Snap for 7721244 from 81a3e6e7e7f838bdd0e95e8e10badd04f3e32029 to sc-v2-release

Change-Id: I37084fe830ca0a31e7e65d84d8c50a460cda3f51
diff --git a/quickstep/res/values/config.xml b/quickstep/res/values/config.xml
index d67b23b..31c0f5f 100644
--- a/quickstep/res/values/config.xml
+++ b/quickstep/res/values/config.xml
@@ -30,6 +30,7 @@
          determines how many thumbnails will be fetched in the background. -->
     <integer name="recentsThumbnailCacheSize">3</integer>
     <integer name="recentsIconCacheSize">12</integer>
+    <integer name="recentsScrollHapticMinGapMillis">20</integer>
 
     <!-- Assistant Gesture -->
     <integer name="assistant_gesture_min_time_threshold">200</integer>
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarUnfoldAnimationController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarUnfoldAnimationController.java
index 43f015c..978bd47 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarUnfoldAnimationController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarUnfoldAnimationController.java
@@ -77,6 +77,7 @@
         @Override
         public void onTransitionFinished() {
             mMoveFromCenterAnimator.onTransitionFinished();
+            mMoveFromCenterAnimator.clearRegisteredViews();
         }
 
         @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java
index 283743d..ef6f53e 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java
@@ -24,7 +24,7 @@
 import static com.android.launcher3.Utilities.EDGE_NAV_BAR;
 import static com.android.launcher3.anim.AnimatorListeners.forSuccessCallback;
 import static com.android.launcher3.anim.Interpolators.ACCEL_DEACCEL;
-import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;
+import static com.android.quickstep.util.VibratorWrapper.OVERVIEW_HAPTIC;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_OVERVIEW_DISABLED;
 
 import android.animation.ObjectAnimator;
@@ -38,11 +38,11 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.states.StateAnimationConfig;
-import com.android.launcher3.util.VibratorWrapper;
 import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.util.AnimatorControllerWithResistance;
 import com.android.quickstep.util.MotionPauseDetector;
 import com.android.quickstep.util.OverviewToHomeAnim;
+import com.android.quickstep.util.VibratorWrapper;
 import com.android.quickstep.views.RecentsView;
 
 /**
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
index 40c3e02..ff3c517 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
@@ -41,7 +41,7 @@
 import static com.android.launcher3.touch.BothAxesSwipeDetector.DIRECTION_RIGHT;
 import static com.android.launcher3.touch.BothAxesSwipeDetector.DIRECTION_UP;
 import static com.android.launcher3.util.DisplayController.getSingleFrameMs;
-import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;
+import static com.android.quickstep.util.VibratorWrapper.OVERVIEW_HAPTIC;
 import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_HORIZONTAL_OFFSET;
 import static com.android.quickstep.views.RecentsView.CONTENT_ALPHA;
 import static com.android.quickstep.views.RecentsView.FULLSCREEN_PROGRESS;
@@ -67,14 +67,15 @@
 import com.android.launcher3.touch.BaseSwipeDetector;
 import com.android.launcher3.touch.BothAxesSwipeDetector;
 import com.android.launcher3.util.TouchController;
-import com.android.launcher3.util.VibratorWrapper;
 import com.android.quickstep.AnimatedFloat;
 import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.util.AnimatorControllerWithResistance;
 import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.util.MotionPauseDetector;
+import com.android.quickstep.util.VibratorWrapper;
 import com.android.quickstep.util.WorkspaceRevealAnim;
 import com.android.quickstep.views.LauncherRecentsView;
+import com.android.quickstep.views.RecentsView;
 
 /**
  * Handles quick switching to a recent task from the home screen. To give as much flexibility to
@@ -398,6 +399,14 @@
             nonOverviewAnim.setFloatValues(startProgress, endProgress);
             mNonOverviewAnim.dispatchOnStart();
         }
+        if (targetState == QUICK_SWITCH) {
+            // Navigating to quick switch, add scroll feedback since the first time is not
+            // considered a scroll by the RecentsView.
+            VibratorWrapper.INSTANCE.get(mLauncher).vibrate(
+                    RecentsView.SCROLL_VIBRATION_PRIMITIVE,
+                    RecentsView.SCROLL_VIBRATION_PRIMITIVE_SCALE,
+                    RecentsView.SCROLL_VIBRATION_FALLBACK);
+        }
 
         nonOverviewAnim.setDuration(Math.max(xDuration, yDuration));
         mNonOverviewAnim.setEndAction(() -> onAnimationToStateCompleted(targetState));
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java
index 0603ba5..010f463 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java
@@ -22,6 +22,7 @@
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.os.SystemClock;
+import android.os.VibrationEffect;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.animation.Interpolator;
@@ -41,6 +42,7 @@
 import com.android.launcher3.util.TouchController;
 import com.android.launcher3.views.BaseDragLayer;
 import com.android.quickstep.SysUINavigationMode;
+import com.android.quickstep.util.VibratorWrapper;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 
@@ -55,6 +57,12 @@
     private static final long MIN_TASK_DISMISS_ANIMATION_DURATION = 300;
     private static final long MAX_TASK_DISMISS_ANIMATION_DURATION = 600;
 
+    public static final int TASK_DISMISS_VIBRATION_PRIMITIVE =
+            Utilities.ATLEAST_R ? VibrationEffect.Composition.PRIMITIVE_TICK : -1;
+    public static final float TASK_DISMISS_VIBRATION_PRIMITIVE_SCALE = 1f;
+    public static final VibrationEffect TASK_DISMISS_VIBRATION_FALLBACK =
+            VibratorWrapper.EFFECT_TEXTURE_TICK;
+
     protected final T mActivity;
     private final SingleAxisSwipeDetector mDetector;
     private final RecentsView mRecentsView;
@@ -334,10 +342,10 @@
             fling = false;
         }
         PagedOrientationHandler orientationHandler = mRecentsView.getPagedOrientationHandler();
+        boolean goingUp = orientationHandler.isGoingUp(velocity, mIsRtl);
         float progress = mCurrentAnimation.getProgressFraction();
         float interpolatedProgress = mCurrentAnimation.getInterpolatedProgress();
         if (fling) {
-            boolean goingUp = orientationHandler.isGoingUp(velocity, mIsRtl);
             goingToEnd = goingUp == mCurrentAnimationIsGoingUp;
         } else {
             goingToEnd = interpolatedProgress > SUCCESS_TRANSITION_PROGRESS;
@@ -357,6 +365,10 @@
         mCurrentAnimation.startWithVelocity(mActivity, goingToEnd,
                 velocity * orientationHandler.getSecondaryTranslationDirectionFactor(),
                 mEndDisplacement, animationDuration);
+        if (goingUp && goingToEnd) {
+            VibratorWrapper.INSTANCE.get(mActivity).vibrate(TASK_DISMISS_VIBRATION_PRIMITIVE,
+                    TASK_DISMISS_VIBRATION_PRIMITIVE_SCALE, TASK_DISMISS_VIBRATION_FALLBACK);
+        }
     }
 
     private void clearState() {
diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index 830737d..1e841da 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -36,7 +36,6 @@
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 import static com.android.launcher3.util.SystemUiController.UI_STATE_FULLSCREEN_TASK;
-import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;
 import static com.android.quickstep.GestureState.GestureEndTarget.HOME;
 import static com.android.quickstep.GestureState.GestureEndTarget.LAST_TASK;
 import static com.android.quickstep.GestureState.GestureEndTarget.NEW_TASK;
@@ -46,6 +45,7 @@
 import static com.android.quickstep.GestureState.STATE_RECENTS_ANIMATION_CANCELED;
 import static com.android.quickstep.GestureState.STATE_RECENTS_SCROLLING_FINISHED;
 import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
+import static com.android.quickstep.util.VibratorWrapper.OVERVIEW_HAPTIC;
 import static com.android.quickstep.views.RecentsView.UPDATE_SYSUI_FLAGS_THRESHOLD;
 import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME;
@@ -92,7 +92,6 @@
 import com.android.launcher3.tracing.InputConsumerProto;
 import com.android.launcher3.tracing.SwipeHandlerProto;
 import com.android.launcher3.util.TraceHelper;
-import com.android.launcher3.util.VibratorWrapper;
 import com.android.launcher3.util.WindowBounds;
 import com.android.quickstep.BaseActivityInterface.AnimationFactory;
 import com.android.quickstep.GestureState.GestureEndTarget;
@@ -112,6 +111,7 @@
 import com.android.quickstep.util.SwipePipToHomeAnimator;
 import com.android.quickstep.util.TaskViewSimulator;
 import com.android.quickstep.util.TransformParams;
+import com.android.quickstep.util.VibratorWrapper;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.ThumbnailData;
@@ -945,6 +945,7 @@
                 mStateCallback.setState(STATE_SCALED_CONTROLLER_HOME | STATE_CAPTURE_SCREENSHOT);
                 // Notify swipe-to-home (recents animation) is finished
                 SystemUiProxy.INSTANCE.get(mContext).notifySwipeToHomeFinished();
+                LauncherSplitScreenListener.INSTANCE.getNoCreate().notifySwipingToHome();
                 break;
             case RECENTS:
                 mStateCallback.setState(STATE_SCALED_CONTROLLER_RECENTS | STATE_CAPTURE_SCREENSHOT
@@ -1805,8 +1806,13 @@
                 mGestureState.updateLastStartedTaskId(taskId);
                 boolean hasTaskPreviouslyAppeared = mGestureState.getPreviouslyAppearedTaskIds()
                         .contains(taskId);
+                boolean isOldTaskSplit = LauncherSplitScreenListener.INSTANCE.getNoCreate()
+                        .getRunningSplitTaskIds().length > 0;
                 nextTask.launchTask(success -> {
                     resultCallback.accept(success);
+                    if (isOldTaskSplit) {
+                        SystemUiProxy.INSTANCE.getNoCreate().exitSplitScreen(taskId);
+                    }
                     if (success) {
                         if (hasTaskPreviouslyAppeared) {
                             onRestartPreviouslyAppearedTask();
diff --git a/quickstep/src/com/android/quickstep/OverviewCommandHelper.java b/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
index 8fb851c..b232464 100644
--- a/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
+++ b/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
@@ -32,6 +32,7 @@
 import com.android.launcher3.statemanager.StatefulActivity;
 import com.android.launcher3.util.RunnableList;
 import com.android.quickstep.RecentsAnimationCallbacks.RecentsAnimationListener;
+import com.android.quickstep.util.LauncherSplitScreenListener;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.ThumbnailData;
@@ -157,6 +158,7 @@
             }
             if (cmd.type == TYPE_HOME) {
                 mService.startActivity(mOverviewComponentObserver.getHomeIntent());
+                LauncherSplitScreenListener.INSTANCE.getNoCreate().notifySwipingToHome();
                 return true;
             }
         } else {
@@ -175,6 +177,7 @@
                     return launchTask(recents, getNextTask(recents), cmd);
                 case TYPE_HOME:
                     recents.startHome();
+                    LauncherSplitScreenListener.INSTANCE.getNoCreate().notifySwipingToHome();
                     return true;
             }
         }
diff --git a/quickstep/src/com/android/quickstep/SystemUiProxy.java b/quickstep/src/com/android/quickstep/SystemUiProxy.java
index 7d2d413..aea2d4c 100644
--- a/quickstep/src/com/android/quickstep/SystemUiProxy.java
+++ b/quickstep/src/com/android/quickstep/SystemUiProxy.java
@@ -533,10 +533,17 @@
         }
     }
 
-    public void exitSplitScreen() {
+    /**
+     * To be called whenever the user exits out of split screen apps (either by launching another
+     * app or by swiping home)
+     * @param topTaskId The taskId of the new app that was launched. System will then move this task
+     *                  to the front of what the user sees while removing all other split stages.
+     *                  If swiping to home (or there is no task to put at the top), can pass in -1.
+     */
+    public void exitSplitScreen(int topTaskId) {
         if (mSplitScreen != null) {
             try {
-                mSplitScreen.exitSplitScreen();
+                mSplitScreen.exitSplitScreen(topTaskId);
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call exitSplitScreen");
             }
diff --git a/quickstep/src/com/android/quickstep/interaction/EdgeBackGesturePanel.java b/quickstep/src/com/android/quickstep/interaction/EdgeBackGesturePanel.java
index 7465db3..b2b2f59 100644
--- a/quickstep/src/com/android/quickstep/interaction/EdgeBackGesturePanel.java
+++ b/quickstep/src/com/android/quickstep/interaction/EdgeBackGesturePanel.java
@@ -43,7 +43,7 @@
 import com.android.launcher3.R;
 import com.android.launcher3.ResourceUtils;
 import com.android.launcher3.anim.Interpolators;
-import com.android.launcher3.util.VibratorWrapper;
+import com.android.quickstep.util.VibratorWrapper;
 
 /** Forked from platform/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarEdgePanel.java. */
 public class EdgeBackGesturePanel extends View {
diff --git a/quickstep/src/com/android/quickstep/interaction/NavBarGestureHandler.java b/quickstep/src/com/android/quickstep/interaction/NavBarGestureHandler.java
index fc1dd6f..851cccf 100644
--- a/quickstep/src/com/android/quickstep/interaction/NavBarGestureHandler.java
+++ b/quickstep/src/com/android/quickstep/interaction/NavBarGestureHandler.java
@@ -16,7 +16,6 @@
 package com.android.quickstep.interaction;
 
 import static com.android.launcher3.Utilities.squaredHypot;
-import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;
 import static com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureResult.ASSISTANT_COMPLETED;
 import static com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureResult.ASSISTANT_NOT_STARTED_BAD_ANGLE;
 import static com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureResult.ASSISTANT_NOT_STARTED_SWIPE_TOO_SHORT;
@@ -26,6 +25,7 @@
 import static com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureResult.HOME_OR_OVERVIEW_NOT_STARTED_WRONG_SWIPE_DIRECTION;
 import static com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureResult.OVERVIEW_GESTURE_COMPLETED;
 import static com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureResult.OVERVIEW_NOT_STARTED_TOO_FAR_FROM_EDGE;
+import static com.android.quickstep.util.VibratorWrapper.OVERVIEW_HAPTIC;
 
 import android.animation.ValueAnimator;
 import android.content.Context;
@@ -47,11 +47,11 @@
 import com.android.launcher3.R;
 import com.android.launcher3.ResourceUtils;
 import com.android.launcher3.anim.Interpolators;
-import com.android.launcher3.util.VibratorWrapper;
 import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.util.MotionPauseDetector;
 import com.android.quickstep.util.NavBarPosition;
 import com.android.quickstep.util.TriggerSwipeUpTouchTracker;
+import com.android.quickstep.util.VibratorWrapper;
 import com.android.systemui.shared.system.QuickStepContract;
 
 /** Utility class to handle Home and Assistant gestures. */
diff --git a/quickstep/src/com/android/quickstep/util/LauncherSplitScreenListener.java b/quickstep/src/com/android/quickstep/util/LauncherSplitScreenListener.java
index 0f4ed01..fa4cddc 100644
--- a/quickstep/src/com/android/quickstep/util/LauncherSplitScreenListener.java
+++ b/quickstep/src/com/android/quickstep/util/LauncherSplitScreenListener.java
@@ -44,8 +44,6 @@
             if (frozen) {
                 mPersistentGroupedIds = getRunningSplitTaskIds();
             } else {
-                // TODO(b/198310766) Need to also explicitly exit split screen if
-                //  we're not currently viewing split screened apps
                 mPersistentGroupedIds = EMPTY_ARRAY;
             }
         }
@@ -53,8 +51,11 @@
 
     /**
      * Gets set to current split taskIDs whenever the task list is frozen, and set to empty array
-     * whenever task list unfreezes.
-     * When not null, this indicates that we need to load a GroupedTaskView as the most recent
+     * whenever task list unfreezes. This also gets set to empty array whenever the user swipes to
+     * home - in that case the task list does not unfreeze immediately after the gesture, so it's
+     * done via {@link #notifySwipingToHome()}.
+     *
+     * When not empty, this indicates that we need to load a GroupedTaskView as the most recent
      * page, so user can quickswitch back to a grouped task.
      */
     private int[] mPersistentGroupedIds;
@@ -140,6 +141,18 @@
         }
     }
 
+    /** Notifies SystemUi to remove any split screen state */
+    public void notifySwipingToHome() {
+        boolean hasSplitTasks = LauncherSplitScreenListener.INSTANCE.getNoCreate()
+                .getPersistentSplitIds().length > 0;
+        if (!hasSplitTasks) {
+            return;
+        }
+
+        SystemUiProxy.INSTANCE.getNoCreate().exitSplitScreen(-1);
+        mPersistentGroupedIds = EMPTY_ARRAY;
+    }
+
     private void resetTaskId(StagedSplitTaskPosition taskPosition) {
         taskPosition.taskId = -1;
     }
diff --git a/src/com/android/launcher3/util/VibratorWrapper.java b/quickstep/src/com/android/quickstep/util/VibratorWrapper.java
similarity index 65%
rename from src/com/android/launcher3/util/VibratorWrapper.java
rename to quickstep/src/com/android/quickstep/util/VibratorWrapper.java
index b0defd4..211bd08 100644
--- a/src/com/android/launcher3/util/VibratorWrapper.java
+++ b/quickstep/src/com/android/quickstep/util/VibratorWrapper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2019 The Android Open Source Project
+ * Copyright (C) 2021 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.
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package com.android.launcher3.util;
+package com.android.quickstep.util;
 
 import static android.os.VibrationEffect.createPredefined;
 import static android.provider.Settings.System.HAPTIC_FEEDBACK_ENABLED;
@@ -21,15 +21,20 @@
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 
+import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.database.ContentObserver;
+import android.media.AudioAttributes;
 import android.os.Build;
 import android.os.VibrationEffect;
 import android.os.Vibrator;
 import android.provider.Settings;
 
+import com.android.launcher3.Utilities;
+import com.android.launcher3.util.MainThreadInitializedObject;
+
 /**
  * Wrapper around {@link Vibrator} to easily perform haptic feedback where necessary.
  */
@@ -39,8 +44,15 @@
     public static final MainThreadInitializedObject<VibratorWrapper> INSTANCE =
             new MainThreadInitializedObject<>(VibratorWrapper::new);
 
+    public static final AudioAttributes VIBRATION_ATTRS = new AudioAttributes.Builder()
+            .setUsage(AudioAttributes.USAGE_ASSISTANCE_SONIFICATION)
+            .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
+            .build();
+
     public static final VibrationEffect EFFECT_CLICK =
             createPredefined(VibrationEffect.EFFECT_CLICK);
+    public static final VibrationEffect EFFECT_TEXTURE_TICK =
+            VibrationEffect.createPredefined(VibrationEffect.EFFECT_TEXTURE_TICK);
 
     /**
      * Haptic when entering overview.
@@ -78,7 +90,27 @@
     /** Vibrates with the given effect if haptic feedback is available and enabled. */
     public void vibrate(VibrationEffect vibrationEffect) {
         if (mHasVibrator && mIsHapticFeedbackEnabled) {
-            UI_HELPER_EXECUTOR.execute(() -> mVibrator.vibrate(vibrationEffect));
+            UI_HELPER_EXECUTOR.execute(() -> mVibrator.vibrate(vibrationEffect, VIBRATION_ATTRS));
+        }
+    }
+
+    /**
+     * Vibrates with a single primitive, if supported, or use a fallback effect instead. This only
+     * vibrates if haptic feedback is available and enabled.
+     */
+    @SuppressLint("NewApi")
+    public void vibrate(int primitiveId, float primitiveScale, VibrationEffect fallbackEffect) {
+        if (mHasVibrator && mIsHapticFeedbackEnabled) {
+            UI_HELPER_EXECUTOR.execute(() -> {
+                if (Utilities.ATLEAST_R && primitiveId >= 0
+                        && mVibrator.areAllPrimitivesSupported(primitiveId)) {
+                    mVibrator.vibrate(VibrationEffect.startComposition()
+                            .addPrimitive(primitiveId, primitiveScale)
+                            .compose(), VIBRATION_ATTRS);
+                } else {
+                    mVibrator.vibrate(fallbackEffect, VIBRATION_ATTRS);
+                }
+            });
         }
     }
 }
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index e85adcc..dd470e8 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -79,7 +79,9 @@
 import android.graphics.drawable.Drawable;
 import android.os.Build;
 import android.os.Bundle;
+import android.os.SystemClock;
 import android.os.UserHandle;
+import android.os.VibrationEffect;
 import android.text.Layout;
 import android.text.StaticLayout;
 import android.text.TextPaint;
@@ -160,6 +162,7 @@
 import com.android.quickstep.util.SurfaceTransactionApplier;
 import com.android.quickstep.util.TaskViewSimulator;
 import com.android.quickstep.util.TransformParams;
+import com.android.quickstep.util.VibratorWrapper;
 import com.android.systemui.plugins.ResourceProvider;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.recents.model.Task.TaskKey;
@@ -244,6 +247,12 @@
                 }
             };
 
+    public static final int SCROLL_VIBRATION_PRIMITIVE =
+            Utilities.ATLEAST_S ? VibrationEffect.Composition.PRIMITIVE_LOW_TICK : -1;
+    public static final float SCROLL_VIBRATION_PRIMITIVE_SCALE = 0.6f;
+    public static final VibrationEffect SCROLL_VIBRATION_FALLBACK =
+            VibratorWrapper.EFFECT_TEXTURE_TICK;
+
     /**
      * Can be used to tint the color of the RecentsView to simulate a scrim that can views
      * excluded from. Really should be a proper scrim.
@@ -397,6 +406,7 @@
 
     protected final ACTIVITY_TYPE mActivity;
     private final float mFastFlingVelocity;
+    private final int mScrollHapticMinGapMillis;
     private final RecentsModel mModel;
     private final int mGridSideMargin;
     private final ClearAllButton mClearAllButton;
@@ -443,6 +453,7 @@
     private ObjectAnimator mTintingAnimator;
 
     private int mOverScrollShift = 0;
+    private long mScrollLastHapticTimestamp;
 
     /**
      * TODO: Call reloadIdNeeded in onTaskStackChanged.
@@ -629,6 +640,8 @@
         final int rotation = mActivity.getDisplay().getRotation();
         mOrientationState.setRecentsRotation(rotation);
 
+        mScrollHapticMinGapMillis = getResources()
+                .getInteger(R.integer.recentsScrollHapticMinGapMillis);
         mFastFlingVelocity = getResources()
                 .getDimensionPixelSize(R.dimen.recents_fast_fling_velocity);
         mModel = RecentsModel.INSTANCE.get(context);
@@ -1229,6 +1242,25 @@
     }
 
     @Override
+    protected void onEdgeAbsorbingScroll() {
+        vibrateForScroll();
+    }
+
+    @Override
+    protected void onScrollOverPageChanged() {
+        vibrateForScroll();
+    }
+
+    private void vibrateForScroll() {
+        long now = SystemClock.uptimeMillis();
+        if (now - mScrollLastHapticTimestamp > mScrollHapticMinGapMillis) {
+            mScrollLastHapticTimestamp = now;
+            VibratorWrapper.INSTANCE.get(mContext).vibrate(SCROLL_VIBRATION_PRIMITIVE,
+                    SCROLL_VIBRATION_PRIMITIVE_SCALE, SCROLL_VIBRATION_FALLBACK);
+        }
+    }
+
+    @Override
     protected void determineScrollingStart(MotionEvent ev, float touchSlopScale) {
         // Enables swiping to the left or right only if the task overlay is not modal.
         if (!isModal()) {
@@ -2002,9 +2034,6 @@
     /**
      * Called only when a swipe-up gesture from an app has completed. Only called after
      * {@link #onGestureAnimationStart} and {@link #onGestureAnimationEnd()}.
-     *
-     * TODO(b/198310766) Need to also explicitly exit split screen if
-     *  the swipe up was to home
      */
     public void onSwipeUpAnimationSuccess() {
         animateUpTaskIconScale();
diff --git a/quickstep/src/com/android/quickstep/views/TaskView.java b/quickstep/src/com/android/quickstep/views/TaskView.java
index b650c95..7c558c2 100644
--- a/quickstep/src/com/android/quickstep/views/TaskView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskView.java
@@ -99,6 +99,7 @@
 import com.android.quickstep.TaskUtils;
 import com.android.quickstep.TaskViewUtils;
 import com.android.quickstep.util.CancellableTask;
+import com.android.quickstep.util.LauncherSplitScreenListener;
 import com.android.quickstep.util.RecentsOrientedState;
 import com.android.quickstep.util.TaskCornerRadius;
 import com.android.quickstep.util.TransformParams;
@@ -693,8 +694,13 @@
             TestLogging.recordEvent(
                     TestProtocol.SEQUENCE_MAIN, "startActivityFromRecentsAsync", mTask);
             ActivityOptionsWrapper opts =  mActivity.getActivityLaunchOptions(this, null);
+            boolean isOldTaskSplit = LauncherSplitScreenListener.INSTANCE.getNoCreate()
+                    .getPersistentSplitIds().length > 0;
             if (ActivityManagerWrapper.getInstance()
                     .startActivityFromRecents(mTask.key, opts.options)) {
+                if (isOldTaskSplit) {
+                    SystemUiProxy.INSTANCE.getNoCreate().exitSplitScreen(mTask.key.id);
+                }
                 RecentsView recentsView = getRecentsView();
                 if (ENABLE_QUICKSTEP_LIVE_TILE.get() && recentsView.getRunningTaskViewId() != -1) {
                     recentsView.onTaskLaunchedInLiveTileMode();
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index 2f9b5af..108091c 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -108,6 +108,8 @@
     // relative scroll position unchanged in updateCurrentPageScroll. Cleared when snapping to a
     // page.
     protected int mCurrentPageScrollDiff;
+    // The current page the PagedView is scrolling over on it's way to the destination page.
+    protected int mCurrentScrollOverPage;
 
     @ViewDebug.ExportedProperty(category = "launcher")
     protected int mNextPage = INVALID_PAGE;
@@ -180,6 +182,7 @@
 
         mScroller = new OverScroller(context, SCROLL);
         mCurrentPage = 0;
+        mCurrentScrollOverPage = 0;
 
         final ViewConfiguration configuration = ViewConfiguration.get(context);
         mTouchSlop = configuration.getScaledTouchSlop();
@@ -437,6 +440,7 @@
         }
         int prevPage = overridePrevPage != INVALID_PAGE ? overridePrevPage : mCurrentPage;
         mCurrentPage = validateNewPage(currentPage);
+        mCurrentScrollOverPage = mCurrentPage;
         updateCurrentPageScroll();
         notifyPageSwitchListener(prevPage);
         invalidate();
@@ -557,9 +561,11 @@
                 if (newPos < mMinScroll && oldPos >= mMinScroll) {
                     mEdgeGlowLeft.onAbsorb((int) mScroller.getCurrVelocity());
                     mScroller.abortAnimation();
+                    onEdgeAbsorbingScroll();
                 } else if (newPos > mMaxScroll && oldPos <= mMaxScroll) {
                     mEdgeGlowRight.onAbsorb((int) mScroller.getCurrVelocity());
                     mScroller.abortAnimation();
+                    onEdgeAbsorbingScroll();
                 }
             }
 
@@ -577,6 +583,7 @@
             sendScrollAccessibilityEvent();
             int prevPage = mCurrentPage;
             mCurrentPage = validateNewPage(mNextPage);
+            mCurrentScrollOverPage = mCurrentPage;
             mNextPage = INVALID_PAGE;
             notifyPageSwitchListener(prevPage);
 
@@ -766,7 +773,8 @@
                 childStart += primaryDimension + getChildGap();
 
                 // This makes sure that the space is added after the page, not after each panel
-                if (i % panelCount == panelCount - 1) {
+                int lastPanel = mIsRtl ? 0 : panelCount - 1;
+                if (i % panelCount == lastPanel) {
                     childStart += mPageSpacing;
                 }
             }
@@ -837,6 +845,7 @@
     public void onViewRemoved(View child) {
         super.onViewRemoved(child);
         mCurrentPage = validateNewPage(mCurrentPage);
+        mCurrentScrollOverPage = mCurrentPage;
         dispatchPageCountChanged();
     }
 
@@ -1408,6 +1417,20 @@
 
     protected void onNotSnappingToPageInFreeScroll() { }
 
+    /**
+     * Called when the view edges absorb part of the scroll. Subclasses can override this
+     * to provide custom behavior during animation.
+     */
+    protected void onEdgeAbsorbingScroll() {
+    }
+
+    /**
+     * Called when the current page closest to the center of the screen changes as part of the
+     * scroll. Subclasses can override this to provide custom behavior during scroll.
+     */
+    protected void onScrollOverPageChanged() {
+    }
+
     protected boolean shouldFlingForVelocity(int velocity) {
         float threshold = mAllowEasyFling ? mEasyFlingThresholdVelocity : mFlingThresholdVelocity;
         return Math.abs(velocity) > threshold;
@@ -1553,7 +1576,7 @@
         return getDisplacementFromScreenCenter(childIndex, screenCenter);
     }
 
-    private int getScreenCenter(int primaryScroll) {
+    protected int getScreenCenter(int primaryScroll) {
         float primaryScale = mOrientationHandler.getPrimaryScale(this);
         float primaryPivot =  mOrientationHandler.getPrimaryValue(getPivotX(), getPivotY());
         int pageOrientationSize = mOrientationHandler.getMeasuredSize(this);
@@ -1692,6 +1715,15 @@
     }
 
     @Override
+    protected void onScrollChanged(int l, int t, int oldl, int oldt) {
+        int newDestinationPage = getDestinationPage();
+        if (newDestinationPage >= 0 && newDestinationPage != mCurrentScrollOverPage) {
+            mCurrentScrollOverPage = newDestinationPage;
+            onScrollOverPageChanged();
+        }
+    }
+
+    @Override
     public CharSequence getAccessibilityClassName() {
         // Some accessibility services have special logic for ScrollView. Since we provide same
         // accessibility info as ScrollView, inform the service to handle use the same way.
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index a21c8e3..9a3da53 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -338,15 +338,17 @@
         int paddingBottom = grid.cellLayoutBottomPaddingPx;
 
         int panelCount = getPanelCount();
+        int rightPanelModulus = mIsRtl ? 0 : panelCount - 1;
+        int leftPanelModulus = mIsRtl ? panelCount - 1 : 0;
         int numberOfScreens = mScreenOrder.size();
         for (int i = 0; i < numberOfScreens; i++) {
             int paddingLeft = paddingLeftRight;
             int paddingRight = paddingLeftRight;
             if (panelCount > 1) {
-                if (i % panelCount == 0) { // left side panel
+                if (i % panelCount == leftPanelModulus) {
                     paddingLeft = paddingLeftRight;
                     paddingRight = 0;
-                } else if (i % panelCount == panelCount - 1) { // right side panel
+                } else if (i % panelCount == rightPanelModulus) {
                     paddingLeft = 0;
                     paddingRight = paddingLeftRight;
                 } else { // middle panel
@@ -2453,21 +2455,32 @@
         }
 
         int nextPage = getNextPage();
-        if (layout == null && !isPageInTransition()) {
-            layout = verifyInsidePage(nextPage + (mIsRtl ? 1 : -1), Math.min(centerX, d.x), d.y);
+        IntSet pageIndexesToVerify = IntSet.wrap(nextPage - 1, nextPage + 1);
+        if (isTwoPanelEnabled()) {
+            // If two panel is enabled, users can also drag items to nextPage + 2
+            pageIndexesToVerify.add(nextPage + 2);
         }
 
-        if (layout == null && !isPageInTransition()) {
-            layout = verifyInsidePage(nextPage + (mIsRtl ? -1 : 1), Math.max(centerX, d.x), d.y);
+        int touchX = (int) Math.min(centerX, d.x);
+        int touchY = d.y;
+
+        // Go through the pages and check if the dragged item is inside one of them
+        for (int pageIndex : pageIndexesToVerify) {
+            if (layout != null || isPageInTransition()) {
+                break;
+            }
+            layout = verifyInsidePage(pageIndex, touchX, touchY);
         }
 
-        // If two panel is enabled, users can also drag items to currentPage + 2
-        if (isTwoPanelEnabled() && layout == null && !isPageInTransition()) {
-            layout = verifyInsidePage(nextPage + (mIsRtl ? -2 : 2), Math.max(centerX, d.x), d.y);
-        }
-
-        // Always pick the current page.
+        // If the dragged item isn't located in one of the pages above, the icon will stay on the
+        // current screen. For two panel pick the closest panel on the current screen,
+        // on one panel just choose the current page.
         if (layout == null && nextPage >= 0 && nextPage < getPageCount()) {
+            if (isTwoPanelEnabled()) {
+                nextPage = getScreenCenter(getScrollX()) > touchX
+                        ? (mIsRtl ? nextPage + 1 : nextPage) // left side
+                        : (mIsRtl ? nextPage : nextPage + 1); // right side
+            }
             layout = (CellLayout) getChildAt(nextPage);
         }
         if (layout != mDragTargetLayout) {
diff --git a/src/com/android/launcher3/model/DeviceGridState.java b/src/com/android/launcher3/model/DeviceGridState.java
index 761053d..1076e88 100644
--- a/src/com/android/launcher3/model/DeviceGridState.java
+++ b/src/com/android/launcher3/model/DeviceGridState.java
@@ -28,6 +28,7 @@
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.logging.StatsLogManager.LauncherEvent;
+import com.android.launcher3.util.IntSet;
 
 import java.util.Locale;
 import java.util.Objects;
@@ -44,6 +45,7 @@
     public static final int TYPE_PHONE = 0;
     public static final int TYPE_MULTI_DISPLAY = 1;
     public static final int TYPE_TABLET = 2;
+    public static final IntSet COMPATIBLE_TYPES = IntSet.wrap(TYPE_PHONE, TYPE_MULTI_DISPLAY);
 
     private final String mGridSizeString;
     private final int mNumHotseat;
@@ -109,7 +111,9 @@
         if (o == null || getClass() != o.getClass()) return false;
         DeviceGridState that = (DeviceGridState) o;
         return mNumHotseat == that.mNumHotseat
-                && mDeviceType == that.mDeviceType
+                && (mDeviceType == that.mDeviceType
+                    || (COMPATIBLE_TYPES.contains(mDeviceType)
+                        && COMPATIBLE_TYPES.contains(that.mDeviceType)))
                 && Objects.equals(mGridSizeString, that.mGridSizeString);
     }
 }
diff --git a/src/com/android/launcher3/settings/DeveloperOptionsFragment.java b/src/com/android/launcher3/settings/DeveloperOptionsFragment.java
index 4d63218..b06b8a1 100644
--- a/src/com/android/launcher3/settings/DeveloperOptionsFragment.java
+++ b/src/com/android/launcher3/settings/DeveloperOptionsFragment.java
@@ -20,6 +20,7 @@
 import static android.view.View.GONE;
 import static android.view.View.VISIBLE;
 
+import static com.android.launcher3.settings.SettingsActivity.EXTRA_FRAGMENT_ARG_KEY;
 import static com.android.launcher3.uioverrides.plugins.PluginManagerWrapper.PLUGIN_CHANGED;
 import static com.android.launcher3.uioverrides.plugins.PluginManagerWrapper.pluginEnabledKey;
 
@@ -29,6 +30,7 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.net.Uri;
@@ -44,6 +46,7 @@
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.EditText;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -57,12 +60,15 @@
 import androidx.preference.SwitchPreference;
 
 import com.android.launcher3.R;
+import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.config.FlagTogglerPrefUi;
 import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
+import com.android.launcher3.util.OnboardingPrefs;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 import java.util.stream.Collectors;
 
@@ -104,6 +110,7 @@
         initFlags();
         loadPluginPrefs();
         maybeAddSandboxCategory();
+        addOnboardingPrefsCatergory();
 
         if (getActivity() != null) {
             getActivity().setTitle("Developer Options");
@@ -153,6 +160,15 @@
             }
         });
 
+        if (getArguments() != null) {
+            String filter = getArguments().getString(EXTRA_FRAGMENT_ARG_KEY);
+            // Normally EXTRA_FRAGMENT_ARG_KEY is used to highlight the preference with the given
+            // key. This is a slight variation where we instead filter by the human-readable titles.
+            if (filter != null) {
+                filterBox.setText(filter);
+            }
+        }
+
         View listView = getListView();
         final int bottomPadding = listView.getPaddingBottom();
         listView.setOnApplyWindowInsetsListener((v, insets) -> {
@@ -355,6 +371,28 @@
         sandboxCategory.addPreference(launchSandboxModeTutorialPreference);
     }
 
+    private void addOnboardingPrefsCatergory() {
+        PreferenceCategory onboardingCategory = newCategory("Onboarding Flows");
+        onboardingCategory.setSummary("Reset these if you want to see the education again.");
+        for (Map.Entry<String, String[]> titleAndKeys : OnboardingPrefs.ALL_PREF_KEYS.entrySet()) {
+            String title = titleAndKeys.getKey();
+            String[] keys = titleAndKeys.getValue();
+            Preference onboardingPref = new Preference(getContext());
+            onboardingPref.setTitle(title);
+            onboardingPref.setSummary("Tap to reset");
+            onboardingPref.setOnPreferenceClickListener(preference -> {
+                SharedPreferences.Editor sharedPrefsEdit = Utilities.getPrefs(getContext()).edit();
+                for (String key : keys) {
+                    sharedPrefsEdit.remove(key);
+                }
+                sharedPrefsEdit.apply();
+                Toast.makeText(getContext(), "Reset " + title, Toast.LENGTH_SHORT).show();
+                return true;
+            });
+            onboardingCategory.addPreference(onboardingPref);
+        }
+    }
+
     private String toName(String action) {
         String str = action.replace("com.android.systemui.action.PLUGIN_", "")
                 .replace("com.android.launcher3.action.PLUGIN_", "");
diff --git a/src/com/android/launcher3/util/OnboardingPrefs.java b/src/com/android/launcher3/util/OnboardingPrefs.java
index cf1467a..5ba0d30 100644
--- a/src/com/android/launcher3/util/OnboardingPrefs.java
+++ b/src/com/android/launcher3/util/OnboardingPrefs.java
@@ -39,6 +39,14 @@
     public static final String SEARCH_EDU_SEEN = "launcher.search_edu_seen";
     public static final String SEARCH_SNACKBAR_COUNT = "launcher.keyboard_snackbar_count";
     public static final String TASKBAR_EDU_SEEN = "launcher.taskbar_edu_seen";
+    // When adding a new key, add it here as well, to be able to reset it from Developer Options.
+    public static final Map<String, String[]> ALL_PREF_KEYS = Map.of(
+            "All Apps Bounce", new String[] { HOME_BOUNCE_SEEN, HOME_BOUNCE_COUNT },
+            "Hybrid Hotseat Education", new String[] { HOTSEAT_DISCOVERY_TIP_COUNT,
+                    HOTSEAT_LONGPRESS_TIP_SEEN },
+            "Search Education", new String[] { SEARCH_EDU_SEEN, SEARCH_SNACKBAR_COUNT },
+            "Taskbar Education", new String[] { TASKBAR_EDU_SEEN }
+    );
 
     /**
      * Events that either have happened or have not (booleans).