diff --git a/quickstep/src/com/android/launcher3/model/AppEventProducer.java b/quickstep/src/com/android/launcher3/model/AppEventProducer.java
index 5c66944..9f3be69 100644
--- a/quickstep/src/com/android/launcher3/model/AppEventProducer.java
+++ b/quickstep/src/com/android/launcher3/model/AppEventProducer.java
@@ -62,6 +62,7 @@
 import androidx.annotation.Nullable;
 import androidx.annotation.WorkerThread;
 
+import com.android.launcher3.Utilities;
 import com.android.launcher3.logger.LauncherAtom;
 import com.android.launcher3.logger.LauncherAtom.ContainerInfo;
 import com.android.launcher3.logger.LauncherAtom.FolderContainer;
@@ -116,7 +117,8 @@
     @AnyThread
     private void sendEvent(AppTarget target, LauncherAtom.ItemInfo locationInfo, int eventId,
             int targetPredictor) {
-        if (target != null) {
+        // TODO: remove the running test check when b/231648228 is fixed.
+        if (target != null && !Utilities.IS_RUNNING_IN_TEST_HARNESS) {
             AppTargetEvent event = new AppTargetEvent.Builder(target, eventId)
                     .setLaunchLocation(getContainer(locationInfo))
                     .build();
diff --git a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsSlideInView.java b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsSlideInView.java
index 2d7ce32..c4837a0 100644
--- a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsSlideInView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsSlideInView.java
@@ -62,7 +62,7 @@
                     PropertyValuesHolder.ofFloat(TRANSLATION_SHIFT, TRANSLATION_SHIFT_OPENED));
             mOpenCloseAnimator.setInterpolator(AGGRESSIVE_EASE);
             mOpenCloseAnimator.setDuration(
-                    ALL_APPS.getTransitionDuration(mContext, true /* isToState */)).start();
+                    ALL_APPS.getTransitionDuration(mActivityContext, true /* isToState */)).start();
         } else {
             mTranslationShift = TRANSLATION_SHIFT_OPENED;
         }
@@ -81,7 +81,8 @@
     @Override
     protected void handleClose(boolean animate) {
         Optional.ofNullable(mOnCloseBeginListener).ifPresent(OnCloseListener::onSlideInViewClosed);
-        handleClose(animate, ALL_APPS.getTransitionDuration(mContext, false /* isToState */));
+        handleClose(animate,
+                ALL_APPS.getTransitionDuration(mActivityContext, false /* isToState */));
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java b/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java
index 621dfb8..7b01670 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java
@@ -20,6 +20,7 @@
 
 import android.content.Context;
 
+import com.android.launcher3.DeviceProfile.DeviceProfileListenable;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
@@ -38,8 +39,11 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context, boolean isToState) {
-        return isToState ? 500 : 300;
+    public <DEVICE_PROFILE_CONTEXT extends Context & DeviceProfileListenable>
+    int getTransitionDuration(DEVICE_PROFILE_CONTEXT context, boolean isToState) {
+        return !context.getDeviceProfile().isTablet && isToState
+                ? 600
+                : isToState ? 500 : 300;
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index 5acce89..13389c0 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -22,6 +22,7 @@
 
 import static com.android.launcher3.BaseActivity.INVISIBLE_BY_STATE_HANDLER;
 import static com.android.launcher3.BaseActivity.STATE_HANDLER_INVISIBILITY_FLAGS;
+import static com.android.launcher3.PagedView.INVALID_PAGE;
 import static com.android.launcher3.anim.Interpolators.ACCEL_DEACCEL;
 import static com.android.launcher3.anim.Interpolators.DEACCEL;
 import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
@@ -66,6 +67,7 @@
 import android.os.Build;
 import android.os.IBinder;
 import android.os.SystemClock;
+import android.util.Log;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.View.OnApplyWindowInsetsListener;
@@ -926,7 +928,13 @@
             mLogDirectionUpOrLeft = velocity.x < 0;
         }
         mDownPos = downPos;
-        handleNormalGestureEnd(endVelocity, isFling, velocity, false /* isCancel */);
+        Runnable handleNormalGestureEndCallback = () ->
+                handleNormalGestureEnd(endVelocity, isFling, velocity, /* isCancel= */ false);
+        if (mRecentsView != null) {
+            mRecentsView.runOnPageScrollsInitialized(handleNormalGestureEndCallback);
+        } else {
+            handleNormalGestureEndCallback.run();
+        }
     }
 
     private void endRunningWindowAnim(boolean cancel) {
@@ -1130,6 +1138,13 @@
         } else if (endTarget == RECENTS) {
             if (mRecentsView != null) {
                 int nearestPage = mRecentsView.getDestinationPage();
+                if (nearestPage == INVALID_PAGE) {
+                    // Allow the snap to invalid page to catch future error cases.
+                    Log.e(TAG,
+                            "RecentsView destination page is invalid",
+                            new IllegalStateException());
+                }
+
                 boolean isScrolling = false;
                 if (mRecentsView.getNextPage() != nearestPage) {
                     // We shouldn't really scroll to the next page when swiping up to recents.
diff --git a/quickstep/src/com/android/quickstep/BaseActivityInterface.java b/quickstep/src/com/android/quickstep/BaseActivityInterface.java
index 48127c0..6745246 100644
--- a/quickstep/src/com/android/quickstep/BaseActivityInterface.java
+++ b/quickstep/src/com/android/quickstep/BaseActivityInterface.java
@@ -84,6 +84,8 @@
 
     private STATE_TYPE mTargetState;
 
+    @Nullable private Runnable mOnInitBackgroundStateUICallback = null;
+
     protected BaseActivityInterface(boolean rotationSupportedByActivity,
             STATE_TYPE overviewState, STATE_TYPE backgroundState) {
         this.rotationSupportedByActivity = rotationSupportedByActivity;
@@ -408,6 +410,21 @@
         return null;
     }
 
+    protected void runOnInitBackgroundStateUI(Runnable callback) {
+        mOnInitBackgroundStateUICallback = callback;
+        ACTIVITY_TYPE activity = getCreatedActivity();
+        if (activity != null && activity.getStateManager().getState() == mBackgroundState) {
+            onInitBackgroundStateUI();
+        }
+    }
+
+    private void onInitBackgroundStateUI() {
+        if (mOnInitBackgroundStateUICallback != null) {
+            mOnInitBackgroundStateUICallback.run();
+            mOnInitBackgroundStateUICallback = null;
+        }
+    }
+
     public interface AnimationFactory {
 
         void createActivityInterface(long transitionLength);
@@ -447,13 +464,14 @@
             mStartState = mActivity.getStateManager().getState();
         }
 
-        protected ACTIVITY_TYPE initUI() {
+        protected ACTIVITY_TYPE initBackgroundStateUI() {
             STATE_TYPE resetState = mStartState;
             if (mStartState.shouldDisableRestore()) {
                 resetState = mActivity.getStateManager().getRestState();
             }
             mActivity.getStateManager().setRestState(resetState);
             mActivity.getStateManager().goToState(mBackgroundState, false);
+            onInitBackgroundStateUI();
             return mActivity;
         }
 
diff --git a/quickstep/src/com/android/quickstep/FallbackActivityInterface.java b/quickstep/src/com/android/quickstep/FallbackActivityInterface.java
index 7feec2c..ba61574 100644
--- a/quickstep/src/com/android/quickstep/FallbackActivityInterface.java
+++ b/quickstep/src/com/android/quickstep/FallbackActivityInterface.java
@@ -89,7 +89,7 @@
             boolean activityVisible, Consumer<AnimatorControllerWithResistance> callback) {
         notifyRecentsOfOrientation(deviceState.getRotationTouchHelper());
         DefaultAnimationFactory factory = new DefaultAnimationFactory(callback);
-        factory.initUI();
+        factory.initBackgroundStateUI();
         return factory;
     }
 
diff --git a/quickstep/src/com/android/quickstep/LauncherActivityInterface.java b/quickstep/src/com/android/quickstep/LauncherActivityInterface.java
index 10a3a2e..c13b95f 100644
--- a/quickstep/src/com/android/quickstep/LauncherActivityInterface.java
+++ b/quickstep/src/com/android/quickstep/LauncherActivityInterface.java
@@ -135,7 +135,7 @@
             }
         };
 
-        BaseQuickstepLauncher launcher = factory.initUI();
+        BaseQuickstepLauncher launcher = factory.initBackgroundStateUI();
         // Since all apps is not visible, we can safely reset the scroll position.
         // This ensures then the next swipe up to all-apps starts from scroll 0.
         launcher.getAppsView().reset(false /* animate */);
diff --git a/quickstep/src/com/android/quickstep/OverviewCommandHelper.java b/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
index 42f9eb6..dffdc5a 100644
--- a/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
+++ b/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
@@ -217,7 +217,8 @@
             @Override
             public void onRecentsAnimationStart(RecentsAnimationController controller,
                     RecentsAnimationTargets targets) {
-                interactionHandler.onGestureEnded(0, new PointF(), new PointF());
+                activityInterface.runOnInitBackgroundStateUI(() ->
+                        interactionHandler.onGestureEnded(0, new PointF(), new PointF()));
                 cmd.removeListener(this);
             }
 
diff --git a/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java b/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
index 10c56c9..85ef6cb 100644
--- a/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
+++ b/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
@@ -130,7 +130,7 @@
         if (IS_VERBOSE) {
             Log.d(TAG, String.format("\nwriteSnapshot(%d):\n%s", instanceId.getId(), info));
         }
-        if (!Utilities.ATLEAST_R) {
+        if (!Utilities.ATLEAST_R || Utilities.IS_RUNNING_IN_TEST_HARNESS) {
             return;
         }
         SysUiStatsLog.write(SysUiStatsLog.LAUNCHER_SNAPSHOT,
@@ -415,6 +415,10 @@
                 consumer.consume(event, atomInfo);
             }
 
+            // TODO: remove this when b/231648228 is fixed.
+            if (Utilities.IS_RUNNING_IN_TEST_HARNESS) {
+                return;
+            }
             SysUiStatsLog.write(
                     SysUiStatsLog.LAUNCHER_EVENT,
                     SysUiStatsLog.LAUNCHER_UICHANGED__ACTION__DEFAULT_ACTION /* deprecated */,
@@ -510,6 +514,9 @@
     }
 
     private static int getCardinality(LauncherAtom.ItemInfo info) {
+        if (Utilities.IS_RUNNING_IN_TEST_HARNESS) {
+            return 0;
+        }
         switch (info.getContainerInfo().getContainerCase()) {
             case PREDICTED_HOTSEAT_CONTAINER:
                 return info.getContainerInfo().getPredictedHotseatContainer().getCardinality();
@@ -625,6 +632,9 @@
     }
 
     private static int getHierarchy(LauncherAtom.ItemInfo info) {
+        if (Utilities.IS_RUNNING_IN_TEST_HARNESS) {
+            return 0;
+        }
         if (info.getContainerInfo().getContainerCase() == FOLDER) {
             return info.getContainerInfo().getFolder().getParentContainerCase().getNumber()
                     + FOLDER_HIERARCHY_OFFSET;
@@ -665,6 +675,9 @@
     }
 
     private static int getSearchAttributes(LauncherAtom.ItemInfo info) {
+        if (Utilities.IS_RUNNING_IN_TEST_HARNESS) {
+            return 0;
+        }
         ContainerInfo containerInfo = info.getContainerInfo();
         if (containerInfo.getContainerCase() == EXTENDED_CONTAINERS
                 && containerInfo.getExtendedContainers().getContainerCase()
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 72f4221..b634518 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -946,7 +946,7 @@
                 mHasVisibleTaskData.delete(i);
             }
             if (child instanceof GroupedTaskView) {
-                mGroupedTaskViewPool.recycle((GroupedTaskView)taskView);
+                mGroupedTaskViewPool.recycle((GroupedTaskView) taskView);
             } else {
                 mTaskViewPool.recycle(taskView);
             }
@@ -1855,17 +1855,18 @@
         if (!mActivity.getDeviceProfile().isTablet) {
             return super.getDestinationPage(scaledScroll);
         }
-
-        final int childCount = getChildCount();
-        if (mPageScrolls == null || childCount != mPageScrolls.length) {
-            return -1;
+        if (!pageScrollsInitialized()) {
+            Log.e(TAG,
+                    "Cannot get destination page: RecentsView not properly initialized",
+                    new IllegalStateException());
+            return INVALID_PAGE;
         }
 
         // When in tablet with variable task width, return the page which scroll is closest to
         // screenStart instead of page nearest to center of screen.
         int minDistanceFromScreenStart = Integer.MAX_VALUE;
-        int minDistanceFromScreenStartIndex = -1;
-        for (int i = 0; i < childCount; ++i) {
+        int minDistanceFromScreenStartIndex = INVALID_PAGE;
+        for (int i = 0; i < getChildCount(); ++i) {
             int distanceFromScreenStart = Math.abs(mPageScrolls[i] - scaledScroll);
             if (distanceFromScreenStart < minDistanceFromScreenStart) {
                 minDistanceFromScreenStart = distanceFromScreenStart;
@@ -4051,7 +4052,7 @@
         // TODO(194414938) starting bounds seem slightly off, investigate
         Rect firstTaskStartingBounds = new Rect();
         Rect firstTaskEndingBounds = mTempRect;
-        int duration = mActivity.getStateManager().getState().getTransitionDuration(getContext(),
+        int duration = mActivity.getStateManager().getState().getTransitionDuration(mActivity,
                 false /* isToState */);
         PendingAnimation pendingAnimation = new PendingAnimation(duration);
 
diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
index 4d38822..4bf247c 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
@@ -52,6 +52,8 @@
 public class TaplTestsQuickstep extends AbstractQuickStepTest {
 
     private static final String APP_NAME = "LauncherTestApp";
+    private static final String CALCULATOR_APP_PACKAGE =
+            resolveSystemApp(Intent.CATEGORY_APP_CALCULATOR);
 
     @Before
     public void setUp() throws Exception {
@@ -73,7 +75,7 @@
 
     public static void startTestApps() throws Exception {
         startAppFast(getAppPackageName());
-        startAppFast(resolveSystemApp(Intent.CATEGORY_APP_CALCULATOR));
+        startAppFast(CALCULATOR_APP_PACKAGE);
         startTestActivity(2);
     }
 
@@ -207,7 +209,7 @@
     @NavigationModeSwitch
     @PortraitLandscape
     public void testBackground() throws Exception {
-        startAppFast(resolveSystemApp(Intent.CATEGORY_APP_CALCULATOR));
+        startAppFast(CALCULATOR_APP_PACKAGE);
         final LaunchedAppState launchedAppState = getAndAssertLaunchedApp();
 
         assertNotNull("Background.switchToOverview() returned null",
@@ -302,7 +304,7 @@
         mLauncher.getWorkspace();
         waitForState("Launcher internal state didn't switch to Home", () -> LauncherState.NORMAL);
 
-        startAppFast(resolveSystemApp(Intent.CATEGORY_APP_CALCULATOR));
+        startAppFast(CALCULATOR_APP_PACKAGE);
         mLauncher.pressBack();
         mLauncher.getWorkspace();
         waitForState("Launcher internal state didn't switch to Home", () -> LauncherState.NORMAL);
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 2ad1d47..ad87451 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -1279,13 +1279,16 @@
      * @param info The data structure describing the shortcut.
      */
     View createShortcut(WorkspaceItemInfo info) {
-        return createShortcut((ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()), info);
+        // This can be called before PagedView#pageScrollsInitialized returns true, so use the
+        // first page, which we always assume to be present.
+        return createShortcut((ViewGroup) mWorkspace.getChildAt(0), info);
     }
 
     /**
      * Creates a view representing a shortcut inflated from the specified resource.
      *
-     * @param parent The group the shortcut belongs to.
+     * @param parent The group the shortcut belongs to. This is not necessarily the group where
+     *               the shortcut should be added.
      * @param info   The data structure describing the shortcut.
      * @return A View inflated from layoutResId.
      */
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index 0a1d25c..95a8a2a 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -129,7 +129,10 @@
     private boolean mAllowEasyFling;
     protected PagedOrientationHandler mOrientationHandler = PagedOrientationHandler.PORTRAIT;
 
-    protected int[] mPageScrolls;
+    private final ArrayList<Runnable> mOnPageScrollsInitializedCallbacks = new ArrayList<>();
+
+    // We should always check pageScrollsInitialized() is true when using mPageScrolls.
+    @Nullable protected int[] mPageScrolls = null;
     private boolean mIsBeingDragged;
 
     // The amount of movement to begin scrolling
@@ -684,14 +687,37 @@
         setMeasuredDimension(widthSize, heightSize);
     }
 
+    /** Returns true iff this PagedView's scroll amounts are initialized to each page index. */
+    protected boolean pageScrollsInitialized() {
+        return mPageScrolls != null && mPageScrolls.length == getChildCount();
+    }
+
+    /**
+     * Queues the given callback to be run once {@code mPageScrolls} has been initialized.
+     */
+    public void runOnPageScrollsInitialized(Runnable callback) {
+        mOnPageScrollsInitializedCallbacks.add(callback);
+        if (pageScrollsInitialized()) {
+            onPageScrollsInitialized();
+        }
+    }
+
+    private void onPageScrollsInitialized() {
+        for (Runnable callback : mOnPageScrollsInitializedCallbacks) {
+            callback.run();
+        }
+        mOnPageScrollsInitializedCallbacks.clear();
+    }
+
     @SuppressLint("DrawAllocation")
     @Override
     protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
         mIsLayoutValid = true;
         final int childCount = getChildCount();
+        int[] pageScrolls = mPageScrolls;
         boolean pageScrollChanged = false;
-        if (mPageScrolls == null || childCount != mPageScrolls.length) {
-            mPageScrolls = new int[childCount];
+        if (!pageScrollsInitialized()) {
+            pageScrolls = new int[childCount];
             pageScrollChanged = true;
         }
 
@@ -701,10 +727,8 @@
 
         if (DEBUG) Log.d(TAG, "PagedView.onLayout()");
 
-        boolean isScrollChanged = getPageScrolls(mPageScrolls, true, SIMPLE_SCROLL_LOGIC);
-        if (isScrollChanged) {
-            pageScrollChanged = true;
-        }
+        pageScrollChanged |= getPageScrolls(pageScrolls, true, SIMPLE_SCROLL_LOGIC);
+        mPageScrolls = pageScrolls;
 
         final LayoutTransition transition = getLayoutTransition();
         // If the transition is running defer updating max scroll, as some empty pages could
@@ -738,6 +762,7 @@
         if (mScroller.isFinished() && pageScrollChanged) {
             setCurrentPage(getNextPage());
         }
+        onPageScrollsInitialized();
     }
 
     /**
@@ -849,8 +874,10 @@
     @Override
     public void onViewRemoved(View child) {
         super.onViewRemoved(child);
-        mCurrentPage = validateNewPage(mCurrentPage);
-        mCurrentScrollOverPage = mCurrentPage;
+        runOnPageScrollsInitialized(() -> {
+            mCurrentPage = validateNewPage(mCurrentPage);
+            mCurrentScrollOverPage = mCurrentPage;
+        });
         dispatchPageCountChanged();
     }
 
@@ -1153,7 +1180,7 @@
     }
 
     public int getScrollForPage(int index) {
-        if (mPageScrolls == null || index >= mPageScrolls.length || index < 0) {
+        if (!pageScrollsInitialized() || index >= mPageScrolls.length || index < 0) {
             return 0;
         } else {
             return mPageScrolls[index];
@@ -1163,7 +1190,7 @@
     // While layout transitions are occurring, a child's position may stray from its baseline
     // position. This method returns the magnitude of this stray at any given time.
     public int getLayoutTransitionOffsetForPage(int index) {
-        if (mPageScrolls == null || index >= mPageScrolls.length || index < 0) {
+        if (!pageScrollsInitialized() || index >= mPageScrolls.length || index < 0) {
             return 0;
         } else {
             View child = getChildAt(index);
diff --git a/src/com/android/launcher3/anim/Interpolators.java b/src/com/android/launcher3/anim/Interpolators.java
index 4ff5d5e..f8a2c79 100644
--- a/src/com/android/launcher3/anim/Interpolators.java
+++ b/src/com/android/launcher3/anim/Interpolators.java
@@ -156,14 +156,18 @@
                     String.format("upperBound (%f) must be greater than lowerBound (%f)",
                             upperBound, lowerBound));
         }
-        return t -> clampToProgress(t, lowerBound, upperBound);
+        return t -> clampToProgress(interpolator, t, lowerBound, upperBound);
     }
 
     /**
      * Returns the progress value's progress between the lower and upper bounds. That is, the
      * progress will be 0f from 0f to lowerBound, and reach 1f by upperBound.
+     *
+     * Between lowerBound and upperBound, the progress value will be interpolated using the provided
+     * interpolator.
      */
-    public static float clampToProgress(float progress, float lowerBound, float upperBound) {
+    public static float clampToProgress(
+            Interpolator interpolator, float progress, float lowerBound, float upperBound) {
         if (upperBound < lowerBound) {
             throw new IllegalArgumentException(
                     String.format("upperBound (%f) must be greater than lowerBound (%f)",
@@ -179,7 +183,15 @@
         if (progress > upperBound) {
             return 1;
         }
-        return (progress - lowerBound) / (upperBound - lowerBound);
+        return interpolator.getInterpolation((progress - lowerBound) / (upperBound - lowerBound));
+    }
+
+    /**
+     * Returns the progress value's progress between the lower and upper bounds. That is, the
+     * progress will be 0f from 0f to lowerBound, and reach 1f by upperBound.
+     */
+    public static float clampToProgress(float progress, float lowerBound, float upperBound) {
+        return clampToProgress(Interpolators.LINEAR, progress, lowerBound, upperBound);
     }
 
     /**
diff --git a/src/com/android/launcher3/statemanager/BaseState.java b/src/com/android/launcher3/statemanager/BaseState.java
index 4a68dda..f9a36ad 100644
--- a/src/com/android/launcher3/statemanager/BaseState.java
+++ b/src/com/android/launcher3/statemanager/BaseState.java
@@ -18,6 +18,7 @@
 import android.content.Context;
 
 import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.DeviceProfile.DeviceProfileListenable;
 
 /**
  * Interface representing a state of a StatefulActivity
@@ -36,7 +37,8 @@
     /**
      * @return How long the animation to this state should take (or from this state to NORMAL).
      */
-    int getTransitionDuration(Context context, boolean isToState);
+    <DEVICE_PROFILE_CONTEXT extends Context & DeviceProfileListenable>
+    int getTransitionDuration(DEVICE_PROFILE_CONTEXT context, boolean isToState);
 
     /**
      * Returns the state to go back to from this state
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/states/AllAppsState.java b/src_ui_overrides/com/android/launcher3/uioverrides/states/AllAppsState.java
index 2f8e680..52a6759 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/states/AllAppsState.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/states/AllAppsState.java
@@ -20,6 +20,7 @@
 
 import android.content.Context;
 
+import com.android.launcher3.DeviceProfile.DeviceProfileListenable;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
@@ -39,8 +40,11 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context, boolean isToState) {
-        return isToState ? 500 : 300;
+    public <DEVICE_PROFILE_CONTEXT extends Context & DeviceProfileListenable>
+    int getTransitionDuration(DEVICE_PROFILE_CONTEXT context, boolean isToState) {
+        return !context.getDeviceProfile().isTablet && isToState
+                ? 600
+                : isToState ? 500 : 300;
     }
 
     @Override
diff --git a/tests/tapl/com/android/launcher3/tapl/HomeQsb.java b/tests/tapl/com/android/launcher3/tapl/HomeQsb.java
new file mode 100644
index 0000000..5f92199
--- /dev/null
+++ b/tests/tapl/com/android/launcher3/tapl/HomeQsb.java
@@ -0,0 +1,45 @@
+/*
+ * 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.tapl;
+
+/**
+ * Operations on home screen qsb.
+ */
+public class HomeQsb {
+
+    private final LauncherInstrumentation mLauncher;
+
+    HomeQsb(LauncherInstrumentation launcher) {
+        mLauncher = launcher;
+        mLauncher.waitForLauncherObject("search_container_hotseat");
+    }
+
+    /**
+     * Show search result page from tapping qsb.
+     */
+    public SearchResultFromQsb showSearchResult() {
+        try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(
+                "want to open search result page");
+             LauncherInstrumentation.Closable e = mLauncher.eventsCheck()) {
+            mLauncher.clickLauncherObject(
+                    mLauncher.waitForLauncherObject("search_container_hotseat"));
+            try (LauncherInstrumentation.Closable c2 = mLauncher.addContextLayer(
+                    "clicked qsb to open search result page")) {
+                return new SearchResultFromQsb(mLauncher);
+            }
+        }
+    }
+}
diff --git a/tests/tapl/com/android/launcher3/tapl/Launchable.java b/tests/tapl/com/android/launcher3/tapl/Launchable.java
index 45a0196..39cd4ff 100644
--- a/tests/tapl/com/android/launcher3/tapl/Launchable.java
+++ b/tests/tapl/com/android/launcher3/tapl/Launchable.java
@@ -33,7 +33,7 @@
 /**
  * Ancestor for AppIcon and AppMenuItem.
  */
-abstract class Launchable {
+public abstract class Launchable {
 
     protected static final int DEFAULT_DRAG_STEPS = 10;
 
diff --git a/tests/tapl/com/android/launcher3/tapl/SearchResultFromQsb.java b/tests/tapl/com/android/launcher3/tapl/SearchResultFromQsb.java
new file mode 100644
index 0000000..82652c7
--- /dev/null
+++ b/tests/tapl/com/android/launcher3/tapl/SearchResultFromQsb.java
@@ -0,0 +1,50 @@
+/*
+ * 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.tapl;
+
+import android.widget.TextView;
+
+import androidx.test.uiautomator.By;
+import androidx.test.uiautomator.UiObject2;
+
+/**
+ * Operations on search result page opened from home screen qsb.
+ */
+public class SearchResultFromQsb {
+    // The input resource id in the search box.
+    private static final String INPUT_RES = "input";
+    private final LauncherInstrumentation mLauncher;
+
+    SearchResultFromQsb(LauncherInstrumentation launcher) {
+        mLauncher = launcher;
+        mLauncher.waitForLauncherObject("search_container_all_apps");
+    }
+
+    /** Set the input to the search input edit text and update search results. */
+    public void searchForInput(String input) {
+        try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(
+                "want to search for result with an input");
+             LauncherInstrumentation.Closable e = mLauncher.eventsCheck()) {
+            mLauncher.waitForLauncherObject(INPUT_RES).setText(input);
+        }
+    }
+
+    /** Find the app from search results with app name. */
+    public Launchable findAppIcon(String appName) {
+        UiObject2 icon = mLauncher.waitForLauncherObject(By.clazz(TextView.class).text(appName));
+        return new AllAppsAppIcon(mLauncher, icon);
+    }
+}
diff --git a/tests/tapl/com/android/launcher3/tapl/Workspace.java b/tests/tapl/com/android/launcher3/tapl/Workspace.java
index b0b42ba..954af3d 100644
--- a/tests/tapl/com/android/launcher3/tapl/Workspace.java
+++ b/tests/tapl/com/android/launcher3/tapl/Workspace.java
@@ -112,6 +112,18 @@
     }
 
     /**
+     * Returns the home qsb.
+     *
+     * The qsb must already be visible when calling this method.
+     */
+    public HomeQsb getQsb() {
+        try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(
+                "want to get the home qsb")) {
+            return new HomeQsb(mLauncher);
+        }
+    }
+
+    /**
      * Returns an icon for the app, if currently visible.
      *
      * @param appName name of the app