Merge "Replacing some method definitions with default platform implementations" into ub-launcher3-master
diff --git a/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java b/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
index b59e4ee..530d757 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
@@ -17,7 +17,6 @@
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
-import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
 import android.view.View;
 
@@ -27,6 +26,7 @@
 import com.android.launcher3.LauncherStateManager.StateHandler;
 import com.android.launcher3.anim.AnimationLayerSet;
 import com.android.launcher3.anim.AnimationSuccessListener;
+import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.Interpolators;
 import com.android.quickstep.AnimatedFloat;
 import com.android.quickstep.RecentsView;
@@ -55,17 +55,17 @@
 
     @Override
     public void setStateWithAnimation(LauncherState toState, AnimationLayerSet layerViews,
-            AnimatorSet anim, AnimationConfig config) {
+            AnimatorSetBuilder builder, AnimationConfig config) {
         ObjectAnimator progressAnim =
                 mTransitionProgress.animateToValue(toState == LauncherState.OVERVIEW ? 1 : 0);
         progressAnim.setDuration(config.duration);
         progressAnim.setInterpolator(Interpolators.LINEAR);
-        anim.play(progressAnim);
+        builder.play(progressAnim);
 
         ObjectAnimator visibilityAnim = animateVisibility(toState == LauncherState.OVERVIEW);
         visibilityAnim.setDuration(config.duration);
         visibilityAnim.setInterpolator(Interpolators.LINEAR);
-        anim.play(visibilityAnim);
+        builder.play(visibilityAnim);
     }
 
     public void setVisibility(boolean isVisible) {
diff --git a/res/layout/all_apps.xml b/res/layout/all_apps.xml
index 6e91095..be509ed 100644
--- a/res/layout/all_apps.xml
+++ b/res/layout/all_apps.xml
@@ -48,12 +48,16 @@
             android:id="@+id/divider"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
+            android:layout_marginLeft="@dimen/all_apps_tabs_side_padding"
+            android:layout_marginRight="@dimen/all_apps_tabs_side_padding"
             android:layout_alignBottom="@+id/tabs" />
 
         <com.android.launcher3.views.SlidingTabStrip
             android:id="@+id/tabs"
             android:layout_width="match_parent"
             android:layout_height="@dimen/all_apps_header_tab_height"
+            android:layout_marginLeft="@dimen/all_apps_tabs_side_padding"
+            android:layout_marginRight="@dimen/all_apps_tabs_side_padding"
             android:layout_below="@id/header_content"
             android:orientation="horizontal" >
             <Button
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index e7f45c2..e22c7c2 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -96,6 +96,7 @@
     <dimen name="all_apps_prediction_row_divider_height">17dp</dimen>
     <dimen name="all_apps_work_profile_tab_footer_top_padding">16dp</dimen>
     <dimen name="all_apps_work_profile_tab_footer_bottom_padding">20dp</dimen>
+    <dimen name="all_apps_tabs_side_padding">12dp</dimen>
 
 <!-- Search bar in All Apps -->
     <dimen name="all_apps_header_max_elevation">3dp</dimen>
diff --git a/src/com/android/launcher3/BaseRecyclerView.java b/src/com/android/launcher3/BaseRecyclerView.java
index bce0e2e..76c7845 100644
--- a/src/com/android/launcher3/BaseRecyclerView.java
+++ b/src/com/android/launcher3/BaseRecyclerView.java
@@ -17,13 +17,11 @@
 package com.android.launcher3;
 
 import android.content.Context;
-import android.graphics.Canvas;
 import android.support.v7.widget.RecyclerView;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.TextView;
 
 import com.android.launcher3.views.RecyclerViewFastScroller;
 
@@ -91,8 +89,10 @@
      */
     private boolean handleTouchEvent(MotionEvent ev) {
         // Move to mScrollbar's coordinate system.
-        int left = getLeft() - mScrollbar.getLeft();
-        int top = getTop() - mScrollbar.getTop();
+        // We need to take parent into account (view pager's location)
+        ViewGroup parent = (ViewGroup) getParent();
+        int left = parent.getLeft() + getLeft() - mScrollbar.getLeft();
+        int top = parent.getTop() + getTop() - mScrollbar.getTop() - getScrollBarTop();
         ev.offsetLocation(left, top);
         try {
             return mScrollbar.handleTouchEvent(ev);
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index f60bed8..0c573ac 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -1380,7 +1380,6 @@
         } catch (NullPointerException ex) {
             Log.w(TAG, "problem while stopping AppWidgetHost during Launcher destruction", ex);
         }
-        mAppWidgetHost = null;
 
         TextKeyListener.getInstance().release();
         WallpaperColorInfo.getInstance(this).setOnThemeChangeListener(null);
diff --git a/src/com/android/launcher3/LauncherStateManager.java b/src/com/android/launcher3/LauncherStateManager.java
index 2cad95e..de21c7f 100644
--- a/src/com/android/launcher3/LauncherStateManager.java
+++ b/src/com/android/launcher3/LauncherStateManager.java
@@ -28,6 +28,7 @@
 import com.android.launcher3.anim.AnimationLayerSet;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.uioverrides.UiFactory;
 
 /**
@@ -178,7 +179,8 @@
         // transition plays in reverse and use the same duration as previous state.
         mConfig.duration = state == NORMAL ? mState.transitionDuration : state.transitionDuration;
 
-        AnimatorSet animation = createAnimationToNewWorkspaceInternal(state, onCompleteRunnable);
+        AnimatorSet animation = createAnimationToNewWorkspaceInternal(
+                state, new AnimatorSetBuilder(), onCompleteRunnable);
         Runnable runnable = new StartAnimRunnable(animation, state.getFinalFocus(mLauncher));
         if (delay > 0) {
             mUiHandler.postDelayed(runnable, delay);
@@ -196,21 +198,28 @@
      */
     public AnimatorPlaybackController createAnimationToNewWorkspace(
             LauncherState state, long duration) {
+        return createAnimationToNewWorkspace(state, new AnimatorSetBuilder(), duration);
+    }
+
+    public AnimatorPlaybackController createAnimationToNewWorkspace(
+            LauncherState state, AnimatorSetBuilder builder, long duration) {
         mConfig.reset();
         mConfig.userControlled = true;
         mConfig.duration = duration;
         return AnimatorPlaybackController.wrap(
-                createAnimationToNewWorkspaceInternal(state, null), duration);
+                createAnimationToNewWorkspaceInternal(state, builder, null), duration);
     }
 
     protected AnimatorSet createAnimationToNewWorkspaceInternal(final LauncherState state,
-            final Runnable onCompleteRunnable) {
-        final AnimatorSet animation = LauncherAnimUtils.createAnimatorSet();
+            AnimatorSetBuilder builder, final Runnable onCompleteRunnable) {
         final AnimationLayerSet layerViews = new AnimationLayerSet();
 
         for (StateHandler handler : getStateHandlers()) {
-            handler.setStateWithAnimation(state, layerViews, animation, mConfig);
+            builder.startTag(handler);
+            handler.setStateWithAnimation(state, layerViews, builder, mConfig);
         }
+
+        final AnimatorSet animation = builder.build();
         animation.addListener(layerViews);
         animation.addListener(new AnimationSuccessListener() {
 
@@ -331,7 +340,7 @@
          * Sets the UI to {@param state} by animating any changes.
          */
         void setStateWithAnimation(LauncherState toState, AnimationLayerSet layerViews,
-                AnimatorSet anim, AnimationConfig config);
+                AnimatorSetBuilder builder, AnimationConfig config);
     }
 
     public interface StateListener {
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 3d59bad..a67b92a 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -26,7 +26,6 @@
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
-import android.animation.AnimatorSet;
 import android.animation.LayoutTransition;
 import android.animation.ObjectAnimator;
 import android.animation.PropertyValuesHolder;
@@ -64,6 +63,7 @@
 import com.android.launcher3.accessibility.OverviewScreenAccessibilityDelegate;
 import com.android.launcher3.accessibility.WorkspaceAccessibilityHelper;
 import com.android.launcher3.anim.AnimationLayerSet;
+import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.badge.FolderBadgeInfo;
 import com.android.launcher3.compat.AppWidgetManagerCompat;
@@ -1548,9 +1548,9 @@
      */
     @Override
     public void setStateWithAnimation(LauncherState toState, AnimationLayerSet layerViews,
-            AnimatorSet anim, AnimationConfig config) {
+            AnimatorSetBuilder builder, AnimationConfig config) {
         StateTransitionListener listener = new StateTransitionListener(toState);
-        mStateTransitionAnimation.setStateWithAnimation(toState, anim, layerViews, config);
+        mStateTransitionAnimation.setStateWithAnimation(toState, builder, layerViews, config);
 
         // Invalidate the pages now, so that we have the visible pages before the
         // animation is started
@@ -1562,8 +1562,8 @@
         ValueAnimator stepAnimator = ValueAnimator.ofFloat(0, 1);
         stepAnimator.addUpdateListener(listener);
         stepAnimator.setDuration(config.duration);
-        anim.play(stepAnimator);
-        anim.addListener(listener);
+        stepAnimator.addListener(listener);
+        builder.play(stepAnimator);
     }
 
     public void updateAccessibilityFlags() {
@@ -3502,17 +3502,17 @@
 
             mRefreshPending = false;
 
-            mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
-                @Override
-                public boolean evaluate(ItemInfo info, View view) {
-                    if (view instanceof PendingAppWidgetHostView && mInfos.contains(info)) {
-                        mLauncher.removeItem(view, info, false /* deleteFromDb */);
-                        mLauncher.bindAppWidget((LauncherAppWidgetInfo) info);
-                    }
-                    // process all the shortcuts
-                    return false;
+            ArrayList<PendingAppWidgetHostView> views = new ArrayList<>(mInfos.size());
+            mapOverItems(MAP_NO_RECURSE, (info, view) -> {
+                if (view instanceof PendingAppWidgetHostView && mInfos.contains(info)) {
+                    views.add((PendingAppWidgetHostView) view);
                 }
+                // process all children
+                return false;
             });
+            for (PendingAppWidgetHostView view : views) {
+                view.reinflate();
+            }
         }
 
         @Override
diff --git a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
index edf5ada..0ec3142 100644
--- a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
+++ b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
@@ -33,6 +33,7 @@
 import com.android.launcher3.LauncherState.PageAlphaProvider;
 import com.android.launcher3.LauncherStateManager.AnimationConfig;
 import com.android.launcher3.anim.AnimationLayerSet;
+import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.Interpolators;
 
 /**
@@ -110,10 +111,10 @@
         setWorkspaceProperty(toState, NO_ANIM_PROPERTY_SETTER);
     }
 
-    public void setStateWithAnimation(LauncherState toState, AnimatorSet anim,
+    public void setStateWithAnimation(LauncherState toState, AnimatorSetBuilder builder,
             AnimationLayerSet layerViews, AnimationConfig config) {
         AnimatedPropertySetter propertySetter =
-                new AnimatedPropertySetter(config.duration, layerViews, anim);
+                new AnimatedPropertySetter(config.duration, layerViews, builder);
         setWorkspaceProperty(toState, propertySetter);
     }
 
@@ -190,13 +191,13 @@
 
         private final long mDuration;
         private final AnimationLayerSet mLayerViews;
-        private final AnimatorSet mStateAnimator;
+        private final AnimatorSetBuilder mStateAnimator;
 
         public AnimatedPropertySetter(
-                long duration, AnimationLayerSet layerView, AnimatorSet anim) {
+                long duration, AnimationLayerSet layerView, AnimatorSetBuilder builder) {
             mDuration = duration;
             mLayerViews = layerView;
-            mStateAnimator = anim;
+            mStateAnimator = builder;
         }
 
         @Override
diff --git a/src/com/android/launcher3/allapps/AllAppsContainerView.java b/src/com/android/launcher3/allapps/AllAppsContainerView.java
index 0c992ba..d67fb5d 100644
--- a/src/com/android/launcher3/allapps/AllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsContainerView.java
@@ -261,9 +261,6 @@
         if (mLauncher.getDragLayer().isEventOverView(mSearchContainer, ev)) {
             return true;
         }
-        if (mUsingTabs && mLauncher.getDragLayer().isEventOverView(mHeader, ev)) {
-            return true;
-        }
         AllAppsRecyclerView rv = getActiveRecyclerView();
         return rv == null || rv.shouldContainerScroll(ev, mLauncher.getDragLayer());
     }
@@ -555,20 +552,9 @@
             return;
         }
         mHeader.setVisibility(View.VISIBLE);
+        mHeader.setup(mAH, mComponentToAppMap, mNumPredictedAppsPerRow);
 
-        boolean usePredictionRow = mHasPredictions && !mSearchModeWhileUsingTabs;
-        int contentHeight = usePredictionRow ? mLauncher.getDeviceProfile().allAppsCellHeightPx : 0;;
-        if (usePredictionRow && !mUsingTabs) {
-            contentHeight += getResources()
-                    .getDimensionPixelSize(R.dimen.all_apps_prediction_row_divider_height);
-        }
-        AllAppsRecyclerView mainRV = mAH[AdapterHolder.MAIN].recyclerView;
-        AllAppsRecyclerView workRV = mAH[AdapterHolder.WORK].recyclerView;
-        mHeader.setup(mainRV, workRV, contentHeight);
-        mHeader.getPredictionRow().setup(mAH[AdapterHolder.MAIN].adapter,
-                mComponentToAppMap, mNumPredictedAppsPerRow);
-
-        int padding = contentHeight;
+        int padding = mHeader.getPredictionRow().getExpectedHeight();
         if (mHasPredictions && !mUsingTabs) {
             padding += mHeader.getPaddingTop() + mHeader.getPaddingBottom();
         }
diff --git a/src/com/android/launcher3/allapps/AllAppsTransitionController.java b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
index 7ce032f..14ad97b 100644
--- a/src/com/android/launcher3/allapps/AllAppsTransitionController.java
+++ b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
@@ -5,7 +5,6 @@
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
-import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
 import android.util.Property;
 import android.view.View;
@@ -21,6 +20,7 @@
 import com.android.launcher3.Workspace;
 import com.android.launcher3.anim.AnimationLayerSet;
 import com.android.launcher3.anim.AnimationSuccessListener;
+import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.graphics.GradientView;
 import com.android.launcher3.util.SystemUiController;
@@ -122,7 +122,7 @@
      * @param progress value between 0 and 1, 0 shows all apps and 1 shows workspace
      *
      * @see #setState(LauncherState)
-     * @see #setStateWithAnimation(LauncherState, AnimationLayerSet, AnimatorSet, AnimationConfig)
+     * @see #setStateWithAnimation(LauncherState, AnimationLayerSet, AnimatorSetBuilder, AnimationConfig)
      */
     public void setProgress(float progress) {
         mProgress = progress;
@@ -168,7 +168,7 @@
      */
     @Override
     public void setStateWithAnimation(LauncherState toState, AnimationLayerSet layerViews,
-            AnimatorSet animationOut, AnimationConfig config) {
+            AnimatorSetBuilder builder, AnimationConfig config) {
         if (Float.compare(mProgress, toState.verticalProgress) == 0) {
             // Fail fast
             onProgressAnimationEnd();
@@ -182,7 +182,7 @@
         anim.setInterpolator(interpolator);
         anim.addListener(getProgressAnimatorListener());
 
-        animationOut.play(anim);
+        builder.play(anim);
     }
 
     public AnimatorListenerAdapter getProgressAnimatorListener() {
diff --git a/src/com/android/launcher3/allapps/FloatingHeaderView.java b/src/com/android/launcher3/allapps/FloatingHeaderView.java
index 39e6818..dc3afb5 100644
--- a/src/com/android/launcher3/allapps/FloatingHeaderView.java
+++ b/src/com/android/launcher3/allapps/FloatingHeaderView.java
@@ -19,43 +19,38 @@
 import android.animation.ValueAnimator;
 import android.content.Context;
 import android.content.res.Resources;
+import android.graphics.Point;
 import android.graphics.Rect;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v7.widget.RecyclerView;
 import android.util.AttributeSet;
+import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.RelativeLayout;
 
+import com.android.launcher3.AppInfo;
 import com.android.launcher3.R;
+import com.android.launcher3.util.ComponentKey;
+
+import java.util.HashMap;
 
 public class FloatingHeaderView extends RelativeLayout implements
         ValueAnimator.AnimatorUpdateListener {
 
-    private static final boolean SHOW_PREDICTIONS_ONLY_ON_TOP = true;
 
     private final Rect mClip = new Rect(0, 0, Integer.MAX_VALUE, Integer.MAX_VALUE);
     private final ValueAnimator mAnimator = ValueAnimator.ofInt(0, 0);
+    private final Point mTempOffset = new Point();
     private final RecyclerView.OnScrollListener mOnScrollListener = new RecyclerView.OnScrollListener() {
         @Override
         public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
-            if (SHOW_PREDICTIONS_ONLY_ON_TOP) {
-                return;
-            }
-            if (!mTopOnlyMode && newState == RecyclerView.SCROLL_STATE_IDLE
-                    && mTranslationY != -mMaxTranslation && mTranslationY != 0) {
-                float scroll = Math.abs(getCurrentScroll());
-                boolean expand =  scroll > mMaxTranslation
-                        ? Math.abs(mTranslationY) < mMaxTranslation / 2 : true;
-                setExpanded(expand);
-            }
         }
 
         @Override
         public void onScrolled(RecyclerView rv, int dx, int dy) {
-            boolean isMainRV = rv == mMainRV;
-            if (isMainRV != mMainRVActive) {
+            if (rv != mCurrentRV) {
                 return;
             }
 
@@ -63,9 +58,7 @@
                 mAnimator.cancel();
             }
 
-            int current = - (isMainRV
-                    ? mMainRV.getCurrentScrollY()
-                    : mWorkRV.getCurrentScrollY());
+            int current = -mCurrentRV.getCurrentScrollY();
             moved(current);
             apply();
         }
@@ -76,14 +69,14 @@
     private View mDivider;
     private AllAppsRecyclerView mMainRV;
     private AllAppsRecyclerView mWorkRV;
-    private boolean mTopOnlyMode;
-    private boolean mHeaderHidden;
+    private AllAppsRecyclerView mCurrentRV;
+    private ViewGroup mParent;
+    private boolean mTabsHidden;
+    private boolean mHeaderCollapsed;
     private int mMaxTranslation;
     private int mSnappedScrolledY;
     private int mTranslationY;
-    private int mMainScrolledY;
-    private int mWorkScrolledY;
-    private boolean mMainRVActive;
+    private boolean mForwardToRecyclerView;
 
     public FloatingHeaderView(@NonNull Context context) {
         this(context, null);
@@ -101,14 +94,18 @@
         mPredictionRow = findViewById(R.id.header_content);
     }
 
-    public void setup(@NonNull AllAppsRecyclerView personalRV, @Nullable AllAppsRecyclerView workRV,
-                      int predictionRowHeight) {
-        mTopOnlyMode = workRV == null;
-        mTabLayout.setVisibility(mTopOnlyMode ? View.GONE : View.VISIBLE);
-        mPredictionRow.getLayoutParams().height = predictionRowHeight;
-        mMaxTranslation = predictionRowHeight;
-        mMainRV = setupRV(mMainRV, personalRV);
-        mWorkRV = setupRV(mWorkRV, workRV);
+    public void setup(AllAppsContainerView.AdapterHolder[] mAH,
+            HashMap<ComponentKey, AppInfo> componentToAppMap, int numPredictedAppsPerRow) {
+        mTabsHidden = mAH[AllAppsContainerView.AdapterHolder.WORK].recyclerView == null;
+        mTabLayout.setVisibility(mTabsHidden ? View.GONE : View.VISIBLE);
+        mPredictionRow.setPadding(0, 0, 0, mTabsHidden ? getResources()
+                .getDimensionPixelSize(R.dimen.all_apps_prediction_row_divider_height) : 0);
+        mPredictionRow.setup(mAH[AllAppsContainerView.AdapterHolder.MAIN].adapter,
+                componentToAppMap, numPredictedAppsPerRow);
+        mMaxTranslation = mPredictionRow.getExpectedHeight();
+        mMainRV = setupRV(mMainRV, mAH[AllAppsContainerView.AdapterHolder.MAIN].recyclerView);
+        mWorkRV = setupRV(mWorkRV, mAH[AllAppsContainerView.AdapterHolder.WORK].recyclerView);
+        mParent = (ViewGroup) mMainRV.getParent();
         setMainActive(true);
         setupDivider();
     }
@@ -124,16 +121,16 @@
         Resources res = getResources();
         int verticalGap = res.getDimensionPixelSize(R.dimen.all_apps_divider_margin_vertical);
         int sideGap = res.getDimensionPixelSize(R.dimen.dynamic_grid_edge_margin);
-        mDivider.setPadding(sideGap, verticalGap,sideGap, mTopOnlyMode ? verticalGap : 0);
+        mDivider.setPadding(sideGap, verticalGap,sideGap, mTabsHidden ? verticalGap : 0);
         RelativeLayout.LayoutParams lp = (RelativeLayout.LayoutParams) mDivider.getLayoutParams();
         lp.removeRule(RelativeLayout.ALIGN_BOTTOM);
-        lp.addRule(RelativeLayout.ALIGN_BOTTOM, mTopOnlyMode ? R.id.header_content : R.id.tabs);
+        lp.addRule(RelativeLayout.ALIGN_BOTTOM, mTabsHidden ? R.id.header_content : R.id.tabs);
         mDivider.setLayoutParams(lp);
     }
 
     public void setMainActive(boolean active) {
-        mMainRVActive = active;
-        mSnappedScrolledY = getCurrentScroll() - mMaxTranslation;
+        mCurrentRV = active ? mMainRV : mWorkRV;
+        mSnappedScrolledY = mCurrentRV.getCurrentScrollY() - mMaxTranslation;
         setExpanded(true);
     }
 
@@ -141,36 +138,29 @@
         return mPredictionRow;
     }
 
-    public ViewGroup getTabLayout() {
-        return mTabLayout;
-    }
-
     public View getDivider() {
         return mDivider;
     }
 
     public void reset() {
-        mMainScrolledY = 0;
-        mWorkScrolledY = 0;
         setExpanded(true);
     }
 
     private boolean canSnapAt(int currentScrollY) {
-        boolean snapOnlyOnTop = SHOW_PREDICTIONS_ONLY_ON_TOP || mTopOnlyMode;
-        return !snapOnlyOnTop || Math.abs(currentScrollY) <= mPredictionRow.getHeight();
+        return Math.abs(currentScrollY) <= mPredictionRow.getHeight();
     }
 
     private void moved(final int currentScrollY) {
-        if (mHeaderHidden) {
+        if (mHeaderCollapsed) {
             if (currentScrollY <= mSnappedScrolledY) {
                 if (canSnapAt(currentScrollY)) {
                     mSnappedScrolledY = currentScrollY;
                 }
             } else {
-                mHeaderHidden = false;
+                mHeaderCollapsed = false;
             }
             mTranslationY = currentScrollY;
-        } else if (!mHeaderHidden) {
+        } else if (!mHeaderCollapsed) {
             mTranslationY = currentScrollY - mSnappedScrolledY - mMaxTranslation;
 
             // update state vars
@@ -178,7 +168,7 @@
                 mTranslationY = 0;
                 mSnappedScrolledY = currentScrollY - mMaxTranslation;
             } else if (mTranslationY <= -mMaxTranslation) { // hide or stay hidden
-                mHeaderHidden = true;
+                mHeaderCollapsed = true;
                 mSnappedScrolledY = currentScrollY;
             }
         }
@@ -195,7 +185,7 @@
             mPredictionRow.setTranslationY(uncappedTranslationY);
         }
         mTabLayout.setTranslationY(mTranslationY);
-        mDivider.setTranslationY(mTopOnlyMode ? uncappedTranslationY : mTranslationY);
+        mDivider.setTranslationY(mTabsHidden ? uncappedTranslationY : mTranslationY);
         mClip.top = mMaxTranslation + mTranslationY;
         // clipping on a draw might cause additional redraw
         mMainRV.setClipBounds(mClip);
@@ -210,16 +200,14 @@
         mAnimator.addUpdateListener(this);
         mAnimator.setDuration(150);
         mAnimator.start();
-        mHeaderHidden = !expand;
-        mSnappedScrolledY = expand ? getCurrentScroll() - mMaxTranslation : getCurrentScroll();
+        mHeaderCollapsed = !expand;
+        mSnappedScrolledY = expand
+                ? mCurrentRV.getCurrentScrollY() - mMaxTranslation
+                : mCurrentRV.getCurrentScrollY();
     }
 
     public boolean isExpanded() {
-        return !mHeaderHidden;
-    }
-
-    private int getCurrentScroll() {
-        return mMainRVActive ? mMainScrolledY : mWorkScrolledY;
+        return !mHeaderCollapsed;
     }
 
     @Override
@@ -228,6 +216,36 @@
         apply();
     }
 
+    @Override
+    public boolean onInterceptTouchEvent(MotionEvent ev) {
+        calcOffset(mTempOffset);
+        ev.offsetLocation(mTempOffset.x, mTempOffset.y);
+        mForwardToRecyclerView = mCurrentRV.onInterceptTouchEvent(ev);
+        ev.offsetLocation(-mTempOffset.x, -mTempOffset.y);
+        return mForwardToRecyclerView || super.onInterceptTouchEvent(ev);
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        if (mForwardToRecyclerView) {
+            // take this view's and parent view's (view pager) location into account
+            calcOffset(mTempOffset);
+            event.offsetLocation(mTempOffset.x, mTempOffset.y);
+            try {
+                return mCurrentRV.onTouchEvent(event);
+            } finally {
+                event.offsetLocation(-mTempOffset.x, -mTempOffset.y);
+            }
+        } else {
+            return super.onTouchEvent(event);
+        }
+    }
+
+    private void calcOffset(Point p) {
+        p.x = getLeft() - mCurrentRV.getLeft() - mParent.getLeft();
+        p.y = getTop() - mCurrentRV.getTop() - mParent.getTop();
+    }
+
 }
 
 
diff --git a/src/com/android/launcher3/allapps/PredictionRowView.java b/src/com/android/launcher3/allapps/PredictionRowView.java
index ea91770..30c30c8 100644
--- a/src/com/android/launcher3/allapps/PredictionRowView.java
+++ b/src/com/android/launcher3/allapps/PredictionRowView.java
@@ -26,6 +26,7 @@
 
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.BubbleTextView;
+import com.android.launcher3.Launcher;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.ComponentKeyMapper;
@@ -57,11 +58,28 @@
         setOrientation(LinearLayout.HORIZONTAL);
     }
 
-    public void setup(AllAppsGridAdapter adapter,
-            HashMap<ComponentKey, AppInfo> componentToAppMap, int numPredictedAppsPerRow) {
+    public void setup(AllAppsGridAdapter adapter, HashMap<ComponentKey, AppInfo> componentToAppMap,
+                      int numPredictedAppsPerRow) {
         mAdapter = adapter;
         mComponentToAppMap = componentToAppMap;
         mNumPredictedAppsPerRow = numPredictedAppsPerRow;
+        setVisibility(mPredictedAppComponents.isEmpty() ? View.GONE : View.VISIBLE);
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(getExpectedHeight(),
+                MeasureSpec.EXACTLY));
+    }
+
+    public int getExpectedHeight() {
+        int height = 0;
+        if (!mPredictedAppComponents.isEmpty()) {
+            height += Launcher.getLauncher(getContext())
+                    .getDeviceProfile().allAppsCellHeightPx;
+            height += getPaddingTop() + getPaddingBottom();
+        }
+        return height;
     }
 
     /**
diff --git a/src/com/android/launcher3/anim/AnimatorSetBuilder.java b/src/com/android/launcher3/anim/AnimatorSetBuilder.java
new file mode 100644
index 0000000..0e44b73
--- /dev/null
+++ b/src/com/android/launcher3/anim/AnimatorSetBuilder.java
@@ -0,0 +1,43 @@
+/*
+ * 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.anim;
+
+import android.animation.Animator;
+import android.animation.AnimatorSet;
+
+import com.android.launcher3.LauncherAnimUtils;
+
+import java.util.ArrayList;
+
+/**
+ * Utility class for building animator set
+ */
+public class AnimatorSetBuilder {
+
+    protected final ArrayList<Animator> mAnims = new ArrayList<>();
+
+    public void startTag(Object obj) { }
+
+    public void play(Animator anim) {
+        mAnims.add(anim);
+    }
+
+    public AnimatorSet build() {
+        AnimatorSet anim = LauncherAnimUtils.createAnimatorSet();
+        anim.playTogether(mAnims);
+        return anim;
+    }
+}
diff --git a/src/com/android/launcher3/config/BaseFlags.java b/src/com/android/launcher3/config/BaseFlags.java
index 7cf3da0..0d92d45 100644
--- a/src/com/android/launcher3/config/BaseFlags.java
+++ b/src/com/android/launcher3/config/BaseFlags.java
@@ -60,7 +60,7 @@
     public static final boolean GO_DISABLE_WIDGETS = false;
 
     // When enabled shows a work profile tab in all apps
-    public static final boolean ALL_APPS_TABS_ENABLED = false;
+    public static final boolean ALL_APPS_TABS_ENABLED = true;
     // When enabled prediction row is rendered as it's own custom view
-    public static final boolean ALL_APPS_PREDICTION_ROW_VIEW = false;
+    public static final boolean ALL_APPS_PREDICTION_ROW_VIEW = true;
 }
diff --git a/src/com/android/launcher3/views/RecyclerViewFastScroller.java b/src/com/android/launcher3/views/RecyclerViewFastScroller.java
index b36a0ff..fc121d3 100644
--- a/src/com/android/launcher3/views/RecyclerViewFastScroller.java
+++ b/src/com/android/launcher3/views/RecyclerViewFastScroller.java
@@ -322,7 +322,7 @@
      * Returns whether the specified point is inside the thumb bounds.
      */
     private boolean isNearThumb(int x, int y) {
-        int offset = y - mRv.getScrollBarTop() - mThumbOffsetY;
+        int offset = y - mThumbOffsetY;
 
         return x >= 0 && x < getWidth() && offset >= 0 && offset <= mThumbHeight;
     }
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/OverviewPanel.java b/src_ui_overrides/com/android/launcher3/uioverrides/OverviewPanel.java
index 3ce1014..1ba8cd6 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/OverviewPanel.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/OverviewPanel.java
@@ -17,7 +17,6 @@
 
 import static com.android.launcher3.WorkspaceStateTransitionAnimation.NO_ANIM_PROPERTY_SETTER;
 
-import android.animation.AnimatorSet;
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Resources;
@@ -38,6 +37,7 @@
 import com.android.launcher3.WorkspaceStateTransitionAnimation.AnimatedPropertySetter;
 import com.android.launcher3.WorkspaceStateTransitionAnimation.PropertySetter;
 import com.android.launcher3.anim.AnimationLayerSet;
+import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ControlType;
 import com.android.launcher3.widget.WidgetsFullSheet;
@@ -169,8 +169,8 @@
 
     @Override
     public void setStateWithAnimation(LauncherState toState, AnimationLayerSet layerViews,
-            AnimatorSet anim, AnimationConfig config) {
-        setState(toState, new AnimatedPropertySetter(config.duration, layerViews, anim));
+            AnimatorSetBuilder builder, AnimationConfig config) {
+        setState(toState, new AnimatedPropertySetter(config.duration, layerViews, builder));
     }
 
     private void setState(LauncherState state, PropertySetter setter) {