diff --git a/Android.bp b/Android.bp
index b3027bc..0a55675 100644
--- a/Android.bp
+++ b/Android.bp
@@ -228,7 +228,7 @@
     ],
 }
 
-// Common source files used to build go launcher
+// Common source files used to build go launcher except go/src files
 filegroup {
     name: "launcher-go-src-no-build-config",
     srcs: [
@@ -236,8 +236,6 @@
         "src/**/*.kt",
         "quickstep/src/**/*.java",
         "quickstep/src/**/*.kt",
-        "go/src/**/*.java",
-        "go/src/**/*.kt",
         "go/quickstep/src/**/*.java",
         "go/quickstep/src/**/*.kt",
     ],
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index b459b2d..4f580e0 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -20,7 +20,7 @@
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.android.launcher3">
-    <uses-sdk android:targetSdkVersion="30" android:minSdkVersion="26"/>
+    <uses-sdk android:targetSdkVersion="33" android:minSdkVersion="26"/>
     <!--
     Manifest entries specific to Launcher3. This is merged with AndroidManifest-common.xml.
     Refer comments around specific entries on how to extend individual components.
diff --git a/go/src/com/android/launcher3/util/AbsGridOccupancy.java b/go/src/com/android/launcher3/util/AbsGridOccupancy.java
new file mode 100644
index 0000000..4a46bd1
--- /dev/null
+++ b/go/src/com/android/launcher3/util/AbsGridOccupancy.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3.util;
+
+/**
+ * Defines method to find the next vacant cell on a grid.
+ * This uses the default top-down, left-right approach and can be over-written through
+ * code swaps in different launchers.
+ */
+public abstract class AbsGridOccupancy {
+
+    /**
+     * Find the first vacant cell, if there is one.
+     *
+     * @param vacantOut Holds the x and y coordinate of the vacant cell
+     * @param spanX Horizontal cell span.
+     * @param spanY Vertical cell span.
+     *
+     * @return true if a vacant cell was found
+     */
+    protected boolean findVacantCell(int[] vacantOut, boolean[][] cells, int countX, int countY,
+            int spanX, int spanY) {
+        for (int y = 0; (y + spanY) <= countY; y++) {
+            for (int x = 0; (x + spanX) <= countX; x++) {
+                boolean available = !cells[x][y];
+                out:
+                for (int i = x; i < x + spanX; i++) {
+                    for (int j = y; j < y + spanY; j++) {
+                        available = available && !cells[i][j];
+                        if (!available) break out;
+                    }
+                }
+                if (available) {
+                    vacantOut[0] = x;
+                    vacantOut[1] = y;
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+}
diff --git a/protos/launcher_atom.proto b/protos/launcher_atom.proto
index cf854ed..10eedc8 100644
--- a/protos/launcher_atom.proto
+++ b/protos/launcher_atom.proto
@@ -76,6 +76,9 @@
 
 // Represents the apps list sorted alphabetically inside the all-apps view.
 message AllAppsContainer {
+  oneof ParentContainer {
+    TaskBarContainer taskbar_container = 1;
+  }
 }
 
 message WidgetsContainer {
@@ -83,6 +86,9 @@
 
 // Represents the predicted apps row(top row) in the all-apps view.
 message PredictionContainer {
+  oneof ParentContainer {
+    TaskBarContainer taskbar_container = 1;
+  }
 }
 
 // Represents the apps container within search results.
diff --git a/quickstep/AndroidManifest-launcher.xml b/quickstep/AndroidManifest-launcher.xml
index 53910e3..a24a588 100644
--- a/quickstep/AndroidManifest-launcher.xml
+++ b/quickstep/AndroidManifest-launcher.xml
@@ -20,7 +20,7 @@
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.android.launcher3">
-    <uses-sdk android:targetSdkVersion="29" android:minSdkVersion="25"/>
+    <uses-sdk android:targetSdkVersion="33" android:minSdkVersion="26"/>
     <!--
     Manifest entries specific to Launcher3. This is merged with AndroidManifest-common.xml.
     Refer comments around specific entries on how to extend individual components.
diff --git a/quickstep/res/values/dimens.xml b/quickstep/res/values/dimens.xml
index 2b71768..3f08cf3 100644
--- a/quickstep/res/values/dimens.xml
+++ b/quickstep/res/values/dimens.xml
@@ -26,7 +26,7 @@
     <dimen name="task_menu_corner_radius">22dp</dimen>
     <dimen name="task_menu_item_corner_radius">4dp</dimen>
     <dimen name="task_menu_spacing">2dp</dimen>
-    <dimen name="task_menu_width_grid">234dp</dimen>
+    <dimen name="task_menu_width_grid">216dp</dimen>
     <dimen name="task_menu_horizontal_padding">8dp</dimen>
     <dimen name="overview_proactive_row_height">48dp</dimen>
     <dimen name="overview_proactive_row_bottom_margin">16dp</dimen>
diff --git a/quickstep/src/com/android/launcher3/proxy/StartActivityParams.java b/quickstep/src/com/android/launcher3/proxy/StartActivityParams.java
index bee8bb8..b47ef47 100644
--- a/quickstep/src/com/android/launcher3/proxy/StartActivityParams.java
+++ b/quickstep/src/com/android/launcher3/proxy/StartActivityParams.java
@@ -16,6 +16,10 @@
 
 package com.android.launcher3.proxy;
 
+import static android.app.PendingIntent.FLAG_MUTABLE;
+import static android.app.PendingIntent.FLAG_ONE_SHOT;
+import static android.app.PendingIntent.FLAG_UPDATE_CURRENT;
+
 import android.app.Activity;
 import android.app.PendingIntent;
 import android.app.PendingIntent.CanceledException;
@@ -45,7 +49,7 @@
 
     public StartActivityParams(Activity activity, int requestCode) {
         this(activity.createPendingResult(requestCode, new Intent(),
-                PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT), requestCode);
+                FLAG_ONE_SHOT | FLAG_UPDATE_CURRENT | FLAG_MUTABLE), requestCode);
     }
 
     public StartActivityParams(PendingIntent pendingIntent, int requestCode) {
diff --git a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
index 175a1d9..f65b907 100644
--- a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
@@ -210,7 +210,7 @@
                 0, 1));
         // Center nav buttons in new height for IME.
         float transForIme = (mContext.getDeviceProfile().taskbarSize
-                - mContext.getTaskbarHeightForIme()) / 2f;
+                - mControllers.taskbarInsetsController.getTaskbarHeightForIme()) / 2f;
         // For gesture nav, nav buttons only show for IME anyway so keep them translated down.
         float defaultButtonTransY = alwaysShowButtons ? 0 : transForIme;
         mPropertyHolders.add(new StatePropertyHolder(mTaskbarNavButtonTranslationYForIme,
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index 89e54b8..9561b74 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -27,9 +27,6 @@
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_FOLDER_OPEN;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_NOTIFICATION_PANEL_EXPANDED;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_QUICK_SETTINGS_EXPANDED;
-import static com.android.systemui.shared.system.WindowManagerWrapper.ITYPE_BOTTOM_TAPPABLE_ELEMENT;
-import static com.android.systemui.shared.system.WindowManagerWrapper.ITYPE_EXTRA_NAVIGATION_BAR;
-import static com.android.systemui.shared.system.WindowManagerWrapper.ITYPE_SIZE;
 
 import android.animation.AnimatorSet;
 import android.app.ActivityOptions;
@@ -39,7 +36,6 @@
 import android.content.pm.ActivityInfo.Config;
 import android.content.pm.LauncherApps;
 import android.content.res.Resources;
-import android.graphics.Insets;
 import android.graphics.PixelFormat;
 import android.graphics.Rect;
 import android.os.Process;
@@ -88,7 +84,6 @@
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.rotation.RotationButtonController;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
-import com.android.systemui.shared.system.WindowManagerWrapper;
 import com.android.systemui.unfold.util.ScopedUnfoldTransitionProgressProvider;
 
 import java.io.PrintWriter;
@@ -113,7 +108,6 @@
 
     private final WindowManager mWindowManager;
     private final @Nullable RoundedCorner mLeftCorner, mRightCorner;
-    private final int mTaskbarHeightForIme;
     private WindowManager.LayoutParams mWindowLayoutParams;
     private boolean mIsFullscreen;
     // The size we should return to when we call setTaskbarWindowFullscreen(false)
@@ -154,7 +148,6 @@
                 Settings.Secure.getUriFor(Settings.Secure.NAV_BAR_KIDS_MODE), 0);
 
         updateIconSize(resources);
-        mTaskbarHeightForIme = resources.getDimensionPixelSize(R.dimen.taskbar_ime_size);
 
         // Get display and corners first, as views might use them in constructor.
         Display display = windowContext.getDisplay();
@@ -202,29 +195,14 @@
                 new TaskbarAutohideSuspendController(this),
                 new TaskbarPopupController(this),
                 new TaskbarForceVisibleImmersiveController(this),
-                new TaskbarAllAppsController(this));
+                new TaskbarAllAppsController(this),
+                new TaskbarInsetsController(this));
     }
 
     public void init(TaskbarSharedState sharedState) {
         mLastRequestedNonFullscreenHeight = getDefaultTaskbarWindowHeight();
         mWindowLayoutParams = createDefaultWindowLayoutParams();
 
-        WindowManagerWrapper wmWrapper = WindowManagerWrapper.getInstance();
-        wmWrapper.setProvidesInsetsTypes(
-                mWindowLayoutParams,
-                new int[] { ITYPE_EXTRA_NAVIGATION_BAR, ITYPE_BOTTOM_TAPPABLE_ELEMENT }
-        );
-        // Adjust the frame by the rounded corners (ie. leaving just the bar as the inset) when
-        // the IME is showing
-        mWindowLayoutParams.providedInternalImeInsets = new Insets[ITYPE_SIZE];
-        final Insets reducingSize = Insets.of(0,
-                getDefaultTaskbarWindowHeight() - mTaskbarHeightForIme, 0, 0);
-        mWindowLayoutParams.providedInternalImeInsets[ITYPE_EXTRA_NAVIGATION_BAR] = reducingSize;
-        mWindowLayoutParams.providedInternalImeInsets[ITYPE_BOTTOM_TAPPABLE_ELEMENT] =
-                reducingSize;
-
-        mWindowLayoutParams.insetsRoundedCornerFrame = true;
-
         // Initialize controllers after all are constructed.
         mControllers.init(sharedState);
         updateSysuiStateFlags(sharedState.sysuiStateFlags, true /* fromInit */);
@@ -304,6 +282,10 @@
         return mRightCorner == null ? 0 : mRightCorner.getRadius();
     }
 
+    public WindowManager.LayoutParams getWindowLayoutParams() {
+        return mWindowLayoutParams;
+    }
+
     @Override
     public TaskbarDragLayer getDragLayer() {
         return mDragLayer;
@@ -380,6 +362,14 @@
             folderBuilder.clearHotseat();
             itemInfoBuilder.setContainerInfo(LauncherAtom.ContainerInfo.newBuilder()
                     .setFolder(folderBuilder));
+        } else if (oldContainer.hasAllAppsContainer()) {
+            itemInfoBuilder.setContainerInfo(LauncherAtom.ContainerInfo.newBuilder()
+                    .setAllAppsContainer(oldContainer.getAllAppsContainer().toBuilder()
+                            .setTaskbarContainer(LauncherAtom.TaskBarContainer.newBuilder())));
+        } else if (oldContainer.hasPredictionContainer()) {
+            itemInfoBuilder.setContainerInfo(LauncherAtom.ContainerInfo.newBuilder()
+                    .setPredictionContainer(oldContainer.getPredictionContainer().toBuilder()
+                            .setTaskbarContainer(LauncherAtom.TaskBarContainer.newBuilder())));
         }
     }
 
@@ -569,14 +559,7 @@
             }
         }
         mWindowLayoutParams.height = height;
-        final Insets reducingSize =
-                Insets.of(0, height - mTaskbarHeightForIme, 0, 0);
-        if (mWindowLayoutParams.providedInternalImeInsets == null) {
-            mWindowLayoutParams.providedInternalImeInsets = new Insets[ITYPE_SIZE];
-        }
-        mWindowLayoutParams.providedInternalImeInsets[ITYPE_EXTRA_NAVIGATION_BAR] = reducingSize;
-        mWindowLayoutParams.providedInternalImeInsets[ITYPE_BOTTOM_TAPPABLE_ELEMENT] =
-                reducingSize;
+        mControllers.taskbarInsetsController.onTaskbarWindowHeightChanged();
         mWindowManager.updateViewLayout(mDragLayer, mWindowLayoutParams);
     }
 
@@ -588,13 +571,6 @@
     }
 
     /**
-     * Returns the bottom insets taskbar provides to the IME when IME is visible.
-     */
-    public int getTaskbarHeightForIme() {
-        return mTaskbarHeightForIme;
-    }
-
-    /**
      * Either adds or removes {@link WindowManager.LayoutParams#FLAG_NOT_FOCUSABLE} on the taskbar
      * window.
      */
@@ -703,6 +679,7 @@
             }
         } else if (tag instanceof AppInfo) {
             startItemInfoActivity((AppInfo) tag);
+            mControllers.uiController.onTaskbarIconLaunched((AppInfo) tag);
         } else {
             Log.e(TAG, "Unknown type clicked: " + tag);
         }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
index a3586396..5d3a152 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
@@ -51,6 +51,7 @@
     public final TaskbarPopupController taskbarPopupController;
     public final TaskbarForceVisibleImmersiveController taskbarForceVisibleImmersiveController;
     public final TaskbarAllAppsController taskbarAllAppsController;
+    public final TaskbarInsetsController taskbarInsetsController;
 
     @Nullable private LoggableTaskbarController[] mControllersToLog = null;
 
@@ -76,7 +77,8 @@
             TaskbarAutohideSuspendController taskbarAutoHideSuspendController,
             TaskbarPopupController taskbarPopupController,
             TaskbarForceVisibleImmersiveController taskbarForceVisibleImmersiveController,
-            TaskbarAllAppsController taskbarAllAppsController) {
+            TaskbarAllAppsController taskbarAllAppsController,
+            TaskbarInsetsController taskbarInsetsController) {
         this.taskbarActivityContext = taskbarActivityContext;
         this.taskbarDragController = taskbarDragController;
         this.navButtonController = navButtonController;
@@ -94,6 +96,7 @@
         this.taskbarPopupController = taskbarPopupController;
         this.taskbarForceVisibleImmersiveController = taskbarForceVisibleImmersiveController;
         this.taskbarAllAppsController = taskbarAllAppsController;
+        this.taskbarInsetsController = taskbarInsetsController;
     }
 
     /**
@@ -119,13 +122,14 @@
         taskbarForceVisibleImmersiveController.init(this);
         taskbarAllAppsController.init(this, sharedState);
         navButtonController.init(this);
+        taskbarInsetsController.init(this);
 
         mControllersToLog = new LoggableTaskbarController[] {
                 taskbarDragController, navButtonController, navbarButtonsViewController,
                 taskbarDragLayerController, taskbarScrimViewController, taskbarViewController,
                 taskbarUnfoldAnimationController, taskbarKeyguardController,
                 stashedHandleViewController, taskbarStashController, taskbarEduController,
-                taskbarAutohideSuspendController, taskbarPopupController
+                taskbarAutohideSuspendController, taskbarPopupController, taskbarInsetsController
         };
 
         mAreAllControllersInitialized = true;
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayerController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayerController.java
index c7330d3..307f674 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayerController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayerController.java
@@ -15,18 +15,10 @@
  */
 package com.android.launcher3.taskbar;
 
-import static com.android.launcher3.AbstractFloatingView.TYPE_ALL;
-import static com.android.launcher3.AbstractFloatingView.TYPE_TASKBAR_ALL_APPS;
-import static com.android.systemui.shared.system.ViewTreeObserverWrapper.InsetsInfo.TOUCHABLE_INSETS_CONTENT;
-import static com.android.systemui.shared.system.ViewTreeObserverWrapper.InsetsInfo.TOUCHABLE_INSETS_FRAME;
-import static com.android.systemui.shared.system.ViewTreeObserverWrapper.InsetsInfo.TOUCHABLE_INSETS_REGION;
-
 import android.content.res.Resources;
 import android.graphics.Rect;
 
-import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.R;
-import com.android.launcher3.anim.AlphaUpdateListener;
 import com.android.launcher3.util.TouchController;
 import com.android.quickstep.AnimatedFloat;
 import com.android.systemui.shared.system.ViewTreeObserverWrapper.InsetsInfo;
@@ -168,37 +160,7 @@
          * @see InsetsInfo#setTouchableInsets(int)
          */
         public void updateInsetsTouchability(InsetsInfo insetsInfo) {
-            insetsInfo.touchableRegion.setEmpty();
-            // Always have nav buttons be touchable
-            mControllers.navbarButtonsViewController.addVisibleButtonsRegion(
-                    mTaskbarDragLayer, insetsInfo.touchableRegion);
-            boolean insetsIsTouchableRegion = true;
-
-            if (mTaskbarDragLayer.getAlpha() < AlphaUpdateListener.ALPHA_CUTOFF_THRESHOLD) {
-                // Let touches pass through us.
-                insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION);
-            } else if (mControllers.navbarButtonsViewController.isImeVisible()) {
-                insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION);
-            } else if (!mControllers.uiController.isTaskbarTouchable()) {
-                // Let touches pass through us.
-                insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION);
-            } else if (mControllers.taskbarDragController.isSystemDragInProgress()) {
-                // Let touches pass through us.
-                insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION);
-            } else if (AbstractFloatingView.getOpenView(mActivity, TYPE_TASKBAR_ALL_APPS) != null) {
-                // Let touches pass through us.
-                insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION);
-            } else if (mControllers.taskbarViewController.areIconsVisible()
-                    || AbstractFloatingView.getOpenView(mActivity, TYPE_ALL) != null
-                    || mActivity.isNavBarKidsModeActive()) {
-                // Taskbar has some touchable elements, take over the full taskbar area
-                insetsInfo.setTouchableInsets(mActivity.isTaskbarWindowFullscreen()
-                        ? TOUCHABLE_INSETS_FRAME : TOUCHABLE_INSETS_CONTENT);
-                insetsIsTouchableRegion = false;
-            } else {
-                insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION);
-            }
-            mActivity.excludeFromMagnificationRegion(insetsIsTouchableRegion);
+            mControllers.taskbarInsetsController.updateInsetsTouchability(insetsInfo);
         }
 
         /**
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt b/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt
new file mode 100644
index 0000000..a2ff780
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.taskbar
+
+import android.graphics.Insets
+import android.view.WindowManager
+import com.android.launcher3.AbstractFloatingView
+import com.android.launcher3.R
+import com.android.launcher3.anim.AlphaUpdateListener
+import com.android.launcher3.taskbar.TaskbarControllers.LoggableTaskbarController
+import com.android.quickstep.KtR
+import com.android.systemui.shared.system.ViewTreeObserverWrapper.InsetsInfo
+import com.android.systemui.shared.system.WindowManagerWrapper
+import com.android.systemui.shared.system.WindowManagerWrapper.*
+import java.io.PrintWriter
+
+/**
+ * Handles the insets that Taskbar provides to underlying apps and the IME.
+ */
+class TaskbarInsetsController(val context: TaskbarActivityContext): LoggableTaskbarController {
+
+    /** The bottom insets taskbar provides to the IME when IME is visible. */
+    val taskbarHeightForIme: Int = context.resources.getDimensionPixelSize(
+        KtR.dimen.taskbar_ime_size)
+
+    // Initialized in init.
+    private lateinit var controllers: TaskbarControllers
+    private lateinit var windowLayoutParams: WindowManager.LayoutParams
+
+    fun init(controllers: TaskbarControllers) {
+        this.controllers = controllers
+        windowLayoutParams = context.windowLayoutParams
+
+        val wmWrapper: WindowManagerWrapper = getInstance()
+        wmWrapper.setProvidesInsetsTypes(
+            windowLayoutParams,
+            intArrayOf(
+                ITYPE_EXTRA_NAVIGATION_BAR,
+                ITYPE_BOTTOM_TAPPABLE_ELEMENT
+            )
+        )
+
+        windowLayoutParams.providedInternalImeInsets = arrayOfNulls<Insets>(ITYPE_SIZE)
+
+        onTaskbarWindowHeightChanged()
+
+        windowLayoutParams.insetsRoundedCornerFrame = true
+    }
+
+    fun onTaskbarWindowHeightChanged() {
+        val reducingSize = Insets.of(0, windowLayoutParams.height - taskbarHeightForIme, 0, 0)
+        windowLayoutParams.providedInternalImeInsets[ITYPE_EXTRA_NAVIGATION_BAR] = reducingSize
+        windowLayoutParams.providedInternalImeInsets[ITYPE_BOTTOM_TAPPABLE_ELEMENT] = reducingSize
+    }
+
+    /**
+     * Called to update the touchable insets.
+     * @see InsetsInfo.setTouchableInsets
+     */
+    fun updateInsetsTouchability(insetsInfo: InsetsInfo) {
+        insetsInfo.touchableRegion.setEmpty()
+        // Always have nav buttons be touchable
+        controllers.navbarButtonsViewController.addVisibleButtonsRegion(
+            context.dragLayer, insetsInfo.touchableRegion
+        )
+        var insetsIsTouchableRegion = true
+        if (context.dragLayer.alpha < AlphaUpdateListener.ALPHA_CUTOFF_THRESHOLD) {
+            // Let touches pass through us.
+            insetsInfo.setTouchableInsets(InsetsInfo.TOUCHABLE_INSETS_REGION)
+        } else if (controllers.navbarButtonsViewController.isImeVisible) {
+            insetsInfo.setTouchableInsets(InsetsInfo.TOUCHABLE_INSETS_REGION)
+        } else if (!controllers.uiController.isTaskbarTouchable) {
+            // Let touches pass through us.
+            insetsInfo.setTouchableInsets(InsetsInfo.TOUCHABLE_INSETS_REGION)
+        } else if (controllers.taskbarDragController.isSystemDragInProgress) {
+            // Let touches pass through us.
+            insetsInfo.setTouchableInsets(InsetsInfo.TOUCHABLE_INSETS_REGION)
+        } else if (AbstractFloatingView.getOpenView<AbstractFloatingView?>(
+                context,
+                AbstractFloatingView.TYPE_TASKBAR_ALL_APPS
+            ) != null
+        ) {
+            // Let touches pass through us.
+            insetsInfo.setTouchableInsets(InsetsInfo.TOUCHABLE_INSETS_REGION)
+        } else if (controllers.taskbarViewController.areIconsVisible()
+            || AbstractFloatingView.getOpenView<AbstractFloatingView?>(
+                context,
+                AbstractFloatingView.TYPE_ALL
+            ) != null
+            || context.isNavBarKidsModeActive
+        ) {
+            // Taskbar has some touchable elements, take over the full taskbar area
+            insetsInfo.setTouchableInsets(
+                if (context.isTaskbarWindowFullscreen) {
+                    InsetsInfo.TOUCHABLE_INSETS_FRAME
+                } else {
+                    InsetsInfo.TOUCHABLE_INSETS_CONTENT
+                }
+            )
+            insetsIsTouchableRegion = false
+        } else {
+            insetsInfo.setTouchableInsets(InsetsInfo.TOUCHABLE_INSETS_REGION)
+        }
+        context.excludeFromMagnificationRegion(insetsIsTouchableRegion)
+    }
+
+    override fun dumpLogs(prefix: String, pw: PrintWriter) {
+        pw.println(prefix + "TaskbarInsetsController:")
+        pw.println("$prefix\twindowHeight=${windowLayoutParams.height}")
+        pw.println("$prefix\tprovidedInternalImeInsets[ITYPE_EXTRA_NAVIGATION_BAR]=" +
+                "${windowLayoutParams.providedInternalImeInsets[ITYPE_EXTRA_NAVIGATION_BAR]}")
+        pw.println("$prefix\tprovidedInternalImeInsets[ITYPE_BOTTOM_TAPPABLE_ELEMENT]=" +
+                "${windowLayoutParams.providedInternalImeInsets[ITYPE_BOTTOM_TAPPABLE_ELEMENT]}")
+    }
+}
\ No newline at end of file
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
index e1ce898..6416720 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
@@ -18,6 +18,7 @@
 import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
 import static com.android.launcher3.Utilities.squaredHypot;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASKBAR_ALLAPPS_BUTTON_TAP;
 import static com.android.quickstep.AnimatedFloat.VALUE;
 
 import android.annotation.NonNull;
@@ -341,7 +342,10 @@
         }
 
         public View.OnClickListener getAllAppsButtonClickListener() {
-            return v -> mControllers.taskbarAllAppsController.show();
+            return v -> {
+                mActivity.getStatsLogManager().logger().log(LAUNCHER_TASKBAR_ALLAPPS_BUTTON_TAP);
+                mControllers.taskbarAllAppsController.show();
+            };
         }
 
         public View.OnLongClickListener getIconOnLongClickListener() {
diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index 2ae0646..7ca7639 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -1006,8 +1006,8 @@
         return false;
     }
 
-    private GestureEndTarget calculateEndTarget(PointF velocity, float endVelocity, boolean isFling,
-            boolean isCancel) {
+    private GestureEndTarget calculateEndTarget(PointF velocity, float endVelocity,
+            boolean isFlingY, boolean isCancel) {
         if (mGestureState.isHandlingAtomicEvent()) {
             // Button mode, this is only used to go to recents
             return RECENTS;
@@ -1028,11 +1028,17 @@
             goingToNewTask = false;
         }
         final boolean reachedOverviewThreshold = mCurrentShift.value >= MIN_PROGRESS_FOR_OVERVIEW;
-        if (!isFling) {
+        final boolean isFlingX = Math.abs(velocity.x) > mContext.getResources()
+                .getDimension(R.dimen.quickstep_fling_threshold_speed);
+        if (!isFlingY) {
             if (isCancel) {
                 endTarget = LAST_TASK;
             } else if (mDeviceState.isFullyGesturalNavMode()) {
-                if (mIsMotionPaused) {
+                if (goingToNewTask && isFlingX) {
+                    // Flinging towards new task takes precedence over mIsMotionPaused (which only
+                    // checks y-velocity).
+                    endTarget = NEW_TASK;
+                } else if (mIsMotionPaused) {
                     endTarget = RECENTS;
                 } else if (goingToNewTask) {
                     endTarget = NEW_TASK;
diff --git a/quickstep/src/com/android/quickstep/KtR.java b/quickstep/src/com/android/quickstep/KtR.java
index a768ef5..758c6e0 100644
--- a/quickstep/src/com/android/quickstep/KtR.java
+++ b/quickstep/src/com/android/quickstep/KtR.java
@@ -31,6 +31,7 @@
     public static final class dimen {
         public static int task_menu_spacing = R.dimen.task_menu_spacing;
         public static int task_menu_horizontal_padding = R.dimen.task_menu_horizontal_padding;
+        public static int taskbar_ime_size = R.dimen.taskbar_ime_size;
     }
 
     public static final class layout {
diff --git a/quickstep/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java b/quickstep/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
index dd459f5..11f0ff3 100644
--- a/quickstep/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
+++ b/quickstep/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
@@ -84,6 +84,9 @@
     public static final float QUICKSTEP_TOUCH_SLOP_RATIO_TWO_BUTTON = 9;
     public static final float QUICKSTEP_TOUCH_SLOP_RATIO_GESTURAL = 2;
 
+    // Minimum angle of a gesture's coordinate where a release goes to overview.
+    public static final int OVERVIEW_MIN_DEGREES = 15;
+
     private final RecentsAnimationDeviceState mDeviceState;
     private final NavBarPosition mNavBarPosition;
     private final TaskAnimationManager mTaskAnimationManager;
@@ -291,8 +294,9 @@
                 // the gesture (in which case mPassedPilferInputSlop starts as true).
                 boolean haveNotPassedSlopOnContinuedGesture =
                         !mPassedSlopOnThisGesture && mPassedPilferInputSlop;
+                double degrees = Math.toDegrees(Math.atan(upDist / horizontalDist));
                 boolean isLikelyToStartNewTask = haveNotPassedSlopOnContinuedGesture
-                        || horizontalDist > upDist;
+                        || degrees <= OVERVIEW_MIN_DEGREES;
 
                 if (!mPassedPilferInputSlop) {
                     if (passedSlop) {
diff --git a/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java b/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
index 13007ea..10c56c9 100644
--- a/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
+++ b/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
@@ -20,6 +20,7 @@
 import static androidx.core.util.Preconditions.checkState;
 
 import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_NON_ACTIONABLE;
+import static com.android.launcher3.logger.LauncherAtom.ContainerInfo.ContainerCase.ALL_APPS_CONTAINER;
 import static com.android.launcher3.logger.LauncherAtom.ContainerInfo.ContainerCase.EXTENDED_CONTAINERS;
 import static com.android.launcher3.logger.LauncherAtom.ContainerInfo.ContainerCase.FOLDER;
 import static com.android.launcher3.logger.LauncherAtom.ContainerInfo.ContainerCase.SEARCH_RESULT_CONTAINER;
@@ -92,6 +93,7 @@
     private static final int FOLDER_HIERARCHY_OFFSET = 100;
     private static final int SEARCH_RESULT_HIERARCHY_OFFSET = 200;
     private static final int EXTENDED_CONTAINERS_HIERARCHY_OFFSET = 300;
+    private static final int ALL_APPS_HIERARCHY_OFFSET = 400;
 
     /**
      * Flags for converting SearchAttribute to integer value.
@@ -632,6 +634,9 @@
         } else if (info.getContainerInfo().getContainerCase() == EXTENDED_CONTAINERS) {
             return info.getContainerInfo().getExtendedContainers().getContainerCase().getNumber()
                     + EXTENDED_CONTAINERS_HIERARCHY_OFFSET;
+        } else if (info.getContainerInfo().getContainerCase() == ALL_APPS_CONTAINER) {
+            return info.getContainerInfo().getAllAppsContainer().getParentContainerCase()
+                    .getNumber() + ALL_APPS_HIERARCHY_OFFSET;
         } else {
             return info.getContainerInfo().getContainerCase().getNumber();
         }
diff --git a/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java b/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
index 1631be0..6038a22 100644
--- a/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
+++ b/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
@@ -307,6 +307,7 @@
     private void initMultipleOrientationListeners() {
         mSharedPrefs.registerOnSharedPreferenceChangeListener(this);
         mSettingsCache.register(ROTATION_SETTING_URI, mRotationChangeListener);
+        updateAutoRotateSetting();
     }
 
     private void destroyMultipleOrientationListeners() {
diff --git a/quickstep/tests/src/com/android/quickstep/DigitalWellBeingToastTest.java b/quickstep/tests/src/com/android/quickstep/DigitalWellBeingToastTest.java
index 3bd3722..5c2e14f 100644
--- a/quickstep/tests/src/com/android/quickstep/DigitalWellBeingToastTest.java
+++ b/quickstep/tests/src/com/android/quickstep/DigitalWellBeingToastTest.java
@@ -46,7 +46,8 @@
             runWithShellPermission(() ->
                     usageStatsManager.registerAppUsageLimitObserver(observerId, packages,
                             Duration.ofSeconds(600), Duration.ofSeconds(300),
-                            PendingIntent.getActivity(mTargetContext, -1, new Intent(), 0)));
+                            PendingIntent.getActivity(mTargetContext, -1, new Intent(),
+                                    PendingIntent.FLAG_MUTABLE)));
 
             mLauncher.goHome();
             final DigitalWellBeingToast toast = getToast();
diff --git a/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java b/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java
index ca6712f..f7600ff 100644
--- a/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java
+++ b/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java
@@ -57,6 +57,7 @@
 import com.android.launcher3.testcomponent.TestCommandReceiver;
 import com.android.launcher3.util.Wait;
 import com.android.launcher3.util.rule.FailureWatcher;
+import com.android.launcher3.util.rule.SamplerRule;
 import com.android.launcher3.util.rule.ScreenRecordRule;
 import com.android.quickstep.views.RecentsView;
 
@@ -111,7 +112,8 @@
         }
 
         mOrderSensitiveRules = RuleChain
-                .outerRule(new NavigationModeSwitchRule(mLauncher))
+                .outerRule(new SamplerRule())
+                .around(new NavigationModeSwitchRule(mLauncher))
                 .around(new FailureWatcher(mDevice, mLauncher));
 
         mOtherLauncherActivity = context.getPackageManager().queryIntentActivities(
diff --git a/res/drawable/gm_edit_24.xml b/res/drawable/gm_edit_24.xml
index 59a0dc2..f741333 100644
--- a/res/drawable/gm_edit_24.xml
+++ b/res/drawable/gm_edit_24.xml
@@ -5,6 +5,6 @@
     android:viewportHeight="24"
     android:tint="?attr/colorControlNormal">
   <path
-      android:fillColor="@android:color/white"
+      android:fillColor="?android:attr/textColorPrimaryInverse"
       android:pathData="M20.41,4.94l-1.35,-1.35c-0.78,-0.78 -2.05,-0.78 -2.83,0L3,16.82L3,21h4.18L20.41,7.77c0.79,-0.78 0.79,-2.05 0,-2.83zM6.41,19.06L5,19v-1.36l9.82,-9.82 1.41,1.41 -9.82,9.83z"/>
 </vector>
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index e5e2217..52ff3f0 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -291,15 +291,15 @@
     <!-- popup_padding_start + deep_shortcut_icon_size / 2 -->
     <dimen name="popup_arrow_horizontal_center_offset">26dp</dimen>
     <dimen name="popup_arrow_corner_radius">2dp</dimen>
-    <!-- popup_padding_start + icon_size + 10dp -->
+    <!-- popup_padding_start + deep_shortcut_icon_size + 10dp -->
     <dimen name="deep_shortcuts_text_padding_start">52dp</dimen>
-    <dimen name="system_shortcut_icon_size">24dp</dimen>
+    <dimen name="system_shortcut_icon_size">20dp</dimen>
     <!-- popup_arrow_horizontal_center_offset - system_shortcut_icon_size / 2 -->
     <dimen name="system_shortcut_margin_start">16dp</dimen>
     <dimen name="system_shortcut_header_height">56dp</dimen>
     <dimen name="system_shortcut_header_icon_touch_size">48dp</dimen>
-    <!-- (touch_size - icon_size) / 2 -->
-    <dimen name="system_shortcut_header_icon_padding">12dp</dimen>
+    <!-- (system_shortcut_header_icon_touch_size - system_shortcut_icon_size) / 2 -->
+    <dimen name="system_shortcut_header_icon_padding">14dp</dimen>
 
 <!-- Notifications -->
     <dimen name="bg_round_rect_radius">8dp</dimen>
@@ -377,7 +377,7 @@
     <dimen name="split_placeholder_size">72dp</dimen>
     <dimen name="split_placeholder_inset">16dp</dimen>
     <dimen name="split_placeholder_icon_size">44dp</dimen>
-    <dimen name="task_menu_width_grid">200dp</dimen>
+    <dimen name="task_menu_width_grid">216dp</dimen>
 
 
 <!-- Workspace grid visualization parameters -->
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 72d0f59..33bb0a5 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -928,6 +928,13 @@
         return workspaceSpringLoadShrunkBottom;
     }
 
+    /**
+     * Gets the minimum visible amount of the next workspace page when in the spring-loaded state.
+     */
+    public float getWorkspaceSpringLoadedMinimumNextPageVisible() {
+        return getCellSize().x / 2f;
+    }
+
     public int getWorkspaceWidth() {
         return getWorkspaceWidth(getTotalWorkspacePadding());
     }
@@ -1015,29 +1022,32 @@
                         mInsets.right + hotseatBarSidePaddingStartPx, paddingBottom);
             }
         } else if (isTaskbarPresent) {
+            boolean isRtl = Utilities.isRtl(context.getResources());
             int hotseatHeight = workspacePadding.bottom;
             int taskbarOffset = getTaskbarOffsetY();
-            int additionalLeftSpace = 0;
+            // Push icons to the side
+            int additionalQsbSpace = isQsbInline ? qsbWidth + hotseatBorderSpace : 0;
 
-            // Center the QSB with hotseat and push icons to the right
-            if (isQsbInline) {
-                additionalLeftSpace = qsbWidth + hotseatBorderSpace;
-            }
-
+            // Center the QSB vertically with hotseat
             int hotseatTopPadding = hotseatHeight - taskbarOffset - hotseatCellHeightPx;
 
             int endOffset = ApiWrapper.getHotseatEndOffset(context);
             int requiredWidth = iconSizePx * numShownHotseatIcons
                     + hotseatBorderSpace * (numShownHotseatIcons - 1)
-                    + additionalLeftSpace;
+                    + additionalQsbSpace;
 
-            int hotseatSize = Math.min(requiredWidth, availableWidthPx - endOffset);
-            int sideSpacing = (availableWidthPx - hotseatSize) / 2;
-            mHotseatPadding.set(sideSpacing + additionalLeftSpace, hotseatTopPadding, sideSpacing,
-                    taskbarOffset);
+            int hotseatWidth = Math.min(requiredWidth, availableWidthPx - endOffset);
+            int sideSpacing = (availableWidthPx - hotseatWidth) / 2;
+            mHotseatPadding.set(sideSpacing, hotseatTopPadding, sideSpacing, taskbarOffset);
+
+            if (isRtl) {
+                mHotseatPadding.right += additionalQsbSpace;
+            } else {
+                mHotseatPadding.left += additionalQsbSpace;
+            }
 
             if (endOffset > sideSpacing) {
-                int diff = Utilities.isRtl(context.getResources())
+                int diff = isRtl
                         ? sideSpacing - endOffset
                         : endOffset - sideSpacing;
                 mHotseatPadding.left -= diff;
@@ -1087,7 +1097,7 @@
      */
     public int getTaskbarOffsetY() {
         if (isQsbInline) {
-            return getQsbOffsetY() + (Math.abs(hotseatQsbHeight - iconSizePx) / 2);
+            return getQsbOffsetY() - (Math.abs(hotseatQsbHeight - hotseatCellHeightPx) / 2);
         } else {
             return (getQsbOffsetY() - taskbarSize) / 2;
         }
diff --git a/src/com/android/launcher3/Hotseat.java b/src/com/android/launcher3/Hotseat.java
index d1d6c18..a9db5ce 100644
--- a/src/com/android/launcher3/Hotseat.java
+++ b/src/com/android/launcher3/Hotseat.java
@@ -195,7 +195,8 @@
         int left;
         if (mActivity.getDeviceProfile().isQsbInline) {
             int qsbSpace = mActivity.getDeviceProfile().hotseatBorderSpace;
-            left = l + getPaddingLeft() - qsbWidth - qsbSpace;
+            left = Utilities.isRtl(getResources()) ? r - getPaddingRight() + qsbSpace
+                    : l + getPaddingLeft() - qsbWidth - qsbSpace;
         } else {
             left = (r - l - qsbWidth) / 2;
         }
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 923e614..b6a05b0 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3;
 
+import static android.app.PendingIntent.FLAG_IMMUTABLE;
+import static android.app.PendingIntent.FLAG_UPDATE_CURRENT;
 import static android.content.pm.ActivityInfo.CONFIG_ORIENTATION;
 import static android.content.pm.ActivityInfo.CONFIG_SCREEN_SIZE;
 import static android.content.pm.ActivityInfo.CONFIG_UI_MODE;
@@ -434,8 +436,7 @@
                 shareIntent.putExtra(Intent.EXTRA_TEXT, stackTrace);
                 shareIntent = Intent.createChooser(shareIntent, null);
                 PendingIntent sharePendingIntent = PendingIntent.getActivity(
-                        this, 0, shareIntent, PendingIntent.FLAG_UPDATE_CURRENT
-                );
+                        this, 0, shareIntent, FLAG_UPDATE_CURRENT | FLAG_IMMUTABLE);
 
                 Notification notification = new Notification.Builder(this, notificationChannelId)
                         .setSmallIcon(android.R.drawable.ic_menu_close_clear_cancel)
@@ -3234,12 +3235,12 @@
     /** Pauses view updates that should not be run during the app launch animation. */
     public void pauseExpensiveViewUpdates() {
         // Pause page indicator animations as they lead to layer trashing.
-        mWorkspace.getPageIndicator().pauseAnimations();
+        getWorkspace().getPageIndicator().pauseAnimations();
     }
 
     /** Resumes view updates at the end of the app launch animation. */
     public void resumeExpensiveViewUpdates() {
-        mWorkspace.getPageIndicator().skipAnimationsToEnd();
+        getWorkspace().getPageIndicator().skipAnimationsToEnd();
     }
 
 }
diff --git a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
index 462daf5..12eb837 100644
--- a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
+++ b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
@@ -313,7 +313,7 @@
      * Find empty space on the workspace and returns the screenId.
      */
     protected int findSpaceOnWorkspace(ItemInfo info, int[] outCoordinates) {
-        Workspace workspace = mContext.getWorkspace();
+        Workspace<?> workspace = mContext.getWorkspace();
         IntArray workspaceScreens = workspace.getScreenOrder();
         int screenId;
 
diff --git a/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java b/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
index 3dfece7..a11bd4f 100644
--- a/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
+++ b/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
@@ -23,7 +23,6 @@
 import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION;
 import static com.android.launcher3.model.ModelUtils.filterCurrentWorkspaceItems;
 import static com.android.launcher3.model.ModelUtils.getMissingHotseatRanks;
-import static com.android.launcher3.model.ModelUtils.sortWorkspaceItemsSpatially;
 
 import android.annotation.TargetApi;
 import android.app.Fragment;
@@ -420,8 +419,6 @@
                 currentWorkspaceItems, otherWorkspaceItems);
         filterCurrentWorkspaceItems(currentScreenIds, dataModel.appWidgets, currentAppWidgets,
                 otherAppWidgets);
-
-        sortWorkspaceItemsSpatially(mIdp, currentWorkspaceItems);
         for (ItemInfo itemInfo : currentWorkspaceItems) {
             switch (itemInfo.itemType) {
                 case Favorites.ITEM_TYPE_APPLICATION:
diff --git a/src/com/android/launcher3/icons/IconCache.java b/src/com/android/launcher3/icons/IconCache.java
index 7ba2317..fe9b633 100644
--- a/src/com/android/launcher3/icons/IconCache.java
+++ b/src/com/android/launcher3/icons/IconCache.java
@@ -42,8 +42,10 @@
 import android.os.UserHandle;
 import android.text.TextUtils;
 import android.util.Log;
+import android.util.SparseArray;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.core.util.Pair;
 
 import com.android.launcher3.InvariantDeviceProfile;
@@ -94,6 +96,8 @@
     private final InstantAppResolver mInstantAppResolver;
     private final IconProvider mIconProvider;
 
+    private final SparseArray<BitmapInfo> mWidgetCategoryBitmapInfos;
+
     private int mPendingIconRequestCount = 0;
 
     public IconCache(Context context, InvariantDeviceProfile idp) {
@@ -111,6 +115,7 @@
         mUserManager = UserCache.INSTANCE.get(mContext);
         mInstantAppResolver = InstantAppResolver.newInstance(mContext);
         mIconProvider = iconProvider;
+        mWidgetCategoryBitmapInfos = new SparseArray<>();
     }
 
     @Override
@@ -477,13 +482,39 @@
         CacheEntry entry = getEntryForPackageLocked(
                 infoInOut.packageName, infoInOut.user, useLowResIcon);
         applyCacheEntry(entry, infoInOut);
-        if (infoInOut.widgetCategory != NO_CATEGORY) {
-            WidgetSection widgetSection = WidgetSections.getWidgetSections(mContext)
-                    .get(infoInOut.widgetCategory);
-            infoInOut.title = mContext.getString(widgetSection.mSectionTitle);
-            infoInOut.contentDescription = mPackageManager.getUserBadgedLabel(
-                    infoInOut.title, infoInOut.user);
+        if (infoInOut.widgetCategory == NO_CATEGORY) {
+            return;
         }
+
+        WidgetSection widgetSection = WidgetSections.getWidgetSections(mContext)
+                .get(infoInOut.widgetCategory);
+        infoInOut.title = mContext.getString(widgetSection.mSectionTitle);
+        infoInOut.contentDescription = mPackageManager.getUserBadgedLabel(
+                infoInOut.title, infoInOut.user);
+        final BitmapInfo cachedBitmap = mWidgetCategoryBitmapInfos.get(infoInOut.widgetCategory);
+        if (cachedBitmap != null) {
+            infoInOut.bitmap = getBadgedIcon(cachedBitmap, infoInOut.user);
+            return;
+        }
+
+        try (LauncherIcons li = LauncherIcons.obtain(mContext)) {
+            final BitmapInfo tempBitmap = li.createBadgedIconBitmap(
+                    mContext.getDrawable(widgetSection.mSectionDrawable),
+                    new BaseIconFactory.IconOptions().setShrinkNonAdaptiveIcons(false));
+            mWidgetCategoryBitmapInfos.put(infoInOut.widgetCategory, tempBitmap);
+            infoInOut.bitmap = getBadgedIcon(tempBitmap, infoInOut.user);
+        } catch (Exception e) {
+            Log.e(TAG, "Error initializing bitmap for icons with widget category", e);
+        }
+
+    }
+
+    private synchronized BitmapInfo getBadgedIcon(@Nullable final BitmapInfo bitmap,
+            @NonNull final UserHandle user) {
+        if (bitmap == null) {
+            return getDefaultIcon(user);
+        }
+        return bitmap.withFlags(getUserFlagOpLocked(user));
     }
 
     protected void applyCacheEntry(CacheEntry entry, ItemInfoWithIcon info) {
diff --git a/src/com/android/launcher3/logging/StatsLogManager.java b/src/com/android/launcher3/logging/StatsLogManager.java
index 9af72c3..2b6e426 100644
--- a/src/com/android/launcher3/logging/StatsLogManager.java
+++ b/src/com/android/launcher3/logging/StatsLogManager.java
@@ -586,6 +586,9 @@
 
         @UiEvent(doc = "User clicked on IME quicksearch button.")
         LAUNCHER_ALLAPPS_QUICK_SEARCH_WITH_IME(1047),
+
+        @UiEvent(doc = "User tapped taskbar All Apps button.")
+        LAUNCHER_TASKBAR_ALLAPPS_BUTTON_TAP(1057),
         ;
 
         // ADD MORE
diff --git a/src/com/android/launcher3/model/BaseLoaderResults.java b/src/com/android/launcher3/model/BaseLoaderResults.java
index 5b278ab..6c4cfb9 100644
--- a/src/com/android/launcher3/model/BaseLoaderResults.java
+++ b/src/com/android/launcher3/model/BaseLoaderResults.java
@@ -18,7 +18,6 @@
 
 import static com.android.launcher3.model.ItemInstallQueue.FLAG_LOADER_RUNNING;
 import static com.android.launcher3.model.ModelUtils.filterCurrentWorkspaceItems;
-import static com.android.launcher3.model.ModelUtils.sortWorkspaceItemsSpatially;
 import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
 import android.os.Process;
@@ -27,6 +26,8 @@
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherModel.CallbackTask;
+import com.android.launcher3.LauncherSettings;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.model.BgDataModel.Callbacks;
 import com.android.launcher3.model.BgDataModel.FixedContainerItems;
 import com.android.launcher3.model.data.AppInfo;
@@ -110,6 +111,42 @@
 
     public abstract void bindWidgets();
 
+    /**
+     * Sorts the set of items by hotseat, workspace (spatially from top to bottom, left to right)
+     */
+    protected void sortWorkspaceItemsSpatially(InvariantDeviceProfile profile,
+            ArrayList<ItemInfo> workspaceItems) {
+        final int screenCols = profile.numColumns;
+        final int screenCellCount = profile.numColumns * profile.numRows;
+        Collections.sort(workspaceItems, (lhs, rhs) -> {
+            if (lhs.container == rhs.container) {
+                // Within containers, order by their spatial position in that container
+                switch (lhs.container) {
+                    case LauncherSettings.Favorites.CONTAINER_DESKTOP: {
+                        int lr = (lhs.screenId * screenCellCount + lhs.cellY * screenCols
+                                + lhs.cellX);
+                        int rr = (rhs.screenId * screenCellCount + +rhs.cellY * screenCols
+                                + rhs.cellX);
+                        return Integer.compare(lr, rr);
+                    }
+                    case LauncherSettings.Favorites.CONTAINER_HOTSEAT: {
+                        // We currently use the screen id as the rank
+                        return Integer.compare(lhs.screenId, rhs.screenId);
+                    }
+                    default:
+                        if (FeatureFlags.IS_STUDIO_BUILD) {
+                            throw new RuntimeException(
+                                    "Unexpected container type when sorting workspace items.");
+                        }
+                        return 0;
+                }
+            } else {
+                // Between containers, order by hotseat, desktop
+                return Integer.compare(lhs.container, rhs.container);
+            }
+        });
+    }
+
     protected void executeCallbacksTask(CallbackTask task, Executor executor) {
         executor.execute(() -> {
             if (mMyBindingId != mBgDataModel.lastBindId) {
@@ -131,7 +168,7 @@
         return idleLock;
     }
 
-    private static class WorkspaceBinder {
+    private class WorkspaceBinder {
 
         private final Executor mUiExecutor;
         private final Callbacks mCallbacks;
diff --git a/src/com/android/launcher3/model/ModelUtils.java b/src/com/android/launcher3/model/ModelUtils.java
index ef5eef1..df6768d 100644
--- a/src/com/android/launcher3/model/ModelUtils.java
+++ b/src/com/android/launcher3/model/ModelUtils.java
@@ -23,10 +23,8 @@
 import android.os.Process;
 import android.util.Log;
 
-import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.icons.BitmapInfo;
 import com.android.launcher3.icons.LauncherIcons;
 import com.android.launcher3.model.data.ItemInfo;
@@ -92,42 +90,6 @@
     }
 
     /**
-     * Sorts the set of items by hotseat, workspace (spatially from top to bottom, left to right)
-     */
-    public static void sortWorkspaceItemsSpatially(InvariantDeviceProfile profile,
-            ArrayList<ItemInfo> workspaceItems) {
-        final int screenCols = profile.numColumns;
-        final int screenCellCount = profile.numColumns * profile.numRows;
-        Collections.sort(workspaceItems, (lhs, rhs) -> {
-            if (lhs.container == rhs.container) {
-                // Within containers, order by their spatial position in that container
-                switch (lhs.container) {
-                    case LauncherSettings.Favorites.CONTAINER_DESKTOP: {
-                        int lr = (lhs.screenId * screenCellCount + lhs.cellY * screenCols
-                                + lhs.cellX);
-                        int rr = (rhs.screenId * screenCellCount + +rhs.cellY * screenCols
-                                + rhs.cellX);
-                        return Integer.compare(lr, rr);
-                    }
-                    case LauncherSettings.Favorites.CONTAINER_HOTSEAT: {
-                        // We currently use the screen id as the rank
-                        return Integer.compare(lhs.screenId, rhs.screenId);
-                    }
-                    default:
-                        if (FeatureFlags.IS_STUDIO_BUILD) {
-                            throw new RuntimeException(
-                                    "Unexpected container type when sorting workspace items.");
-                        }
-                        return 0;
-                }
-            } else {
-                // Between containers, order by hotseat, desktop
-                return Integer.compare(lhs.container, rhs.container);
-            }
-        });
-    }
-
-    /**
      * Iterates though current workspace items and returns available hotseat ranks for prediction.
      */
     public static IntArray getMissingHotseatRanks(List<ItemInfo> items, int len) {
diff --git a/src/com/android/launcher3/popup/ArrowPopup.java b/src/com/android/launcher3/popup/ArrowPopup.java
index df8a3e2..196cc56 100644
--- a/src/com/android/launcher3/popup/ArrowPopup.java
+++ b/src/com/android/launcher3/popup/ArrowPopup.java
@@ -602,6 +602,7 @@
         mIsAboveIcon = y > dragLayer.getTop() + insets.top;
         if (!mIsAboveIcon) {
             y = mTempRect.top + iconHeight + extraVerticalSpace;
+            height -= extraVerticalSpace;
         }
 
         // Insets are added later, so subtract them now.
@@ -609,7 +610,7 @@
         y -= insets.top;
 
         mGravity = 0;
-        if (y + height > dragLayer.getBottom() - insets.bottom) {
+        if ((insets.top + y + height) > (dragLayer.getBottom() - insets.bottom)) {
             // The container is opening off the screen, so just center it in the drag layer instead.
             mGravity = Gravity.CENTER_VERTICAL;
             // Put the container next to the icon, preferring the right side in ltr (left in rtl).
diff --git a/src/com/android/launcher3/states/SpringLoadedState.java b/src/com/android/launcher3/states/SpringLoadedState.java
index 52356ce..7e9d56d 100644
--- a/src/com/android/launcher3/states/SpringLoadedState.java
+++ b/src/com/android/launcher3/states/SpringLoadedState.java
@@ -53,7 +53,15 @@
 
         float shrunkTop = grid.getWorkspaceSpringLoadShrunkTop();
         float shrunkBottom = grid.getWorkspaceSpringLoadShrunkBottom();
-        float scale = (shrunkBottom - shrunkTop) / ws.getNormalChildHeight();
+        float scale = Math.min((shrunkBottom - shrunkTop) / ws.getNormalChildHeight(), 1f);
+
+        // Reduce scale if next pages would not be visible after scaling the workspace
+        float scaledWorkspaceWidth = ws.getWidth() * scale;
+        float maxAvailableWidth =
+                ws.getWidth() - (2 * grid.getWorkspaceSpringLoadedMinimumNextPageVisible());
+        if (scaledWorkspaceWidth > maxAvailableWidth) {
+            scale *= maxAvailableWidth / scaledWorkspaceWidth;
+        }
 
         float halfHeight = ws.getHeight() / 2;
         float myCenter = ws.getTop() + halfHeight;
diff --git a/src/com/android/launcher3/util/GridOccupancy.java b/src/com/android/launcher3/util/GridOccupancy.java
index 9c752a7..1301460 100644
--- a/src/com/android/launcher3/util/GridOccupancy.java
+++ b/src/com/android/launcher3/util/GridOccupancy.java
@@ -7,7 +7,7 @@
 /**
  * Utility object to manage the occupancy in a grid.
  */
-public class GridOccupancy {
+public class GridOccupancy extends AbsGridOccupancy {
 
     private final int mCountX;
     private final int mCountY;
@@ -30,24 +30,7 @@
      * @return true if a vacant cell was found
      */
     public boolean findVacantCell(int[] vacantOut, int spanX, int spanY) {
-        for (int y = 0; (y + spanY) <= mCountY; y++) {
-            for (int x = 0; (x + spanX) <= mCountX; x++) {
-                boolean available = !cells[x][y];
-                out:
-                for (int i = x; i < x + spanX; i++) {
-                    for (int j = y; j < y + spanY; j++) {
-                        available = available && !cells[i][j];
-                        if (!available) break out;
-                    }
-                }
-                if (available) {
-                    vacantOut[0] = x;
-                    vacantOut[1] = y;
-                    return true;
-                }
-            }
-        }
-        return false;
+        return super.findVacantCell(vacantOut, cells, mCountX, mCountY, spanX, spanY);
     }
 
     public void copyTo(GridOccupancy dest) {
diff --git a/src/com/android/launcher3/widget/PendingAppWidgetHostView.java b/src/com/android/launcher3/widget/PendingAppWidgetHostView.java
index 1f6551e..130ee3a 100644
--- a/src/com/android/launcher3/widget/PendingAppWidgetHostView.java
+++ b/src/com/android/launcher3/widget/PendingAppWidgetHostView.java
@@ -18,7 +18,6 @@
 
 import static com.android.launcher3.graphics.PreloadIconDrawable.newPendingIcon;
 import static com.android.launcher3.icons.FastBitmapDrawable.getDisabledColorFilter;
-import static com.android.launcher3.widget.WidgetSections.getWidgetSections;
 
 import android.content.Context;
 import android.graphics.Canvas;
@@ -341,8 +340,6 @@
         if (mInfo.pendingItemInfo.widgetCategory == WidgetSections.NO_CATEGORY) {
             return null;
         }
-        Context context = getContext();
-        return context.getDrawable(getWidgetSections(context).get(
-                mInfo.pendingItemInfo.widgetCategory).mSectionDrawable);
+        return mInfo.pendingItemInfo.newIcon(getContext());
     }
 }
diff --git a/src/com/android/launcher3/widget/picker/WidgetsListHeader.java b/src/com/android/launcher3/widget/picker/WidgetsListHeader.java
index 932e06d..b0e2ec1 100644
--- a/src/com/android/launcher3/widget/picker/WidgetsListHeader.java
+++ b/src/com/android/launcher3/widget/picker/WidgetsListHeader.java
@@ -15,7 +15,6 @@
  */
 package com.android.launcher3.widget.picker;
 
-import static com.android.launcher3.widget.WidgetSections.NO_CATEGORY;
 
 import android.content.Context;
 import android.content.res.Resources;
@@ -43,8 +42,6 @@
 import com.android.launcher3.model.data.PackageItemInfo;
 import com.android.launcher3.util.PluralMessageFormat;
 import com.android.launcher3.views.ActivityContext;
-import com.android.launcher3.widget.WidgetSections;
-import com.android.launcher3.widget.WidgetSections.WidgetSection;
 import com.android.launcher3.widget.model.WidgetsListHeaderEntry;
 import com.android.launcher3.widget.model.WidgetsListSearchHeaderEntry;
 
@@ -177,13 +174,7 @@
 
     private void setIcon(PackageItemInfo info) {
         Drawable icon;
-        if (info.widgetCategory == NO_CATEGORY) {
-            icon = info.newIcon(getContext());
-        } else {
-            WidgetSection widgetSection = WidgetSections.getWidgetSections(getContext())
-                    .get(info.widgetCategory);
-            icon = getContext().getDrawable(widgetSection.mSectionDrawable);
-        }
+        icon = info.newIcon(getContext());
         applyDrawables(icon);
         mIconDrawable = icon;
         if (mIconDrawable != null) {
diff --git a/src_shortcuts_overrides/com/android/launcher3/util/AbsGridOccupancy.java b/src_shortcuts_overrides/com/android/launcher3/util/AbsGridOccupancy.java
new file mode 100644
index 0000000..968b281
--- /dev/null
+++ b/src_shortcuts_overrides/com/android/launcher3/util/AbsGridOccupancy.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3.util;
+
+/**
+ * Defines method to find the next vacant cell on a grid.
+ * This uses the default top-down, left-right approach and can be over-written through
+ * code swaps in different launchers.
+ */
+public abstract class AbsGridOccupancy {
+    /**
+     * Find the first vacant cell, if there is one.
+     *
+     * @param vacantOut Holds the x and y coordinate of the vacant cell
+     * @param spanX Horizontal cell span.
+     * @param spanY Vertical cell span.
+     *
+     * @return true if a vacant cell was found
+     */
+    protected boolean findVacantCell(int[] vacantOut, boolean[][] cells, int countX, int countY,
+            int spanX, int spanY) {
+        for (int y = 0; (y + spanY) <= countY; y++) {
+            for (int x = 0; (x + spanX) <= countX; x++) {
+                boolean available = !cells[x][y];
+                out:
+                for (int i = x; i < x + spanX; i++) {
+                    for (int j = y; j < y + spanY; j++) {
+                        available = available && !cells[i][j];
+                        if (!available) break out;
+                    }
+                }
+                if (available) {
+                    vacantOut[0] = x;
+                    vacantOut[1] = y;
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+}
diff --git a/tests/Android.bp b/tests/Android.bp
index 7542d04..54cded0 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -37,6 +37,7 @@
       "src/com/android/launcher3/util/WidgetUtils.java",
       "src/com/android/launcher3/util/rule/FailureWatcher.java",
       "src/com/android/launcher3/util/rule/LauncherActivityRule.java",
+      "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/SimpleActivityRule.java",
diff --git a/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java b/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
index 136f115..7080c85 100644
--- a/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
+++ b/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
@@ -68,6 +68,7 @@
 import com.android.launcher3.util.WidgetUtils;
 import com.android.launcher3.util.rule.FailureWatcher;
 import com.android.launcher3.util.rule.LauncherActivityRule;
+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.TestStabilityRule;
@@ -227,7 +228,8 @@
 
     @Rule
     public TestRule mOrderSensitiveRules = RuleChain
-            .outerRule(new TestStabilityRule())
+            .outerRule(new SamplerRule())
+            .around(new TestStabilityRule())
             .around(mActivityMonitor)
             .around(getRulesInsideActivityMonitor());
 
diff --git a/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java b/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java
index 9fb52fc..0db719e 100644
--- a/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java
+++ b/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java
@@ -15,6 +15,9 @@
  */
 package com.android.launcher3.ui.widget;
 
+import static android.app.PendingIntent.FLAG_MUTABLE;
+import static android.app.PendingIntent.FLAG_ONE_SHOT;
+
 import static com.android.launcher3.ui.TaplTestsLauncher3.getAppPackageName;
 
 import static org.junit.Assert.assertNotNull;
@@ -144,7 +147,7 @@
 
         // Set callback
         PendingIntent callback = PendingIntent.getBroadcast(mTargetContext, 0,
-                new Intent(mCallbackAction), PendingIntent.FLAG_ONE_SHOT);
+                new Intent(mCallbackAction), FLAG_ONE_SHOT | FLAG_MUTABLE);
         mTargetContext.sendBroadcast(RequestPinItemActivity.getCommandIntent(
                 RequestPinItemActivity.class, "setCallback").putExtra(
                 RequestPinItemActivity.EXTRA_PARAM + "0", callback));
diff --git a/tests/src/com/android/launcher3/util/rule/SamplerRule.java b/tests/src/com/android/launcher3/util/rule/SamplerRule.java
new file mode 100644
index 0000000..6125f2a
--- /dev/null
+++ b/tests/src/com/android/launcher3/util/rule/SamplerRule.java
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.util.rule;
+
+import android.os.SystemClock;
+
+import androidx.test.InstrumentationRegistry;
+
+import org.junit.rules.TestRule;
+import org.junit.runner.Description;
+import org.junit.runners.model.Statement;
+
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/**
+ * A rule that generates a file that helps diagnosing cases when the test process was terminated
+ * because the test execution took too long, and tests that ran for too long even without being
+ * terminated. If the process was terminated or the test was long, the test leaves an artifact with
+ * stack traces of all threads, every SAMPLE_INTERVAL_MS. This will help understanding where we
+ * stuck.
+ */
+public class SamplerRule implements TestRule {
+    private static final int TOO_LONG_TEST_MS = 180000;
+    private static final int SAMPLE_INTERVAL_MS = 3000;
+
+    public static Thread startThread(Description description) {
+        Thread thread =
+                new Thread() {
+                    @Override
+                    public void run() {
+                        // Write all-threads stack stace every SAMPLE_INTERVAL_MS while the test
+                        // is running.
+                        // After the test finishes, delete that file. If the test process is
+                        // terminated due to timeout, the trace file won't be deleted.
+                        final File file = getFile();
+
+                        final long startTime = SystemClock.elapsedRealtime();
+                        try (OutputStreamWriter outputStreamWriter =
+                                     new OutputStreamWriter(
+                                             new BufferedOutputStream(
+                                                     new FileOutputStream(file)))) {
+                            writeSamples(outputStreamWriter);
+                        } catch (IOException | InterruptedException e) {
+                            // Simply suppressing the exceptions, nothing to do here.
+                        } finally {
+                            // If the process is not killed, then there was no test timeout, and
+                            // we are not interested in the trace file, unless the test ran too
+                            // long.
+                            if (SystemClock.elapsedRealtime() - startTime < TOO_LONG_TEST_MS) {
+                                file.delete();
+                            }
+                        }
+                    }
+
+                    private File getFile() {
+                        final String strDate = new SimpleDateFormat("HH:mm:ss").format(new Date());
+
+                        final String descStr = description.getTestClass().getSimpleName() + "."
+                                + description.getMethodName();
+                        return artifactFile(
+                                "ThreadStackSamples-" + strDate + "-" + descStr + ".txt");
+                    }
+
+                    private void writeSamples(OutputStreamWriter writer)
+                            throws IOException, InterruptedException {
+                        int count = 0;
+                        while (true) {
+                            writer.write(
+                                    "#"
+                                            + (count++)
+                                            + " =============================================\r\n");
+                            for (StackTraceElement[] stack : getAllStackTraces().values()) {
+                                writer.write("---------------------\r\n");
+                                for (StackTraceElement frame : stack) {
+                                    writer.write(frame.toString() + "\r\n");
+                                }
+                            }
+                            writer.flush();
+
+                            sleep(SAMPLE_INTERVAL_MS);
+                        }
+                    }
+                };
+
+        thread.start();
+        return thread;
+    }
+
+    @Override
+    public Statement apply(Statement base, Description description) {
+        return new Statement() {
+            @Override
+            public void evaluate() throws Throwable {
+                final Thread traceThread = startThread(description);
+                try {
+                    base.evaluate();
+                } finally {
+                    traceThread.interrupt();
+                    traceThread.join();
+                }
+            }
+        };
+    }
+
+    private static File artifactFile(String fileName) {
+        return new File(
+                InstrumentationRegistry.getInstrumentation().getTargetContext().getFilesDir(),
+                fileName);
+    }
+}