Merge changes from topic "grid-size-migration" into ub-launcher3-rvc-dev

* changes:
  fix GridBackupTableTest in comply with grid size migration
  Turn on V2 migration algorithm feature flag
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java
index 9309110..5abbd86 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java
@@ -208,7 +208,6 @@
             float alpha;
             float cornerRadius = 0f;
             float scale = Math.max(mCurrentRect.width(), mTargetRect.width()) / crop.width();
-            int layer = RemoteAnimationProvider.getLayer(app, mBoostModeTargetLayers);
             if (app.mode == params.mTargetSet.targetMode) {
                 alpha = mTaskAlphaCallback.getAlpha(app, params.mTargetAlpha);
                 if (app.activityType != RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
@@ -245,13 +244,11 @@
                 alpha = mBaseAlphaCallback.getAlpha(app, progress);
                 if (ENABLE_QUICKSTEP_LIVE_TILE.get() && params.mLauncherOnTop) {
                     crop = null;
-                    layer = Integer.MAX_VALUE;
                 }
             }
             builder.withAlpha(alpha)
                     .withMatrix(mTmpMatrix)
                     .withWindowCrop(crop)
-                    .withLayer(layer)
                     // Since radius is in Surface space, but we draw the rounded corners in screen
                     // space, we have to undo the scale
                     .withCornerRadius(cornerRadius / scale);
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskMenuView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskMenuView.java
index 80022b4..9b47520 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskMenuView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskMenuView.java
@@ -40,6 +40,7 @@
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.anim.RoundedRectRevealOutlineProvider;
 import com.android.launcher3.popup.SystemShortcut;
+import com.android.launcher3.touch.PagedOrientationHandler;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.BaseDragLayer;
 import com.android.quickstep.TaskOverlayFactory;
@@ -150,9 +151,26 @@
         return (type & TYPE_TASK_MENU) != 0;
     }
 
-    public void setPosition(float x, float y) {
-        setX(x);
-        setY(y + mThumbnailTopMargin);
+    public void setPosition(float x, float y, PagedOrientationHandler pagedOrientationHandler) {
+        float adjustedY = y + mThumbnailTopMargin;
+        // Changing pivot to make computations easier
+        // NOTE: Changing the pivots means the rotated view gets rotated about the new pivots set,
+        // which would render the X and Y position set here incorrect
+        setPivotX(0);
+        setPivotY(0);
+        setRotation(pagedOrientationHandler.getDegreesRotated());
+        setX(pagedOrientationHandler.getTaskMenuX(x, mTaskView.getThumbnail()));
+        setY(pagedOrientationHandler.getTaskMenuY(adjustedY, mTaskView.getThumbnail()));
+    }
+
+    public void onRotationChanged() {
+        if (mOpenCloseAnimator != null && mOpenCloseAnimator.isRunning()) {
+            mOpenCloseAnimator.end();
+        }
+        if (mIsOpen) {
+            mOptionLayout.removeAllViews();
+            populateAndLayoutMenu();
+        }
     }
 
     public static TaskMenuView showForTask(TaskView taskView) {
@@ -168,12 +186,16 @@
         }
         mActivity.getDragLayer().addView(this);
         mTaskView = taskView;
-        addMenuOptions(mTaskView);
-        orientAroundTaskView(mTaskView);
+        populateAndLayoutMenu();
         post(this::animateOpen);
         return true;
     }
 
+    private void populateAndLayoutMenu() {
+        addMenuOptions(mTaskView);
+        orientAroundTaskView(mTaskView);
+    }
+
     private void addMenuOptions(TaskView taskView) {
         Drawable icon = taskView.getTask().icon.getConstantState().newDrawable();
         mTaskIcon.setDrawable(icon);
@@ -200,21 +222,26 @@
                 R.layout.task_view_menu_option, this, false);
         menuOption.setIconAndLabelFor(
                 menuOptionView.findViewById(R.id.icon), menuOptionView.findViewById(R.id.text));
+        LayoutParams lp = (LayoutParams) menuOptionView.getLayoutParams();
+        mTaskView.getPagedOrientationHandler().setLayoutParamsForTaskMenuOptionItem(lp);
         menuOptionView.setOnClickListener(menuOption);
         mOptionLayout.addView(menuOptionView);
     }
 
     private void orientAroundTaskView(TaskView taskView) {
+        PagedOrientationHandler orientationHandler = taskView.getPagedOrientationHandler();
         measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
         mActivity.getDragLayer().getDescendantRectRelativeToSelf(taskView, sTempRect);
         Rect insets = mActivity.getDragLayer().getInsets();
         BaseDragLayer.LayoutParams params = (BaseDragLayer.LayoutParams) getLayoutParams();
-        params.width = taskView.getMeasuredWidth();
+        params.width = orientationHandler.getTaskMenuWidth(taskView.getThumbnail());
         params.gravity = Gravity.START;
         setLayoutParams(params);
         setScaleX(taskView.getScaleX());
         setScaleY(taskView.getScaleY());
-        setPosition(sTempRect.left - insets.left, sTempRect.top - insets.top);
+        mOptionLayout.setOrientation(orientationHandler.getTaskMenuLayoutOrientation());
+        setPosition(sTempRect.left - insets.left, sTempRect.top - insets.top,
+            taskView.getPagedOrientationHandler());
     }
 
     private void animateOpen() {
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java
index 12ef521..3cd2b32 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java
@@ -473,6 +473,7 @@
         int iconRotation = orientationState.getTouchRotation();
         PagedOrientationHandler orientationHandler = orientationState.getOrientationHandler();
         boolean isRtl = orientationHandler.getRecentsRtlSetting(getResources());
+        LayoutParams snapshotParams = (LayoutParams) mSnapshotView.getLayoutParams();
         int thumbnailPadding = (int) getResources().getDimension(R.dimen.task_thumbnail_top_margin);
         LayoutParams iconParams = (LayoutParams) mIconView.getLayoutParams();
         int rotation = orientationState.getTouchRotationDegrees();
@@ -480,7 +481,8 @@
             case Surface.ROTATION_90:
                 iconParams.gravity = (isRtl ? END : START) | CENTER_VERTICAL;
                 iconParams.rightMargin = -thumbnailPadding;
-                iconParams.leftMargin = iconParams.topMargin = iconParams.bottomMargin = 0;
+                iconParams.leftMargin = 0;
+                iconParams.topMargin = snapshotParams.topMargin / 2;
                 break;
             case Surface.ROTATION_180:
                 iconParams.gravity = BOTTOM | CENTER_HORIZONTAL;
@@ -490,17 +492,21 @@
             case Surface.ROTATION_270:
                 iconParams.gravity = (isRtl ? END : START) | CENTER_VERTICAL;
                 iconParams.leftMargin = -thumbnailPadding;
-                iconParams.rightMargin = iconParams.topMargin = iconParams.bottomMargin = 0;
+                iconParams.rightMargin = 0;
+                iconParams.topMargin = snapshotParams.topMargin / 2;
                 break;
             case Surface.ROTATION_0:
             default:
                 iconParams.gravity = TOP | CENTER_HORIZONTAL;
-                iconParams.leftMargin = iconParams.topMargin = iconParams.rightMargin =
-                    iconParams.bottomMargin = 0;
+                iconParams.leftMargin = iconParams.topMargin = iconParams.rightMargin = 0;
                 break;
         }
         mIconView.setLayoutParams(iconParams);
         mIconView.setRotation(rotation);
+
+        if (mMenuView != null) {
+            mMenuView.onRotationChanged();
+        }
     }
 
     private void setIconAndDimTransitionProgress(float progress, boolean invert) {
@@ -607,7 +613,10 @@
         }
 
         if (mMenuView != null) {
-            mMenuView.setPosition(getX() - getRecentsView().getScrollX(), getY());
+            PagedOrientationHandler pagedOrientationHandler = getPagedOrientationHandler();
+            RecentsView recentsView = getRecentsView();
+            mMenuView.setPosition(getX() - recentsView.getScrollX(),
+                    getY() - recentsView.getScrollY(), pagedOrientationHandler);
             mMenuView.setScaleX(getScaleX());
             mMenuView.setScaleY(getScaleY());
         }
@@ -932,6 +941,10 @@
         return (RecentsView) getParent();
     }
 
+    PagedOrientationHandler getPagedOrientationHandler() {
+        return getRecentsView().mOrientationState.getOrientationHandler();
+    }
+
     public void notifyTaskLaunchFailed(String tag) {
         String msg = "Failed to launch task";
         if (mTask != null) {
diff --git a/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java b/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
index 70cbd82..1cb0aa4 100644
--- a/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
+++ b/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
@@ -611,7 +611,6 @@
                                 .withWindowCrop(target.screenSpaceBounds)
                                 .withAlpha(1f);
                     }
-                    builder.withLayer(RemoteAnimationProvider.getLayer(target, MODE_OPENING));
                     params[i] = builder.build();
                 }
                 surfaceApplier.scheduleApply(params);
@@ -718,7 +717,6 @@
                     params[i] = new SurfaceParams.Builder(target.leash)
                             .withAlpha(1f)
                             .withWindowCrop(target.screenSpaceBounds)
-                            .withLayer(RemoteAnimationProvider.getLayer(target, MODE_OPENING))
                             .withCornerRadius(cornerRadius)
                             .build();
                 }
@@ -775,7 +773,6 @@
                     }
                     params[i] = builder
                             .withWindowCrop(target.screenSpaceBounds)
-                            .withLayer(RemoteAnimationProvider.getLayer(target, MODE_CLOSING))
                             .build();
                 }
                 surfaceApplier.scheduleApply(params);
diff --git a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java
index d58ab5d..ff98701 100644
--- a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java
+++ b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java
@@ -22,6 +22,7 @@
 
 import com.android.launcher3.R;
 import com.android.quickstep.interaction.EdgeBackGestureHandler.BackGestureResult;
+import com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureResult;
 
 /** A {@link TutorialController} for the Back tutorial. */
 final class BackGestureTutorialController extends TutorialController {
@@ -114,4 +115,13 @@
                 break;
         }
     }
+
+    @Override
+    public void onNavBarGestureAttempted(NavBarGestureResult result) {
+        if (mTutorialType == BACK_NAVIGATION_COMPLETE) {
+            if (result == NavBarGestureResult.HOME_GESTURE_COMPLETED) {
+                mTutorialFragment.closeTutorial();
+            }
+        }
+    }
 }
diff --git a/quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java b/quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java
index 0bf996d..95b3c79 100644
--- a/quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java
+++ b/quickstep/src/com/android/quickstep/interaction/HomeGestureTutorialController.java
@@ -21,6 +21,7 @@
 
 import com.android.launcher3.R;
 import com.android.quickstep.interaction.EdgeBackGestureHandler.BackGestureResult;
+import com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureResult;
 
 /** A {@link TutorialController} for the Home tutorial. */
 final class HomeGestureTutorialController extends TutorialController {
@@ -82,4 +83,21 @@
                 break;
         }
     }
+
+    @Override
+    public void onNavBarGestureAttempted(NavBarGestureResult result) {
+        switch (mTutorialType) {
+            case HOME_NAVIGATION:
+                if (result == NavBarGestureResult.HOME_GESTURE_COMPLETED) {
+                    hideHandCoachingAnimation();
+                    mTutorialFragment.changeController(HOME_NAVIGATION_COMPLETE);
+                }
+                break;
+            case HOME_NAVIGATION_COMPLETE:
+                if (result == NavBarGestureResult.HOME_GESTURE_COMPLETED) {
+                    mTutorialFragment.closeTutorial();
+                }
+                break;
+        }
+    }
 }
diff --git a/quickstep/src/com/android/quickstep/interaction/NavBarGestureHandler.java b/quickstep/src/com/android/quickstep/interaction/NavBarGestureHandler.java
new file mode 100644
index 0000000..6d8caa2
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/interaction/NavBarGestureHandler.java
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.interaction;
+
+import static com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureResult.HOME_GESTURE_COMPLETED;
+import static com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureResult.HOME_NOT_STARTED_TOO_FAR_FROM_EDGE;
+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 android.content.Context;
+import android.content.res.Resources;
+import android.graphics.Point;
+import android.view.Display;
+import android.view.MotionEvent;
+import android.view.Surface;
+import android.view.View;
+import android.view.View.OnTouchListener;
+
+import com.android.launcher3.ResourceUtils;
+import com.android.quickstep.SysUINavigationMode.Mode;
+import com.android.quickstep.util.NavBarPosition;
+import com.android.quickstep.util.TriggerSwipeUpTouchTracker;
+
+/** Utility class to handle home gestures. */
+public class NavBarGestureHandler implements OnTouchListener {
+
+    private static final String LOG_TAG = "NavBarGestureHandler";
+
+    private final Point mDisplaySize = new Point();
+    private final TriggerSwipeUpTouchTracker mSwipeUpTouchTracker;
+    private int mBottomGestureHeight;
+    private boolean mTouchCameFromNavBar;
+    private NavBarGestureAttemptCallback mGestureCallback;
+
+    NavBarGestureHandler(Context context) {
+        final Display display = context.getDisplay();
+        final int displayRotation;
+        if (display == null) {
+            displayRotation = Surface.ROTATION_0;
+        } else {
+            displayRotation = display.getRotation();
+            display.getRealSize(mDisplaySize);
+        }
+        mSwipeUpTouchTracker =
+                new TriggerSwipeUpTouchTracker(context, true /*disableHorizontalSwipe*/,
+                        new NavBarPosition(Mode.NO_BUTTON, displayRotation),
+                        null /*onInterceptTouch*/, this::onSwipeUp);
+
+        final Resources resources = context.getResources();
+        mBottomGestureHeight =
+                ResourceUtils.getNavbarSize(ResourceUtils.NAVBAR_BOTTOM_GESTURE_SIZE, resources);
+    }
+
+    void registerNavBarGestureAttemptCallback(NavBarGestureAttemptCallback callback) {
+        mGestureCallback = callback;
+    }
+
+    void unregisterNavBarGestureAttemptCallback() {
+        mGestureCallback = null;
+    }
+
+    private void onSwipeUp(boolean wasFling) {
+        if (mGestureCallback == null) {
+            return;
+        }
+        if (mTouchCameFromNavBar) {
+            mGestureCallback.onNavBarGestureAttempted(wasFling
+                    ? HOME_GESTURE_COMPLETED : OVERVIEW_GESTURE_COMPLETED);
+        } else {
+            mGestureCallback.onNavBarGestureAttempted(wasFling
+                    ? HOME_NOT_STARTED_TOO_FAR_FROM_EDGE : OVERVIEW_NOT_STARTED_TOO_FAR_FROM_EDGE);
+        }
+    }
+
+    @Override
+    public boolean onTouch(View view, MotionEvent motionEvent) {
+        int action = motionEvent.getAction();
+        boolean intercepted = mSwipeUpTouchTracker.interceptedTouch();
+        if (action == MotionEvent.ACTION_DOWN) {
+            mTouchCameFromNavBar = motionEvent.getRawY() >= mDisplaySize.y - mBottomGestureHeight;
+            mSwipeUpTouchTracker.init();
+        } else if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL) {
+            if (mGestureCallback != null && !intercepted && mTouchCameFromNavBar) {
+                mGestureCallback.onNavBarGestureAttempted(
+                        HOME_OR_OVERVIEW_NOT_STARTED_WRONG_SWIPE_DIRECTION);
+                intercepted = true;
+            }
+        }
+        mSwipeUpTouchTracker.onMotionEvent(motionEvent);
+        return intercepted;
+    }
+
+    enum NavBarGestureResult {
+        UNKNOWN,
+        HOME_GESTURE_COMPLETED,
+        OVERVIEW_GESTURE_COMPLETED,
+        HOME_NOT_STARTED_TOO_FAR_FROM_EDGE,
+        OVERVIEW_NOT_STARTED_TOO_FAR_FROM_EDGE,
+        HOME_OR_OVERVIEW_NOT_STARTED_WRONG_SWIPE_DIRECTION  // Side swipe on nav bar.
+    }
+
+    /** Callback to let the UI react to attempted nav bar gestures. */
+    interface NavBarGestureAttemptCallback {
+        /** Called whenever any touch is completed. */
+        void onNavBarGestureAttempted(NavBarGestureResult result);
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/interaction/TutorialController.java b/quickstep/src/com/android/quickstep/interaction/TutorialController.java
index f0cb567..69c61ce 100644
--- a/quickstep/src/com/android/quickstep/interaction/TutorialController.java
+++ b/quickstep/src/com/android/quickstep/interaction/TutorialController.java
@@ -26,9 +26,11 @@
 import androidx.annotation.Nullable;
 
 import com.android.launcher3.R;
-import com.android.quickstep.interaction.EdgeBackGestureHandler.BackGestureResult;
+import com.android.quickstep.interaction.EdgeBackGestureHandler.BackGestureAttemptCallback;
+import com.android.quickstep.interaction.NavBarGestureHandler.NavBarGestureAttemptCallback;
 
-abstract class TutorialController {
+abstract class TutorialController implements BackGestureAttemptCallback,
+        NavBarGestureAttemptCallback {
 
     final TutorialFragment mTutorialFragment;
     final TutorialType mTutorialType;
@@ -58,8 +60,6 @@
         mActionButton = rootView.findViewById(R.id.gesture_tutorial_fragment_action_button);
     }
 
-    abstract void onBackGestureAttempted(BackGestureResult result);
-
     @Nullable
     Integer getTitleStringId() {
         return null;
@@ -86,6 +86,7 @@
 
     void hideHandCoachingAnimation() {
         mHandCoachingAnimation.stop();
+        mHandCoachingView.setVisibility(View.INVISIBLE);
     }
 
     @CallSuper
diff --git a/quickstep/src/com/android/quickstep/interaction/TutorialFragment.java b/quickstep/src/com/android/quickstep/interaction/TutorialFragment.java
index 6346a9b..3d02525 100644
--- a/quickstep/src/com/android/quickstep/interaction/TutorialFragment.java
+++ b/quickstep/src/com/android/quickstep/interaction/TutorialFragment.java
@@ -21,7 +21,9 @@
 import android.os.Bundle;
 import android.util.Log;
 import android.view.LayoutInflater;
+import android.view.MotionEvent;
 import android.view.View;
+import android.view.View.OnTouchListener;
 import android.view.ViewGroup;
 import android.view.WindowInsets;
 
@@ -31,13 +33,11 @@
 import androidx.fragment.app.FragmentActivity;
 
 import com.android.launcher3.R;
-import com.android.quickstep.interaction.EdgeBackGestureHandler.BackGestureAttemptCallback;
-import com.android.quickstep.interaction.EdgeBackGestureHandler.BackGestureResult;
 import com.android.quickstep.interaction.TutorialController.TutorialType;
 
 import java.net.URISyntaxException;
 
-abstract class TutorialFragment extends Fragment implements BackGestureAttemptCallback {
+abstract class TutorialFragment extends Fragment implements OnTouchListener {
 
     private static final String LOG_TAG = "TutorialFragment";
     private static final String SYSTEM_NAVIGATION_SETTING_INTENT =
@@ -52,6 +52,7 @@
     View mRootView;
     TutorialHandAnimation mHandCoachingAnimation;
     EdgeBackGestureHandler mEdgeBackGestureHandler;
+    NavBarGestureHandler mNavBarGestureHandler;
 
     public static TutorialFragment newInstance(TutorialType tutorialType) {
         TutorialFragment fragment = getFragmentForTutorialType(tutorialType);
@@ -91,13 +92,14 @@
         Bundle args = savedInstanceState != null ? savedInstanceState : getArguments();
         mTutorialType = (TutorialType) args.getSerializable(KEY_TUTORIAL_TYPE);
         mEdgeBackGestureHandler = new EdgeBackGestureHandler(getContext());
-        mEdgeBackGestureHandler.registerBackGestureAttemptCallback(this);
+        mNavBarGestureHandler = new NavBarGestureHandler(getContext());
     }
 
     @Override
     public void onDestroy() {
         super.onDestroy();
         mEdgeBackGestureHandler.unregisterBackGestureAttemptCallback();
+        mNavBarGestureHandler.unregisterNavBarGestureAttemptCallback();
     }
 
     @Override
@@ -111,7 +113,7 @@
             mEdgeBackGestureHandler.setInsets(systemInsets.left, systemInsets.right);
             return insets;
         });
-        mRootView.setOnTouchListener(mEdgeBackGestureHandler);
+        mRootView.setOnTouchListener(this);
         mHandCoachingAnimation = new TutorialHandAnimation(getContext(), mRootView,
                 getHandAnimationResId());
         return mRootView;
@@ -129,6 +131,13 @@
         mHandCoachingAnimation.stop();
     }
 
+    @Override
+    public boolean onTouch(View view, MotionEvent motionEvent) {
+        // Note: Using logical or to ensure both functions get called.
+        return mEdgeBackGestureHandler.onTouch(view, motionEvent)
+                | mNavBarGestureHandler.onTouch(view, motionEvent);
+    }
+
     void onAttachedToWindow() {
         mEdgeBackGestureHandler.setViewGroupParent((ViewGroup) getRootView());
     }
@@ -140,6 +149,8 @@
     void changeController(TutorialType tutorialType) {
         mTutorialController = createController(tutorialType);
         mTutorialController.transitToController();
+        mEdgeBackGestureHandler.registerBackGestureAttemptCallback(mTutorialController);
+        mNavBarGestureHandler.registerNavBarGestureAttemptCallback(mTutorialController);
         mTutorialType = tutorialType;
     }
 
@@ -157,13 +168,6 @@
         return mHandCoachingAnimation;
     }
 
-    @Override
-    public void onBackGestureAttempted(BackGestureResult result) {
-        if (mTutorialController != null) {
-            mTutorialController.onBackGestureAttempted(result);
-        }
-    }
-
     void closeTutorial() {
         FragmentActivity activity = getActivity();
         if (activity != null) {
diff --git a/quickstep/src/com/android/quickstep/interaction/TutorialHandAnimation.java b/quickstep/src/com/android/quickstep/interaction/TutorialHandAnimation.java
index 5362aaf..c810e43 100644
--- a/quickstep/src/com/android/quickstep/interaction/TutorialHandAnimation.java
+++ b/quickstep/src/com/android/quickstep/interaction/TutorialHandAnimation.java
@@ -45,6 +45,7 @@
 
     /** [Re]starts animation for the given tutorial. */
     void startLoopedAnimation(TutorialType tutorialType) {
+        mHandCoachingView.setVisibility(View.VISIBLE);
         if (mGestureAnimation.isRunning()) {
             stop();
         }
diff --git a/quickstep/src/com/android/quickstep/util/NavBarPosition.java b/quickstep/src/com/android/quickstep/util/NavBarPosition.java
index 74e6b29..0a98e1b 100644
--- a/quickstep/src/com/android/quickstep/util/NavBarPosition.java
+++ b/quickstep/src/com/android/quickstep/util/NavBarPosition.java
@@ -35,6 +35,11 @@
         mDisplayRotation = info.rotation;
     }
 
+    public NavBarPosition(SysUINavigationMode.Mode mode, int displayRotation) {
+        mMode = mode;
+        mDisplayRotation = displayRotation;
+    }
+
     public boolean isRightEdge() {
         return mMode != NO_BUTTON && mDisplayRotation == Surface.ROTATION_90;
     }
diff --git a/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java b/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
index 21b97ec..4cd0206 100644
--- a/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
+++ b/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
@@ -62,15 +62,12 @@
     static void prepareTargetsForFirstFrame(RemoteAnimationTargetCompat[] targets,
             TransactionCompat t, int boostModeTargets) {
         for (RemoteAnimationTargetCompat target : targets) {
-            t.setLayer(target.leash, getLayer(target, boostModeTargets));
             t.show(target.leash);
         }
     }
 
     public static int getLayer(RemoteAnimationTargetCompat target, int boostModeTarget) {
-        return target.mode == boostModeTarget
-                ? Z_BOOST_BASE + target.prefixOrderIndex
-                : target.prefixOrderIndex;
+        return target.prefixOrderIndex;
     }
 
     /**
diff --git a/robolectric_tests/src/com/android/launcher3/model/DbDowngradeHelperTest.java b/robolectric_tests/src/com/android/launcher3/model/DbDowngradeHelperTest.java
index b7340cf..bbbe21e 100644
--- a/robolectric_tests/src/com/android/launcher3/model/DbDowngradeHelperTest.java
+++ b/robolectric_tests/src/com/android/launcher3/model/DbDowngradeHelperTest.java
@@ -130,7 +130,7 @@
         }
         helper.close();
 
-        helper = new DatabaseHelper(mContext, DB_FILE) {
+        helper = new DatabaseHelper(mContext, DB_FILE, false) {
             @Override
             public void onOpen(SQLiteDatabase db) { }
         };
@@ -161,7 +161,7 @@
 
         DbDowngradeHelper.updateSchemaFile(mSchemaFile, LauncherProvider.SCHEMA_VERSION, mContext);
 
-        DatabaseHelper dbHelper = new DatabaseHelper(mContext, DB_FILE) {
+        DatabaseHelper dbHelper = new DatabaseHelper(mContext, DB_FILE, false) {
             @Override
             public void onOpen(SQLiteDatabase db) { }
         };
diff --git a/robolectric_tests/src/com/android/launcher3/provider/RestoreDbTaskTest.java b/robolectric_tests/src/com/android/launcher3/provider/RestoreDbTaskTest.java
index 58174c7..ee73b82 100644
--- a/robolectric_tests/src/com/android/launcher3/provider/RestoreDbTaskTest.java
+++ b/robolectric_tests/src/com/android/launcher3/provider/RestoreDbTaskTest.java
@@ -95,7 +95,7 @@
         private final long mProfileId;
 
         MyDatabaseHelper(long profileId) {
-            super(RuntimeEnvironment.application, null);
+            super(RuntimeEnvironment.application, null, false);
             mProfileId = profileId;
         }
 
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index e8e88c4..d7d4a27 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -79,8 +79,10 @@
 
     private static final int[] STATE_PRESSED = new int[] {android.R.attr.state_pressed};
 
-    private final PointF mTranslationForReorder = new PointF(0, 0);
-    private float mScaleForReorder = 1f;
+    private final PointF mTranslationForReorderBounce = new PointF(0, 0);
+    private final PointF mTranslationForReorderPreview = new PointF(0, 0);
+
+    private float mScaleForReorderBounce = 1f;
 
     private static final Property<BubbleTextView, Float> DOT_SCALE_PROPERTY
             = new Property<BubbleTextView, Float>(Float.TYPE, "dotScale") {
@@ -675,24 +677,39 @@
         return mIconSize;
     }
 
-    public void setReorderOffset(float x, float y) {
-        mTranslationForReorder.set(x, y);
-        super.setTranslationX(x);
-        super.setTranslationY(y);
+    private void updateTranslation() {
+        super.setTranslationX(mTranslationForReorderBounce.x + mTranslationForReorderPreview.x);
+        super.setTranslationY(mTranslationForReorderBounce.y + mTranslationForReorderPreview.y);
     }
 
-    public void getReorderOffset(PointF offset) {
-        offset.set(mTranslationForReorder);
+    public void setReorderBounceOffset(float x, float y) {
+        mTranslationForReorderBounce.set(x, y);
+        updateTranslation();
     }
 
-    public void setReorderScale(float scale) {
-        mScaleForReorder = scale;
+    public void getReorderBounceOffset(PointF offset) {
+        offset.set(mTranslationForReorderBounce);
+    }
+
+    @Override
+    public void setReorderPreviewOffset(float x, float y) {
+        mTranslationForReorderPreview.set(x, y);
+        updateTranslation();
+    }
+
+    @Override
+    public void getReorderPreviewOffset(PointF offset) {
+        offset.set(mTranslationForReorderPreview);
+    }
+
+    public void setReorderBounceScale(float scale) {
+        mScaleForReorderBounce = scale;
         super.setScaleX(scale);
         super.setScaleY(scale);
     }
 
-    public float getReorderScale() {
-        return mScaleForReorder;
+    public float getReorderBounceScale() {
+        return mScaleForReorderBounce;
     }
 
     public View getView() {
diff --git a/src/com/android/launcher3/CellLayout.java b/src/com/android/launcher3/CellLayout.java
index 71a787f..ed71ddc 100644
--- a/src/com/android/launcher3/CellLayout.java
+++ b/src/com/android/launcher3/CellLayout.java
@@ -852,9 +852,10 @@
             int delay, boolean permanent, boolean adjustOccupied) {
         ShortcutAndWidgetContainer clc = getShortcutsAndWidgets();
 
-        if (clc.indexOfChild(child) != -1) {
+        if (clc.indexOfChild(child) != -1 && (child instanceof Reorderable)) {
             final LayoutParams lp = (LayoutParams) child.getLayoutParams();
             final ItemInfo info = (ItemInfo) child.getTag();
+            final Reorderable item = (Reorderable) child;
 
             // We cancel any existing animations
             if (mReorderAnimators.containsKey(lp)) {
@@ -862,13 +863,18 @@
                 mReorderAnimators.remove(lp);
             }
 
-            final int oldX = lp.x;
-            final int oldY = lp.y;
+
             if (adjustOccupied) {
                 GridOccupancy occupied = permanent ? mOccupied : mTmpOccupied;
                 occupied.markCells(lp.cellX, lp.cellY, lp.cellHSpan, lp.cellVSpan, false);
                 occupied.markCells(cellX, cellY, lp.cellHSpan, lp.cellVSpan, true);
             }
+
+            // Compute the new x and y position based on the new cellX and cellY
+            // We leverage the actual layout logic in the layout params and hence need to modify
+            // state and revert that state.
+            final int oldX = lp.x;
+            final int oldY = lp.y;
             lp.isLockedToGrid = true;
             if (permanent) {
                 lp.cellX = info.cellX = cellX;
@@ -878,15 +884,23 @@
                 lp.tmpCellY = cellY;
             }
             clc.setupLp(child);
-            lp.isLockedToGrid = false;
             final int newX = lp.x;
             final int newY = lp.y;
-
             lp.x = oldX;
             lp.y = oldY;
+            lp.isLockedToGrid = false;
+            // End compute new x and y
+
+            item.getReorderPreviewOffset(mTmpPointF);
+            final float initPreviewOffsetX = mTmpPointF.x;
+            final float initPreviewOffsetY = mTmpPointF.y;
+            final float finalPreviewOffsetX = newX - oldX;
+            final float finalPreviewOffsetY = newY - oldY;
+
 
             // Exit early if we're not actually moving the view
-            if (oldX == newX && oldY == newY) {
+            if (finalPreviewOffsetX == 0 && finalPreviewOffsetY == 0
+                    && initPreviewOffsetX == 0 && initPreviewOffsetY == 0) {
                 lp.isLockedToGrid = true;
                 return true;
             }
@@ -899,9 +913,9 @@
                 @Override
                 public void onAnimationUpdate(ValueAnimator animation) {
                     float r = (Float) animation.getAnimatedValue();
-                    lp.x = (int) ((1 - r) * oldX + r * newX);
-                    lp.y = (int) ((1 - r) * oldY + r * newY);
-                    child.requestLayout();
+                    float x = (1 - r) * initPreviewOffsetX + r * finalPreviewOffsetX;
+                    float y = (1 - r) * initPreviewOffsetY + r * finalPreviewOffsetY;
+                    item.setReorderPreviewOffset(x, y);
                 }
             });
             va.addListener(new AnimatorListenerAdapter() {
@@ -912,6 +926,7 @@
                     // place just yet.
                     if (!cancelled) {
                         lp.isLockedToGrid = true;
+                        item.setReorderPreviewOffset(0, 0);
                         child.requestLayout();
                     }
                     if (mReorderAnimators.containsKey(lp)) {
@@ -1930,10 +1945,10 @@
             finalDeltaX = 0;
             finalDeltaY = 0;
 
-            child.getReorderOffset(mTmpPointF);
+            child.getReorderBounceOffset(mTmpPointF);
             initDeltaX = mTmpPointF.x;
             initDeltaY = mTmpPointF.y;
-            initScale = child.getReorderScale();
+            initScale = child.getReorderBounceScale();
             finalScale = mChildScale - (CHILD_DIVIDEND / child.getView().getWidth()) * initScale;
 
             int dir = mode == MODE_HINT ? -1 : 1;
@@ -2010,9 +2025,9 @@
             float r1 = (mode == MODE_HINT && repeating) ? 1.0f : animationProgress;
             float x = r1 * finalDeltaX + (1 - r1) * initDeltaX;
             float y = r1 * finalDeltaY + (1 - r1) * initDeltaY;
-            child.setReorderOffset(x, y);
+            child.setReorderBounceOffset(x, y);
             float s = animationProgress * finalScale + (1 - animationProgress) * initScale;
-            child.setReorderScale(s);
+            child.setReorderBounceScale(s);
         }
 
         private void cancel() {
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index 0a1fad1..63b90ae 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -17,6 +17,7 @@
 package com.android.launcher3;
 
 import static com.android.launcher3.Utilities.getDevicePrefs;
+import static com.android.launcher3.Utilities.getPointString;
 import static com.android.launcher3.config.FeatureFlags.APPLY_CONFIG_AT_RUNTIME;
 import static com.android.launcher3.settings.SettingsActivity.GRID_OPTIONS_PREFERENCE_KEY;
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
@@ -69,6 +70,9 @@
     public static final MainThreadInitializedObject<InvariantDeviceProfile> INSTANCE =
             new MainThreadInitializedObject<>(InvariantDeviceProfile::new);
 
+    public static final String KEY_MIGRATION_SRC_WORKSPACE_SIZE = "migration_src_workspace_size";
+    public static final String KEY_MIGRATION_SRC_HOTSEAT_COUNT = "migration_src_hotseat_count";
+
     private static final String KEY_IDP_GRID_NAME = "idp_grid_name";
 
     private static final float ICON_SIZE_DEFINED_IN_APP_DP = 48;
@@ -165,6 +169,10 @@
         if (!newGridName.equals(gridName)) {
             Utilities.getPrefs(context).edit().putString(KEY_IDP_GRID_NAME, newGridName).apply();
         }
+        Utilities.getPrefs(context).edit()
+                .putInt(KEY_MIGRATION_SRC_HOTSEAT_COUNT, numHotseatIcons)
+                .putString(KEY_MIGRATION_SRC_WORKSPACE_SIZE, getPointString(numColumns, numRows))
+                .apply();
 
         mConfigMonitor = new ConfigMonitor(context,
                 APPLY_CONFIG_AT_RUNTIME.get() ? this::onConfigChanged : this::killProcess);
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index ac3a5b0..21cd04e 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -146,7 +146,8 @@
      */
     protected synchronized void createDbIfNotExists() {
         if (mOpenHelper == null) {
-            mOpenHelper = DatabaseHelper.createDatabaseHelper(getContext());
+            mOpenHelper = DatabaseHelper.createDatabaseHelper(
+                    getContext(), false /* forMigration */);
 
             if (RestoreDbTask.isPending(getContext())) {
                 if (!RestoreDbTask.performRestore(getContext(), mOpenHelper,
@@ -426,7 +427,8 @@
                                     InvariantDeviceProfile.INSTANCE.get(getContext()).dbFile,
                                     Favorites.TMP_TABLE,
                                     () -> mOpenHelper,
-                                    () -> DatabaseHelper.createDatabaseHelper(getContext())));
+                                    () -> DatabaseHelper.createDatabaseHelper(
+                                            getContext(), true /* forMigration */)));
                     return result;
                 }
             }
@@ -437,7 +439,8 @@
                             prepForMigration(
                                     arg /* dbFile */,
                                     Favorites.PREVIEW_TABLE_NAME,
-                                    () -> DatabaseHelper.createDatabaseHelper(getContext(), arg),
+                                    () -> DatabaseHelper.createDatabaseHelper(
+                                            getContext(), arg, true /* forMigration */),
                                     () -> mOpenHelper));
                     return result;
                 }
@@ -601,20 +604,22 @@
     public static class DatabaseHelper extends NoLocaleSQLiteHelper implements
             LayoutParserCallback {
         private final Context mContext;
+        private final boolean mForMigration;
         private int mMaxItemId = -1;
         private int mMaxScreenId = -1;
         private boolean mBackupTableExists;
 
-        static DatabaseHelper createDatabaseHelper(Context context) {
-            return createDatabaseHelper(context, null);
+        static DatabaseHelper createDatabaseHelper(Context context, boolean forMigration) {
+            return createDatabaseHelper(context, null, forMigration);
         }
 
-        static DatabaseHelper createDatabaseHelper(Context context, String dbName) {
+        static DatabaseHelper createDatabaseHelper(Context context, String dbName,
+                boolean forMigration) {
             if (dbName == null) {
                 dbName = MULTI_DB_GRID_MIRATION_ALGO.get() ? InvariantDeviceProfile.INSTANCE.get(
                         context).dbFile : LauncherFiles.LAUNCHER_DB;
             }
-            DatabaseHelper databaseHelper = new DatabaseHelper(context, dbName);
+            DatabaseHelper databaseHelper = new DatabaseHelper(context, dbName, forMigration);
             // Table creation sometimes fails silently, which leads to a crash loop.
             // This way, we will try to create a table every time after crash, so the device
             // would eventually be able to recover.
@@ -635,9 +640,10 @@
         /**
          * Constructor used in tests and for restore.
          */
-        public DatabaseHelper(Context context, String dbName) {
+        public DatabaseHelper(Context context, String dbName, boolean forMigration) {
             super(context, dbName, SCHEMA_VERSION);
             mContext = context;
+            mForMigration = forMigration;
         }
 
         protected void initIds() {
@@ -662,7 +668,9 @@
 
             // Fresh and clean launcher DB.
             mMaxItemId = initializeMaxItemId(db);
-            onEmptyDbCreated();
+            if (!mForMigration) {
+                onEmptyDbCreated();
+            }
         }
 
         protected void onAddOrDeleteOp(SQLiteDatabase db) {
diff --git a/src/com/android/launcher3/Reorderable.java b/src/com/android/launcher3/Reorderable.java
index 5112eaf..047fb01 100644
--- a/src/com/android/launcher3/Reorderable.java
+++ b/src/com/android/launcher3/Reorderable.java
@@ -22,17 +22,24 @@
 public interface Reorderable {
 
     /**
-     * Set the offset related to reorder hint and "bounce" animations
+     * Set the offset related to reorder hint and bounce animations
      */
-    void setReorderOffset(float x, float y);
+    void setReorderBounceOffset(float x, float y);
 
-    void getReorderOffset(PointF offset);
+    void getReorderBounceOffset(PointF offset);
+
+    /**
+     * Set the offset related to previewing the new reordered position
+     */
+    void setReorderPreviewOffset(float x, float y);
+
+    void getReorderPreviewOffset(PointF offset);
 
     /**
      * Set the scale related to reorder hint and "bounce" animations
      */
-    void setReorderScale(float scale);
-    float getReorderScale();
+    void setReorderBounceScale(float scale);
+    float getReorderBounceScale();
 
     /**
      * Get the com.android.view related to this object
diff --git a/src/com/android/launcher3/folder/FolderIcon.java b/src/com/android/launcher3/folder/FolderIcon.java
index 7fc6d54..b875a0b 100644
--- a/src/com/android/launcher3/folder/FolderIcon.java
+++ b/src/com/android/launcher3/folder/FolderIcon.java
@@ -121,8 +121,9 @@
     private float mDotScale;
     private Animator mDotScaleAnim;
 
-    private final PointF mTranslationForReorder = new PointF(0, 0);
-    private float mScaleForReorder = 1f;
+    private final PointF mTranslationForReorderBounce = new PointF(0, 0);
+    private final PointF mTranslationForReorderPreview = new PointF(0, 0);
+    private float mScaleForReorderBounce = 1f;
 
     private static final Property<FolderIcon, Float> DOT_SCALE_PROPERTY
             = new Property<FolderIcon, Float>(Float.TYPE, "dotScale") {
@@ -712,25 +713,39 @@
         mPreviewItemManager.onFolderClose(currentPage);
     }
 
-
-    public void setReorderOffset(float x, float y) {
-        mTranslationForReorder.set(x, y);
-        super.setTranslationX(x);
-        super.setTranslationY(y);
+    private void updateTranslation() {
+        super.setTranslationX(mTranslationForReorderBounce.x + mTranslationForReorderPreview.x);
+        super.setTranslationY(mTranslationForReorderBounce.y + mTranslationForReorderPreview.y);
     }
 
-    public void getReorderOffset(PointF offset) {
-        offset.set(mTranslationForReorder);
+    public void setReorderBounceOffset(float x, float y) {
+        mTranslationForReorderBounce.set(x, y);
+        updateTranslation();
     }
 
-    public void setReorderScale(float scale) {
-        mScaleForReorder = scale;
+    public void getReorderBounceOffset(PointF offset) {
+        offset.set(mTranslationForReorderBounce);
+    }
+
+    @Override
+    public void setReorderPreviewOffset(float x, float y) {
+        mTranslationForReorderPreview.set(x, y);
+        updateTranslation();
+    }
+
+    @Override
+    public void getReorderPreviewOffset(PointF offset) {
+        offset.set(mTranslationForReorderPreview);
+    }
+
+    public void setReorderBounceScale(float scale) {
+        mScaleForReorderBounce = scale;
         super.setScaleX(scale);
         super.setScaleY(scale);
     }
 
-    public float getReorderScale() {
-        return mScaleForReorder;
+    public float getReorderBounceScale() {
+        return mScaleForReorderBounce;
     }
 
     public View getView() {
diff --git a/src/com/android/launcher3/model/GridSizeMigrationTask.java b/src/com/android/launcher3/model/GridSizeMigrationTask.java
index b27e4ea..e8a52bd 100644
--- a/src/com/android/launcher3/model/GridSizeMigrationTask.java
+++ b/src/com/android/launcher3/model/GridSizeMigrationTask.java
@@ -1,5 +1,7 @@
 package com.android.launcher3.model;
 
+import static com.android.launcher3.InvariantDeviceProfile.KEY_MIGRATION_SRC_HOTSEAT_COUNT;
+import static com.android.launcher3.InvariantDeviceProfile.KEY_MIGRATION_SRC_WORKSPACE_SIZE;
 import static com.android.launcher3.LauncherSettings.Settings.EXTRA_VALUE;
 import static com.android.launcher3.Utilities.getPointString;
 import static com.android.launcher3.Utilities.parsePoint;
@@ -53,9 +55,6 @@
     private static final String TAG = "GridSizeMigrationTask";
     private static final boolean DEBUG = true;
 
-    private static final String KEY_MIGRATION_SRC_WORKSPACE_SIZE = "migration_src_workspace_size";
-    private static final String KEY_MIGRATION_SRC_HOTSEAT_COUNT = "migration_src_hotseat_count";
-
     // These are carefully selected weights for various item types (Math.random?), to allow for
     // the least absurd migration experience.
     private static final float WT_SHORTCUT = 1;
@@ -894,8 +893,7 @@
         String gridSizeString = getPointString(idp.numColumns, idp.numRows);
 
         return !gridSizeString.equals(prefs.getString(KEY_MIGRATION_SRC_WORKSPACE_SIZE, ""))
-                || idp.numHotseatIcons != prefs.getInt(KEY_MIGRATION_SRC_HOTSEAT_COUNT,
-                idp.numHotseatIcons);
+                || idp.numHotseatIcons != prefs.getInt(KEY_MIGRATION_SRC_HOTSEAT_COUNT, -1);
     }
 
     /** See {@link #migrateGridIfNeeded(Context, InvariantDeviceProfile)} */
diff --git a/src/com/android/launcher3/model/GridSizeMigrationTaskV2.java b/src/com/android/launcher3/model/GridSizeMigrationTaskV2.java
index 1c44fc3..4a28218 100644
--- a/src/com/android/launcher3/model/GridSizeMigrationTaskV2.java
+++ b/src/com/android/launcher3/model/GridSizeMigrationTaskV2.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.model;
 
+import static com.android.launcher3.InvariantDeviceProfile.KEY_MIGRATION_SRC_HOTSEAT_COUNT;
+import static com.android.launcher3.InvariantDeviceProfile.KEY_MIGRATION_SRC_WORKSPACE_SIZE;
 import static com.android.launcher3.Utilities.getPointString;
 import static com.android.launcher3.provider.LauncherDbUtils.dropTable;
 
@@ -63,9 +65,6 @@
  */
 public class GridSizeMigrationTaskV2 {
 
-    public static final String KEY_MIGRATION_SRC_WORKSPACE_SIZE = "migration_src_workspace_size";
-    public static final String KEY_MIGRATION_SRC_HOTSEAT_COUNT = "migration_src_hotseat_count";
-
     private static final String TAG = "GridSizeMigrationTaskV2";
     private static final boolean DEBUG = true;
 
@@ -110,8 +109,7 @@
         String gridSizeString = getPointString(idp.numColumns, idp.numRows);
 
         return !gridSizeString.equals(prefs.getString(KEY_MIGRATION_SRC_WORKSPACE_SIZE, ""))
-                || idp.numHotseatIcons != prefs.getInt(KEY_MIGRATION_SRC_HOTSEAT_COUNT,
-                idp.numHotseatIcons);
+                || idp.numHotseatIcons != prefs.getInt(KEY_MIGRATION_SRC_HOTSEAT_COUNT, -1);
     }
 
     /** See {@link #migrateGridIfNeeded(Context, InvariantDeviceProfile)} */
@@ -148,14 +146,6 @@
 
         SharedPreferences prefs = Utilities.getPrefs(context);
         String gridSizeString = getPointString(idp.numColumns, idp.numRows);
-
-        if (gridSizeString.equals(prefs.getString(KEY_MIGRATION_SRC_WORKSPACE_SIZE, ""))
-                && idp.numHotseatIcons == prefs.getInt(KEY_MIGRATION_SRC_HOTSEAT_COUNT,
-                idp.numHotseatIcons)) {
-            // Skip if workspace and hotseat sizes have not changed.
-            return true;
-        }
-
         HashSet<String> validPackages = getValidPackages(context);
         int srcHotseatCount = prefs.getInt(KEY_MIGRATION_SRC_HOTSEAT_COUNT, idp.numHotseatIcons);
 
diff --git a/src/com/android/launcher3/touch/LandscapePagedViewHandler.java b/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
index e290685..dc50053 100644
--- a/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
+++ b/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
@@ -16,6 +16,7 @@
 
 package com.android.launcher3.touch;
 
+import static android.widget.ListPopupWindow.WRAP_CONTENT;
 import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_X;
 import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_Y;
 import static com.android.launcher3.touch.SingleAxisSwipeDetector.HORIZONTAL;
@@ -30,6 +31,7 @@
 import android.view.VelocityTracker;
 import android.view.View;
 import android.view.accessibility.AccessibilityEvent;
+import android.widget.LinearLayout;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.PagedView;
@@ -224,6 +226,33 @@
     }
 
     @Override
+    public float getTaskMenuX(float x, View thumbnailView) {
+        return thumbnailView.getMeasuredWidth() + x;
+    }
+
+    @Override
+    public float getTaskMenuY(float y, View thumbnailView) {
+        return y;
+    }
+
+    @Override
+    public int getTaskMenuWidth(View view) {
+        return view.getMeasuredHeight();
+    }
+
+    @Override
+    public int getTaskMenuLayoutOrientation() {
+        return LinearLayout.HORIZONTAL;
+    }
+
+    @Override
+    public void setLayoutParamsForTaskMenuOptionItem(LinearLayout.LayoutParams lp) {
+        lp.width = 0;
+        lp.height = WRAP_CONTENT;
+        lp.weight = 1;
+    }
+
+    @Override
     public ChildBounds getChildBounds(View child, int childStart, int pageCenter,
         boolean layoutChild) {
         final int childHeight = child.getMeasuredHeight();
diff --git a/src/com/android/launcher3/touch/PagedOrientationHandler.java b/src/com/android/launcher3/touch/PagedOrientationHandler.java
index b8396e1..cc15f99 100644
--- a/src/com/android/launcher3/touch/PagedOrientationHandler.java
+++ b/src/com/android/launcher3/touch/PagedOrientationHandler.java
@@ -27,6 +27,7 @@
 import android.view.VelocityTracker;
 import android.view.View;
 import android.view.accessibility.AccessibilityEvent;
+import android.widget.LinearLayout;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.PagedView;
@@ -90,6 +91,11 @@
     void getCurveProperties(PagedView view, Rect insets, CurveProperties out);
     boolean isGoingUp(float displacement);
     boolean isLayoutNaturalToLauncher();
+    float getTaskMenuX(float x, View thumbnailView);
+    float getTaskMenuY(float y, View thumbnailView);
+    int getTaskMenuWidth(View view);
+    int getTaskMenuLayoutOrientation();
+    void setLayoutParamsForTaskMenuOptionItem(LinearLayout.LayoutParams lp);
 
     /**
      * Maps the velocity from the coordinate plane of the foreground app to that
diff --git a/src/com/android/launcher3/touch/PortraitPagedViewHandler.java b/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
index dad00a4..7c30e29 100644
--- a/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
+++ b/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
@@ -30,6 +30,7 @@
 import android.view.VelocityTracker;
 import android.view.View;
 import android.view.accessibility.AccessibilityEvent;
+import android.widget.LinearLayout;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.PagedView;
@@ -222,6 +223,31 @@
     }
 
     @Override
+    public float getTaskMenuX(float x, View thumbnailView) {
+        return x;
+    }
+
+    @Override
+    public float getTaskMenuY(float y, View thumbnailView) {
+        return y;
+    }
+
+    @Override
+    public int getTaskMenuWidth(View view) {
+        return view.getMeasuredWidth();
+    }
+
+    @Override
+    public int getTaskMenuLayoutOrientation() {
+        return LinearLayout.VERTICAL;
+    }
+
+    @Override
+    public void setLayoutParamsForTaskMenuOptionItem(LinearLayout.LayoutParams lp) {
+        // no-op, defaults are fine
+    }
+
+    @Override
     public ChildBounds getChildBounds(View child, int childStart, int pageCenter,
         boolean layoutChild) {
         final int childWidth = child.getMeasuredWidth();
diff --git a/src/com/android/launcher3/touch/SeascapePagedViewHandler.java b/src/com/android/launcher3/touch/SeascapePagedViewHandler.java
index 5ce8a57..7beb7f7 100644
--- a/src/com/android/launcher3/touch/SeascapePagedViewHandler.java
+++ b/src/com/android/launcher3/touch/SeascapePagedViewHandler.java
@@ -20,6 +20,7 @@
 import android.graphics.PointF;
 import android.graphics.RectF;
 import android.view.Surface;
+import android.view.View;
 
 import com.android.launcher3.Utilities;
 
@@ -64,4 +65,14 @@
         float oldY = velocity.y;
         velocity.set(oldY, -oldX);
     }
+
+    @Override
+    public float getTaskMenuX(float x, View thumbnailView) {
+        return x;
+    }
+
+    @Override
+    public float getTaskMenuY(float y, View thumbnailView) {
+        return y + thumbnailView.getMeasuredHeight();
+    }
 }
diff --git a/src/com/android/launcher3/widget/NavigableAppWidgetHostView.java b/src/com/android/launcher3/widget/NavigableAppWidgetHostView.java
index 5ea01d9..a4e7daa 100644
--- a/src/com/android/launcher3/widget/NavigableAppWidgetHostView.java
+++ b/src/com/android/launcher3/widget/NavigableAppWidgetHostView.java
@@ -46,8 +46,9 @@
      */
     private final PointF mTranslationForCentering = new PointF(0, 0);
 
-    private final PointF mTranslationForReorder = new PointF(0, 0);
-    private float mScaleForReorder = 1f;
+    private final PointF mTranslationForReorderBounce = new PointF(0, 0);
+    private final PointF mTranslationForReorderPreview = new PointF(0, 0);
+    private float mScaleForReorderBounce = 1f;
 
     @ViewDebug.ExportedProperty(category = "launcher")
     private boolean mChildrenFocused;
@@ -152,45 +153,63 @@
         setSelected(childIsFocused);
     }
 
-    public void setScaleToFit(float scale) {
-        mScaleToFit = scale;
-        super.setScaleX(scale * mScaleForReorder);
-        super.setScaleY(scale * mScaleForReorder);
-    }
-
-    public float getScaleToFit() {
-        return mScaleToFit;
-    }
-
     public View getView() {
         return this;
     }
 
+    private void updateTranslation() {
+        super.setTranslationX(mTranslationForReorderBounce.x + mTranslationForReorderPreview.x
+                + mTranslationForCentering.x);
+        super.setTranslationY(mTranslationForReorderBounce.y + mTranslationForReorderPreview.y
+                + mTranslationForCentering.y);
+    }
 
     public void setTranslationForCentering(float x, float y) {
         mTranslationForCentering.set(x, y);
-        super.setTranslationX(x + mTranslationForReorder.x);
-        super.setTranslationY(y + mTranslationForReorder.y);
+        updateTranslation();
     }
 
-    public void setReorderOffset(float x, float y) {
-        mTranslationForReorder.set(x, y);
-        super.setTranslationX(mTranslationForCentering.x + x);
-        super.setTranslationY(mTranslationForCentering.y + y);
+    public void setReorderBounceOffset(float x, float y) {
+        mTranslationForReorderBounce.set(x, y);
+        updateTranslation();
     }
 
-    public void getReorderOffset(PointF offset) {
-        offset.set(mTranslationForReorder);
+    public void getReorderBounceOffset(PointF offset) {
+        offset.set(mTranslationForReorderBounce);
     }
 
-    public void setReorderScale(float scale) {
-        mScaleForReorder = scale;
-        super.setScaleX(mScaleToFit * scale);
-        super.setScaleY(mScaleToFit * scale);
+    @Override
+    public void setReorderPreviewOffset(float x, float y) {
+        mTranslationForReorderPreview.set(x, y);
+        updateTranslation();
     }
 
-    public float getReorderScale() {
-        return mScaleForReorder;
+    @Override
+    public void getReorderPreviewOffset(PointF offset) {
+        offset.set(mTranslationForReorderPreview);
+    }
+
+    private void updateScale() {
+        super.setScaleX(mScaleToFit * mScaleForReorderBounce);
+        super.setScaleY(mScaleToFit * mScaleForReorderBounce);
+    }
+
+    public void setReorderBounceScale(float scale) {
+        mScaleForReorderBounce = scale;
+        updateScale();
+    }
+
+    public float getReorderBounceScale() {
+        return mScaleForReorderBounce;
+    }
+
+    public void setScaleToFit(float scale) {
+        mScaleToFit = scale;
+        updateScale();
+    }
+
+    public float getScaleToFit() {
+        return mScaleToFit;
     }
 
     @Override
diff --git a/tests/src/com/android/launcher3/ui/ActivityLeakTracker.java b/tests/src/com/android/launcher3/ui/ActivityLeakTracker.java
index 0b5ce02..e9258e9 100644
--- a/tests/src/com/android/launcher3/ui/ActivityLeakTracker.java
+++ b/tests/src/com/android/launcher3/ui/ActivityLeakTracker.java
@@ -77,6 +77,8 @@
             }
         }
 
+        if (liveActivities > 2)  return false;
+
         // It's OK to have 1 leaked activity if no active activities exist.
         return liveActivities == 0 ? destroyedActivities <= 1 : destroyedActivities == 0;
     }