Merge "Adding a DB update path to handle the QSB position change" into ub-launcher3-calgary
diff --git a/res/drawable/ic_allapps_caret.xml b/res/drawable/ic_allapps_caret.xml
new file mode 100644
index 0000000..34d1882
--- /dev/null
+++ b/res/drawable/ic_allapps_caret.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2016 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:height="24dp"
+    android:viewportHeight="48.0"
+    android:viewportWidth="48.0"
+    android:width="24dp" >
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M14.83,30.83L24,21.66l9.17,9.17L36,28 24,16 12,28z"/>
+</vector>
diff --git a/res/layout-land/launcher.xml b/res/layout-land/launcher.xml
index d193e2f..8ebc303 100644
--- a/res/layout-land/launcher.xml
+++ b/res/layout-land/launcher.xml
@@ -53,6 +53,12 @@
             android:id="@+id/overview_panel"
             android:visibility="gone" />
 
+        <com.android.launcher3.pageindicators.PageIndicatorCaretLandscape
+            android:id="@+id/page_indicator"
+            android:layout_width="48dp"
+            android:layout_height="@dimen/dynamic_grid_page_indicator_height"
+            android:layout_gravity="bottom|left"/>
+
         <include layout="@layout/widgets_view"
             android:id="@+id/widgets_view"
             android:layout_width="match_parent"
diff --git a/res/layout-port/launcher.xml b/res/layout-port/launcher.xml
index 527ed54..6b5bf63 100644
--- a/res/layout-port/launcher.xml
+++ b/res/layout-port/launcher.xml
@@ -52,7 +52,7 @@
 
         <!-- Keep these behind the workspace so that they are not visible when
              we go into AllApps -->
-        <com.android.launcher3.pageindicators.PageIndicatorLine
+        <com.android.launcher3.pageindicators.PageIndicatorLineCaret
             android:id="@+id/page_indicator"
             android:layout_width="match_parent"
             android:layout_height="@dimen/dynamic_grid_page_indicator_height" />
@@ -71,7 +71,8 @@
             android:id="@+id/apps_view"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            android:visibility="invisible" />
+            android:visibility="invisible"
+            launcher:layout_ignoreInsets="true" />
     </com.android.launcher3.dragndrop.DragLayer>
 
 </com.android.launcher3.LauncherRootView>
diff --git a/res/layout-sw720dp/launcher.xml b/res/layout-sw720dp/launcher.xml
index 184e688..33ad323 100644
--- a/res/layout-sw720dp/launcher.xml
+++ b/res/layout-sw720dp/launcher.xml
@@ -55,7 +55,7 @@
 
         <!-- Keep these behind the workspace so that they are not visible when
              we go into AllApps -->
-        <com.android.launcher3.pageindicators.PageIndicatorLine
+        <com.android.launcher3.pageindicators.PageIndicatorLineCaret
             android:id="@+id/page_indicator"
             android:layout_width="match_parent"
             android:layout_height="@dimen/dynamic_grid_page_indicator_height" />
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 64868f2..cda8c05 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -17,7 +17,9 @@
 <resources>
 <!-- Dynamic Grid -->
     <dimen name="dynamic_grid_edge_margin">6dp</dimen>
-    <dimen name="dynamic_grid_page_indicator_height">1dp</dimen>
+    <dimen name="dynamic_grid_page_indicator_height">24dp</dimen>
+    <dimen name="dynamic_grid_page_indicator_line_height">1dp</dimen>
+    <dimen name="dynamic_grid_page_indicator_extra_touch_height">12dp</dimen>
     <dimen name="dynamic_grid_icon_drawable_padding">4dp</dimen>
     <dimen name="dynamic_grid_workspace_page_spacing">8dp</dimen>
     <dimen name="dynamic_grid_overview_min_icon_zone_height">80dp</dimen>
diff --git a/src/com/android/launcher3/BaseContainerView.java b/src/com/android/launcher3/BaseContainerView.java
index a9ef43d..7c7cb0b 100644
--- a/src/com/android/launcher3/BaseContainerView.java
+++ b/src/com/android/launcher3/BaseContainerView.java
@@ -51,7 +51,9 @@
         super(context, attrs, defStyleAttr);
 
         int width = ((Launcher) context).getDeviceProfile().availableWidthPx;
-        if (FeatureFlags.LAUNCHER3_ALL_APPS_PULL_UP && (this instanceof AllAppsContainerView)) {
+        if (FeatureFlags.LAUNCHER3_ALL_APPS_PULL_UP &&
+                this instanceof AllAppsContainerView &&
+                !((Launcher) context).getDeviceProfile().isLandscape) {
             mHorizontalPadding = 0;
         } else {
             mHorizontalPadding = DeviceProfile.getContainerPadding(context, width);
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 4a550ed..86f22d5 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -457,17 +457,14 @@
         // Layout the page indicators
         View pageIndicator = launcher.findViewById(R.id.page_indicator);
         if (pageIndicator != null) {
-            if (hasVerticalBarLayout) {
-                // Hide the page indicators when we have vertical search/hotseat
-                pageIndicator.setVisibility(View.GONE);
-            } else {
+            lp = (FrameLayout.LayoutParams) pageIndicator.getLayoutParams();
+            if (!hasVerticalBarLayout) {
                 // Put the page indicators above the hotseat
-                lp = (FrameLayout.LayoutParams) pageIndicator.getLayoutParams();
                 lp.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
                 lp.width = LayoutParams.WRAP_CONTENT;
                 lp.bottomMargin = hotseatBarHeightPx;
-                pageIndicator.setLayoutParams(lp);
             }
+            pageIndicator.setLayoutParams(lp);
         }
 
         // Layout the Overview Mode
diff --git a/src/com/android/launcher3/InsettableFrameLayout.java b/src/com/android/launcher3/InsettableFrameLayout.java
index 61edc0f..db4d855 100644
--- a/src/com/android/launcher3/InsettableFrameLayout.java
+++ b/src/com/android/launcher3/InsettableFrameLayout.java
@@ -18,6 +18,10 @@
     @ViewDebug.ExportedProperty(category = "launcher")
     protected Rect mInsets = new Rect();
 
+    public Rect getInsets() {
+        return mInsets;
+    }
+
     public InsettableFrameLayout(Context context, AttributeSet attrs) {
         super(context, attrs);
         setOnHierarchyChangeListener(this);
@@ -34,9 +38,6 @@
             lp.rightMargin += (newInsets.right - oldInsets.right);
             lp.bottomMargin += (newInsets.bottom - oldInsets.bottom);
         }
-        if (FeatureFlags.LAUNCHER3_ALL_APPS_PULL_UP && child instanceof AllAppsContainerView) {
-            lp.setMargins(0, 0, 0, lp.bottomMargin);
-        }
         child.setLayoutParams(lp);
     }
 
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 705cb58..c1c41a8 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -113,7 +113,7 @@
 import com.android.launcher3.logging.LoggerUtils;
 import com.android.launcher3.logging.UserEventDispatcher;
 import com.android.launcher3.model.WidgetsModel;
-import com.android.launcher3.pageindicators.PageIndicatorLine;
+import com.android.launcher3.pageindicators.PageIndicator;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.PackageManagerHelper;
@@ -233,7 +233,7 @@
 
     @Thunk Workspace mWorkspace;
     private View mLauncherView;
-    private PageIndicatorLine mPageIndicator;
+    private PageIndicator mPageIndicator;
     @Thunk DragLayer mDragLayer;
     private DragController mDragController;
 
@@ -1346,7 +1346,7 @@
         mFocusHandler = mDragLayer.getFocusIndicatorHelper();
 
         mWorkspace = (Workspace) mDragLayer.findViewById(R.id.workspace);
-        mPageIndicator = (PageIndicatorLine) mDragLayer.findViewById(R.id.page_indicator);
+        mPageIndicator = (PageIndicator) mDragLayer.findViewById(R.id.page_indicator);
 
         mLauncherView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                 | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
@@ -2491,7 +2491,7 @@
             if (v instanceof FolderIcon) {
                 onClickFolderIcon(v);
             }
-        } else if (v == mAllAppsButton) {
+        } else if (v instanceof PageIndicator || v == mAllAppsButton) {
             onClickAllAppsButton(v);
         } else if (tag instanceof AppInfo) {
             startAppShortcutOrInfoActivity(v);
@@ -3447,7 +3447,7 @@
      * Updates the set of predicted apps if it hasn't been updated since the last time Launcher was
      * resumed.
      */
-    private void tryAndUpdatePredictedApps() {
+    public void tryAndUpdatePredictedApps() {
         if (mLauncherCallbacks != null) {
             List<ComponentKey> apps = mLauncherCallbacks.getPredictedApps();
             if (apps != null) {
diff --git a/src/com/android/launcher3/LauncherStateTransitionAnimation.java b/src/com/android/launcher3/LauncherStateTransitionAnimation.java
index d62c629..bdd026d 100644
--- a/src/com/android/launcher3/LauncherStateTransitionAnimation.java
+++ b/src/com/android/launcher3/LauncherStateTransitionAnimation.java
@@ -249,10 +249,9 @@
         cancelAnimation();
 
         final View contentView = toView.getContentView();
-
+        playCommonTransitionAnimations(toWorkspaceState, fromView, toView,
+                animated, initialized, animation, revealDuration, layerViews);
         if (!animated || !initialized) {
-            playCommonTransitionAnimations(toWorkspaceState, fromView, toView,
-                    animated, initialized, animation, revealDuration, layerViews);
 
             toView.setTranslationX(0.0f);
             toView.setTranslationY(0.0f);
@@ -276,9 +275,6 @@
             return null;
         }
         if (animType == CIRCULAR_REVEAL) {
-            playCommonTransitionAnimations(toWorkspaceState, fromView, toView,
-                    animated, initialized, animation, revealDuration, layerViews);
-
             // Setup the reveal view animation
             final View revealView = toView.getRevealView();
 
@@ -425,8 +421,6 @@
                   }
             });
             mAllAppsController.animateToAllApps(animation, revealDuration);
-            playCommonTransitionAnimations(toWorkspaceState, fromView, toView,
-                    animated, initialized, animation, revealDuration, layerViews);
 
             dispatchOnLauncherTransitionPrepare(fromView, animated, false);
             dispatchOnLauncherTransitionPrepare(toView, animated, false);
@@ -675,9 +669,9 @@
 
         boolean multiplePagesVisible = toWorkspaceState.hasMultipleVisiblePages;
 
+        playCommonTransitionAnimations(toWorkspaceState, fromView, toView,
+                animated, initialized, animation, revealDuration, layerViews);
         if (!animated || !initialized) {
-            playCommonTransitionAnimations(toWorkspaceState, fromView, toView,
-                    animated, initialized, animation, revealDuration, layerViews);
             if (FeatureFlags.LAUNCHER3_ALL_APPS_PULL_UP) {
                 mAllAppsController.finishPullDown();
             }
@@ -694,12 +688,9 @@
             if (onCompleteRunnable != null) {
                 onCompleteRunnable.run();
             }
-
             return null;
         }
         if (animType == CIRCULAR_REVEAL) {
-            playCommonTransitionAnimations(toWorkspaceState, fromView, toView,
-                    animated, initialized, animation, revealDuration, layerViews);
             final View revealView = fromView.getRevealView();
             final View contentView = fromView.getContentView();
 
@@ -880,8 +871,6 @@
 
             });
             mAllAppsController.animateToWorkspace(animation, revealDuration);
-            playCommonTransitionAnimations(toWorkspaceState, fromView, toView,
-                    animated, initialized, animation, revealDuration, layerViews);
 
             // Dispatch the prepare transition signal
             dispatchOnLauncherTransitionPrepare(fromView, animated, false);
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 60a1c9d..ca46d74 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -75,7 +75,7 @@
 import com.android.launcher3.folder.Folder;
 import com.android.launcher3.folder.FolderIcon;
 import com.android.launcher3.logging.UserEventDispatcher;
-import com.android.launcher3.pageindicators.PageIndicatorLine;
+import com.android.launcher3.pageindicators.PageIndicator;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
 import com.android.launcher3.util.LongArrayMap;
@@ -2100,9 +2100,9 @@
 
     @Override
     public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) {
-        if (mPageIndicator instanceof PageIndicatorLine) {
+        if (mPageIndicator instanceof PageIndicator) {
             boolean isNewStateSpringLoaded = mState == State.SPRING_LOADED;
-            ((PageIndicatorLine) mPageIndicator).setShouldAutoHide(!isNewStateSpringLoaded);
+            mPageIndicator.setShouldAutoHide(!isNewStateSpringLoaded);
             if (isNewStateSpringLoaded) {
                 // Show the page indicator at the same time as the rest of the transition.
                 showPageIndicatorAtCurrentScroll();
diff --git a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
index 0f437c1..d59058b 100644
--- a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
+++ b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
@@ -490,7 +490,8 @@
 
         final DragLayer dragLayer = mLauncher.getDragLayer();
         final float startAlpha = dragLayer.getBackgroundAlpha();
-        float finalAlpha = states.stateIsNormal ? 0 : mWorkspaceScrimAlpha;
+        float finalAlpha = states.stateIsNormal || states.stateIsNormalHidden ?
+                0 : mWorkspaceScrimAlpha;
 
         if (finalAlpha != startAlpha) {
             if (animated) {
diff --git a/src/com/android/launcher3/allapps/AllAppsContainerView.java b/src/com/android/launcher3/allapps/AllAppsContainerView.java
index a74c4c5..b5dc0c0 100644
--- a/src/com/android/launcher3/allapps/AllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsContainerView.java
@@ -185,7 +185,8 @@
         mApps.setAdapter(mAdapter);
         mLayoutManager = mAdapter.getLayoutManager();
         mItemDecoration = mAdapter.getItemDecoration();
-        if (FeatureFlags.LAUNCHER3_ALL_APPS_PULL_UP) {
+        DeviceProfile grid = mLauncher.getDeviceProfile();
+        if (FeatureFlags.LAUNCHER3_ALL_APPS_PULL_UP && !grid.isLandscape) {
             mRecyclerViewTopBottomPadding = 0;
             setPadding(0, 0, 0, 0);
         } else {
@@ -350,7 +351,12 @@
         mAppsRecyclerView.setPremeasuredIconHeights(predIcon.getMeasuredHeight(),
                 icon.getMeasuredHeight());
 
-        updatePaddingsAndMargins();
+        // TODO(hyunyoungs): clean up setting the content and the reveal view.
+        if (FeatureFlags.LAUNCHER3_ALL_APPS_PULL_UP) {
+            getContentView().setBackground(null);
+            getRevealView().setVisibility(View.VISIBLE);
+            getRevealView().setAlpha(AllAppsTransitionController.ALL_APPS_FINAL_ALPHA);
+        }
     }
 
     @Override
@@ -358,6 +364,7 @@
 
     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        updatePaddingsAndMargins();
         mContentBounds.set(mHorizontalPadding, 0,
                 MeasureSpec.getSize(widthMeasureSpec) - mHorizontalPadding,
                 MeasureSpec.getSize(heightMeasureSpec));
@@ -366,6 +373,7 @@
         int availableWidth = (!mContentBounds.isEmpty() ? mContentBounds.width() :
                 MeasureSpec.getSize(widthMeasureSpec))
                 - 2 * mAppsRecyclerView.getMaxScrollbarWidth();
+        grid.updateAppsViewNumCols(getResources(), availableWidth);
         if (FeatureFlags.LAUNCHER3_ALL_APPS_PULL_UP) {
             if (mNumAppsPerRow != grid.inv.numColumns ||
                     mNumPredictedAppsPerRow != grid.inv.numColumns) {
@@ -378,6 +386,7 @@
                 if (mNumAppsPerRow > 0) {
                     int iconSize = availableWidth / mNumAppsPerRow;
                     int iconSpacing = (iconSize - grid.allAppsIconSizePx) / 2;
+                    mSearchInput.setPaddingRelative(iconSpacing, 0, iconSpacing, 0);
                 }
             }
             super.onMeasure(widthMeasureSpec, heightMeasureSpec);
@@ -450,23 +459,25 @@
         lp.leftMargin = bgPadding.left;
         lp.rightMargin = bgPadding.right;
 
+        DeviceProfile grid = mLauncher.getDeviceProfile();
         if (FeatureFlags.LAUNCHER3_ALL_APPS_PULL_UP) {
-            MarginLayoutParams mlp = (MarginLayoutParams) mAppsRecyclerView.getLayoutParams();
+            if (!grid.isLandscape) {
+                MarginLayoutParams mlp = (MarginLayoutParams) mAppsRecyclerView.getLayoutParams();
 
-            int navBarHeight = 84; /* replace with mInset.height() in dragLayer */
-            DeviceProfile grid = mLauncher.getDeviceProfile();
-            int height = navBarHeight + grid.hotseatCellHeightPx;
+                int navBarHeight = mLauncher.getDragLayer().getInsets().top;
+                int height = navBarHeight + grid.hotseatCellHeightPx;
 
-            mlp.topMargin = height;
-            mAppsRecyclerView.setLayoutParams(mlp);
+                mlp.topMargin = height;
+                mAppsRecyclerView.setLayoutParams(mlp);
 
-            LinearLayout.LayoutParams llp =
-                    (LinearLayout.LayoutParams) mSearchInput.getLayoutParams();
-            llp.topMargin = navBarHeight;
-            mSearchInput.setLayoutParams(llp);
+                LinearLayout.LayoutParams llp =
+                        (LinearLayout.LayoutParams) mSearchInput.getLayoutParams();
+                llp.topMargin = navBarHeight;
+                mSearchInput.setLayoutParams(llp);
 
-            lp.height = height;
-            mSearchContainer.setBackground(null);
+                lp.height = height;
+            }
+            mSearchContainer.getBackground().setAlpha(0);
         }
         mSearchContainer.setLayoutParams(lp);
     }
diff --git a/src/com/android/launcher3/allapps/AllAppsTransitionController.java b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
index 7f047d5..c443b1e 100644
--- a/src/com/android/launcher3/allapps/AllAppsTransitionController.java
+++ b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
@@ -8,10 +8,13 @@
 import android.util.Log;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.animation.AccelerateDecelerateInterpolator;
 import android.view.animation.AccelerateInterpolator;
+import android.view.animation.DecelerateInterpolator;
 import android.view.animation.Interpolator;
 
 import com.android.launcher3.CellLayout;
+import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Hotseat;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherAnimUtils;
@@ -34,16 +37,21 @@
     private static final String TAG = "AllAppsTrans";
     private static final boolean DBG = false;
 
-     private final Interpolator mAccelInterpolator = new AccelerateInterpolator(1f);
+    private final Interpolator mAccelInterpolator = new AccelerateInterpolator(2f);
+    private final Interpolator mDecelInterpolator = new DecelerateInterpolator(1f);
+    private final Interpolator mAccelDecelInterpolator = new AccelerateDecelerateInterpolator();
 
     private static final float ANIMATION_DURATION = 2000;
-    private static final float FINAL_ALPHA = .65f;
+    public static final float ALL_APPS_FINAL_ALPHA = .8f;
+
+    private static final float PARALLAX_COEFFICIENT = .125f;
 
     private AllAppsContainerView mAppsView;
     private Workspace mWorkspace;
     private Hotseat mHotseat;
     private Drawable mHotseatBackground;
     private float mHotseatAlpha;
+    private float mStatusBarHeight;
 
     private final Launcher mLauncher;
     private final VerticalPullDetector mDetector;
@@ -56,12 +64,21 @@
 
     private static final float RECATCH_REJECTION_FRACTION = .0875f;
 
+    // Used in landscape.
+    private static final float BAZEL_PULL_UP_HEIGHT = 60;
+
     private long mAnimationDuration;
     private float mCurY;
 
     private AnimatorSet mCurrentAnimation;
     private boolean mNoIntercept;
 
+    private boolean mLightStatusBar;
+
+    // At the end of scroll settling, this class also sets the state of the launcher.
+    // If it's already set,do not call the #mLauncher.setXXX method.
+    private boolean mStateAlreadyChanged;
+
     public AllAppsTransitionController(Launcher launcher) {
         mLauncher = launcher;
         mDetector = new VerticalPullDetector(launcher);
@@ -78,6 +95,8 @@
             } else if (mLauncher.isAllAppsVisible() &&
                     !mAppsView.shouldContainerScroll(ev.getX(), ev.getY())) {
                 mNoIntercept = true;
+            } else if (!mLauncher.isAllAppsVisible() && !shouldPossiblyIntercept(ev)) {
+                mNoIntercept = true;
             } else {
                 mDetector.setDetectableScrollConditions(mLauncher.isAllAppsVisible() /* down */,
                         isInDisallowRecatchTopZone(), isInDisallowRecatchBottomZone());
@@ -90,6 +109,22 @@
         return mDetector.shouldIntercept();
     }
 
+    private boolean shouldPossiblyIntercept(MotionEvent ev) {
+        DeviceProfile grid = mLauncher.getDeviceProfile();
+        if (mDetector.isRestingState()) {
+            if (mLauncher.getDragLayer().isEventOverHotseat(ev) && !grid.isLandscape) {
+                return true;
+            }
+            if (ev.getY() > mLauncher.getDeviceProfile().heightPx - BAZEL_PULL_UP_HEIGHT &&
+                    grid.isLandscape) {
+                return true;
+            }
+            return false;
+        } else {
+            return true;
+        }
+    }
+
     @Override
     public boolean onTouchEvent(MotionEvent ev) {
         return mDetector.onTouchEvent(ev);
@@ -111,6 +146,7 @@
         mHotseat = mLauncher.getHotseat();
         mWorkspace = mLauncher.getWorkspace();
 
+        mStatusBarHeight = mLauncher.getDragLayer().getInsets().height();
         if (mHotseatBackground == null) {
             mHotseatBackground = mHotseat.getBackground();
             mHotseatAlpha = mHotseatBackground.getAlpha() / 255f;
@@ -119,6 +155,7 @@
 
     @Override
     public void onScrollStart(boolean start) {
+        init();
         cancelAnimation();
         mCurrentAnimation = LauncherAnimUtils.createAnimatorSet();
         preparePull(start);
@@ -133,18 +170,21 @@
         mHotseat.bringToFront();
         if (start) {
             if (!mLauncher.isAllAppsVisible()) {
+                mLauncher.tryAndUpdatePredictedApps();
                 mHotseat.setBackground(null);
                 mAppsView.setVisibility(View.VISIBLE);
                 mAppsView.getContentView().setVisibility(View.VISIBLE);
                 mAppsView.getContentView().setBackground(null);
                 mAppsView.getRevealView().setVisibility(View.VISIBLE);
                 mAppsView.getRevealView().setAlpha(mHotseatAlpha);
-                mAppsView.setSearchBarVisible(false);
 
-                if (mTranslation < 0) {
+                DeviceProfile grid= mLauncher.getDeviceProfile();
+                if (!grid.isLandscape) {
                     mTranslation = mHotseat.getTop();
-                    setProgress(mTranslation);
+                } else {
+                    mTranslation = mHotseat.getBottom();
                 }
+                setProgress(mTranslation);
             } else {
                 // TODO: get rid of this workaround to override state change by workspace transition
                 mWorkspace.onLauncherTransitionPrepare(mLauncher, false, false);
@@ -152,14 +192,16 @@
                         .getShortcutsAndWidgets();
                 child.setVisibility(View.VISIBLE);
                 child.setAlpha(1f);
-
-                mAppsView.setSearchBarVisible(false);
-                setLightStatusBar(false);
             }
         }
     }
 
-    private void setLightStatusBar(boolean enable) {
+    private void updateLightStatusBar(float progress) {
+        boolean enable = (progress < mStatusBarHeight / 2);
+        // Already set correctly
+        if (mLightStatusBar == enable) {
+            return;
+        }
         int systemUiFlags = mLauncher.getWindow().getDecorView().getSystemUiVisibility();
         if (enable) {
             mLauncher.getWindow().getDecorView().setSystemUiVisibility(systemUiFlags
@@ -170,6 +212,7 @@
                     & ~View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
 
         }
+        mLightStatusBar = enable;
     }
 
     @Override
@@ -187,17 +230,20 @@
      * @param progress y value of the border between hotseat and all apps
      */
     public void setProgress(float progress) {
+        updateLightStatusBar(progress);
         mProgressTransY = progress;
         float alpha = calcAlphaAllApps(progress);
         float workspaceHotseatAlpha = 1 - alpha;
 
-        mAppsView.getRevealView().setAlpha(Math.min(FINAL_ALPHA, Math.max(mHotseatAlpha, alpha)));
+        mAppsView.getRevealView().setAlpha(Math.min(ALL_APPS_FINAL_ALPHA, Math.max(mHotseatAlpha,
+                mDecelInterpolator.getInterpolation(alpha))));
         mAppsView.getContentView().setAlpha(alpha);
         mAppsView.setTranslationY(progress);
-        mWorkspace.setWorkspaceTranslation(View.TRANSLATION_Y, -mTranslation + progress,
+        mWorkspace.setWorkspaceTranslation(View.TRANSLATION_Y,
+                PARALLAX_COEFFICIENT *(-mTranslation + progress),
                 mAccelInterpolator.getInterpolation(workspaceHotseatAlpha));
-        mWorkspace.setHotseatTranslation(
-                View.TRANSLATION_Y, -mTranslation + progress, workspaceHotseatAlpha);
+        mWorkspace.setHotseatTranslation(View.TRANSLATION_Y, -mTranslation + progress,
+                mAccelInterpolator.getInterpolation(workspaceHotseatAlpha));
     }
 
     public float getProgress() {
@@ -217,26 +263,27 @@
         if (fling) {
             if (velocity < 0) {
                 calculateDuration(velocity, mAppsView.getTranslationY());
-                showAppsView(); // Flinging in UP direction
+                animateToAllApps(mCurrentAnimation, mAnimationDuration);
             } else {
                 calculateDuration(velocity, Math.abs(mTranslation - mAppsView.getTranslationY()));
-                showWorkspace(); // Flinging in DOWN direction
+                animateToWorkspace(mCurrentAnimation, mAnimationDuration);
             }
             // snap to top or bottom using the release velocity
         } else {
             if (mAppsView.getTranslationY() > mTranslation / 2) {
                 calculateDuration(velocity, Math.abs(mTranslation - mAppsView.getTranslationY()));
-                showWorkspace(); // Released in the bottom half
+                animateToWorkspace(mCurrentAnimation, mAnimationDuration);
             } else {
                 calculateDuration(velocity, Math.abs(mAppsView.getTranslationY()));
-                showAppsView(); // Released in the top half
+                animateToAllApps(mCurrentAnimation, mAnimationDuration);
             }
         }
+        mCurrentAnimation.start();
     }
 
     private void calculateDuration(float velocity, float disp) {
         // TODO: make these values constants after tuning.
-        float velocityDivisor = Math.max(1.5f, Math.abs(0.25f * velocity));
+        float velocityDivisor = Math.max(1.5f, Math.abs(0.5f * velocity));
         float travelDistance = Math.max(0.2f, disp / mTranslation);
         mAnimationDuration = (long) Math.max(100, ANIMATION_DURATION / velocityDivisor * travelDistance);
         if (DBG) {
@@ -244,35 +291,6 @@
         }
     }
 
-    /**
-     * Depending on the current state of the launcher, either just
-     * 1) animate
-     * 2) animate and do all the state updates.
-     */
-    private void showAppsView() {
-        if (mLauncher.isAllAppsVisible()) {
-            animateToAllApps(mCurrentAnimation, mAnimationDuration);
-            mCurrentAnimation.start();
-        } else {
-            mLauncher.showAppsView(true /* animated */, true /* resetListToTop */,
-                    true /* updatePredictedApps */, false /* focusSearchBar */);
-        }
-    }
-
-    /**
-     * Depending on the current state of the launcher, either just
-     * 1) animate
-     * 2) animate and do all the state updates.
-     */
-    private void showWorkspace() {
-        if (mLauncher.isAllAppsVisible()) {
-            mLauncher.showWorkspace(true /* animated */);
-        } else {
-            animateToWorkspace(mCurrentAnimation, mAnimationDuration);
-            mCurrentAnimation.start();
-        }
-    }
-
     public void animateToAllApps(AnimatorSet animationOut, long duration) {
         if ((mAppsView = mLauncher.getAppsView()) == null || animationOut == null){
             return;
@@ -280,6 +298,7 @@
         if (mDetector.isRestingState()) {
             preparePull(true);
             mAnimationDuration = duration;
+            mStateAlreadyChanged = true;
         }
         mCurY = mAppsView.getTranslationY();
         final float fromAllAppsTop = mAppsView.getTranslationY();
@@ -310,13 +329,6 @@
         mCurrentAnimation = animationOut;
     }
 
-    private void finishPullUp() {
-        mAppsView.setSearchBarVisible(true);
-        mHotseat.setVisibility(View.INVISIBLE);
-        setProgress(0f);
-        setLightStatusBar(true);
-    }
-
     public void animateToWorkspace(AnimatorSet animationOut, long duration) {
         if ((mAppsView = mLauncher.getAppsView()) == null || animationOut == null){
             return;
@@ -324,6 +336,7 @@
         if(mDetector.isRestingState()) {
             preparePull(true);
             mAnimationDuration = duration;
+            mStateAlreadyChanged = true;
         }
         final float fromAllAppsTop = mAppsView.getTranslationY();
         final float toAllAppsTop = mTranslation;
@@ -354,12 +367,28 @@
         mCurrentAnimation = animationOut;
     }
 
+    private void finishPullUp() {
+        mHotseat.setVisibility(View.INVISIBLE);
+        setProgress(0f);
+        if (!mStateAlreadyChanged) {
+            mLauncher.showAppsView(false /* animated */, true /* resetListToTop */,
+                    false /* updatePredictedApps */, false /* focusSearchBar */);
+        }
+        mStateAlreadyChanged = false;
+    }
+
     public void finishPullDown() {
+        if (mHotseat.getBackground() != null) {
+            return;
+        }
         mAppsView.setVisibility(View.INVISIBLE);
         mHotseat.setBackground(mHotseatBackground);
         mHotseat.setVisibility(View.VISIBLE);
         setProgress(mTranslation);
-        setLightStatusBar(false);
+        if (!mStateAlreadyChanged) {
+            mLauncher.showWorkspace(false);
+        }
+        mStateAlreadyChanged = false;
     }
 
     private void cancelAnimation() {
diff --git a/src/com/android/launcher3/allapps/VerticalPullDetector.java b/src/com/android/launcher3/allapps/VerticalPullDetector.java
index 7df63e0..9304aac 100644
--- a/src/com/android/launcher3/allapps/VerticalPullDetector.java
+++ b/src/com/android/launcher3/allapps/VerticalPullDetector.java
@@ -135,7 +135,7 @@
                 mDisplacementY = ev.getY() - mDownY;
                 mVelocity = computeVelocity(ev, mVelocity);
 
-                if (mState == State.SCROLLING && shouldRecatchScrollStart()){
+                if (mState == State.SCROLLING && Math.abs(mDisplacementY) > mTouchSlop ){
                     setState(State.DRAG);
                     reportScrollStart(true /* recatch */);
                 }
diff --git a/src/com/android/launcher3/dragndrop/DragLayer.java b/src/com/android/launcher3/dragndrop/DragLayer.java
index 5d212d8..c62353d 100644
--- a/src/com/android/launcher3/dragndrop/DragLayer.java
+++ b/src/com/android/launcher3/dragndrop/DragLayer.java
@@ -187,6 +187,11 @@
         removeView(mOverlayView);
     }
 
+    public boolean isEventOverHotseat(MotionEvent ev) {
+        getDescendantRectRelativeToSelf(mLauncher.getHotseat(), mHitRect);
+        return mHitRect.contains((int) ev.getX(), (int) ev.getY());
+    }
+
     private boolean isEventOverFolderTextRegion(Folder folder, MotionEvent ev) {
         getDescendantRectRelativeToSelf(folder.getEditTextRegion(), mHitRect);
         return mHitRect.contains((int) ev.getX(), (int) ev.getY());
diff --git a/src/com/android/launcher3/pageindicators/PageIndicator.java b/src/com/android/launcher3/pageindicators/PageIndicator.java
index 7c59495..2209bb8 100644
--- a/src/com/android/launcher3/pageindicators/PageIndicator.java
+++ b/src/com/android/launcher3/pageindicators/PageIndicator.java
@@ -1,9 +1,26 @@
+/*
+ * Copyright (C) 2016 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.pageindicators;
 
 import android.content.Context;
 import android.util.AttributeSet;
 import android.view.View;
 
+import com.android.launcher3.dynamicui.ExtractedColors;
+
 /**
  * Base class for a page indicator.
  */
@@ -15,9 +32,9 @@
         super(context, attrs, defStyleAttr);
     }
 
-    public abstract void setScroll(int currentScroll, int totalScroll);
+    public void setScroll(int currentScroll, int totalScroll) {}
 
-    public abstract void setActiveMarker(int activePage);
+    public void setActiveMarker(int activePage) {}
 
     public void addMarker() {
         mNumPages++;
@@ -33,5 +50,9 @@
         onPageCountChanged();
     }
 
-    protected abstract void onPageCountChanged();
+    protected void onPageCountChanged() { }
+
+    public void setShouldAutoHide(boolean shouldAutoHide) {}
+
+    public void updateColor(ExtractedColors extractedColors) {}
 }
diff --git a/src/com/android/launcher3/pageindicators/PageIndicatorCaretLandscape.java b/src/com/android/launcher3/pageindicators/PageIndicatorCaretLandscape.java
new file mode 100644
index 0000000..0f9145d
--- /dev/null
+++ b/src/com/android/launcher3/pageindicators/PageIndicatorCaretLandscape.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2016 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.pageindicators;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.Canvas;
+import android.graphics.drawable.Drawable;
+import android.util.AttributeSet;
+
+import com.android.launcher3.Launcher;
+import com.android.launcher3.R;
+import com.android.launcher3.dynamicui.ExtractedColors;
+
+/**
+ * Simply draws the caret drawable in the center. Used for the landscape layout.
+ */
+public class PageIndicatorCaretLandscape extends PageIndicator {
+    // all apps pull up handle drawable.
+    private final Drawable caretDrawable;
+
+    public PageIndicatorCaretLandscape(Context context) {
+        this(context, null);
+    }
+
+    public PageIndicatorCaretLandscape(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public PageIndicatorCaretLandscape(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+
+        Resources res = context.getResources();
+        caretDrawable = res.getDrawable(R.drawable.ic_allapps_caret);
+        Launcher l = (Launcher) context;
+        setOnTouchListener(l.getHapticFeedbackTouchListener());
+        setOnClickListener(l);
+        setOnFocusChangeListener(l.mFocusHandler);
+    }
+
+    @Override
+    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
+        super.onLayout(changed, left, top, right, bottom);
+        int size = bottom - top;
+        int l = (right - left) / 2 - size / 2;
+        caretDrawable.setBounds(l, 0, l + size, size);
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        caretDrawable.draw(canvas);
+    }
+}
diff --git a/src/com/android/launcher3/pageindicators/PageIndicatorLine.java b/src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java
similarity index 68%
rename from src/com/android/launcher3/pageindicators/PageIndicatorLine.java
rename to src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java
index aec708c..2c157b4 100644
--- a/src/com/android/launcher3/pageindicators/PageIndicatorLine.java
+++ b/src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java
@@ -5,17 +5,24 @@
 import android.animation.ObjectAnimator;
 import android.animation.ValueAnimator;
 import android.content.Context;
+import android.content.res.Resources;
 import android.graphics.Canvas;
 import android.graphics.Color;
 import android.graphics.Paint;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
 import android.os.Handler;
 import android.os.Looper;
 import android.support.v4.graphics.ColorUtils;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.util.Property;
+import android.view.TouchDelegate;
+import android.view.View;
 import android.view.ViewConfiguration;
 
+import com.android.launcher3.Launcher;
+import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.dynamicui.ExtractedColors;
 
@@ -24,9 +31,11 @@
  *
  * The fraction is 1 / number of pages and the position is based on the progress of the page scroll.
  */
-public class PageIndicatorLine extends PageIndicator {
+public class PageIndicatorLineCaret extends PageIndicator {
     private static final String TAG = "PageIndicatorLine";
 
+    private static final int[] sTempCoords = new int[2];
+
     private static final int LINE_ANIMATE_DURATION = ViewConfiguration.getScrollBarFadeDuration();
     private static final int LINE_FADE_DELAY = ViewConfiguration.getScrollDefaultDelay();
     public static final int WHITE_ALPHA = (int) (0.70f * 255);
@@ -51,44 +60,50 @@
     private int mCurrentScroll;
     private int mTotalScroll;
     private Paint mLinePaint;
+    private Launcher mLauncher;
+    // all apps pull up handle drawable.
+    private final Drawable caretDrawable;
+    private final int mLineHeight;
+    private final Rect mTouchHitRect = new Rect();
+    private final int mTouchExtensionHeight;
 
-    private static final Property<PageIndicatorLine, Integer> PAINT_ALPHA
-            = new Property<PageIndicatorLine, Integer>(Integer.class, "paint_alpha") {
+    private static final Property<PageIndicatorLineCaret, Integer> PAINT_ALPHA
+            = new Property<PageIndicatorLineCaret, Integer>(Integer.class, "paint_alpha") {
         @Override
-        public Integer get(PageIndicatorLine obj) {
+        public Integer get(PageIndicatorLineCaret obj) {
             return obj.mLinePaint.getAlpha();
         }
 
         @Override
-        public void set(PageIndicatorLine obj, Integer alpha) {
+        public void set(PageIndicatorLineCaret obj, Integer alpha) {
             obj.mLinePaint.setAlpha(alpha);
             obj.invalidate();
         }
     };
 
-    private static final Property<PageIndicatorLine, Float> NUM_PAGES
-            = new Property<PageIndicatorLine, Float>(Float.class, "num_pages") {
+    private static final Property<PageIndicatorLineCaret, Float> NUM_PAGES
+            = new Property<PageIndicatorLineCaret, Float>(Float.class, "num_pages") {
         @Override
-        public Float get(PageIndicatorLine obj) {
+        public Float get(PageIndicatorLineCaret obj) {
             return obj.mNumPagesFloat;
         }
 
         @Override
-        public void set(PageIndicatorLine obj, Float numPages) {
+        public void set(PageIndicatorLineCaret obj, Float numPages) {
             obj.mNumPagesFloat = numPages;
             obj.invalidate();
         }
     };
 
-    private static final Property<PageIndicatorLine, Integer> TOTAL_SCROLL
-            = new Property<PageIndicatorLine, Integer>(Integer.class, "total_scroll") {
+    private static final Property<PageIndicatorLineCaret, Integer> TOTAL_SCROLL
+            = new Property<PageIndicatorLineCaret, Integer>(Integer.class, "total_scroll") {
         @Override
-        public Integer get(PageIndicatorLine obj) {
+        public Integer get(PageIndicatorLineCaret obj) {
             return obj.mTotalScroll;
         }
 
         @Override
-        public void set(PageIndicatorLine obj, Integer totalScroll) {
+        public void set(PageIndicatorLineCaret obj, Integer totalScroll) {
             obj.mTotalScroll = totalScroll;
             obj.invalidate();
         }
@@ -101,22 +116,50 @@
         }
     };
 
-    public PageIndicatorLine(Context context) {
+    public PageIndicatorLineCaret(Context context) {
         this(context, null);
     }
 
-    public PageIndicatorLine(Context context, AttributeSet attrs) {
+    public PageIndicatorLineCaret(Context context, AttributeSet attrs) {
         this(context, attrs, 0);
     }
 
-    public PageIndicatorLine(Context context, AttributeSet attrs, int defStyle) {
+    public PageIndicatorLineCaret(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
         mLinePaint = new Paint();
         mLinePaint.setAlpha(0);
+
+        mLauncher = (Launcher) context;
+        setOnTouchListener(mLauncher.getHapticFeedbackTouchListener());
+        setOnClickListener(mLauncher);
+        setOnFocusChangeListener(mLauncher.mFocusHandler);
+        Resources res = context.getResources();
+        caretDrawable = res.getDrawable(R.drawable.ic_allapps_caret);
+        mLineHeight = res.getDimensionPixelSize(R.dimen.dynamic_grid_page_indicator_line_height);
+        mTouchExtensionHeight = res.getDimensionPixelSize(
+                R.dimen.dynamic_grid_page_indicator_extra_touch_height);
+    }
+
+    @Override
+    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
+        super.onLayout(changed, left, top, right, bottom);
+        int size = bottom - top;
+        int l = (right - left) / 2 - size / 2;
+        caretDrawable.setBounds(l, 0, l+ size, size);
+
+        // The touch area is expanded below this view by #mTouchExtensionHeight
+        // which extends to the top of the hotseat.
+        View parent = mLauncher.getDragLayer();
+        sTempCoords[0] = sTempCoords[1] = 0;
+        Utilities.getDescendantCoordRelativeToAncestor(this, parent, sTempCoords, true);
+        mTouchHitRect.set(sTempCoords[0], sTempCoords[1], sTempCoords[0] + this.getWidth(),
+                sTempCoords[1] + getHeight() + mTouchExtensionHeight);
+        parent.setTouchDelegate(new TouchDelegate(mTouchHitRect, this));
     }
 
     @Override
     protected void onDraw(Canvas canvas) {
+        caretDrawable.draw(canvas);
         if (mTotalScroll == 0 || mNumPagesFloat == 0) {
             return;
         }
@@ -127,7 +170,8 @@
         int lineWidth = (int) (availableWidth / mNumPagesFloat);
         int lineLeft = (int) (progress * (availableWidth - lineWidth));
         int lineRight = lineLeft + lineWidth;
-        canvas.drawRect(lineLeft, 0, lineRight, canvas.getHeight(), mLinePaint);
+        canvas.drawRect(lineLeft, canvas.getHeight() + mLineHeight, lineRight, canvas.getHeight(),
+                mLinePaint);
     }
 
     @Override