Merge "Prepare for wiring bubble bar flyout" into main
diff --git a/aconfig/launcher.aconfig b/aconfig/launcher.aconfig
index c3c42fa..457fdd8 100644
--- a/aconfig/launcher.aconfig
+++ b/aconfig/launcher.aconfig
@@ -65,6 +65,13 @@
 }
 
 flag {
+    name: "enable_taskbar_connected_displays"
+    namespace: "launcher"
+    description: "Enables connected displays in taskbar."
+    bug: "362720616"
+}
+
+flag {
     name: "enable_taskbar_customization"
     namespace: "launcher"
     description: "Enables taskbar customization framework."
diff --git a/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java b/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
index 6af5a30..4014f06 100644
--- a/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
+++ b/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
@@ -237,7 +237,7 @@
             InstanceId instanceId = new InstanceIdSequence().newInstanceId();
             for (ItemInfo info : itemsIdMap) {
                 CollectionInfo parent = getContainer(info, itemsIdMap);
-                StatsLogCompatManager.writeSnapshot(info.buildProto(parent), instanceId);
+                StatsLogCompatManager.writeSnapshot(info.buildProto(parent, mContext), instanceId);
             }
             additionalSnapshotEvents(instanceId);
             prefs.put(LAST_SNAPSHOT_TIME_MILLIS, now);
@@ -274,7 +274,7 @@
 
                         for (ItemInfo info : itemsIdMap) {
                             CollectionInfo parent = getContainer(info, itemsIdMap);
-                            LauncherAtom.ItemInfo itemInfo = info.buildProto(parent);
+                            LauncherAtom.ItemInfo itemInfo = info.buildProto(parent, mContext);
                             Log.d(TAG, itemInfo.toString());
                             StatsEvent statsEvent = StatsLogCompatManager.buildStatsEvent(itemInfo,
                                     instanceId);
diff --git a/quickstep/src/com/android/launcher3/statehandlers/DesktopVisibilityController.java b/quickstep/src/com/android/launcher3/statehandlers/DesktopVisibilityController.java
index 3dcb2ac..2ac87ff 100644
--- a/quickstep/src/com/android/launcher3/statehandlers/DesktopVisibilityController.java
+++ b/quickstep/src/com/android/launcher3/statehandlers/DesktopVisibilityController.java
@@ -16,7 +16,7 @@
 package com.android.launcher3.statehandlers;
 
 import static android.view.View.VISIBLE;
-import static android.window.flags.DesktopModeFlags.ENABLE_DESKTOP_WINDOWING_WALLPAPER_ACTIVITY;
+import static android.window.DesktopModeFlags.ENABLE_DESKTOP_WINDOWING_WALLPAPER_ACTIVITY;
 
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
index 10ff9ac..09dbeb6 100644
--- a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
@@ -15,8 +15,10 @@
  */
 package com.android.launcher3.taskbar;
 
-import static android.window.flags.DesktopModeFlags.ENABLE_DESKTOP_WINDOWING_WALLPAPER_ACTIVITY;
+import static android.window.DesktopModeFlags.ENABLE_DESKTOP_WINDOWING_WALLPAPER_ACTIVITY;
 
+import static com.android.launcher3.QuickstepTransitionManager.TASKBAR_TO_APP_DURATION;
+import static com.android.launcher3.QuickstepTransitionManager.getTaskbarToHomeDuration;
 import static com.android.launcher3.QuickstepTransitionManager.TRANSIENT_TASKBAR_TRANSITION_DURATION;
 import static com.android.launcher3.statemanager.BaseState.FLAG_NON_INTERACTIVE;
 import static com.android.launcher3.taskbar.TaskbarEduTooltipControllerKt.TOOLTIP_STEP_FEATURES;
@@ -32,7 +34,6 @@
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Flags;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.QuickstepTransitionManager;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatedFloat;
 import com.android.launcher3.logging.InstanceId;
@@ -205,11 +206,17 @@
                 isVisible,
                 fromInitOrDestroy,
                 /* startAnimation= */ true,
-                DisplayController.isTransientTaskbar(mLauncher)
-                        ? TRANSIENT_TASKBAR_TRANSITION_DURATION
-                        : (!isVisible
-                                ? QuickstepTransitionManager.TASKBAR_TO_APP_DURATION
-                                : QuickstepTransitionManager.getTaskbarToHomeDuration()));
+                getTaskbarAnimationDuration(isVisible));
+    }
+
+    private int getTaskbarAnimationDuration(boolean isVisible) {
+        if (isVisible && !mLauncher.getPredictiveBackToHomeInProgress()) {
+            return getTaskbarToHomeDuration();
+        } else {
+            return DisplayController.isTransientTaskbar(mLauncher)
+                    ? TRANSIENT_TASKBAR_TRANSITION_DURATION
+                    : TASKBAR_TO_APP_DURATION;
+        }
     }
 
     @Nullable
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
index a4fbb25..707d4b3 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
@@ -16,6 +16,7 @@
 package com.android.launcher3.taskbar;
 
 import static com.android.app.animation.Interpolators.EMPHASIZED;
+import static com.android.launcher3.Flags.enableScalingRevealHomeAnimation;
 import static com.android.launcher3.Hotseat.ALPHA_CHANNEL_TASKBAR_ALIGNMENT;
 import static com.android.launcher3.Hotseat.ALPHA_CHANNEL_TASKBAR_STASH;
 import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
@@ -42,6 +43,7 @@
 import android.animation.ObjectAnimator;
 import android.os.SystemClock;
 import android.util.Log;
+import android.view.animation.Interpolator;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -64,6 +66,7 @@
 import com.android.launcher3.util.MultiPropertyFactory.MultiProperty;
 import com.android.quickstep.RecentsAnimationCallbacks;
 import com.android.quickstep.RecentsAnimationController;
+import com.android.quickstep.util.ScalingWorkspaceRevealAnim;
 import com.android.quickstep.util.SystemUiFlagUtils;
 import com.android.quickstep.views.RecentsView;
 import com.android.systemui.animation.ViewRootSync;
@@ -682,7 +685,9 @@
             animatorSet.play(iconAlignAnim);
         }
 
-        animatorSet.setInterpolator(EMPHASIZED);
+        Interpolator interpolator = enableScalingRevealHomeAnimation()
+                ? ScalingWorkspaceRevealAnim.SCALE_INTERPOLATOR : EMPHASIZED;
+        animatorSet.setInterpolator(interpolator);
 
         if (start) {
             animatorSet.start();
@@ -781,6 +786,9 @@
     }
 
     protected void stashHotseat(boolean stash) {
+        // align taskbar with the hotseat icons before performing any animation
+        mControllers.taskbarViewController.setLauncherIconAlignment(/* alignmentRatio = */ 1,
+                mLauncher.getDeviceProfile());
         TaskbarStashController stashController = mControllers.taskbarStashController;
         stashController.updateStateForFlag(FLAG_STASHED_FOR_BUBBLES, stash);
         Runnable swapHotseatWithTaskbar = new Runnable() {
@@ -893,19 +901,6 @@
             mHotseatTranslationXAnimation.cancel();
             mHotseatTranslationXAnimation = null;
         }
-        Runnable postAnimationAction = new Runnable() {
-            @Override
-            public void run() {
-                mHotseatTranslationXAnimation = null;
-                // We only need to align the task bar when on launcher home screen
-                if (mControllers.taskbarStashController.isOnHome()) {
-                    mControllers.taskbarViewController.setLauncherIconAlignment(
-                            /* alignmentRatio = */ 1,
-                            mLauncher.getDeviceProfile()
-                    );
-                }
-            }
-        };
         Hotseat hotseat = mLauncher.getHotseat();
         AnimatorSet translationXAnimation = new AnimatorSet();
         MultiProperty iconsTranslationX = mLauncher.getHotseat()
@@ -928,14 +923,12 @@
             }
         }
         if (!animate) {
-            postAnimationAction.run();
             return;
         }
         mHotseatTranslationXAnimation = translationXAnimation;
         translationXAnimation.setStartDelay(FADE_OUT_ANIM_POSITION_DURATION_MS);
         translationXAnimation.setDuration(FADE_IN_ANIM_ALPHA_DURATION_MS);
         translationXAnimation.setInterpolator(Interpolators.EMPHASIZED);
-        translationXAnimation.addListener(AnimatorListeners.forEndCallback(postAnimationAction));
         translationXAnimation.start();
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarRecentAppsController.kt b/quickstep/src/com/android/launcher3/taskbar/TaskbarRecentAppsController.kt
index 57d4dbb..9c34ff0 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarRecentAppsController.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarRecentAppsController.kt
@@ -16,7 +16,7 @@
 package com.android.launcher3.taskbar
 
 import android.content.Context
-import android.window.flags.DesktopModeFlags
+import android.window.DesktopModeFlags
 import androidx.annotation.VisibleForTesting
 import com.android.launcher3.Flags.enableRecentsInTaskbar
 import com.android.launcher3.model.data.ItemInfo
diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index 0e7abf2..39bf6ac 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -19,7 +19,7 @@
 import static android.os.Trace.TRACE_TAG_APP;
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_OPTIMIZE_MEASURE;
 import static android.view.accessibility.AccessibilityEvent.TYPE_VIEW_FOCUSED;
-import static android.window.flags.DesktopModeFlags.ENABLE_DESKTOP_WINDOWING_WALLPAPER_ACTIVITY;
+import static android.window.DesktopModeFlags.ENABLE_DESKTOP_WINDOWING_WALLPAPER_ACTIVITY;
 
 import static com.android.app.animation.Interpolators.EMPHASIZED;
 import static com.android.internal.jank.Cuj.CUJ_LAUNCHER_LAUNCH_APP_PAIR_FROM_WORKSPACE;
@@ -1316,6 +1316,10 @@
         mTISBindHelper.setPredictiveBackToHomeInProgress(isInProgress);
     }
 
+    public boolean getPredictiveBackToHomeInProgress() {
+        return mIsPredictiveBackToHomeInProgress;
+    }
+
     @Override
     public boolean areDesktopTasksVisible() {
         DesktopVisibilityController desktopVisibilityController = getDesktopVisibilityController();
diff --git a/quickstep/src/com/android/launcher3/uioverrides/flags/DevOptionsUiHelper.kt b/quickstep/src/com/android/launcher3/uioverrides/flags/DevOptionsUiHelper.kt
index 181cba0..417bb74 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/flags/DevOptionsUiHelper.kt
+++ b/quickstep/src/com/android/launcher3/uioverrides/flags/DevOptionsUiHelper.kt
@@ -35,9 +35,6 @@
 import android.provider.Settings.Secure
 import android.text.Html
 import android.util.AttributeSet
-import android.util.Base64
-import android.util.Base64.NO_PADDING
-import android.util.Base64.NO_WRAP
 import android.view.inputmethod.EditorInfo
 import android.widget.TextView
 import android.widget.Toast
@@ -57,9 +54,10 @@
 import com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET
 import com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT
 import com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_FOLDER
-import com.android.launcher3.LauncherSettings.Settings.LAYOUT_DIGEST_KEY
 import com.android.launcher3.LauncherSettings.Settings.LAYOUT_DIGEST_LABEL
 import com.android.launcher3.LauncherSettings.Settings.LAYOUT_DIGEST_TAG
+import com.android.launcher3.LauncherSettings.Settings.LAYOUT_PROVIDER_KEY
+import com.android.launcher3.LauncherSettings.Settings.createBlobProviderKey
 import com.android.launcher3.R
 import com.android.launcher3.model.data.FolderInfo
 import com.android.launcher3.model.data.ItemInfo
@@ -241,7 +239,7 @@
     private fun DebugInfo<Boolean>.getBoolValue() =
         DeviceConfigHelper.prefs.getBoolean(
             this.key,
-            DeviceConfig.getBoolean(NAMESPACE_LAUNCHER, this.key, this.valueInCode)
+            DeviceConfig.getBoolean(NAMESPACE_LAUNCHER, this.key, this.valueInCode),
         )
 
     private fun DebugInfo<Int>.getIntValueAsString() =
@@ -265,7 +263,7 @@
         val pluginPermissionApps =
             pm.getPackagesHoldingPermissions(
                     arrayOf(PLUGIN_PERMISSION),
-                    PackageManager.MATCH_DISABLED_COMPONENTS
+                    PackageManager.MATCH_DISABLED_COMPONENTS,
                 )
                 .map { it.packageName }
 
@@ -274,7 +272,7 @@
                 pm.queryIntentServices(
                         Intent(action),
                         PackageManager.MATCH_DISABLED_COMPONENTS or
-                            PackageManager.GET_RESOLVED_FILTER
+                            PackageManager.GET_RESOLVED_FILTER,
                     )
                     .filter { pluginPermissionApps.contains(it.serviceInfo.packageName) }
             }
@@ -316,7 +314,7 @@
                             infoList.forEach {
                                 manager.pluginEnabler.setDisabled(
                                     it.serviceInfo.componentName,
-                                    disabledState
+                                    disabledState,
                                 )
                             }
                             manager.notifyChange(Intent(Intent.ACTION_PACKAGE_CHANGED, pluginUri))
@@ -387,12 +385,12 @@
             addOnboardPref(
                 "All Apps Bounce",
                 HOME_BOUNCE_SEEN.sharedPrefKey,
-                HOME_BOUNCE_COUNT.sharedPrefKey
+                HOME_BOUNCE_COUNT.sharedPrefKey,
             )
             addOnboardPref(
                 "Hybrid Hotseat Education",
                 HOTSEAT_DISCOVERY_TIP_COUNT.sharedPrefKey,
-                HOTSEAT_LONGPRESS_TIP_SEEN.sharedPrefKey
+                HOTSEAT_LONGPRESS_TIP_SEEN.sharedPrefKey,
             )
             addOnboardPref("Taskbar Education", TASKBAR_EDU_TOOLTIP_STEP.sharedPrefKey)
             addOnboardPref("Taskbar Search Education", TASKBAR_SEARCH_EDU_SEEN.sharedPrefKey)
@@ -470,13 +468,16 @@
                         session.allowPublicAccess()
 
                         session.commit(ORDERED_BG_EXECUTOR) {
-                            val key = Base64.encodeToString(digest, NO_WRAP or NO_PADDING)
-                            Secure.putString(resolver, LAYOUT_DIGEST_KEY, key)
+                            Secure.putString(
+                                resolver,
+                                LAYOUT_PROVIDER_KEY,
+                                createBlobProviderKey(digest),
+                            )
 
                             MODEL_EXECUTOR.submit { model.modelDbController.createEmptyDB() }.get()
                             MAIN_EXECUTOR.submit { model.forceReload() }.get()
                             MODEL_EXECUTOR.submit {}.get()
-                            Secure.putString(resolver, LAYOUT_DIGEST_KEY, null)
+                            Secure.putString(resolver, LAYOUT_PROVIDER_KEY, null)
                         }
                     }
                 }
@@ -512,7 +513,7 @@
                     info.providerName.className,
                     info.spanX,
                     info.spanY,
-                    userType
+                    userType,
                 )
         }
     }
@@ -520,7 +521,7 @@
     private fun createUriPickerIntent(
         action: String,
         executor: Executor,
-        callback: (uri: Uri) -> Unit
+        callback: (uri: Uri) -> Unit,
     ): Intent {
         val pendingIntent =
             PendingIntent(
@@ -532,7 +533,7 @@
                         allowlistToken: IBinder?,
                         finishedReceiver: IIntentReceiver?,
                         requiredPermission: String?,
-                        options: Bundle?
+                        options: Bundle?,
                     ) {
                         intent.data?.let { uri -> executor.execute { callback(uri) } }
                     }
diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index 3413532..fbb2c06 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -88,8 +88,8 @@
 import android.view.WindowInsets;
 import android.view.animation.Interpolator;
 import android.widget.Toast;
+import android.window.DesktopModeFlags;
 import android.window.PictureInPictureSurfaceTransaction;
-import android.window.flags.DesktopModeFlags;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -156,6 +156,8 @@
 import com.android.wm.shell.shared.desktopmode.DesktopModeStatus;
 import com.android.wm.shell.shared.startingsurface.SplashScreenExitAnimationUtils;
 
+import kotlin.Unit;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -165,8 +167,6 @@
 import java.util.OptionalInt;
 import java.util.function.Consumer;
 
-import kotlin.Unit;
-
 /**
  * Handles the navigation gestures when Launcher is the default home activity.
  */
diff --git a/quickstep/src/com/android/quickstep/SystemUiProxy.java b/quickstep/src/com/android/quickstep/SystemUiProxy.java
index a55cf18..5f02893 100644
--- a/quickstep/src/com/android/quickstep/SystemUiProxy.java
+++ b/quickstep/src/com/android/quickstep/SystemUiProxy.java
@@ -46,11 +46,11 @@
 import android.view.MotionEvent;
 import android.view.RemoteAnimationTarget;
 import android.view.SurfaceControl;
+import android.window.DesktopModeFlags;
 import android.window.IOnBackInvokedCallback;
 import android.window.RemoteTransition;
 import android.window.TaskSnapshot;
 import android.window.TransitionFilter;
-import android.window.flags.DesktopModeFlags;
 
 import androidx.annotation.MainThread;
 import androidx.annotation.Nullable;
@@ -1492,6 +1492,17 @@
         }
     }
 
+    /** Call shell to remove the desktop that is on given `displayId` */
+    public void removeDesktop(int displayId) {
+        if (mDesktopMode != null) {
+            try {
+                mDesktopMode.removeDesktop(displayId);
+            } catch (RemoteException e) {
+                Log.w(TAG, "Failed call removeDesktop", e);
+            }
+        }
+    }
+
     //
     // Unfold transition
     //
diff --git a/quickstep/src/com/android/quickstep/dagger/QuickstepBaseAppComponent.java b/quickstep/src/com/android/quickstep/dagger/QuickstepBaseAppComponent.java
index eef1f96..341c868 100644
--- a/quickstep/src/com/android/quickstep/dagger/QuickstepBaseAppComponent.java
+++ b/quickstep/src/com/android/quickstep/dagger/QuickstepBaseAppComponent.java
@@ -20,6 +20,7 @@
 import com.android.launcher3.dagger.LauncherBaseAppComponent;
 import com.android.launcher3.model.WellbeingModel;
 import com.android.quickstep.logging.SettingsChangeLogger;
+import com.android.quickstep.util.AsyncClockEventDelegate;
 
 /**
  * Launcher Quickstep base component for Dagger injection.
@@ -33,4 +34,6 @@
     SettingsChangeLogger getSettingsChangeLogger();
 
     WellbeingModel getWellbeingModel();
+
+    AsyncClockEventDelegate getAsyncClockEventDelegate();
 }
diff --git a/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java b/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
index 1d4160d..2daaaf9 100644
--- a/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
+++ b/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
@@ -386,12 +386,12 @@
                 // and then write to StatsLog.
                 app.getModel().enqueueModelUpdateTask((taskController, dataModel, apps) ->
                         write(event, applyOverwrites(mItemInfo.buildProto(
-                                dataModel.collections.get(mItemInfo.container)))));
+                                dataModel.collections.get(mItemInfo.container), mContext))));
             })) {
                 // Write log on the model thread so that logs do not go out of order
                 // (for eg: drop comes after drag)
                 Executors.MODEL_EXECUTOR.execute(
-                        () -> write(event, applyOverwrites(mItemInfo.buildProto())));
+                        () -> write(event, applyOverwrites(mItemInfo.buildProto(mContext))));
             }
         }
 
diff --git a/quickstep/src/com/android/quickstep/util/AsyncClockEventDelegate.java b/quickstep/src/com/android/quickstep/util/AsyncClockEventDelegate.java
index 38ae303..4a84b1b 100644
--- a/quickstep/src/com/android/quickstep/util/AsyncClockEventDelegate.java
+++ b/quickstep/src/com/android/quickstep/util/AsyncClockEventDelegate.java
@@ -32,23 +32,33 @@
 
 import androidx.annotation.WorkerThread;
 
+import com.android.launcher3.dagger.ApplicationContext;
+import com.android.launcher3.dagger.LauncherAppSingleton;
+import com.android.launcher3.dagger.LauncherBaseAppComponent;
+import com.android.launcher3.util.DaggerSingletonObject;
+import com.android.launcher3.util.DaggerSingletonTracker;
+import com.android.launcher3.util.ExecutorUtil;
 import com.android.launcher3.util.MainThreadInitializedObject;
 import com.android.launcher3.util.SafeCloseable;
 import com.android.launcher3.util.SettingsCache;
 import com.android.launcher3.util.SettingsCache.OnChangeListener;
 import com.android.launcher3.util.SimpleBroadcastReceiver;
+import com.android.quickstep.dagger.QuickstepBaseAppComponent;
 
 import java.util.ArrayList;
 import java.util.List;
 
+import javax.inject.Inject;
+
 /**
  * Extension of {@link ClockEventDelegate} to support async event registration
  */
+@LauncherAppSingleton
 public class AsyncClockEventDelegate extends ClockEventDelegate
         implements OnChangeListener, SafeCloseable {
 
-    public static final MainThreadInitializedObject<AsyncClockEventDelegate> INSTANCE =
-            new MainThreadInitializedObject<>(AsyncClockEventDelegate::new);
+    public static final DaggerSingletonObject<AsyncClockEventDelegate> INSTANCE =
+            new DaggerSingletonObject<>(QuickstepBaseAppComponent::getAsyncClockEventDelegate);
 
     private final Context mContext;
     private final SimpleBroadcastReceiver mReceiver =
@@ -61,10 +71,12 @@
     private boolean mFormatRegistered = false;
     private boolean mDestroyed = false;
 
-    private AsyncClockEventDelegate(Context context) {
+    @Inject
+    AsyncClockEventDelegate(@ApplicationContext Context context, DaggerSingletonTracker tracker) {
         super(context);
         mContext = context;
         mReceiver.register(mContext, ACTION_TIME_CHANGED, ACTION_TIMEZONE_CHANGED);
+        ExecutorUtil.executeSyncOnMainOrFail(() -> tracker.addCloseable(this));
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/util/ScalingWorkspaceRevealAnim.kt b/quickstep/src/com/android/quickstep/util/ScalingWorkspaceRevealAnim.kt
index a94d023..2f0a6df 100644
--- a/quickstep/src/com/android/quickstep/util/ScalingWorkspaceRevealAnim.kt
+++ b/quickstep/src/com/android/quickstep/util/ScalingWorkspaceRevealAnim.kt
@@ -62,7 +62,8 @@
          * Custom interpolator for both the home and wallpaper scaling. Necessary because EMPHASIZED
          * is too aggressive, but EMPHASIZED_DECELERATE is too soft.
          */
-        private val SCALE_INTERPOLATOR =
+        @JvmField
+        val SCALE_INTERPOLATOR =
             PathInterpolator(
                 Path().apply {
                     moveTo(0f, 0f)
diff --git a/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java b/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
index 00e57c2..bbb8cc8 100644
--- a/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
@@ -16,7 +16,7 @@
 package com.android.quickstep.views;
 
 import static android.app.ActivityTaskManager.INVALID_TASK_ID;
-import static android.window.flags.DesktopModeFlags.ENABLE_DESKTOP_WINDOWING_WALLPAPER_ACTIVITY;
+import static android.window.DesktopModeFlags.ENABLE_DESKTOP_WINDOWING_WALLPAPER_ACTIVITY;
 
 import static com.android.launcher3.LauncherState.CLEAR_ALL_BUTTON;
 import static com.android.launcher3.LauncherState.NORMAL;
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index c405080..7554c44 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -129,6 +129,7 @@
 import android.widget.ListView;
 import android.widget.OverScroller;
 import android.widget.Toast;
+import android.window.DesktopModeFlags;
 import android.window.PictureInPictureSurfaceTransaction;
 
 import androidx.annotation.NonNull;
@@ -3935,9 +3936,11 @@
                     if (shouldRemoveTask) {
                         if (dismissedTaskView.isRunningTask()) {
                             finishRecentsAnimation(true /* toRecents */, false /* shouldPip */,
-                                    () -> removeTaskInternal(dismissedTaskViewId));
+                                    () -> removeTaskInternal(dismissedTaskViewId,
+                                            dismissedTaskView instanceof DesktopTaskView));
                         } else {
-                            removeTaskInternal(dismissedTaskViewId);
+                            removeTaskInternal(dismissedTaskViewId,
+                                    dismissedTaskView instanceof DesktopTaskView);
                         }
                         announceForAccessibility(
                                 getResources().getString(R.string.task_view_closed));
@@ -4305,16 +4308,21 @@
         return lastVisibleIndex;
     }
 
-    private void removeTaskInternal(int dismissedTaskViewId) {
+    private void removeTaskInternal(int dismissedTaskViewId, boolean isDesktop) {
         int[] taskIds = getTaskIdsForTaskViewId(dismissedTaskViewId);
-        UI_HELPER_EXECUTOR.getHandler().post(
-                () -> {
-                    for (int taskId : taskIds) {
-                        if (taskId != -1) {
-                            ActivityManagerWrapper.getInstance().removeTask(taskId);
-                        }
+        UI_HELPER_EXECUTOR.getHandler().post(() -> {
+            if (DesktopModeFlags.ENABLE_DESKTOP_WINDOWING_BACK_NAVIGATION.isTrue() && isDesktop) {
+                // TODO: b/372005228 - Use the api with desktop id instead.
+                SystemUiProxy.INSTANCE.get(getContext()).removeDesktop(
+                        mContainer.getDisplay().getDisplayId());
+            } else {
+                for (int taskId : taskIds) {
+                    if (taskId != -1) {
+                        ActivityManagerWrapper.getInstance().removeTask(taskId);
                     }
-                });
+                }
+            }
+        });
     }
 
     protected void onDismissAnimationEnds() {
diff --git a/src/com/android/launcher3/LauncherSettings.java b/src/com/android/launcher3/LauncherSettings.java
index 87ac193..1d2d161 100644
--- a/src/com/android/launcher3/LauncherSettings.java
+++ b/src/com/android/launcher3/LauncherSettings.java
@@ -16,8 +16,12 @@
 
 package com.android.launcher3;
 
+import static android.util.Base64.NO_PADDING;
+import static android.util.Base64.NO_WRAP;
+
 import android.database.sqlite.SQLiteDatabase;
 import android.provider.BaseColumns;
+import android.util.Base64;
 
 import androidx.annotation.NonNull;
 
@@ -354,8 +358,17 @@
      * Launcher settings
      */
     public static final class Settings {
-        public static final String LAYOUT_DIGEST_KEY = "launcher3.layout.provider.blob";
+        public static final String LAYOUT_PROVIDER_KEY = "launcher3.layout.provider";
         public static final String LAYOUT_DIGEST_LABEL = "launcher-layout";
         public static final String LAYOUT_DIGEST_TAG = "ignore";
+        public static final String BLOB_KEY_PREFIX = "blob://";
+
+        /**
+         * Creates a key to be used for {@link #LAYOUT_PROVIDER_KEY}
+         * @param digest byte[] representing the message digest for the blob handle
+         */
+        public static String createBlobProviderKey(byte[] digest) {
+            return BLOB_KEY_PREFIX + Base64.encodeToString(digest, NO_WRAP | NO_PADDING);
+        }
     }
 }
diff --git a/src/com/android/launcher3/dagger/LauncherBaseAppComponent.java b/src/com/android/launcher3/dagger/LauncherBaseAppComponent.java
index d39c5de..088277b 100644
--- a/src/com/android/launcher3/dagger/LauncherBaseAppComponent.java
+++ b/src/com/android/launcher3/dagger/LauncherBaseAppComponent.java
@@ -21,6 +21,7 @@
 import com.android.launcher3.pm.InstallSessionHelper;
 import com.android.launcher3.util.DaggerSingletonTracker;
 import com.android.launcher3.util.ScreenOnTracker;
+import com.android.launcher3.util.SettingsCache;
 
 import dagger.BindsInstance;
 
@@ -36,6 +37,7 @@
     DaggerSingletonTracker getDaggerSingletonTracker();
     InstallSessionHelper getInstallSessionHelper();
     ScreenOnTracker getScreenOnTracker();
+    SettingsCache getSettingsCache();
 
     /** Builder for LauncherBaseAppComponent. */
     interface Builder {
diff --git a/src/com/android/launcher3/model/ModelDbController.java b/src/com/android/launcher3/model/ModelDbController.java
index da1a221..5d66d16 100644
--- a/src/com/android/launcher3/model/ModelDbController.java
+++ b/src/com/android/launcher3/model/ModelDbController.java
@@ -25,7 +25,8 @@
 import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_APP_PAIR;
 import static com.android.launcher3.LauncherSettings.Favorites.TABLE_NAME;
 import static com.android.launcher3.LauncherSettings.Favorites.addTableToDb;
-import static com.android.launcher3.LauncherSettings.Settings.LAYOUT_DIGEST_KEY;
+import static com.android.launcher3.LauncherSettings.Settings.BLOB_KEY_PREFIX;
+import static com.android.launcher3.LauncherSettings.Settings.LAYOUT_PROVIDER_KEY;
 import static com.android.launcher3.LauncherSettings.Settings.LAYOUT_DIGEST_LABEL;
 import static com.android.launcher3.LauncherSettings.Settings.LAYOUT_DIGEST_TAG;
 import static com.android.launcher3.provider.LauncherDbUtils.tableExists;
@@ -548,9 +549,15 @@
     private AutoInstallsLayout createWorkspaceLoaderFromAppRestriction(
             LauncherWidgetHolder widgetHolder) {
         ContentResolver cr = mContext.getContentResolver();
-        String blobHandlerDigest = Settings.Secure.getString(cr, LAYOUT_DIGEST_KEY);
-        if (!TextUtils.isEmpty(blobHandlerDigest)) {
+        String systemLayoutProvider = Settings.Secure.getString(cr, LAYOUT_PROVIDER_KEY);
+        if (TextUtils.isEmpty(systemLayoutProvider)) {
+            return null;
+        }
+
+        // Try the blob store first
+        if (systemLayoutProvider.startsWith(BLOB_KEY_PREFIX)) {
             BlobStoreManager blobManager = mContext.getSystemService(BlobStoreManager.class);
+            String blobHandlerDigest = systemLayoutProvider.substring(BLOB_KEY_PREFIX.length());
             try (InputStream in = new ParcelFileDescriptor.AutoCloseInputStream(
                     blobManager.openBlob(BlobHandle.createWithSha256(
                             Base64.decode(blobHandlerDigest, NO_WRAP | NO_PADDING),
@@ -562,25 +569,21 @@
             }
         }
 
-        String authority = Settings.Secure.getString(cr, "launcher3.layout.provider");
-        if (TextUtils.isEmpty(authority)) {
-            return null;
-        }
-
+        // Try contentProvider based provider
         PackageManager pm = mContext.getPackageManager();
-        ProviderInfo pi = pm.resolveContentProvider(authority, 0);
+        ProviderInfo pi = pm.resolveContentProvider(systemLayoutProvider, 0);
         if (pi == null) {
-            Log.e(TAG, "No provider found for authority " + authority);
+            Log.e(TAG, "No provider found for authority " + systemLayoutProvider);
             return null;
         }
-        Uri uri = getLayoutUri(authority, mContext);
+        Uri uri = getLayoutUri(systemLayoutProvider, mContext);
         try (InputStream in = cr.openInputStream(uri)) {
-            Log.d(TAG, "Loading layout from " + authority);
+            Log.d(TAG, "Loading layout from " + systemLayoutProvider);
 
             Resources res = pm.getResourcesForApplication(pi.applicationInfo);
             return getAutoInstallsLayoutFromIS(in, widgetHolder, SourceResources.wrap(res));
         } catch (Exception e) {
-            Log.e(TAG, "Error getting layout stream from: " + authority , e);
+            Log.e(TAG, "Error getting layout stream from: " + systemLayoutProvider , e);
             return null;
         }
     }
diff --git a/src/com/android/launcher3/model/data/AppPairInfo.kt b/src/com/android/launcher3/model/data/AppPairInfo.kt
index 2eb6154..3496c17 100644
--- a/src/com/android/launcher3/model/data/AppPairInfo.kt
+++ b/src/com/android/launcher3/model/data/AppPairInfo.kt
@@ -74,7 +74,7 @@
             (ActivityContext.lookupContext(context) as ActivityContext).getDeviceProfile().isTablet
         return Pair(
             isTablet || !getFirstApp().isNonResizeable(),
-            isTablet || !getSecondApp().isNonResizeable()
+            isTablet || !getSecondApp().isNonResizeable(),
         )
     }
 
@@ -105,10 +105,10 @@
     }
 
     /** Generates an ItemInfo for logging. */
-    override fun buildProto(cInfo: CollectionInfo?): LauncherAtom.ItemInfo {
+    override fun buildProto(cInfo: CollectionInfo?, context: Context): LauncherAtom.ItemInfo {
         val appPairIcon = LauncherAtom.FolderIcon.newBuilder().setCardinality(contents.size)
         appPairIcon.setLabelInfo(title.toString())
-        return getDefaultItemInfoBuilder()
+        return getDefaultItemInfoBuilder(context)
             .setFolderIcon(appPairIcon)
             .setRank(rank)
             .setContainerInfo(getContainerInfo())
diff --git a/src/com/android/launcher3/model/data/CollectionInfo.kt b/src/com/android/launcher3/model/data/CollectionInfo.kt
index 4f5e12f..12ba164 100644
--- a/src/com/android/launcher3/model/data/CollectionInfo.kt
+++ b/src/com/android/launcher3/model/data/CollectionInfo.kt
@@ -17,7 +17,6 @@
 package com.android.launcher3.model.data
 
 import com.android.launcher3.LauncherSettings
-import com.android.launcher3.logger.LauncherAtom
 import com.android.launcher3.util.ContentWriter
 import java.util.function.Predicate
 
@@ -42,9 +41,4 @@
         super.onAddToDatabase(writer)
         writer.put(LauncherSettings.Favorites.TITLE, title)
     }
-
-    /** Returns the collection wrapped as {@link LauncherAtom.ItemInfo} for logging. */
-    override fun buildProto(): LauncherAtom.ItemInfo {
-        return buildProto(null)
-    }
 }
diff --git a/src/com/android/launcher3/model/data/FolderInfo.java b/src/com/android/launcher3/model/data/FolderInfo.java
index 18d2b85..f0f2892 100644
--- a/src/com/android/launcher3/model/data/FolderInfo.java
+++ b/src/com/android/launcher3/model/data/FolderInfo.java
@@ -24,6 +24,8 @@
 import static com.android.launcher3.logger.LauncherAtom.Attribute.MANUAL_LABEL;
 import static com.android.launcher3.logger.LauncherAtom.Attribute.SUGGESTED_LABEL;
 
+import android.content.Context;
+
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
@@ -245,13 +247,13 @@
 
     @NonNull
     @Override
-    public LauncherAtom.ItemInfo buildProto(@Nullable CollectionInfo cInfo) {
+    public LauncherAtom.ItemInfo buildProto(@Nullable CollectionInfo cInfo, Context context) {
         FolderIcon.Builder folderIcon = FolderIcon.newBuilder()
                 .setCardinality(getContents().size());
         if (LabelState.SUGGESTED.equals(getLabelState())) {
             folderIcon.setLabelInfo(title.toString());
         }
-        return getDefaultItemInfoBuilder()
+        return getDefaultItemInfoBuilder(context)
                 .setFolderIcon(folderIcon)
                 .setRank(rank)
                 .addItemAttributes(getLabelState().mLogAttribute)
diff --git a/src/com/android/launcher3/model/data/ItemInfo.java b/src/com/android/launcher3/model/data/ItemInfo.java
index b706d24..c22a8a5 100644
--- a/src/com/android/launcher3/model/data/ItemInfo.java
+++ b/src/com/android/launcher3/model/data/ItemInfo.java
@@ -36,6 +36,7 @@
 
 import android.content.ComponentName;
 import android.content.ContentValues;
+import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Process;
@@ -352,16 +353,16 @@
      * Creates {@link LauncherAtom.ItemInfo} with important fields and parent container info.
      */
     @NonNull
-    public LauncherAtom.ItemInfo buildProto() {
-        return buildProto(null);
+    public LauncherAtom.ItemInfo buildProto(Context context) {
+        return buildProto(null, context);
     }
 
     /**
      * Creates {@link LauncherAtom.ItemInfo} with important fields and parent container info.
      */
     @NonNull
-    public LauncherAtom.ItemInfo buildProto(@Nullable final CollectionInfo cInfo) {
-        LauncherAtom.ItemInfo.Builder itemBuilder = getDefaultItemInfoBuilder();
+    public LauncherAtom.ItemInfo buildProto(@Nullable final CollectionInfo cInfo, Context context) {
+        LauncherAtom.ItemInfo.Builder itemBuilder = getDefaultItemInfoBuilder(context);
         Optional<ComponentName> nullableComponent = Optional.ofNullable(getTargetComponent());
         switch (itemType) {
             case ITEM_TYPE_APPLICATION:
@@ -434,10 +435,10 @@
     }
 
     @NonNull
-    protected LauncherAtom.ItemInfo.Builder getDefaultItemInfoBuilder() {
+    protected LauncherAtom.ItemInfo.Builder getDefaultItemInfoBuilder(Context context) {
         LauncherAtom.ItemInfo.Builder itemBuilder = LauncherAtom.ItemInfo.newBuilder();
-        SettingsCache.INSTANCE.executeIfCreated(cache ->
-                itemBuilder.setIsKidsMode(cache.getValue(NAV_BAR_KIDS_MODE, 0)));
+        itemBuilder.setIsKidsMode(
+                SettingsCache.INSTANCE.get(context).getValue(NAV_BAR_KIDS_MODE, 0));
         UserCache.INSTANCE.executeIfCreated(cache ->
                 itemBuilder.setUserType(getUserType(cache.getUserInfo(user))));
         itemBuilder.setRank(rank);
diff --git a/src/com/android/launcher3/model/data/LauncherAppWidgetInfo.java b/src/com/android/launcher3/model/data/LauncherAppWidgetInfo.java
index 361f09d..7569ed5 100644
--- a/src/com/android/launcher3/model/data/LauncherAppWidgetInfo.java
+++ b/src/com/android/launcher3/model/data/LauncherAppWidgetInfo.java
@@ -24,6 +24,7 @@
 
 import android.appwidget.AppWidgetHostView;
 import android.content.ComponentName;
+import android.content.Context;
 import android.content.Intent;
 import android.content.res.Resources;
 import android.os.Process;
@@ -270,8 +271,9 @@
 
     @NonNull
     @Override
-    public LauncherAtom.ItemInfo buildProto(@Nullable CollectionInfo collectionInfo) {
-        LauncherAtom.ItemInfo info = super.buildProto(collectionInfo);
+    public LauncherAtom.ItemInfo buildProto(
+            @Nullable CollectionInfo collectionInfo, Context context) {
+        LauncherAtom.ItemInfo info = super.buildProto(collectionInfo, context);
         return info.toBuilder()
                 .setWidget(info.getWidget().toBuilder().setWidgetFeatures(widgetFeatures))
                 .addItemAttributes(getAttribute(sourceContainer))
diff --git a/src/com/android/launcher3/util/MainThreadInitializedObject.java b/src/com/android/launcher3/util/MainThreadInitializedObject.java
index a7d5c13..9a70298 100644
--- a/src/com/android/launcher3/util/MainThreadInitializedObject.java
+++ b/src/com/android/launcher3/util/MainThreadInitializedObject.java
@@ -50,7 +50,7 @@
 
     public T get(Context context) {
         Context app = context.getApplicationContext();
-        if (app instanceof SandboxApplication sc) {
+        if (app instanceof ObjectSandbox sc) {
             return sc.getObject(this);
         }
 
@@ -100,7 +100,8 @@
         T get(Context context);
     }
 
-    public interface SandboxApplication {
+    /** Sandbox for isolating {@link MainThreadInitializedObject} instances from Launcher. */
+    public interface ObjectSandbox {
 
         /**
          * Find a cached object from mObjectMap if we have already created one. If not, generate
@@ -116,7 +117,7 @@
         <T extends SafeCloseable> void putObject(MainThreadInitializedObject<T> object, T value);
 
         /**
-         * Returns whether this context should cleanup all objects when its destroyed or leave it
+         * Returns whether this sandbox should cleanup all objects when its destroyed or leave it
          * to the GC.
          * These objects can have listeners attached to the system server and mey not be able to get
          * GCed themselves when running on a device.
@@ -137,7 +138,7 @@
      * Abstract Context which allows custom implementations for
      * {@link MainThreadInitializedObject} providers
      */
-    public static class SandboxContext extends LauncherApplication implements SandboxApplication {
+    public static class SandboxContext extends LauncherApplication implements ObjectSandbox {
 
         private static final String TAG = "SandboxContext";
 
@@ -159,8 +160,8 @@
 
         @Override
         public boolean shouldCleanUpOnDestroy() {
-            return (getBaseContext().getApplicationContext() instanceof SandboxApplication sa)
-                    ? sa.shouldCleanUpOnDestroy() : true;
+            return (getBaseContext().getApplicationContext() instanceof ObjectSandbox os)
+                    ? os.shouldCleanUpOnDestroy() : true;
         }
 
         public void onDestroy() {
diff --git a/src/com/android/launcher3/util/SettingsCache.java b/src/com/android/launcher3/util/SettingsCache.java
index cd6701d..a1ed499 100644
--- a/src/com/android/launcher3/util/SettingsCache.java
+++ b/src/com/android/launcher3/util/SettingsCache.java
@@ -25,14 +25,21 @@
 import android.database.ContentObserver;
 import android.net.Uri;
 import android.os.Handler;
+import android.os.Looper;
 import android.provider.Settings;
 
+import com.android.launcher3.dagger.ApplicationContext;
+import com.android.launcher3.dagger.LauncherAppSingleton;
+import com.android.launcher3.dagger.LauncherBaseAppComponent;
+
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.CopyOnWriteArrayList;
 
+import javax.inject.Inject;
+
 /**
  * ContentObserver over Settings keys that also has a caching layer.
  * Consumers can register for callbacks via {@link #register(Uri, OnChangeListener)} and
@@ -47,6 +54,7 @@
  *
  * Cache will also be updated if a key queried is missing (even if it has no listeners registered).
  */
+@LauncherAppSingleton
 public class SettingsCache extends ContentObserver implements SafeCloseable {
 
     /** Hidden field Settings.Secure.NOTIFICATION_BADGING */
@@ -79,12 +87,14 @@
     /**
      * Singleton instance
      */
-    public static MainThreadInitializedObject<SettingsCache> INSTANCE =
-            new MainThreadInitializedObject<>(SettingsCache::new);
+    public static final DaggerSingletonObject<SettingsCache> INSTANCE =
+            new DaggerSingletonObject<>(LauncherBaseAppComponent::getSettingsCache);
 
-    private SettingsCache(Context context) {
-        super(new Handler());
+    @Inject
+    SettingsCache(@ApplicationContext Context context, DaggerSingletonTracker tracker) {
+        super(new Handler(Looper.getMainLooper()));
         mResolver = context.getContentResolver();
+        ExecutorUtil.executeSyncOnMainOrFail(() -> tracker.addCloseable(this));
     }
 
     @Override
diff --git a/src/com/android/launcher3/widget/PendingAddWidgetInfo.java b/src/com/android/launcher3/widget/PendingAddWidgetInfo.java
index a916252..23ab0fb 100644
--- a/src/com/android/launcher3/widget/PendingAddWidgetInfo.java
+++ b/src/com/android/launcher3/widget/PendingAddWidgetInfo.java
@@ -82,8 +82,9 @@
 
     @NonNull
     @Override
-    public LauncherAtom.ItemInfo buildProto(@Nullable CollectionInfo collectionInfo) {
-        LauncherAtom.ItemInfo info = super.buildProto(collectionInfo);
+    public LauncherAtom.ItemInfo buildProto(
+            @Nullable CollectionInfo collectionInfo, Context context) {
+        LauncherAtom.ItemInfo info = super.buildProto(collectionInfo, context);
         return info.toBuilder()
                 .addItemAttributes(LauncherAppWidgetInfo.getAttribute(sourceContainer))
                 .build();
diff --git a/tests/multivalentTests/src/com/android/launcher3/folder/PreviewItemManagerTest.kt b/tests/multivalentTests/src/com/android/launcher3/folder/PreviewItemManagerTest.kt
index d236551..111ffaa 100644
--- a/tests/multivalentTests/src/com/android/launcher3/folder/PreviewItemManagerTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/folder/PreviewItemManagerTest.kt
@@ -29,7 +29,6 @@
 import com.android.launcher3.icons.BaseIconFactory
 import com.android.launcher3.icons.FastBitmapDrawable
 import com.android.launcher3.icons.UserBadgeDrawable
-import com.android.launcher3.model.ModelTestRule
 import com.android.launcher3.model.data.FolderInfo
 import com.android.launcher3.model.data.ItemInfo
 import com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_ARCHIVED
@@ -45,7 +44,6 @@
 import com.google.common.truth.Truth.assertThat
 import org.junit.After
 import org.junit.Before
-import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
 
@@ -54,8 +52,6 @@
 @RunWith(AndroidJUnit4::class)
 class PreviewItemManagerTest {
 
-    @get:Rule val modelTestRule = ModelTestRule()
-
     private lateinit var previewItemManager: PreviewItemManager
     private lateinit var context: Context
     private lateinit var folderItems: ArrayList<ItemInfo>
@@ -99,8 +95,8 @@
                 BaseIconFactory(
                     context,
                     context.resources.configuration.densityDpi,
-                    previewItemManager.mIconSize
-                )
+                    previewItemManager.mIconSize,
+                ),
             )
 
         // Set second icon to be non-themed.
@@ -111,8 +107,8 @@
                 BaseIconFactory(
                     context,
                     context.resources.configuration.densityDpi,
-                    previewItemManager.mIconSize
-                )
+                    previewItemManager.mIconSize,
+                ),
             )
 
         // Set third icon to be themed with badge.
@@ -123,8 +119,8 @@
                 BaseIconFactory(
                     context,
                     context.resources.configuration.densityDpi,
-                    previewItemManager.mIconSize
-                )
+                    previewItemManager.mIconSize,
+                ),
             )
         folderApps[2].bitmap = folderApps[2].bitmap.withFlags(profileFlagOp(UserIconInfo.TYPE_WORK))
 
@@ -137,8 +133,8 @@
                 BaseIconFactory(
                     context,
                     context.resources.configuration.densityDpi,
-                    previewItemManager.mIconSize
-                )
+                    previewItemManager.mIconSize,
+                ),
             )
 
         defaultThemedIcons = get(context).get(THEMED_ICONS)
diff --git a/tests/multivalentTests/src/com/android/launcher3/icons/IconCacheTest.java b/tests/multivalentTests/src/com/android/launcher3/icons/IconCacheTest.java
index 519108d..ce00b28 100644
--- a/tests/multivalentTests/src/com/android/launcher3/icons/IconCacheTest.java
+++ b/tests/multivalentTests/src/com/android/launcher3/icons/IconCacheTest.java
@@ -68,7 +68,6 @@
 import com.android.launcher3.util.ApplicationInfoWrapper;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.PackageUserKey;
-import com.android.launcher3.util.RoboApiWrapper;
 
 import com.google.common.truth.Truth;
 
@@ -148,7 +147,6 @@
 
     @Test
     public void launcherActivityInfo_cached_in_memory() {
-        RoboApiWrapper.INSTANCE.initialize();
         ComponentName cn = new ComponentName(TEST_PACKAGE, TEST_ACTIVITY);
         UserHandle user = myUserHandle();
         ComponentKey cacheKey = new ComponentKey(cn, user);
@@ -213,7 +211,6 @@
 
     @Test
     public void item_kept_in_db_if_nothing_changes() {
-        RoboApiWrapper.INSTANCE.initialize();
         ComponentName cn = new ComponentName(TEST_PACKAGE, TEST_ACTIVITY);
         UserHandle user = myUserHandle();
 
@@ -232,7 +229,6 @@
 
     @Test
     public void item_updated_in_db_if_appInfo_changes() {
-        RoboApiWrapper.INSTANCE.initialize();
         ComponentName cn = new ComponentName(TEST_PACKAGE, TEST_ACTIVITY);
         UserHandle user = myUserHandle();
 
@@ -253,7 +249,6 @@
 
     @Test
     public void item_removed_in_db_if_item_removed() {
-        RoboApiWrapper.INSTANCE.initialize();
         ComponentName cn = new ComponentName(TEST_PACKAGE, TEST_ACTIVITY);
         UserHandle user = myUserHandle();
 
diff --git a/tests/multivalentTests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.kt b/tests/multivalentTests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.kt
index 43dc36b..ce04682 100644
--- a/tests/multivalentTests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.kt
@@ -27,7 +27,6 @@
 import com.google.common.truth.Truth.assertThat
 import org.junit.After
 import org.junit.Before
-import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.mockito.Mockito.times
@@ -44,8 +43,6 @@
 @RunWith(AndroidJUnit4::class)
 class AddWorkspaceItemsTaskTest : AbstractWorkspaceModelTest() {
 
-    @get:Rule val modelTestRule = ModelTestRule()
-
     private lateinit var mDataModelCallbacks: MyCallbacks
 
     private val mWorkspaceItemSpaceFinder: WorkspaceItemSpaceFinder = mock()
@@ -121,18 +118,8 @@
     @Test
     fun givenMultipleItems_whenExecuteTask_thenAddThem() {
         val itemsToAdd =
-            arrayOf(
-                getNewItem(),
-                getExistingItem(),
-                getNewItem(),
-                getNewItem(),
-                getExistingItem(),
-            )
-        givenNewItemSpaces(
-            NewItemSpace(1, 3, 3),
-            NewItemSpace(2, 0, 0),
-            NewItemSpace(2, 0, 1),
-        )
+            arrayOf(getNewItem(), getExistingItem(), getNewItem(), getNewItem(), getExistingItem())
+        givenNewItemSpaces(NewItemSpace(1, 3, 3), NewItemSpace(2, 0, 0), NewItemSpace(2, 0, 1))
         val nonEmptyScreenIds = listOf(0, 1)
 
         val addedItems = testAddItems(nonEmptyScreenIds, *itemsToAdd)
@@ -173,7 +160,7 @@
                 eq(IntArray.wrap(*nonEmptyScreenIds.toIntArray())),
                 eq(IntArray()),
                 eq(1),
-                eq(1)
+                eq(1),
             )
     }
 
@@ -183,7 +170,7 @@
      */
     private fun testAddItems(
         nonEmptyScreenIds: List<Int>,
-        vararg itemsToAdd: WorkspaceItemInfo
+        vararg itemsToAdd: WorkspaceItemInfo,
     ): List<AddedItem> {
         setupWorkspaces(nonEmptyScreenIds)
         val task = newTask(*itemsToAdd)
@@ -220,7 +207,7 @@
     override fun bindAppsAdded(
         newScreens: IntArray?,
         addNotAnimated: ArrayList<ItemInfo>,
-        addAnimated: ArrayList<ItemInfo>
+        addAnimated: ArrayList<ItemInfo>,
     ) {
         addedItems.addAll(addAnimated.map { AddedItem(it, true) })
         addedItems.addAll(addNotAnimated.map { AddedItem(it, false) })
diff --git a/tests/multivalentTests/src/com/android/launcher3/model/AsyncBindingTest.kt b/tests/multivalentTests/src/com/android/launcher3/model/AsyncBindingTest.kt
index dce75b9..c91577f 100644
--- a/tests/multivalentTests/src/com/android/launcher3/model/AsyncBindingTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/model/AsyncBindingTest.kt
@@ -64,8 +64,6 @@
 
     @get:Rule val setFlagsRule = SetFlagsRule()
 
-    @get:Rule val modelTestRule = ModelTestRule()
-
     @Spy private var callbacks = MyCallbacks()
     @Mock private lateinit var itemInflater: ItemInflater<*>
 
@@ -203,7 +201,7 @@
             pendingTasks: RunnableList,
             onCompleteSignal: RunnableList,
             workspaceItemCount: Int,
-            isBindSync: Boolean
+            isBindSync: Boolean,
         ) {
             this.pendingTasks = pendingTasks
             this.onCompleteSignal = onCompleteSignal
diff --git a/tests/multivalentTests/src/com/android/launcher3/model/CacheDataUpdatedTaskTest.java b/tests/multivalentTests/src/com/android/launcher3/model/CacheDataUpdatedTaskTest.java
index 535080a..600af42 100644
--- a/tests/multivalentTests/src/com/android/launcher3/model/CacheDataUpdatedTaskTest.java
+++ b/tests/multivalentTests/src/com/android/launcher3/model/CacheDataUpdatedTaskTest.java
@@ -64,11 +64,7 @@
 @RunWith(AndroidJUnit4.class)
 public class CacheDataUpdatedTaskTest {
 
-    @Rule(order = 0)
-    public TestRule testStabilityRule = new TestStabilityRule();
-
-    @Rule(order = 1)
-    public ModelTestRule mModelTestRule = new ModelTestRule();
+    @Rule public TestRule testStabilityRule = new TestStabilityRule();
 
     private static final String PENDING_APP_1 = TEST_PACKAGE + ".pending1";
     private static final String PENDING_APP_2 = TEST_PACKAGE + ".pending2";
diff --git a/tests/multivalentTests/src/com/android/launcher3/model/DefaultLayoutProviderTest.java b/tests/multivalentTests/src/com/android/launcher3/model/DefaultLayoutProviderTest.java
index e14e145..1e2431f 100644
--- a/tests/multivalentTests/src/com/android/launcher3/model/DefaultLayoutProviderTest.java
+++ b/tests/multivalentTests/src/com/android/launcher3/model/DefaultLayoutProviderTest.java
@@ -39,7 +39,6 @@
 
 import org.junit.After;
 import org.junit.Before;
-import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
@@ -50,8 +49,6 @@
 @RunWith(AndroidJUnit4.class)
 public class DefaultLayoutProviderTest {
 
-    @Rule public ModelTestRule rule = new ModelTestRule();
-
     private LauncherModelHelper mModelHelper;
     private LauncherModelHelper.SandboxModelContext mTargetContext;
 
diff --git a/tests/multivalentTests/src/com/android/launcher3/model/FirstScreenBroadcastHelperTest.kt b/tests/multivalentTests/src/com/android/launcher3/model/FirstScreenBroadcastHelperTest.kt
index d2d9512..9cc380e 100644
--- a/tests/multivalentTests/src/com/android/launcher3/model/FirstScreenBroadcastHelperTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/model/FirstScreenBroadcastHelperTest.kt
@@ -34,7 +34,6 @@
 import com.android.launcher3.util.PackageManagerHelper
 import com.android.launcher3.util.PackageUserKey
 import junit.framework.Assert.assertEquals
-import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.mockito.ArgumentCaptor
@@ -46,8 +45,6 @@
 @RunWith(AndroidJUnit4::class)
 class FirstScreenBroadcastHelperTest {
 
-    @get:Rule val modelTestRule = ModelTestRule()
-
     private val context = spy(InstrumentationRegistry.getInstrumentation().targetContext)
     private val mockPmHelper = mock<PackageManagerHelper>()
     private val expectedAppPackage = "appPackageExpected"
@@ -70,7 +67,7 @@
                 container = CONTAINER_HOTSEAT
                 intent = expectedIntent
             },
-            LauncherAppWidgetInfo().apply { providerName = expectedComponentName }
+            LauncherAppWidgetInfo().apply { providerName = expectedComponentName },
         )
 
     @Test
@@ -89,7 +86,7 @@
         val sessionInfoMap: HashMap<PackageUserKey, SessionInfo> =
             hashMapOf(
                 PackageUserKey(unexpectedAppPackage, UserHandle(0)) to sessionInfoExpected,
-                PackageUserKey(expectedAppPackage, UserHandle(0)) to sessionInfoUnexpected
+                PackageUserKey(expectedAppPackage, UserHandle(0)) to sessionInfoUnexpected,
             )
 
         // When
@@ -98,7 +95,7 @@
                 packageManagerHelper = mockPmHelper,
                 firstScreenItems = firstScreenItems,
                 userKeyToSessionMap = sessionInfoMap,
-                allWidgets = listOf()
+                allWidgets = listOf(),
             )
 
         // Then
@@ -108,7 +105,7 @@
                     installerPackage = expectedInstallerPackage,
                     pendingWorkspaceItems = mutableSetOf(expectedAppPackage),
                     pendingHotseatItems = mutableSetOf(expectedAppPackage),
-                    pendingWidgetItems = mutableSetOf(expectedAppPackage)
+                    pendingWidgetItems = mutableSetOf(expectedAppPackage),
                 )
             )
 
@@ -133,7 +130,7 @@
                             providerName = expectedComponentName
                             screenId = 0
                         }
-                    )
+                    ),
             )
 
         // Then
@@ -143,7 +140,7 @@
                     installerPackage = expectedInstallerPackage,
                     installedHotseatItems = mutableSetOf(expectedAppPackage),
                     installedWorkspaceItems = mutableSetOf(expectedAppPackage),
-                    firstScreenInstalledWidgets = mutableSetOf(expectedAppPackage)
+                    firstScreenInstalledWidgets = mutableSetOf(expectedAppPackage),
                 )
             )
         assertEquals(expectedResult, actualResult)
@@ -178,8 +175,8 @@
                         LauncherAppWidgetInfo().apply {
                             providerName = unexpectedComponentName
                             screenId = 0
-                        }
-                    )
+                        },
+                    ),
             )
 
         // Then
@@ -190,7 +187,7 @@
                     installedHotseatItems = mutableSetOf(),
                     installedWorkspaceItems = mutableSetOf(),
                     firstScreenInstalledWidgets = mutableSetOf(expectedAppPackage),
-                    secondaryScreenInstalledWidgets = mutableSetOf(expectedAppPackage2)
+                    secondaryScreenInstalledWidgets = mutableSetOf(expectedAppPackage2),
                 )
             )
         assertEquals(expectedResult, actualResult)
@@ -224,7 +221,7 @@
                 packageManagerHelper = mockPmHelper,
                 firstScreenItems = firstScreenItems,
                 userKeyToSessionMap = sessionInfoMap,
-                allWidgets = listOf()
+                allWidgets = listOf(),
             )
 
         // Then
@@ -232,7 +229,7 @@
             listOf(
                 FirstScreenBroadcastModel(
                     installerPackage = expectedInstallerPackage,
-                    pendingCollectionItems = mutableSetOf(expectedAppPackage)
+                    pendingCollectionItems = mutableSetOf(expectedAppPackage),
                 )
             )
         assertEquals(expectedResult, actualResult)
@@ -259,7 +256,7 @@
                 firstScreenInstalledWidgets =
                     mutableSetOf<String>().apply { repeat(20) { add(it.toString()) } },
                 secondaryScreenInstalledWidgets =
-                    mutableSetOf<String>().apply { repeat(20) { add(it.toString()) } }
+                    mutableSetOf<String>().apply { repeat(20) { add(it.toString()) } },
             )
 
         // When
@@ -334,7 +331,7 @@
                     installedWorkspaceItems = mutableSetOf("installedWorkspaceItems"),
                     installedHotseatItems = mutableSetOf("installedHotseatItems"),
                     firstScreenInstalledWidgets = mutableSetOf("firstScreenInstalledWidgetItems"),
-                    secondaryScreenInstalledWidgets = mutableSetOf("secondaryInstalledWidgetItems")
+                    secondaryScreenInstalledWidgets = mutableSetOf("secondaryInstalledWidgetItems"),
                 )
             )
         val expectedPendingIntent =
@@ -342,7 +339,7 @@
                 context,
                 0 /* requestCode */,
                 Intent(),
-                PendingIntent.FLAG_ONE_SHOT or PendingIntent.FLAG_IMMUTABLE
+                PendingIntent.FLAG_ONE_SHOT or PendingIntent.FLAG_IMMUTABLE,
             )
 
         // When
@@ -354,40 +351,40 @@
 
         assertEquals(
             "com.android.launcher3.action.FIRST_SCREEN_ACTIVE_INSTALLS",
-            argumentCaptor.value.action
+            argumentCaptor.value.action,
         )
         assertEquals(expectedInstallerPackage, argumentCaptor.value.`package`)
         assertEquals(
             expectedPendingIntent,
-            argumentCaptor.value.getParcelableExtra("verificationToken")
+            argumentCaptor.value.getParcelableExtra("verificationToken"),
         )
         assertEquals(
             arrayListOf("pendingCollectionItem"),
-            argumentCaptor.value.getStringArrayListExtra("folderItem")
+            argumentCaptor.value.getStringArrayListExtra("folderItem"),
         )
         assertEquals(
             arrayListOf("pendingWorkspaceItem"),
-            argumentCaptor.value.getStringArrayListExtra("workspaceItem")
+            argumentCaptor.value.getStringArrayListExtra("workspaceItem"),
         )
         assertEquals(
             arrayListOf("pendingHotseatItems"),
-            argumentCaptor.value.getStringArrayListExtra("hotseatItem")
+            argumentCaptor.value.getStringArrayListExtra("hotseatItem"),
         )
         assertEquals(
             arrayListOf("pendingWidgetItems"),
-            argumentCaptor.value.getStringArrayListExtra("widgetItem")
+            argumentCaptor.value.getStringArrayListExtra("widgetItem"),
         )
         assertEquals(
             arrayListOf("installedWorkspaceItems"),
-            argumentCaptor.value.getStringArrayListExtra("workspaceInstalledItems")
+            argumentCaptor.value.getStringArrayListExtra("workspaceInstalledItems"),
         )
         assertEquals(
             arrayListOf("installedHotseatItems"),
-            argumentCaptor.value.getStringArrayListExtra("hotseatInstalledItems")
+            argumentCaptor.value.getStringArrayListExtra("hotseatInstalledItems"),
         )
         assertEquals(
             arrayListOf("firstScreenInstalledWidgetItems", "secondaryInstalledWidgetItems"),
-            argumentCaptor.value.getStringArrayListExtra("widgetInstalledItems")
+            argumentCaptor.value.getStringArrayListExtra("widgetInstalledItems"),
         )
     }
 }
diff --git a/tests/multivalentTests/src/com/android/launcher3/model/FolderIconLoadTest.kt b/tests/multivalentTests/src/com/android/launcher3/model/FolderIconLoadTest.kt
index 4ca47e3..e8f778f 100644
--- a/tests/multivalentTests/src/com/android/launcher3/model/FolderIconLoadTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/model/FolderIconLoadTest.kt
@@ -30,7 +30,6 @@
 import com.google.common.truth.Truth.assertWithMessage
 import org.junit.After
 import org.junit.Before
-import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
 
@@ -39,8 +38,6 @@
 @RunWith(AndroidJUnit4::class)
 class FolderIconLoadTest {
 
-    @get:Rule(order = 0) val modelTestRule = ModelTestRule()
-
     private lateinit var modelHelper: LauncherModelHelper
 
     private val uniqueActivities =
diff --git a/tests/multivalentTests/src/com/android/launcher3/model/LoaderCursorTest.java b/tests/multivalentTests/src/com/android/launcher3/model/LoaderCursorTest.java
index ac911b3..b4945d7 100644
--- a/tests/multivalentTests/src/com/android/launcher3/model/LoaderCursorTest.java
+++ b/tests/multivalentTests/src/com/android/launcher3/model/LoaderCursorTest.java
@@ -67,7 +67,6 @@
 
 import org.junit.After;
 import org.junit.Before;
-import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
@@ -78,8 +77,6 @@
 @RunWith(AndroidJUnit4.class)
 public class LoaderCursorTest {
 
-    @Rule public ModelTestRule rule = new ModelTestRule();
-
     private LauncherModelHelper mModelHelper;
     private LauncherAppState mApp;
     private PackageManagerHelper mPmHelper;
diff --git a/tests/multivalentTests/src/com/android/launcher3/model/ModelTestRule.kt b/tests/multivalentTests/src/com/android/launcher3/model/ModelTestRule.kt
deleted file mode 100644
index ad2c2a4..0000000
--- a/tests/multivalentTests/src/com/android/launcher3/model/ModelTestRule.kt
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright (C) 2024 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.launcher3.model
-
-import com.android.launcher3.util.RoboApiWrapper
-import org.junit.rules.TestWatcher
-import org.junit.runner.Description
-
-class ModelTestRule : TestWatcher() {
-    override fun starting(description: Description?) {
-        RoboApiWrapper.initialize()
-    }
-}
diff --git a/tests/multivalentTests/src/com/android/launcher3/model/PackageInstallStateChangedTaskTest.java b/tests/multivalentTests/src/com/android/launcher3/model/PackageInstallStateChangedTaskTest.java
index a0d9da9..0f1fc00 100644
--- a/tests/multivalentTests/src/com/android/launcher3/model/PackageInstallStateChangedTaskTest.java
+++ b/tests/multivalentTests/src/com/android/launcher3/model/PackageInstallStateChangedTaskTest.java
@@ -37,7 +37,6 @@
 
 import org.junit.After;
 import org.junit.Before;
-import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
@@ -48,8 +47,6 @@
 @RunWith(AndroidJUnit4.class)
 public class PackageInstallStateChangedTaskTest {
 
-    @Rule public ModelTestRule mModelTestRule = new ModelTestRule();
-
     private static final String PENDING_APP_1 = TEST_PACKAGE + ".pending1";
     private static final String PENDING_APP_2 = TEST_PACKAGE + ".pending2";
 
diff --git a/tests/multivalentTests/src/com/android/launcher3/model/WorkspaceItemProcessorTest.kt b/tests/multivalentTests/src/com/android/launcher3/model/WorkspaceItemProcessorTest.kt
index c7abce6..ed8b397 100644
--- a/tests/multivalentTests/src/com/android/launcher3/model/WorkspaceItemProcessorTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/model/WorkspaceItemProcessorTest.kt
@@ -58,7 +58,6 @@
 import com.google.common.truth.Truth.assertThat
 import com.google.common.truth.Truth.assertWithMessage
 import org.junit.Before
-import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.mockito.ArgumentCaptor
@@ -77,8 +76,6 @@
 @RunWith(AndroidJUnit4::class)
 class WorkspaceItemProcessorTest {
 
-    @get:Rule val modelTestRule = ModelTestRule()
-
     @Mock private lateinit var mockIconRequestInfo: IconRequestInfo<WorkspaceItemInfo>
     @Mock private lateinit var mockWorkspaceInfo: WorkspaceItemInfo
     @Mock private lateinit var mockBgDataModel: BgDataModel
diff --git a/tests/multivalentTests/src/com/android/launcher3/model/WorkspaceItemSpaceFinderTest.kt b/tests/multivalentTests/src/com/android/launcher3/model/WorkspaceItemSpaceFinderTest.kt
index ae8e966..dd03eee 100644
--- a/tests/multivalentTests/src/com/android/launcher3/model/WorkspaceItemSpaceFinderTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/model/WorkspaceItemSpaceFinderTest.kt
@@ -21,7 +21,6 @@
 import com.google.common.truth.Truth.assertThat
 import org.junit.After
 import org.junit.Before
-import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
 
@@ -30,8 +29,6 @@
 @RunWith(AndroidJUnit4::class)
 class WorkspaceItemSpaceFinderTest : AbstractWorkspaceModelTest() {
 
-    @get:Rule val modelTestRule = ModelTestRule()
-
     private val mItemSpaceFinder = WorkspaceItemSpaceFinder()
 
     @Before
@@ -52,7 +49,7 @@
                 mExistingScreens,
                 mNewScreens,
                 spanX,
-                spanY
+                spanY,
             )
             .let { NewItemSpace.fromIntArray(it) }
 
@@ -62,7 +59,7 @@
                     newItemSpace.cellX,
                     newItemSpace.cellY,
                     spanX,
-                    spanY
+                    spanY,
                 )
             )
             .isTrue()
@@ -171,7 +168,7 @@
             screen0 = listOf(Rect(2, 0, 5, 2)),
             screen1 = fullScreenSpaces, // full screens are skipped
             screen2 = fullScreenSpaces, // full screens are skipped
-            screen3 = emptyScreenSpaces
+            screen3 = emptyScreenSpaces,
         )
 
         val spaceFound = findSpace(3, 1)
diff --git a/tests/multivalentTests/src/com/android/launcher3/pm/InstallSessionTrackerTest.kt b/tests/multivalentTests/src/com/android/launcher3/pm/InstallSessionTrackerTest.kt
index d860710..15a9964 100644
--- a/tests/multivalentTests/src/com/android/launcher3/pm/InstallSessionTrackerTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/pm/InstallSessionTrackerTest.kt
@@ -26,7 +26,6 @@
 import androidx.test.filters.SdkSuppress
 import androidx.test.filters.SmallTest
 import com.android.launcher3.Flags.FLAG_ENABLE_SUPPORT_FOR_ARCHIVING
-import com.android.launcher3.model.ModelTestRule
 import com.android.launcher3.util.Executors.MODEL_EXECUTOR
 import com.android.launcher3.util.LauncherModelHelper
 import com.android.launcher3.util.PackageUserKey
@@ -45,9 +44,7 @@
 @SmallTest
 @RunWith(AndroidJUnit4::class)
 class InstallSessionTrackerTest {
-    @get:Rule(order = 0) val setFlagsRule = SetFlagsRule()
-
-    @get:Rule(order = 1) val modelTestRule = ModelTestRule()
+    @get:Rule val setFlagsRule = SetFlagsRule()
 
     private val mockInstallSessionHelper: InstallSessionHelper = mock()
     private val mockCallback: InstallSessionTracker.Callback = mock()
@@ -67,7 +64,7 @@
                 mockInstallSessionHelper,
                 mockCallback,
                 mockPackageInstaller,
-                launcherApps
+                launcherApps,
             )
     }
 
diff --git a/tests/multivalentTests/src/com/android/launcher3/pm/UserCacheTest.kt b/tests/multivalentTests/src/com/android/launcher3/pm/UserCacheTest.kt
index 482dced..5f08c31 100644
--- a/tests/multivalentTests/src/com/android/launcher3/pm/UserCacheTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/pm/UserCacheTest.kt
@@ -20,7 +20,6 @@
 import android.os.UserHandle
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.platform.app.InstrumentationRegistry
-import com.android.launcher3.model.ModelTestRule
 import com.android.launcher3.util.Executors.MODEL_EXECUTOR
 import com.android.launcher3.util.LauncherModelHelper
 import com.android.launcher3.util.TestUtil
@@ -28,15 +27,12 @@
 import com.google.common.truth.Truth.assertThat
 import org.junit.After
 import org.junit.Before
-import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
 
 @RunWith(AndroidJUnit4::class)
 class UserCacheTest {
 
-    @get:Rule val modelTestRule = ModelTestRule()
-
     private val launcherModelHelper = LauncherModelHelper()
     private val sandboxContext = launcherModelHelper.sandboxContext
     private lateinit var userCache: UserCache
diff --git a/tests/multivalentTests/src/com/android/launcher3/util/LauncherModelHelper.java b/tests/multivalentTests/src/com/android/launcher3/util/LauncherModelHelper.java
index 748d376..09b9a3b 100644
--- a/tests/multivalentTests/src/com/android/launcher3/util/LauncherModelHelper.java
+++ b/tests/multivalentTests/src/com/android/launcher3/util/LauncherModelHelper.java
@@ -31,6 +31,7 @@
 
 import android.content.ContentProvider;
 import android.content.ContentResolver;
+import android.content.Context;
 import android.content.pm.PackageInstaller;
 import android.content.pm.PackageInstaller.SessionParams;
 import android.content.pm.PackageManager;
@@ -250,15 +251,16 @@
         private final File mDbDir;
 
         public SandboxModelContext() {
-            super(ApplicationProvider.getApplicationContext());
+            this(ApplicationProvider.getApplicationContext());
+        }
+
+        public SandboxModelContext(Context context) {
+            super(context);
 
             // System settings cache content provider. Ensure that they are statically initialized
-            Settings.Secure.getString(
-                    ApplicationProvider.getApplicationContext().getContentResolver(), "test");
-            Settings.System.getString(
-                    ApplicationProvider.getApplicationContext().getContentResolver(), "test");
-            Settings.Global.getString(
-                    ApplicationProvider.getApplicationContext().getContentResolver(), "test");
+            Settings.Secure.getString(context.getContentResolver(), "test");
+            Settings.System.getString(context.getContentResolver(), "test");
+            Settings.Global.getString(context.getContentResolver(), "test");
 
             mPm = spy(getBaseContext().getPackageManager());
             mDbDir = new File(getCacheDir(), UUID.randomUUID().toString());
diff --git a/tests/multivalentTests/src/com/android/launcher3/util/SandboxApplication.kt b/tests/multivalentTests/src/com/android/launcher3/util/SandboxApplication.kt
new file mode 100644
index 0000000..4f9b8c7
--- /dev/null
+++ b/tests/multivalentTests/src/com/android/launcher3/util/SandboxApplication.kt
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2024 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.content.Context
+import android.content.ContextParams
+import android.content.ContextWrapper
+import android.content.pm.ApplicationInfo
+import android.content.res.Configuration
+import android.os.Bundle
+import android.os.IBinder
+import android.os.UserHandle
+import android.view.Display
+import androidx.test.core.app.ApplicationProvider
+import com.android.launcher3.util.LauncherModelHelper.SandboxModelContext
+import com.android.launcher3.util.MainThreadInitializedObject.ObjectSandbox
+import org.junit.Rule
+import org.junit.rules.ExternalResource
+import org.junit.rules.TestRule
+import org.junit.runner.Description
+import org.junit.runners.model.Statement
+
+/**
+ * Sandbox application where created [Context] instances are still sandboxed within it.
+ *
+ * Tests can declare this application as a [Rule], so that it is set up and destroyed automatically.
+ * Alternatively, they can call [init] and [onDestroy] directly. Either way, these need to be called
+ * for it to work and avoid leaks from created singletons.
+ *
+ * The create [Context] APIs construct a `ContextImpl`, which resets the application to the true
+ * application, thus leaving the sandbox. This implementation wraps the created contexts to
+ * propagate this application (see [SandboxApplicationWrapper]).
+ */
+class SandboxApplication private constructor(private val base: SandboxApplicationWrapper) :
+    SandboxModelContext(base), TestRule {
+
+    constructor(
+        base: Context = ApplicationProvider.getApplicationContext()
+    ) : this(SandboxApplicationWrapper(base))
+
+    /**
+     * Initializes the sandbox application propagation logic.
+     *
+     * This function either needs to be called manually or automatically through using [Rule].
+     */
+    fun init() {
+        base.app = this@SandboxApplication
+    }
+
+    /** Returns `this` if [init] was called, otherwise crashes the test. */
+    override fun getApplicationContext(): Context = base.applicationContext
+
+    override fun shouldCleanUpOnDestroy(): Boolean {
+        // Defer to the true application to decide whether to clean up. For instance, we do not want
+        // to cleanup under Robolectric.
+        val app = ApplicationProvider.getApplicationContext<Context>()
+        return if (app is ObjectSandbox) app.shouldCleanUpOnDestroy() else true
+    }
+
+    override fun apply(statement: Statement, description: Description): Statement {
+        return object : ExternalResource() {
+                override fun before() {
+                    base.app = this@SandboxApplication
+                }
+
+                override fun after() = onDestroy()
+            }
+            .apply(statement, description)
+    }
+}
+
+private class SandboxApplicationWrapper(base: Context, var app: Context? = null) :
+    ContextWrapper(base) {
+
+    override fun getApplicationContext(): Context {
+        return checkNotNull(app) { "SandboxApplication accessed before #init() was called." }
+    }
+
+    override fun createPackageContext(packageName: String?, flags: Int): Context {
+        return SandboxApplicationWrapper(super.createPackageContext(packageName, flags), app)
+    }
+
+    override fun createPackageContextAsUser(
+        packageName: String,
+        flags: Int,
+        user: UserHandle,
+    ): Context {
+        return SandboxApplicationWrapper(
+            super.createPackageContextAsUser(packageName, flags, user),
+            app,
+        )
+    }
+
+    override fun createContextAsUser(user: UserHandle, flags: Int): Context {
+        return SandboxApplicationWrapper(super.createContextAsUser(user, flags), app)
+    }
+
+    override fun createApplicationContext(application: ApplicationInfo?, flags: Int): Context {
+        return SandboxApplicationWrapper(super.createApplicationContext(application, flags), app)
+    }
+
+    override fun createContextForSdkInSandbox(sdkInfo: ApplicationInfo, flags: Int): Context {
+        return SandboxApplicationWrapper(super.createContextForSdkInSandbox(sdkInfo, flags), app)
+    }
+
+    override fun createContextForSplit(splitName: String?): Context {
+        return SandboxApplicationWrapper(super.createContextForSplit(splitName), app)
+    }
+
+    override fun createConfigurationContext(overrideConfiguration: Configuration): Context {
+        return SandboxApplicationWrapper(
+            super.createConfigurationContext(overrideConfiguration),
+            app,
+        )
+    }
+
+    override fun createDisplayContext(display: Display): Context {
+        return SandboxApplicationWrapper(super.createDisplayContext(display), app)
+    }
+
+    override fun createDeviceContext(deviceId: Int): Context {
+        return SandboxApplicationWrapper(super.createDeviceContext(deviceId), app)
+    }
+
+    override fun createWindowContext(type: Int, options: Bundle?): Context {
+        return SandboxApplicationWrapper(super.createWindowContext(type, options), app)
+    }
+
+    override fun createWindowContext(display: Display, type: Int, options: Bundle?): Context {
+        return SandboxApplicationWrapper(super.createWindowContext(display, type, options), app)
+    }
+
+    override fun createContext(contextParams: ContextParams): Context {
+        return SandboxApplicationWrapper(super.createContext(contextParams), app)
+    }
+
+    override fun createAttributionContext(attributionTag: String?): Context {
+        return SandboxApplicationWrapper(super.createAttributionContext(attributionTag), app)
+    }
+
+    override fun createCredentialProtectedStorageContext(): Context {
+        return SandboxApplicationWrapper(super.createCredentialProtectedStorageContext(), app)
+    }
+
+    override fun createDeviceProtectedStorageContext(): Context {
+        return SandboxApplicationWrapper(super.createDeviceProtectedStorageContext(), app)
+    }
+
+    override fun createTokenContext(token: IBinder, display: Display): Context {
+        return SandboxApplicationWrapper(super.createTokenContext(token, display), app)
+    }
+}
diff --git a/tests/multivalentTests/src/com/android/launcher3/util/SandboxApplicationTest.kt b/tests/multivalentTests/src/com/android/launcher3/util/SandboxApplicationTest.kt
new file mode 100644
index 0000000..d87a406
--- /dev/null
+++ b/tests/multivalentTests/src/com/android/launcher3/util/SandboxApplicationTest.kt
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2024 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.content.Context
+import android.hardware.display.DisplayManager
+import android.view.Display
+import android.view.Display.DEFAULT_DISPLAY
+import android.view.WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY
+import com.google.common.truth.Truth.assertThat
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(LauncherMultivalentJUnit::class)
+class SandboxApplicationTest {
+    @get:Rule val app = SandboxApplication()
+
+    private val display: Display
+        get() {
+            return checkNotNull(app.getSystemService(DisplayManager::class.java))
+                .getDisplay(DEFAULT_DISPLAY)
+        }
+
+    @Test
+    fun testCreateDisplayContext_isSandboxed() {
+        val displayContext = app.createDisplayContext(display)
+        assertThat(displayContext.applicationContext).isEqualTo(app)
+    }
+
+    @Test
+    fun testCreateWindowContext_fromSandboxedDisplayContext_isSandboxed() {
+        val displayContext = app.createDisplayContext(display)
+        val nestedContext = displayContext.createWindowContext(TYPE_APPLICATION_OVERLAY, null)
+        assertThat(nestedContext.applicationContext).isEqualTo(app)
+    }
+
+    @Test(expected = IllegalStateException::class)
+    fun testGetApplicationContext_beforeManualInit_throwsException() {
+        val manualApp = SandboxApplication()
+        assertThat(manualApp.applicationContext).isEqualTo(manualApp)
+    }
+
+    @Test
+    fun testGetApplicationContext_afterManualInit_isApplication() {
+        SandboxApplication().run {
+            init()
+            assertThat(applicationContext).isEqualTo(this)
+            onDestroy()
+        }
+    }
+
+    @Test
+    fun testGetObject_objectCreatesDisplayContext_isSandboxed() {
+        class TestSingleton(context: Context) : SafeCloseable {
+            override fun close() = Unit
+
+            val displayContext = context.createDisplayContext(display)
+        }
+
+        val displayContext = MainThreadInitializedObject { TestSingleton(it) }[app].displayContext
+        assertThat(displayContext.applicationContext).isEqualTo(app)
+    }
+}
diff --git a/tests/multivalentTests/src/com/android/launcher3/util/TestUtil.java b/tests/multivalentTests/src/com/android/launcher3/util/TestUtil.java
index 64035da..ce682f1 100644
--- a/tests/multivalentTests/src/com/android/launcher3/util/TestUtil.java
+++ b/tests/multivalentTests/src/com/android/launcher3/util/TestUtil.java
@@ -15,14 +15,12 @@
  */
 package com.android.launcher3.util;
 
-import static android.util.Base64.NO_PADDING;
-import static android.util.Base64.NO_WRAP;
-
 import static androidx.test.platform.app.InstrumentationRegistry.getInstrumentation;
 
-import static com.android.launcher3.LauncherSettings.Settings.LAYOUT_DIGEST_KEY;
 import static com.android.launcher3.LauncherSettings.Settings.LAYOUT_DIGEST_LABEL;
 import static com.android.launcher3.LauncherSettings.Settings.LAYOUT_DIGEST_TAG;
+import static com.android.launcher3.LauncherSettings.Settings.LAYOUT_PROVIDER_KEY;
+import static com.android.launcher3.LauncherSettings.Settings.createBlobProviderKey;
 
 import static org.junit.Assert.assertTrue;
 
@@ -42,7 +40,6 @@
 import android.os.UserHandle;
 import android.provider.Settings;
 import android.system.OsConstants;
-import android.util.Base64;
 import android.util.Log;
 
 import androidx.test.uiautomator.UiDevice;
@@ -169,13 +166,12 @@
             session.commit(AsyncTask.THREAD_POOL_EXECUTOR, i -> wait.countDown());
         }
 
-        String key = Base64.encodeToString(digest, NO_WRAP | NO_PADDING);
-
         grantWriteSecurePermission();
-        Settings.Secure.putString(context.getContentResolver(), LAYOUT_DIGEST_KEY, key);
+        Settings.Secure.putString(
+                context.getContentResolver(), LAYOUT_PROVIDER_KEY, createBlobProviderKey(digest));
         wait.await();
         return () ->
-            Settings.Secure.putString(context.getContentResolver(), LAYOUT_DIGEST_KEY, null);
+            Settings.Secure.putString(context.getContentResolver(), LAYOUT_PROVIDER_KEY, null);
     }
 
     /**
diff --git a/tests/src/com/android/launcher3/model/PackageUpdatedTaskTest.kt b/tests/src/com/android/launcher3/model/PackageUpdatedTaskTest.kt
index 05f626d..d9af07a 100644
--- a/tests/src/com/android/launcher3/model/PackageUpdatedTaskTest.kt
+++ b/tests/src/com/android/launcher3/model/PackageUpdatedTaskTest.kt
@@ -58,8 +58,7 @@
 @RunWith(AndroidJUnit4::class)
 class PackageUpdatedTaskTest {
 
-    @get:Rule(order = 0) val setFlagsRule = SetFlagsRule()
-    @get:Rule(order = 1) val modelTestRule = ModelTestRule()
+    @get:Rule val setFlagsRule = SetFlagsRule()
 
     private val mUser = UserHandle(0)
     private val mDataModel: BgDataModel = BgDataModel()
diff --git a/tests/src/com/android/launcher3/util/RoboApiWrapper.kt b/tests/src/com/android/launcher3/util/RoboApiWrapper.kt
index 583652d..7f74e56 100644
--- a/tests/src/com/android/launcher3/util/RoboApiWrapper.kt
+++ b/tests/src/com/android/launcher3/util/RoboApiWrapper.kt
@@ -24,12 +24,10 @@
 
 object RoboApiWrapper {
 
-    fun initialize() {}
-
     fun registerInputStream(
         contentResolver: ContentResolver,
         uri: Uri,
-        inputStreamSupplier: Supplier<InputStream>
+        inputStreamSupplier: Supplier<InputStream>,
     ) {}
 
     fun waitForLooperSync(looper: Looper) {}
diff --git a/tests/src_deviceless/com/android/launcher3/util/RoboApiWrapper.kt b/tests/src_deviceless/com/android/launcher3/util/RoboApiWrapper.kt
index 9232268..a2b8303 100644
--- a/tests/src_deviceless/com/android/launcher3/util/RoboApiWrapper.kt
+++ b/tests/src_deviceless/com/android/launcher3/util/RoboApiWrapper.kt
@@ -16,70 +16,19 @@
 
 package com.android.launcher3.util
 
-import android.content.ComponentName
 import android.content.ContentResolver
-import android.content.Intent
-import android.content.IntentFilter
-import android.content.pm.ApplicationInfo
-import android.content.pm.LauncherActivityInfo
-import android.content.pm.LauncherApps
 import android.net.Uri
 import android.os.Looper
-import android.os.Process
-import androidx.test.platform.app.InstrumentationRegistry
 import java.io.InputStream
 import java.util.function.Supplier
-import org.mockito.Mockito
-import org.mockito.kotlin.whenever
-import org.robolectric.RuntimeEnvironment
 import org.robolectric.Shadows
 
 object RoboApiWrapper {
 
-    fun initialize() {
-        Shadows.shadowOf(
-                RuntimeEnvironment.getApplication().getSystemService(LauncherApps::class.java)
-            )
-            .addEnabledPackage(
-                Process.myUserHandle(),
-                InstrumentationRegistry.getInstrumentation().context.packageName
-            )
-        LauncherModelHelper.ACTIVITY_LIST.forEach {
-            installApp(ComponentName(InstrumentationRegistry.getInstrumentation().context, it))
-        }
-    }
-
-    private fun installApp(componentName: ComponentName) {
-        val app = RuntimeEnvironment.getApplication()
-        val user = Process.myUserHandle()
-
-        val pm = Shadows.shadowOf(app.packageManager)
-        val ai = pm.addActivityIfNotPresent(componentName)
-        pm.addIntentFilterForActivity(
-            componentName,
-            IntentFilter(Intent.ACTION_MAIN).apply { addCategory(Intent.CATEGORY_LAUNCHER) }
-        )
-
-        val li = Mockito.mock(LauncherActivityInfo::class.java)
-        val appInfo = ApplicationInfo().apply { flags = 0 }
-        Mockito.doReturn(ai).whenever(li).activityInfo
-        Mockito.doReturn(appInfo).whenever(li).applicationInfo
-        Mockito.doReturn(user).whenever(li).user
-        Mockito.doReturn(1f).whenever(li).loadingProgress
-        Mockito.doReturn(componentName).whenever(li).componentName
-
-        Shadows.shadowOf(app.getSystemService(LauncherApps::class.java)).apply {
-            addActivity(user, li)
-            addEnabledPackage(user, componentName.packageName)
-            setActivityEnabled(user, componentName)
-            addApplicationInfo(user, componentName.packageName, ai.applicationInfo)
-        }
-    }
-
     fun registerInputStream(
         contentResolver: ContentResolver,
         uri: Uri,
-        inputStreamSupplier: Supplier<InputStream>
+        inputStreamSupplier: Supplier<InputStream>,
     ) {
         Shadows.shadowOf(contentResolver).registerInputStreamSupplier(uri, inputStreamSupplier)
     }