diff --git a/quickstep/res/values/dimens.xml b/quickstep/res/values/dimens.xml
index 9cc7973..bdc7c36 100644
--- a/quickstep/res/values/dimens.xml
+++ b/quickstep/res/values/dimens.xml
@@ -37,6 +37,4 @@
     <!-- Launcher app transition -->
     <dimen name="content_trans_y">25dp</dimen>
     <dimen name="workspace_trans_y">80dp</dimen>
-
-    <dimen name="shelf_min_value">-2.857dp</dimen>
 </resources>
diff --git a/quickstep/src/com/android/launcher3/LauncherAppTransitionManager.java b/quickstep/src/com/android/launcher3/LauncherAppTransitionManager.java
index 256e926..47179c5 100644
--- a/quickstep/src/com/android/launcher3/LauncherAppTransitionManager.java
+++ b/quickstep/src/com/android/launcher3/LauncherAppTransitionManager.java
@@ -16,7 +16,7 @@
 
 package com.android.launcher3;
 
-import static com.android.launcher3.views.AllAppsScrim.SCRIM_PROGRESS;
+import static com.android.launcher3.allapps.AllAppsTransitionController.ALL_APPS_PROGRESS;
 import static com.android.systemui.shared.recents.utilities.Utilities.getNextFrameNumber;
 import static com.android.systemui.shared.recents.utilities.Utilities.getSurface;
 import static com.android.systemui.shared.recents.utilities.Utilities.postAtFrontOfQueueAsynchronously;
@@ -40,9 +40,9 @@
 import android.widget.ImageView;
 
 import com.android.launcher3.InsettableFrameLayout.LayoutParams;
+import com.android.launcher3.allapps.AllAppsTransitionController;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.dragndrop.DragLayer;
-import com.android.launcher3.views.AllAppsScrim;
 import com.android.systemui.shared.system.ActivityCompat;
 import com.android.systemui.shared.system.ActivityOptionsCompat;
 import com.android.systemui.shared.system.RemoteAnimationAdapterCompat;
@@ -62,14 +62,16 @@
 
     private static final int CLOSING_TRANSITION_DURATION_MS = 350;
 
+    // Progress = 0: All apps is fully pulled up, Progress = 1: All apps is fully pulled down.
+    private static final float ALL_APPS_PROGRESS_START = 1.3059858f;
+    private static final float ALL_APPS_PROGRESS_SLIDE_END = 0.99581414f;
+
     private final DragLayer mDragLayer;
     private final Launcher mLauncher;
     private final DeviceProfile mDeviceProfile;
 
     private final float mContentTransY;
     private final float mWorkspaceTransY;
-    // The smallest y-value the shelf will reach on screen, before overshooting back down to 0.
-    private final float mShelfMinValue;
 
     private ImageView mFloatingView;
     private boolean mIsRtl;
@@ -84,7 +86,6 @@
         Resources res = launcher.getResources();
         mContentTransY = res.getDimensionPixelSize(R.dimen.content_trans_y);
         mWorkspaceTransY = res.getDimensionPixelSize(R.dimen.workspace_trans_y);
-        mShelfMinValue = res.getDimensionPixelSize(R.dimen.shelf_min_value);
     }
 
     /**
@@ -477,31 +478,29 @@
             workspaceAnimator.setDuration(333);
             workspaceAnimator.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
 
-            // Animate the shelf
-            AllAppsScrim allAppsScrim = mLauncher.findViewById(R.id.all_apps_scrim);
-            View hotseat = mLauncher.getHotseat();
-            final float endY = mShelfMinValue;
-            int startY = hotseat.getMeasuredHeight()
-                    + (allAppsScrim.getShadowBitmap().getHeight() / 2);
-            hotseat.setTranslationY(startY);
-            allAppsScrim.setTranslationY(startY);
+            // Animate the shelf in two parts: slide in, and overeshoot.
+            AllAppsTransitionController allAppsController = mLauncher.getAllAppsController();
+            // The shelf will start offscreen
+            final float startY = ALL_APPS_PROGRESS_START;
+            // And will end slightly pulled up, so that there is something to overshoot back to 1f.
+            final float slideEnd = ALL_APPS_PROGRESS_SLIDE_END;
 
-            AnimatorSet hotseatSlideIn = new AnimatorSet();
-            hotseatSlideIn.play(ObjectAnimator.ofFloat(hotseat, View.TRANSLATION_Y, startY, endY));
-            hotseatSlideIn.play(ObjectAnimator.ofFloat(allAppsScrim, SCRIM_PROGRESS, startY, endY));
-            hotseatSlideIn.setStartDelay(150);
-            hotseatSlideIn.setDuration(317);
-            hotseatSlideIn.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
+            allAppsController.setProgress(startY);
 
-            AnimatorSet hotseatOvershoot = new AnimatorSet();
-            hotseatOvershoot.play(ObjectAnimator.ofFloat(hotseat, View.TRANSLATION_Y, endY, 0));
-            hotseatOvershoot.play(ObjectAnimator.ofFloat(allAppsScrim, SCRIM_PROGRESS, endY, 0));
-            hotseatOvershoot.setDuration(153);
-            hotseatOvershoot.setInterpolator(Interpolators.OVERSHOOT_0);
+            Animator allAppsSlideIn =
+                    ObjectAnimator.ofFloat(allAppsController, ALL_APPS_PROGRESS, startY, slideEnd);
+            allAppsSlideIn.setStartDelay(150);
+            allAppsSlideIn.setDuration(317);
+            allAppsSlideIn.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
+
+            Animator allAppsOvershoot =
+                    ObjectAnimator.ofFloat(allAppsController, ALL_APPS_PROGRESS, slideEnd, 1f);
+            allAppsOvershoot.setDuration(153);
+            allAppsOvershoot.setInterpolator(Interpolators.OVERSHOOT_0);
 
             AnimatorSet resumeLauncherAnimation = new AnimatorSet();
             resumeLauncherAnimation.play(workspaceAnimator);
-            resumeLauncherAnimation.playSequentially(hotseatSlideIn, hotseatOvershoot);
+            resumeLauncherAnimation.playSequentially(allAppsSlideIn, allAppsOvershoot);
             return resumeLauncherAnimation;
         }
     }
diff --git a/quickstep/src/com/android/launcher3/uioverrides/IgnoreTouchesInQuickScrub.java b/quickstep/src/com/android/launcher3/uioverrides/IgnoreTouchesInQuickScrub.java
new file mode 100644
index 0000000..92aa1fd
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/uioverrides/IgnoreTouchesInQuickScrub.java
@@ -0,0 +1,46 @@
+/*
+ * 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.launcher3.uioverrides;
+
+import android.view.MotionEvent;
+
+import com.android.launcher3.Launcher;
+import com.android.launcher3.util.TouchController;
+import com.android.quickstep.QuickScrubController;
+import com.android.quickstep.RecentsView;
+
+/**
+ * Consumes touches when quick scrub is enabled.
+ */
+public class IgnoreTouchesInQuickScrub implements TouchController {
+
+    private QuickScrubController mQuickScrubController;
+
+    public IgnoreTouchesInQuickScrub(Launcher l) {
+        mQuickScrubController = ((RecentsView) l.getOverviewPanel()).getQuickScrubController();
+    }
+
+    @Override
+    public boolean onControllerTouchEvent(MotionEvent ev) {
+        return true;
+    }
+
+    @Override
+    public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
+        return mQuickScrubController.isQuickScrubEnabled();
+    }
+}
diff --git a/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java b/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java
index 8a7b257..1c92f2c 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java
@@ -42,12 +42,14 @@
 
     public static TouchController[] createTouchControllers(Launcher launcher) {
         if (FeatureFlags.ENABLE_TWO_SWIPE_TARGETS) {
-            return new TouchController[]{
+            return new TouchController[] {
+                    new IgnoreTouchesInQuickScrub(launcher),
                     new EdgeSwipeController(launcher),
                     new TwoStepSwipeController(launcher),
                     new OverviewSwipeController(launcher)};
         } else {
-            return new TouchController[]{
+            return new TouchController[] {
+                    new IgnoreTouchesInQuickScrub(launcher),
                     new TwoStepSwipeController(launcher),
                     new OverviewSwipeController(launcher)};
         }
diff --git a/quickstep/src/com/android/quickstep/NavBarSwipeInteractionHandler.java b/quickstep/src/com/android/quickstep/NavBarSwipeInteractionHandler.java
index eb5195c..b295df0 100644
--- a/quickstep/src/com/android/quickstep/NavBarSwipeInteractionHandler.java
+++ b/quickstep/src/com/android/quickstep/NavBarSwipeInteractionHandler.java
@@ -15,6 +15,11 @@
  */
 package com.android.quickstep;
 
+import static com.android.quickstep.TouchInteractionService.INTERACTION_NORMAL;
+import static com.android.quickstep.TouchInteractionService.INTERACTION_QUICK_SCRUB;
+import static com.android.quickstep.TouchInteractionService.INTERACTION_QUICK_SWITCH;
+import static com.android.quickstep.TouchInteractionService.isInteractionQuick;
+
 import android.animation.Animator;
 import android.animation.ObjectAnimator;
 import android.animation.RectEvaluator;
@@ -44,8 +49,9 @@
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.states.InternalStateHandler;
-import com.android.launcher3.uioverrides.RecentsViewStateController;
+import com.android.launcher3.util.Preconditions;
 import com.android.launcher3.util.TraceHelper;
+import com.android.quickstep.TouchInteractionService.InteractionType;
 import com.android.systemui.shared.recents.model.RecentsTaskLoadPlan;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.recents.model.Task.TaskKey;
@@ -93,20 +99,22 @@
     private Launcher mLauncher;
     private SnapshotDragView mDragView;
     private RecentsView mRecentsView;
-    private RecentsViewStateController mStateController;
     private QuickScrubController mQuickScrubController;
     private Hotseat mHotseat;
 
+    private boolean mWasLauncherAlreadyVisible;
+
     private boolean mLauncherReady;
     private boolean mTouchEndHandled;
     private float mCurrentDisplacement;
-    private @TouchInteractionService.InteractionType int mInteractionType;
+
+    private @InteractionType int mInteractionType;
     private boolean mStartedQuickScrubFromHome;
 
     private Bitmap mTaskSnapshot;
 
     NavBarSwipeInteractionHandler(RunningTaskInfo runningTaskInfo, Context context,
-            @TouchInteractionService.InteractionType int interactionType) {
+            @InteractionType int interactionType) {
         // TODO: We need a better way for this
         TaskKey taskKey = new TaskKey(runningTaskInfo.id, 0, null, UserHandle.myUserId(), 0);
         mRunningTask = new Task(taskKey, null, null, "", "", Color.BLACK, Color.BLACK,
@@ -183,8 +191,8 @@
         mLauncher = launcher;
         mRecentsView = launcher.getOverviewPanel();
         mRecentsView.showTask(mRunningTask);
-        mStateController = mRecentsView.getStateController();
         mHotseat = mLauncher.getHotseat();
+        mWasLauncherAlreadyVisible = alreadyOnHome;
 
         AbstractFloatingView.closeAllOpenViews(mLauncher, alreadyOnHome);
         mLauncher.getStateManager().goToState(LauncherState.OVERVIEW, alreadyOnHome);
@@ -194,17 +202,8 @@
         mDragView.setPivotX(0);
         mDragView.setPivotY(0);
 
-        boolean interactionIsQuick
-                = mInteractionType == TouchInteractionService.INTERACTION_QUICK_SCRUB
-                || mInteractionType == TouchInteractionService.INTERACTION_QUICK_SWITCH;
-        mStartedQuickScrubFromHome = alreadyOnHome && interactionIsQuick;
-        if (interactionIsQuick) {
-            mQuickScrubController = mRecentsView.getQuickScrubController();
-            mQuickScrubController.onQuickScrubStart(mStartedQuickScrubFromHome);
-            animateToProgress(1f, MAX_SWIPE_DURATION);
-            if (mStartedQuickScrubFromHome) {
-                mDragView.setVisibility(View.INVISIBLE);
-            }
+        if (isInteractionQuick(mInteractionType)) {
+            updateUiForQuickScrub();
         }
 
         // Optimization
@@ -215,6 +214,34 @@
         TraceHelper.partitionSection("TouchInt", "Launcher on new intent");
     }
 
+
+    public void updateInteractionType(@InteractionType int interactionType) {
+        Preconditions.assertUIThread();
+        if (mInteractionType != INTERACTION_NORMAL) {
+            throw new IllegalArgumentException(
+                    "Can't change interaction type from " + mInteractionType);
+        }
+        if (!isInteractionQuick(interactionType)) {
+            throw new IllegalArgumentException(
+                    "Can't change interaction type to " + interactionType);
+        }
+        mInteractionType = interactionType;
+
+        if (mLauncher != null) {
+            updateUiForQuickScrub();
+        }
+    }
+
+    private void updateUiForQuickScrub() {
+        mStartedQuickScrubFromHome = mWasLauncherAlreadyVisible;
+        mQuickScrubController = mRecentsView.getQuickScrubController();
+        mQuickScrubController.onQuickScrubStart(mStartedQuickScrubFromHome);
+        animateToProgress(1f, MAX_SWIPE_DURATION);
+        if (mStartedQuickScrubFromHome) {
+            mDragView.setVisibility(View.INVISIBLE);
+        }
+    }
+
     @UiThread
     public void updateDisplacement(float displacement) {
         mCurrentDisplacement = displacement;
@@ -334,7 +361,7 @@
         if (currentRecentsPage instanceof TaskView) {
             ((TaskView) currentRecentsPage).animateIconToScale(1f);
         }
-        if (mInteractionType == TouchInteractionService.INTERACTION_QUICK_SWITCH) {
+        if (mInteractionType == INTERACTION_QUICK_SWITCH) {
             for (int i = mRecentsView.getFirstTaskIndex(); i < mRecentsView.getPageCount(); i++) {
                 TaskView taskView = (TaskView) mRecentsView.getPageAt(i);
                 // TODO: Match the keys directly
@@ -345,7 +372,7 @@
                     break;
                 }
             }
-        } else if (mInteractionType == TouchInteractionService.INTERACTION_QUICK_SCRUB) {
+        } else if (mInteractionType == INTERACTION_QUICK_SCRUB) {
             if (mQuickScrubController != null) {
                 mQuickScrubController.snapToPageForCurrentQuickScrubSection();
             }
@@ -355,12 +382,16 @@
     public void onQuickScrubEnd() {
         if (mQuickScrubController != null) {
             mQuickScrubController.onQuickScrubEnd();
+        } else {
+            // TODO:
         }
     }
 
     public void onQuickScrubProgress(float progress) {
         if (mQuickScrubController != null) {
             mQuickScrubController.onQuickScrubProgress(progress);
+        } else {
+            // TODO:
         }
     }
 }
diff --git a/quickstep/src/com/android/quickstep/QuickScrubController.java b/quickstep/src/com/android/quickstep/QuickScrubController.java
index f4c2055..d656f8a 100644
--- a/quickstep/src/com/android/quickstep/QuickScrubController.java
+++ b/quickstep/src/com/android/quickstep/QuickScrubController.java
@@ -40,6 +40,7 @@
 
     private int mQuickScrubSection;
     private int mStartPage;
+    private boolean mQuickScrubEnabled;
 
     public QuickScrubController(Launcher launcher) {
         mLauncher = launcher;
@@ -51,11 +52,14 @@
         mRecentsView = mLauncher.getOverviewPanel();
         mStartPage = startingFromHome ? 0 : mRecentsView.getFirstTaskIndex();
         mQuickScrubSection = 0;
+        mQuickScrubEnabled = true;
     }
 
     public void onQuickScrubEnd() {
         mAutoAdvanceAlarm.cancelAlarm();
-        if (mRecentsView != null) {
+        if (mRecentsView == null) {
+            mQuickScrubEnabled = false;
+        } else {
             int page = mRecentsView.getNextPage();
             // Settle on the page then launch it.
             int snapDuration = Math.abs(page - mRecentsView.getPageNearestToCenterOfScreen())
@@ -67,10 +71,15 @@
                 } else {
                     ((TaskView) mRecentsView.getPageAt(page)).launchTask(true);
                 }
+                mQuickScrubEnabled = false;
             }, snapDuration);
         }
     }
 
+    public boolean isQuickScrubEnabled() {
+        return mQuickScrubEnabled;
+    }
+
     public void onQuickScrubProgress(float progress) {
         int quickScrubSection = Math.round(progress * NUM_QUICK_SCRUB_SECTIONS);
         if (quickScrubSection != mQuickScrubSection) {
diff --git a/quickstep/src/com/android/quickstep/TouchInteractionService.java b/quickstep/src/com/android/quickstep/TouchInteractionService.java
index c35ffee..9b31c14 100644
--- a/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -52,6 +52,7 @@
 
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.util.TraceHelper;
 import com.android.systemui.shared.recents.IOverviewProxy;
 import com.android.systemui.shared.recents.ISystemUiProxy;
@@ -99,6 +100,7 @@
         @Override
         public void onQuickSwitch() {
             startTouchTracking(INTERACTION_QUICK_SWITCH);
+            mInteractionHandler = null;
         }
 
         @Override
@@ -110,6 +112,7 @@
         public void onQuickScrubEnd() {
             if (mInteractionHandler != null) {
                 mInteractionHandler.onQuickScrubEnd();
+                mInteractionHandler = null;
             }
         }
 
@@ -137,6 +140,7 @@
     private Intent mHomeIntent;
     private ComponentName mLauncher;
     private MotionEventQueue mEventQueue;
+    private MainThreadExecutor mMainThreadExecutor;
 
     private final PointF mDownPos = new PointF();
     private final PointF mLastPos = new PointF();
@@ -156,6 +160,7 @@
         super.onCreate();
         mAM = ActivityManagerWrapper.getInstance();
         mRecentsModel = RecentsModel.getInstance(this);
+        mMainThreadExecutor = new MainThreadExecutor();
 
         mHomeIntent = new Intent(Intent.ACTION_MAIN)
                 .addCategory(Intent.CATEGORY_HOME)
@@ -284,7 +289,17 @@
         return mDisplayRotation == Surface.ROTATION_270 && mStableInsets.left > 0;
     }
 
+
     private void startTouchTracking(@InteractionType int interactionType) {
+        if (isInteractionQuick(interactionType)) {
+            // TODO: Send action cancel if its the Launcher consumer
+        }
+        if (mInteractionHandler != null) {
+            final NavBarSwipeInteractionHandler handler = mInteractionHandler;
+            mMainThreadExecutor.execute(() -> handler.updateInteractionType(interactionType));
+            return;
+        }
+
         // Create the shared handler
         final NavBarSwipeInteractionHandler handler =
                 new NavBarSwipeInteractionHandler(mRunningTask, this, interactionType);
@@ -430,4 +445,9 @@
             ev.setEdgeFlags(flags);
         }
     }
+
+    public static boolean isInteractionQuick(@InteractionType int interactionType) {
+        return interactionType == INTERACTION_QUICK_SCRUB ||
+                interactionType == INTERACTION_QUICK_SWITCH;
+    }
 }
diff --git a/res/drawable/ic_star_rating.xml b/res/drawable/ic_star_rating.xml
deleted file mode 100644
index 4e34fa3..0000000
--- a/res/drawable/ic_star_rating.xml
+++ /dev/null
@@ -1,27 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2017 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.
--->
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="12dp"
-    android:height="12dp"
-    android:viewportWidth="12"
-    android:viewportHeight="12">
-
-    <path
-        android:fillColor="#FB8C00"
-        android:fillType="evenOdd"
-        android:strokeWidth="1"
-        android:pathData="M 9.76511755 11.9348136 L 8.33665684 7.16088817 L 12.080006 4.41656311 L 7.49967039 4.41856896 L 6.03138903 0 L 4.57932894 4.41856896 L -1.34115008e-16 4.41656311 L 3.72612122 7.16088817 L 2.29967385 11.9348136 L 6.03138903 8.82574452 Z" />
-</vector>
\ No newline at end of file
diff --git a/res/layout/all_apps_discovery_item.xml b/res/layout/all_apps_discovery_item.xml
deleted file mode 100644
index 728283f..0000000
--- a/res/layout/all_apps_discovery_item.xml
+++ /dev/null
@@ -1,102 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2017 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.
--->
-<com.android.launcher3.discovery.AppDiscoveryItemView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:clickable="true"
-    android:background="?android:selectableItemBackground">
-
-    <ImageView
-        android:id="@+id/image"
-        android:layout_width="56dp"
-        android:layout_height="56dp"
-        android:padding="8dp"
-        android:scaleType="fitCenter"
-        android:focusable="false"
-        android:importantForAccessibility="no"/>
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:orientation="vertical"
-        android:layout_centerVertical="true"
-        android:layout_toRightOf="@id/image">
-
-        <TextView
-            android:id="@+id/title"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:textColor="?android:textColorSecondary"
-            android:textSize="15sp"/>
-
-        <LinearLayout
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:orientation="horizontal">
-            <TextView
-                android:id="@+id/rating"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:textColor="?android:textColorSecondary"
-                android:textSize="14sp"
-                android:layout_gravity="center_vertical"
-                android:includeFontPadding="false"/>
-
-            <com.android.launcher3.discovery.RatingView
-                android:id="@+id/rating_view"
-                android:layout_width="70dp"
-                android:layout_height="16dp"
-                android:layout_marginLeft="5dp"
-                android:layout_marginRight="5dp"
-                android:layout_gravity="center_vertical"/>
-
-            <TextView
-                android:id="@+id/review_count"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_marginLeft="5dp"
-                android:textColor="?android:textColorHint"
-                android:textSize="14sp"
-                android:layout_gravity="center_vertical"/>
-
-            <Space
-                android:layout_width="0dp"
-                android:layout_height="0dp"
-                android:layout_weight="1"/>
-
-            <TextView
-                android:id="@+id/price"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:textColor="?android:textColorHint"
-                android:textSize="14sp"
-                android:layout_marginRight="12dp"
-                android:textAllCaps="true"/>
-        </LinearLayout>
-    </LinearLayout>
-
-    <ImageView
-        android:importantForAccessibility="no"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_alignParentBottom="true"
-        android:paddingLeft="@dimen/dynamic_grid_edge_margin"
-        android:paddingRight="@dimen/dynamic_grid_edge_margin"
-        android:src="@drawable/all_apps_divider"
-        android:scaleType="fitXY"
-        android:focusable="false" />
-</com.android.launcher3.discovery.AppDiscoveryItemView>
\ No newline at end of file
diff --git a/res/layout/all_apps_discovery_loading_divider.xml b/res/layout/all_apps_discovery_loading_divider.xml
deleted file mode 100644
index 005847c..0000000
--- a/res/layout/all_apps_discovery_loading_divider.xml
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2017 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.
--->
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="6dp"
-    android:paddingLeft="@dimen/dynamic_grid_edge_margin"
-    android:paddingRight="@dimen/dynamic_grid_edge_margin">
-
-    <ProgressBar
-        android:id="@+id/loadingProgressBar"
-        style="@android:style/Widget.Material.ProgressBar.Horizontal"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:minHeight="6dp"
-        android:maxHeight="6dp"
-        android:indeterminate="true"
-        android:layout_gravity="center"/>
-
-    <View
-        android:id="@+id/loadedDivider"
-        android:layout_width="match_parent"
-        android:layout_height="1dp"
-        android:background="@drawable/all_apps_divider"
-        android:layout_gravity="bottom"
-        android:visibility="invisible"/>
-
-</FrameLayout>
\ No newline at end of file
diff --git a/src/com/android/launcher3/allapps/AllAppsGridAdapter.java b/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
index 769f9ba..2103106 100644
--- a/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
+++ b/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
@@ -43,8 +43,6 @@
 import com.android.launcher3.anim.SpringAnimationHandler;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.discovery.AppDiscoveryAppInfo;
-import com.android.launcher3.discovery.AppDiscoveryItemView;
 import com.android.launcher3.util.PackageManagerHelper;
 
 import java.util.List;
@@ -72,17 +70,13 @@
     public static final int VIEW_TYPE_ALL_APPS_DIVIDER = 1 << 5;
     // The divider that separates prediction icons from the app list
     public static final int VIEW_TYPE_PREDICTION_DIVIDER = 1 << 6;
-    public static final int VIEW_TYPE_APPS_LOADING_DIVIDER = 1 << 7;
-    public static final int VIEW_TYPE_DISCOVERY_ITEM = 1 << 8;
-    public static final int VIEW_TYPE_WORK_TAB_FOOTER = 1 << 9;
+    public static final int VIEW_TYPE_WORK_TAB_FOOTER = 1 << 7;
 
     // Common view type masks
     public static final int VIEW_TYPE_MASK_DIVIDER = VIEW_TYPE_ALL_APPS_DIVIDER
             | VIEW_TYPE_PREDICTION_DIVIDER;
     public static final int VIEW_TYPE_MASK_ICON = VIEW_TYPE_ICON
             | VIEW_TYPE_PREDICTION_ICON;
-    public static final int VIEW_TYPE_MASK_CONTENT = VIEW_TYPE_MASK_ICON
-            | VIEW_TYPE_DISCOVERY_ITEM;
     public static final int VIEW_TYPE_MASK_HAS_SPRINGS = VIEW_TYPE_MASK_ICON
             | VIEW_TYPE_PREDICTION_DIVIDER;
 
@@ -161,7 +155,7 @@
             adapterPosition = Math.max(adapterPosition, mApps.getAdapterItems().size() - 1);
             int extraRows = 0;
             for (int i = 0; i <= adapterPosition; i++) {
-                if (!isViewType(items.get(i).viewType, VIEW_TYPE_MASK_CONTENT)) {
+                if (!isViewType(items.get(i).viewType, VIEW_TYPE_MASK_ICON)) {
                     extraRows++;
                 }
             }
@@ -301,12 +295,6 @@
                 // Ensure the all apps icon height matches the workspace icons in portrait mode.
                 icon.getLayoutParams().height = mLauncher.getDeviceProfile().allAppsCellHeightPx;
                 return new ViewHolder(icon);
-            case VIEW_TYPE_DISCOVERY_ITEM:
-                AppDiscoveryItemView appDiscoveryItemView = (AppDiscoveryItemView) mLayoutInflater
-                        .inflate(R.layout.all_apps_discovery_item, parent, false);
-                appDiscoveryItemView.init(mIconClickListener, mLauncher.getAccessibilityDelegate(),
-                        mIconLongClickListener);
-                return new ViewHolder(appDiscoveryItemView);
             case VIEW_TYPE_EMPTY_SEARCH:
                 return new ViewHolder(mLayoutInflater.inflate(R.layout.all_apps_empty_search,
                         parent, false));
@@ -320,10 +308,6 @@
                     }
                 });
                 return new ViewHolder(searchMarketView);
-            case VIEW_TYPE_APPS_LOADING_DIVIDER:
-                View loadingDividerView = mLayoutInflater.inflate(
-                        R.layout.all_apps_discovery_loading_divider, parent, false);
-                return new ViewHolder(loadingDividerView);
             case VIEW_TYPE_PREDICTION_DIVIDER:
             case VIEW_TYPE_ALL_APPS_DIVIDER:
                 return new ViewHolder(mLayoutInflater.inflate(
@@ -346,12 +330,6 @@
                 icon.reset();
                 icon.applyFromApplicationInfo(info);
                 break;
-            case VIEW_TYPE_DISCOVERY_ITEM:
-                AppDiscoveryAppInfo appDiscoveryAppInfo = (AppDiscoveryAppInfo)
-                        mApps.getAdapterItems().get(position).appInfo;
-                AppDiscoveryItemView view = (AppDiscoveryItemView) holder.itemView;
-                view.apply(appDiscoveryAppInfo);
-                break;
             case VIEW_TYPE_EMPTY_SEARCH:
                 TextView emptyViewText = (TextView) holder.itemView;
                 emptyViewText.setText(mEmptySearchMessage);
@@ -366,12 +344,6 @@
                     searchView.setVisibility(View.GONE);
                 }
                 break;
-            case VIEW_TYPE_APPS_LOADING_DIVIDER:
-                int visLoading = mApps.isAppDiscoveryRunning() ? View.VISIBLE : View.GONE;
-                int visLoaded = !mApps.isAppDiscoveryRunning() ? View.VISIBLE : View.GONE;
-                holder.itemView.findViewById(R.id.loadingProgressBar).setVisibility(visLoading);
-                holder.itemView.findViewById(R.id.loadedDivider).setVisibility(visLoaded);
-                break;
             case VIEW_TYPE_ALL_APPS_DIVIDER:
                 // nothing to do
                 break;
diff --git a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
index 4f931ca..4792cc2 100644
--- a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
@@ -170,12 +170,6 @@
                 AllAppsGridAdapter.VIEW_TYPE_EMPTY_SEARCH);
         putSameHeightFor(adapter, widthMeasureSpec, heightMeasureSpec,
                 AllAppsGridAdapter.VIEW_TYPE_WORK_TAB_FOOTER);
-        if (FeatureFlags.DISCOVERY_ENABLED) {
-            putSameHeightFor(adapter, widthMeasureSpec, heightMeasureSpec,
-                    AllAppsGridAdapter.VIEW_TYPE_APPS_LOADING_DIVIDER);
-            putSameHeightFor(adapter, widthMeasureSpec, heightMeasureSpec,
-                    AllAppsGridAdapter.VIEW_TYPE_DISCOVERY_ITEM);
-        }
     }
 
     private void putSameHeightFor(AllAppsGridAdapter adapter, int w, int h, int... viewTypes) {
@@ -263,7 +257,7 @@
         // Always scroll the view to the top so the user can see the changed results
         scrollToTop();
 
-        if (mApps.shouldShowEmptySearch()) {
+        if (mApps.hasNoFilteredResults()) {
             if (mEmptySearchBackground == null) {
                 mEmptySearchBackground = DrawableFactory.get(getContext())
                         .getAllAppsBackground(getContext());
diff --git a/src/com/android/launcher3/allapps/AllAppsTransitionController.java b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
index c02f2df..dadc6cd 100644
--- a/src/com/android/launcher3/allapps/AllAppsTransitionController.java
+++ b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
@@ -37,8 +37,8 @@
 public class AllAppsTransitionController
         implements SearchUiManager.OnScrollRangeChangeListener, LauncherStateManager.StateHandler {
 
-    private static final Property<AllAppsTransitionController, Float> PROGRESS =
-            new Property<AllAppsTransitionController, Float>(Float.class, "progress") {
+    public static final Property<AllAppsTransitionController, Float> ALL_APPS_PROGRESS =
+            new Property<AllAppsTransitionController, Float>(Float.class, "allAppsProgress") {
 
         @Override
         public Float get(AllAppsTransitionController controller) {
@@ -164,7 +164,8 @@
         }
 
         Interpolator interpolator = config.userControlled ? LINEAR : FAST_OUT_SLOW_IN;
-        ObjectAnimator anim = ObjectAnimator.ofFloat(this, PROGRESS, mProgress, targetProgress);
+        ObjectAnimator anim =
+                ObjectAnimator.ofFloat(this, ALL_APPS_PROGRESS, mProgress, targetProgress);
         anim.setDuration(config.duration);
         anim.setInterpolator(interpolator);
         anim.addListener(getProgressAnimatorListener());
diff --git a/src/com/android/launcher3/allapps/AlphabeticalAppsList.java b/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
index eecd009..76828de 100644
--- a/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
+++ b/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
@@ -27,9 +27,6 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.compat.AlphabeticIndexCompat;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.discovery.AppDiscoveryAppInfo;
-import com.android.launcher3.discovery.AppDiscoveryItem;
-import com.android.launcher3.discovery.AppDiscoveryUpdateState;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.ComponentKeyMapper;
@@ -58,8 +55,6 @@
 
     private final int mFastScrollDistributionMode = FAST_SCROLL_FRACTION_DISTRIBUTE_BY_NUM_SECTIONS;
 
-    private AppDiscoveryUpdateState mAppDiscoveryUpdateState;
-
     /**
      * Info about a fast scroller section, depending if sections are merged, the fast scroller
      * sections will not be the same set as the section headers.
@@ -118,17 +113,6 @@
             return item;
         }
 
-        public static AdapterItem asDiscoveryItem(int pos, String sectionName, AppInfo appInfo,
-                int appIndex) {
-            AdapterItem item = new AdapterItem();
-            item.viewType = AllAppsGridAdapter.VIEW_TYPE_DISCOVERY_ITEM;
-            item.position = pos;
-            item.sectionName = sectionName;
-            item.appInfo = appInfo;
-            item.appIndex = appIndex;
-            return item;
-        }
-
         public static AdapterItem asEmptySearch(int pos) {
             AdapterItem item = new AdapterItem();
             item.viewType = AllAppsGridAdapter.VIEW_TYPE_EMPTY_SEARCH;
@@ -150,13 +134,6 @@
             return item;
         }
 
-        public static AdapterItem asLoadingDivider(int pos) {
-            AdapterItem item = new AdapterItem();
-            item.viewType = AllAppsGridAdapter.VIEW_TYPE_APPS_LOADING_DIVIDER;
-            item.position = pos;
-            return item;
-        }
-
         public static AdapterItem asMarketSearch(int pos) {
             AdapterItem item = new AdapterItem();
             item.viewType = AllAppsGridAdapter.VIEW_TYPE_SEARCH_MARKET;
@@ -188,7 +165,6 @@
     private final List<ComponentKeyMapper<AppInfo>> mPredictedAppComponents = new ArrayList<>();
     // The set of predicted apps resolved from the component names and the current set of apps
     private final List<AppInfo> mPredictedApps = new ArrayList<>();
-    private final List<AppDiscoveryAppInfo> mDiscoveredApps = new ArrayList<>();
     // Is it the work profile app list.
     private final boolean mIsWork;
 
@@ -293,10 +269,6 @@
         return (mSearchResults != null) && mFilteredApps.isEmpty();
     }
 
-    boolean shouldShowEmptySearch() {
-        return hasNoFilteredResults() && !isAppDiscoveryRunning() && mDiscoveredApps.isEmpty();
-    }
-
     /**
      * Sets the sorted list of filtered components.
      */
@@ -310,20 +282,6 @@
         return false;
     }
 
-    public void onAppDiscoverySearchUpdate(@Nullable AppDiscoveryItem app,
-                @NonNull AppDiscoveryUpdateState state) {
-        mAppDiscoveryUpdateState = state;
-        switch (state) {
-            case START:
-                mDiscoveredApps.clear();
-                break;
-            case UPDATE:
-                mDiscoveredApps.add(new AppDiscoveryAppInfo(app));
-                break;
-        }
-        updateAdapterItems();
-    }
-
     private List<AppInfo> processPredictedAppComponents(List<ComponentKeyMapper<AppInfo>> components) {
         if (mComponentToAppMap.isEmpty()) {
             // Apps have not been bound yet.
@@ -540,32 +498,13 @@
         }
 
         if (hasFilter()) {
-            if (isAppDiscoveryRunning() || mDiscoveredApps.size() > 0) {
-                mAdapterItems.add(AdapterItem.asLoadingDivider(position++));
-                // Append all app discovery results
-                for (int i = 0; i < mDiscoveredApps.size(); i++) {
-                    AppDiscoveryAppInfo appDiscoveryAppInfo = mDiscoveredApps.get(i);
-                    if (appDiscoveryAppInfo.isRecent) {
-                        // already handled in getFilteredAppInfos()
-                        continue;
-                    }
-                    AdapterItem item = AdapterItem.asDiscoveryItem(position++,
-                            "", appDiscoveryAppInfo, appIndex++);
-                    mAdapterItems.add(item);
-                }
-
-                if (!isAppDiscoveryRunning()) {
-                    mAdapterItems.add(AdapterItem.asMarketSearch(position++));
-                }
+            // Append the search market item
+            if (hasNoFilteredResults()) {
+                mAdapterItems.add(AdapterItem.asEmptySearch(position++));
             } else {
-                // Append the search market item
-                if (hasNoFilteredResults()) {
-                    mAdapterItems.add(AdapterItem.asEmptySearch(position++));
-                } else {
-                    mAdapterItems.add(AdapterItem.asAllAppsDivider(position++));
-                }
-                mAdapterItems.add(AdapterItem.asMarketSearch(position++));
+                mAdapterItems.add(AdapterItem.asAllAppsDivider(position++));
             }
+            mAdapterItems.add(AdapterItem.asMarketSearch(position++));
         }
 
         if (mNumAppsPerRow != 0) {
@@ -635,11 +574,6 @@
                         == PackageManager.PERMISSION_GRANTED);
     }
 
-    public boolean isAppDiscoveryRunning() {
-        return mAppDiscoveryUpdateState == AppDiscoveryUpdateState.START
-                || mAppDiscoveryUpdateState == AppDiscoveryUpdateState.UPDATE;
-    }
-
     private List<AppInfo> getFiltersAppInfos() {
         if (mSearchResults == null) {
             return mApps;
@@ -651,17 +585,6 @@
                 result.add(match);
             }
         }
-
-        // adding recently used instant apps
-        if (mDiscoveredApps.size() > 0) {
-            for (int i = 0; i < mDiscoveredApps.size(); i++) {
-                AppDiscoveryAppInfo discoveryAppInfo = mDiscoveredApps.get(i);
-                if (discoveryAppInfo.isRecent) {
-                    result.add(discoveryAppInfo);
-                }
-            }
-            Collections.sort(result, mAppNameComparator);
-        }
         return result;
     }
 
diff --git a/src/com/android/launcher3/allapps/search/AllAppsSearchBarController.java b/src/com/android/launcher3/allapps/search/AllAppsSearchBarController.java
index bf03a0e..e83904f 100644
--- a/src/com/android/launcher3/allapps/search/AllAppsSearchBarController.java
+++ b/src/com/android/launcher3/allapps/search/AllAppsSearchBarController.java
@@ -28,8 +28,6 @@
 import com.android.launcher3.ExtendedEditText;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.discovery.AppDiscoveryItem;
-import com.android.launcher3.discovery.AppDiscoveryUpdateState;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.PackageManagerHelper;
 
@@ -164,18 +162,6 @@
          * Called when the search results should be cleared.
          */
         void clearSearchResult();
-
-        /**
-         * Called when the app discovery is providing an update of search, which can either be
-         * START for starting a new discovery,
-         * UPDATE for providing a new search result, can be called multiple times,
-         * END for indicating the end of results.
-         *
-         * @param app result item if UPDATE, else null
-         * @param app the update state, START, UPDATE or END
-         */
-        void onAppDiscoverySearchUpdate(@Nullable AppDiscoveryItem app,
-                @NonNull AppDiscoveryUpdateState state);
     }
 
 }
\ No newline at end of file
diff --git a/src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java b/src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java
index ed41f13..6f07eeb 100644
--- a/src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java
+++ b/src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java
@@ -39,8 +39,6 @@
 import com.android.launcher3.allapps.AllAppsContainerView;
 import com.android.launcher3.allapps.AlphabeticalAppsList;
 import com.android.launcher3.allapps.SearchUiManager;
-import com.android.launcher3.discovery.AppDiscoveryItem;
-import com.android.launcher3.discovery.AppDiscoveryUpdateState;
 import com.android.launcher3.graphics.TintedDrawableSpan;
 import com.android.launcher3.util.ComponentKey;
 
@@ -187,15 +185,6 @@
         mAppsView.onClearSearchResult();
     }
 
-    @Override
-    public void onAppDiscoverySearchUpdate(
-            @Nullable AppDiscoveryItem app, @NonNull AppDiscoveryUpdateState state) {
-        if (!mLauncher.isDestroyed()) {
-            mApps.onAppDiscoverySearchUpdate(app, state);
-            notifyResultChanged();
-        }
-    }
-
     private void notifyResultChanged() {
         mElevationController.reset();
         mAppsView.onSearchResultsChanged();
diff --git a/src/com/android/launcher3/config/BaseFlags.java b/src/com/android/launcher3/config/BaseFlags.java
index 2d0e630..059b04e 100644
--- a/src/com/android/launcher3/config/BaseFlags.java
+++ b/src/com/android/launcher3/config/BaseFlags.java
@@ -44,8 +44,6 @@
     public static final boolean QSB_ON_FIRST_SCREEN = true;
     // When enabled the all-apps icon is not added to the hotseat.
     public static final boolean NO_ALL_APPS_ICON = true;
-    // When enabled, app discovery will be enabled if service is implemented
-    public static final boolean DISCOVERY_ENABLED = false;
 
     // When true, custom widgets are loaded using CustomWidgetParser.
     public static final boolean ENABLE_CUSTOM_WIDGETS = false;
diff --git a/src/com/android/launcher3/discovery/AppDiscoveryAppInfo.java b/src/com/android/launcher3/discovery/AppDiscoveryAppInfo.java
deleted file mode 100644
index 26e5066..0000000
--- a/src/com/android/launcher3/discovery/AppDiscoveryAppInfo.java
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright (C) 2017 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.launcher3.discovery;
-
-import android.content.ComponentName;
-import android.content.Intent;
-import android.graphics.Color;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-
-import com.android.launcher3.AppInfo;
-import com.android.launcher3.LauncherSettings;
-import com.android.launcher3.ShortcutInfo;
-import com.android.launcher3.graphics.ColorExtractor;
-
-public class AppDiscoveryAppInfo extends AppInfo {
-
-    public final boolean showAsDiscoveryItem;
-    public final boolean isInstantApp;
-    public final boolean isRecent;
-    public final float rating;
-    public final long reviewCount;
-    public final @NonNull String publisher;
-    public final @NonNull Intent installIntent;
-    public final @NonNull Intent launchIntent;
-    public final @Nullable String priceFormatted;
-
-    public AppDiscoveryAppInfo(AppDiscoveryItem item) {
-        this.intent = item.isInstantApp ? item.launchIntent : item.installIntent;
-        this.title = item.title;
-        this.iconBitmap = item.bitmap;
-        this.iconColor = iconBitmap == null ? Color.TRANSPARENT :
-                ColorExtractor.findDominantColorByHue(item.bitmap);
-        this.usingLowResIcon = false;
-        this.isInstantApp = item.isInstantApp;
-        this.isRecent = item.isRecent;
-        this.rating = item.starRating;
-        this.showAsDiscoveryItem = true;
-        this.publisher = item.publisher != null ? item.publisher : "";
-        this.priceFormatted = item.price;
-        this.componentName = new ComponentName(item.packageName, "");
-        this.installIntent = item.installIntent;
-        this.launchIntent = item.launchIntent;
-        this.reviewCount = item.reviewCount;
-        this.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT;
-    }
-
-    @Override
-    public ShortcutInfo makeShortcut() {
-        if (!isDragAndDropSupported()) {
-            throw new RuntimeException("DnD is currently not supported for discovered store apps");
-        }
-        return super.makeShortcut();
-    }
-
-    public boolean isDragAndDropSupported() {
-        return isInstantApp;
-    }
-
-}
diff --git a/src/com/android/launcher3/discovery/AppDiscoveryItem.java b/src/com/android/launcher3/discovery/AppDiscoveryItem.java
deleted file mode 100644
index 2e48b25..0000000
--- a/src/com/android/launcher3/discovery/AppDiscoveryItem.java
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright (C) 2017 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.launcher3.discovery;
-
-import android.content.Intent;
-import android.graphics.Bitmap;
-
-/**
- * This class represents the model for a discovered app via app discovery.
- * It holds all information for one result retrieved from an app discovery service.
- */
-public class AppDiscoveryItem {
-
-    public final String packageName;
-    public final boolean isInstantApp;
-    public final boolean isRecent;
-    public final float starRating;
-    public final long reviewCount;
-    public final Intent launchIntent;
-    public final Intent installIntent;
-    public final CharSequence title;
-    public final String publisher;
-    public final String price;
-    public final Bitmap bitmap;
-
-    public AppDiscoveryItem(String packageName,
-                            boolean isInstantApp,
-                            boolean isRecent,
-                            float starRating,
-                            long reviewCount,
-                            CharSequence title,
-                            String publisher,
-                            Bitmap bitmap,
-                            String price,
-                            Intent launchIntent,
-                            Intent installIntent) {
-        this.packageName = packageName;
-        this.isInstantApp = isInstantApp;
-        this.isRecent = isRecent;
-        this.starRating = starRating;
-        this.reviewCount = reviewCount;
-        this.launchIntent = launchIntent;
-        this.installIntent = installIntent;
-        this.title = title;
-        this.publisher = publisher;
-        this.price = price;
-        this.bitmap = bitmap;
-    }
-
-}
diff --git a/src/com/android/launcher3/discovery/AppDiscoveryItemView.java b/src/com/android/launcher3/discovery/AppDiscoveryItemView.java
deleted file mode 100644
index 809d724..0000000
--- a/src/com/android/launcher3/discovery/AppDiscoveryItemView.java
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (C) 2017 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.launcher3.discovery;
-
-import android.content.Context;
-import android.support.annotation.NonNull;
-import android.util.AttributeSet;
-import android.view.View;
-import android.widget.ImageView;
-import android.widget.RelativeLayout;
-import android.widget.TextView;
-
-import com.android.launcher3.R;
-
-import java.text.DecimalFormat;
-import java.text.NumberFormat;
-
-public class AppDiscoveryItemView extends RelativeLayout {
-
-    private static boolean SHOW_REVIEW_COUNT = false;
-
-    private ImageView mImage;
-    private TextView mTitle;
-    private TextView mRatingText;
-    private RatingView mRatingView;
-    private TextView mReviewCount;
-    private TextView mPrice;
-    private OnLongClickListener mOnLongClickListener;
-
-    public AppDiscoveryItemView(Context context) {
-        this(context, null);
-    }
-
-    public AppDiscoveryItemView(Context context, AttributeSet attrs) {
-        this(context, attrs, 0);
-    }
-
-    public AppDiscoveryItemView(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-    }
-
-    @Override
-    protected void onFinishInflate() {
-        super.onFinishInflate();
-        this.mImage = (ImageView) findViewById(R.id.image);
-        this.mTitle = (TextView) findViewById(R.id.title);
-        this.mRatingText = (TextView) findViewById(R.id.rating);
-        this.mRatingView = (RatingView) findViewById(R.id.rating_view);
-        this.mPrice = (TextView) findViewById(R.id.price);
-        this.mReviewCount = (TextView) findViewById(R.id.review_count);
-    }
-
-    public void init(OnClickListener clickListener,
-                     AccessibilityDelegate accessibilityDelegate,
-                     OnLongClickListener onLongClickListener) {
-        setOnClickListener(clickListener);
-        mImage.setOnClickListener(clickListener);
-        setAccessibilityDelegate(accessibilityDelegate);
-        mOnLongClickListener = onLongClickListener;
-    }
-
-    public void apply(@NonNull AppDiscoveryAppInfo info) {
-        setTag(info);
-        mImage.setTag(info);
-        mImage.setImageBitmap(info.iconBitmap);
-        mImage.setOnLongClickListener(info.isDragAndDropSupported() ? mOnLongClickListener : null);
-        mTitle.setText(info.title);
-        mPrice.setText(info.priceFormatted != null ? info.priceFormatted : "");
-        mReviewCount.setVisibility(SHOW_REVIEW_COUNT ? View.VISIBLE : View.GONE);
-        if (info.rating >= 0) {
-            mRatingText.setText(new DecimalFormat("#.0").format(info.rating));
-            mRatingView.setRating(info.rating);
-            mRatingView.setVisibility(View.VISIBLE);
-            String reviewCountFormatted = NumberFormat.getInstance().format(info.reviewCount);
-            mReviewCount.setText("(" + reviewCountFormatted + ")");
-        } else {
-            // if we don't have a rating
-            mRatingView.setVisibility(View.GONE);
-            mRatingText.setText("");
-            mReviewCount.setText("");
-        }
-    }
-}
diff --git a/src/com/android/launcher3/discovery/AppDiscoveryUpdateState.java b/src/com/android/launcher3/discovery/AppDiscoveryUpdateState.java
deleted file mode 100644
index 0700a10..0000000
--- a/src/com/android/launcher3/discovery/AppDiscoveryUpdateState.java
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2017 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.launcher3.discovery;
-
-public enum AppDiscoveryUpdateState {
-    START, UPDATE, END
-}
diff --git a/src/com/android/launcher3/discovery/RatingView.java b/src/com/android/launcher3/discovery/RatingView.java
deleted file mode 100644
index 8fe63d6..0000000
--- a/src/com/android/launcher3/discovery/RatingView.java
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * Copyright (C) 2017 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.launcher3.discovery;
-
-import android.content.Context;
-import android.graphics.Canvas;
-import android.graphics.drawable.ClipDrawable;
-import android.graphics.drawable.Drawable;
-import android.util.AttributeSet;
-import android.view.Gravity;
-import android.view.View;
-
-import com.android.launcher3.R;
-
-/**
- * A simple rating view that shows stars with a rating from 0-5.
- */
-public class RatingView extends View {
-
-    private static final float WIDTH_FACTOR = 0.9f;
-    private static final int MAX_LEVEL = 10000;
-    private static final int MAX_STARS = 5;
-
-    private final Drawable mStarDrawable;
-    private final int mColorGray;
-    private final int mColorHighlight;
-
-    private float rating;
-
-    public RatingView(Context context) {
-        this(context, null);
-    }
-
-    public RatingView(Context context, AttributeSet attrs) {
-        this(context, attrs, 0);
-    }
-
-    public RatingView(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-        mStarDrawable = getResources().getDrawable(R.drawable.ic_star_rating, null);
-        mColorGray = 0x1E000000;
-        mColorHighlight = 0x8A000000;
-    }
-
-    public void setRating(float rating) {
-        this.rating = Math.min(Math.max(rating, 0), MAX_STARS);
-    }
-
-    @Override
-    protected void onDraw(Canvas canvas) {
-        drawStars(canvas, MAX_STARS, mColorGray);
-        drawStars(canvas, rating, mColorHighlight);
-    }
-
-    private void drawStars(Canvas canvas, float stars, int color) {
-        int fullWidth = getLayoutParams().width;
-        int cellWidth = fullWidth / MAX_STARS;
-        int starWidth = (int) (cellWidth * WIDTH_FACTOR);
-        int padding = cellWidth - starWidth;
-        int fullStars = (int) stars;
-        float partialStarFactor = stars - fullStars;
-
-        for (int i = 0; i < fullStars; i++) {
-            int x = i * cellWidth + padding;
-            Drawable star = mStarDrawable.getConstantState().newDrawable().mutate();
-            star.setTint(color);
-            star.setBounds(x, padding, x + starWidth, padding + starWidth);
-            star.draw(canvas);
-        }
-        if (partialStarFactor > 0f) {
-            int x = fullStars * cellWidth + padding;
-            ClipDrawable star = new ClipDrawable(mStarDrawable,
-                    Gravity.LEFT, ClipDrawable.HORIZONTAL);
-            star.setTint(color);
-            star.setLevel((int) (MAX_LEVEL * partialStarFactor));
-            star.setBounds(x, padding, x + starWidth, padding + starWidth);
-            star.draw(canvas);
-        }
-    }
-}
diff --git a/src/com/android/launcher3/views/AllAppsScrim.java b/src/com/android/launcher3/views/AllAppsScrim.java
index 6cd40fd..662f99c 100644
--- a/src/com/android/launcher3/views/AllAppsScrim.java
+++ b/src/com/android/launcher3/views/AllAppsScrim.java
@@ -61,25 +61,11 @@
 
     private final NinePatchDrawHelper mShadowHelper = new NinePatchDrawHelper();
 
-    private float mProgress;
     private int mFillAlpha;
 
     private float mDrawHeight;
     private float mDrawOffsetY;
 
-    public static final Property<AllAppsScrim, Float> SCRIM_PROGRESS =
-            new Property<AllAppsScrim, Float>(Float.class, "allAppsScrimProgress") {
-                @Override
-                public Float get(AllAppsScrim allAppsScrim) {
-                    return allAppsScrim.getProgress();
-                }
-
-                @Override
-                public void set(AllAppsScrim allAppsScrim, Float progress) {
-                    allAppsScrim.setProgress(progress);
-                }
-            };
-
     public AllAppsScrim(Context context) {
         this(context, null);
     }
@@ -174,23 +160,17 @@
 
     public void setProgress(float translateY, float alpha) {
         int newAlpha = Math.round(alpha * mAlphaRange + mMinAlpha);
-        if (newAlpha != mFillAlpha) {
-            mFillAlpha = newAlpha;
-            mFillPaint.setAlpha(mFillAlpha);
-            invalidateDrawRect();
-        }
-
-        setProgress(translateY);
-    }
-
-    public void setProgress(float translateY) {
         // Negative translation means the scrim is moving up. For negative translation, we change
         // draw offset as it requires redraw (since more area of the scrim needs to be shown). For
         // position translation, we simply translate the scrim down as it avoids invalidate and
         // hence could be optimized by the platform.
         float drawOffsetY = Math.min(translateY, 0);
 
-        if (drawOffsetY != mDrawOffsetY) {
+        if (newAlpha != mFillAlpha || drawOffsetY != mDrawOffsetY) {
+            invalidateDrawRect();
+
+            mFillAlpha = newAlpha;
+            mFillPaint.setAlpha(mFillAlpha);
             mDrawOffsetY = drawOffsetY;
             invalidateDrawRect();
         }
@@ -198,10 +178,6 @@
         setTranslationY(Math.max(translateY, 0));
     }
 
-    public float getProgress() {
-        return mProgress;
-    }
-
     private void invalidateDrawRect() {
         mDrawRect.top = (int) (getHeight()
                 + mDrawOffsetY - mDrawHeight + mPadding.top - mShadowBlur - 0.5f);