diff --git a/quickstep/libs/sysui_shared.jar b/quickstep/libs/sysui_shared.jar
index 0adc83a..13f41ee 100644
--- a/quickstep/libs/sysui_shared.jar
+++ b/quickstep/libs/sysui_shared.jar
Binary files differ
diff --git a/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java b/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
index ab350e4..bd1cdc6 100644
--- a/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
+++ b/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
@@ -190,7 +190,7 @@
                                 }
                             });
                         }
-                        anim.play(getWindowAnimators(v, targetCompats));
+                        anim.play(getOpeningWindowAnimators(v, targetCompats));
                     }
 
                     if (launcherClosing) {
@@ -454,7 +454,7 @@
     /**
      * @return Animator that controls the window of the opening targets.
      */
-    private ValueAnimator getWindowAnimators(View v, RemoteAnimationTargetCompat[] targets) {
+    private ValueAnimator getOpeningWindowAnimators(View v, RemoteAnimationTargetCompat[] targets) {
         Rect bounds = new Rect();
         if (v.getParent() instanceof DeepShortcutView) {
             // Deep shortcut views have their icon drawn in a separate view.
@@ -475,7 +475,6 @@
         appAnimator.addUpdateListener(new MultiValueUpdateListener() {
             // Fade alpha for the app window.
             FloatProp mAlpha = new FloatProp(0f, 1f, 0, 60, LINEAR);
-
             boolean isFirstFrame = true;
 
             @Override
@@ -522,6 +521,10 @@
                 crop.bottom = (int) (crop.top + cropHeight);
 
                 TransactionCompat t = new TransactionCompat();
+                if (isFirstFrame) {
+                    RemoteAnimationProvider.prepareTargetsForFirstFrame(targets, t, MODE_OPENING);
+                    isFirstFrame = false;
+                }
                 for (RemoteAnimationTargetCompat target : targets) {
                     if (target.mode == MODE_OPENING) {
                         t.setAlpha(target.leash, mAlpha.value);
@@ -533,15 +536,10 @@
                         t.setWindowCrop(target.leash, crop);
                         t.deferTransactionUntil(target.leash, surface, getNextFrameNumber(surface));
                     }
-                    if (isFirstFrame) {
-                        t.show(target.leash);
-                    }
                 }
-                t.setEarlyWakeup();
                 t.apply();
 
                 matrix.reset();
-                isFirstFrame = false;
             }
         });
         return appAnimator;
@@ -638,6 +636,10 @@
             @Override
             public void onUpdate(float percent) {
                 TransactionCompat t = new TransactionCompat();
+                if (isFirstFrame) {
+                    RemoteAnimationProvider.prepareTargetsForFirstFrame(targets, t, MODE_CLOSING);
+                    isFirstFrame = false;
+                }
                 for (RemoteAnimationTargetCompat app : targets) {
                     if (app.mode == RemoteAnimationTargetCompat.MODE_CLOSING) {
                         t.setAlpha(app.leash, mAlpha.value);
@@ -648,19 +650,10 @@
                         matrix.postTranslate(app.position.x, app.position.y);
                         t.setMatrix(app.leash, matrix);
                     }
-                    if (isFirstFrame) {
-                        int layer = app.mode == RemoteAnimationTargetCompat.MODE_CLOSING
-                                ? Integer.MAX_VALUE
-                                : app.prefixOrderIndex;
-                        t.setLayer(app.leash, layer);
-                        t.show(app.leash);
-                    }
                 }
-                t.setEarlyWakeup();
                 t.apply();
 
                 matrix.reset();
-                isFirstFrame = false;
             }
         });
 
diff --git a/quickstep/src/com/android/quickstep/ActivityControlHelper.java b/quickstep/src/com/android/quickstep/ActivityControlHelper.java
index ad11bd3..88cd376 100644
--- a/quickstep/src/com/android/quickstep/ActivityControlHelper.java
+++ b/quickstep/src/com/android/quickstep/ActivityControlHelper.java
@@ -102,6 +102,13 @@
      */
     boolean deferStartingActivity(int downHitTarget);
 
+    boolean supportsLongSwipe(T activity);
+
+    /**
+     * Must return a non-null controller is supportsLongSwipe was true.
+     */
+    LongSwipeHelper getLongSwipeController(T activity, RemoteAnimationTargetSet targetSet);
+
     class LauncherActivityControllerHelper implements ActivityControlHelper<Launcher> {
 
         @Override
@@ -164,11 +171,13 @@
         @Override
         public AnimationFactory prepareRecentsUI(Launcher activity, boolean activityVisible,
                 Consumer<AnimatorPlaybackController> callback) {
-            LauncherState startState = activity.getStateManager().getState();
+            final LauncherState startState = activity.getStateManager().getState();
+
+            LauncherState resetState = startState;
             if (startState.disableRestore) {
-                startState = activity.getStateManager().getRestState();
+                resetState = activity.getStateManager().getRestState();
             }
-            activity.getStateManager().setRestState(startState);
+            activity.getStateManager().setRestState(resetState);
 
             if (!activityVisible) {
                 // Since the launcher is not visible, we can safely reset the scroll position.
@@ -180,11 +189,21 @@
                 activity.getAppsView().getContentView().setVisibility(View.GONE);
             }
 
-            return (transitionLength) ->
-                    createActivityController(activity, activityVisible, transitionLength, callback);
+            return new AnimationFactory() {
+                @Override
+                public void createActivityController(long transitionLength) {
+                    createActivityControllerInternal(activity, activityVisible, transitionLength,
+                            callback);
+                }
+
+                @Override
+                public void onTransitionCancelled() {
+                    activity.getStateManager().goToState(startState, false /* animate */);
+                }
+            };
         }
 
-        private void createActivityController(Launcher activity, boolean wasVisible,
+        private void createActivityControllerInternal(Launcher activity, boolean wasVisible,
                 long transitionLength, Consumer<AnimatorPlaybackController> callback) {
             if (wasVisible) {
                 DeviceProfile dp = activity.getDeviceProfile();
@@ -272,6 +291,20 @@
         public boolean shouldMinimizeSplitScreen() {
             return true;
         }
+
+        @Override
+        public boolean supportsLongSwipe(Launcher activity) {
+            return !activity.getDeviceProfile().isVerticalBarLayout();
+        }
+
+        @Override
+        public LongSwipeHelper getLongSwipeController(Launcher activity,
+                RemoteAnimationTargetSet targetSet) {
+            if (activity.getDeviceProfile().isVerticalBarLayout()) {
+                return null;
+            }
+            return new LongSwipeHelper(activity, targetSet);
+        }
     }
 
     class FallbackActivityControllerHelper implements ActivityControlHelper<RecentsActivity> {
@@ -419,6 +452,17 @@
             // TODO: Remove this once b/77875376 is fixed
             return false;
         }
+
+        @Override
+        public boolean supportsLongSwipe(RecentsActivity activity) {
+            return false;
+        }
+
+        @Override
+        public LongSwipeHelper getLongSwipeController(RecentsActivity activity,
+                RemoteAnimationTargetSet targetSet) {
+            return null;
+        }
     }
 
     interface LayoutListener {
@@ -445,5 +489,7 @@
         default void onRemoteAnimationReceived(RemoteAnimationTargetSet targets) { }
 
         void createActivityController(long transitionLength);
+
+        default void onTransitionCancelled() { }
     }
 }
diff --git a/quickstep/src/com/android/quickstep/LongSwipeHelper.java b/quickstep/src/com/android/quickstep/LongSwipeHelper.java
new file mode 100644
index 0000000..4ce18b3
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/LongSwipeHelper.java
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2018 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;
+
+import static com.android.launcher3.LauncherState.ALL_APPS;
+import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.anim.Interpolators.DEACCEL;
+import static com.android.quickstep.WindowTransformSwipeHandler.MAX_SWIPE_DURATION;
+import static com.android.systemui.shared.recents.utilities.Utilities.getNextFrameNumber;
+import static com.android.systemui.shared.recents.utilities.Utilities.getSurface;
+
+import android.animation.ValueAnimator;
+import android.view.Surface;
+
+import com.android.launcher3.Launcher;
+import com.android.launcher3.R;
+import com.android.launcher3.allapps.AllAppsTransitionController;
+import com.android.launcher3.allapps.DiscoveryBounce;
+import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
+import com.android.quickstep.util.RemoteAnimationTargetSet;
+import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
+import com.android.systemui.shared.system.TransactionCompat;
+
+/**
+ * Utility class to handle long swipe from an app.
+ * This assumes the presence of Launcher activity as long swipe is not supported on the
+ * fallback activity.
+ */
+public class LongSwipeHelper {
+
+    private static final float MIN_PROGRESS_TO_ALL_APPS = 0.35f;
+    private static final float SWIPE_DURATION_MULTIPLIER =
+            Math.min(1 / MIN_PROGRESS_TO_ALL_APPS, 1 / (1 - MIN_PROGRESS_TO_ALL_APPS));
+
+    private final Launcher mLauncher;
+    private final RemoteAnimationTargetSet mTargetSet;
+
+    private float mMaxSwipeDistance = 1;
+    private AnimatorPlaybackController mAnimator;
+
+    LongSwipeHelper(Launcher launcher, RemoteAnimationTargetSet targetSet) {
+        mLauncher = launcher;
+        mTargetSet = targetSet;
+        init();
+    }
+
+    private void init() {
+        setTargetAlpha(0, true);
+
+        // Init animations
+        AllAppsTransitionController controller = mLauncher.getAllAppsController();
+        // TODO: Scale it down so that we can reach all-apps in screen space
+        mMaxSwipeDistance = Math.max(1, controller.getProgress() * controller.getShiftRange());
+        mAnimator = mLauncher.getStateManager()
+                .createAnimationToNewWorkspace(ALL_APPS, Math.round(2 * mMaxSwipeDistance));
+        mAnimator.dispatchOnStart();
+    }
+
+    public void onMove(float displacement) {
+        mAnimator.setPlayFraction(displacement / mMaxSwipeDistance);
+    }
+
+    public void destroy() {
+        // TODO: We can probably also hide the task view
+        setTargetAlpha(1, false);
+
+        mLauncher.getStateManager().goToState(OVERVIEW, false);
+    }
+
+    public void end(float velocity, boolean isFling, Runnable callback) {
+        long duration = MAX_SWIPE_DURATION;
+
+        final float currentFraction = mAnimator.getProgressFraction();
+        final boolean toAllApps;
+        float endProgress;
+
+        if (!isFling) {
+            toAllApps = currentFraction > MIN_PROGRESS_TO_ALL_APPS;
+            endProgress = toAllApps ? 1 : 0;
+
+            long expectedDuration = Math.abs(Math.round((endProgress - currentFraction)
+                    * MAX_SWIPE_DURATION * SWIPE_DURATION_MULTIPLIER));
+            duration = Math.min(MAX_SWIPE_DURATION, expectedDuration);
+        } else {
+            toAllApps = velocity < 0;
+            endProgress = toAllApps ? 1 : 0;
+
+            float minFlingVelocity = mLauncher.getResources()
+                    .getDimension(R.dimen.quickstep_fling_min_velocity);
+            if (Math.abs(velocity) > minFlingVelocity && mMaxSwipeDistance > 0) {
+                float distanceToTravel = (endProgress - currentFraction) * mMaxSwipeDistance;
+
+                // we want the page's snap velocity to approximately match the velocity at
+                // which the user flings, so we scale the duration by a value near to the
+                // derivative of the scroll interpolator at zero, ie. 2.
+                long baseDuration = Math.round(1000 * Math.abs(distanceToTravel / velocity));
+                duration = Math.min(MAX_SWIPE_DURATION, 2 * baseDuration);
+            }
+        }
+
+        mAnimator.setEndAction(() -> onSwipeAnimationComplete(toAllApps, isFling, callback));
+        ValueAnimator animator = mAnimator.getAnimationPlayer();
+        animator.setDuration(duration).setInterpolator(DEACCEL);
+        animator.setFloatValues(currentFraction, endProgress);
+        animator.start();
+    }
+
+    private void setTargetAlpha(float alpha, boolean defer) {
+        final Surface surface = getSurface(mLauncher.getDragLayer());
+        final long frameNumber = defer && surface != null ? getNextFrameNumber(surface) : -1;
+        if (defer) {
+            if (frameNumber == -1) {
+                defer = false;
+            } else {
+                mLauncher.getDragLayer().invalidate();
+            }
+        }
+
+        TransactionCompat transaction = new TransactionCompat();
+        for (RemoteAnimationTargetCompat app : mTargetSet.apps) {
+            if (!(app.isNotInRecents
+                    || app.activityType == RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME)) {
+                transaction.setAlpha(app.leash, alpha);
+                if (defer) {
+                    transaction.deferTransactionUntil(app.leash, surface, frameNumber);
+                }
+            }
+        }
+        transaction.apply();
+    }
+
+    private void onSwipeAnimationComplete(boolean toAllApps, boolean isFling, Runnable callback) {
+        mLauncher.getStateManager().goToState(toAllApps ? ALL_APPS : OVERVIEW, false);
+        if (!toAllApps) {
+            DiscoveryBounce.showForOverviewIfNeeded(mLauncher);
+        }
+
+        mLauncher.getUserEventDispatcher().logStateChangeAction(
+                isFling ? Touch.FLING : Touch.SWIPE, Direction.UP,
+                ContainerType.NAVBAR, ContainerType.APP,
+                toAllApps ? ContainerType.ALLAPPS : ContainerType.TASKSWITCHER,
+                0);
+
+        callback.run();
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/MultiStateCallback.java b/quickstep/src/com/android/quickstep/MultiStateCallback.java
index 7a74176..bda3d06 100644
--- a/quickstep/src/com/android/quickstep/MultiStateCallback.java
+++ b/quickstep/src/com/android/quickstep/MultiStateCallback.java
@@ -59,4 +59,8 @@
     public int getState() {
         return mState;
     }
+
+    public boolean hasStates(int stateMask) {
+        return (mState & stateMask) == stateMask;
+    }
 }
diff --git a/quickstep/src/com/android/quickstep/OtherActivityTouchConsumer.java b/quickstep/src/com/android/quickstep/OtherActivityTouchConsumer.java
index f7e45d3..6ce9372 100644
--- a/quickstep/src/com/android/quickstep/OtherActivityTouchConsumer.java
+++ b/quickstep/src/com/android/quickstep/OtherActivityTouchConsumer.java
@@ -22,7 +22,6 @@
 import static android.view.MotionEvent.ACTION_UP;
 import static android.view.MotionEvent.INVALID_POINTER_ID;
 
-import static com.android.systemui.shared.system.NavigationBarCompat.QUICK_STEP_DRAG_SLOP_PX;
 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_CLOSING;
 
 import android.annotation.TargetApi;
@@ -50,6 +49,7 @@
 import com.android.systemui.shared.system.ActivityManagerWrapper;
 import com.android.systemui.shared.system.AssistDataReceiver;
 import com.android.systemui.shared.system.BackgroundExecutor;
+import com.android.systemui.shared.system.NavigationBarCompat;
 import com.android.systemui.shared.system.NavigationBarCompat.HitTarget;
 import com.android.systemui.shared.system.RecentsAnimationControllerCompat;
 import com.android.systemui.shared.system.RecentsAnimationListener;
@@ -79,6 +79,7 @@
     private final PointF mLastPos = new PointF();
     private int mActivePointerId = INVALID_POINTER_ID;
     private boolean mPassedInitialSlop;
+    private int mQuickStepDragSlop;
     private float mStartDisplacement;
     private WindowTransformSwipeHandler mInteractionHandler;
     private int mDisplayRotation;
@@ -120,6 +121,7 @@
                 mDownPos.set(ev.getX(), ev.getY());
                 mLastPos.set(mDownPos);
                 mPassedInitialSlop = false;
+                mQuickStepDragSlop = NavigationBarCompat.getQuickStepDragSlopPx();
 
                 // Start the window animation on down to give more time for launcher to draw if the
                 // user didn't start the gesture over the back button
@@ -152,7 +154,8 @@
                 }
                 mLastPos.set(ev.getX(pointerIndex), ev.getY(pointerIndex));
                 float displacement = getDisplacement(ev);
-                if (!mPassedInitialSlop && Math.abs(displacement) > QUICK_STEP_DRAG_SLOP_PX) {
+                if (!mPassedInitialSlop
+                        && Math.abs(displacement) > mQuickStepDragSlop) {
                     mPassedInitialSlop = true;
                     mStartDisplacement = displacement;
 
diff --git a/quickstep/src/com/android/quickstep/OverviewCommandHelper.java b/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
index cac7606..43772fb 100644
--- a/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
+++ b/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
@@ -18,16 +18,14 @@
 import static android.content.Intent.ACTION_PACKAGE_ADDED;
 import static android.content.Intent.ACTION_PACKAGE_CHANGED;
 import static android.content.Intent.ACTION_PACKAGE_REMOVED;
-
 import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
-import static com.android.systemui.shared.system.ActivityManagerWrapper
-        .CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
-import static com.android.systemui.shared.system.PackageManagerWrapper
-        .ACTION_PREFERRED_ACTIVITY_CHANGED;
 import static com.android.launcher3.anim.Interpolators.TOUCH_RESPONSE_INTERPOLATOR;
+import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
+import static com.android.systemui.shared.system.PackageManagerWrapper.ACTION_PREFERRED_ACTIVITY_CHANGED;
 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_CLOSING;
 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_OPENING;
 
+import android.animation.Animator;
 import android.animation.AnimatorSet;
 import android.animation.ValueAnimator;
 import android.annotation.TargetApi;
@@ -37,7 +35,6 @@
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.pm.ResolveInfo;
-import android.graphics.Matrix.ScaleToFit;
 import android.graphics.Rect;
 import android.os.Build;
 import android.os.PatternMatcher;
@@ -45,17 +42,15 @@
 import android.util.Log;
 import android.view.View;
 import android.view.ViewConfiguration;
-
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.MainThreadExecutor;
-import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.quickstep.ActivityControlHelper.ActivityInitListener;
 import com.android.quickstep.ActivityControlHelper.AnimationFactory;
 import com.android.quickstep.ActivityControlHelper.FallbackActivityControllerHelper;
 import com.android.quickstep.ActivityControlHelper.LauncherActivityControllerHelper;
 import com.android.quickstep.util.ClipAnimationHelper;
-import com.android.quickstep.util.RemoteAnimationProvider;
 import com.android.quickstep.util.RemoteAnimationTargetSet;
 import com.android.quickstep.util.SysuiEventLogger;
 import com.android.quickstep.views.RecentsView;
@@ -63,7 +58,6 @@
 import com.android.systemui.shared.system.PackageManagerWrapper;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.TransactionCompat;
-
 import java.util.ArrayList;
 
 /**
@@ -210,6 +204,7 @@
 
         private ActivityInitListener mListener;
         private T mActivity;
+        private RecentsView mRecentsView;
 
         public RecentsActivityCommand() {
             mHelper = getActivityControlHelper();
@@ -271,6 +266,8 @@
                 factory.createActivityController(RECENTS_LAUNCH_DURATION);
             }
             mActivity = activity;
+            mRecentsView = mActivity.getOverviewPanel();
+            mRecentsView.setFirstTaskIconScaledDown(true /* isScaledDown */, false /* animate */);
             return false;
         }
 
@@ -278,8 +275,16 @@
             if (mListener != null) {
                 mListener.unregister();
             }
-            RemoteAnimationProvider.showOpeningTarget(targetCompats);
             AnimatorSet anim = new AnimatorSet();
+            anim.addListener(new AnimationSuccessListener() {
+                @Override
+                public void onAnimationSuccess(Animator animator) {
+                    if (mRecentsView != null) {
+                        mRecentsView.setFirstTaskIconScaledDown(false /* isScaledDown */,
+                                true /* animate */);
+                    }
+                }
+            });
             if (mActivity == null) {
                 Log.e(TAG, "Animation created, before activity");
                 anim.play(ValueAnimator.ofInt(0, 1).setDuration(100));
@@ -312,12 +317,13 @@
             mHelper.getSwipeUpDestinationAndLength(
                     mActivity.getDeviceProfile(), mActivity, targetRect);
             clipHelper.updateTargetRect(targetRect);
+            clipHelper.prepareAnimation(false /* isOpening */);
 
             ValueAnimator valueAnimator = ValueAnimator.ofFloat(0, 1);
             valueAnimator.setDuration(RECENTS_LAUNCH_DURATION);
             valueAnimator.setInterpolator(TOUCH_RESPONSE_INTERPOLATOR);
             valueAnimator.addUpdateListener((v) ->
-                clipHelper.applyTransform(targetSet, (float) v.getAnimatedValue()));
+                    clipHelper.applyTransform(targetSet, (float) v.getAnimatedValue()));
 
             if (targetSet.isAnimatingHome()) {
                 // If we are animating home, fade in the opening targets
@@ -328,9 +334,7 @@
                 valueAnimator.addUpdateListener((v) -> {
                     for (RemoteAnimationTargetCompat app : openingSet.apps) {
                         transaction.setAlpha(app.leash, (float) v.getAnimatedValue());
-                        transaction.show(app.leash);
                     }
-                    transaction.setEarlyWakeup();
                     transaction.apply();
                 });
             }
diff --git a/quickstep/src/com/android/quickstep/RecentsActivity.java b/quickstep/src/com/android/quickstep/RecentsActivity.java
index 31bead1..b780a3e 100644
--- a/quickstep/src/com/android/quickstep/RecentsActivity.java
+++ b/quickstep/src/com/android/quickstep/RecentsActivity.java
@@ -231,7 +231,7 @@
         super.onStop();
 
         // Workaround for b/78520668, explicitly trim memory once UI is hidden
-        UiFactory.onTrimMemory(this, TRIM_MEMORY_UI_HIDDEN);
+        onTrimMemory(TRIM_MEMORY_UI_HIDDEN);
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/TaskUtils.java b/quickstep/src/com/android/quickstep/TaskUtils.java
index c66f00f..559236d 100644
--- a/quickstep/src/com/android/quickstep/TaskUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskUtils.java
@@ -41,6 +41,7 @@
 import com.android.launcher3.util.ComponentKey;
 import com.android.quickstep.RecentsAnimationInterpolator.TaskWindowBounds;
 import com.android.quickstep.util.MultiValueUpdateListener;
+import com.android.quickstep.util.RemoteAnimationProvider;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.Task;
@@ -159,7 +160,6 @@
 
             @Override
             public void onUpdate(float percent) {
-
                 final Surface surface = getSurface(v);
                 final long frameNumber = surface != null ? getNextFrameNumber(surface) : -1;
                 if (frameNumber == -1) {
@@ -182,6 +182,10 @@
                 crop.set(tw.winCrop);
 
                 TransactionCompat t = new TransactionCompat();
+                if (isFirstFrame) {
+                    RemoteAnimationProvider.prepareTargetsForFirstFrame(targets, t, MODE_OPENING);
+                    isFirstFrame = false;
+                }
                 for (RemoteAnimationTargetCompat target : targets) {
                     if (target.mode == RemoteAnimationTargetCompat.MODE_OPENING) {
                         t.setAlpha(target.leash, mTaskAlpha.value);
@@ -196,15 +200,10 @@
                             t.deferTransactionUntil(target.leash, surface, frameNumber);
                         }
                     }
-                    if (isFirstFrame) {
-                        t.show(target.leash);
-                    }
                 }
-                t.setEarlyWakeup();
                 t.apply();
 
                 matrix.reset();
-                isFirstFrame = false;
             }
         });
         return appAnimator;
diff --git a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
index b8be6b8..ec50e67 100644
--- a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
@@ -31,7 +31,6 @@
 import android.annotation.TargetApi;
 import android.app.ActivityManager.RunningTaskInfo;
 import android.content.Context;
-import android.content.res.Resources;
 import android.graphics.Canvas;
 import android.graphics.Point;
 import android.graphics.Rect;
@@ -52,9 +51,7 @@
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherAppState;
-import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.logging.UserEventDispatcher;
@@ -67,6 +64,7 @@
 import com.android.quickstep.ActivityControlHelper.LayoutListener;
 import com.android.quickstep.TouchConsumer.InteractionType;
 import com.android.quickstep.util.ClipAnimationHelper;
+import com.android.quickstep.util.RemoteAnimationProvider;
 import com.android.quickstep.util.RemoteAnimationTargetSet;
 import com.android.quickstep.util.SysuiEventLogger;
 import com.android.quickstep.views.RecentsView;
@@ -103,16 +101,28 @@
     private static final int STATE_HANDLER_INVALIDATED = 1 << 7;
     private static final int STATE_GESTURE_STARTED = 1 << 8;
     private static final int STATE_GESTURE_CANCELLED = 1 << 9;
+    private static final int STATE_GESTURE_COMPLETED = 1 << 10;
 
     // States for quick switch/scrub
-    private static final int STATE_SWITCH_TO_SCREENSHOT_COMPLETE = 1 << 10;
-    private static final int STATE_QUICK_SCRUB_START = 1 << 11;
-    private static final int STATE_QUICK_SCRUB_END = 1 << 12;
+    private static final int STATE_CURRENT_TASK_FINISHED = 1 << 11;
+    private static final int STATE_QUICK_SCRUB_START = 1 << 12;
+    private static final int STATE_QUICK_SCRUB_END = 1 << 13;
+
+    private static final int STATE_CAPTURE_SCREENSHOT = 1 << 14;
+    private static final int STATE_SCREENSHOT_CAPTURED = 1 << 15;
 
     private static final int LAUNCHER_UI_STATES =
             STATE_LAUNCHER_PRESENT | STATE_LAUNCHER_DRAWN | STATE_ACTIVITY_MULTIPLIER_COMPLETE
             | STATE_LAUNCHER_STARTED;
 
+    private static final int LONG_SWIPE_ENTER_STATE =
+            STATE_ACTIVITY_MULTIPLIER_COMPLETE | STATE_LAUNCHER_STARTED
+                    | STATE_APP_CONTROLLER_RECEIVED;
+
+    private static final int LONG_SWIPE_START_STATE =
+            STATE_ACTIVITY_MULTIPLIER_COMPLETE | STATE_LAUNCHER_STARTED
+                    | STATE_APP_CONTROLLER_RECEIVED | STATE_SCREENSHOT_CAPTURED;
+
     // For debugging, keep in sync with above states
     private static final String[] STATES = new String[] {
             "STATE_LAUNCHER_PRESENT",
@@ -125,14 +135,16 @@
             "STATE_HANDLER_INVALIDATED",
             "STATE_GESTURE_STARTED",
             "STATE_GESTURE_CANCELLED",
-            "STATE_SWITCH_TO_SCREENSHOT_COMPLETE",
-            "STATE_QUICK_SWITCH",
+            "STATE_GESTURE_COMPLETED",
+            "STATE_CURRENT_TASK_FINISHED",
             "STATE_QUICK_SCRUB_START",
-            "STATE_QUICK_SCRUB_END"
+            "STATE_QUICK_SCRUB_END",
+            "STATE_CAPTURE_SCREENSHOT",
+            "STATE_SCREENSHOT_CAPTURED",
     };
 
-    private static final long MAX_SWIPE_DURATION = 350;
-    private static final long MIN_SWIPE_DURATION = 80;
+    public static final long MAX_SWIPE_DURATION = 350;
+    public static final long MIN_SWIPE_DURATION = 80;
 
     private static final float MIN_PROGRESS_FOR_OVERVIEW = 0.5f;
     private static final float SWIPE_DURATION_MULTIPLIER =
@@ -151,7 +163,7 @@
     // visible.
     private final AnimatedFloat mCurrentShift = new AnimatedFloat(this::updateFinalShift);
 
-    private final MainThreadExecutor mMainExecutor = new MainThreadExecutor();
+    private final Handler mMainThreadHandler = new Handler(Looper.getMainLooper());
 
     private final Context mContext;
     private final int mRunningTaskId;
@@ -171,7 +183,6 @@
 
     private boolean mWasLauncherAlreadyVisible;
 
-    private float mCurrentDisplacement;
     private boolean mGestureStarted;
     private int mLogAction = Touch.SWIPE;
     private float mCurrentQuickScrubProgress;
@@ -185,6 +196,11 @@
     private final long mTouchTimeMs;
     private long mLauncherFrameDrawnTime;
 
+    private boolean mBgLongSwipeMode = false;
+    private boolean mUiLongSwipeMode = false;
+    private float mLongSwipeDisplacement = 0;
+    private LongSwipeHelper mLongSwipeController;
+
     WindowTransformSwipeHandler(RunningTaskInfo runningTaskInfo, Context context, long touchTimeMs,
             ActivityControlHelper<T> controller) {
         mContext = context;
@@ -194,10 +210,10 @@
         mActivityInitListener = mActivityControlHelper
                 .createActivityInitListener(this::onActivityInit);
 
+        initStateCallbacks();
         // Register the input consumer on the UI thread, to ensure that it runs after any pending
         // unregister calls
-        mMainExecutor.execute(mInputConsumer::registerInputConsumer);
-        initStateCallbacks();
+        executeOnUiThread(mInputConsumer::registerInputConsumer);
     }
 
     private void initStateCallbacks() {
@@ -226,12 +242,18 @@
                 this::resumeLastTask);
         mStateCallback.addCallback(STATE_LAUNCHER_PRESENT | STATE_APP_CONTROLLER_RECEIVED
                         | STATE_ACTIVITY_MULTIPLIER_COMPLETE
-                        | STATE_SCALED_CONTROLLER_RECENTS,
+                        | STATE_CAPTURE_SCREENSHOT,
                 this::switchToScreenshot);
+
+        mStateCallback.addCallback(STATE_SCREENSHOT_CAPTURED | STATE_GESTURE_COMPLETED
+                        | STATE_SCALED_CONTROLLER_RECENTS,
+                this::finishCurrentTransitionToHome);
+
         mStateCallback.addCallback(STATE_LAUNCHER_PRESENT | STATE_APP_CONTROLLER_RECEIVED
                         | STATE_ACTIVITY_MULTIPLIER_COMPLETE
                         | STATE_SCALED_CONTROLLER_RECENTS
-                        | STATE_SWITCH_TO_SCREENSHOT_COMPLETE,
+                        | STATE_CURRENT_TASK_FINISHED
+                        | STATE_GESTURE_COMPLETED,
                 this::setupLauncherUiAfterSwipeUpAnimation);
 
         mStateCallback.addCallback(STATE_LAUNCHER_PRESENT | STATE_SCALED_CONTROLLER_APP,
@@ -240,21 +262,34 @@
         mStateCallback.addCallback(STATE_HANDLER_INVALIDATED, this::invalidateHandler);
         mStateCallback.addCallback(STATE_LAUNCHER_PRESENT | STATE_HANDLER_INVALIDATED,
                 this::invalidateHandlerWithLauncher);
+        mStateCallback.addCallback(STATE_LAUNCHER_PRESENT | STATE_HANDLER_INVALIDATED
+                | STATE_SCALED_CONTROLLER_APP,
+                this::notifyTransitionCancelled);
 
         mStateCallback.addCallback(STATE_LAUNCHER_STARTED | STATE_QUICK_SCRUB_START,
                 this::onQuickScrubStart);
         mStateCallback.addCallback(STATE_LAUNCHER_STARTED | STATE_QUICK_SCRUB_START
                 | STATE_SCALED_CONTROLLER_RECENTS, this::onFinishedTransitionToQuickScrub);
-        mStateCallback.addCallback(STATE_LAUNCHER_STARTED | STATE_SWITCH_TO_SCREENSHOT_COMPLETE
+        mStateCallback.addCallback(STATE_LAUNCHER_STARTED | STATE_CURRENT_TASK_FINISHED
                 | STATE_QUICK_SCRUB_END, this::switchToFinalAppAfterQuickScrub);
+
+        mStateCallback.addCallback(LONG_SWIPE_ENTER_STATE, this::checkLongSwipeCanEnter);
+        mStateCallback.addCallback(LONG_SWIPE_START_STATE, this::checkLongSwipeCanStart);
+    }
+
+    private void executeOnUiThread(Runnable action) {
+        if (Looper.myLooper() == mMainThreadHandler.getLooper()) {
+            action.run();
+        } else {
+            postAsyncCallback(mMainThreadHandler, action);
+        }
     }
 
     private void setStateOnUiThread(int stateFlag) {
-        Handler handler = mMainExecutor.getHandler();
-        if (Looper.myLooper() == handler.getLooper()) {
+        if (Looper.myLooper() == mMainThreadHandler.getLooper()) {
             mStateCallback.setState(stateFlag);
         } else {
-            postAsyncCallback(handler, () -> mStateCallback.setState(stateFlag));
+            postAsyncCallback(mMainThreadHandler, () -> mStateCallback.setState(stateFlag));
         }
     }
 
@@ -321,7 +356,7 @@
         if (mActivity != activity) {
             return;
         }
-        if ((mStateCallback.getState() & STATE_HANDLER_INVALIDATED) != 0) {
+        if (mStateCallback.hasStates(STATE_HANDLER_INVALIDATED)) {
             return;
         }
 
@@ -408,7 +443,7 @@
         }
         mInteractionType = interactionType;
 
-        setStateOnUiThread(STATE_QUICK_SCRUB_START);
+        setStateOnUiThread(STATE_QUICK_SCRUB_START | STATE_GESTURE_COMPLETED);
 
         // Start the window animation without waiting for launcher.
         animateToProgress(1f, QUICK_SCRUB_START_DURATION, TOUCH_RESPONSE_INTERPOLATOR);
@@ -416,11 +451,26 @@
 
     @WorkerThread
     public void updateDisplacement(float displacement) {
-        mCurrentDisplacement = displacement;
+        // We are moving in the negative x/y direction
+        displacement = -displacement;
+        if (displacement > mTransitionDragLength) {
+            mCurrentShift.updateValue(1);
 
-        float translation = Utilities.boundToRange(-mCurrentDisplacement, 0, mTransitionDragLength);
-        float shift = mTransitionDragLength == 0 ? 0 : translation / mTransitionDragLength;
-        mCurrentShift.updateValue(shift);
+            if (!mBgLongSwipeMode) {
+                mBgLongSwipeMode = true;
+                executeOnUiThread(this::onLongSwipeEnabledUi);
+            }
+            mLongSwipeDisplacement = displacement - mTransitionDragLength;
+            executeOnUiThread(this::onLongSwipeDisplacementUpdated);
+        } else {
+            if (mBgLongSwipeMode) {
+                mBgLongSwipeMode = false;
+                executeOnUiThread(this::onLongSwipeDisabledUi);
+            }
+            float translation = Math.max(displacement, 0);
+            float shift = mTransitionDragLength == 0 ? 0 : translation / mTransitionDragLength;
+            mCurrentShift.updateValue(shift);
+        }
     }
 
     /**
@@ -448,20 +498,18 @@
                 float interpolated = interpolator.getInterpolation(shift);
                 mClipAnimationHelper.applyTransform(
                         mRecentsAnimationWrapper.targetSet, interpolated);
+
+                // TODO: This logic is spartanic!
+                boolean passedThreshold = shift > 0.12f;
+                mRecentsAnimationWrapper.setAnimationTargetsBehindSystemBars(!passedThreshold);
+                if (mActivityControlHelper.shouldMinimizeSplitScreen()) {
+                    mRecentsAnimationWrapper
+                            .setSplitScreenMinimizedForTransaction(passedThreshold);
+                }
             }
         }
 
-        if (mRecentsAnimationWrapper.controller != null) {
-            // TODO: This logic is spartanic!
-            boolean passedThreshold = shift > 0.12f;
-            mRecentsAnimationWrapper.setAnimationTargetsBehindSystemBars(!passedThreshold);
-            if (mActivityControlHelper.shouldMinimizeSplitScreen()) {
-                mRecentsAnimationWrapper
-                        .setSplitScreenMinimizedForTransaction(passedThreshold);
-            }
-        }
-
-        mMainExecutor.execute(this::updateFinalShiftUi);
+        executeOnUiThread(this::updateFinalShiftUi);
     }
 
     private void updateFinalShiftUi() {
@@ -498,9 +546,9 @@
         if (runningTaskTarget != null) {
             mClipAnimationHelper.updateSource(overviewStackBounds, runningTaskTarget);
         }
+        mClipAnimationHelper.prepareAnimation(false /* isOpening */);
         initTransitionEndpoints(dp);
 
-
         mRecentsAnimationWrapper.setController(controller, targets);
         setStateOnUiThread(STATE_APP_CONTROLLER_RECEIVED);
     }
@@ -539,10 +587,21 @@
 
     @WorkerThread
     public void onGestureEnded(float endVelocity) {
-        Resources res = mContext.getResources();
-        float flingThreshold = res.getDimension(R.dimen.quickstep_fling_threshold_velocity);
+        float flingThreshold = mContext.getResources()
+                .getDimension(R.dimen.quickstep_fling_threshold_velocity);
         boolean isFling = mGestureStarted && Math.abs(endVelocity) > flingThreshold;
+        setStateOnUiThread(STATE_GESTURE_COMPLETED);
 
+        mLogAction = isFling ? Touch.FLING : Touch.SWIPE;
+
+        if (mBgLongSwipeMode) {
+            executeOnUiThread(() -> onLongSwipeGestureFinishUi(endVelocity, isFling));
+        } else {
+            handleNormalGestureEnd(endVelocity, isFling);
+        }
+    }
+
+    private void handleNormalGestureEnd(float endVelocity, boolean isFling) {
         long duration = MAX_SWIPE_DURATION;
         final float endShift;
         if (!isFling) {
@@ -550,10 +609,10 @@
             long expectedDuration = Math.abs(Math.round((endShift - mCurrentShift.value)
                     * MAX_SWIPE_DURATION * SWIPE_DURATION_MULTIPLIER));
             duration = Math.min(MAX_SWIPE_DURATION, expectedDuration);
-            mLogAction = Touch.SWIPE;
         } else {
             endShift = endVelocity < 0 ? 1 : 0;
-            float minFlingVelocity = res.getDimension(R.dimen.quickstep_fling_min_velocity);
+            float minFlingVelocity = mContext.getResources()
+                    .getDimension(R.dimen.quickstep_fling_min_velocity);
             if (Math.abs(endVelocity) > minFlingVelocity && mTransitionDragLength > 0) {
                 float distanceToTravel = (endShift - mCurrentShift.value) * mTransitionDragLength;
 
@@ -563,7 +622,6 @@
                 long baseDuration = Math.round(1000 * Math.abs(distanceToTravel / endVelocity));
                 duration = Math.min(MAX_SWIPE_DURATION, 2 * baseDuration);
             }
-            mLogAction = Touch.FLING;
         }
 
         animateToProgress(endShift, duration, DEACCEL);
@@ -593,8 +651,9 @@
         anim.addListener(new AnimationSuccessListener() {
             @Override
             public void onAnimationSuccess(Animator animator) {
-                setStateOnUiThread(mIsGoingToHome ?
-                        STATE_SCALED_CONTROLLER_RECENTS : STATE_SCALED_CONTROLLER_APP);
+                setStateOnUiThread(mIsGoingToHome
+                        ? (STATE_SCALED_CONTROLLER_RECENTS | STATE_CAPTURE_SCREENSHOT)
+                        : STATE_SCALED_CONTROLLER_APP);
             }
         });
         anim.start();
@@ -633,6 +692,10 @@
         mRecentsView.setFirstTaskIconScaledDown(false /* isScaledDown */, false /* animate */);
     }
 
+    private void notifyTransitionCancelled() {
+        mAnimationFactory.onTransitionCancelled();
+    }
+
     private void resetStateForAnimationCancel() {
         boolean wasVisible = mWasLauncherAlreadyVisible || mGestureStarted;
         mActivityControlHelper.onTransitionCancelled(mActivity, wasVisible);
@@ -646,13 +709,6 @@
 
     private void switchToScreenshot() {
         boolean finishTransitionPosted = false;
-        final Runnable finishTransitionRunnable = () -> {
-            synchronized (mRecentsAnimationWrapper) {
-                mRecentsAnimationWrapper.finish(true /* toHome */,
-                        () -> setStateOnUiThread(STATE_SWITCH_TO_SCREENSHOT_COMPLETE));
-            }
-        };
-
         synchronized (mRecentsAnimationWrapper) {
             if (mRecentsAnimationWrapper.controller != null) {
                 // Update the screenshot of the task
@@ -667,7 +723,7 @@
 
                         @Override
                         public void onPostDraw(Canvas canvas) {
-                            finishTransitionRunnable.run();
+                            setStateOnUiThread(STATE_SCREENSHOT_CAPTURED);
                             detach();
                         }
                     }.attach();
@@ -675,8 +731,15 @@
             }
         }
         if (!finishTransitionPosted) {
-            // If we haven't posted the transition end runnable, run it now
-            finishTransitionRunnable.run();
+            // If we haven't posted a draw callback, set the state immediately.
+            setStateOnUiThread(STATE_SCREENSHOT_CAPTURED);
+        }
+    }
+
+    private void finishCurrentTransitionToHome() {
+        synchronized (mRecentsAnimationWrapper) {
+            mRecentsAnimationWrapper.finish(true /* toHome */,
+                    () -> setStateOnUiThread(STATE_CURRENT_TASK_FINISHED));
         }
     }
 
@@ -773,4 +836,64 @@
     public void setGestureEndCallback(Runnable gestureEndCallback) {
         mGestureEndCallback = gestureEndCallback;
     }
+
+    // Handling long swipe
+    private void onLongSwipeEnabledUi() {
+        mUiLongSwipeMode = true;
+        checkLongSwipeCanEnter();
+        checkLongSwipeCanStart();
+    }
+
+    private void onLongSwipeDisabledUi() {
+        mUiLongSwipeMode = false;
+
+        if (mLongSwipeController != null) {
+            mLongSwipeController.destroy();
+
+            // Rebuild animations
+            buildAnimationController();
+        }
+    }
+
+    private void onLongSwipeDisplacementUpdated() {
+        if (!mUiLongSwipeMode || mLongSwipeController == null) {
+            return;
+        }
+
+        mLongSwipeController.onMove(mLongSwipeDisplacement);
+    }
+
+    private void checkLongSwipeCanEnter() {
+        if (!mUiLongSwipeMode || !mStateCallback.hasStates(LONG_SWIPE_ENTER_STATE)
+                || !mActivityControlHelper.supportsLongSwipe(mActivity)) {
+            return;
+        }
+
+        // We are entering long swipe mode, make sure the screen shot is captured.
+        mStateCallback.setState(STATE_CAPTURE_SCREENSHOT);
+
+    }
+
+    private void checkLongSwipeCanStart() {
+        if (!mUiLongSwipeMode || !mStateCallback.hasStates(LONG_SWIPE_START_STATE)
+                || !mActivityControlHelper.supportsLongSwipe(mActivity)) {
+            return;
+        }
+
+        mLongSwipeController = mActivityControlHelper.getLongSwipeController(
+                mActivity, mRecentsAnimationWrapper.targetSet);
+        onLongSwipeDisplacementUpdated();
+    }
+
+    private void onLongSwipeGestureFinishUi(float velocity, boolean isFling) {
+        if (!mUiLongSwipeMode || mLongSwipeController == null) {
+            handleNormalGestureEnd(velocity, isFling);
+            return;
+        }
+
+        finishCurrentTransitionToHome();
+        mLongSwipeController.end(velocity, isFling,
+                () -> setStateOnUiThread(STATE_HANDLER_INVALIDATED));
+
+    }
 }
diff --git a/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java b/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
index 057e0c4..8b9903d 100644
--- a/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
+++ b/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
@@ -17,6 +17,8 @@
 
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.anim.Interpolators.SCROLL;
+import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_CLOSING;
+import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_OPENING;
 
 import android.graphics.Canvas;
 import android.graphics.Matrix;
@@ -24,14 +26,17 @@
 import android.graphics.PointF;
 import android.graphics.Rect;
 import android.graphics.RectF;
+import android.os.RemoteException;
 
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.views.BaseDragLayer;
+import com.android.quickstep.RecentsModel;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskThumbnailView;
+import com.android.systemui.shared.recents.ISystemUiProxy;
 import com.android.systemui.shared.recents.utilities.RectFEvaluator;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.TransactionCompat;
@@ -68,6 +73,11 @@
 
     private float mTargetScale = 1f;
 
+    // Whether to boost the opening animation target layers, or the closing
+    private int mBoostModeTargetLayers = -1;
+    // Wether or not applyTransform has been called yet since prepareAnimation()
+    private boolean mIsFirstFrame = true;
+
     public void updateSource(Rect homeStackBounds, RemoteAnimationTargetCompat target) {
         mHomeStackBounds.set(homeStackBounds);
         mSourceInsets.set(target.contentInsets);
@@ -101,6 +111,11 @@
         mSourceRect.set(scaledTargetRect);
     }
 
+    public void prepareAnimation(boolean isOpening) {
+        mIsFirstFrame = true;
+        mBoostModeTargetLayers = isOpening ? MODE_OPENING : MODE_CLOSING;
+    }
+
     public void applyTransform(RemoteAnimationTargetSet targetSet, float progress) {
         RectF currentRect;
         mTmpRectF.set(mTargetRect);
@@ -121,6 +136,11 @@
                 (mSourceStackBounds.height() - (mSourceWindowClipInsets.bottom * progress));
 
         TransactionCompat transaction = new TransactionCompat();
+        if (mIsFirstFrame) {
+            RemoteAnimationProvider.prepareTargetsForFirstFrame(targetSet.unfilteredApps,
+                    transaction, mBoostModeTargetLayers);
+            mIsFirstFrame = false;
+        }
         for (RemoteAnimationTargetCompat app : targetSet.apps) {
             if (app.activityType != RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
                 mTmpMatrix.setRectToRect(mSourceRect, currentRect, ScaleToFit.FILL);
@@ -133,9 +153,7 @@
                     || app.activityType == RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
                 transaction.setAlpha(app.leash, 1 - progress);
             }
-            transaction.show(app.leash);
         }
-        transaction.setEarlyWakeup();
         transaction.apply();
     }
 
@@ -156,27 +174,7 @@
         mHomeStackBounds.offset(pos[0], pos[1]);
 
         if (rv.shouldUseMultiWindowTaskSizeStrategy()) {
-            // TODO: Fetch multi-window target bounds from system-ui
-            DeviceProfile fullDp = activity.getDeviceProfile().getFullScreenProfile();
-            // Use availableWidthPx and availableHeightPx instead of widthPx and heightPx to
-            // account for system insets
-            int taskWidth = fullDp.availableWidthPx;
-            int taskHeight = fullDp.availableHeightPx;
-            int halfDividerSize = activity.getResources()
-                    .getDimensionPixelSize(R.dimen.multi_window_task_divider_size) / 2;
-
-            Rect insets = new Rect();
-            WindowManagerWrapper.getInstance().getStableInsets(insets);
-            if (fullDp.isLandscape) {
-                taskWidth = taskWidth / 2 - halfDividerSize;
-            } else {
-                taskHeight = taskHeight / 2 - halfDividerSize;
-            }
-
-            mSourceStackBounds.set(0, 0, taskWidth, taskHeight);
-            // Align the task to bottom right (probably not true for seascape).
-            mSourceStackBounds.offset(insets.left + fullDp.availableWidthPx - taskWidth,
-                    insets.top + fullDp.availableHeightPx - taskHeight);
+            updateStackBoundsToMultiWindowTaskSize(activity);
         } else {
             mSourceStackBounds.set(mHomeStackBounds);
             mSourceInsets.set(activity.getDeviceProfile().getInsets());
@@ -194,6 +192,41 @@
         mSourceWindowClipInsets.bottom = mSourceWindowClipInsets.bottom * scale;
     }
 
+    private void updateStackBoundsToMultiWindowTaskSize(BaseDraggingActivity activity) {
+        ISystemUiProxy sysUiProxy = RecentsModel.getInstance(activity).getSystemUiProxy();
+        if (sysUiProxy != null) {
+            try {
+                mSourceStackBounds.set(sysUiProxy.getNonMinimizedSplitScreenSecondaryBounds());
+                return;
+            } catch (RemoteException e) {
+                // Use half screen size
+            }
+        }
+
+        // Assume that the task size is half screen size (minus the insets and the divider size)
+        DeviceProfile fullDp = activity.getDeviceProfile().getFullScreenProfile();
+        // Use availableWidthPx and availableHeightPx instead of widthPx and heightPx to
+        // account for system insets
+        int taskWidth = fullDp.availableWidthPx;
+        int taskHeight = fullDp.availableHeightPx;
+        int halfDividerSize = activity.getResources()
+                .getDimensionPixelSize(R.dimen.multi_window_task_divider_size) / 2;
+
+        Rect insets = new Rect();
+        WindowManagerWrapper.getInstance().getStableInsets(insets);
+        if (fullDp.isLandscape) {
+            taskWidth = taskWidth / 2 - halfDividerSize;
+        } else {
+            taskHeight = taskHeight / 2 - halfDividerSize;
+        }
+
+        mSourceStackBounds.set(0, 0, taskWidth, taskHeight);
+        // Align the task to bottom right (probably not true for seascape).
+        mSourceStackBounds.offset(insets.left + fullDp.availableWidthPx - taskWidth,
+                insets.top + fullDp.availableHeightPx - taskHeight);
+    }
+
+
     public void drawForProgress(TaskThumbnailView ttv, Canvas canvas, float progress) {
         RectF currentRect =  mRectFEvaluator.evaluate(progress, mSourceRect, mTargetRect);
         canvas.translate(mSourceStackBounds.left - mHomeStackBounds.left,
diff --git a/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java b/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
index dfe1984..7fc3efb 100644
--- a/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
+++ b/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
@@ -44,15 +44,22 @@
                 new RemoteAnimationAdapterCompat(runner, duration, 0));
     }
 
-    static void showOpeningTarget(RemoteAnimationTargetCompat[] targetCompats) {
-        TransactionCompat t = new TransactionCompat();
-        for (RemoteAnimationTargetCompat target : targetCompats) {
-            int layer = target.mode == RemoteAnimationTargetCompat.MODE_CLOSING
+    /**
+     * Prepares the given {@param targets} for a remote animation, and should be called with the
+     * transaction from the first frame of animation.
+     *
+     * @param boostModeTargets The mode indicating which targets to boost in z-order above other
+     *                         targets.
+     */
+    static void prepareTargetsForFirstFrame(RemoteAnimationTargetCompat[] targets,
+            TransactionCompat t, int boostModeTargets) {
+        for (RemoteAnimationTargetCompat target : targets) {
+            int layer = target.mode == boostModeTargets
                     ? Integer.MAX_VALUE
                     : target.prefixOrderIndex;
             t.setLayer(target.leash, layer);
             t.show(target.leash);
         }
-        t.apply();
+        t.setEarlyWakeup();
     }
 }
diff --git a/quickstep/src/com/android/quickstep/util/RemoteAnimationTargetSet.java b/quickstep/src/com/android/quickstep/util/RemoteAnimationTargetSet.java
index 97d7fb9..04b8be5 100644
--- a/quickstep/src/com/android/quickstep/util/RemoteAnimationTargetSet.java
+++ b/quickstep/src/com/android/quickstep/util/RemoteAnimationTargetSet.java
@@ -24,6 +24,7 @@
  */
 public class RemoteAnimationTargetSet {
 
+    public final RemoteAnimationTargetCompat[] unfilteredApps;
     public final RemoteAnimationTargetCompat[] apps;
 
     public RemoteAnimationTargetSet(RemoteAnimationTargetCompat[] apps, int targetMode) {
@@ -36,6 +37,7 @@
             }
         }
 
+        this.unfilteredApps = apps;
         this.apps = filteredApps.toArray(new RemoteAnimationTargetCompat[filteredApps.size()]);
     }
 
diff --git a/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java b/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
index d69beb6..90749eb 100644
--- a/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
@@ -35,6 +35,7 @@
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
+import com.android.quickstep.OverviewInteractionState;
 import com.android.quickstep.util.LayoutUtils;
 
 /**
@@ -118,6 +119,12 @@
     public AnimatorSet createAdjacentPageAnimForTaskLaunch(TaskView tv) {
         AnimatorSet anim = super.createAdjacentPageAnimForTaskLaunch(tv);
 
+        if (!OverviewInteractionState.getInstance(mActivity).isSwipeUpGestureEnabled()) {
+            // Hotseat doesn't move when opening recents with the button,
+            // so don't animate it here either.
+            return anim;
+        }
+
         float allAppsProgressOffscreen = ALL_APPS_PROGRESS_OFF_SCREEN;
         LauncherState state = mActivity.getStateManager().getState();
         if ((state.getVisibleElements(mActivity) & ALL_APPS_HEADER_EXTRA) != 0) {
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index b60fda9..51b787b 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -105,6 +105,8 @@
     public static final boolean FLIP_RECENTS = true;
     private static final int DISMISS_TASK_DURATION = 300;
 
+    private static final float[] sTempFloatArray = new float[3];
+
     protected final T mActivity;
     private final QuickScrubController mQuickScrubController;
     private final float mFastFlingVelocity;
@@ -996,11 +998,10 @@
     private float[] getAdjacentScaleAndTranslation(TaskView currTask, TaskView adjacentTask,
             float currTaskToScale, float currTaskToTranslationY) {
         float displacement = currTask.getWidth() * (currTaskToScale - currTask.getCurveScale());
-        return new float[] {
-                currTaskToScale * adjacentTask.getCurveScale(),
-                mIsRtl ? -displacement : displacement,
-                currTaskToTranslationY
-        };
+        sTempFloatArray[0] = currTaskToScale * adjacentTask.getCurveScale();
+        sTempFloatArray[1] = mIsRtl ? -displacement : displacement;
+        sTempFloatArray[2] = currTaskToTranslationY;
+        return sTempFloatArray;
     }
 
     @Override
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 1285a2b..2c08169 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -738,7 +738,7 @@
         getStateManager().moveToRestState();
 
         // Workaround for b/78520668, explicitly trim memory once UI is hidden
-        UiFactory.onTrimMemory(this, TRIM_MEMORY_UI_HIDDEN);
+        onTrimMemory(TRIM_MEMORY_UI_HIDDEN);
     }
 
     @Override
diff --git a/src/com/android/launcher3/SecondaryDropTarget.java b/src/com/android/launcher3/SecondaryDropTarget.java
index 024b4eb..7870af9 100644
--- a/src/com/android/launcher3/SecondaryDropTarget.java
+++ b/src/com/android/launcher3/SecondaryDropTarget.java
@@ -52,7 +52,7 @@
 
     private final Alarm mCacheExpireAlarm;
 
-    private int mCurrentAccessibilityAction = -1;
+    protected int mCurrentAccessibilityAction = -1;
     public SecondaryDropTarget(Context context, AttributeSet attrs) {
         this(context, attrs, 0);
     }
@@ -70,7 +70,7 @@
         setupUi(UNINSTALL);
     }
 
-    private void setupUi(int action) {
+    protected void setupUi(int action) {
         if (action == mCurrentAccessibilityAction) {
             return;
         }
diff --git a/src/com/android/launcher3/WidgetPreviewLoader.java b/src/com/android/launcher3/WidgetPreviewLoader.java
index a658d58..7af4bf9 100644
--- a/src/com/android/launcher3/WidgetPreviewLoader.java
+++ b/src/com/android/launcher3/WidgetPreviewLoader.java
@@ -338,7 +338,8 @@
         int previewWidth;
         int previewHeight;
 
-        if (widgetPreviewExists) {
+        if (widgetPreviewExists && drawable.getIntrinsicWidth() > 0
+                && drawable.getIntrinsicHeight() > 0) {
             previewWidth = drawable.getIntrinsicWidth();
             previewHeight = drawable.getIntrinsicHeight();
         } else {
@@ -358,8 +359,8 @@
             scale = maxPreviewWidth / (float) (previewWidth);
         }
         if (scale != 1f) {
-            previewWidth = (int) (scale * previewWidth);
-            previewHeight = (int) (scale * previewHeight);
+            previewWidth = Math.max((int)(scale * previewWidth), 1);
+            previewHeight = Math.max((int)(scale * previewHeight), 1);
         }
 
         // If a bitmap is passed in, we use it; otherwise, we create a bitmap of the right size