diff --git a/AndroidManifest-common.xml b/AndroidManifest-common.xml
index c24850d..fe8d65e 100644
--- a/AndroidManifest-common.xml
+++ b/AndroidManifest-common.xml
@@ -20,7 +20,6 @@
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.android.launcher3">
-    <uses-sdk android:targetSdkVersion="23" android:minSdkVersion="21"/>
 
     <!--
     The manifest defines the common entries that should be present in any derivative of Launcher3.
diff --git a/build.gradle b/build.gradle
index 0030b8b..4ae6600 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,14 +1,16 @@
 buildscript {
     repositories {
         mavenCentral()
-        jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
-        classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.0'
+        classpath 'com.android.tools.build:gradle:3.2.0-alpha12'
+        classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.3'
     }
 }
 
+final String SUPPORT_LIBS_VERSION = '28.0.0-SNAPSHOT'
+
 apply plugin: 'com.android.application'
 apply plugin: 'com.google.protobuf'
 
@@ -23,6 +25,7 @@
         versionName "1.0"
 
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        vectorDrawables.useSupportLibrary = true
     }
     buildTypes {
         debug {
@@ -30,18 +33,28 @@
         }
     }
 
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    flavorDimensions "default"
+
     productFlavors {
         aosp {
+            dimension "default"
             applicationId 'com.android.launcher3'
             testApplicationId 'com.android.launcher3.tests'
         }
 
         l3go {
+            dimension "default"
             applicationId 'com.android.launcher3'
             testApplicationId 'com.android.launcher3.tests'
         }
 
         quickstep {
+            dimension "default"
             applicationId 'com.android.launcher3'
             testApplicationId 'com.android.launcher3.tests'
         }
@@ -98,27 +111,28 @@
 }
 
 repositories {
+    maven { url "../../../prebuilts/fullsdk-darwin/extras/android/m2repository" }
+    maven { url "../../../prebuilts/fullsdk-linux/extras/android/m2repository" }
     mavenCentral()
-    jcenter()
+    google()
 }
 
-final String SUPPORT_LIBS_VERSION = '28.0.0-SNAPSHOT'
 dependencies {
-    compile "com.android.support:support-v4:${SUPPORT_LIBS_VERSION}"
-    compile "com.android.support:support-dynamic-animation:${SUPPORT_LIBS_VERSION}"
-    compile "com.android.support:recyclerview-v7:${SUPPORT_LIBS_VERSION}"
-    compile 'com.google.protobuf.nano:protobuf-javanano:3.0.0-alpha-7'
+    implementation "com.android.support:support-v4:${SUPPORT_LIBS_VERSION}"
+    implementation "com.android.support:support-dynamic-animation:${SUPPORT_LIBS_VERSION}"
+    implementation "com.android.support:recyclerview-v7:${SUPPORT_LIBS_VERSION}"
+    implementation 'com.google.protobuf.nano:protobuf-javanano:3.0.0-alpha-7'
 
-    quickstepCompile fileTree(dir: "quickstep/libs", include: 'sysui_shared.jar')
+    quickstepImplementation fileTree(dir: "quickstep/libs", include: 'sysui_shared.jar')
 
-    testCompile 'junit:junit:4.12'
-    androidTestCompile "org.mockito:mockito-core:1.9.5"
-    androidTestCompile 'com.google.dexmaker:dexmaker:1.2'
-    androidTestCompile 'com.google.dexmaker:dexmaker-mockito:1.2'
-    androidTestCompile 'com.android.support.test:runner:1.0.0'
-    androidTestCompile 'com.android.support.test:rules:1.0.0'
-    androidTestCompile 'com.android.support.test.uiautomator:uiautomator-v18:2.1.2'
-    androidTestCompile "com.android.support:support-annotations:${SUPPORT_LIBS_VERSION}"
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation "org.mockito:mockito-core:1.9.5"
+    androidTestImplementation 'com.google.dexmaker:dexmaker:1.2'
+    androidTestImplementation 'com.google.dexmaker:dexmaker-mockito:1.2'
+    androidTestImplementation 'com.android.support.test:runner:1.0.0'
+    androidTestImplementation 'com.android.support.test:rules:1.0.0'
+    androidTestImplementation 'com.android.support.test.uiautomator:uiautomator-v18:2.1.2'
+    androidTestImplementation "com.android.support:support-annotations:${SUPPORT_LIBS_VERSION}"
 }
 
 protobuf {
diff --git a/quickstep/AndroidManifest.xml b/quickstep/AndroidManifest.xml
index f62d1d6..bab2cd7 100644
--- a/quickstep/AndroidManifest.xml
+++ b/quickstep/AndroidManifest.xml
@@ -21,8 +21,6 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.android.launcher3" >
 
-    <uses-sdk android:targetSdkVersion="23" android:minSdkVersion="21"/>
-
     <uses-permission android:name="android.permission.CONTROL_REMOTE_APP_TRANSITION_ANIMATIONS" />
     <application
         android:backupAgent="com.android.launcher3.LauncherBackupAgent"
diff --git a/quickstep/libs/sysui_shared.jar b/quickstep/libs/sysui_shared.jar
index 19a9b17..0adc83a 100644
--- a/quickstep/libs/sysui_shared.jar
+++ b/quickstep/libs/sysui_shared.jar
Binary files differ
diff --git a/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java b/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java
index c985354..7d62f52 100644
--- a/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java
+++ b/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java
@@ -16,6 +16,7 @@
 package com.android.launcher3;
 
 import static com.android.launcher3.Utilities.postAsyncCallback;
+import static com.android.systemui.shared.recents.utilities.Utilities.postAtFrontOfQueueAsynchronously;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -35,20 +36,31 @@
     private static final int REFRESH_RATE_MS = 16;
 
     private final Handler mHandler;
+    private final boolean mStartAtFrontOfQueue;
     private AnimationResult mAnimationResult;
 
-    public LauncherAnimationRunner(Handler handler) {
+    /**
+     * @param startAtFrontOfQueue If true, the animation start will be posted at the front of the
+     *                            queue to minimize latency.
+     */
+    public LauncherAnimationRunner(Handler handler, boolean startAtFrontOfQueue) {
         mHandler = handler;
+        mStartAtFrontOfQueue = startAtFrontOfQueue;
     }
 
     @BinderThread
     @Override
     public void onAnimationStart(RemoteAnimationTargetCompat[] targetCompats, Runnable runnable) {
-        postAsyncCallback(mHandler, () -> {
+        Runnable r = () -> {
             finishExistingAnimation();
             mAnimationResult = new AnimationResult(runnable);
             onCreateAnimation(targetCompats, mAnimationResult);
-        });
+        };
+        if (mStartAtFrontOfQueue) {
+            postAtFrontOfQueueAsynchronously(mHandler, r);
+        } else {
+            postAsyncCallback(mHandler, r);
+        }
     }
 
     /**
diff --git a/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java b/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
index 353ed84..ab350e4 100644
--- a/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
+++ b/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
@@ -162,7 +162,8 @@
     @Override
     public ActivityOptions getActivityLaunchOptions(Launcher launcher, View v) {
         if (hasControlRemoteAppTransitionPermission()) {
-            RemoteAnimationRunnerCompat runner = new LauncherAnimationRunner(mHandler) {
+            RemoteAnimationRunnerCompat runner = new LauncherAnimationRunner(mHandler,
+                    true /* startAtFrontOfQueue */) {
 
                 @Override
                 public void onCreateAnimation(RemoteAnimationTargetCompat[] targetCompats,
@@ -572,7 +573,7 @@
      *         ie. pressing home, swiping up from nav bar.
      */
     private RemoteAnimationRunnerCompat getWallpaperOpenRunner() {
-        return new LauncherAnimationRunner(mHandler) {
+        return new LauncherAnimationRunner(mHandler, false /* startAtFrontOfQueue */) {
             @Override
             public void onCreateAnimation(RemoteAnimationTargetCompat[] targetCompats,
                     AnimationResult result) {
diff --git a/quickstep/src/com/android/launcher3/uioverrides/AllAppsState.java b/quickstep/src/com/android/launcher3/uioverrides/AllAppsState.java
index d2f5487..7da50c8 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/AllAppsState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/AllAppsState.java
@@ -16,7 +16,7 @@
 package com.android.launcher3.uioverrides;
 
 import static com.android.launcher3.LauncherAnimUtils.ALL_APPS_TRANSITION_MS;
-import static com.android.launcher3.allapps.DiscoveryBounce.APPS_VIEW_SHOWN;
+import static com.android.launcher3.allapps.DiscoveryBounce.SHELF_BOUNCE_SEEN;
 import static com.android.launcher3.anim.Interpolators.DEACCEL_2;
 
 import android.view.View;
@@ -47,8 +47,8 @@
 
     @Override
     public void onStateEnabled(Launcher launcher) {
-        if (!launcher.getSharedPrefs().getBoolean(APPS_VIEW_SHOWN, false)) {
-            launcher.getSharedPrefs().edit().putBoolean(APPS_VIEW_SHOWN, true).apply();
+        if (!launcher.getSharedPrefs().getBoolean(SHELF_BOUNCE_SEEN, false)) {
+            launcher.getSharedPrefs().edit().putBoolean(SHELF_BOUNCE_SEEN, true).apply();
         }
 
         AbstractFloatingView.closeAllOpenViews(launcher);
diff --git a/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java b/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java
index 026f059..61422e0 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java
@@ -16,6 +16,7 @@
 package com.android.launcher3.uioverrides;
 
 import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
+import static com.android.launcher3.allapps.DiscoveryBounce.HOME_BOUNCE_SEEN;
 import static com.android.launcher3.anim.Interpolators.DEACCEL_2;
 import static com.android.launcher3.states.RotationHelper.REQUEST_ROTATE;
 
@@ -25,6 +26,7 @@
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
+import com.android.launcher3.allapps.DiscoveryBounce;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.quickstep.views.RecentsView;
 
@@ -57,6 +59,10 @@
 
     @Override
     public void onStateEnabled(Launcher launcher) {
+        if (!launcher.getSharedPrefs().getBoolean(HOME_BOUNCE_SEEN, false)) {
+            launcher.getSharedPrefs().edit().putBoolean(HOME_BOUNCE_SEEN, true).apply();
+        }
+
         RecentsView rv = launcher.getOverviewPanel();
         rv.setOverviewStateEnabled(true);
         AbstractFloatingView.closeAllOpenViews(launcher);
@@ -71,6 +77,7 @@
     @Override
     public void onStateTransitionEnd(Launcher launcher) {
         launcher.getRotationHelper().setCurrentStateRequest(REQUEST_ROTATE);
+        DiscoveryBounce.showForOverviewIfNeeded(launcher);
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/ActivityControlHelper.java b/quickstep/src/com/android/quickstep/ActivityControlHelper.java
index d3b0576..ad11bd3 100644
--- a/quickstep/src/com/android/quickstep/ActivityControlHelper.java
+++ b/quickstep/src/com/android/quickstep/ActivityControlHelper.java
@@ -38,11 +38,13 @@
 import com.android.launcher3.LauncherInitListener;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.allapps.AllAppsTransitionController;
+import com.android.launcher3.allapps.DiscoveryBounce;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.util.RemoteAnimationProvider;
 import com.android.quickstep.util.RemoteAnimationTargetSet;
 import com.android.quickstep.views.LauncherLayoutListener;
+import com.android.quickstep.views.LauncherRecentsView;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.RecentsViewContainer;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
@@ -65,6 +67,8 @@
      */
     boolean onQuickInteractionStart(T activity, boolean activityVisible);
 
+    float getTranslationYForQuickScrub(T activity);
+
     void executeOnWindowAvailable(T activity, Runnable action);
 
     void onTransitionCancelled(T activity, boolean activityVisible);
@@ -118,6 +122,13 @@
         }
 
         @Override
+        public float getTranslationYForQuickScrub(Launcher activity) {
+            LauncherRecentsView recentsView = activity.getOverviewPanel();
+            float transYFactor = FAST_OVERVIEW.getOverviewScaleAndTranslationYFactor(activity)[1];
+            return recentsView.computeTranslationYForFactor(transYFactor);
+        }
+
+        @Override
         public void executeOnWindowAvailable(Launcher activity, Runnable action) {
             if (activity.getWorkspace().runOnOverlayHidden(action)) {
                 // Notify the activity that qiuckscrub has started
@@ -147,6 +158,7 @@
         public void onSwipeUpComplete(Launcher activity) {
             // Re apply state in case we did something funky during the transition.
             activity.getStateManager().reapplyState();
+            DiscoveryBounce.showForOverviewIfNeeded(activity);
         }
 
         @Override
@@ -276,6 +288,11 @@
         }
 
         @Override
+        public float getTranslationYForQuickScrub(RecentsActivity activity) {
+            return 0;
+        }
+
+        @Override
         public void executeOnWindowAvailable(RecentsActivity activity, Runnable action) {
             action.run();
         }
diff --git a/quickstep/src/com/android/quickstep/RecentsActivity.java b/quickstep/src/com/android/quickstep/RecentsActivity.java
index 0185ab9..31bead1 100644
--- a/quickstep/src/com/android/quickstep/RecentsActivity.java
+++ b/quickstep/src/com/android/quickstep/RecentsActivity.java
@@ -172,7 +172,8 @@
         }
 
         final TaskView taskView = (TaskView) v;
-        RemoteAnimationRunnerCompat runner = new LauncherAnimationRunner(mUiHandler) {
+        RemoteAnimationRunnerCompat runner = new LauncherAnimationRunner(mUiHandler,
+                true /* startAtFrontOfQueue */) {
 
             @Override
             public void onCreateAnimation(RemoteAnimationTargetCompat[] targetCompats,
@@ -226,6 +227,14 @@
     }
 
     @Override
+    protected void onStop() {
+        super.onStop();
+
+        // Workaround for b/78520668, explicitly trim memory once UI is hidden
+        UiFactory.onTrimMemory(this, TRIM_MEMORY_UI_HIDDEN);
+    }
+
+    @Override
     public void onTrimMemory(int level) {
         super.onTrimMemory(level);
         UiFactory.onTrimMemory(this, level);
diff --git a/quickstep/src/com/android/quickstep/RecentsAnimationWrapper.java b/quickstep/src/com/android/quickstep/RecentsAnimationWrapper.java
index ebe2311..4ba9e02 100644
--- a/quickstep/src/com/android/quickstep/RecentsAnimationWrapper.java
+++ b/quickstep/src/com/android/quickstep/RecentsAnimationWrapper.java
@@ -115,4 +115,15 @@
             }
         });
     }
+
+    public void hideCurrentInputMethod() {
+        BackgroundExecutor.get().submit(() -> {
+            synchronized (this) {
+                TraceHelper.partitionSection("RecentsController", "Hiding currentinput method");
+                if (controller != null) {
+                    controller.hideCurrentInputMethod();
+                }
+            }
+        });
+    }
 }
diff --git a/quickstep/src/com/android/quickstep/TaskSystemShortcut.java b/quickstep/src/com/android/quickstep/TaskSystemShortcut.java
index e3f6543..a82c679 100644
--- a/quickstep/src/com/android/quickstep/TaskSystemShortcut.java
+++ b/quickstep/src/com/android/quickstep/TaskSystemShortcut.java
@@ -150,15 +150,6 @@
                             }
                         };
 
-                final OnPreDrawListener preDrawListener = new OnPreDrawListener() {
-                    @Override
-                    public boolean onPreDraw() {
-                        taskView.getViewTreeObserver().removeOnPreDrawListener(this);
-                        WindowManagerWrapper.getInstance().endProlongedAnimations();
-                        return true;
-                    }
-                };
-
                 AbstractFloatingView.closeOpenViews(activity, true,
                         AbstractFloatingView.TYPE_ALL & ~AbstractFloatingView.TYPE_REBIND_SAFE);
 
@@ -182,7 +173,6 @@
                         //       afterwards
                         recentsView.addIgnoreResetTask(taskView);
                         taskView.setAlpha(0f);
-                        taskView.getViewTreeObserver().addOnPreDrawListener(preDrawListener);
                     };
 
                     final int[] position = new int[2];
diff --git a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
index 25539aa..b8be6b8 100644
--- a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
@@ -451,41 +451,24 @@
             }
         }
 
-        if (mLauncherTransitionController != null) {
-            Runnable runOnUi = () -> {
-                if (mLauncherTransitionController == null) {
-                    return;
-                }
-                mLauncherTransitionController.setPlayFraction(shift);
-
-                // Make sure the window follows the first task if it moves, e.g. during quick scrub.
-                View firstTask = mRecentsView.getPageAt(0);
-                // The first task may be null if we are swiping up from a task that does not
-                // appear in the list (ie. the assistant)
-                if (firstTask != null) {
-                    int scrollForFirstTask = mRecentsView.getScrollForPage(0);
-                    int offsetFromFirstTask = (scrollForFirstTask - mRecentsView.getScrollX());
-                    mClipAnimationHelper.offsetTarget(firstTask.getScaleX(),
-                            offsetFromFirstTask + firstTask.getTranslationX(),
-                            mRecentsView.getTranslationY());
-                }
-                if (mRecentsAnimationWrapper.controller != null) {
-                    // TODO: This logic is spartanic!
-                    boolean passedThreshold = shift > 0.12f;
-                    mRecentsAnimationWrapper.setAnimationTargetsBehindSystemBars(!passedThreshold);
-                    if (mActivityControlHelper.shouldMinimizeSplitScreen()) {
-                        mRecentsAnimationWrapper
-                                .setSplitScreenMinimizedForTransaction(passedThreshold);
-                    }
-                }
-            };
-            if (Looper.getMainLooper() == Looper.myLooper()) {
-                runOnUi.run();
-            } else {
-                // The fling operation completed even before the launcher was drawn
-                mMainExecutor.execute(runOnUi);
+        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);
+    }
+
+    private void updateFinalShiftUi() {
+        if (mLauncherTransitionController == null) {
+            return;
+        }
+        mLauncherTransitionController.setPlayFraction(mCurrentShift.value);
     }
 
     public void onRecentsAnimationStart(RecentsAnimationControllerCompat controller,
@@ -532,6 +515,7 @@
         notifyGestureStartedAsync();
         setStateOnUiThread(STATE_GESTURE_STARTED);
         mGestureStarted = true;
+        mRecentsAnimationWrapper.hideCurrentInputMethod();
         mRecentsAnimationWrapper.enableInputConsumer();
         ActivityManagerWrapper.getInstance().closeSystemWindows(
                 CLOSE_SYSTEM_WINDOWS_REASON_RECENTS);
@@ -694,8 +678,6 @@
             // If we haven't posted the transition end runnable, run it now
             finishTransitionRunnable.run();
         }
-        RecentsModel.getInstance(mContext).onOverviewShown(false, TAG);
-        doLogGesture(true /* toLauncher */);
     }
 
     private void setupLauncherUiAfterSwipeUpAnimation() {
@@ -707,18 +689,40 @@
 
         // Animate the first icon.
         mRecentsView.setFirstTaskIconScaledDown(false /* isScaledDown */, true /* animate */);
-
         mRecentsView.setSwipeDownShouldLaunchApp(true);
 
+        RecentsModel.getInstance(mContext).onOverviewShown(false, TAG);
+
+        doLogGesture(true /* toLauncher */);
         reset();
     }
 
     private void onQuickScrubStart() {
-        mActivityControlHelper.onQuickInteractionStart(mActivity, mWasLauncherAlreadyVisible);
+        if (mLauncherTransitionController != null) {
+            mLauncherTransitionController.getAnimationPlayer().end();
+            mLauncherTransitionController = null;
+        }
+
+        mActivityControlHelper.onQuickInteractionStart(mActivity, false);
         mQuickScrubController.onQuickScrubStart(false);
 
         // Inform the last progress in case we skipped before.
         mQuickScrubController.onQuickScrubProgress(mCurrentQuickScrubProgress);
+
+        // Make sure the window follows the first task if it moves, e.g. during quick scrub.
+        TaskView firstTask = mRecentsView.getPageAt(0);
+        // The first task may be null if we are swiping up from a task that does not
+        // appear in the list (i.e. the assistant)
+        if (firstTask != null) {
+            int scrollForFirstTask = mRecentsView.getScrollForPage(0);
+            int scrollForSecondTask = mRecentsView.getChildCount() > 1
+                    ? mRecentsView.getScrollForPage(1) : scrollForFirstTask;
+            int offsetFromFirstTask = scrollForFirstTask - scrollForSecondTask;
+            float interpolation = offsetFromFirstTask / (mRecentsView.getWidth() / 2);
+            mClipAnimationHelper.offsetTarget(
+                    firstTask.getCurveScaleForInterpolation(interpolation), offsetFromFirstTask,
+                    mActivityControlHelper.getTranslationYForQuickScrub(mActivity));
+        }
     }
 
     private void onFinishedTransitionToQuickScrub() {
diff --git a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsView.java b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsView.java
index a4d3a50..fb4aa02 100644
--- a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsView.java
+++ b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsView.java
@@ -35,7 +35,6 @@
     public FallbackRecentsView(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
         setOverviewStateEnabled(true);
-        updateEmptyMessage();
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java b/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
index fb7a850..057e0c4 100644
--- a/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
+++ b/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
@@ -15,9 +15,13 @@
  */
 package com.android.quickstep.util;
 
+import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.anim.Interpolators.SCROLL;
+
 import android.graphics.Canvas;
 import android.graphics.Matrix;
 import android.graphics.Matrix.ScaleToFit;
+import android.graphics.PointF;
 import android.graphics.Rect;
 import android.graphics.RectF;
 
@@ -46,8 +50,8 @@
     private final RectF mSourceRect = new RectF();
     // The bounds of the task view in launcher window coordinates
     private final RectF mTargetRect = new RectF();
-    // Doesn't change after initialized, used as an anchor when changing mTargetRect
-    private final RectF mInitialTargetRect = new RectF();
+    // Set when the final window destination is changed, such as offsetting for quick scrub
+    private final PointF mTargetOffset = new PointF();
     // The insets to be used for clipping the app window, which can be larger than mSourceInsets
     // if the aspect ratio of the target is smaller than the aspect ratio of the source rect. In
     // app window coordinates.
@@ -60,6 +64,9 @@
     private final Rect mClipRect = new Rect();
     private final RectFEvaluator mRectFEvaluator = new RectFEvaluator();
     private final Matrix mTmpMatrix = new Matrix();
+    private final RectF mTmpRectF = new RectF();
+
+    private float mTargetScale = 1f;
 
     public void updateSource(Rect homeStackBounds, RemoteAnimationTargetCompat target) {
         mHomeStackBounds.set(homeStackBounds);
@@ -78,8 +85,6 @@
         mTargetRect.offset(mHomeStackBounds.left - mSourceStackBounds.left,
                 mHomeStackBounds.top - mSourceStackBounds.top);
 
-        mInitialTargetRect.set(mTargetRect);
-
         // Calculate the clip based on the target rect (since the content insets and the
         // launcher insets may differ, so the aspect ratio of the target rect can differ
         // from the source rect. The difference between the target rect (scaled to the
@@ -98,10 +103,14 @@
 
     public void applyTransform(RemoteAnimationTargetSet targetSet, float progress) {
         RectF currentRect;
-        synchronized (mTargetRect) {
-            currentRect =  mRectFEvaluator.evaluate(progress, mSourceRect, mTargetRect);
+        mTmpRectF.set(mTargetRect);
+        Utilities.scaleRectFAboutCenter(mTmpRectF, mTargetScale);
+        currentRect =  mRectFEvaluator.evaluate(progress, mSourceRect, mTmpRectF);
+
+        synchronized (mTargetOffset) {
             // Stay lined up with the center of the target, since it moves for quick scrub.
-            currentRect.offset(mTargetRect.centerX() - currentRect.centerX(), 0);
+            currentRect.offset(mTargetOffset.x * SCROLL.getInterpolation(progress),
+                    mTargetOffset.y  * LINEAR.getInterpolation(progress));
         }
 
         mClipRect.left = (int) (mSourceWindowClipInsets.left * progress);
@@ -131,10 +140,9 @@
     }
 
     public void offsetTarget(float scale, float offsetX, float offsetY) {
-        synchronized (mTargetRect) {
-            mTargetRect.set(mInitialTargetRect);
-            Utilities.scaleRectFAboutCenter(mTargetRect, scale);
-            mTargetRect.offset(offsetX, offsetY);
+        synchronized (mTargetOffset) {
+            mTargetScale = scale;
+            mTargetOffset.set(offsetX, offsetY);
         }
     }
 
@@ -187,14 +195,11 @@
     }
 
     public void drawForProgress(TaskThumbnailView ttv, Canvas canvas, float progress) {
-        RectF currentRect;
-        synchronized (mTargetRect) {
-            currentRect =  mRectFEvaluator.evaluate(progress, mSourceRect, mTargetRect);
-        }
-
+        RectF currentRect =  mRectFEvaluator.evaluate(progress, mSourceRect, mTargetRect);
         canvas.translate(mSourceStackBounds.left - mHomeStackBounds.left,
                 mSourceStackBounds.top - mHomeStackBounds.top);
         mTmpMatrix.setRectToRect(mTargetRect, currentRect, ScaleToFit.FILL);
+
         canvas.concat(mTmpMatrix);
         canvas.translate(mTargetRect.left, mTargetRect.top);
 
diff --git a/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java b/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
index 7ee16c1..dfe1984 100644
--- a/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
+++ b/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
@@ -31,7 +31,8 @@
     AnimatorSet createWindowAnimation(RemoteAnimationTargetCompat[] targets);
 
     default ActivityOptions toActivityOptions(Handler handler, long duration) {
-        LauncherAnimationRunner runner = new LauncherAnimationRunner(handler) {
+        LauncherAnimationRunner runner = new LauncherAnimationRunner(handler,
+                false /* startAtFrontOfQueue */) {
 
             @Override
             public void onCreateAnimation(RemoteAnimationTargetCompat[] targetCompats,
diff --git a/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java b/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
index 06e5311..d69beb6 100644
--- a/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
@@ -86,7 +86,11 @@
 
     public void setTranslationYFactor(float translationFactor) {
         mTranslationYFactor = translationFactor;
-        setTranslationY(mTranslationYFactor * (getPaddingBottom() - getPaddingTop()));
+        setTranslationY(computeTranslationYForFactor(mTranslationYFactor));
+    }
+
+    public float computeTranslationYForFactor(float translationYFactor) {
+        return translationYFactor * (getPaddingBottom() - getPaddingTop());
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index a2a93d7..9ab1e04 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -214,6 +214,7 @@
         mEmptyMessagePadding = getResources()
                 .getDimensionPixelSize(R.dimen.recents_empty_message_text_padding);
         setWillNotDraw(false);
+        updateEmptyMessage();
     }
 
     public boolean isRtl() {
@@ -298,6 +299,56 @@
         }
     }
 
+    private float calculateClearAllButtonAlpha() {
+        if (mClearAllButton.getVisibility() != View.VISIBLE || getChildCount() == 0) return 0;
+
+        // Current visible coordinate of the right border of the rightmost task.
+        final int carouselCurrentRight = getChildAt(getChildCount() - 1).getRight() - getScrollX();
+
+        // As the right border (let's call it E aka carouselCurrentRight) of the carousel moves
+        // over Clear all button, the button changes trasparency.
+        // leftOfAlphaChange < rightOfAlphaChange; these are the points of the 100% and 0% alpha
+        // correspondingly. Alpha changes linearly between 100% and 0% as E moves through this
+        // range. It doesn't change outside of the range.
+
+        // Once E hits the left border of the Clear-All button, the whole button is uncovered,
+        // and it should have alpha 100%.
+        final float leftOfAlphaChange = mClearAllButton.getX();
+
+        // The rightmost possible right coordinate of the carousel.
+        final int carouselMotionLimit = getScrollForPage(getChildCount() - 1) + getWidth()
+                - getPaddingRight() - mInsets.right;
+
+        // The carousel might not be able to ever cover a part of the Clear-all button. Then
+        // always show the button as 100%. Technically, this check also prevents dividing by zero
+        // or a negative number when calculating the transparency ratio below.
+        if (carouselMotionLimit <= leftOfAlphaChange) return 1;
+
+        // If the carousel is able to cover the button completely, we make the button completely
+        // transparent when E hits the right border of the button.
+        // Or, the carousel may not be able to move that far to the right so it completely covers
+        // the button. Then we set the rightmost possible position of the carousel as the point
+        // where the button reaches 0 alpha.
+        final float rightOfAlphaChange = Math.min(
+                mClearAllButton.getX() + mClearAllButton.getWidth(), carouselMotionLimit);
+
+        return Utilities.boundToRange(
+                (rightOfAlphaChange - carouselCurrentRight) /
+                        (rightOfAlphaChange - leftOfAlphaChange), 0, 1);
+    }
+
+    private void updateClearAllButtonAlpha() {
+        if (mClearAllButton != null) {
+            mClearAllButton.setAlpha(calculateClearAllButtonAlpha() * mContentAlpha);
+        }
+    }
+
+    @Override
+    protected void onScrollChanged(int l, int t, int oldl, int oldt) {
+        super.onScrollChanged(l, t, oldl, oldt);
+        updateClearAllButtonAlpha();
+    }
+
     @Override
     public boolean onTouchEvent(MotionEvent ev) {
         if (DEBUG_SHOW_CLEAR_ALL_BUTTON && ev.getAction() == MotionEvent.ACTION_DOWN
@@ -662,8 +713,23 @@
         mIgnoreResetTaskViews.remove(taskView);
     }
 
+    private void addDismissedTaskAnimations(View taskView, AnimatorSet anim, long duration) {
+        addAnim(ObjectAnimator.ofFloat(taskView, ALPHA, 0), duration, ACCEL_2, anim);
+        addAnim(ObjectAnimator.ofFloat(taskView, TRANSLATION_Y, -taskView.getHeight()),
+                duration, LINEAR, anim);
+    }
+
+    private void removeTask(Task task, PendingAnimation.OnEndListener onEndListener) {
+        if (task != null) {
+            ActivityManagerWrapper.getInstance().removeTask(task.key.id);
+            mActivity.getUserEventDispatcher().logTaskLaunchOrDismiss(
+                    onEndListener.logAction, Direction.UP,
+                    TaskUtils.getComponentKeyForTask(task.key));
+        }
+    }
+
     public PendingAnimation createTaskDismissAnimation(TaskView taskView, boolean animateTaskView,
-            boolean removeTask, long duration) {
+            boolean shouldRemoveTask, long duration) {
         if (FeatureFlags.IS_DOGFOOD_BUILD && mPendingAnimation != null) {
             throw new IllegalStateException("Another pending animation is still running");
         }
@@ -695,9 +761,7 @@
             View child = getChildAt(i);
             if (child == taskView) {
                 if (animateTaskView) {
-                    addAnim(ObjectAnimator.ofFloat(taskView, ALPHA, 0), duration, ACCEL_2, anim);
-                    addAnim(ObjectAnimator.ofFloat(taskView, TRANSLATION_Y, -taskView.getHeight()),
-                            duration, LINEAR, anim);
+                    addDismissedTaskAnimations(taskView, anim, duration);
                 }
             } else {
                 // If we just take newScroll - oldScroll, everything to the right of dragged task
@@ -742,14 +806,8 @@
         mPendingAnimation = pendingAnimation;
         mPendingAnimation.addEndListener((onEndListener) -> {
            if (onEndListener.isSuccess) {
-               if (removeTask) {
-                   Task task = taskView.getTask();
-                   if (task != null) {
-                       ActivityManagerWrapper.getInstance().removeTask(task.key.id);
-                       mActivity.getUserEventDispatcher().logTaskLaunchOrDismiss(
-                               onEndListener.logAction, Direction.UP,
-                               TaskUtils.getComponentKeyForTask(task.key));
-                   }
+               if (shouldRemoveTask) {
+                   removeTask(taskView.getTask(), onEndListener);
                }
                int pageToSnapTo = mCurrentPage;
                if (draggedIndex < pageToSnapTo) {
@@ -768,6 +826,33 @@
         return pendingAnimation;
     }
 
+    public PendingAnimation createAllTasksDismissAnimation(long duration) {
+        if (FeatureFlags.IS_DOGFOOD_BUILD && mPendingAnimation != null) {
+            throw new IllegalStateException("Another pending animation is still running");
+        }
+        AnimatorSet anim = new AnimatorSet();
+        PendingAnimation pendingAnimation = new PendingAnimation(anim);
+
+        int count = getChildCount();
+        for (int i = 0; i < count; i++) {
+            addDismissedTaskAnimations(getChildAt(i), anim, duration);
+        }
+
+        mPendingAnimation = pendingAnimation;
+        mPendingAnimation.addEndListener((onEndListener) -> {
+            if (onEndListener.isSuccess) {
+                while (getChildCount() != 0) {
+                    TaskView taskView = getPageAt(getChildCount() - 1);
+                    removeTask(taskView.getTask(), onEndListener);
+                    removeView(taskView);
+                }
+                onAllTasksRemoved();
+            }
+            mPendingAnimation = null;
+        });
+        return pendingAnimation;
+    }
+
     private static void addAnim(ObjectAnimator anim, long duration,
             TimeInterpolator interpolator, AnimatorSet set) {
         anim.setDuration(duration).setInterpolator(interpolator);
@@ -791,9 +876,7 @@
         }
     }
 
-    public void dismissTask(TaskView taskView, boolean animateTaskView, boolean removeTask) {
-        PendingAnimation pendingAnim = createTaskDismissAnimation(taskView, animateTaskView,
-                removeTask, DISMISS_TASK_DURATION);
+    private void runDismissAnimation(PendingAnimation pendingAnim) {
         AnimatorPlaybackController controller = AnimatorPlaybackController.wrap(
                 pendingAnim.anim, DISMISS_TASK_DURATION);
         controller.dispatchOnStart();
@@ -802,6 +885,15 @@
         controller.start();
     }
 
+    public void dismissTask(TaskView taskView, boolean animateTaskView, boolean removeTask) {
+        runDismissAnimation(createTaskDismissAnimation(taskView, animateTaskView, removeTask,
+                DISMISS_TASK_DURATION));
+    }
+
+    public void dismissAllTasks() {
+        runDismissAnimation(createAllTasksDismissAnimation(DISMISS_TASK_DURATION));
+    }
+
     @Override
     public boolean dispatchKeyEvent(KeyEvent event) {
         if (event.getAction() == KeyEvent.ACTION_DOWN) {
@@ -852,6 +944,7 @@
         int alphaInt = Math.round(alpha * 255);
         mEmptyMessagePaint.setAlpha(alphaInt);
         mEmptyIcon.setAlpha(alphaInt);
+        updateClearAllButtonAlpha();
     }
 
     public void setAdjacentScale(float adjacentScale) {
@@ -936,6 +1029,7 @@
             mEmptyTextLayout = null;
             mLastMeasureSize.set(getWidth(), getHeight());
         }
+        updateClearAllButtonVisibility();
 
         if (!mShowEmptyMessage) return;
 
@@ -1106,16 +1200,6 @@
         return "";
     }
 
-    public void dismissAllTasks() {
-        for (int i = 0; i < getChildCount(); ++i) {
-            Task task = getPageAt(i).getTask();
-            if (task != null) {
-                ActivityManagerWrapper.getInstance().removeTask(task.key.id);
-            }
-        }
-        onAllTasksRemoved();
-    }
-
     @Override
     protected int computeMaxScrollX() {
         if (!DEBUG_SHOW_CLEAR_ALL_BUTTON || getChildCount() == 0) {
@@ -1128,8 +1212,10 @@
     }
 
     private void updateClearAllButtonVisibility() {
+        if (mClearAllButton == null) return;
         mClearAllButton.setVisibility(
                 !DEBUG_SHOW_CLEAR_ALL_BUTTON || mShowEmptyMessage ? GONE : VISIBLE);
+        updateClearAllButtonAlpha();
     }
 
     public void setClearAllButton(View clearAllButton) {
diff --git a/quickstep/src/com/android/quickstep/views/TaskView.java b/quickstep/src/com/android/quickstep/views/TaskView.java
index b32d8dd..8c1076a 100644
--- a/quickstep/src/com/android/quickstep/views/TaskView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskView.java
@@ -219,11 +219,20 @@
             mSnapshotView.setDimAlpha(mCurveDimAlpha);
         }
 
-        mCurveScale = 1 - curveInterpolation * EDGE_SCALE_DOWN_FACTOR;
+        mCurveScale = getCurveScaleForCurveInterpolation(curveInterpolation);
         setScaleX(mCurveScale);
         setScaleY(mCurveScale);
     }
 
+    public float getCurveScaleForInterpolation(float linearInterpolation) {
+        float curveInterpolation = CURVE_INTERPOLATOR.getInterpolation(linearInterpolation);
+        return getCurveScaleForCurveInterpolation(curveInterpolation);
+    }
+
+    private float getCurveScaleForCurveInterpolation(float curveInterpolation) {
+        return 1 - curveInterpolation * EDGE_SCALE_DOWN_FACTOR;
+    }
+
     public float getCurveScale() {
         return mCurveScale;
     }
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 5e06d92..1285a2b 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -737,6 +737,8 @@
         NotificationListener.removeNotificationsChangedListener();
         getStateManager().moveToRestState();
 
+        // Workaround for b/78520668, explicitly trim memory once UI is hidden
+        UiFactory.onTrimMemory(this, TRIM_MEMORY_UI_HIDDEN);
     }
 
     @Override
@@ -787,7 +789,7 @@
         // Refresh shortcuts if the permission changed.
         mModel.refreshShortcutsIfRequired();
 
-        DiscoveryBounce.showIfNeeded(this);
+        DiscoveryBounce.showForHomeIfNeeded(this);
         if (mLauncherCallbacks != null) {
             mLauncherCallbacks.onResume();
         }
@@ -1278,7 +1280,7 @@
             }
 
             if (mLauncherCallbacks != null) {
-                mLauncherCallbacks.onHomeIntent();
+                mLauncherCallbacks.onHomeIntent(internalStateHandled);
             }
         }
 
diff --git a/src/com/android/launcher3/LauncherCallbacks.java b/src/com/android/launcher3/LauncherCallbacks.java
index 35faaea..6aef658 100644
--- a/src/com/android/launcher3/LauncherCallbacks.java
+++ b/src/com/android/launcher3/LauncherCallbacks.java
@@ -50,7 +50,7 @@
     void onAttachedToWindow();
     void onDetachedFromWindow();
     void dump(String prefix, FileDescriptor fd, PrintWriter w, String[] args);
-    void onHomeIntent();
+    void onHomeIntent(boolean internalStateHandled);
     boolean handleBackPressed();
     void onTrimMemory(int level);
 
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 7ecafdb..d2a126f 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -477,7 +477,7 @@
         super.onViewAdded(child);
     }
 
-    boolean isTouchActive() {
+    public boolean isTouchActive() {
         return mTouchState != TOUCH_STATE_REST;
     }
 
@@ -974,19 +974,9 @@
 
     @Override
     public boolean onInterceptTouchEvent(MotionEvent ev) {
-        switch (ev.getAction() & MotionEvent.ACTION_MASK) {
-        case MotionEvent.ACTION_DOWN:
+        if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
             mXDown = ev.getX();
             mYDown = ev.getY();
-            break;
-        case MotionEvent.ACTION_POINTER_UP:
-        case MotionEvent.ACTION_UP:
-            if (mTouchState == TOUCH_STATE_REST) {
-                final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage);
-                if (currentPage != null) {
-                    onWallpaperTap(ev);
-                }
-            }
         }
         return super.onInterceptTouchEvent(ev);
     }
@@ -1443,7 +1433,7 @@
         }
     }
 
-    protected void onWallpaperTap(MotionEvent ev) {
+    public void onWallpaperTap(MotionEvent ev) {
         final int[] position = mTempXY;
         getLocationOnScreen(position);
 
diff --git a/src/com/android/launcher3/allapps/DiscoveryBounce.java b/src/com/android/launcher3/allapps/DiscoveryBounce.java
index fddafb2..f73916c 100644
--- a/src/com/android/launcher3/allapps/DiscoveryBounce.java
+++ b/src/com/android/launcher3/allapps/DiscoveryBounce.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 The Android Open Source Project
+ * 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.
@@ -17,35 +17,44 @@
 package com.android.launcher3.allapps;
 
 import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.LauncherState.OVERVIEW;
 
 import android.animation.Animator;
 import android.animation.AnimatorInflater;
 import android.animation.AnimatorListenerAdapter;
+import android.animation.Keyframe;
+import android.animation.ObjectAnimator;
+import android.animation.PropertyValuesHolder;
+import android.animation.TimeInterpolator;
 import android.app.ActivityManager;
-import android.content.Context;
+import android.os.Handler;
 import android.view.MotionEvent;
+import android.view.animation.PathInterpolator;
 
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
 import com.android.launcher3.compat.UserManagerCompat;
+import com.android.launcher3.states.InternalStateHandler;
 
 /**
- * Floating view responsible for showing discovery bounce animation
+ * Abstract base class of floating view responsible for showing discovery bounce animation
  */
 public class DiscoveryBounce extends AbstractFloatingView {
 
-    public static final String APPS_VIEW_SHOWN = "launcher.apps_view_shown";
+    private static final long DELAY_MS = 200;
+
+    public static final String HOME_BOUNCE_SEEN = "launcher.apps_view_shown";
+    public static final String SHELF_BOUNCE_SEEN = "launcher.shelf_bounce_seen";
 
     private final Launcher mLauncher;
     private final Animator mDiscoBounceAnimation;
 
-    public DiscoveryBounce(Launcher launcher) {
+    public DiscoveryBounce(Launcher launcher, Animator animator) {
         super(launcher, null);
         mLauncher = launcher;
 
-        mDiscoBounceAnimation = AnimatorInflater.loadAnimator(mLauncher,
-                R.animator.discovery_bounce);
+        mDiscoBounceAnimation = animator;
         AllAppsTransitionController controller = mLauncher.getAllAppsController();
         mDiscoBounceAnimation.setTarget(controller);
         mDiscoBounceAnimation.addListener(controller.getProgressAnimatorListener());
@@ -96,16 +105,72 @@
         return (type & TYPE_ON_BOARD_POPUP) != 0;
     }
 
-    public static void showIfNeeded(Launcher launcher) {
+    public static void showForHomeIfNeeded(Launcher launcher) {
+        showForHomeIfNeeded(launcher, true);
+    }
+
+    private static void showForHomeIfNeeded(Launcher launcher, boolean withDelay) {
         if (!launcher.isInState(NORMAL)
-                || launcher.getSharedPrefs().getBoolean(APPS_VIEW_SHOWN, false)
+                || launcher.getSharedPrefs().getBoolean(HOME_BOUNCE_SEEN, false)
                 || AbstractFloatingView.getTopOpenView(launcher) != null
                 || UserManagerCompat.getInstance(launcher).isDemoUser()
                 || ActivityManager.isRunningInTestHarness()) {
             return;
         }
 
-        DiscoveryBounce view = new DiscoveryBounce(launcher);
+        if (withDelay) {
+            new Handler().postDelayed(() -> showForHomeIfNeeded(launcher, false), DELAY_MS);
+            return;
+        }
+
+        DiscoveryBounce view = new DiscoveryBounce(launcher,
+                AnimatorInflater.loadAnimator(launcher, R.animator.discovery_bounce));
+        view.mIsOpen = true;
+        launcher.getDragLayer().addView(view);
+    }
+
+    public static void showForOverviewIfNeeded(Launcher launcher) {
+        showForOverviewIfNeeded(launcher, true);
+    }
+
+    private static void showForOverviewIfNeeded(Launcher launcher, boolean withDelay) {
+        if (!launcher.isInState(OVERVIEW)
+                || !launcher.hasBeenResumed()
+                || launcher.isForceInvisible()
+                || launcher.getDeviceProfile().isVerticalBarLayout()
+                || launcher.getSharedPrefs().getBoolean(SHELF_BOUNCE_SEEN, false)
+                || UserManagerCompat.getInstance(launcher).isDemoUser()
+                || ActivityManager.isRunningInTestHarness()) {
+            return;
+        }
+
+        if (withDelay) {
+            new Handler().postDelayed(() -> showForOverviewIfNeeded(launcher, false), DELAY_MS);
+            return;
+        } else if (InternalStateHandler.hasPending()
+                || AbstractFloatingView.getTopOpenView(launcher) != null) {
+            // TODO: Move these checks to the top and call this method after invalidate handler.
+            return;
+        }
+
+        float verticalProgress = OVERVIEW.getVerticalProgress(launcher);
+
+        TimeInterpolator pathInterpolator = new PathInterpolator(0.35f, 0, 0.5f, 1);
+        Keyframe keyframe3 = Keyframe.ofFloat(0.423f, verticalProgress - (1 - 0.9438f));
+        keyframe3.setInterpolator(pathInterpolator);
+        Keyframe keyframe4 = Keyframe.ofFloat(0.654f, verticalProgress);
+        keyframe4.setInterpolator(pathInterpolator);
+
+        PropertyValuesHolder propertyValuesHolder = PropertyValuesHolder.ofKeyframe("progress",
+                Keyframe.ofFloat(0, verticalProgress),
+                Keyframe.ofFloat(0.346f, verticalProgress), keyframe3, keyframe4,
+                Keyframe.ofFloat(1f, verticalProgress));
+        ObjectAnimator animator = ObjectAnimator.ofPropertyValuesHolder(null,
+                new PropertyValuesHolder[]{propertyValuesHolder});
+        animator.setDuration(2166);
+        animator.setRepeatCount(5);
+
+        DiscoveryBounce view = new DiscoveryBounce(launcher, animator);
         view.mIsOpen = true;
         launcher.getDragLayer().addView(view);
     }
diff --git a/src/com/android/launcher3/states/InternalStateHandler.java b/src/com/android/launcher3/states/InternalStateHandler.java
index 0a2c3e4..cf7c6ba 100644
--- a/src/com/android/launcher3/states/InternalStateHandler.java
+++ b/src/com/android/launcher3/states/InternalStateHandler.java
@@ -60,6 +60,10 @@
         return sScheduler.clearReference(this);
     }
 
+    public static boolean hasPending() {
+        return sScheduler.hasPending();
+    }
+
     public static boolean handleCreate(Launcher launcher, Intent intent) {
         return handleIntent(launcher, intent, false, false);
     }
@@ -132,5 +136,9 @@
             }
             return false;
         }
+
+        public boolean hasPending() {
+            return mPendingHandler.get() != null;
+        }
     }
 }
\ No newline at end of file
diff --git a/src/com/android/launcher3/touch/WorkspaceTouchListener.java b/src/com/android/launcher3/touch/WorkspaceTouchListener.java
index 23f55aa..f59f14e 100644
--- a/src/com/android/launcher3/touch/WorkspaceTouchListener.java
+++ b/src/com/android/launcher3/touch/WorkspaceTouchListener.java
@@ -17,6 +17,7 @@
 
 import static android.view.MotionEvent.ACTION_CANCEL;
 import static android.view.MotionEvent.ACTION_DOWN;
+import static android.view.MotionEvent.ACTION_POINTER_UP;
 import static android.view.MotionEvent.ACTION_UP;
 import static android.view.ViewConfiguration.getLongPressTimeout;
 
@@ -30,6 +31,7 @@
 import android.view.View.OnTouchListener;
 
 import com.android.launcher3.AbstractFloatingView;
+import com.android.launcher3.CellLayout;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.Workspace;
@@ -71,8 +73,7 @@
         int action = ev.getActionMasked();
         if (action == ACTION_DOWN) {
             // Check if we can handle long press.
-            boolean handleLongPress = AbstractFloatingView.getTopOpenView(mLauncher) == null
-                    && mLauncher.isInState(NORMAL);
+            boolean handleLongPress = canHandleLongPress();
 
             if (handleLongPress) {
                 // Check if the event is not near the edges
@@ -122,12 +123,28 @@
             // We don't want to handle touch, let workspace handle it as usual.
             result = false;
         }
+
+        if (action == ACTION_UP || action == ACTION_POINTER_UP) {
+            if (!mWorkspace.isTouchActive()) {
+                final CellLayout currentPage =
+                        (CellLayout) mWorkspace.getChildAt(mWorkspace.getCurrentPage());
+                if (currentPage != null) {
+                    mWorkspace.onWallpaperTap(ev);
+                }
+            }
+        }
+
         if (action == ACTION_UP || action == ACTION_CANCEL) {
             cancelLongPress();
         }
         return result;
     }
 
+    private boolean canHandleLongPress() {
+        return AbstractFloatingView.getTopOpenView(mLauncher) == null
+                && mLauncher.isInState(NORMAL);
+    }
+
     private void cancelLongPress() {
         mWorkspace.removeCallbacks(this);
         mLongPressState = STATE_CANCELLED;
@@ -136,15 +153,19 @@
     @Override
     public void run() {
         if (mLongPressState == STATE_REQUESTED) {
-            mLongPressState = STATE_PENDING_PARENT_INFORM;
-            mWorkspace.getParent().requestDisallowInterceptTouchEvent(true);
+            if (canHandleLongPress()) {
+                mLongPressState = STATE_PENDING_PARENT_INFORM;
+                mWorkspace.getParent().requestDisallowInterceptTouchEvent(true);
 
-            mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
-                    HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
-            mLauncher.getUserEventDispatcher().logActionOnContainer(Action.Touch.LONGPRESS,
-                    Action.Direction.NONE, ContainerType.WORKSPACE,
-                    mWorkspace.getCurrentPage());
-            OptionsPopupView.showDefaultOptions(mLauncher, mTouchDownPoint.x, mTouchDownPoint.y);
+                mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
+                        HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
+                mLauncher.getUserEventDispatcher().logActionOnContainer(Action.Touch.LONGPRESS,
+                        Action.Direction.NONE, ContainerType.WORKSPACE,
+                        mWorkspace.getCurrentPage());
+                OptionsPopupView.showDefaultOptions(mLauncher, mTouchDownPoint.x, mTouchDownPoint.y);
+            } else {
+                cancelLongPress();
+            }
         }
     }
 }
diff --git a/src/com/android/launcher3/views/SpringRelativeLayout.java b/src/com/android/launcher3/views/SpringRelativeLayout.java
index 090b3e6..a508191 100644
--- a/src/com/android/launcher3/views/SpringRelativeLayout.java
+++ b/src/com/android/launcher3/views/SpringRelativeLayout.java
@@ -24,7 +24,6 @@
 import android.support.v7.widget.RecyclerView;
 import android.support.v7.widget.RecyclerView.EdgeEffectFactory;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.util.SparseBooleanArray;
 import android.view.View;
 import android.widget.EdgeEffect;
@@ -58,6 +57,7 @@
     private final SpringAnimation mSpring;
 
     private float mDampedScrollShift = 0;
+    private SpringEdgeEffect mActiveEdge;
 
     public SpringRelativeLayout(Context context) {
         this(context, null);
@@ -90,6 +90,13 @@
         return super.drawChild(canvas, child, drawingTime);
     }
 
+    private void setActiveEdge(SpringEdgeEffect edge) {
+        if (mActiveEdge != edge && mActiveEdge != null) {
+            mActiveEdge.mDistance = 0;
+        }
+        mActiveEdge = edge;
+    }
+
     private void setDampedScrollShift(float shift) {
         if (shift != mDampedScrollShift) {
             mDampedScrollShift = shift;
@@ -144,6 +151,7 @@
 
         @Override
         public void onPull(float deltaDistance, float displacement) {
+            setActiveEdge(this);
             mDistance += deltaDistance * (mVelocityMultiplier / 3f);
             setDampedScrollShift(mDistance * getHeight());
         }
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/AllAppsState.java b/src_ui_overrides/com/android/launcher3/uioverrides/AllAppsState.java
index 49a9dc7..6366b2d 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/AllAppsState.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/AllAppsState.java
@@ -16,7 +16,7 @@
 package com.android.launcher3.uioverrides;
 
 import static com.android.launcher3.LauncherAnimUtils.ALL_APPS_TRANSITION_MS;
-import static com.android.launcher3.allapps.DiscoveryBounce.APPS_VIEW_SHOWN;
+import static com.android.launcher3.allapps.DiscoveryBounce.HOME_BOUNCE_SEEN;
 import static com.android.launcher3.anim.Interpolators.DEACCEL_2;
 
 import android.view.View;
@@ -49,8 +49,8 @@
 
     @Override
     public void onStateEnabled(Launcher launcher) {
-        if (!launcher.getSharedPrefs().getBoolean(APPS_VIEW_SHOWN, false)) {
-            launcher.getSharedPrefs().edit().putBoolean(APPS_VIEW_SHOWN, true).apply();
+        if (!launcher.getSharedPrefs().getBoolean(HOME_BOUNCE_SEEN, false)) {
+            launcher.getSharedPrefs().edit().putBoolean(HOME_BOUNCE_SEEN, true).apply();
         }
 
         AbstractFloatingView.closeAllOpenViews(launcher);
diff --git a/tests/AndroidManifest-common.xml b/tests/AndroidManifest-common.xml
index a54268a..af8b15c 100644
--- a/tests/AndroidManifest-common.xml
+++ b/tests/AndroidManifest-common.xml
@@ -18,8 +18,6 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.android.launcher3.tests">
 
-    <uses-sdk android:targetSdkVersion="25" android:minSdkVersion="21"/>
-
     <application android:debuggable="true">
         <uses-library android:name="android.test.runner" />