diff --git a/quickstep/res/values/strings.xml b/quickstep/res/values/strings.xml
index f80deeb..81b0dd2 100644
--- a/quickstep/res/values/strings.xml
+++ b/quickstep/res/values/strings.xml
@@ -109,6 +109,8 @@
     <string name="back_gesture_intro_title">Swipe to go back</string>
     <!-- Introduction subtitle for the Back gesture tutorial. [CHAR LIMIT=200] -->
     <string name="back_gesture_intro_subtitle">To go back to the last screen, swipe from the left or right edge to the middle of the screen.</string>
+    <!-- Introduction subtitle for the Back gesture tutorial that will be spoken by screen readers. [CHAR LIMIT=200] -->
+    <string name="back_gesture_spoken_intro_subtitle">To go back to the last screen, swipe with 2 fingers from the left or right edge to the middle of the screen.</string>
 
     <string name="home_gesture_feedback_swipe_too_far_from_edge">Make sure you swipe up from the bottom edge of the screen.</string>
     <!-- Feedback shown during interactive parts of Home gesture tutorial when the Overview gesture is detected. [CHAR LIMIT=100] -->
@@ -123,6 +125,8 @@
     <string name="home_gesture_intro_title">Swipe to go home</string>
     <!-- Introduction subtitle for the Home gesture tutorial. [CHAR LIMIT=100] -->
     <string name="home_gesture_intro_subtitle">Swipe up from the bottom of your screen. This gesture always takes you to the Home screen.</string>
+    <!-- Introduction subtitle for the Home gesture tutorial that will be spoken by screen readers. [CHAR LIMIT=100] -->
+    <string name="home_gesture_spoken_intro_subtitle">Swipe up with 2 fingers from the bottom of the screen. This gesture always takes you to the Home screen.</string>
 
     <!-- Feedback shown during interactive parts of Overview gesture tutorial when the gesture is started too far from the edge. [CHAR LIMIT=100] -->
     <string name="overview_gesture_feedback_swipe_too_far_from_edge">Make sure you swipe up from the bottom edge of the screen.</string>
@@ -138,6 +142,8 @@
     <string name="overview_gesture_intro_title">Swipe to switch apps</string>
     <!-- Introduction subtitle for the Overview gesture tutorial. [CHAR LIMIT=100] -->
     <string name="overview_gesture_intro_subtitle">To switch between apps, swipe up from the bottom of your screen, hold, then release.</string>
+    <!-- Introduction subtitle for the Overview gesture tutorial that will be spoken by screen readers. [CHAR LIMIT=100] -->
+    <string name="overview_gesture_spoken_intro_subtitle">To switch between apps, swipe up with 2 fingers from the bottom of your screen, hold, then release.</string>
 
     <!-- Title shown during interactive part of Assistant gesture tutorial. [CHAR LIMIT=30] -->
     <string name="assistant_gesture_tutorial_playground_title" translatable="false">Tutorial: Assistant</string>
diff --git a/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java b/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
index 6abcbd5..2239102 100644
--- a/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
@@ -24,6 +24,9 @@
 import static com.android.launcher3.config.FeatureFlags.ENABLE_SPLIT_FROM_WORKSPACE;
 import static com.android.launcher3.model.data.ItemInfo.NO_MATCHING_ID;
 import static com.android.launcher3.popup.QuickstepSystemShortcut.getSplitSelectShortcutByPosition;
+import static com.android.launcher3.taskbar.LauncherTaskbarUIController.ALL_APPS_PAGE_PROGRESS_INDEX;
+import static com.android.launcher3.taskbar.LauncherTaskbarUIController.MINUS_ONE_PAGE_PROGRESS_INDEX;
+import static com.android.launcher3.taskbar.LauncherTaskbarUIController.WIDGETS_PAGE_PROGRESS_INDEX;
 import static com.android.launcher3.util.DisplayController.CHANGE_ACTIVE_SCREEN;
 import static com.android.launcher3.util.DisplayController.CHANGE_NAVIGATION_MODE;
 import static com.android.launcher3.util.DisplayController.NavigationMode.TWO_BUTTONS;
@@ -229,6 +232,28 @@
     public void onScrollChanged(float progress) {
         super.onScrollChanged(progress);
         mDepthController.onOverlayScrollChanged(progress);
+        onTaskbarInAppDisplayProgressUpdate(progress, MINUS_ONE_PAGE_PROGRESS_INDEX);
+    }
+
+    @Override
+    public void onAllAppsTransition(float progress) {
+        super.onAllAppsTransition(progress);
+        onTaskbarInAppDisplayProgressUpdate(progress, ALL_APPS_PAGE_PROGRESS_INDEX);
+    }
+
+    @Override
+    public void onWidgetsTransition(float progress) {
+        super.onWidgetsTransition(progress);
+        onTaskbarInAppDisplayProgressUpdate(progress, WIDGETS_PAGE_PROGRESS_INDEX);
+    }
+
+    private void onTaskbarInAppDisplayProgressUpdate(float progress, int flag) {
+        if (mTaskbarManager == null
+                || mTaskbarManager.getCurrentActivityContext() == null
+                || mTaskbarUIController == null) {
+            return;
+        }
+        mTaskbarUIController.onTaskbarInAppDisplayProgressUpdate(progress, flag);
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/popup/QuickstepSystemShortcut.java b/quickstep/src/com/android/launcher3/popup/QuickstepSystemShortcut.java
index 86310fa..4e59790 100644
--- a/quickstep/src/com/android/launcher3/popup/QuickstepSystemShortcut.java
+++ b/quickstep/src/com/android/launcher3/popup/QuickstepSystemShortcut.java
@@ -70,7 +70,8 @@
 
             RecentsView recentsView = mTarget.getOverviewPanel();
             recentsView.initiateSplitSelect(
-                    new SplitSelectSource(view, new BitmapDrawable(bitmap), intent, mPosition));
+                    new SplitSelectSource(mOriginalView, new BitmapDrawable(bitmap), intent,
+                            mPosition));
         }
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/DesktopTaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/DesktopTaskbarUIController.java
index cf56248..e2359c0 100644
--- a/quickstep/src/com/android/launcher3/taskbar/DesktopTaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/DesktopTaskbarUIController.java
@@ -39,4 +39,10 @@
     protected void onDestroy() {
         mLauncher.getHotseat().setIconsAlpha(1f);
     }
+
+    @Override
+    /** Disable taskbar stashing in desktop environment. */
+    public boolean supportsVisualStashing() {
+        return false;
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
index 793d987..a3e8b5c 100644
--- a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
@@ -22,6 +22,7 @@
 import android.annotation.ColorInt;
 import android.os.RemoteException;
 import android.util.Log;
+import android.util.SparseArray;
 import android.view.MotionEvent;
 import android.view.TaskTransitionSpec;
 import android.view.WindowManagerGlobal;
@@ -43,6 +44,7 @@
 import com.android.quickstep.AnimatedFloat;
 import com.android.quickstep.RecentsAnimationCallbacks;
 
+import java.io.PrintWriter;
 import java.util.Arrays;
 import java.util.Set;
 import java.util.stream.Stream;
@@ -54,10 +56,22 @@
 
     private static final String TAG = "TaskbarUIController";
 
+    public static final int MINUS_ONE_PAGE_PROGRESS_INDEX = 0;
+    public static final int ALL_APPS_PAGE_PROGRESS_INDEX = 1;
+    public static final int WIDGETS_PAGE_PROGRESS_INDEX = 2;
+    public static final int SYSUI_SURFACE_PROGRESS_INDEX = 3;
+
+    private final SparseArray<Float> mTaskbarInAppDisplayProgress = new SparseArray<>(4);
+
     private final BaseQuickstepLauncher mLauncher;
 
     private final DeviceProfile.OnDeviceProfileChangeListener mOnDeviceProfileChangeListener =
-            this::onStashedInAppChanged;
+            dp -> {
+                onStashedInAppChanged(dp);
+                if (mControllers != null && mControllers.taskbarViewController != null) {
+                    mControllers.taskbarViewController.onRotationChanged(dp);
+                }
+            };
 
     // Initialized in init.
     private AnimatedFloat mTaskbarOverrideBackgroundAlpha;
@@ -65,15 +79,6 @@
     private final TaskbarLauncherStateController
             mTaskbarLauncherStateController = new TaskbarLauncherStateController();
 
-    private final DeviceProfile.OnDeviceProfileChangeListener mProfileChangeListener =
-            new DeviceProfile.OnDeviceProfileChangeListener() {
-                @Override
-                public void onDeviceProfileChanged(DeviceProfile dp) {
-                    mControllers.taskbarViewController.onRotationChanged(
-                            mLauncher.getDeviceProfile());
-                }
-            };
-
     public LauncherTaskbarUIController(BaseQuickstepLauncher launcher) {
         mLauncher = launcher;
     }
@@ -93,7 +98,6 @@
 
         onStashedInAppChanged(mLauncher.getDeviceProfile());
         mLauncher.addOnDeviceProfileChangeListener(mOnDeviceProfileChangeListener);
-        mLauncher.addOnDeviceProfileChangeListener(mProfileChangeListener);
     }
 
     @Override
@@ -102,9 +106,8 @@
         onLauncherResumedOrPaused(false);
         mTaskbarLauncherStateController.onDestroy();
 
-        mLauncher.removeOnDeviceProfileChangeListener(mOnDeviceProfileChangeListener);
         mLauncher.setTaskbarUIController(null);
-        mLauncher.removeOnDeviceProfileChangeListener(mProfileChangeListener);
+        mLauncher.removeOnDeviceProfileChangeListener(mOnDeviceProfileChangeListener);
         updateTaskTransitionSpec(true);
     }
 
@@ -271,4 +274,85 @@
         // gesture ends, start drawing taskbar's background again since launcher might stop drawing.
         forceHideBackground(inProgress);
     }
+
+    /**
+     * Animates Taskbar elements during a transition to a Launcher state that should use in-app
+     * layouts.
+     *
+     * @param progress [0, 1]
+     *                 0 => use home layout
+     *                 1 => use in-app layout
+     */
+    public void onTaskbarInAppDisplayProgressUpdate(float progress, int progressIndex) {
+        if (mControllers == null) {
+            // This method can be called before init() is called.
+            return;
+        }
+        mTaskbarInAppDisplayProgress.put(progressIndex, progress);
+        if (!mControllers.taskbarStashController.isInApp()
+                && !mTaskbarLauncherStateController.isAnimatingToLauncher()) {
+            // Only animate the nav buttons while home and not animating home, otherwise let
+            // the TaskbarViewController handle it.
+            mControllers.navbarButtonsViewController
+                    .getTaskbarNavButtonTranslationYForInAppDisplay()
+                    .updateValue(mLauncher.getDeviceProfile().getTaskbarOffsetY()
+                            * getInAppDisplayProgress());
+        }
+    }
+
+    /** Returns true iff any in-app display progress > 0. */
+    public boolean shouldUseInAppLayout() {
+        return getInAppDisplayProgress() > 0;
+    }
+
+    private float getInAppDisplayProgress(int index) {
+        if (!mTaskbarInAppDisplayProgress.contains(index)) {
+            mTaskbarInAppDisplayProgress.put(index, 0f);
+        }
+        return mTaskbarInAppDisplayProgress.get(index);
+    }
+
+    private float getInAppDisplayProgress() {
+        return Stream.of(
+                getInAppDisplayProgress(MINUS_ONE_PAGE_PROGRESS_INDEX),
+                getInAppDisplayProgress(ALL_APPS_PAGE_PROGRESS_INDEX),
+                getInAppDisplayProgress(WIDGETS_PAGE_PROGRESS_INDEX),
+                getInAppDisplayProgress(SYSUI_SURFACE_PROGRESS_INDEX))
+                .max(Float::compareTo)
+                .get();
+    }
+
+    @Override
+    public void dumpLogs(String prefix, PrintWriter pw) {
+        super.dumpLogs(prefix, pw);
+
+        pw.println(String.format(
+                "%s\tmTaskbarOverrideBackgroundAlpha=%.2f",
+                prefix,
+                mTaskbarOverrideBackgroundAlpha.value));
+
+        pw.println(String.format("%s\tTaskbar in-app display progress:", prefix));
+        if (mControllers == null) {
+            pw.println(String.format("%s\t\tMissing mControllers", prefix));
+        } else {
+            pw.println(String.format(
+                    "%s\t\tprogress at MINUS_ONE_PAGE_PROGRESS_INDEX=%.2f",
+                    prefix,
+                    getInAppDisplayProgress(MINUS_ONE_PAGE_PROGRESS_INDEX)));
+            pw.println(String.format(
+                    "%s\t\tprogress at ALL_APPS_PAGE_PROGRESS_INDEX=%.2f",
+                    prefix,
+                    getInAppDisplayProgress(ALL_APPS_PAGE_PROGRESS_INDEX)));
+            pw.println(String.format(
+                    "%s\t\tprogress at WIDGETS_PAGE_PROGRESS_INDEX=%.2f",
+                    prefix,
+                    getInAppDisplayProgress(WIDGETS_PAGE_PROGRESS_INDEX)));
+            pw.println(String.format(
+                    "%s\t\tprogress at SYSUI_SURFACE_PROGRESS_INDEX=%.2f",
+                    prefix,
+                    getInAppDisplayProgress(SYSUI_SURFACE_PROGRESS_INDEX)));
+        }
+
+        mTaskbarLauncherStateController.dumpLogs(prefix + "\t", pw);
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
index f65b907..349dd0a 100644
--- a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
@@ -16,6 +16,7 @@
 package com.android.launcher3.taskbar;
 
 import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_X;
+import static com.android.launcher3.taskbar.LauncherTaskbarUIController.SYSUI_SURFACE_PROGRESS_INDEX;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_A11Y;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_BACK;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_HOME;
@@ -126,11 +127,13 @@
 
     private final AnimatedFloat mTaskbarNavButtonTranslationY = new AnimatedFloat(
             this::updateNavButtonTranslationY);
+    private final AnimatedFloat mTaskbarNavButtonTranslationYForInAppDisplay = new AnimatedFloat(
+            this::updateNavButtonTranslationY);
     private final AnimatedFloat mTaskbarNavButtonTranslationYForIme = new AnimatedFloat(
             this::updateNavButtonTranslationY);
-    // Only applies to mTaskbarNavButtonTranslationY
-    private final AnimatedFloat mNavButtonTranslationYMultiplier = new AnimatedFloat(
-            this::updateNavButtonTranslationY);
+    // Used for System UI state updates that should translate the nav button for in-app display.
+    private final AnimatedFloat mNavButtonInAppDisplayProgressForSysui = new AnimatedFloat(
+            this::updateNavButtonInAppDisplayProgressForSysui);
     private final AnimatedFloat mTaskbarNavButtonDarkIntensity = new AnimatedFloat(
             this::updateNavButtonDarkIntensity);
     private final AnimatedFloat mNavButtonDarkIntensityMultiplier = new AnimatedFloat(
@@ -173,7 +176,6 @@
     public void init(TaskbarControllers controllers) {
         mControllers = controllers;
         mNavButtonsView.getLayoutParams().height = mContext.getDeviceProfile().taskbarSize;
-        mNavButtonTranslationYMultiplier.value = 1;
 
         boolean isThreeButtonNav = mContext.isThreeButtonNav();
         mIsImeRenderingNavButtons =
@@ -205,9 +207,9 @@
         // Make sure to remove nav bar buttons translation when notification shade is expanded or
         // IME is showing (add separate translation for IME).
         int flagsToRemoveTranslation = FLAG_NOTIFICATION_SHADE_EXPANDED | FLAG_IME_VISIBLE;
-        mPropertyHolders.add(new StatePropertyHolder(mNavButtonTranslationYMultiplier,
+        mPropertyHolders.add(new StatePropertyHolder(mNavButtonInAppDisplayProgressForSysui,
                 flags -> (flags & flagsToRemoveTranslation) != 0, AnimatedFloat.VALUE,
-                0, 1));
+                1, 0));
         // Center nav buttons in new height for IME.
         float transForIme = (mContext.getDeviceProfile().taskbarSize
                 - mControllers.taskbarInsetsController.getTaskbarHeightForIme()) / 2f;
@@ -526,6 +528,11 @@
         return mTaskbarNavButtonTranslationY;
     }
 
+    /** Use to set the translationY for the all nav+contextual buttons when in Launcher */
+    public AnimatedFloat getTaskbarNavButtonTranslationYForInAppDisplay() {
+        return mTaskbarNavButtonTranslationYForInAppDisplay;
+    }
+
     /** Use to set the dark intensity for the all nav+contextual buttons */
     public AnimatedFloat getTaskbarNavButtonDarkIntensity() {
         return mTaskbarNavButtonDarkIntensity;
@@ -554,11 +561,26 @@
         }
     }
 
+    private void updateNavButtonInAppDisplayProgressForSysui() {
+        TaskbarUIController uiController = mControllers.uiController;
+        if (uiController instanceof LauncherTaskbarUIController) {
+            ((LauncherTaskbarUIController) uiController).onTaskbarInAppDisplayProgressUpdate(
+                    mNavButtonInAppDisplayProgressForSysui.value, SYSUI_SURFACE_PROGRESS_INDEX);
+        }
+    }
+
     private void updateNavButtonTranslationY() {
-        float normalTranslationY = mTaskbarNavButtonTranslationY.value
-                * mNavButtonTranslationYMultiplier.value;
-        float otherTranslationY = mTaskbarNavButtonTranslationYForIme.value;
-        mNavButtonsView.setTranslationY(normalTranslationY + otherTranslationY);
+        final float normalTranslationY = mTaskbarNavButtonTranslationY.value;
+        final float imeAdjustmentTranslationY = mTaskbarNavButtonTranslationYForIme.value;
+        TaskbarUIController uiController = mControllers.uiController;
+        final float inAppDisplayAdjustmentTranslationY =
+                (uiController instanceof LauncherTaskbarUIController
+                        && ((LauncherTaskbarUIController) uiController).shouldUseInAppLayout())
+                        ? mTaskbarNavButtonTranslationYForInAppDisplay.value : 0;
+
+        mNavButtonsView.setTranslationY(normalTranslationY
+                + imeAdjustmentTranslationY
+                + inAppDisplayAdjustmentTranslationY);
     }
 
     private void updateNavButtonDarkIntensity() {
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index b349637..2f32219 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -199,7 +199,7 @@
                 new TaskbarInsetsController(this));
     }
 
-    public void init(TaskbarSharedState sharedState) {
+    public void init(@NonNull TaskbarSharedState sharedState) {
         mLastRequestedNonFullscreenHeight = getDefaultTaskbarWindowHeight();
         mWindowLayoutParams = createDefaultWindowLayoutParams();
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
index ff08e3d..449e0a7 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
@@ -61,6 +61,8 @@
     private boolean mAreAllControllersInitialized;
     private final List<Runnable> mPostInitCallbacks = new ArrayList<>();
 
+    @Nullable private TaskbarSharedState mSharedState = null;
+
     public TaskbarControllers(TaskbarActivityContext taskbarActivityContext,
             TaskbarDragController taskbarDragController,
             TaskbarNavButtonController navButtonController,
@@ -104,8 +106,9 @@
      * TaskbarControllers instance, but should be careful to only access things that were created
      * in constructors for now, as some controllers may still be waiting for init().
      */
-    public void init(TaskbarSharedState sharedState) {
+    public void init(@NonNull TaskbarSharedState sharedState) {
         mAreAllControllersInitialized = false;
+        mSharedState = sharedState;
 
         taskbarDragController.init(this);
         navbarButtonsViewController.init(this);
@@ -116,11 +119,11 @@
         taskbarUnfoldAnimationController.init(this);
         taskbarKeyguardController.init(navbarButtonsViewController);
         stashedHandleViewController.init(this);
-        taskbarStashController.init(this, sharedState);
+        taskbarStashController.init(this, sharedState.setupUIVisible);
         taskbarEduController.init(this);
         taskbarPopupController.init(this);
         taskbarForceVisibleImmersiveController.init(this);
-        taskbarAllAppsController.init(this, sharedState);
+        taskbarAllAppsController.init(this, sharedState.allAppsVisible);
         navButtonController.init(this);
         taskbarInsetsController.init(this);
 
@@ -139,6 +142,12 @@
         mPostInitCallbacks.clear();
     }
 
+    @Nullable
+    public TaskbarSharedState getSharedState() {
+        // This should only be null if called before init() and after destroy().
+        return mSharedState;
+    }
+
     public void onConfigurationChanged(@Config int configChanges) {
         navbarButtonsViewController.onConfigurationChanged(configChanges);
     }
@@ -147,6 +156,8 @@
      * Cleans up all controllers.
      */
     public void onDestroy() {
+        mSharedState = null;
+
         navbarButtonsViewController.onDestroy();
         uiController.onDestroy();
         rotationButtonController.onDestroy();
@@ -187,9 +198,12 @@
             return;
         }
 
+        pw.println(String.format(
+                "%s\tmAreAllControllersInitialized=%b", prefix, mAreAllControllersInitialized));
         for (LoggableTaskbarController controller : mControllersToLog) {
             controller.dumpLogs(prefix + "\t", pw);
         }
+        uiController.dumpLogs(prefix + "\t", pw);
         rotationButtonController.dumpLogs(prefix + "\t", pw);
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
index 36e6420..138fb99 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
@@ -42,7 +42,9 @@
 import com.android.systemui.animation.ViewRootSync;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 
+import java.io.PrintWriter;
 import java.util.HashMap;
+import java.util.StringJoiner;
 import java.util.function.Consumer;
 import java.util.function.Supplier;
 
@@ -476,4 +478,48 @@
             controller.applyState();
         }
     }
+
+    private static String getStateString(int flags) {
+        StringJoiner str = new StringJoiner("|");
+        str.add((flags & FLAG_RESUMED) != 0 ? "FLAG_RESUMED" : "");
+        str.add((flags & FLAG_RECENTS_ANIMATION_RUNNING) != 0
+                ? "FLAG_RECENTS_ANIMATION_RUNNING" : "");
+        str.add((flags & FLAG_TRANSITION_STATE_RUNNING) != 0
+                ? "FLAG_TRANSITION_STATE_RUNNING" : "");
+        return str.toString();
+    }
+
+    protected void dumpLogs(String prefix, PrintWriter pw) {
+        pw.println(prefix + "TaskbarLauncherStateController:");
+
+        pw.println(String.format(
+                "%s\tmIconAlignmentForResumedState=%.2f",
+                prefix,
+                mIconAlignmentForResumedState.value));
+        pw.println(String.format(
+                "%s\tmIconAlignmentForGestureState=%.2f",
+                prefix,
+                mIconAlignmentForGestureState.value));
+        pw.println(String.format(
+                "%s\tmIconAlignmentForLauncherState=%.2f",
+                prefix,
+                mIconAlignmentForLauncherState.value));
+        pw.println(String.format(
+                "%s\tmTaskbarBackgroundAlpha=%.2f", prefix, mTaskbarBackgroundAlpha.value));
+        pw.println(String.format(
+                "%s\tmIconAlphaForHome=%.2f", prefix, mIconAlphaForHome.getValue()));
+        pw.println(String.format("%s\tmPrevState=%s", prefix, getStateString(mPrevState)));
+        pw.println(String.format("%s\tmState=%s", prefix, getStateString(mState)));
+        pw.println(String.format("%s\tmLauncherState=%s", prefix, mLauncherState));
+        pw.println(String.format(
+                "%s\tmIsAnimatingToLauncherViaGesture=%b",
+                prefix,
+                mIsAnimatingToLauncherViaGesture));
+        pw.println(String.format(
+                "%s\tmIsAnimatingToLauncherViaResume=%b",
+                prefix,
+                mIsAnimatingToLauncherViaResume));
+        pw.println(String.format(
+                "%s\tmShouldDelayLauncherStateAnim=%b", prefix, mShouldDelayLauncherStateAnim));
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
index e02a9d7..2e37170 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
@@ -194,6 +194,9 @@
      * Sets a {@link StatefulActivity} to act as taskbar callback
      */
     public void setActivity(@NonNull StatefulActivity activity) {
+        if (mActivity == activity) {
+            return;
+        }
         mActivity = activity;
         mUnfoldProgressProvider.setSourceProvider(getUnfoldTransitionProgressProviderForActivity(
                 activity));
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarSharedState.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarSharedState.java
index a5c55b0..87b3789 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarSharedState.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarSharedState.java
@@ -25,5 +25,4 @@
     public boolean setupUIVisible = false;
 
     public boolean allAppsVisible = false;
-
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
index f34759d..7d95743 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
@@ -17,6 +17,7 @@
 
 import static android.view.HapticFeedbackConstants.LONG_PRESS;
 
+import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASKBAR_LONGPRESS_HIDE;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASKBAR_LONGPRESS_SHOW;
 import static com.android.launcher3.taskbar.Utilities.appendFlag;
@@ -34,7 +35,6 @@
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.taskbar.allapps.TaskbarAllAppsSlideInView;
 import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.util.MultiValueAlpha.AlphaProperty;
 import com.android.quickstep.AnimatedFloat;
@@ -167,7 +167,7 @@
         mStashedHeight = mActivity.getDeviceProfile().stashedTaskbarSize;
     }
 
-    public void init(TaskbarControllers controllers, TaskbarSharedState sharedState) {
+    public void init(TaskbarControllers controllers, boolean setupUIVisible) {
         mControllers = controllers;
 
         TaskbarDragLayerController dragLayerController = controllers.taskbarDragLayerController;
@@ -188,7 +188,7 @@
 
         boolean isManuallyStashedInApp = supportsManualStashing()
                 && mPrefs.getBoolean(SHARED_PREFS_STASHED_KEY, DEFAULT_STASHED_PREF);
-        boolean isInSetup = !mActivity.isUserSetupComplete() || sharedState.setupUIVisible;
+        boolean isInSetup = !mActivity.isUserSetupComplete() || setupUIVisible;
         updateStateForFlag(FLAG_STASHED_IN_APP_MANUAL, isManuallyStashedInApp);
         updateStateForFlag(FLAG_STASHED_IN_APP_SETUP, isInSetup);
         updateStateForFlag(FLAG_IN_SETUP, isInSetup);
@@ -202,7 +202,7 @@
      * state.
      */
     public boolean supportsVisualStashing() {
-        return !mActivity.isThreeButtonNav();
+        return mControllers.uiController.supportsVisualStashing();
     }
 
     /**
@@ -275,7 +275,7 @@
         return !mIsStashed && isInApp();
     }
 
-    private boolean isInApp() {
+    public boolean isInApp() {
         return hasAnyFlag(FLAGS_IN_APP);
     }
 
@@ -564,7 +564,8 @@
 
         updateStateForFlag(FLAG_STASHED_IN_APP_ALL_APPS, false);
         if (applyState) {
-            applyState(TaskbarAllAppsSlideInView.DEFAULT_CLOSE_DURATION);
+            applyState(ALL_APPS.getTransitionDuration(
+                    mControllers.taskbarActivityContext, false /* isToState */));
         }
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
index d5c399b..fcc34c6 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
@@ -22,6 +22,7 @@
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.ItemInfoWithIcon;
 
+import java.io.PrintWriter;
 import java.util.stream.Stream;
 
 /**
@@ -48,6 +49,11 @@
         return true;
     }
 
+    public boolean supportsVisualStashing() {
+        if (mControllers == null) return false;
+        return !mControllers.taskbarActivityContext.isThreeButtonNav();
+    }
+
     protected void onStashedInAppChanged() { }
 
     public Stream<ItemInfoWithIcon> getAppIconsForEdu() {
@@ -86,4 +92,12 @@
             stashController.applyState();
         }
     }
+
+    @CallSuper
+    protected void dumpLogs(String prefix, PrintWriter pw) {
+        pw.println(String.format(
+                "%sTaskbarUIController: using an instance of %s",
+                prefix,
+                getClass().getSimpleName()));
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
index 6416720..9b6cc66 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
@@ -73,6 +73,7 @@
     private final AnimatedFloat mTaskbarIconTranslationYForStash = new AnimatedFloat(
             this::updateTranslationY);
     private AnimatedFloat mTaskbarNavButtonTranslationY;
+    private AnimatedFloat mTaskbarNavButtonTranslationYForInAppDisplay;
 
     private final AnimatedFloat mThemeIconsBackground = new AnimatedFloat(
             this::updateIconsBackground);
@@ -112,6 +113,8 @@
         }
         mTaskbarNavButtonTranslationY =
                 controllers.navbarButtonsViewController.getTaskbarNavButtonTranslationY();
+        mTaskbarNavButtonTranslationYForInAppDisplay = controllers.navbarButtonsViewController
+                .getTaskbarNavButtonTranslationYForInAppDisplay();
     }
 
     public void onDestroy() {
@@ -242,6 +245,7 @@
         int offsetY = launcherDp.getTaskbarOffsetY();
         setter.setFloat(mTaskbarIconTranslationYForHome, VALUE, -offsetY, LINEAR);
         setter.setFloat(mTaskbarNavButtonTranslationY, VALUE, -offsetY, LINEAR);
+        setter.setFloat(mTaskbarNavButtonTranslationYForInAppDisplay, VALUE, offsetY, LINEAR);
 
         if (Utilities.isDarkTheme(mTaskbarView.getContext())) {
             setter.addFloat(mThemeIconsBackground, VALUE, 0f, 1f, LINEAR);
@@ -289,10 +293,12 @@
     }
 
     public void onRotationChanged(DeviceProfile deviceProfile) {
-        if (areIconsVisible()) {
+        if (mControllers.taskbarStashController.isInApp()) {
             // We only translate on rotation when on home
             return;
         }
+        mActivity.setTaskbarWindowHeight(
+                deviceProfile.taskbarSize + deviceProfile.getTaskbarOffsetY());
         mTaskbarNavButtonTranslationY.updateValue(-deviceProfile.getTaskbarOffsetY());
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsController.java b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsController.java
index 9fca8eb..eaf9384 100644
--- a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsController.java
@@ -38,7 +38,6 @@
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.taskbar.TaskbarActivityContext;
 import com.android.launcher3.taskbar.TaskbarControllers;
-import com.android.launcher3.taskbar.TaskbarSharedState;
 import com.android.systemui.shared.system.TaskStackChangeListener;
 import com.android.systemui.shared.system.TaskStackChangeListeners;
 
@@ -72,7 +71,6 @@
     };
 
     private TaskbarControllers mControllers;
-    private TaskbarSharedState mSharedState;
     /** Window context for all apps if it is open. */
     private @Nullable TaskbarAllAppsContext mAllAppsContext;
 
@@ -88,18 +86,17 @@
     }
 
     /** Initialize the controller. */
-    public void init(TaskbarControllers controllers, TaskbarSharedState sharedState) {
+    public void init(TaskbarControllers controllers, boolean allAppsVisible) {
         if (!FeatureFlags.ENABLE_ALL_APPS_IN_TASKBAR.get()) {
             return;
         }
         mControllers = controllers;
-        mSharedState = sharedState;
 
         /*
          * Recreate All Apps if it was open in the previous Taskbar instance (e.g. the configuration
          * changed).
          */
-        if (mSharedState.allAppsVisible) {
+        if (allAppsVisible) {
             show(false);
         }
     }
@@ -141,7 +138,9 @@
             return;
         }
         mProxyView.show();
-        mSharedState.allAppsVisible = true;
+        // mControllers and getSharedState should never be null here. Do not handle null-pointer
+        // to catch invalid states.
+        mControllers.getSharedState().allAppsVisible = true;
 
         mAllAppsContext = new TaskbarAllAppsContext(mTaskbarContext,
                 this,
@@ -176,7 +175,9 @@
             return;
         }
         mProxyView.close(false);
-        mSharedState.allAppsVisible = false;
+        // mControllers and getSharedState should never be null here. Do not handle null-pointer
+        // to catch invalid states.
+        mControllers.getSharedState().allAppsVisible = false;
         onDestroy();
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsSlideInView.java b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsSlideInView.java
index a37ebac..2d7ce32 100644
--- a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsSlideInView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsSlideInView.java
@@ -15,13 +15,16 @@
  */
 package com.android.launcher3.taskbar.allapps;
 
+import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.anim.Interpolators.AGGRESSIVE_EASE;
+import static com.android.systemui.animation.Interpolators.EMPHASIZED_ACCELERATE;
 
 import android.animation.PropertyValuesHolder;
 import android.content.Context;
 import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
+import android.view.animation.Interpolator;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Insettable;
@@ -33,9 +36,6 @@
 /** Wrapper for taskbar all apps with slide-in behavior. */
 public class TaskbarAllAppsSlideInView extends AbstractSlideInView<TaskbarAllAppsContext>
         implements Insettable, DeviceProfile.OnDeviceProfileChangeListener {
-    static final int DEFAULT_OPEN_DURATION = 500;
-    public static final int DEFAULT_CLOSE_DURATION = 200;
-
     private TaskbarAllAppsContainerView mAppsView;
     private OnCloseListener mOnCloseBeginListener;
     private float mShiftRange;
@@ -61,7 +61,8 @@
             mOpenCloseAnimator.setValues(
                     PropertyValuesHolder.ofFloat(TRANSLATION_SHIFT, TRANSLATION_SHIFT_OPENED));
             mOpenCloseAnimator.setInterpolator(AGGRESSIVE_EASE);
-            mOpenCloseAnimator.setDuration(DEFAULT_OPEN_DURATION).start();
+            mOpenCloseAnimator.setDuration(
+                    ALL_APPS.getTransitionDuration(mContext, true /* isToState */)).start();
         } else {
             mTranslationShift = TRANSLATION_SHIFT_OPENED;
         }
@@ -80,7 +81,12 @@
     @Override
     protected void handleClose(boolean animate) {
         Optional.ofNullable(mOnCloseBeginListener).ifPresent(OnCloseListener::onSlideInViewClosed);
-        handleClose(animate, DEFAULT_CLOSE_DURATION);
+        handleClose(animate, ALL_APPS.getTransitionDuration(mContext, false /* isToState */));
+    }
+
+    @Override
+    protected Interpolator getIdleInterpolator() {
+        return EMPHASIZED_ACCELERATE;
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsViewController.java b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsViewController.java
index f19b7de..a39e872 100644
--- a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsViewController.java
@@ -15,8 +15,8 @@
  */
 package com.android.launcher3.taskbar.allapps;
 
+import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.taskbar.TaskbarStashController.FLAG_STASHED_IN_APP_ALL_APPS;
-import static com.android.launcher3.taskbar.allapps.TaskbarAllAppsSlideInView.DEFAULT_OPEN_DURATION;
 import static com.android.launcher3.util.OnboardingPrefs.ALL_APPS_VISITED_COUNT;
 
 import com.android.launcher3.AbstractFloatingView;
@@ -81,7 +81,8 @@
 
     private void setUpTaskbarStashing() {
         mTaskbarStashController.updateStateForFlag(FLAG_STASHED_IN_APP_ALL_APPS, true);
-        mTaskbarStashController.applyState(DEFAULT_OPEN_DURATION);
+        mTaskbarStashController.applyState(
+                ALL_APPS.getTransitionDuration(mContext, true /* isToState */));
         mSlideInView.setOnCloseBeginListener(() -> {
             AbstractFloatingView.closeOpenContainer(
                     mContext, AbstractFloatingView.TYPE_ACTION_POPUP);
diff --git a/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java b/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
index 86f26c3..00a98c0 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
@@ -118,7 +118,7 @@
         if (toState == OVERVIEW_SPLIT_SELECT) {
             // Animation to "dismiss" selected taskView
             PendingAnimation splitSelectInitAnimation = mRecentsView.createSplitSelectInitAnimation(
-                    toState.getTransitionDuration(mLauncher));
+                    toState.getTransitionDuration(mLauncher, true /* isToState */));
             // Add properties to shift remaining taskViews to get out of placeholder view
             splitSelectInitAnimation.setFloat(mRecentsView, taskViewsFloat.first,
                     toState.getSplitSelectTranslation(mLauncher), LINEAR);
diff --git a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
index df0ac7c..fe0bca6 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
@@ -33,12 +33,12 @@
 import com.android.systemui.shared.plugins.PluginManager;
 import com.android.systemui.shared.plugins.PluginManagerImpl;
 import com.android.systemui.shared.plugins.PluginPrefs;
+import com.android.systemui.shared.system.UncaughtExceptionPreHandlerManager;
 
 import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
-import java.util.Optional;
 import java.util.Set;
 
 public class PluginManagerWrapper {
@@ -48,6 +48,9 @@
 
     public static final String PLUGIN_CHANGED = PluginManager.PLUGIN_CHANGED;
 
+    private static final UncaughtExceptionPreHandlerManager UNCAUGHT_EXCEPTION_PRE_HANDLER_MANAGER =
+            new UncaughtExceptionPreHandlerManager();
+
     private final Context mContext;
     private final PluginManager mPluginManager;
     private final PluginEnablerImpl mPluginEnabler;
@@ -67,7 +70,7 @@
 
         mPluginManager = new PluginManagerImpl(c, instanceManagerFactory,
                 Utilities.IS_DEBUG_DEVICE,
-                Optional.ofNullable(Thread.getDefaultUncaughtExceptionHandler()), mPluginEnabler,
+                UNCAUGHT_EXCEPTION_PRE_HANDLER_MANAGER, mPluginEnabler,
                 new PluginPrefs(c), privilegedPlugins);
     }
 
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java b/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java
index cd14b3f..c25a815 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java
@@ -30,15 +30,16 @@
  */
 public class AllAppsState extends LauncherState {
 
-    private static final int STATE_FLAGS = FLAG_WORKSPACE_INACCESSIBLE | FLAG_CLOSE_POPUPS;
+    private static final int STATE_FLAGS =
+            FLAG_WORKSPACE_INACCESSIBLE | FLAG_CLOSE_POPUPS | FLAG_HOTSEAT_INACCESSIBLE;
 
     public AllAppsState(int id) {
         super(id, LAUNCHER_STATE_ALLAPPS, STATE_FLAGS);
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
-        return 150;
+    public int getTransitionDuration(Context context, boolean isToState) {
+        return isToState ? 500 : 300;
     }
 
     @Override
@@ -88,7 +89,9 @@
 
     @Override
     public int getVisibleElements(Launcher launcher) {
-        return ALL_APPS_CONTENT | HOTSEAT_ICONS;
+        // Don't add HOTSEAT_ICONS for phones in ALL_APPS state.
+        return launcher.getDeviceProfile().isPhone ? ALL_APPS_CONTENT
+                : ALL_APPS_CONTENT | HOTSEAT_ICONS;
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java
index 6f084a1..0c49e5f 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java
@@ -40,7 +40,7 @@
     }
 
     @Override
-    public int getTransitionDuration(Context launcher) {
+    public int getTransitionDuration(Context launcher, boolean isToState) {
         return 300;
     }
 
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
index 236454e..699ce97 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
@@ -22,10 +22,12 @@
 import android.graphics.Rect;
 import android.os.SystemProperties;
 
+import com.android.launcher3.BaseQuickstepLauncher;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
+import com.android.launcher3.taskbar.LauncherTaskbarUIController;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.Themes;
 import com.android.quickstep.util.LayoutUtils;
@@ -56,7 +58,7 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
+    public int getTransitionDuration(Context context, boolean isToState) {
         // In gesture modes, overview comes in all the way from the side, so give it more time.
         return DisplayController.getNavigationMode(context).hasGestures ? 380 : 250;
     }
@@ -93,7 +95,13 @@
 
     @Override
     public boolean isTaskbarStashed(Launcher launcher) {
-        return true;
+        if (launcher instanceof BaseQuickstepLauncher) {
+            LauncherTaskbarUIController uiController =
+                    ((BaseQuickstepLauncher) launcher).getTaskbarUIController();
+
+            return uiController != null && uiController.supportsVisualStashing();
+        }
+        return super.isTaskbarStashed(launcher);
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java b/quickstep/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java
index b1d83e7..b5b03a1 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java
@@ -42,6 +42,7 @@
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_X;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_Y;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_SCRIM_FADE;
+import static com.android.launcher3.states.StateAnimationConfig.ANIM_VERTICAL_PROGRESS;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_FADE;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_SCALE;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_TRANSLATE;
@@ -50,6 +51,8 @@
 import static com.android.launcher3.uioverrides.touchcontrollers.PortraitStatesTouchController.ALL_APPS_SCRIM_OPAQUE_THRESHOLD;
 import static com.android.launcher3.uioverrides.touchcontrollers.PortraitStatesTouchController.ALL_APPS_SCRIM_VISIBLE_THRESHOLD;
 import static com.android.quickstep.views.RecentsView.RECENTS_SCALE_PROPERTY;
+import static com.android.systemui.animation.Interpolators.EMPHASIZED_ACCELERATE;
+import static com.android.systemui.animation.Interpolators.EMPHASIZED_DECELERATE;
 
 import android.animation.ValueAnimator;
 
@@ -179,12 +182,17 @@
             }
             config.duration = Math.max(config.duration, mHintToNormalDuration);
         } else if (fromState == ALL_APPS && toState == NORMAL) {
-            config.setInterpolator(ANIM_ALL_APPS_FADE, Interpolators.clampToProgress(DEACCEL,
-                    1 - ALL_APPS_CONTENT_FADE_MAX_CLAMPING_THRESHOLD,
-                    1 - ALL_APPS_CONTENT_FADE_MIN_CLAMPING_THRESHOLD));
-            config.setInterpolator(ANIM_SCRIM_FADE, Interpolators.clampToProgress(DEACCEL,
+            boolean isTablet = mActivity.getDeviceProfile().isTablet;
+            config.setInterpolator(ANIM_ALL_APPS_FADE,
+                    isTablet ? FINAL_FRAME : Interpolators.clampToProgress(LINEAR,
+                            1 - ALL_APPS_CONTENT_FADE_MAX_CLAMPING_THRESHOLD,
+                            1 - ALL_APPS_CONTENT_FADE_MIN_CLAMPING_THRESHOLD));
+            config.setInterpolator(ANIM_SCRIM_FADE, Interpolators.clampToProgress(LINEAR,
                     1 - ALL_APPS_SCRIM_OPAQUE_THRESHOLD,
                     1 - ALL_APPS_SCRIM_VISIBLE_THRESHOLD));
+            config.setInterpolator(ANIM_VERTICAL_PROGRESS, EMPHASIZED_ACCELERATE);
+        } else if (fromState == NORMAL && toState == ALL_APPS) {
+            config.setInterpolator(ANIM_VERTICAL_PROGRESS, EMPHASIZED_DECELERATE);
         }
     }
 }
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java
index 7ec1243..4da1d41 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java
@@ -180,7 +180,7 @@
             // Normally we compute the duration based on the velocity and distance to the given
             // state, but since the hint state tracks the entire screen without a clear endpoint, we
             // need to manually set the duration to a reasonable value.
-            animator.setDuration(HINT_STATE.getTransitionDuration(mLauncher));
+            animator.setDuration(HINT_STATE.getTransitionDuration(mLauncher, true /* isToState */));
         }
     }
 
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java
index 27a55c3..1504c12 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java
@@ -21,10 +21,9 @@
 import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.OVERVIEW;
-import static com.android.launcher3.anim.Interpolators.ACCEL;
-import static com.android.launcher3.anim.Interpolators.DEACCEL;
 import static com.android.launcher3.anim.Interpolators.FINAL_FRAME;
 import static com.android.launcher3.anim.Interpolators.INSTANT;
+import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_ALL_APPS_FADE;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_SCRIM_FADE;
 
@@ -131,10 +130,10 @@
         boolean isTablet = mLauncher.getDeviceProfile().isTablet;
         builder.setInterpolator(ANIM_ALL_APPS_FADE, isTablet
                 ? INSTANT
-                : Interpolators.clampToProgress(ACCEL,
+                : Interpolators.clampToProgress(LINEAR,
                         ALL_APPS_CONTENT_FADE_MIN_CLAMPING_THRESHOLD,
                         ALL_APPS_CONTENT_FADE_MAX_CLAMPING_THRESHOLD));
-        builder.setInterpolator(ANIM_SCRIM_FADE, Interpolators.clampToProgress(ACCEL,
+        builder.setInterpolator(ANIM_SCRIM_FADE, Interpolators.clampToProgress(LINEAR,
                 ALL_APPS_SCRIM_VISIBLE_THRESHOLD,
                 ALL_APPS_SCRIM_OPAQUE_THRESHOLD));
         return builder;
@@ -145,10 +144,10 @@
         boolean isTablet = mLauncher.getDeviceProfile().isTablet;
         builder.setInterpolator(ANIM_ALL_APPS_FADE, isTablet
                 ? FINAL_FRAME
-                : Interpolators.clampToProgress(DEACCEL,
+                : Interpolators.clampToProgress(LINEAR,
                         1 - ALL_APPS_CONTENT_FADE_MAX_CLAMPING_THRESHOLD,
                         1 - ALL_APPS_CONTENT_FADE_MIN_CLAMPING_THRESHOLD));
-        builder.setInterpolator(ANIM_SCRIM_FADE, Interpolators.clampToProgress(DEACCEL,
+        builder.setInterpolator(ANIM_SCRIM_FADE, Interpolators.clampToProgress(LINEAR,
                 1 - ALL_APPS_SCRIM_OPAQUE_THRESHOLD,
                 1 - ALL_APPS_SCRIM_VISIBLE_THRESHOLD));
         return builder;
diff --git a/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java b/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
index 6e81b6f..dc65b50 100644
--- a/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
+++ b/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
@@ -45,6 +45,7 @@
 import com.android.systemui.shared.system.QuickStepContract;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
+
 /**
  * Controls the animation of swiping back and returning to launcher.
  *
@@ -87,6 +88,7 @@
     private boolean mAnimatorSetInProgress = false;
     private float mBackProgress = 0;
     private boolean mBackInProgress = false;
+    private IOnBackInvokedCallback mBackCallback;
 
     public LauncherBackAnimationController(
             BaseQuickstepLauncher launcher,
@@ -112,34 +114,35 @@
      * @param handler Handler to the thread to run the animations on.
      */
     public void registerBackCallbacks(Handler handler) {
-        SystemUiProxy.INSTANCE.get(mLauncher).setBackToLauncherCallback(
-                new IOnBackInvokedCallback.Stub() {
-                    @Override
-                    public void onBackCancelled() {
-                        handler.post(() -> resetPositionAnimated());
-                    }
+        mBackCallback = new IOnBackInvokedCallback.Stub() {
+            @Override
+            public void onBackCancelled() {
+                handler.post(() -> resetPositionAnimated());
+            }
 
-                    @Override
-                    public void onBackInvoked() {
-                        handler.post(() -> startTransition());
-                    }
+            @Override
+            public void onBackInvoked() {
+                handler.post(() -> startTransition());
+            }
 
-                    @Override
-                    public void onBackProgressed(BackEvent backEvent) {
-                        mBackProgress = backEvent.getProgress();
-                        // TODO: Update once the interpolation curve spec is finalized.
-                        mBackProgress =
-                                1 - (1 - mBackProgress) * (1 - mBackProgress) * (1
-                                        - mBackProgress);
-                        if (!mBackInProgress) {
-                            startBack(backEvent);
-                        } else {
-                            updateBackProgress(mBackProgress, backEvent);
-                        }
-                    }
+            @Override
+            public void onBackProgressed(BackEvent backEvent) {
+                mBackProgress = backEvent.getProgress();
+                // TODO: Update once the interpolation curve spec is finalized.
+                mBackProgress =
+                        1 - (1 - mBackProgress) * (1 - mBackProgress) * (1
+                                - mBackProgress);
+                if (!mBackInProgress) {
+                    startBack(backEvent);
+                } else {
+                    updateBackProgress(mBackProgress, backEvent);
+                }
+            }
 
-                    public void onBackStarted() { }
-                });
+            @Override
+            public void onBackStarted() { }
+        };
+        SystemUiProxy.INSTANCE.get(mLauncher).setBackToLauncherCallback(mBackCallback);
     }
 
     private void resetPositionAnimated() {
@@ -162,7 +165,10 @@
 
     /** Unregisters the back to launcher callback in shell. */
     public void unregisterBackCallbacks() {
-        SystemUiProxy.INSTANCE.get(mLauncher).clearBackToLauncherCallback();
+        if (mBackCallback != null) {
+            SystemUiProxy.INSTANCE.get(mLauncher).clearBackToLauncherCallback(mBackCallback);
+        }
+        mBackCallback = null;
     }
 
     private void startBack(BackEvent backEvent) {
diff --git a/quickstep/src/com/android/quickstep/SystemUiProxy.java b/quickstep/src/com/android/quickstep/SystemUiProxy.java
index 5ef89d3..fc4c23f 100644
--- a/quickstep/src/com/android/quickstep/SystemUiProxy.java
+++ b/quickstep/src/com/android/quickstep/SystemUiProxy.java
@@ -847,8 +847,14 @@
         }
     }
 
-    /** Clears the previously registered {@link IOnBackInvokedCallback}. */
-    public void clearBackToLauncherCallback() {
+    /** Clears the previously registered {@link IOnBackInvokedCallback}.
+     *
+     * @param callback The previously registered callback instance.
+     */
+    public void clearBackToLauncherCallback(IOnBackInvokedCallback callback) {
+        if (mBackToLauncherCallback != callback) {
+            return;
+        }
         mBackToLauncherCallback = null;
         if (mBackAnimation == null) {
             return;
diff --git a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
index 5094d49..f68bbbc 100644
--- a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
+++ b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
@@ -112,7 +112,7 @@
         RecentsState currentState = mActivity.getStateManager().getState();
         if (isSplitSelectionState(state) && !isSplitSelectionState(currentState)) {
             setter.add(mRecentsView.createSplitSelectInitAnimation(
-                    state.getTransitionDuration(mActivity)).buildAnim());
+                    state.getTransitionDuration(mActivity, true /* isToState */)).buildAnim());
         }
 
         Pair<FloatProperty, FloatProperty> taskViewsFloat =
diff --git a/quickstep/src/com/android/quickstep/fallback/RecentsState.java b/quickstep/src/com/android/quickstep/fallback/RecentsState.java
index 9705bb6..77db6b7 100644
--- a/quickstep/src/com/android/quickstep/fallback/RecentsState.java
+++ b/quickstep/src/com/android/quickstep/fallback/RecentsState.java
@@ -77,7 +77,7 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
+    public int getTransitionDuration(Context context, boolean isToState) {
         return 250;
     }
 
diff --git a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java
index 9ba5577..35d9f22 100644
--- a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java
+++ b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java
@@ -33,17 +33,22 @@
     }
 
     @Override
-    public Integer getIntroductionTitle() {
+    public int getIntroductionTitle() {
         return R.string.back_gesture_intro_title;
     }
 
     @Override
-    public Integer getIntroductionSubtitle() {
+    public int getIntroductionSubtitle() {
         return R.string.back_gesture_intro_subtitle;
     }
 
     @Override
-    public Integer getSuccessFeedbackSubtitle() {
+    public int getSpokenIntroductionSubtitle() {
+        return R.string.back_gesture_spoken_intro_subtitle;
+    }
+
+    @Override
+    public int getSuccessFeedbackSubtitle() {
         return mTutorialFragment.isAtFinalStep()
                 ? R.string.back_gesture_feedback_complete_without_follow_up
                 : R.string.back_gesture_feedback_complete_with_overview_follow_up;
diff --git a/quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java b/quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java
index 6254313..f519d50 100644
--- a/quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java
+++ b/quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java
@@ -32,17 +32,22 @@
     }
 
     @Override
-    public Integer getIntroductionTitle() {
+    public int getIntroductionTitle() {
         return R.string.home_gesture_intro_title;
     }
 
     @Override
-    public Integer getIntroductionSubtitle() {
+    public int getIntroductionSubtitle() {
         return R.string.home_gesture_intro_subtitle;
     }
 
     @Override
-    public Integer getSuccessFeedbackSubtitle() {
+    public int getSpokenIntroductionSubtitle() {
+        return R.string.home_gesture_spoken_intro_subtitle;
+    }
+
+    @Override
+    public int getSuccessFeedbackSubtitle() {
         return mTutorialFragment.isAtFinalStep()
                 ? R.string.home_gesture_feedback_complete_without_follow_up
                 : R.string.home_gesture_feedback_complete_with_follow_up;
diff --git a/quickstep/src/com/android/quickstep/interaction/OverviewGestureTutorialController.java b/quickstep/src/com/android/quickstep/interaction/OverviewGestureTutorialController.java
index 09640c6..6b016ce 100644
--- a/quickstep/src/com/android/quickstep/interaction/OverviewGestureTutorialController.java
+++ b/quickstep/src/com/android/quickstep/interaction/OverviewGestureTutorialController.java
@@ -42,17 +42,22 @@
     }
 
     @Override
-    public Integer getIntroductionTitle() {
+    public int getIntroductionTitle() {
         return R.string.overview_gesture_intro_title;
     }
 
     @Override
-    public Integer getIntroductionSubtitle() {
+    public int getIntroductionSubtitle() {
         return R.string.overview_gesture_intro_subtitle;
     }
 
     @Override
-    public Integer getSuccessFeedbackSubtitle() {
+    public int getSpokenIntroductionSubtitle() {
+        return R.string.overview_gesture_spoken_intro_subtitle;
+    }
+
+    @Override
+    public int getSuccessFeedbackSubtitle() {
         return mTutorialFragment.getNumSteps() > 1 && mTutorialFragment.isAtFinalStep()
                 ? R.string.overview_gesture_feedback_complete_with_follow_up
                 : R.string.overview_gesture_feedback_complete_without_follow_up;
diff --git a/quickstep/src/com/android/quickstep/interaction/TutorialController.java b/quickstep/src/com/android/quickstep/interaction/TutorialController.java
index 6a8894e..fa7d848 100644
--- a/quickstep/src/com/android/quickstep/interaction/TutorialController.java
+++ b/quickstep/src/com/android/quickstep/interaction/TutorialController.java
@@ -62,7 +62,7 @@
 abstract class TutorialController implements BackGestureAttemptCallback,
         NavBarGestureAttemptCallback {
 
-    private static final String TAG = "TutorialController";
+    private static final String LOG_TAG = "TutorialController";
 
     private static final float FINGER_DOT_VISIBLE_ALPHA = 0.7f;
     private static final float FINGER_DOT_SMALL_SCALE = 0.7f;
@@ -217,18 +217,23 @@
     }
 
     @StringRes
-    public Integer getIntroductionTitle() {
-        return null;
+    public int getIntroductionTitle() {
+        return NO_ID;
     }
 
     @StringRes
-    public Integer getIntroductionSubtitle() {
-        return null;
+    public int getIntroductionSubtitle() {
+        return NO_ID;
     }
 
     @StringRes
-    public Integer getSuccessFeedbackSubtitle() {
-        return null;
+    public int getSpokenIntroductionSubtitle() {
+        return NO_ID;
+    }
+
+    @StringRes
+    public int getSuccessFeedbackSubtitle() {
+        return NO_ID;
     }
 
     void showFeedback() {
@@ -247,7 +252,16 @@
      * Show feedback reflecting a successful gesture attempt.
      **/
     void showSuccessFeedback() {
-        showFeedback(getSuccessFeedbackSubtitle(), true);
+        int successSubtitleResId = getSuccessFeedbackSubtitle();
+        if (successSubtitleResId == NO_ID) {
+            // Allow crash since this should never be reached with a tutorial controller used in
+            // production.
+            Log.e(LOG_TAG,
+                    "Cannot show success feedback for tutorial step: " + mTutorialType
+                            + ", no success feedback subtitle",
+                    new IllegalStateException());
+        }
+        showFeedback(successSubtitleResId, true);
     }
 
     /**
@@ -269,6 +283,7 @@
                 isGestureSuccessful
                         ? R.string.gesture_tutorial_nice : R.string.gesture_tutorial_try_again,
                 subtitleResId,
+                NO_ID,
                 isGestureSuccessful,
                 false);
     }
@@ -276,6 +291,7 @@
     void showFeedback(
             int titleResId,
             int subtitleResId,
+            int spokenSubtitleResId,
             boolean isGestureSuccessful,
             boolean useGestureAnimationDelay) {
         mFeedbackTitleView.removeCallbacks(mTitleViewCallback);
@@ -287,7 +303,10 @@
         mFeedbackTitleView.setText(titleResId);
         TextView subtitle =
                 mFeedbackView.findViewById(R.id.gesture_tutorial_fragment_feedback_subtitle);
-        subtitle.setText(subtitleResId);
+        subtitle.setText(spokenSubtitleResId == NO_ID
+                ? mContext.getText(subtitleResId)
+                : Utilities.wrapForTts(
+                        mContext.getText(subtitleResId), mContext.getString(spokenSubtitleResId)));
         if (isGestureSuccessful) {
             if (mTutorialFragment.isAtFinalStep()) {
                 showActionButton();
@@ -580,7 +599,7 @@
                         packageManager.getApplicationInfo(
                                 PIXEL_TIPS_APP_PACKAGE_NAME, PackageManager.GET_META_DATA));
             } catch (PackageManager.NameNotFoundException e) {
-                Log.e(TAG,
+                Log.e(LOG_TAG,
                         "Could not find app label for package name: "
                                 + PIXEL_TIPS_APP_PACKAGE_NAME
                                 + ". Defaulting to 'Pixel Tips.'",
@@ -593,7 +612,7 @@
                 subtitleTextView.setText(
                         mContext.getString(R.string.skip_tutorial_dialog_subtitle, tipsAppName));
             } else {
-                Log.w(TAG, "No subtitle view in the skip tutorial dialog to update.");
+                Log.w(LOG_TAG, "No subtitle view in the skip tutorial dialog to update.");
             }
 
             Button cancelButton = (Button) contentView.findViewById(
@@ -602,7 +621,7 @@
                 cancelButton.setOnClickListener(
                         v -> tutorialDialog.dismiss());
             } else {
-                Log.w(TAG, "No cancel button in the skip tutorial dialog to update.");
+                Log.w(LOG_TAG, "No cancel button in the skip tutorial dialog to update.");
             }
 
             Button confirmButton = contentView.findViewById(
@@ -613,7 +632,7 @@
                     tutorialDialog.dismiss();
                 });
             } else {
-                Log.w(TAG, "No confirm button in the skip tutorial dialog to update.");
+                Log.w(LOG_TAG, "No confirm button in the skip tutorial dialog to update.");
             }
 
             tutorialDialog.getWindow().setBackgroundDrawable(
diff --git a/quickstep/src/com/android/quickstep/interaction/TutorialFragment.java b/quickstep/src/com/android/quickstep/interaction/TutorialFragment.java
index 33e800d..1599c8c 100644
--- a/quickstep/src/com/android/quickstep/interaction/TutorialFragment.java
+++ b/quickstep/src/com/android/quickstep/interaction/TutorialFragment.java
@@ -15,6 +15,8 @@
  */
 package com.android.quickstep.interaction;
 
+import static android.view.View.NO_ID;
+
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.app.Activity;
@@ -211,13 +213,31 @@
         if (isGestureComplete()) {
             mTutorialController.showSuccessFeedback();
         } else if (!mIntroductionShown) {
-            Integer introTileStringResId = mTutorialController.getIntroductionTitle();
-            Integer introSubtitleResId = mTutorialController.getIntroductionSubtitle();
-            if (introTileStringResId != null && introSubtitleResId != null) {
-                mTutorialController.showFeedback(
-                        introTileStringResId, introSubtitleResId, false, true);
-                mIntroductionShown = true;
+            int introTitleResId = mTutorialController.getIntroductionTitle();
+            int introSubtitleResId = mTutorialController.getIntroductionSubtitle();
+            if (introTitleResId == NO_ID) {
+                // Allow crash since this should never be reached with a tutorial controller used in
+                // production.
+                Log.e(LOG_TAG,
+                        "Cannot show introduction feedback for tutorial step: " + mTutorialType
+                                + ", no introduction feedback title",
+                        new IllegalStateException());
             }
+            if (introTitleResId == NO_ID) {
+                // Allow crash since this should never be reached with a tutorial controller used in
+                // production.
+                Log.e(LOG_TAG,
+                        "Cannot show introduction feedback for tutorial step: " + mTutorialType
+                                + ", no introduction feedback subtitle",
+                        new IllegalStateException());
+            }
+            mTutorialController.showFeedback(
+                    introTitleResId,
+                    introSubtitleResId,
+                    mTutorialController.getSpokenIntroductionSubtitle(),
+                    false,
+                    true);
+            mIntroductionShown = true;
         }
     }
 
diff --git a/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java b/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java
index 5cf4f0b..3cec1a4 100644
--- a/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java
+++ b/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java
@@ -82,7 +82,7 @@
             // WorkspaceRevealAnim handles the depth, so don't interfere.
             config.animFlags |= StateAnimationConfig.SKIP_DEPTH_CONTROLLER;
         }
-        config.duration = startState.getTransitionDuration(mLauncher);
+        config.duration = startState.getTransitionDuration(mLauncher, false /* isToState */);
         AnimatorSet stateAnim = stateManager.createAtomicAnimation(
                 startState, NORMAL, config);
         stateAnim.addListener(new AnimationSuccessListener() {
diff --git a/quickstep/src/com/android/quickstep/views/FloatingTaskView.java b/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
index 54420de..c980d1e 100644
--- a/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
+++ b/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
@@ -196,6 +196,13 @@
                     0, 1, ACCEL);
             animation.addFloat(mThumbnailView, LauncherAnimUtils.VIEW_ALPHA,
                     1, 0, DEACCEL_3);
+        } else if (isStagedTask) {
+            // Fade in the placeholder view when split is initiated from homescreen / all apps
+            // icons.
+            if (mSplitPlaceholderView.getAlpha() == 0) {
+                animation.addFloat(mSplitPlaceholderView, SplitPlaceholderView.ALPHA_FLOAT,
+                        0.3f, 1, ACCEL);
+            }
         }
 
         MultiValueUpdateListener listener = new MultiValueUpdateListener() {
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 71b2cea..224c1f6 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -2757,16 +2757,15 @@
                     mSplitHiddenTaskView.getThumbnail().getThumbnail(),
                     mSplitHiddenTaskView.getIconView().getDrawable(), startingTaskRect);
             mFirstFloatingTaskView.setAlpha(1);
-            mFirstFloatingTaskView.addAnimation(anim, startingTaskRect,
-                    mTempRect, true /* fadeWithThumbnail */, true /* isStagedTask */);
+            mFirstFloatingTaskView.addAnimation(anim, startingTaskRect, mTempRect,
+                    true /* fadeWithThumbnail */, true /* isStagedTask */);
         } else {
-            mSplitSelectSource.view.setVisibility(INVISIBLE);
             mFirstFloatingTaskView = FloatingTaskView.getFloatingTaskView(mActivity,
-                    mSplitSelectSource.view, null,
+                    mSplitSelectSource.view, null /* thumbnail */,
                     mSplitSelectSource.drawable, startingTaskRect);
             mFirstFloatingTaskView.setAlpha(1);
-            mFirstFloatingTaskView.addAnimation(anim, startingTaskRect,
-                    mTempRect, true /* fadeWithThumbnail */, true /* isStagedTask */);
+            mFirstFloatingTaskView.addAnimation(anim, startingTaskRect, mTempRect,
+                    false /* fadeWithThumbnail */, true /* isStagedTask */);
         }
         InteractionJankMonitorWrapper.begin(this,
                 InteractionJankMonitorWrapper.CUJ_SPLIT_SCREEN_ENTER, "First tile selected");
@@ -4059,7 +4058,8 @@
         // 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(getContext(),
+                false /* isToState */);
         PendingAnimation pendingAnimation = new PendingAnimation(duration);
 
         int halfDividerSize = getResources()
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 4b42ecb..1c62ded 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -3168,6 +3168,24 @@
         return new DragOptions();
     }
 
+    /**
+     * Animates Launcher elements during a transition to the All Apps page.
+     *
+     * @param progress Transition progress from 0 to 1; where 0 => home and 1 => all apps.
+     */
+    public void onAllAppsTransition(float progress) {
+        // No-Op
+    }
+
+    /**
+     * Animates Launcher elements during a transition to the Widgets pages.
+     *
+     * @param progress Transition progress from 0 to 1; where 0 => home and 1 => widgets.
+     */
+    public void onWidgetsTransition(float progress) {
+        // No-Op
+    }
+
     private static class NonConfigInstance {
         public Configuration config;
         public Bitmap snapshot;
diff --git a/src/com/android/launcher3/LauncherState.java b/src/com/android/launcher3/LauncherState.java
index baee49f..ea6a919 100644
--- a/src/com/android/launcher3/LauncherState.java
+++ b/src/com/android/launcher3/LauncherState.java
@@ -80,6 +80,9 @@
     public static final int FLAG_CLOSE_POPUPS = BaseState.getFlag(6);
     public static final int FLAG_OVERVIEW_UI = BaseState.getFlag(7);
 
+    // Flag indicating that hotseat and its contents are not accessible.
+    public static final int FLAG_HOTSEAT_INACCESSIBLE = BaseState.getFlag(8);
+
 
     public static final float NO_OFFSET = 0;
     public static final float NO_SCALE = 1;
@@ -110,7 +113,7 @@
             FLAG_DISABLE_RESTORE | FLAG_WORKSPACE_ICONS_CAN_BE_DRAGGED | FLAG_HIDE_BACK_BUTTON |
                     FLAG_HAS_SYS_UI_SCRIM) {
         @Override
-        public int getTransitionDuration(Context context) {
+        public int getTransitionDuration(Context context, boolean isToState) {
             // Arbitrary duration, when going to NORMAL we use the state we're coming from instead.
             return 0;
         }
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 78771ce..836d4b8 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -2118,7 +2118,7 @@
                     final Runnable onCompleteCallback = onCompleteRunnable;
                     mLauncher.getDragController().animateDragViewToOriginalPosition(
                             /* onComplete= */ callbackList::executeAllAndDestroy, cell,
-                            SPRING_LOADED.getTransitionDuration(mLauncher));
+                            SPRING_LOADED.getTransitionDuration(mLauncher, true /* isToState */));
                     mLauncher.getStateManager().goToState(NORMAL, /* delay= */ 0,
                             onCompleteCallback == null
                                     ? null
diff --git a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
index 84b95ec..bf56ac0 100644
--- a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
+++ b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
@@ -25,6 +25,7 @@
 import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_Y;
 import static com.android.launcher3.LauncherAnimUtils.WORKSPACE_SCALE_PROPERTY_FACTORY;
 import static com.android.launcher3.LauncherState.FLAG_HAS_SYS_UI_SCRIM;
+import static com.android.launcher3.LauncherState.FLAG_HOTSEAT_INACCESSIBLE;
 import static com.android.launcher3.LauncherState.HINT_STATE;
 import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
 import static com.android.launcher3.LauncherState.NORMAL;
@@ -151,6 +152,12 @@
         propertySetter.setViewAlpha(mLauncher.getWorkspace().getPageIndicator(),
                 workspacePageIndicatorAlpha, fadeInterpolator);
 
+        // Update the accessibility flags for hotseat based on launcher state.
+        hotseat.setImportantForAccessibility(
+                state.hasFlag(FLAG_HOTSEAT_INACCESSIBLE)
+                        ? View.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS
+                        : View.IMPORTANT_FOR_ACCESSIBILITY_AUTO);
+
         Interpolator translationInterpolator =
                 config.getInterpolator(ANIM_WORKSPACE_TRANSLATE, ZOOM_OUT);
         propertySetter.setFloat(mWorkspace, VIEW_TRANSLATE_X,
diff --git a/src/com/android/launcher3/allapps/AllAppsTransitionController.java b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
index 637a418..3600bd2 100644
--- a/src/com/android/launcher3/allapps/AllAppsTransitionController.java
+++ b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
@@ -190,6 +190,7 @@
     public void setProgress(float progress) {
         mProgress = progress;
         getAppsViewProgressTranslationY().set(mAppsView, mProgress * mShiftRange);
+        mLauncher.onAllAppsTransition(1 - progress);
     }
 
     public float getProgress() {
@@ -254,8 +255,6 @@
         anim.setInterpolator(verticalProgressInterpolator);
         anim.addListener(getProgressAnimatorListener());
         builder.add(anim);
-        // Use ANIM_VERTICAL_PROGRESS's interpolator to determine state transition threshold.
-        builder.setInterpolator(verticalProgressInterpolator);
 
         setAlphas(toState, config, builder);
 
diff --git a/src/com/android/launcher3/anim/Interpolators.java b/src/com/android/launcher3/anim/Interpolators.java
index 5a46ce1..4ff5d5e 100644
--- a/src/com/android/launcher3/anim/Interpolators.java
+++ b/src/com/android/launcher3/anim/Interpolators.java
@@ -47,13 +47,6 @@
     public static final Interpolator DEACCEL_2_5 = new DecelerateInterpolator(2.5f);
     public static final Interpolator DEACCEL_3 = new DecelerateInterpolator(3f);
 
-    /**
-     * The decelerating emphasized interpolator. Used for hero / emphasized movement of content that
-     * is appearing e.g. when coming from off screen
-     */
-    public static final Interpolator EMPHASIZED_DECELERATE = new PathInterpolator(
-            0.05f, 0.7f, 0.1f, 1f);
-
     public static final Interpolator ACCEL_DEACCEL = new AccelerateDecelerateInterpolator();
 
     public static final Interpolator FAST_OUT_SLOW_IN = new PathInterpolator(0.4f, 0f, 0.2f, 1f);
diff --git a/src/com/android/launcher3/dragndrop/PinShortcutRequestActivityInfo.java b/src/com/android/launcher3/dragndrop/PinShortcutRequestActivityInfo.java
index 29e7c18..f9916d0 100644
--- a/src/com/android/launcher3/dragndrop/PinShortcutRequestActivityInfo.java
+++ b/src/com/android/launcher3/dragndrop/PinShortcutRequestActivityInfo.java
@@ -87,7 +87,8 @@
         // Total duration for the drop animation to complete.
         long duration = mContext.getResources().getInteger(R.integer.config_dropAnimMaxDuration) +
                 LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY +
-                LauncherState.SPRING_LOADED.getTransitionDuration(Launcher.getLauncher(mContext));
+                LauncherState.SPRING_LOADED.getTransitionDuration(Launcher.getLauncher(mContext),
+                        true /* isToState */);
         // Delay the actual accept() call until the drop animation is complete.
         return PinRequestHelper.createWorkspaceItemFromPinItemRequest(
                 mContext, mRequest, duration);
diff --git a/src/com/android/launcher3/statemanager/BaseState.java b/src/com/android/launcher3/statemanager/BaseState.java
index 122573c..4a68dda 100644
--- a/src/com/android/launcher3/statemanager/BaseState.java
+++ b/src/com/android/launcher3/statemanager/BaseState.java
@@ -36,7 +36,7 @@
     /**
      * @return How long the animation to this state should take (or from this state to NORMAL).
      */
-    int getTransitionDuration(Context context);
+    int getTransitionDuration(Context context, boolean isToState);
 
     /**
      * Returns the state to go back to from this state
diff --git a/src/com/android/launcher3/statemanager/StateManager.java b/src/com/android/launcher3/statemanager/StateManager.java
index 1767939..2aa9dde 100644
--- a/src/com/android/launcher3/statemanager/StateManager.java
+++ b/src/com/android/launcher3/statemanager/StateManager.java
@@ -253,8 +253,8 @@
         // Since state mBaseState can be reached from multiple states, just assume that the
         // transition plays in reverse and use the same duration as previous state.
         mConfig.duration = state == mBaseState
-                ? fromState.getTransitionDuration(mActivity)
-                : state.getTransitionDuration(mActivity);
+                ? fromState.getTransitionDuration(mActivity, false /* isToState */)
+                : state.getTransitionDuration(mActivity, true /* isToState */);
         prepareForAtomicAnimation(fromState, state, mConfig);
         AnimatorSet animation = createAnimationToNewWorkspaceInternal(state).buildAnim();
         if (listener != null) {
diff --git a/src/com/android/launcher3/states/HintState.java b/src/com/android/launcher3/states/HintState.java
index 8b52016..4cfced8 100644
--- a/src/com/android/launcher3/states/HintState.java
+++ b/src/com/android/launcher3/states/HintState.java
@@ -43,7 +43,7 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
+    public int getTransitionDuration(Context context, boolean isToState) {
         return 80;
     }
 
diff --git a/src/com/android/launcher3/states/SpringLoadedState.java b/src/com/android/launcher3/states/SpringLoadedState.java
index e311bc8..15cdc20 100644
--- a/src/com/android/launcher3/states/SpringLoadedState.java
+++ b/src/com/android/launcher3/states/SpringLoadedState.java
@@ -39,7 +39,7 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
+    public int getTransitionDuration(Context context, boolean isToState) {
         return 150;
     }
 
diff --git a/src/com/android/launcher3/views/AbstractSlideInView.java b/src/com/android/launcher3/views/AbstractSlideInView.java
index ed31e8d..47503b1 100644
--- a/src/com/android/launcher3/views/AbstractSlideInView.java
+++ b/src/com/android/launcher3/views/AbstractSlideInView.java
@@ -231,13 +231,17 @@
         if (mSwipeDetector.isIdleState()) {
             mOpenCloseAnimator
                     .setDuration(defaultDuration)
-                    .setInterpolator(Interpolators.ACCEL);
+                    .setInterpolator(getIdleInterpolator());
         } else {
             mOpenCloseAnimator.setInterpolator(mScrollInterpolator);
         }
         mOpenCloseAnimator.start();
     }
 
+    protected Interpolator getIdleInterpolator() {
+        return Interpolators.ACCEL;
+    }
+
     protected void onCloseComplete() {
         mIsOpen = false;
         getPopupContainer().removeView(this);
diff --git a/src/com/android/launcher3/widget/BaseWidgetSheet.java b/src/com/android/launcher3/widget/BaseWidgetSheet.java
index b12574f..c7bb612 100644
--- a/src/com/android/launcher3/widget/BaseWidgetSheet.java
+++ b/src/com/android/launcher3/widget/BaseWidgetSheet.java
@@ -44,6 +44,7 @@
 import com.android.launcher3.util.SystemUiController;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.AbstractSlideInView;
+import com.android.launcher3.views.ActivityContext;
 import com.android.launcher3.views.ArrowTipView;
 
 /**
@@ -306,4 +307,11 @@
         return mActivityContext.getSharedPrefs().getBoolean(KEY_WIDGETS_EDUCATION_TIP_SEEN, false)
                 || Utilities.IS_RUNNING_IN_TEST_HARNESS;
     }
+
+    @Override
+    protected void setTranslationShift(float translationShift) {
+        super.setTranslationShift(translationShift);
+        Launcher launcher = ActivityContext.lookupContext(getContext());
+        launcher.onWidgetsTransition(1 - translationShift);
+    }
 }
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 8a435c9..2f8e680 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/states/AllAppsState.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/states/AllAppsState.java
@@ -39,8 +39,8 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
-        return 320;
+    public int getTransitionDuration(Context context, boolean isToState) {
+        return isToState ? 500 : 300;
     }
 
     @Override
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/states/OverviewState.java b/src_ui_overrides/com/android/launcher3/uioverrides/states/OverviewState.java
index d154317..7a228c4 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/states/OverviewState.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/states/OverviewState.java
@@ -34,7 +34,7 @@
     }
 
     @Override
-    public int getTransitionDuration(Context context) {
+    public int getTransitionDuration(Context context, boolean isToState) {
         return 250;
     }