()) {
             provider.insetsSizeOverrides = insetsSizeOverrideForTappableElement
-        } else if (provider.type != systemGestures()) {
+        } else if (provider.type != systemGestures() && imeInsetsSizeOverride.isNotEmpty()) {
             // We only override insets at the bottom of the screen
             provider.insetsSizeOverrides = imeInsetsSizeOverride
         }
@@ -283,9 +291,24 @@
                 controllers.uiController.isInOverview &&
                     DisplayController.isTransientTaskbar(context)
             ) {
-                insetsInfo.touchableRegion.set(
+                val region =
                     controllers.taskbarActivityContext.dragLayer.lastDrawnTransientRect.toRegion()
-                )
+                val bubbleBarBounds =
+                    controllers.bubbleControllers.getOrNull()?.let { bubbleControllers ->
+                        if (!bubbleControllers.bubbleStashController.isBubblesShowingOnOverview) {
+                            return@let null
+                        }
+                        if (!bubbleControllers.bubbleBarViewController.isBubbleBarVisible) {
+                            return@let null
+                        }
+                        bubbleControllers.bubbleBarViewController.bubbleBarBounds
+                    }
+
+                // Include the bounds of the bubble bar in the touchable region if they exist.
+                if (bubbleBarBounds != null) {
+                    region.op(bubbleBarBounds, Region.Op.UNION)
+                }
+                insetsInfo.touchableRegion.set(region)
             } else {
                 insetsInfo.touchableRegion.set(touchableRegion)
             }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
index 0f8de34..993f13e 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
@@ -51,6 +51,7 @@
 import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.TaskUtils;
 import com.android.quickstep.TouchInteractionService;
+import com.android.quickstep.util.AssistUtilsBase;
 import com.android.quickstep.views.DesktopTaskView;
 
 import java.io.PrintWriter;
@@ -158,7 +159,7 @@
         switch (buttonType) {
             case BUTTON_HOME:
                 logEvent(LAUNCHER_TASKBAR_HOME_BUTTON_LONGPRESS);
-                startAssistant();
+                onLongPressHome();
                 return true;
             case BUTTON_A11Y:
                 logEvent(LAUNCHER_TASKBAR_A11Y_BUTTON_LONGPRESS);
@@ -307,13 +308,17 @@
         }
     }
 
-    private void startAssistant() {
+    private void onLongPressHome() {
         if (mScreenPinned || !mAssistantLongPressEnabled) {
             return;
         }
-        Bundle args = new Bundle();
-        args.putInt(INVOCATION_TYPE_KEY, INVOCATION_TYPE_HOME_BUTTON_LONG_PRESS);
-        mSystemUiProxy.startAssistant(args);
+        // Attempt to start Assist with AssistUtils, otherwise fall back to SysUi's implementation.
+        if (!AssistUtilsBase.newInstance(mService.getApplicationContext()).tryStartAssistOverride(
+                INVOCATION_TYPE_HOME_BUTTON_LONG_PRESS)) {
+            Bundle args = new Bundle();
+            args.putInt(INVOCATION_TYPE_KEY, INVOCATION_TYPE_HOME_BUTTON_LONG_PRESS);
+            mSystemUiProxy.startAssistant(args);
+        }
     }
 
     private void showQuickSettings() {
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleStashController.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleStashController.java
index 00c2ca1..a5ea5a9 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleStashController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleStashController.java
@@ -197,6 +197,11 @@
         }
     }
 
+    /** Whether bubbles are showing on Overview. */
+    public boolean isBubblesShowingOnOverview() {
+        return mBubblesShowingOnOverview;
+    }
+
     /** Called when sysui locked state changes, when locked, bubble bar is stashed. */
     public void onSysuiLockedStateChange(boolean isSysuiLocked) {
         if (isSysuiLocked != mIsSysuiLocked) {
diff --git a/quickstep/src/com/android/quickstep/SystemUiProxy.java b/quickstep/src/com/android/quickstep/SystemUiProxy.java
index e73b525..823e137 100644
--- a/quickstep/src/com/android/quickstep/SystemUiProxy.java
+++ b/quickstep/src/com/android/quickstep/SystemUiProxy.java
@@ -62,6 +62,7 @@
 import com.android.launcher3.util.MainThreadInitializedObject;
 import com.android.launcher3.util.Preconditions;
 import com.android.launcher3.util.SplitConfigurationOptions;
+import com.android.quickstep.util.AssistUtilsBase;
 import com.android.systemui.shared.recents.ISystemUiProxy;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.RecentsAnimationControllerCompat;
@@ -250,6 +251,8 @@
         setBackToLauncherCallback(mBackToLauncherCallback, mBackToLauncherRunner);
         setUnfoldAnimationListener(mUnfoldAnimationListener);
         setDesktopTaskListener(mDesktopTaskListener);
+        setAssistantOverridesRequested(
+                AssistUtilsBase.newInstance(mContext).getSysUiAssistOverrideInvocationTypes());
     }
 
     /**
@@ -374,6 +377,17 @@
     }
 
     @Override
+    public void setAssistantOverridesRequested(int[] invocationTypes) {
+        if (mSystemUiProxy != null) {
+            try {
+                mSystemUiProxy.setAssistantOverridesRequested(invocationTypes);
+            } catch (RemoteException e) {
+                Log.w(TAG, "Failed call setAssistantOverridesRequested", e);
+            }
+        }
+    }
+
+    @Override
     public void notifyAccessibilityButtonClicked(int displayId) {
         if (mSystemUiProxy != null) {
             try {
diff --git a/quickstep/src/com/android/quickstep/TouchInteractionService.java b/quickstep/src/com/android/quickstep/TouchInteractionService.java
index 22aca25..cd88894 100644
--- a/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -117,6 +117,7 @@
 import com.android.quickstep.inputconsumers.TrackpadStatusBarInputConsumer;
 import com.android.quickstep.util.ActiveGestureLog;
 import com.android.quickstep.util.ActiveGestureLog.CompoundString;
+import com.android.quickstep.util.AssistUtilsBase;
 import com.android.systemui.shared.recents.IOverviewProxy;
 import com.android.systemui.shared.recents.ISystemUiProxy;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
@@ -280,6 +281,20 @@
             }));
         }
 
+        /**
+         * Sent when the assistant has been invoked with the given type (defined in AssistManager)
+         * and should be shown. This method is used if SystemUiProxy#setAssistantOverridesRequested
+         * was previously called including this invocation type.
+         */
+        @Override
+        public void onAssistantOverrideInvoked(int invocationType) {
+            executeForTouchInteractionService(tis -> {
+                if (!AssistUtilsBase.newInstance(tis).tryStartAssistOverride(invocationType)) {
+                    Log.w(TAG, "Failed to invoke Assist override");
+                }
+            });
+        }
+
         @Override
         public void onNavigationBarSurface(SurfaceControl surface) {
             // TODO: implement
diff --git a/quickstep/src/com/android/quickstep/util/AssistUtilsBase.java b/quickstep/src/com/android/quickstep/util/AssistUtilsBase.java
new file mode 100644
index 0000000..7b27020
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/util/AssistUtilsBase.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2023 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.content.Context;
+
+import com.android.launcher3.R;
+import com.android.launcher3.util.ResourceBasedOverride;
+
+/** Utilities to work with Assistant functionality. */
+public class AssistUtilsBase implements ResourceBasedOverride {
+
+    public AssistUtilsBase() {}
+
+    /** Creates AssistUtils as specified by overrides */
+    public static AssistUtilsBase newInstance(Context context) {
+        return Overrides.getObject(AssistUtilsBase.class, context, R.string.assist_utils_class);
+    }
+
+    /** @return Array of AssistUtils.INVOCATION_TYPE_* that we want to handle instead of SysUI. */
+    public int[] getSysUiAssistOverrideInvocationTypes() {
+        return new int[0];
+    }
+
+    /**
+     * @return {@code true} if the override was handled, i.e. an assist surface was shown or the
+     * request should be ignored. {@code false} means the caller should start assist another way.
+     */
+    public boolean tryStartAssistOverride(int invocationType) {
+        return false;
+    }
+}
diff --git a/quickstep/tests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java b/quickstep/tests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java
index 9622619..b3d04c6 100644
--- a/quickstep/tests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java
+++ b/quickstep/tests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java
@@ -26,6 +26,7 @@
 import android.os.Handler;
 import android.view.View;
 
+import androidx.test.platform.app.InstrumentationRegistry;
 import androidx.test.runner.AndroidJUnit4;
 
 import com.android.launcher3.logging.StatsLogManager;
@@ -70,6 +71,9 @@
         MockitoAnnotations.initMocks(this);
         when(mockService.getDisplayId()).thenReturn(DISPLAY_ID);
         when(mockService.getOverviewCommandHelper()).thenReturn(mockCommandHelper);
+        when(mockService.getApplicationContext())
+                .thenReturn(InstrumentationRegistry.getInstrumentation().getTargetContext()
+                        .getApplicationContext());
         when(mockStatsLogManager.logger()).thenReturn(mockStatsLogger);
         when(mockTaskbarControllers.getTaskbarActivityContext())
                 .thenReturn(mockTaskbarActivityContext);
diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsSplitscreen.java b/quickstep/tests/src/com/android/quickstep/TaplTestsSplitscreen.java
index 1aa7ab6..92b598b 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsSplitscreen.java
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsSplitscreen.java
@@ -25,6 +25,8 @@
 
 import android.content.Intent;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.LargeTest;
 import androidx.test.platform.app.InstrumentationRegistry;
 
 import com.android.launcher3.config.FeatureFlags;
@@ -36,7 +38,10 @@
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
+import org.junit.runner.RunWith;
 
+@LargeTest
+@RunWith(AndroidJUnit4.class)
 public class TaplTestsSplitscreen extends AbstractQuickStepTest {
     private static final String CALCULATOR_APP_NAME = "Calculator";
     private static final String CALCULATOR_APP_PACKAGE =
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index 360e060..abf84dd 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -16,6 +16,7 @@
 
 package com.android.launcher3;
 
+import static com.android.launcher3.config.FeatureFlags.ENABLE_CURSOR_HOVER_STATES;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_DOWNLOAD_APP_UX_V2;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_ICON_LABEL_AUTO_SCALING;
 import static com.android.launcher3.graphics.PreloadIconDrawable.newPendingIcon;
@@ -152,7 +153,7 @@
 
     private final CheckLongPressHelper mLongPressHelper;
 
-    private final boolean mLayoutHorizontal;
+    private boolean mLayoutHorizontal;
     private final boolean mIsRtl;
     private final int mIconSize;
 
@@ -197,6 +198,7 @@
     public BubbleTextView(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
         mActivity = ActivityContext.lookupContext(context);
+        FastBitmapDrawable.setFlagHoverEnabled(ENABLE_CURSOR_HOVER_STATES.get());
 
         TypedArray a = context.obtainStyledAttributes(attrs,
                 R.styleable.BubbleTextView, defStyle, 0);
@@ -666,6 +668,18 @@
     }
 
     /**
+     * Sets whether the layout is horizontal.
+     */
+    public void setLayoutHorizontal(boolean layoutHorizontal) {
+        if (mLayoutHorizontal == layoutHorizontal) {
+            return;
+        }
+
+        mLayoutHorizontal = layoutHorizontal;
+        applyCompoundDrawables(getIconOrTransparentColor());
+    }
+
+    /**
      * Sets whether to vertically center the content.
      */
     public void setCenterVertically(boolean centerVertically) {
@@ -991,10 +1005,14 @@
         if (!mIsIconVisible) {
             resetIconScale();
         }
-        Drawable icon = visible ? mIcon : new ColorDrawable(Color.TRANSPARENT);
+        Drawable icon = getIconOrTransparentColor();
         applyCompoundDrawables(icon);
     }
 
+    private Drawable getIconOrTransparentColor() {
+        return mIsIconVisible ? mIcon : new ColorDrawable(Color.TRANSPARENT);
+    }
+
     /** Sets the icon visual state to disabled or not. */
     public void setIconDisabled(boolean isDisabled) {
         if (mIcon != null) {
diff --git a/src/com/android/launcher3/CellLayout.java b/src/com/android/launcher3/CellLayout.java
index 4674401..08e5def 100644
--- a/src/com/android/launcher3/CellLayout.java
+++ b/src/com/android/launcher3/CellLayout.java
@@ -245,6 +245,7 @@
         // the user where a dragged item will land when dropped.
         setWillNotDraw(false);
         setClipToPadding(false);
+        setClipChildren(false);
         mActivity = ActivityContext.lookupContext(context);
         DeviceProfile deviceProfile = mActivity.getDeviceProfile();
 
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 7ece9a4..a48c928 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -1134,10 +1134,11 @@
      * This method calculates the space between the icons to achieve a certain width.
      */
     private int calculateHotseatBorderSpace(float hotseatWidthPx, int numExtraBorder) {
+        int numBorders = (numShownHotseatIcons - 1 + numExtraBorder);
+        if (numBorders <= 0) return 0;
+
         float hotseatIconsTotalPx = iconSizePx * numShownHotseatIcons;
-        int hotseatBorderSpacePx =
-                (int) (hotseatWidthPx - hotseatIconsTotalPx)
-                        / (numShownHotseatIcons - 1 + numExtraBorder);
+        int hotseatBorderSpacePx = (int) (hotseatWidthPx - hotseatIconsTotalPx) / numBorders;
         return Math.min(hotseatBorderSpacePx, mMaxHotseatIconSpacePx);
     }
 
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 4e7a884..ffb8b82 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -198,6 +198,7 @@
 import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
 import com.android.launcher3.util.ActivityResultInfo;
 import com.android.launcher3.util.ActivityTracker;
+import com.android.launcher3.util.CannedAnimationCoordinator;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSet;
@@ -421,6 +422,9 @@
     private StartupLatencyLogger mStartupLatencyLogger;
     private CellPosMapper mCellPosMapper = CellPosMapper.DEFAULT;
 
+    private final CannedAnimationCoordinator mAnimationCoordinator =
+            new CannedAnimationCoordinator(this);
+
     @Override
     @TargetApi(Build.VERSION_CODES.S)
     protected void onCreate(Bundle savedInstanceState) {
@@ -2343,13 +2347,37 @@
         mWorkspace.unlockWallpaperFromDefaultPageOnNextLayout();
     }
 
+    /**
+     * Remove odd number because they are already included when isTwoPanels and add the pair screen
+     * if not present.
+     */
+    private IntArray filterTwoPanelScreenIds(IntArray orderedScreenIds) {
+        IntSet screenIds = IntSet.wrap(orderedScreenIds);
+        orderedScreenIds.forEach(screenId -> {
+            if (screenId % 2 == 1) {
+                screenIds.remove(screenId);
+                // In case the pair is not added, add it
+                if (!mWorkspace.containsScreenId(screenId - 1)) {
+                    screenIds.add(screenId - 1);
+                }
+            }
+        });
+        return screenIds.getArray();
+    }
+
     private void bindAddScreens(IntArray orderedScreenIds) {
+
         if (mDeviceProfile.isTwoPanels) {
-            // Some empty pages might have been removed while the phone was in a single panel
-            // mode, so we want to add those empty pages back.
-            IntSet screenIds = IntSet.wrap(orderedScreenIds);
-            orderedScreenIds.forEach(screenId -> screenIds.add(mWorkspace.getScreenPair(screenId)));
-            orderedScreenIds = screenIds.getArray();
+            if (FOLDABLE_SINGLE_PAGE.get()) {
+                orderedScreenIds = filterTwoPanelScreenIds(orderedScreenIds);
+            } else {
+                // Some empty pages might have been removed while the phone was in a single panel
+                // mode, so we want to add those empty pages back.
+                IntSet screenIds = IntSet.wrap(orderedScreenIds);
+                orderedScreenIds.forEach(
+                        screenId -> screenIds.add(mWorkspace.getScreenPair(screenId)));
+                orderedScreenIds = screenIds.getArray();
+            }
         }
 
         int count = orderedScreenIds.size();
@@ -3398,4 +3426,11 @@
     public void launchAppPair(WorkspaceItemInfo app1, WorkspaceItemInfo app2) {
         // Overridden
     }
+
+    /**
+     * Returns the animation coordinator for playing one-off animations
+     */
+    public CannedAnimationCoordinator getAnimationCoordinator() {
+        return mAnimationCoordinator;
+    }
 }
diff --git a/src/com/android/launcher3/ShortcutAndWidgetContainer.java b/src/com/android/launcher3/ShortcutAndWidgetContainer.java
index 07b71b3..f0fea61 100644
--- a/src/com/android/launcher3/ShortcutAndWidgetContainer.java
+++ b/src/com/android/launcher3/ShortcutAndWidgetContainer.java
@@ -66,6 +66,7 @@
         mActivity = ActivityContext.lookupContext(context);
         mWallpaperManager = WallpaperManager.getInstance(context);
         mContainerType = containerType;
+        setClipChildren(false);
     }
 
     public void setCellDimensions(int cellWidth, int cellHeight, int countX, int countY,
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index adaf20f..8be8fed 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -731,6 +731,14 @@
         });
     }
 
+
+    /**
+     * Returns if the given screenId is already in the Workspace
+     */
+    public boolean containsScreenId(int screenId) {
+        return this.mWorkspaceScreens.containsKey(screenId);
+    }
+
     /**
      * Inserts extra empty pages to the end of the existing workspaces.
      * Usually we add one extra empty screen, but when two panel home is enabled we add
diff --git a/src/com/android/launcher3/util/CannedAnimationCoordinator.kt b/src/com/android/launcher3/util/CannedAnimationCoordinator.kt
new file mode 100644
index 0000000..18f8339
--- /dev/null
+++ b/src/com/android/launcher3/util/CannedAnimationCoordinator.kt
@@ -0,0 +1,164 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.launcher3.util
+
+import android.animation.AnimatorSet
+import android.animation.ValueAnimator
+import android.util.Log
+import android.view.ViewTreeObserver.OnGlobalLayoutListener
+import androidx.core.view.OneShotPreDrawListener
+import com.android.app.animation.Interpolators.LINEAR
+import com.android.launcher3.anim.AnimatorListeners
+import com.android.launcher3.anim.AnimatorPlaybackController
+import com.android.launcher3.anim.PendingAnimation
+import com.android.launcher3.statemanager.StatefulActivity
+import java.util.function.Consumer
+
+private const val TAG = "CannedAnimCoordinator"
+
+/**
+ * Utility class to run a canned animation on Launcher.
+ *
+ * This class takes care to registering animations with stateManager and ensures that only one
+ * animation is playing at a time.
+ */
+class CannedAnimationCoordinator(private val activity: StatefulActivity<*>) {
+
+    private val launcherLayoutListener = OnGlobalLayoutListener { scheduleRecreateAnimOnPreDraw() }
+    private var recreatePending = false
+
+    private var animationProvider: Any? = null
+
+    private var animationDuration: Long = 0L
+    private var animationFactory: Consumer<PendingAnimation>? = null
+    private var animationController: AnimatorPlaybackController? = null
+
+    private var currentAnim: AnimatorPlaybackController? = null
+
+    /**
+     * Sets the current animation cancelling any previously set animation.
+     *
+     * Callers can control the animation using {@link #getPlaybackController}. The state is
+     * automatically cleared when the playback controller ends. The animation is automatically
+     * recreated when any layout change happens. Callers can also ask for recreation by calling
+     * {@link #recreateAnimation}
+     */
+    fun setAnimation(provider: Any, factory: Consumer<PendingAnimation>, duration: Long) {
+        if (provider != animationProvider) {
+            Log.e(TAG, "Trying to play two animations together, $provider and $animationProvider")
+        }
+
+        // Cancel any previously running animation
+        endCurrentAnimation(false)
+        animationController?.dispatchOnCancel()?.dispatchOnEnd()
+
+        animationProvider = provider
+        animationFactory = factory
+        animationDuration = duration
+
+        // Setup a new controller and link it with launcher state animation
+        val anim = AnimatorSet()
+        anim.play(
+            ValueAnimator.ofFloat(0f, 1f).apply {
+                interpolator = LINEAR
+                this.duration = duration
+                addUpdateListener { anim -> currentAnim?.setPlayFraction(anim.animatedFraction) }
+            }
+        )
+        val controller = AnimatorPlaybackController.wrap(anim, duration)
+        anim.addListener(
+            AnimatorListeners.forEndCallback { success ->
+                if (animationController != controller) {
+                    return@forEndCallback
+                }
+
+                endCurrentAnimation(success)
+                animationController = null
+                animationFactory = null
+                animationProvider = null
+
+                activity.rootView.viewTreeObserver.apply {
+                    if (isAlive) {
+                        removeOnGlobalLayoutListener(launcherLayoutListener)
+                    }
+                }
+            }
+        )
+
+        // Recreate animation whenever layout happens in case transforms change during layout
+        activity.rootView.viewTreeObserver.apply {
+            if (isAlive) {
+                addOnGlobalLayoutListener(launcherLayoutListener)
+            }
+        }
+        // Link this to the state manager so that it auto-cancels when state changes
+        recreatePending = false
+        animationController =
+            controller.apply { activity.stateManager.setCurrentUserControlledAnimation(this) }
+        recreateAnimation(provider)
+    }
+
+    private fun endCurrentAnimation(success: Boolean) {
+        currentAnim?.apply {
+            // When cancelling an animation, apply final progress so that all transformations
+            // are restored
+            setPlayFraction(1f)
+            if (!success) dispatchOnCancel()
+            dispatchOnEnd()
+        }
+        currentAnim = null
+    }
+
+    /** Returns the current animation controller to control the animation */
+    fun getPlaybackController(provider: Any): AnimatorPlaybackController? {
+        return if (provider == animationProvider) animationController
+        else {
+            Log.d(TAG, "Wrong controller access from $provider, actual provider $animationProvider")
+            null
+        }
+    }
+
+    private fun scheduleRecreateAnimOnPreDraw() {
+        if (!recreatePending) {
+            recreatePending = true
+            OneShotPreDrawListener.add(activity.rootView) {
+                if (recreatePending) {
+                    recreatePending = false
+                    animationProvider?.apply { recreateAnimation(this) }
+                }
+            }
+        }
+    }
+
+    /** Notify the controller to recreate the animation. The animation progress is preserved */
+    fun recreateAnimation(provider: Any) {
+        if (provider != animationProvider) {
+            Log.e(TAG, "Ignore recreate request from $provider, actual provider $animationProvider")
+            return
+        }
+        endCurrentAnimation(false /* success */)
+
+        if (animationFactory == null || animationController == null) {
+            return
+        }
+        currentAnim =
+            PendingAnimation(animationDuration)
+                .apply { animationFactory?.accept(this) }
+                .createPlaybackController()
+                .apply { setPlayFraction(animationController!!.progressFraction) }
+    }
+}
diff --git a/src/com/android/launcher3/util/MultiScalePropertyFactory.java b/src/com/android/launcher3/util/MultiScalePropertyFactory.java
index a7e6cc8..cf8d6cc 100644
--- a/src/com/android/launcher3/util/MultiScalePropertyFactory.java
+++ b/src/com/android/launcher3/util/MultiScalePropertyFactory.java
@@ -40,8 +40,7 @@
     private static final boolean DEBUG = false;
     private static final String TAG = "MultiScaleProperty";
     private final String mName;
-    private final ArrayMap<Integer, MultiScaleProperty> mProperties =
-            new ArrayMap<Integer, MultiScaleProperty>();
+    private final ArrayMap<Integer, MultiScaleProperty> mProperties = new ArrayMap<>();
 
     // This is an optimization for cases when set is called repeatedly with the same setterIndex.
     private float mMinOfOthers = 0;
@@ -55,7 +54,7 @@
     }
 
     /** Returns the [MultiFloatProperty] associated with [inx], creating it if not present. */
-    public MultiScaleProperty get(Integer index) {
+    public FloatProperty<T> get(Integer index) {
         return mProperties.computeIfAbsent(index,
                 (k) -> new MultiScaleProperty(index, mName + "_" + index));
     }
diff --git a/tests/Android.bp b/tests/Android.bp
index ac0749e..5a52440 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -54,7 +54,6 @@
       "src/com/android/launcher3/util/rule/SamplerRule.java",
       "src/com/android/launcher3/util/rule/ScreenRecordRule.java",
       "src/com/android/launcher3/util/rule/ShellCommandRule.java",
-      "src/com/android/launcher3/util/rule/TestIsolationRule.java",
       "src/com/android/launcher3/util/rule/TestStabilityRule.java",
       "src/com/android/launcher3/util/rule/TISBindRule.java",
       "src/com/android/launcher3/util/viewcapture_analysis/*.java",
diff --git a/tests/src/com/android/launcher3/celllayout/CellLayoutTestCaseReader.java b/tests/src/com/android/launcher3/celllayout/CellLayoutTestCaseReader.java
index e33a304..419cb3d 100644
--- a/tests/src/com/android/launcher3/celllayout/CellLayoutTestCaseReader.java
+++ b/tests/src/com/android/launcher3/celllayout/CellLayoutTestCaseReader.java
@@ -63,8 +63,8 @@
     }
 
     public static class Board extends TestSection {
-        Point gridSize;
-        String board;
+        public Point gridSize;
+        public String board;
 
         public Board(Point gridSize, String board) {
             super(State.BOARD);
@@ -127,7 +127,7 @@
         }
     }
 
-    List<TestSection> parse() {
+    public List<TestSection> parse() {
         List<TestSection> sections = new ArrayList<>();
         String[] lines = mTest.split("\n");
         Iterator<String> it = Arrays.stream(lines).iterator();
diff --git a/tests/src/com/android/launcher3/celllayout/CellLayoutTestUtils.java b/tests/src/com/android/launcher3/celllayout/CellLayoutTestUtils.java
index b6c55af..86a7bd3 100644
--- a/tests/src/com/android/launcher3/celllayout/CellLayoutTestUtils.java
+++ b/tests/src/com/android/launcher3/celllayout/CellLayoutTestUtils.java
@@ -42,7 +42,7 @@
                         params.getCellX(), params.getCellY(),
                         launcher.getWorkspace().getIdForScreen(cellLayout), CONTAINER_DESKTOP);
                 int screenId = pos.screenId;
-                if (screenId > boards.size() - 1) {
+                for (int j = boards.size(); j <= screenId; j++) {
                     boards.add(new CellLayoutBoard(cellLayout.getCountX(), cellLayout.getCountY()));
                 }
                 CellLayoutBoard board = boards.get(screenId);
diff --git a/tests/src/com/android/launcher3/icons/FastBitmapDrawableTest.java b/tests/src/com/android/launcher3/icons/FastBitmapDrawableTest.java
new file mode 100644
index 0000000..038c98b
--- /dev/null
+++ b/tests/src/com/android/launcher3/icons/FastBitmapDrawableTest.java
@@ -0,0 +1,329 @@
+/*
+ * Copyright (C) 2023 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.icons;
+
+import static com.android.launcher3.icons.FastBitmapDrawable.CLICK_FEEDBACK_DURATION;
+import static com.android.launcher3.icons.FastBitmapDrawable.HOVERED_SCALE;
+import static com.android.launcher3.icons.FastBitmapDrawable.HOVER_FEEDBACK_DURATION;
+import static com.android.launcher3.icons.FastBitmapDrawable.PRESSED_SCALE;
+import static com.android.launcher3.icons.FastBitmapDrawable.SCALE;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.clearInvocations;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.graphics.Bitmap;
+import android.view.animation.AccelerateInterpolator;
+import android.view.animation.DecelerateInterpolator;
+import android.view.animation.PathInterpolator;
+
+import androidx.test.annotation.UiThreadTest;
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Spy;
+
+/**
+ * Tests for FastBitmapDrawable.
+ */
+@SmallTest
+@UiThreadTest
+@RunWith(AndroidJUnit4.class)
+public class FastBitmapDrawableTest {
+    private static final float EPSILON = 0.00001f;
+
+    @Spy
+    FastBitmapDrawable mFastBitmapDrawable =
+            spy(new FastBitmapDrawable(Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888)));
+
+    @Before
+    public void setUp() {
+        FastBitmapDrawable.setFlagHoverEnabled(true);
+        when(mFastBitmapDrawable.isVisible()).thenReturn(true);
+        mFastBitmapDrawable.mIsPressed = false;
+        mFastBitmapDrawable.mIsHovered = false;
+        mFastBitmapDrawable.resetScale();
+    }
+
+    @Test
+    public void testOnStateChange_noState() {
+        int[] state = new int[]{};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No scale changes without state change.
+        assertFalse("State change handled.", isHandled);
+        assertNull("Scale animation not null.", mFastBitmapDrawable.mScaleAnimation);
+    }
+
+    @Test
+    public void testOnStateChange_statePressed() {
+        int[] state = new int[]{android.R.attr.state_pressed};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to state pressed.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.", mFastBitmapDrawable.mScaleAnimation.getDuration(),
+                CLICK_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), PRESSED_SCALE, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator()
+                        instanceof AccelerateInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateHovered() {
+        int[] state = new int[]{android.R.attr.state_hovered};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to state hovered.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.", mFastBitmapDrawable.mScaleAnimation.getDuration(),
+                HOVER_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), HOVERED_SCALE, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator() instanceof PathInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateHoveredFlagDisabled() {
+        FastBitmapDrawable.setFlagHoverEnabled(false);
+        int[] state = new int[]{android.R.attr.state_hovered};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No state change with flag disabled.
+        assertFalse("Hover state change handled with flag disabled.", isHandled);
+        assertNull("Animation should not run with hover flag disabled.",
+                mFastBitmapDrawable.mScaleAnimation);
+    }
+
+    @Test
+    public void testOnStateChange_statePressedAndHovered() {
+        int[] state = new int[]{android.R.attr.state_pressed, android.R.attr.state_hovered};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to pressed state only.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.", mFastBitmapDrawable.mScaleAnimation.getDuration(),
+                CLICK_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), PRESSED_SCALE, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator()
+                        instanceof AccelerateInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateHoveredAndPressed() {
+        int[] state = new int[]{android.R.attr.state_hovered, android.R.attr.state_pressed};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to pressed state only.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.", mFastBitmapDrawable.mScaleAnimation.getDuration(),
+                CLICK_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), PRESSED_SCALE, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator()
+                        instanceof AccelerateInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateHoveredAndPressedToPressed() {
+        mFastBitmapDrawable.mIsPressed = true;
+        mFastBitmapDrawable.mIsHovered = true;
+        SCALE.setValue(mFastBitmapDrawable, PRESSED_SCALE);
+        int[] state = new int[]{android.R.attr.state_pressed};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No scale change from pressed state to pressed state.
+        assertTrue("State not changed.", isHandled);
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), PRESSED_SCALE, EPSILON);
+    }
+
+    @Test
+    public void testOnStateChange_stateHoveredAndPressedToHovered() {
+        mFastBitmapDrawable.mIsPressed = true;
+        mFastBitmapDrawable.mIsHovered = true;
+        SCALE.setValue(mFastBitmapDrawable, PRESSED_SCALE);
+        int[] state = new int[]{android.R.attr.state_hovered};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No scale change from pressed state to hovered state.
+        assertTrue("State not changed.", isHandled);
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), HOVERED_SCALE, EPSILON);
+    }
+
+    @Test
+    public void testOnStateChange_stateHoveredToPressed() {
+        mFastBitmapDrawable.mIsHovered = true;
+        SCALE.setValue(mFastBitmapDrawable, HOVERED_SCALE);
+        int[] state = new int[]{android.R.attr.state_pressed};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No scale change from pressed state to hovered state.
+        assertTrue("State not changed.", isHandled);
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), PRESSED_SCALE, EPSILON);
+    }
+
+    @Test
+    public void testOnStateChange_statePressedToHovered() {
+        mFastBitmapDrawable.mIsPressed = true;
+        SCALE.setValue(mFastBitmapDrawable, PRESSED_SCALE);
+        int[] state = new int[]{android.R.attr.state_hovered};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No scale change from pressed state to hovered state.
+        assertTrue("State not changed.", isHandled);
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), HOVERED_SCALE, EPSILON);
+    }
+
+    @Test
+    public void testOnStateChange_stateDefaultFromPressed() {
+        mFastBitmapDrawable.mIsPressed = true;
+        SCALE.setValue(mFastBitmapDrawable, PRESSED_SCALE);
+        int[] state = new int[]{};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to default state from pressed state.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.", mFastBitmapDrawable.mScaleAnimation.getDuration(),
+                CLICK_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.", (float) SCALE.get(mFastBitmapDrawable), 1f, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator()
+                        instanceof DecelerateInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateDefaultFromHovered() {
+        mFastBitmapDrawable.mIsHovered = true;
+        SCALE.setValue(mFastBitmapDrawable, HOVERED_SCALE);
+        int[] state = new int[]{};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to default state from hovered state.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.", mFastBitmapDrawable.mScaleAnimation.getDuration(),
+                HOVER_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.", (float) SCALE.get(mFastBitmapDrawable), 1f, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator() instanceof PathInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateHoveredWhilePartiallyScaled() {
+        SCALE.setValue(mFastBitmapDrawable, 0.5f);
+        int[] state = new int[]{android.R.attr.state_hovered};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to hovered state from midway to pressed state.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.",
+                mFastBitmapDrawable.mScaleAnimation.getDuration(), HOVER_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), HOVERED_SCALE, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator() instanceof PathInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_statePressedWhilePartiallyScaled() {
+        SCALE.setValue(mFastBitmapDrawable, 0.5f);
+        int[] state = new int[]{android.R.attr.state_pressed};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to pressed state from midway to hovered state.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.",
+                mFastBitmapDrawable.mScaleAnimation.getDuration(), CLICK_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), PRESSED_SCALE, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator()
+                        instanceof AccelerateInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateDefaultFromPressedNotVisible() {
+        when(mFastBitmapDrawable.isVisible()).thenReturn(false);
+        mFastBitmapDrawable.mIsPressed = true;
+        SCALE.setValue(mFastBitmapDrawable, PRESSED_SCALE);
+        clearInvocations(mFastBitmapDrawable);
+        int[] state = new int[]{};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No animations when state was pressed but drawable no longer visible. Set values directly.
+        assertTrue("State change not handled.", isHandled);
+        assertNull("Scale animation not null.", mFastBitmapDrawable.mScaleAnimation);
+        assertEquals("End value not correct.", (float) SCALE.get(mFastBitmapDrawable), 1f, EPSILON);
+        verify(mFastBitmapDrawable).invalidateSelf();
+    }
+
+    @Test
+    public void testOnStateChange_stateDefaultFromHoveredNotVisible() {
+        when(mFastBitmapDrawable.isVisible()).thenReturn(false);
+        mFastBitmapDrawable.mIsHovered = true;
+        SCALE.setValue(mFastBitmapDrawable, HOVERED_SCALE);
+        clearInvocations(mFastBitmapDrawable);
+        int[] state = new int[]{};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No animations when state was hovered but drawable no longer visible. Set values directly.
+        assertTrue("State change not handled.", isHandled);
+        assertNull("Scale animation not null.", mFastBitmapDrawable.mScaleAnimation);
+        assertEquals("End value not correct.", (float) SCALE.get(mFastBitmapDrawable), 1f, EPSILON);
+        verify(mFastBitmapDrawable).invalidateSelf();
+    }
+}
diff --git a/tests/src/com/android/launcher3/nonquickstep/HotseatWidthCalculationTest.kt b/tests/src/com/android/launcher3/nonquickstep/HotseatWidthCalculationTest.kt
index 2a27487..d102397 100644
--- a/tests/src/com/android/launcher3/nonquickstep/HotseatWidthCalculationTest.kt
+++ b/tests/src/com/android/launcher3/nonquickstep/HotseatWidthCalculationTest.kt
@@ -158,4 +158,25 @@
         assertThat(dp.isQsbInline).isFalse()
         assertThat(dp.hotseatQsbWidth).isEqualTo(1095)
     }
+
+    @Test
+    fun border_space_should_be_zero_when_numHotseatIcons_is_smallerOrEqual_1() {
+        initializeVarsForTablet(isGestureMode = false)
+        windowBounds = WindowBounds(Rect(0, 0, 1800, 2560), Rect(0, 104, 0, 0))
+
+        val numShownHotseatIcons = listOf(-1, 0, 1)
+        for (numHotseatIcons in numShownHotseatIcons) {
+            inv?.numShownHotseatIcons = numHotseatIcons
+
+            val dp = newDP()
+            dp.isTaskbarPresentInApps = true
+
+            assertThat(dp.numShownHotseatIcons).isEqualTo(numHotseatIcons)
+            assertThat(dp.hotseatBorderSpace).isEqualTo(0)
+
+            assertThat(dp.getHotseatLayoutPadding(context).left).isEqualTo(177)
+            assertThat(dp.getHotseatLayoutPadding(context).right).isEqualTo(177)
+            assertThat(dp.hotseatQsbWidth).isEqualTo(1445)
+        }
+    }
 }
diff --git a/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java b/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
index 8fac53d..5240e6a 100644
--- a/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
+++ b/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
@@ -68,7 +68,6 @@
 import com.android.launcher3.util.rule.SamplerRule;
 import com.android.launcher3.util.rule.ScreenRecordRule;
 import com.android.launcher3.util.rule.ShellCommandRule;
-import com.android.launcher3.util.rule.TestIsolationRule;
 import com.android.launcher3.util.rule.TestStabilityRule;
 import com.android.launcher3.util.rule.ViewCaptureRule;
 
@@ -124,10 +123,6 @@
                 }, DEFAULT_UI_TIMEOUT, launcher);
     }
 
-    public void checkDetectedLeaks() {
-        checkDetectedLeaks(mLauncher);
-    }
-
     private static String getActivityLeakErrorMessage(LauncherInstrumentation launcher) {
         sActivityLeakReported = true;
         return "Activity leak detector has found leaked activities, "
@@ -220,8 +215,7 @@
 
     @Rule
     public TestRule mOrderSensitiveRules = RuleChain
-            .outerRule(new TestIsolationRule(this))
-            .around(new SamplerRule())
+            .outerRule(new SamplerRule())
             .around(new TestStabilityRule())
             .around(getRulesInsideActivityMonitor());
 
@@ -494,12 +488,6 @@
     }
 
     protected void closeLauncherActivity() {
-        finishLauncherActivity();
-        waitForLauncherCondition(
-                "Launcher still active", launcher -> launcher == null, DEFAULT_UI_TIMEOUT);
-    }
-
-    public void finishLauncherActivity() {
         // Destroy Launcher activity.
         executeOnLauncher(launcher -> {
             if (launcher != null) {
@@ -507,6 +495,8 @@
                 launcher.finish();
             }
         });
+        waitForLauncherCondition(
+                "Launcher still active", launcher -> launcher == null, DEFAULT_UI_TIMEOUT);
     }
 
     protected boolean isInLaunchedApp(Launcher launcher) {
diff --git a/tests/src/com/android/launcher3/ui/TaplTestsLauncher3.java b/tests/src/com/android/launcher3/ui/TaplTestsLauncher3.java
index 168ed9f..e12cf2d 100644
--- a/tests/src/com/android/launcher3/ui/TaplTestsLauncher3.java
+++ b/tests/src/com/android/launcher3/ui/TaplTestsLauncher3.java
@@ -395,6 +395,28 @@
         }
     }
 
+    @Test
+    public void testLaunchHomeScreenMenuItem() {
+        // Drag the test app icon to home screen and open short cut menu from the icon
+        final HomeAllApps allApps = mLauncher.getWorkspace().switchToAllApps();
+        allApps.freeze();
+        try {
+            allApps.getAppIcon(APP_NAME).dragToWorkspace(false, false);
+            final AppIconMenu menu = mLauncher.getWorkspace().getWorkspaceAppIcon(
+                    APP_NAME).openDeepShortcutMenu();
+
+            executeOnLauncher(
+                    launcher -> assertTrue("Launcher internal state didn't switch to Showing Menu",
+                            isOptionsPopupVisible(launcher)));
+
+            final AppIconMenuItem menuItem = menu.getMenuItem(1);
+            assertEquals("Wrong menu item", "Shortcut 2", menuItem.getText());
+            menuItem.launch(getAppPackageName());
+        } finally {
+            allApps.unfreeze();
+        }
+    }
+
     @PlatinumTest(focusArea = "launcher")
     @Test
     @PortraitLandscape
diff --git a/tests/src/com/android/launcher3/util/TestUtil.java b/tests/src/com/android/launcher3/util/TestUtil.java
index 4cd6c53..21059e6 100644
--- a/tests/src/com/android/launcher3/util/TestUtil.java
+++ b/tests/src/com/android/launcher3/util/TestUtil.java
@@ -67,6 +67,7 @@
     private static final String TAG = "TestUtil";
 
     public static final String DUMMY_PACKAGE = "com.example.android.aardwolf";
+    public static final String DUMMY_CLASS_NAME = "com.example.android.aardwolf.Activity1";
     public static final long DEFAULT_UI_TIMEOUT = 10000;
 
     public static void installDummyApp() throws IOException {
diff --git a/tests/src/com/android/launcher3/util/rule/TestIsolationRule.java b/tests/src/com/android/launcher3/util/rule/TestIsolationRule.java
deleted file mode 100644
index d4bfa6b..0000000
--- a/tests/src/com/android/launcher3/util/rule/TestIsolationRule.java
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright (C) 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.launcher3.util.rule;
-
-import androidx.annotation.NonNull;
-
-import com.android.launcher3.ui.AbstractLauncherUiTest;
-
-import org.junit.rules.TestRule;
-import org.junit.runner.Description;
-import org.junit.runners.model.Statement;
-
-/**
- * Isolates tests from some of the state created by the previous test.
- */
-public class TestIsolationRule implements TestRule {
-    final AbstractLauncherUiTest mTest;
-
-    public TestIsolationRule(AbstractLauncherUiTest test) {
-        mTest = test;
-    }
-
-    @NonNull
-    @Override
-    public Statement apply(@NonNull Statement base, @NonNull Description description) {
-        return new Statement() {
-            @Override
-            public void evaluate() throws Throwable {
-                mTest.finishLauncherActivity();
-                mTest.checkDetectedLeaks();
-                try {
-                    base.evaluate();
-                } finally {
-                    mTest.finishLauncherActivity();
-                }
-                mTest.checkDetectedLeaks();
-            }
-        };
-    }
-}
diff --git a/tests/src/com/android/launcher3/util/viewcapture_analysis/FlashDetector.java b/tests/src/com/android/launcher3/util/viewcapture_analysis/FlashDetector.java
index eef1bc8..388a59a 100644
--- a/tests/src/com/android/launcher3/util/viewcapture_analysis/FlashDetector.java
+++ b/tests/src/com/android/launcher3/util/viewcapture_analysis/FlashDetector.java
@@ -38,9 +38,6 @@
 
     private static final IgnoreNode IGNORED_NODES_ROOT = buildIgnoreNodesTree(List.of(
             CONTENT + "LauncherRootView:id/launcher|FloatingIconView",
-            DRAG_LAYER
-                    + "SearchContainerView:id/apps_view|AllAppsRecyclerView:id/apps_list_view"
-                    + "|BubbleTextView:id/icon",
             DRAG_LAYER + "LauncherRecentsView:id/overview_panel|TaskView|TextView",
             DRAG_LAYER
                     + "LauncherAllAppsContainerView:id/apps_view|AllAppsRecyclerView:id"
@@ -58,7 +55,11 @@
                     + "|WidgetCellPreview:id/widget_preview_container|ImageView:id/widget_badge",
             RECENTS_DRAG_LAYER + "FallbackRecentsView:id/overview_panel|TaskView|IconView:id/icon",
             DRAG_LAYER + "SearchContainerView:id/apps_view",
-            DRAG_LAYER + "LauncherDragView"
+            DRAG_LAYER + "LauncherDragView",
+            DRAG_LAYER + "FloatingTaskView|FloatingTaskThumbnailView:id/thumbnail",
+            DRAG_LAYER
+                    + "WidgetsFullSheet|SpringRelativeLayout:id/container|WidgetsRecyclerView:id"
+                    + "/primary_widgets_list_view|WidgetsListHeader:id/widgets_list_header"
     ));
 
     // Per-AnalysisNode data that's specific to this detector.
diff --git a/tests/tapl/com/android/launcher3/tapl/AllApps.java b/tests/tapl/com/android/launcher3/tapl/AllApps.java
index 23d09d4..fb08ea4 100644
--- a/tests/tapl/com/android/launcher3/tapl/AllApps.java
+++ b/tests/tapl/com/android/launcher3/tapl/AllApps.java
@@ -336,4 +336,11 @@
         final Bundle testInfo = mLauncher.getTestInfo(TestProtocol.REQUEST_APP_LIST_FREEZE_FLAGS);
         return testInfo == null ? 0 : testInfo.getInt(TestProtocol.TEST_INFO_RESPONSE_FIELD);
     }
+
+    /**
+     * Return the QSB UI object on the AllApps screen.
+     * @return the QSB UI object.
+     */
+    @NonNull
+    public abstract Qsb getQsb();
 }
\ No newline at end of file
diff --git a/tests/tapl/com/android/launcher3/tapl/AllAppsFromTaskbar.java b/tests/tapl/com/android/launcher3/tapl/AllAppsFromTaskbar.java
index c4744a1..0e0291f 100644
--- a/tests/tapl/com/android/launcher3/tapl/AllAppsFromTaskbar.java
+++ b/tests/tapl/com/android/launcher3/tapl/AllAppsFromTaskbar.java
@@ -62,4 +62,10 @@
         return mLauncher.getTestInfo(TestProtocol.REQUEST_TASKBAR_APPS_LIST_SCROLL_Y)
                 .getInt(TestProtocol.TEST_INFO_RESPONSE_FIELD);
     }
+
+    @NonNull
+    @Override
+    public TaskbarAllAppsQsb getQsb() {
+        return new TaskbarAllAppsQsb(mLauncher, verifyActiveContainer());
+    }
 }
diff --git a/tests/tapl/com/android/launcher3/tapl/AllAppsQsb.java b/tests/tapl/com/android/launcher3/tapl/AllAppsQsb.java
index 0931cd4..1692351 100644
--- a/tests/tapl/com/android/launcher3/tapl/AllAppsQsb.java
+++ b/tests/tapl/com/android/launcher3/tapl/AllAppsQsb.java
@@ -22,16 +22,7 @@
  */
 class AllAppsQsb extends Qsb {
 
-    private final UiObject2 mAllAppsContainer;
-
     AllAppsQsb(LauncherInstrumentation launcher, UiObject2 allAppsContainer) {
-        super(launcher);
-        mAllAppsContainer = allAppsContainer;
-        waitForQsbObject();
-    }
-
-    @Override
-    protected UiObject2 waitForQsbObject() {
-        return mLauncher.waitForObjectInContainer(mAllAppsContainer, "search_container_all_apps");
+        super(launcher, allAppsContainer, "search_container_all_apps");
     }
 }
diff --git a/tests/tapl/com/android/launcher3/tapl/HomeAllApps.java b/tests/tapl/com/android/launcher3/tapl/HomeAllApps.java
index a03472a..33c6334 100644
--- a/tests/tapl/com/android/launcher3/tapl/HomeAllApps.java
+++ b/tests/tapl/com/android/launcher3/tapl/HomeAllApps.java
@@ -117,11 +117,8 @@
         }
     }
 
-    /**
-     * Return the QSB UI object on the AllApps screen.
-     * @return the QSB UI object.
-     */
     @NonNull
+    @Override
     public Qsb getQsb() {
         return new AllAppsQsb(mLauncher, verifyActiveContainer());
     }
diff --git a/tests/tapl/com/android/launcher3/tapl/HomeQsb.java b/tests/tapl/com/android/launcher3/tapl/HomeQsb.java
index 20d09a1..5385c65 100644
--- a/tests/tapl/com/android/launcher3/tapl/HomeQsb.java
+++ b/tests/tapl/com/android/launcher3/tapl/HomeQsb.java
@@ -22,16 +22,7 @@
  */
 class HomeQsb extends Qsb {
 
-    private final UiObject2 mHotSeat;
-
     HomeQsb(LauncherInstrumentation launcher, UiObject2 hotseat) {
-        super(launcher);
-        mHotSeat = hotseat;
-        waitForQsbObject();
-    }
-
-    @Override
-    protected UiObject2 waitForQsbObject() {
-        return mLauncher.waitForObjectInContainer(mHotSeat, "search_container_hotseat");
+        super(launcher, hotseat, "search_container_hotseat");
     }
 }
diff --git a/tests/tapl/com/android/launcher3/tapl/Qsb.java b/tests/tapl/com/android/launcher3/tapl/Qsb.java
index 6bc4f21..7f3f61d 100644
--- a/tests/tapl/com/android/launcher3/tapl/Qsb.java
+++ b/tests/tapl/com/android/launcher3/tapl/Qsb.java
@@ -30,13 +30,21 @@
     private static final String ASSISTANT_APP_PACKAGE = "com.google.android.googlequicksearchbox";
     private static final String ASSISTANT_ICON_RES_ID = "mic_icon";
     protected final LauncherInstrumentation mLauncher;
+    private final UiObject2 mContainer;
+    private final String mQsbResName;
 
-    protected Qsb(LauncherInstrumentation launcher) {
+    protected Qsb(LauncherInstrumentation launcher, UiObject2 container, String qsbResName) {
         mLauncher = launcher;
+        mContainer = container;
+        mQsbResName = qsbResName;
+        waitForQsbObject();
     }
 
     // Waits for the quick search box.
-    protected abstract UiObject2 waitForQsbObject();
+    private UiObject2 waitForQsbObject() {
+        return mLauncher.waitForObjectInContainer(mContainer, mQsbResName);
+    }
+
     /**
      * Launch assistant app by tapping mic icon on qsb.
      */
@@ -79,8 +87,12 @@
             mLauncher.waitForIdle();
             try (LauncherInstrumentation.Closable c2 = mLauncher.addContextLayer(
                     "clicked qsb to open search result page")) {
-                return new SearchResultFromQsb(mLauncher);
+                return createSearchResult();
             }
         }
     }
+
+    protected SearchResultFromQsb createSearchResult() {
+        return new SearchResultFromQsb(mLauncher);
+    }
 }
diff --git a/tests/tapl/com/android/launcher3/tapl/SearchResultFromQsb.java b/tests/tapl/com/android/launcher3/tapl/SearchResultFromQsb.java
index 80176e9..8c3402f 100644
--- a/tests/tapl/com/android/launcher3/tapl/SearchResultFromQsb.java
+++ b/tests/tapl/com/android/launcher3/tapl/SearchResultFromQsb.java
@@ -32,7 +32,7 @@
 
     // This particular ID change should happen with caution
     private static final String SEARCH_CONTAINER_RES_ID = "search_results_list_view";
-    private final LauncherInstrumentation mLauncher;
+    protected final LauncherInstrumentation mLauncher;
 
     SearchResultFromQsb(LauncherInstrumentation launcher) {
         mLauncher = launcher;
@@ -49,8 +49,12 @@
     }
 
     /** Find the app from search results with app name. */
-    public Launchable findAppIcon(String appName) {
+    public AppIcon findAppIcon(String appName) {
         UiObject2 icon = mLauncher.waitForLauncherObject(By.clazz(TextView.class).text(appName));
+        return createAppIcon(icon);
+    }
+
+    protected AppIcon createAppIcon(UiObject2 icon) {
         return new AllAppsAppIcon(mLauncher, icon);
     }
 
diff --git a/tests/tapl/com/android/launcher3/tapl/SearchResultFromTaskbarQsb.java b/tests/tapl/com/android/launcher3/tapl/SearchResultFromTaskbarQsb.java
new file mode 100644
index 0000000..c267c9e
--- /dev/null
+++ b/tests/tapl/com/android/launcher3/tapl/SearchResultFromTaskbarQsb.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2023 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.tapl;
+
+import androidx.test.uiautomator.UiObject2;
+
+/**
+ * Operations on search result page opened from Taskbar qsb.
+ */
+public class SearchResultFromTaskbarQsb extends SearchResultFromQsb {
+
+    SearchResultFromTaskbarQsb(LauncherInstrumentation launcher) {
+        super(launcher);
+    }
+
+    @Override
+    public TaskbarAppIcon findAppIcon(String appName) {
+        return (TaskbarAppIcon) super.findAppIcon(appName);
+    }
+
+    @Override
+    protected TaskbarAppIcon createAppIcon(UiObject2 icon) {
+        return new TaskbarAppIcon(mLauncher, icon);
+    }
+}
diff --git a/tests/tapl/com/android/launcher3/tapl/TaskbarAllAppsQsb.java b/tests/tapl/com/android/launcher3/tapl/TaskbarAllAppsQsb.java
new file mode 100644
index 0000000..7cecd3e
--- /dev/null
+++ b/tests/tapl/com/android/launcher3/tapl/TaskbarAllAppsQsb.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2023 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.tapl;
+
+import androidx.test.uiautomator.UiObject2;
+
+/**
+ * Operations on Taskbar AllApp screen qsb.
+ */
+public class TaskbarAllAppsQsb extends Qsb {
+
+    TaskbarAllAppsQsb(LauncherInstrumentation launcher, UiObject2 allAppsContainer) {
+        super(launcher, allAppsContainer, "search_container_all_apps");
+    }
+
+    @Override
+    public SearchResultFromTaskbarQsb showSearchResult() {
+        return (SearchResultFromTaskbarQsb) super.showSearchResult();
+    }
+
+    @Override
+    protected SearchResultFromTaskbarQsb createSearchResult() {
+        return new SearchResultFromTaskbarQsb(mLauncher);
+    }
+}