diff --git a/Android.mk b/Android.mk
index 713d082..6cb40c5 100644
--- a/Android.mk
+++ b/Android.mk
@@ -31,6 +31,7 @@
 LOCAL_SRC_FILES := \
     $(call all-java-files-under, src) \
     $(call all-java-files-under, src_config) \
+    $(call all-java-files-under, src_flags) \
     $(call all-proto-files-under, protos)
 
 LOCAL_RESOURCE_DIR := \
diff --git a/build.gradle b/build.gradle
index 51ac5a1..d6dbbab 100644
--- a/build.gradle
+++ b/build.gradle
@@ -38,7 +38,7 @@
     sourceSets {
         main {
             res.srcDirs = ['res']
-            java.srcDirs = ['src', 'src_config']
+            java.srcDirs = ['src', 'src_flags']
             manifest.srcFile 'AndroidManifest-common.xml'
             proto.srcDirs 'protos/'
         }
@@ -90,6 +90,7 @@
                     remove java
                     javanano {
                         option "java_package=launcher_log.proto|com.android.launcher3.userevent.nano"
+                        option "java_package=launcher_dump.proto|com.android.launcher3.model.nano"
                         option "enum_style=java"
                     }
                 }
diff --git a/protos/launcher_dump.proto b/protos/launcher_dump.proto
new file mode 100644
index 0000000..dc8fbda
--- /dev/null
+++ b/protos/launcher_dump.proto
@@ -0,0 +1,75 @@
+/*
+ * 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.
+ */
+syntax = "proto2";
+
+option java_package = "com.android.launcher3.model";
+option java_outer_classname = "LauncherDumpProto";
+
+package model;
+
+message DumpTarget {
+  enum Type {
+    NONE = 0;
+    ITEM = 1;
+    CONTAINER = 2;
+  }
+
+  optional Type type = 1;
+  optional int32 page_id = 2;
+  optional int32 grid_x = 3;
+  optional int32 grid_y = 4;
+
+  // For container types only
+  optional ContainerType container_type = 5;
+
+  // For item types only
+  optional ItemType item_type = 6;
+
+  optional string package_name = 7; // All ItemTypes except UNKNOWN type
+  optional string component = 8;   // All ItemTypes except UNKNOWN type
+  optional string item_id = 9; // For Pinned Shortcuts and appWidgetId
+
+  optional int32 span_x = 10 [default = 1];// Used for ItemType.WIDGET
+  optional int32 span_y = 11 [default = 1];// Used for ItemType.WIDGET
+  optional UserType user_type = 12;
+}
+
+// Used to define what type of item a Target would represent.
+enum ItemType {
+  UNKNOWN_ITEMTYPE = 0;  // Launcher specific items
+  APP_ICON = 1; // Regular app icons
+  WIDGET = 2;   // Elements from AppWidgetManager
+  SHORTCUT = 3; // ShortcutManager
+}
+
+// Used to define what type of container a Target would represent.
+enum ContainerType {
+  UNKNOWN_CONTAINERTYPE = 0;
+  WORKSPACE = 1;
+  HOTSEAT = 2;
+  FOLDER = 3;
+}
+
+// Used to define what type of control a Target would represent.
+enum UserType {
+  DEFAULT = 0;
+  WORK = 1;
+}
+
+// Main message;
+message LauncherImpression {
+  repeated DumpTarget targets = 1;
+}
diff --git a/res/interpolator/folder_closing_interpolator.xml b/res/interpolator/folder_closing_interpolator.xml
new file mode 100644
index 0000000..e6e012e
--- /dev/null
+++ b/res/interpolator/folder_closing_interpolator.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 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.
+*/
+-->
+
+<pathInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
+    android:controlX1="0.8"
+    android:controlY1="0"
+    android:controlX2="0.8"
+    android:controlY2="1"/>
diff --git a/res/interpolator/folder_opening_interpolator.xml b/res/interpolator/folder_opening_interpolator.xml
new file mode 100644
index 0000000..b95d454
--- /dev/null
+++ b/res/interpolator/folder_opening_interpolator.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 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.
+*/
+-->
+
+<pathInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
+    android:controlX1="0.2"
+    android:controlY1="0"
+    android:controlX2="0"
+    android:controlY2="1"/>
diff --git a/res/interpolator/folder_preview_item_closing_interpolator.xml b/res/interpolator/folder_preview_item_closing_interpolator.xml
new file mode 100644
index 0000000..1d77081
--- /dev/null
+++ b/res/interpolator/folder_preview_item_closing_interpolator.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 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.
+*/
+-->
+
+<pathInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
+    android:controlX1="1"
+    android:controlY1="0"
+    android:controlX2="1"
+    android:controlY2="0"/>
diff --git a/res/interpolator/folder_preview_item_opening_interpolator.xml b/res/interpolator/folder_preview_item_opening_interpolator.xml
new file mode 100644
index 0000000..dcf0157
--- /dev/null
+++ b/res/interpolator/folder_preview_item_opening_interpolator.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 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.
+*/
+-->
+
+<pathInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
+    android:controlX1="0"
+    android:controlY1="1"
+    android:controlX2="0"
+    android:controlY2="1"/>
diff --git a/res/values-b+sr+Latn/strings.xml b/res/values-b+sr+Latn/strings.xml
index 8d16653..610dc10 100644
--- a/res/values-b+sr+Latn/strings.xml
+++ b/res/values-b+sr+Latn/strings.xml
@@ -33,10 +33,8 @@
     <string name="long_accessible_way_to_add" msgid="4289502106628154155">"Dvaput dodirnite i zadržite da biste izabrali vidžet ili koristite prilagođene radnje."</string>
     <string name="widget_dims_format" msgid="2370757736025621599">"%1$d×%2$d"</string>
     <string name="widget_accessible_dims_format" msgid="3640149169885301790">"širina od %1$d i visina od %2$d"</string>
-    <!-- no translation found for add_item_request_drag_hint (8662194377800507270) -->
-    <skip />
-    <!-- no translation found for place_automatically (1502491650329146581) -->
-    <skip />
+    <string name="add_item_request_drag_hint" msgid="8662194377800507270">"Dodirnite i zadržite da biste postavili na početni ekran"</string>
+    <string name="place_automatically" msgid="1502491650329146581">"Postavi automatski"</string>
     <string name="all_apps_search_bar_hint" msgid="7084713969757597256">"Pretražite aplikacije"</string>
     <string name="all_apps_loading_message" msgid="7557140873644765180">"Aplikacije se učitavaju..."</string>
     <string name="all_apps_no_search_results" msgid="6332185285860416787">"Nije pronađena nijedna aplikacija za „<xliff:g id="QUERY">%1$s</xliff:g>“"</string>
diff --git a/res/values-be-rBY/strings.xml b/res/values-be-rBY/strings.xml
index f1b3aee..4487dbf 100644
--- a/res/values-be-rBY/strings.xml
+++ b/res/values-be-rBY/strings.xml
@@ -33,10 +33,8 @@
     <string name="long_accessible_way_to_add" msgid="4289502106628154155">"Дакраніцеся двойчы і ўтрымлівайце, каб выбраць віджэт або выкарыстоўваць карыстальніцкія дзеянні."</string>
     <string name="widget_dims_format" msgid="2370757736025621599">"%1$d × %2$d"</string>
     <string name="widget_accessible_dims_format" msgid="3640149169885301790">"Шырына: %1$d, вышыня: %2$d"</string>
-    <!-- no translation found for add_item_request_drag_hint (8662194377800507270) -->
-    <skip />
-    <!-- no translation found for place_automatically (1502491650329146581) -->
-    <skip />
+    <string name="add_item_request_drag_hint" msgid="8662194377800507270">"Дакраніцеся і ўтрымлівайце, каб размясціць на галоўным экране"</string>
+    <string name="place_automatically" msgid="1502491650329146581">"Размясціць аўтаматычна"</string>
     <string name="all_apps_search_bar_hint" msgid="7084713969757597256">"Пошук у Праграмах"</string>
     <string name="all_apps_loading_message" msgid="7557140873644765180">"Ідзе загрузка праграм…"</string>
     <string name="all_apps_no_search_results" msgid="6332185285860416787">"Праграм, якія адпавядаюць запыту \"<xliff:g id="QUERY">%1$s</xliff:g>\", не знойдзена"</string>
diff --git a/res/values-bs-rBA/strings.xml b/res/values-bs-rBA/strings.xml
index 4a658d2..28d3499 100644
--- a/res/values-bs-rBA/strings.xml
+++ b/res/values-bs-rBA/strings.xml
@@ -33,10 +33,8 @@
     <string name="long_accessible_way_to_add" msgid="4289502106628154155">"Dvaput dodirnite &amp; i držite da biste uzeli vidžet ili koristite prilagođene radnje."</string>
     <string name="widget_dims_format" msgid="2370757736025621599">"%1$d × %2$d"</string>
     <string name="widget_accessible_dims_format" msgid="3640149169885301790">"Širina %1$d, visina %2$d"</string>
-    <!-- no translation found for add_item_request_drag_hint (8662194377800507270) -->
-    <skip />
-    <!-- no translation found for place_automatically (1502491650329146581) -->
-    <skip />
+    <string name="add_item_request_drag_hint" msgid="8662194377800507270">"Dodirnite i držite da postavite na početni ekran"</string>
+    <string name="place_automatically" msgid="1502491650329146581">"Postavi automatski"</string>
     <string name="all_apps_search_bar_hint" msgid="7084713969757597256">"Pretraži aplikacije"</string>
     <string name="all_apps_loading_message" msgid="7557140873644765180">"Aplikacije se učitavaju…"</string>
     <string name="all_apps_no_search_results" msgid="6332185285860416787">"Nije pronađena nijedna aplikacija koja odgovara upitu \"<xliff:g id="QUERY">%1$s</xliff:g>\""</string>
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index bad7018..f9a6742 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -40,6 +40,7 @@
 import com.android.launcher3.badge.BadgeInfo;
 import com.android.launcher3.badge.BadgeRenderer;
 import com.android.launcher3.folder.FolderIcon;
+import com.android.launcher3.folder.FolderIconPreviewVerifier;
 import com.android.launcher3.graphics.DrawableFactory;
 import com.android.launcher3.graphics.HolographicOutlineHelper;
 import com.android.launcher3.graphics.PreloadIconDrawable;
@@ -547,7 +548,9 @@
                 applyFromApplicationInfo((AppInfo) info);
             } else if (info instanceof ShortcutInfo) {
                 applyFromShortcutInfo((ShortcutInfo) info);
-                if ((info.rank < FolderIcon.NUM_ITEMS_IN_PREVIEW) && (info.container >= 0)) {
+                FolderIconPreviewVerifier verifier =
+                        new FolderIconPreviewVerifier(mLauncher.getDeviceProfile().inv);
+                if (verifier.isItemInPreview(info.rank) && (info.container >= 0)) {
                     View folderIcon =
                             mLauncher.getWorkspace().getHomescreenIconByItemId(info.container);
                     if (folderIcon != null) {
@@ -587,6 +590,10 @@
                 .isEmpty();
     }
 
+    public int getIconSize() {
+        return mIconSize;
+    }
+
     /**
      * Interface to be implemented by the grand parent to allow click shadow effect.
      */
diff --git a/src/com/android/launcher3/CellLayout.java b/src/com/android/launcher3/CellLayout.java
index 8179dad..70137aa 100644
--- a/src/com/android/launcher3/CellLayout.java
+++ b/src/com/android/launcher3/CellLayout.java
@@ -51,7 +51,7 @@
 import com.android.launcher3.accessibility.FolderAccessibilityHelper;
 import com.android.launcher3.accessibility.WorkspaceAccessibilityHelper;
 import com.android.launcher3.anim.PropertyListBuilder;
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.folder.FolderIcon;
 import com.android.launcher3.graphics.DragPreviewProvider;
 import com.android.launcher3.util.CellAndSpan;
@@ -568,7 +568,7 @@
         try {
             dispatchRestoreInstanceState(states);
         } catch (IllegalArgumentException ex) {
-            if (ProviderConfig.IS_DOGFOOD_BUILD) {
+            if (FeatureFlags.IS_DOGFOOD_BUILD) {
                 throw ex;
             }
             // Mismatched viewId / viewType preventing restore. Skip restore on production builds.
diff --git a/src/com/android/launcher3/DeferredHandler.java b/src/com/android/launcher3/DeferredHandler.java
deleted file mode 100644
index a43ab67..0000000
--- a/src/com/android/launcher3/DeferredHandler.java
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright (C) 2008 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;
-
-import android.os.Handler;
-import android.os.Looper;
-import android.os.Message;
-import android.os.MessageQueue;
-
-import com.android.launcher3.util.Thunk;
-
-import java.util.LinkedList;
-
-/**
- * Queue of things to run on a looper thread.  Items posted with {@link #post} will not
- * be actually enqued on the handler until after the last one has run, to keep from
- * starving the thread.
- *
- * This class is fifo.
- */
-public class DeferredHandler {
-    @Thunk LinkedList<Runnable> mQueue = new LinkedList<>();
-    private MessageQueue mMessageQueue = Looper.myQueue();
-    private Impl mHandler = new Impl();
-
-    @Thunk class Impl extends Handler implements MessageQueue.IdleHandler {
-        public void handleMessage(Message msg) {
-            Runnable r;
-            synchronized (mQueue) {
-                if (mQueue.size() == 0) {
-                    return;
-                }
-                r = mQueue.removeFirst();
-            }
-            r.run();
-            synchronized (mQueue) {
-                scheduleNextLocked();
-            }
-        }
-
-        public boolean queueIdle() {
-            handleMessage(null);
-            return false;
-        }
-    }
-
-    private class IdleRunnable implements Runnable {
-        Runnable mRunnable;
-
-        IdleRunnable(Runnable r) {
-            mRunnable = r;
-        }
-
-        public void run() {
-            mRunnable.run();
-        }
-    }
-
-    public DeferredHandler() {
-    }
-
-    /** Schedule runnable to run after everything that's on the queue right now. */
-    public void post(Runnable runnable) {
-        synchronized (mQueue) {
-            mQueue.add(runnable);
-            if (mQueue.size() == 1) {
-                scheduleNextLocked();
-            }
-        }
-    }
-
-    /** Schedule runnable to run when the queue goes idle. */
-    public void postIdle(final Runnable runnable) {
-        post(new IdleRunnable(runnable));
-    }
-
-    public void cancelAll() {
-        synchronized (mQueue) {
-            mQueue.clear();
-        }
-    }
-
-    /** Runs all queued Runnables from the calling thread. */
-    public void flush() {
-        LinkedList<Runnable> queue = new LinkedList<>();
-        synchronized (mQueue) {
-            queue.addAll(mQueue);
-            mQueue.clear();
-        }
-        for (Runnable r : queue) {
-            r.run();
-        }
-    }
-
-    void scheduleNextLocked() {
-        if (mQueue.size() > 0) {
-            Runnable peek = mQueue.getFirst();
-            if (peek instanceof IdleRunnable) {
-                mMessageQueue.addIdleHandler(mHandler);
-            } else {
-                mHandler.sendEmptyMessage(1);
-            }
-        }
-    }
-}
-
diff --git a/src/com/android/launcher3/FocusHelper.java b/src/com/android/launcher3/FocusHelper.java
index b36734b..fe7acda 100644
--- a/src/com/android/launcher3/FocusHelper.java
+++ b/src/com/android/launcher3/FocusHelper.java
@@ -22,7 +22,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.folder.Folder;
 import com.android.launcher3.folder.FolderPagedView;
 import com.android.launcher3.util.FocusLogic;
@@ -93,7 +93,7 @@
             }
 
             if (!(v.getParent() instanceof ShortcutAndWidgetContainer)) {
-                if (ProviderConfig.IS_DOGFOOD_BUILD) {
+                if (FeatureFlags.IS_DOGFOOD_BUILD) {
                     throw new IllegalStateException("Parent of the focused item is not supported.");
                 } else {
                     return false;
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index 8aeab87..146c2ee 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -28,7 +28,6 @@
 import android.view.WindowManager;
 
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.config.ProviderConfig;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.util.Thunk;
 
@@ -335,7 +334,7 @@
     }
 
     public int getAllAppsButtonRank() {
-        if (ProviderConfig.IS_DOGFOOD_BUILD && FeatureFlags.NO_ALL_APPS_ICON) {
+        if (FeatureFlags.IS_DOGFOOD_BUILD && FeatureFlags.NO_ALL_APPS_ICON) {
             throw new IllegalAccessError("Accessing all apps rank when all-apps is disabled");
         }
         return numHotseatIcons / 2;
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 5e08c2a..0a08597 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -91,7 +91,6 @@
 import com.android.launcher3.compat.PinItemRequestCompat;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.config.ProviderConfig;
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.dragndrop.DragOptions;
@@ -3387,7 +3386,7 @@
                     Object tag = v.getTag();
                     String desc = "Collision while binding workspace item: " + item
                             + ". Collides with " + tag;
-                    if (ProviderConfig.IS_DOGFOOD_BUILD) {
+                    if (FeatureFlags.IS_DOGFOOD_BUILD) {
                         throw (new RuntimeException(desc));
                     } else {
                         Log.d(TAG, desc);
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index 2e75579..f2d66fe 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -26,7 +26,7 @@
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.PackageInstallerCompat;
 import com.android.launcher3.compat.UserManagerCompat;
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.dynamicui.ExtractionUtils;
 import com.android.launcher3.model.GridSizeMigrationTask;
 import com.android.launcher3.util.ConfigMonitor;
@@ -38,7 +38,7 @@
 
 public class LauncherAppState {
 
-    public static final boolean PROFILE_STARTUP = ProviderConfig.IS_DOGFOOD_BUILD;
+    public static final boolean PROFILE_STARTUP = FeatureFlags.IS_DOGFOOD_BUILD;
 
     // We do not need any synchronization for this variable as its only written on UI thread.
     private static LauncherAppState INSTANCE;
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index dc668e6..35811d3 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -44,10 +44,11 @@
 import com.android.launcher3.compat.PackageInstallerCompat;
 import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo;
 import com.android.launcher3.compat.UserManagerCompat;
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.dynamicui.ExtractionUtils;
 import com.android.launcher3.folder.Folder;
 import com.android.launcher3.folder.FolderIcon;
+import com.android.launcher3.folder.FolderIconPreviewVerifier;
 import com.android.launcher3.graphics.LauncherIcons;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.model.AddWorkspaceItemsTask;
@@ -71,6 +72,7 @@
 import com.android.launcher3.shortcuts.ShortcutInfoCompat;
 import com.android.launcher3.shortcuts.ShortcutKey;
 import com.android.launcher3.util.ComponentKey;
+import com.android.launcher3.util.LooperIdleLock;
 import com.android.launcher3.util.ManagedProfileHeuristic;
 import com.android.launcher3.util.MultiHashMap;
 import com.android.launcher3.util.PackageManagerHelper;
@@ -109,9 +111,9 @@
     private static final int ITEMS_CHUNK = 6; // batch size for the workspace icons
     private static final long INVALID_SCREEN_ID = -1L;
 
+    private final MainThreadExecutor mUiExecutor = new MainThreadExecutor();
     @Thunk final LauncherAppState mApp;
     @Thunk final Object mLock = new Object();
-    @Thunk DeferredHandler mHandler = new DeferredHandler();
     @Thunk LoaderTask mLoaderTask;
     @Thunk boolean mIsLoaderTaskRunning;
     @Thunk boolean mHasLoaderCompletedOnce;
@@ -127,6 +129,11 @@
     // our monitoring of the package manager provides all updates and we never
     // need to do a requery. This is only ever touched from the loader thread.
     private boolean mModelLoaded;
+    public boolean isModelLoaded() {
+        synchronized (mLock) {
+            return mModelLoaded && mLoaderTask == null;
+        }
+    }
 
     /**
      * Set of runnables to be called on the background thread after the workspace binding
@@ -212,17 +219,6 @@
         mUserManager = UserManagerCompat.getInstance(context);
     }
 
-    /** Runs the specified runnable immediately if called from the main thread, otherwise it is
-     * posted on the main thread handler. */
-    private void runOnMainThread(Runnable r) {
-        if (sWorkerThread.getThreadId() == Process.myTid()) {
-            // If we are on the worker thread, post onto the main handler
-            mHandler.post(r);
-        } else {
-            r.run();
-        }
-    }
-
     /** Runs the specified runnable immediately if called from the worker thread, otherwise it is
      * posted on the worker thread handler. */
     private static void runOnWorkerThread(Runnable r) {
@@ -372,8 +368,6 @@
     public void initialize(Callbacks callbacks) {
         synchronized (mLock) {
             Preconditions.assertUIThread();
-            // Remove any queued UI runnables
-            mHandler.cancelAll();
             mCallbacks = new WeakReference<>(callbacks);
         }
     }
@@ -537,11 +531,11 @@
             if (mCallbacks != null && mCallbacks.get() != null) {
                 final Callbacks oldCallbacks = mCallbacks.get();
                 // Clear any pending bind-runnables from the synchronized load process.
-                runOnMainThread(new Runnable() {
-                    public void run() {
-                        oldCallbacks.clearPendingBinds();
-                    }
-                });
+                mUiExecutor.execute(new Runnable() {
+                            public void run() {
+                                oldCallbacks.clearPendingBinds();
+                            }
+                        });
 
                 // If there is already one running, tell it to stop.
                 stopLoaderLocked();
@@ -592,7 +586,6 @@
 
         @Thunk boolean mIsLoadingAndBindingWorkspace;
         private boolean mStopped;
-        @Thunk boolean mLoadAndBindStepFinished;
 
         LoaderTask(Context context, int pageToBindFirst) {
             mContext = context;
@@ -604,34 +597,10 @@
             // This way we don't start loading all apps until the workspace has settled
             // down.
             synchronized (LoaderTask.this) {
-                final long workspaceWaitTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0;
-
-                mHandler.postIdle(new Runnable() {
-                        public void run() {
-                            synchronized (LoaderTask.this) {
-                                mLoadAndBindStepFinished = true;
-                                if (DEBUG_LOADERS) {
-                                    Log.d(TAG, "done with previous binding step");
-                                }
-                                LoaderTask.this.notify();
-                            }
-                        }
-                    });
-
-                while (!mStopped && !mLoadAndBindStepFinished) {
-                    try {
-                        // Just in case mFlushingWorkerThread changes but we aren't woken up,
-                        // wait no longer than 1sec at a time
-                        this.wait(1000);
-                    } catch (InterruptedException ex) {
-                        // Ignore
-                    }
-                }
-                if (DEBUG_LOADERS) {
-                    Log.d(TAG, "waited "
-                            + (SystemClock.uptimeMillis()-workspaceWaitTime)
-                            + "ms for previous step to finish binding");
-                }
+                LooperIdleLock idleLock = new LooperIdleLock(this, Looper.getMainLooper());
+                // Just in case mFlushingWorkerThread changes but we aren't woken up,
+                // wait no longer than 1sec at a time
+                while (!mStopped && idleLock.awaitLocked(1000));
             }
         }
 
@@ -654,15 +623,6 @@
                 }
             }
 
-            // XXX: Throw an exception if we are already loading (since we touch the worker thread
-            //      data structures, we can't allow any other thread to touch that data, but because
-            //      this call is synchronous, we can get away with not locking).
-
-            // The LauncherModel is static in the LauncherAppState and mHandler may have queued
-            // operations from the previous activity.  We need to ensure that all queued operations
-            // are executed before any synchronous binding work is done.
-            mHandler.flush();
-
             // Divide the set of loaded items into those that we are binding synchronously, and
             // everything else that is to be bound normally (asynchronously).
             bindWorkspace(synchronousBindPage);
@@ -690,6 +650,7 @@
             }
 
             try {
+                long now = 0;
                 if (DEBUG_LOADERS) Log.d(TAG, "step 1.1: loading workspace");
                 // Set to false in bindWorkspace()
                 mIsLoadingAndBindingWorkspace = true;
@@ -700,8 +661,12 @@
                 bindWorkspace(mPageToBindFirst);
 
                 // Take a break
-                if (DEBUG_LOADERS) Log.d(TAG, "step 1 completed, wait for idle");
+                if (DEBUG_LOADERS) {
+                    Log.d(TAG, "step 1 completed, wait for idle");
+                    now = SystemClock.uptimeMillis();
+                }
                 waitForIdle();
+                if (DEBUG_LOADERS) Log.d(TAG, "Waited " + (SystemClock.uptimeMillis() - now) + "ms");
                 verifyNotStopped();
 
                 // second step
@@ -713,8 +678,12 @@
                 updateIconCache();
 
                 // Take a break
-                if (DEBUG_LOADERS) Log.d(TAG, "step 2 completed, wait for idle");
+                if (DEBUG_LOADERS) {
+                    Log.d(TAG, "step 2 completed, wait for idle");
+                    now = SystemClock.uptimeMillis();
+                }
                 waitForIdle();
+                if (DEBUG_LOADERS) Log.d(TAG, "Waited " + (SystemClock.uptimeMillis() - now) + "ms");
                 verifyNotStopped();
 
                 // third step
@@ -883,6 +852,8 @@
                     Intent intent;
                     String targetPkg;
 
+                    FolderIconPreviewVerifier verifier =
+                            new FolderIconPreviewVerifier(mApp.getInvariantDeviceProfile());
                     while (!mStopped && c.moveToNext()) {
                         try {
                             if (c.user == null) {
@@ -1007,7 +978,7 @@
                                 }
 
                                 boolean useLowResIcon = !c.isOnWorkspaceOrHotseat() &&
-                                        c.getInt(rankIndex) >= FolderIcon.NUM_ITEMS_IN_PREVIEW;
+                                        !verifier.isItemInPreview(c.getInt(rankIndex));
 
                                 if (c.restoreFlag != 0) {
                                     // Already verified above that user is same as default user
@@ -1259,17 +1230,23 @@
                     }
                 }
 
-                // Sort all the folder items and make sure the first 3 items are high resolution.
+                FolderIconPreviewVerifier verifier =
+                        new FolderIconPreviewVerifier(mApp.getInvariantDeviceProfile());
+                // Sort the folder items and make sure all items in the preview are high resolution.
                 for (FolderInfo folder : sBgDataModel.folders) {
                     Collections.sort(folder.contents, Folder.ITEM_POS_COMPARATOR);
-                    int pos = 0;
+                    verifier.setFolderInfo(folder);
+
+                    int numItemsInPreview = 0;
                     for (ShortcutInfo info : folder.contents) {
-                        if (info.usingLowResIcon &&
-                                info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) {
+                        if (info.usingLowResIcon
+                                && info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION
+                                && verifier.isItemInPreview(info.rank)) {
                             mIconCache.getTitleAndIcon(info, false);
+                            numItemsInPreview++;
                         }
-                        pos ++;
-                        if (pos >= FolderIcon.NUM_ITEMS_IN_PREVIEW) {
+
+                        if (numItemsInPreview >= FolderIcon.NUM_ITEMS_IN_PREVIEW) {
                             break;
                         }
                     }
@@ -1394,7 +1371,7 @@
                                 return Utilities.longCompare(lhs.screenId, rhs.screenId);
                             }
                             default:
-                                if (ProviderConfig.IS_DOGFOOD_BUILD) {
+                                if (FeatureFlags.IS_DOGFOOD_BUILD) {
                                     throw new RuntimeException("Unexpected container type when " +
                                             "sorting workspace items.");
                                 }
@@ -1419,7 +1396,7 @@
                     }
                 }
             };
-            runOnMainThread(r);
+            mUiExecutor.execute(r);
         }
 
         private void bindWorkspaceItems(final Callbacks oldCallbacks,
@@ -1525,11 +1502,11 @@
                     }
                 }
             };
-            runOnMainThread(r);
+            mUiExecutor.execute(r);
 
             bindWorkspaceScreens(oldCallbacks, orderedScreenIds);
 
-            Executor mainExecutor = new DeferredMainThreadExecutor();
+            Executor mainExecutor = mUiExecutor;
             // Load items on the current page.
             bindWorkspaceItems(oldCallbacks, currentWorkspaceItems, currentAppWidgets, mainExecutor);
 
@@ -1539,7 +1516,7 @@
             // This ensures that the first screen is immediately visible (eg. during rotation)
             // In case of !validFirstPage, bind all pages one after other.
             final Executor deferredExecutor =
-                    validFirstPage ? new ViewOnDrawExecutor(mHandler) : mainExecutor;
+                    validFirstPage ? new ViewOnDrawExecutor(mUiExecutor) : mainExecutor;
 
             mainExecutor.execute(new Runnable() {
                 @Override
@@ -1599,7 +1576,7 @@
                         }
                     }
                 };
-                runOnMainThread(r);
+                mUiExecutor.execute(r);
             }
         }
 
@@ -1649,7 +1626,7 @@
                     }
                 }
             };
-            runOnMainThread(r);
+            mUiExecutor.execute(r);
         }
 
         private void loadAllApps() {
@@ -1697,21 +1674,21 @@
                             heuristic.processUserApps(apps);
                         }
                     };
-                    runOnMainThread(new Runnable() {
+                    mUiExecutor.execute(new Runnable() {
 
-                        @Override
-                        public void run() {
-                            // Check isLoadingWorkspace on the UI thread, as it is updated on
-                            // the UI thread.
-                            if (mIsLoadingAndBindingWorkspace) {
-                                synchronized (mBindCompleteRunnables) {
-                                    mBindCompleteRunnables.add(r);
-                                }
-                            } else {
-                                runOnWorkerThread(r);
-                            }
-                        }
-                    });
+                                    @Override
+                                    public void run() {
+                                        // Check isLoadingWorkspace on the UI thread, as it is updated on
+                                        // the UI thread.
+                                        if (mIsLoadingAndBindingWorkspace) {
+                                            synchronized (mBindCompleteRunnables) {
+                                                mBindCompleteRunnables.add(r);
+                                            }
+                                        } else {
+                                            runOnWorkerThread(r);
+                                        }
+                                    }
+                                });
                 }
             }
             // Huh? Shouldn't this be inside the Runnable below?
@@ -1719,7 +1696,7 @@
             mBgAllAppsList.added = new ArrayList<AppInfo>();
 
             // Post callback on main thread
-            mHandler.post(new Runnable() {
+            mUiExecutor.execute(new Runnable() {
                 public void run() {
 
                     final long bindTime = SystemClock.uptimeMillis();
@@ -1773,7 +1750,7 @@
                 }
             }
         };
-        runOnMainThread(r);
+        mUiExecutor.execute(r);
     }
 
     /**
@@ -1824,12 +1801,12 @@
     public static abstract class BaseModelUpdateTask implements Runnable {
 
         private LauncherModel mModel;
-        private DeferredHandler mUiHandler;
+        private Executor mUiExecutor;
 
         /* package private */
         void init(LauncherModel model) {
             mModel = model;
-            mUiHandler = mModel.mHandler;
+            mUiExecutor = mModel.mUiExecutor;
         }
 
         @Override
@@ -1852,7 +1829,7 @@
          */
         public final void scheduleCallbackTask(final CallbackTask task) {
             final Callbacks callbacks = mModel.getCallback();
-            mUiHandler.post(new Runnable() {
+            mUiExecutor.execute(new Runnable() {
                 public void run() {
                     Callbacks cb = mModel.getCallback();
                     if (callbacks == cb && cb != null) {
@@ -1897,7 +1874,7 @@
     private void bindWidgetsModel(final Callbacks callbacks) {
         final MultiHashMap<PackageItemInfo, WidgetItem> widgets
                 = mBgWidgetsModel.getWidgetsMap().clone();
-        mHandler.post(new Runnable() {
+        mUiExecutor.execute(new Runnable() {
             @Override
             public void run() {
                 Callbacks cb = getCallback();
@@ -1954,14 +1931,6 @@
         }
     }
 
-    @Thunk class DeferredMainThreadExecutor implements Executor {
-
-        @Override
-        public void execute(Runnable command) {
-            runOnMainThread(command);
-        }
-    }
-
     /**
      * @return the looper for the worker thread which can be used to start background tasks.
      */
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index e250b3f..b83ddb9 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -53,7 +53,6 @@
 import com.android.launcher3.LauncherSettings.WorkspaceScreens;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.config.ProviderConfig;
 import com.android.launcher3.dynamicui.ExtractionUtils;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.provider.LauncherDbUtils;
@@ -63,6 +62,8 @@
 import com.android.launcher3.util.Preconditions;
 import com.android.launcher3.util.Thunk;
 
+import java.io.FileDescriptor;
+import java.io.PrintWriter;
 import java.net.URISyntaxException;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -74,7 +75,7 @@
 
     private static final int DATABASE_VERSION = 27;
 
-    public static final String AUTHORITY = ProviderConfig.AUTHORITY;
+    public static final String AUTHORITY = (BuildConfig.APPLICATION_ID + ".settings").intern();
 
     static final String EMPTY_DATABASE_CREATED = "EMPTY_DATABASE_CREATED";
 
@@ -85,9 +86,21 @@
 
     protected DatabaseHelper mOpenHelper;
 
+    /**
+     * $ adb shell dumpsys activity provider com.android.launcher3
+     */
+    @Override
+    public void dump(FileDescriptor fd, PrintWriter writer, String[] args) {
+        LauncherAppState appState = LauncherAppState.getInstanceNoCreate();
+        if (appState == null || !appState.getModel().isModelLoaded()) {
+            return;
+        }
+        appState.getModel().dumpState("", fd, writer, args);
+    }
+
     @Override
     public boolean onCreate() {
-        if (ProviderConfig.IS_DOGFOOD_BUILD) {
+        if (FeatureFlags.IS_DOGFOOD_BUILD) {
             Log.d(TAG, "Launcher process started");
         }
         mListenerHandler = new Handler(mListenerWrapper);
diff --git a/src/com/android/launcher3/LauncherSettings.java b/src/com/android/launcher3/LauncherSettings.java
index af2c102..e8e0eb2 100644
--- a/src/com/android/launcher3/LauncherSettings.java
+++ b/src/com/android/launcher3/LauncherSettings.java
@@ -22,8 +22,6 @@
 import android.os.Bundle;
 import android.provider.BaseColumns;
 
-import com.android.launcher3.config.ProviderConfig;
-
 /**
  * Settings related utilities.
  */
@@ -101,7 +99,7 @@
          * The content:// style URL for this table
          */
         public static final Uri CONTENT_URI = Uri.parse("content://" +
-                ProviderConfig.AUTHORITY + "/" + TABLE_NAME);
+                LauncherProvider.AUTHORITY + "/" + TABLE_NAME);
 
         /**
          * The rank of this screen -- ie. how it is ordered relative to the other screens.
@@ -121,7 +119,7 @@
          * The content:// style URL for this table
          */
         public static final Uri CONTENT_URI = Uri.parse("content://" +
-                ProviderConfig.AUTHORITY + "/" + TABLE_NAME);
+                LauncherProvider.AUTHORITY + "/" + TABLE_NAME);
 
         /**
          * The content:// style URL for a given row, identified by its id.
@@ -131,7 +129,7 @@
          * @return The unique content URL for the specified row.
          */
         public static Uri getContentUri(long id) {
-            return Uri.parse("content://" + ProviderConfig.AUTHORITY +
+            return Uri.parse("content://" + LauncherProvider.AUTHORITY +
                     "/" + TABLE_NAME + "/" + id);
         }
 
@@ -280,7 +278,7 @@
     public static final class Settings {
 
         public static final Uri CONTENT_URI = Uri.parse("content://" +
-                ProviderConfig.AUTHORITY + "/settings");
+                LauncherProvider.AUTHORITY + "/settings");
 
         public static final String METHOD_CLEAR_EMPTY_DB_FLAG = "clear_empty_db_flag";
         public static final String METHOD_WAS_EMPTY_DB_CREATED = "get_empty_db_flag";
diff --git a/src/com/android/launcher3/LauncherStateTransitionAnimation.java b/src/com/android/launcher3/LauncherStateTransitionAnimation.java
index 39c466d..f5af979 100644
--- a/src/com/android/launcher3/LauncherStateTransitionAnimation.java
+++ b/src/com/android/launcher3/LauncherStateTransitionAnimation.java
@@ -32,7 +32,7 @@
 import com.android.launcher3.allapps.AllAppsTransitionController;
 import com.android.launcher3.anim.AnimationLayerSet;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.util.CircleRevealOutlineProvider;
+import com.android.launcher3.anim.CircleRevealOutlineProvider;
 import com.android.launcher3.util.Thunk;
 import com.android.launcher3.widget.WidgetsContainerView;
 
diff --git a/src/com/android/launcher3/MainThreadExecutor.java b/src/com/android/launcher3/MainThreadExecutor.java
index 4ca0a59..5094682 100644
--- a/src/com/android/launcher3/MainThreadExecutor.java
+++ b/src/com/android/launcher3/MainThreadExecutor.java
@@ -18,14 +18,14 @@
 
 import android.os.Looper;
 
-import com.android.launcher3.util.LooperExecuter;
+import com.android.launcher3.util.LooperExecutor;
 
 /**
  * An executor service that executes its tasks on the main thread.
  *
  * Shutting down this executor is not supported.
  */
-public class MainThreadExecutor extends LooperExecuter {
+public class MainThreadExecutor extends LooperExecutor {
 
     public MainThreadExecutor() {
         super(Looper.getMainLooper());
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index abc5367..2413d8a 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -51,7 +51,7 @@
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityManager;
 
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
 
 import java.io.ByteArrayOutputStream;
 import java.io.Closeable;
@@ -575,7 +575,7 @@
             try {
                 c.close();
             } catch (IOException e) {
-                if (ProviderConfig.IS_DOGFOOD_BUILD) {
+                if (FeatureFlags.IS_DOGFOOD_BUILD) {
                     Log.d(TAG, "Error closing", e);
                 }
             }
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 7562dd8..862ed25 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -64,7 +64,6 @@
 import com.android.launcher3.badge.FolderBadgeInfo;
 import com.android.launcher3.compat.AppWidgetManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.config.ProviderConfig;
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.dragndrop.DragOptions;
@@ -2619,7 +2618,7 @@
                         CellLayout parentCell = getParentCellLayoutForView(cell);
                         if (parentCell != null) {
                             parentCell.removeView(cell);
-                        } else if (ProviderConfig.IS_DOGFOOD_BUILD) {
+                        } else if (FeatureFlags.IS_DOGFOOD_BUILD) {
                             throw new NullPointerException("mDragInfo.cell has null parent");
                         }
                         addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1],
@@ -2952,7 +2951,7 @@
 
         ItemInfo item = d.dragInfo;
         if (item == null) {
-            if (ProviderConfig.IS_DOGFOOD_BUILD) {
+            if (FeatureFlags.IS_DOGFOOD_BUILD) {
                 throw new NullPointerException("DragObject has null info");
             }
             return;
@@ -3609,7 +3608,7 @@
                     mDragInfo.container, mDragInfo.screenId);
             if (cellLayout != null) {
                 cellLayout.onDropChild(mDragInfo.cell);
-            } else if (ProviderConfig.IS_DOGFOOD_BUILD) {
+            } else if (FeatureFlags.IS_DOGFOOD_BUILD) {
                 throw new RuntimeException("Invalid state: cellLayout == null in "
                         + "Workspace#onDropCompleted. Please file a bug. ");
             };
@@ -3635,7 +3634,7 @@
         CellLayout parentCell = getParentCellLayoutForView(v);
         if (parentCell != null) {
             parentCell.removeView(v);
-        } else if (ProviderConfig.IS_DOGFOOD_BUILD) {
+        } else if (FeatureFlags.IS_DOGFOOD_BUILD) {
             // When an app is uninstalled using the drop target, we wait until resume to remove
             // the icon. We also remove all the corresponding items from the workspace at
             // {@link Launcher#bindComponentsRemoved}. That call can come before or after
diff --git a/src/com/android/launcher3/allapps/AlphabeticalAppsList.java b/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
index f228470..9e32d25 100644
--- a/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
+++ b/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
@@ -24,7 +24,7 @@
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.compat.AlphabeticIndexCompat;
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.discovery.AppDiscoveryAppInfo;
 import com.android.launcher3.discovery.AppDiscoveryItem;
 import com.android.launcher3.discovery.AppDiscoveryUpdateState;
@@ -440,7 +440,7 @@
                 if (info != null) {
                     mPredictedApps.add(info);
                 } else {
-                    if (ProviderConfig.IS_DOGFOOD_BUILD) {
+                    if (FeatureFlags.IS_DOGFOOD_BUILD) {
                         Log.e(TAG, "Predicted app not found: " + ck);
                     }
                 }
diff --git a/src/com/android/launcher3/util/CircleRevealOutlineProvider.java b/src/com/android/launcher3/anim/CircleRevealOutlineProvider.java
similarity index 97%
rename from src/com/android/launcher3/util/CircleRevealOutlineProvider.java
rename to src/com/android/launcher3/anim/CircleRevealOutlineProvider.java
index 9fe5147..9fb6b49 100644
--- a/src/com/android/launcher3/util/CircleRevealOutlineProvider.java
+++ b/src/com/android/launcher3/anim/CircleRevealOutlineProvider.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.android.launcher3.util;
+package com.android.launcher3.anim;
 
 public class CircleRevealOutlineProvider extends RevealOutlineAnimation {
 
diff --git a/src/com/android/launcher3/anim/PillHeightRevealOutlineProvider.java b/src/com/android/launcher3/anim/PillHeightRevealOutlineProvider.java
index be1e2d6..679e8e3 100644
--- a/src/com/android/launcher3/anim/PillHeightRevealOutlineProvider.java
+++ b/src/com/android/launcher3/anim/PillHeightRevealOutlineProvider.java
@@ -18,8 +18,6 @@
 
 import android.graphics.Rect;
 
-import com.android.launcher3.util.PillRevealOutlineProvider;
-
 /**
  * Extension of {@link PillRevealOutlineProvider} which only changes the height of the pill.
  * For now, we assume the height is added/removed from the bottom.
diff --git a/src/com/android/launcher3/util/PillRevealOutlineProvider.java b/src/com/android/launcher3/anim/PillRevealOutlineProvider.java
similarity index 98%
rename from src/com/android/launcher3/util/PillRevealOutlineProvider.java
rename to src/com/android/launcher3/anim/PillRevealOutlineProvider.java
index a57d69f..450f9db 100644
--- a/src/com/android/launcher3/util/PillRevealOutlineProvider.java
+++ b/src/com/android/launcher3/anim/PillRevealOutlineProvider.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.android.launcher3.util;
+package com.android.launcher3.anim;
 
 import android.graphics.Rect;
 import android.view.ViewOutlineProvider;
diff --git a/src/com/android/launcher3/util/RevealOutlineAnimation.java b/src/com/android/launcher3/anim/RevealOutlineAnimation.java
similarity index 96%
rename from src/com/android/launcher3/util/RevealOutlineAnimation.java
rename to src/com/android/launcher3/anim/RevealOutlineAnimation.java
index 4560477..51d00d9 100644
--- a/src/com/android/launcher3/util/RevealOutlineAnimation.java
+++ b/src/com/android/launcher3/anim/RevealOutlineAnimation.java
@@ -1,4 +1,4 @@
-package com.android.launcher3.util;
+package com.android.launcher3.anim;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -83,4 +83,8 @@
     public void getOutline(View v, Outline outline) {
         outline.setRoundRect(mOutline, mOutlineRadius);
     }
+
+    public float getRadius() {
+        return mOutlineRadius;
+    }
 }
diff --git a/src/com/android/launcher3/anim/RoundedRectRevealOutlineProvider.java b/src/com/android/launcher3/anim/RoundedRectRevealOutlineProvider.java
new file mode 100644
index 0000000..9c09477
--- /dev/null
+++ b/src/com/android/launcher3/anim/RoundedRectRevealOutlineProvider.java
@@ -0,0 +1,57 @@
+/*
+ * 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.graphics.Rect;
+
+/**
+ * A {@link RevealOutlineAnimation} that provides an outline that interpolates between two radii
+ * and two {@link Rect}s.
+ *
+ * An example usage of this provider is an outline that starts out as a circle and ends
+ * as a rounded rectangle.
+ */
+public class RoundedRectRevealOutlineProvider extends RevealOutlineAnimation {
+    private final float mStartRadius;
+    private final float mEndRadius;
+
+    private final Rect mStartRect;
+    private final Rect mEndRect;
+
+    public RoundedRectRevealOutlineProvider(float startRadius, float endRadius, Rect startRect,
+            Rect endRect) {
+        mStartRadius = startRadius;
+        mEndRadius = endRadius;
+        mStartRect = startRect;
+        mEndRect = endRect;
+    }
+
+    @Override
+    public boolean shouldRemoveElevationDuringAnimation() {
+        return false;
+    }
+
+    @Override
+    public void setProgress(float progress) {
+        mOutlineRadius = (1 - progress) * mStartRadius + progress * mEndRadius;
+
+        mOutline.left = (int) ((1 - progress) * mStartRect.left + progress * mEndRect.left);
+        mOutline.top = (int) ((1 - progress) * mStartRect.top + progress * mEndRect.top);
+        mOutline.right = (int) ((1 - progress) * mStartRect.right + progress * mEndRect.right);
+        mOutline.bottom = (int) ((1 - progress) * mStartRect.bottom + progress * mEndRect.bottom);
+    }
+}
diff --git a/src/com/android/launcher3/folder/ClippedFolderIconLayoutRule.java b/src/com/android/launcher3/folder/ClippedFolderIconLayoutRule.java
index 840fcf5..503c2ec 100644
--- a/src/com/android/launcher3/folder/ClippedFolderIconLayoutRule.java
+++ b/src/com/android/launcher3/folder/ClippedFolderIconLayoutRule.java
@@ -121,6 +121,11 @@
     }
 
     @Override
+    public float getIconSize() {
+        return mIconSize;
+    }
+
+    @Override
     public int maxNumItems() {
         return MAX_NUM_ITEMS_IN_PREVIEW;
     }
@@ -129,24 +134,4 @@
     public boolean clipToBackground() {
         return true;
     }
-
-    @Override
-    public List<View> getItemsToDisplay(Folder folder) {
-        List<View> items = new ArrayList<>(folder.getItemsInReadingOrder());
-        int numItems = items.size();
-        if (FeatureFlags.LAUNCHER3_NEW_FOLDER_ANIMATION && numItems > MAX_NUM_ITEMS_IN_PREVIEW) {
-            // We match the icons in the preview with the layout of the opened folder (b/27944225),
-            // but we still need to figure out how we want to handle updating the preview when the
-            // upper left quadrant changes.
-            int appsPerRow = folder.mContent.getPageAt(0).getCountX();
-            int appsToDelete = appsPerRow - MAX_NUM_ITEMS_PER_ROW;
-
-            // We only display the upper left quadrant.
-            while (appsToDelete > 0) {
-                items.remove(MAX_NUM_ITEMS_PER_ROW);
-                appsToDelete--;
-            }
-        }
-        return items.subList(0, Math.min(numItems, MAX_NUM_ITEMS_IN_PREVIEW));
-    }
 }
diff --git a/src/com/android/launcher3/folder/Folder.java b/src/com/android/launcher3/folder/Folder.java
index 3d2ffb4..15bdea9 100644
--- a/src/com/android/launcher3/folder/Folder.java
+++ b/src/com/android/launcher3/folder/Folder.java
@@ -46,6 +46,7 @@
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.Alarm;
 import com.android.launcher3.AppInfo;
+import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.CellLayout;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.DragSource;
@@ -66,8 +67,8 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.Workspace.ItemOperator;
 import com.android.launcher3.accessibility.AccessibleDragListenerAdapter;
+import com.android.launcher3.anim.AnimationLayerSet;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.config.ProviderConfig;
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragController.DragListener;
 import com.android.launcher3.dragndrop.DragLayer;
@@ -75,12 +76,13 @@
 import com.android.launcher3.pageindicators.PageIndicatorDots;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
-import com.android.launcher3.util.CircleRevealOutlineProvider;
+import com.android.launcher3.anim.CircleRevealOutlineProvider;
 import com.android.launcher3.util.Thunk;
 
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
+import java.util.List;
 
 /**
  * Represents a set of icons chosen by the user or generated by the system.
@@ -133,8 +135,10 @@
 
     @Thunk final ArrayList<View> mItemsInReadingOrder = new ArrayList<View>();
 
+    private FolderAnimationManager mFolderAnimationManager;
+
     private final int mExpandDuration;
-    private final int mMaterialExpandDuration;
+    public final int mMaterialExpandDuration;
     private final int mMaterialExpandStagger;
 
     protected final Launcher mLauncher;
@@ -475,6 +479,8 @@
                 }
             }
         });
+
+        mFolderAnimationManager = new FolderAnimationManager(this);
     }
 
     /**
@@ -510,51 +516,12 @@
         mState = STATE_SMALL;
     }
 
-    /**
-     * Opens the user folder described by the specified tag. The opening of the folder
-     * is animated relative to the specified View. If the View is null, no animation
-     * is played.
-     */
-    public void animateOpen() {
-        Folder openFolder = getOpen(mLauncher);
-        if (openFolder != null && openFolder != this) {
-            // Close any open folder before opening a folder.
-            openFolder.close(true);
-        }
-
-        DragLayer dragLayer = mLauncher.getDragLayer();
-        // Just verify that the folder hasn't already been added to the DragLayer.
-        // There was a one-off crash where the folder had a parent already.
-        if (getParent() == null) {
-            dragLayer.addView(this);
-            mDragController.addDropTarget(this);
-        } else {
-            if (ProviderConfig.IS_DOGFOOD_BUILD) {
-                Log.e(TAG, "Opening folder (" + this + ") which already has a parent:"
-                        + getParent());
-            }
-        }
-
-        mIsOpen = true;
-
-        mContent.completePendingPageChanges();
-        if (!mDragInProgress) {
-            // Open on the first page.
-            mContent.snapToPageImmediately(0);
-        }
-
-        // This is set to true in close(), but isn't reset to false until onDropCompleted(). This
-        // leads to an inconsistent state if you drag out of the folder and drag back in without
-        // dropping. One resulting issue is that replaceFolderWithFinalItem() can be called twice.
-        mDeleteFolderOnDropCompleted = false;
-
-        final Runnable onCompleteRunnable;
+    private AnimatorSet getOpeningAnimatorSet() {
         prepareReveal();
-        centerAboutIcon();
-
         mFolderIcon.growAndFadeOut();
 
         AnimatorSet anim = LauncherAnimUtils.createAnimatorSet();
+
         int width = getFolderWidth();
         int height = getFolderHeight();
 
@@ -596,13 +563,61 @@
         anim.play(textAlpha);
         anim.play(reveal);
 
-        mContent.setLayerType(LAYER_TYPE_HARDWARE, null);
-        mFooter.setLayerType(LAYER_TYPE_HARDWARE, null);
+        AnimationLayerSet layerSet = new AnimationLayerSet();
+        layerSet.addView(mContent);
+        layerSet.addView(mFooter);
+        anim.addListener(layerSet);
+
+        return anim;
+    }
+
+    /**
+     * Opens the user folder described by the specified tag. The opening of the folder
+     * is animated relative to the specified View. If the View is null, no animation
+     * is played.
+     */
+    public void animateOpen() {
+        Folder openFolder = getOpen(mLauncher);
+        if (openFolder != null && openFolder != this) {
+            // Close any open folder before opening a folder.
+            openFolder.close(true);
+        }
+
+        DragLayer dragLayer = mLauncher.getDragLayer();
+        // Just verify that the folder hasn't already been added to the DragLayer.
+        // There was a one-off crash where the folder had a parent already.
+        if (getParent() == null) {
+            dragLayer.addView(this);
+            mDragController.addDropTarget(this);
+        } else {
+            if (FeatureFlags.IS_DOGFOOD_BUILD) {
+                Log.e(TAG, "Opening folder (" + this + ") which already has a parent:"
+                        + getParent());
+            }
+        }
+
+        mIsOpen = true;
+
+        mContent.completePendingPageChanges();
+        if (!mDragInProgress) {
+            // Open on the first page.
+            mContent.snapToPageImmediately(0);
+        }
+
+        // This is set to true in close(), but isn't reset to false until onDropCompleted(). This
+        // leads to an inconsistent state if you drag out of the folder and drag back in without
+        // dropping. One resulting issue is that replaceFolderWithFinalItem() can be called twice.
+        mDeleteFolderOnDropCompleted = false;
+
+        final Runnable onCompleteRunnable;
+        centerAboutIcon();
+
+        AnimatorSet anim = FeatureFlags.LAUNCHER3_NEW_FOLDER_ANIMATION
+                ? mFolderAnimationManager.getOpeningAnimator()
+                : getOpeningAnimatorSet();
         onCompleteRunnable = new Runnable() {
             @Override
             public void run() {
-                mContent.setLayerType(LAYER_TYPE_NONE, null);
-                mFooter.setLayerType(LAYER_TYPE_NONE, null);
                 mLauncher.getUserEventDispatcher().resetElapsedContainerMillis();
             }
         };
@@ -697,7 +712,7 @@
             mFolderName.dispatchBackKey();
         }
 
-        if (mFolderIcon != null) {
+        if (mFolderIcon != null && !FeatureFlags.LAUNCHER3_NEW_FOLDER_ANIMATION) {
             mFolderIcon.shrinkAndFadeIn(animate);
         }
 
@@ -715,12 +730,24 @@
         parent.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
     }
 
+    private AnimatorSet getClosingAnimatorSet() {
+        AnimatorSet animatorSet = LauncherAnimUtils.createAnimatorSet();
+        animatorSet.play(LauncherAnimUtils.ofViewAlphaAndScale(this, 0, 0.9f, 0.9f));
+
+        AnimationLayerSet layerSet = new AnimationLayerSet();
+        layerSet.addView(this);
+        animatorSet.addListener(layerSet);
+        animatorSet.setDuration(mExpandDuration);
+        return animatorSet;
+    }
+
     private void animateClosed() {
-        final ObjectAnimator oa = LauncherAnimUtils.ofViewAlphaAndScale(this, 0, 0.9f, 0.9f);
-        oa.addListener(new AnimatorListenerAdapter() {
+        AnimatorSet a = FeatureFlags.LAUNCHER3_NEW_FOLDER_ANIMATION
+                ? mFolderAnimationManager.getClosingAnimator()
+                : getClosingAnimatorSet();
+        a.addListener(new AnimatorListenerAdapter() {
             @Override
             public void onAnimationEnd(Animator animation) {
-                setLayerType(LAYER_TYPE_NONE, null);
                 closeComplete(true);
             }
             @Override
@@ -732,9 +759,7 @@
                 mState = STATE_ANIMATING;
             }
         });
-        oa.setDuration(mExpandDuration);
-        setLayerType(LAYER_TYPE_HARDWARE, null);
-        oa.start();
+        a.start();
     }
 
     private void closeComplete(boolean wasAnimated) {
@@ -745,10 +770,14 @@
         }
         mDragController.removeDropTarget(this);
         clearFocus();
-        if (wasAnimated) {
-            mFolderIcon.requestFocus();
+        if (mFolderIcon != null) {
+            mFolderIcon.setVisibility(View.VISIBLE);
+            if (wasAnimated) {
+                mFolderIcon.requestFocus();
+            }
         }
 
+
         if (mRearrangeOnClose) {
             rearrangeChildren();
             mRearrangeOnClose = false;
@@ -1436,6 +1465,26 @@
         return mItemsInReadingOrder;
     }
 
+    public List<BubbleTextView> getItemsOnCurrentPage() {
+        ArrayList<View> allItems = getItemsInReadingOrder();
+        int currentPage = mContent.getCurrentPage();
+        int lastPage = mContent.getPageCount() - 1;
+        int totalItemsInFolder = allItems.size();
+        int itemsPerPage = mContent.itemsPerPage();
+        int numItemsOnCurrentPage = currentPage == lastPage
+                ? totalItemsInFolder - (itemsPerPage * currentPage)
+                : itemsPerPage;
+
+        int startIndex = currentPage * itemsPerPage;
+        int endIndex = startIndex + numItemsOnCurrentPage;
+
+        List<BubbleTextView> itemsOnCurrentPage = new ArrayList<>(numItemsOnCurrentPage);
+        for (int i = startIndex; i < endIndex; ++i) {
+            itemsOnCurrentPage.add((BubbleTextView) allItems.get(i));
+        }
+        return itemsOnCurrentPage;
+    }
+
     public void onFocusChange(View v, boolean hasFocus) {
         if (v == mFolderName) {
             if (hasFocus) {
diff --git a/src/com/android/launcher3/folder/FolderAnimationManager.java b/src/com/android/launcher3/folder/FolderAnimationManager.java
new file mode 100644
index 0000000..6ce572d
--- /dev/null
+++ b/src/com/android/launcher3/folder/FolderAnimationManager.java
@@ -0,0 +1,357 @@
+/*
+ * 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.folder;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
+import android.animation.TimeInterpolator;
+import android.content.Context;
+import android.graphics.Color;
+import android.graphics.Rect;
+import android.graphics.drawable.GradientDrawable;
+import android.support.v4.graphics.ColorUtils;
+import android.util.Property;
+import android.view.View;
+import android.view.animation.AnimationUtils;
+
+import com.android.launcher3.BubbleTextView;
+import com.android.launcher3.CellLayout;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherAnimUtils;
+import com.android.launcher3.R;
+import com.android.launcher3.ShortcutAndWidgetContainer;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.anim.RoundedRectRevealOutlineProvider;
+import com.android.launcher3.dragndrop.DragLayer;
+import com.android.launcher3.util.Themes;
+
+import java.util.List;
+
+/**
+ * Manages the opening and closing animations for a {@link Folder}.
+ *
+ * All of the animations are done in the Folder.
+ * ie. When the user taps on the FolderIcon, we immediately hide the FolderIcon and show the Folder
+ * in its place before starting the animation.
+ */
+public class FolderAnimationManager {
+
+    private Folder mFolder;
+    private FolderPagedView mContent;
+    private GradientDrawable mFolderBackground;
+
+    private FolderIcon mFolderIcon;
+    private FolderIcon.PreviewBackground mPreviewBackground;
+
+    private Context mContext;
+    private Launcher mLauncher;
+
+    private Animator mRevealAnimator;
+    private final TimeInterpolator mOpeningInterpolator;
+    private final TimeInterpolator mClosingInterpolator;
+    private final TimeInterpolator mPreviewItemOpeningInterpolator;
+    private final TimeInterpolator mPreviewItemClosingInterpolator;
+
+    private final FolderIcon.PreviewItemDrawingParams mTmpParams =
+            new FolderIcon.PreviewItemDrawingParams(0, 0, 0, 0);
+
+    private static final Property<View, Float> SCALE_PROPERTY =
+            new Property<View, Float>(Float.class, "scale") {
+                @Override
+                public Float get(View view) {
+                    return view.getScaleX();
+                }
+
+                @Override
+                public void set(View view, Float scale) {
+                    view.setScaleX(scale);
+                    view.setScaleY(scale);
+                }
+            };
+
+    private static final Property<List<BubbleTextView>, Integer> ITEMS_TEXT_COLOR_PROPERTY =
+            new Property<List<BubbleTextView>, Integer>(Integer.class, "textColor") {
+                @Override
+                public Integer get(List<BubbleTextView> items) {
+                    return items.get(0).getCurrentTextColor();
+                }
+
+                @Override
+                public void set(List<BubbleTextView> items, Integer color) {
+                    int size = items.size();
+
+                    for (int i = 0; i < size; ++i) {
+                        items.get(i).setTextColor(color);
+                    }
+                }
+            };
+
+    public FolderAnimationManager(Folder folder) {
+        mFolder = folder;
+        mContent = folder.mContent;
+        mFolderBackground = (GradientDrawable) mFolder.getBackground();
+
+        mFolderIcon = folder.mFolderIcon;
+        mPreviewBackground = mFolderIcon.mBackground;
+
+        mContext = folder.getContext();
+        mLauncher = folder.mLauncher;
+
+        mOpeningInterpolator = AnimationUtils.loadInterpolator(mContext,
+                R.interpolator.folder_opening_interpolator);
+        mClosingInterpolator = AnimationUtils.loadInterpolator(mContext,
+                R.interpolator.folder_closing_interpolator);
+        mPreviewItemOpeningInterpolator = AnimationUtils.loadInterpolator(mContext,
+                R.interpolator.folder_preview_item_opening_interpolator);
+        mPreviewItemClosingInterpolator = AnimationUtils.loadInterpolator(mContext,
+                R.interpolator.folder_preview_item_closing_interpolator);
+    }
+
+    public AnimatorSet getOpeningAnimator() {
+        mFolder.setPivotX(0);
+        mFolder.setPivotY(0);
+
+        AnimatorSet a = getAnimatorSet(true /* isOpening */);
+        a.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationStart(Animator animation) {
+                mFolderIcon.setVisibility(View.INVISIBLE);
+            }
+        });
+        return a;
+    }
+
+    public AnimatorSet getClosingAnimator() {
+        AnimatorSet a = getAnimatorSet(false /* isOpening */);
+        return a;
+    }
+
+    /**
+     * Prepares the Folder for animating between open / closed states.
+     *
+     * @param isOpening If true, return the animator set for the opening animation.
+     */
+    private AnimatorSet getAnimatorSet(final boolean isOpening) {
+        final DragLayer.LayoutParams lp = (DragLayer.LayoutParams) mFolder.getLayoutParams();
+        FolderIcon.PreviewLayoutRule rule = mFolderIcon.getLayoutRule();
+        final List<BubbleTextView> itemsInPreview = mFolderIcon.getItemsToDisplay();
+
+        // Match size/scale of icons in the preview
+        float previewScale = rule.scaleForItem(0, itemsInPreview.size());
+        float previewSize = rule.getIconSize() * previewScale;
+        float folderScale = previewSize / itemsInPreview.get(0).getIconSize();
+
+        final float initialScale = folderScale;
+        final float finalScale = 1f;
+        float scale = isOpening ? initialScale : finalScale;
+        mFolder.setScaleX(scale);
+        mFolder.setScaleY(scale);
+
+        // Match position of the FolderIcon
+        final Rect folderIconPos = new Rect();
+        float scaleRelativeToDragLayer = mLauncher.getDragLayer()
+                .getDescendantRectRelativeToSelf(mFolderIcon, folderIconPos);
+        folderScale *= scaleRelativeToDragLayer;
+
+        // We want to create a small X offset for the preview items, so that they follow their
+        // expected path to their final locations. ie. an icon should not move right, if it's final
+        // location is to its left. This value is arbitrarily defined.
+        final int nudgeOffsetX = (int) (previewSize / 2);
+
+        final int paddingOffsetX = (int) ((mFolder.getPaddingLeft() + mContent.getPaddingLeft())
+                * folderScale);
+        final int paddingOffsetY = (int) ((mFolder.getPaddingTop() + mContent.getPaddingTop())
+                * folderScale);
+
+        int initialX = folderIconPos.left + mFolderIcon.mBackground.getOffsetX() - paddingOffsetX
+                - nudgeOffsetX;
+        int initialY = folderIconPos.top + mFolderIcon.mBackground.getOffsetY() - paddingOffsetY;
+        final float xDistance = initialX - lp.x;
+        final float yDistance = initialY - lp.y;
+
+        // Set up the Folder background.
+        final int finalColor = Themes.getAttrColor(mContext, android.R.attr.colorPrimary);
+        final int initialColor =
+                ColorUtils.setAlphaComponent(finalColor, mPreviewBackground.getBackgroundAlpha());
+        mFolderBackground.setColor(isOpening ? initialColor : finalColor);
+
+        // Initialize the Folder items' text.
+        final List<BubbleTextView> itemsOnCurrentPage = mFolder.getItemsOnCurrentPage();
+        final int finalTextColor = Themes.getAttrColor(mContext, android.R.attr.textColorSecondary);
+        ITEMS_TEXT_COLOR_PROPERTY.set(itemsOnCurrentPage, isOpening ? Color.TRANSPARENT
+                : finalTextColor);
+
+        // Create the animators.
+        AnimatorSet a = LauncherAnimUtils.createAnimatorSet();
+        a.setDuration(mFolder.mMaterialExpandDuration);
+
+        ObjectAnimator translationX = isOpening
+                ? ObjectAnimator.ofFloat(mFolder, View.TRANSLATION_X, xDistance, 0)
+                : ObjectAnimator.ofFloat(mFolder, View.TRANSLATION_X, 0, xDistance);
+        a.play(translationX);
+
+        ObjectAnimator translationY = isOpening
+                ? ObjectAnimator.ofFloat(mFolder, View.TRANSLATION_Y, yDistance, 0)
+                : ObjectAnimator.ofFloat(mFolder, View.TRANSLATION_Y, 0, yDistance);
+        a.play(translationY);
+
+        ObjectAnimator scaleAnimator = isOpening
+                ? ObjectAnimator.ofFloat(mFolder, SCALE_PROPERTY, initialScale, finalScale)
+                : ObjectAnimator.ofFloat(mFolder, SCALE_PROPERTY, finalScale, initialScale);
+        a.play(scaleAnimator);
+
+        ObjectAnimator itemsTextColor = isOpening
+                ? ObjectAnimator.ofArgb(itemsOnCurrentPage, ITEMS_TEXT_COLOR_PROPERTY,
+                        Color.TRANSPARENT, finalTextColor)
+                : ObjectAnimator.ofArgb(itemsOnCurrentPage, ITEMS_TEXT_COLOR_PROPERTY,
+                        finalTextColor, Color.TRANSPARENT);
+        a.play(itemsTextColor);
+
+        ObjectAnimator backgroundColor = isOpening
+                ? ObjectAnimator.ofArgb(mFolderBackground, "color", initialColor, finalColor)
+                : ObjectAnimator.ofArgb(mFolderBackground, "color", finalColor, initialColor);
+        a.play(backgroundColor);
+
+        // Set up the reveal animation that clips the Folder.
+        float stroke = mPreviewBackground.getStrokeWidth();
+        int initialSize = (int) ((mFolderIcon.mBackground.getRadius() * 2 + stroke) / folderScale);
+        int totalOffsetX = paddingOffsetX + Math.round(nudgeOffsetX / folderScale);
+        int unscaledStroke = (int) Math.floor(stroke / folderScale);
+        Rect startRect = new Rect(totalOffsetX + unscaledStroke, unscaledStroke,
+                totalOffsetX + initialSize, initialSize);
+        Rect endRect = new Rect(0, 0, lp.width, lp.height);
+        a.play(getRevealAnimator(isOpening, initialSize / 2f, startRect, endRect));
+
+        a.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                super.onAnimationEnd(animation);
+                ITEMS_TEXT_COLOR_PROPERTY.set(itemsOnCurrentPage, finalTextColor);
+            }
+        });
+
+        // We set the interpolator on all current child animators here, because the preview item
+        // animators may use a different interpolator.
+        for (Animator animator : a.getChildAnimations()) {
+            animator.setInterpolator(isOpening ? mOpeningInterpolator : mClosingInterpolator);
+        }
+
+        addPreviewItemAnimatorsToSet(a, isOpening, folderScale, nudgeOffsetX);
+        return a;
+    }
+
+    private Animator getRevealAnimator(boolean isOpening, float circleRadius, Rect start,
+            Rect end) {
+        boolean revealIsRunning = mRevealAnimator != null && mRevealAnimator.isRunning();
+        final float finalRadius = revealIsRunning
+                ? ((RoundedRectRevealOutlineProvider) mFolder.getOutlineProvider()).getRadius()
+                : Utilities.pxFromDp(2, mContext.getResources().getDisplayMetrics());
+        if (revealIsRunning) {
+            mRevealAnimator.cancel();
+        }
+        mRevealAnimator = new RoundedRectRevealOutlineProvider(circleRadius, finalRadius,
+                start, end).createRevealAnimator(mFolder, !isOpening);
+        return mRevealAnimator;
+    }
+
+    /**
+     * Animate the items that are displayed in the preview.
+     */
+    private void addPreviewItemAnimatorsToSet(AnimatorSet animatorSet, boolean isOpening,
+            final float folderScale, int nudgeOffsetX) {
+        FolderIcon.PreviewLayoutRule rule = mFolderIcon.getLayoutRule();
+        final List<BubbleTextView> itemsInPreview = mFolderIcon.getItemsToDisplay();
+        final int numItemsInPreview = itemsInPreview.size();
+
+        TimeInterpolator previewItemInterpolator = getPreviewItemInterpolator(isOpening);
+
+        ShortcutAndWidgetContainer cwc = mContent.getPageAt(0).getShortcutsAndWidgets();
+        for (int i = 0; i < numItemsInPreview; ++i) {
+            final BubbleTextView btv = itemsInPreview.get(i);
+            CellLayout.LayoutParams btvLp = (CellLayout.LayoutParams) btv.getLayoutParams();
+
+            // Calculate the final values in the LayoutParams.
+            btvLp.isLockedToGrid = true;
+            cwc.setupLp(btv);
+
+            // Match scale of icons in the preview.
+            float previewScale = rule.scaleForItem(i, numItemsInPreview);
+            float previewSize = rule.getIconSize() * previewScale;
+            float iconScale = previewSize / itemsInPreview.get(i).getIconSize();
+
+            final float initialScale = iconScale / folderScale;
+            final float finalScale = 1f;
+            float scale = isOpening ? initialScale : finalScale;
+            btv.setScaleX(scale);
+            btv.setScaleY(scale);
+
+            // Match positions of the icons in the folder with their positions in the preview
+            rule.computePreviewItemDrawingParams(i, numItemsInPreview, mTmpParams);
+            // The PreviewLayoutRule assumes that the icon size takes up the entire width so we
+            // offset by the actual size.
+            int iconOffsetX = (int) ((btvLp.width - btv.getIconSize()) * iconScale) / 2;
+
+            final int previewPosX =
+                    (int) ((mTmpParams.transX - iconOffsetX + nudgeOffsetX) / folderScale);
+            final int previewPosY = (int) (mTmpParams.transY / folderScale);
+
+            final float xDistance = previewPosX - btvLp.x;
+            final float yDistance = previewPosY - btvLp.y;
+
+            ObjectAnimator translationX = isOpening
+                    ? ObjectAnimator.ofFloat(btv, View.TRANSLATION_X, xDistance, 0)
+                    : ObjectAnimator.ofFloat(btv, View.TRANSLATION_X, 0, xDistance);
+            translationX.setInterpolator(previewItemInterpolator);
+            animatorSet.play(translationX);
+
+            ObjectAnimator translationY = isOpening
+                    ? ObjectAnimator.ofFloat(btv, View.TRANSLATION_Y, yDistance, 0)
+                    : ObjectAnimator.ofFloat(btv, View.TRANSLATION_Y, 0, yDistance);
+            translationY.setInterpolator(previewItemInterpolator);
+            animatorSet.play(translationY);
+
+            ObjectAnimator scaleAnimator = isOpening
+                    ? ObjectAnimator.ofFloat(btv, SCALE_PROPERTY, initialScale, finalScale)
+                    : ObjectAnimator.ofFloat(btv, SCALE_PROPERTY, finalScale, initialScale);
+            scaleAnimator.setInterpolator(previewItemInterpolator);
+            animatorSet.play(scaleAnimator);
+
+            animatorSet.addListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationEnd(Animator animation) {
+                    super.onAnimationEnd(animation);
+                    btv.setTranslationX(0.0f);
+                    btv.setTranslationY(0.0f);
+                    btv.setScaleX(1f);
+                    btv.setScaleY(1f);
+                }
+            });
+        }
+    }
+
+    private TimeInterpolator getPreviewItemInterpolator(boolean isOpening) {
+        if (mFolder.getItemCount() > FolderIcon.NUM_ITEMS_IN_PREVIEW) {
+            // With larger folders, we want the preview items to reach their final positions faster
+            // (when opening) and later (when closing) so that they appear aligned with the rest of
+            // the folder items when they are both visible.
+            return isOpening ? mPreviewItemOpeningInterpolator : mPreviewItemClosingInterpolator;
+        }
+        return isOpening ? mOpeningInterpolator : mClosingInterpolator;
+    }
+}
diff --git a/src/com/android/launcher3/folder/FolderIcon.java b/src/com/android/launcher3/folder/FolderIcon.java
index f216010..9395572 100644
--- a/src/com/android/launcher3/folder/FolderIcon.java
+++ b/src/com/android/launcher3/folder/FolderIcon.java
@@ -125,6 +125,7 @@
 
     private float mSlop;
 
+    FolderIconPreviewVerifier mPreviewVerifier;
     private PreviewItemDrawingParams mTmpParams = new PreviewItemDrawingParams(0, 0, 0, 0);
     private ArrayList<PreviewItemDrawingParams> mDrawingParams = new ArrayList<PreviewItemDrawingParams>();
     private Drawable mReferenceDrawable = null;
@@ -219,6 +220,7 @@
 
     private void setFolder(Folder folder) {
         mFolder = folder;
+        mPreviewVerifier = new FolderIconPreviewVerifier(mLauncher.getDeviceProfile().inv);
         updateItemDrawingParams(false);
     }
 
@@ -405,6 +407,10 @@
         mBadgeInfo = badgeInfo;
     }
 
+    public PreviewLayoutRule getLayoutRule() {
+        return mPreviewLayoutRule;
+    }
+
     /**
      * Sets mBadgeScale to 1 or 0, animating if oldCount or newCount is 0
      * (the badge is being added or removed).
@@ -822,6 +828,14 @@
             };
             animateScale(1f, 1f, onStart, onEnd);
         }
+
+        public int getBackgroundAlpha() {
+            return (int) Math.min(MAX_BG_OPACITY, BG_OPACITY * mColorMultiplier);
+        }
+
+        public float getStrokeWidth() {
+            return mStrokeWidth;
+        }
     }
 
     public void setFolderBackground(PreviewBackground bg) {
@@ -989,8 +1003,26 @@
         return mFolderName.getVisibility() == VISIBLE;
     }
 
+    public List<BubbleTextView> getItemsToDisplay() {
+        mPreviewVerifier.setFolderInfo(mFolder.getInfo());
+
+        List<BubbleTextView> itemsToDisplay = new ArrayList<>();
+        List<View> allItems = mFolder.getItemsInReadingOrder();
+        int numItems = allItems.size();
+        for (int rank = 0; rank < numItems; ++rank) {
+            if (mPreviewVerifier.isItemInPreview(rank)) {
+                itemsToDisplay.add((BubbleTextView) allItems.get(rank));
+            }
+
+            if (itemsToDisplay.size() == FolderIcon.NUM_ITEMS_IN_PREVIEW) {
+                break;
+            }
+        }
+        return itemsToDisplay;
+    }
+
     private void updateItemDrawingParams(boolean animate) {
-        List<View> items = mPreviewLayoutRule.getItemsToDisplay(mFolder);
+        List<BubbleTextView> items = getItemsToDisplay();
         int nItemsInPreview = items.size();
 
         int prevNumItems = mDrawingParams.size();
@@ -1005,7 +1037,7 @@
 
         for (int i = 0; i < mDrawingParams.size(); i++) {
             PreviewItemDrawingParams p = mDrawingParams.get(i);
-            p.drawable = ((TextView) items.get(i)).getCompoundDrawables()[1];
+            p.drawable = items.get(i).getCompoundDrawables()[1];
 
             if (!animate || FeatureFlags.LAUNCHER3_LEGACY_FOLDER_ICON) {
                 computePreviewItemDrawingParams(i, nItemsInPreview, p);
@@ -1174,8 +1206,8 @@
             PreviewItemDrawingParams params);
         void init(int availableSpace, int intrinsicIconSize, boolean rtl);
         float scaleForItem(int index, int totalNumItems);
+        float getIconSize();
         int maxNumItems();
         boolean clipToBackground();
-        List<View> getItemsToDisplay(Folder folder);
     }
 }
diff --git a/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java b/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java
new file mode 100644
index 0000000..de962b0
--- /dev/null
+++ b/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java
@@ -0,0 +1,64 @@
+/*
+ * 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.folder;
+
+import com.android.launcher3.FolderInfo;
+import com.android.launcher3.InvariantDeviceProfile;
+import com.android.launcher3.config.FeatureFlags;
+
+/**
+ * Verifies whether an item in a Folder is displayed in the FolderIcon preview.
+ */
+public class FolderIconPreviewVerifier {
+
+    private final int mMaxGridCountX;
+    private final int mMaxGridCountY;
+    private final int mMaxItemsPerPage;
+    private final int[] mGridSize = new int[2];
+
+    private int mGridCountX;
+    private boolean mDisplayingUpperLeftQuadrant = false;
+
+    public FolderIconPreviewVerifier(InvariantDeviceProfile profile) {
+        mMaxGridCountX = profile.numFolderColumns;
+        mMaxGridCountY = profile.numFolderRows;
+        mMaxItemsPerPage = mMaxGridCountX * mMaxGridCountY;
+    }
+
+    public void setFolderInfo(FolderInfo info) {
+        int numItemsInFolder = info.contents.size();
+        mDisplayingUpperLeftQuadrant = FeatureFlags.LAUNCHER3_NEW_FOLDER_ANIMATION
+                && !FeatureFlags.LAUNCHER3_LEGACY_FOLDER_ICON
+                && numItemsInFolder > FolderIcon.NUM_ITEMS_IN_PREVIEW;
+
+        if (mDisplayingUpperLeftQuadrant) {
+            FolderPagedView.calculateGridSize(info.contents.size(), 0, 0, mMaxGridCountX,
+                    mMaxGridCountY, mMaxItemsPerPage, mGridSize);
+            mGridCountX = mGridSize[0];
+        }
+    }
+
+    public boolean isItemInPreview(int rank) {
+        if (mDisplayingUpperLeftQuadrant) {
+            // Returns true iff the icon is in the 2x2 upper left quadrant of the Folder.
+            int col = rank % mGridCountX;
+            int row = rank / mGridCountX;
+            return col < 2 && row < 2;
+        }
+        return rank < FolderIcon.NUM_ITEMS_IN_PREVIEW;
+    }
+}
diff --git a/src/com/android/launcher3/folder/FolderPagedView.java b/src/com/android/launcher3/folder/FolderPagedView.java
index eecce18..bc78324 100644
--- a/src/com/android/launcher3/folder/FolderPagedView.java
+++ b/src/com/android/launcher3/folder/FolderPagedView.java
@@ -42,7 +42,6 @@
 import com.android.launcher3.ShortcutInfo;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.Workspace.ItemOperator;
-import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.keyboard.ViewGroupFocusHelper;
 import com.android.launcher3.pageindicators.PageIndicator;
 import com.android.launcher3.util.Themes;
@@ -68,7 +67,7 @@
      */
     private static final float SCROLL_HINT_FRACTION = 0.07f;
 
-    private static final int[] sTempPosArray = new int[2];
+    private static final int[] sTmpArray = new int[2];
 
     public final boolean mIsRtl;
 
@@ -120,40 +119,58 @@
     }
 
     /**
-     * Sets up the grid size such that {@param count} items can fit in the grid.
+     * Calculates the grid size such that {@param count} items can fit in the grid.
      * The grid size is calculated such that countY <= countX and countX = ceil(sqrt(count)) while
      * maintaining the restrictions of {@link #mMaxCountX} &amp; {@link #mMaxCountY}.
      */
-    private void setupContentDimensions(int count) {
-        mAllocatedContentSize = count;
+    public static void calculateGridSize(int count, int countX, int countY, int maxCountX,
+            int maxCountY, int maxItemsPerPage, int[] out) {
         boolean done;
-        if (count >= mMaxItemsPerPage) {
-            mGridCountX = mMaxCountX;
-            mGridCountY = mMaxCountY;
+        int gridCountX = countX;
+        int gridCountY = countY;
+
+        if (count >= maxItemsPerPage) {
+            gridCountX = maxCountX;
+            gridCountY = maxCountY;
             done = true;
         } else {
             done = false;
         }
 
         while (!done) {
-            int oldCountX = mGridCountX;
-            int oldCountY = mGridCountY;
-            if (mGridCountX * mGridCountY < count) {
+            int oldCountX = gridCountX;
+            int oldCountY = gridCountY;
+            if (gridCountX * gridCountY < count) {
                 // Current grid is too small, expand it
-                if ((mGridCountX <= mGridCountY || mGridCountY == mMaxCountY) && mGridCountX < mMaxCountX) {
-                    mGridCountX++;
-                } else if (mGridCountY < mMaxCountY) {
-                    mGridCountY++;
+                if ((gridCountX <= gridCountY || gridCountY == maxCountY)
+                        && gridCountX < maxCountX) {
+                    gridCountX++;
+                } else if (gridCountY < maxCountY) {
+                    gridCountY++;
                 }
-                if (mGridCountY == 0) mGridCountY++;
-            } else if ((mGridCountY - 1) * mGridCountX >= count && mGridCountY >= mGridCountX) {
-                mGridCountY = Math.max(0, mGridCountY - 1);
-            } else if ((mGridCountX - 1) * mGridCountY >= count) {
-                mGridCountX = Math.max(0, mGridCountX - 1);
+                if (gridCountY == 0) gridCountY++;
+            } else if ((gridCountY - 1) * gridCountX >= count && gridCountY >= gridCountX) {
+                gridCountY = Math.max(0, gridCountY - 1);
+            } else if ((gridCountX - 1) * gridCountY >= count) {
+                gridCountX = Math.max(0, gridCountX - 1);
             }
-            done = mGridCountX == oldCountX && mGridCountY == oldCountY;
+            done = gridCountX == oldCountX && gridCountY == oldCountY;
         }
 
+        out[0] = gridCountX;
+        out[1] = gridCountY;
+    }
+
+    /**
+     * Sets up the grid size such that {@param count} items can fit in the grid.
+     */
+    public void setupContentDimensions(int count) {
+        mAllocatedContentSize = count;
+        calculateGridSize(count, mGridCountX, mGridCountY, mMaxCountX, mMaxCountY, mMaxItemsPerPage,
+                sTmpArray);
+        mGridCountX = sTmpArray[0];
+        mGridCountY = sTmpArray[1];
+
         // Update grid size
         for (int i = getPageCount() - 1; i >= 0; i--) {
             getPageAt(i).setGridSize(mGridCountX, mGridCountY);
@@ -314,6 +331,8 @@
         int position = 0;
         int newX, newY, rank;
 
+        FolderIconPreviewVerifier verifier = new FolderIconPreviewVerifier(
+                Launcher.getLauncher(getContext()).getDeviceProfile().inv);
         rank = 0;
         for (int i = 0; i < itemCount; i++) {
             View v = list.size() > i ? list.get(i) : null;
@@ -346,7 +365,7 @@
                 currentPage.addViewToCellLayout(
                         v, -1, mFolder.mLauncher.getViewIdForItem(info), lp, true);
 
-                if (rank < FolderIcon.NUM_ITEMS_IN_PREVIEW && v instanceof BubbleTextView) {
+                if (verifier.isItemInPreview(rank) && v instanceof BubbleTextView) {
                     ((BubbleTextView) v).verifyHighRes();
                 }
             }
@@ -400,12 +419,12 @@
     public int findNearestArea(int pixelX, int pixelY) {
         int pageIndex = getNextPage();
         CellLayout page = getPageAt(pageIndex);
-        page.findNearestArea(pixelX, pixelY, 1, 1, sTempPosArray);
+        page.findNearestArea(pixelX, pixelY, 1, 1, sTmpArray);
         if (mFolder.isLayoutRtl()) {
-            sTempPosArray[0] = page.getCountX() - sTempPosArray[0] - 1;
+            sTmpArray[0] = page.getCountX() - sTmpArray[0] - 1;
         }
         return Math.min(mAllocatedContentSize - 1,
-                pageIndex * mMaxItemsPerPage + sTempPosArray[1] * mGridCountX + sTempPosArray[0]);
+                pageIndex * mMaxItemsPerPage + sTmpArray[1] * mGridCountX + sTmpArray[0]);
     }
 
     public boolean isFull() {
diff --git a/src/com/android/launcher3/folder/StackFolderIconLayoutRule.java b/src/com/android/launcher3/folder/StackFolderIconLayoutRule.java
index 297203a..9c8c2ef 100644
--- a/src/com/android/launcher3/folder/StackFolderIconLayoutRule.java
+++ b/src/com/android/launcher3/folder/StackFolderIconLayoutRule.java
@@ -87,6 +87,11 @@
     }
 
     @Override
+    public float getIconSize() {
+        return mBaselineIconSize;
+    }
+
+    @Override
     public float scaleForItem(int index, int numItems) {
         // Scale is determined by the position of the icon in the preview.
         index = MAX_NUM_ITEMS_IN_PREVIEW - index - 1;
@@ -98,10 +103,4 @@
     public boolean clipToBackground() {
         return false;
     }
-
-    @Override
-    public List<View> getItemsToDisplay(Folder folder) {
-        List<View> items = folder.getItemsInReadingOrder();
-        return items.subList(0, Math.min(items.size(), MAX_NUM_ITEMS_IN_PREVIEW));
-    }
 }
diff --git a/src/com/android/launcher3/graphics/DragPreviewProvider.java b/src/com/android/launcher3/graphics/DragPreviewProvider.java
index bb136f7..492d853 100644
--- a/src/com/android/launcher3/graphics/DragPreviewProvider.java
+++ b/src/com/android/launcher3/graphics/DragPreviewProvider.java
@@ -29,7 +29,7 @@
 import com.android.launcher3.LauncherAppWidgetHostView;
 import com.android.launcher3.R;
 import com.android.launcher3.Workspace;
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.folder.FolderIcon;
 
 /**
@@ -138,7 +138,7 @@
     }
 
     public final void generateDragOutline(Canvas canvas) {
-        if (ProviderConfig.IS_DOGFOOD_BUILD && generatedDragOutline != null) {
+        if (FeatureFlags.IS_DOGFOOD_BUILD && generatedDragOutline != null) {
             throw new RuntimeException("Drag outline generated twice");
         }
 
diff --git a/src/com/android/launcher3/graphics/HolographicOutlineHelper.java b/src/com/android/launcher3/graphics/HolographicOutlineHelper.java
index c9873d9..b221828 100644
--- a/src/com/android/launcher3/graphics/HolographicOutlineHelper.java
+++ b/src/com/android/launcher3/graphics/HolographicOutlineHelper.java
@@ -31,7 +31,7 @@
 
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.R;
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
 
 import java.nio.ByteBuffer;
 
@@ -86,7 +86,7 @@
      * bitmap.
      */
     public void applyExpensiveOutlineWithBlur(Bitmap srcDst, Canvas srcDstCanvas) {
-        if (ProviderConfig.IS_DOGFOOD_BUILD && srcDst.getConfig() != Bitmap.Config.ALPHA_8) {
+        if (FeatureFlags.IS_DOGFOOD_BUILD && srcDst.getConfig() != Bitmap.Config.ALPHA_8) {
             throw new RuntimeException("Outline blue is only supported on alpha bitmaps");
         }
 
diff --git a/src/com/android/launcher3/logging/DumpTargetWrapper.java b/src/com/android/launcher3/logging/DumpTargetWrapper.java
new file mode 100644
index 0000000..2646a22
--- /dev/null
+++ b/src/com/android/launcher3/logging/DumpTargetWrapper.java
@@ -0,0 +1,149 @@
+/*
+ * 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.logging;
+
+import android.os.Process;
+import android.text.TextUtils;
+
+import com.android.launcher3.ItemInfo;
+import com.android.launcher3.LauncherSettings;
+import com.android.launcher3.model.nano.LauncherDumpProto;
+import com.android.launcher3.model.nano.LauncherDumpProto.ContainerType;
+import com.android.launcher3.model.nano.LauncherDumpProto.DumpTarget;
+import com.android.launcher3.model.nano.LauncherDumpProto.ItemType;
+import com.android.launcher3.model.nano.LauncherDumpProto.UserType;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * This class can be used when proto definition doesn't support nesting.
+ */
+public class DumpTargetWrapper {
+    DumpTarget node;
+    ArrayList<DumpTargetWrapper> children;
+
+    public DumpTargetWrapper() {
+        children = new ArrayList<>();
+    }
+
+    public DumpTargetWrapper(DumpTarget t) {
+        this();
+        node = t;
+    }
+
+    public DumpTargetWrapper(int containerType, int id) {
+        this();
+        node = newContainerTarget(containerType, id);
+    }
+
+    public DumpTargetWrapper(ItemInfo info) {
+        this();
+        node = newItemTarget(info);
+    }
+
+    public DumpTarget getDumpTarget() {
+        return node;
+    }
+
+    public void add(DumpTargetWrapper child) {
+        children.add(child);
+    }
+
+    public List<DumpTarget> getFlattenedList() {
+        ArrayList<DumpTarget> list = new ArrayList<>();
+        list.add(node);
+        if (!children.isEmpty()) {
+            for(DumpTargetWrapper t: children) {
+                list.addAll(t.getFlattenedList());
+            }
+            list.add(node); // add a delimiter empty object
+        }
+        return list;
+    }
+    public DumpTarget newItemTarget(ItemInfo info) {
+        DumpTarget dt = new DumpTarget();
+        dt.type = DumpTarget.Type.ITEM;
+
+        switch (info.itemType) {
+            case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
+                dt.itemType = ItemType.APP_ICON;
+                break;
+            case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
+                dt.itemType = ItemType.UNKNOWN_ITEMTYPE;
+                break;
+            case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
+                dt.itemType = ItemType.WIDGET;
+                break;
+            case LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT:
+                dt.itemType = ItemType.SHORTCUT;
+                break;
+        }
+        return dt;
+    }
+
+    public DumpTarget newContainerTarget(int type, int id) {
+        DumpTarget dt = new DumpTarget();
+        dt.type = DumpTarget.Type.CONTAINER;
+        dt.containerType = type;
+        dt.pageId = id;
+        return dt;
+    }
+
+    public static String getDumpTargetStr(DumpTarget t) {
+        if (t == null){
+            return "";
+        }
+        switch (t.type) {
+            case LauncherDumpProto.DumpTarget.Type.ITEM:
+                return getItemStr(t);
+            case LauncherDumpProto.DumpTarget.Type.CONTAINER:
+                String str = LoggerUtils.getFieldName(t.containerType, ContainerType.class);
+                if (t.containerType == ContainerType.WORKSPACE) {
+                    str += " id=" + t.pageId;
+                } else if (t.containerType == ContainerType.FOLDER) {
+                    str += " grid(" + t.gridX + "," + t.gridY+ ")";
+                }
+                return str;
+            default:
+                return "UNKNOWN TARGET TYPE";
+        }
+    }
+
+    private static String getItemStr(DumpTarget t) {
+        String typeStr = LoggerUtils.getFieldName(t.itemType, ItemType.class);
+        if (!TextUtils.isEmpty(t.packageName)) {
+            typeStr += ", package=" + t.packageName;
+        }
+        if (!TextUtils.isEmpty(t.component)) {
+            typeStr += ", component=" + t.component;
+        }
+        return typeStr + ", grid(" + t.gridX + "," + t.gridY + "), span(" + t.spanX + "," + t.spanY
+                + "), pageIdx=" + t.pageId + " user=" + t.userType;
+    }
+
+    public DumpTarget writeToDumpTarget(ItemInfo info) {
+        node.component = info.getTargetComponent() == null? "":
+                info.getTargetComponent().flattenToString();
+        node.packageName = info.getIntent() == null? "": info.getIntent().getPackage();
+        node.gridX = info.cellX;
+        node.gridY = info.cellY;
+        node.spanX = info.spanX;
+        node.spanY = info.spanY;
+        node.userType = (info.user.equals(Process.myUserHandle()))? UserType.DEFAULT : UserType.WORK;
+        return node;
+    }
+}
diff --git a/src/com/android/launcher3/logging/FileLog.java b/src/com/android/launcher3/logging/FileLog.java
index ffb41b7..4c83e9a 100644
--- a/src/com/android/launcher3/logging/FileLog.java
+++ b/src/com/android/launcher3/logging/FileLog.java
@@ -6,9 +6,8 @@
 import android.util.Log;
 import android.util.Pair;
 
-import com.android.launcher3.LauncherModel;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -40,7 +39,7 @@
     private static File sLogsDirectory = null;
 
     public static void setDir(File logsDir) {
-        if (ProviderConfig.IS_DOGFOOD_BUILD || Utilities.IS_DEBUG_DEVICE) {
+        if (FeatureFlags.IS_DOGFOOD_BUILD || Utilities.IS_DEBUG_DEVICE) {
             synchronized (DATE_FORMAT) {
                 // If the target directory changes, stop any active thread.
                 if (sHandler != null && !logsDir.equals(sLogsDirectory)) {
@@ -77,7 +76,7 @@
     }
 
     public static void print(String tag, String msg, Exception e) {
-        if (!ProviderConfig.IS_DOGFOOD_BUILD) {
+        if (!FeatureFlags.IS_DOGFOOD_BUILD) {
             return;
         }
         String out = String.format("%s %s %s", DATE_FORMAT.format(new Date()), tag, msg);
@@ -103,7 +102,7 @@
      * @param out if not null, all the persisted logs are copied to the writer.
      */
     public static void flushAll(PrintWriter out) throws InterruptedException {
-        if (!ProviderConfig.IS_DOGFOOD_BUILD) {
+        if (!FeatureFlags.IS_DOGFOOD_BUILD) {
             return;
         }
         CountDownLatch latch = new CountDownLatch(1);
@@ -136,7 +135,7 @@
 
         @Override
         public boolean handleMessage(Message msg) {
-            if (sLogsDirectory == null || !ProviderConfig.IS_DOGFOOD_BUILD) {
+            if (sLogsDirectory == null || !FeatureFlags.IS_DOGFOOD_BUILD) {
                 return true;
             }
             switch (msg.what) {
diff --git a/src/com/android/launcher3/logging/LoggerUtils.java b/src/com/android/launcher3/logging/LoggerUtils.java
index c13e8b3..499fdc7 100644
--- a/src/com/android/launcher3/logging/LoggerUtils.java
+++ b/src/com/android/launcher3/logging/LoggerUtils.java
@@ -1,5 +1,21 @@
+/*
+ * 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.logging;
 
+import android.text.TextUtils;
 import android.util.ArrayMap;
 import android.util.SparseArray;
 import android.view.View;
@@ -27,7 +43,7 @@
     private static final ArrayMap<Class, SparseArray<String>> sNameCache = new ArrayMap<>();
     private static final String UNKNOWN = "UNKNOWN";
 
-    private static String getFieldName(int value, Class c) {
+    public static String getFieldName(int value, Class c) {
         SparseArray<String> cache;
         synchronized (sNameCache) {
             cache = sNameCache.get(c);
@@ -68,8 +84,13 @@
             case Target.Type.CONTROL:
                 return getFieldName(t.controlType, ControlType.class);
             case Target.Type.CONTAINER:
-                return getFieldName(t.containerType, ContainerType.class)
-                        + " id=" + t.pageIndex;
+                String str = getFieldName(t.containerType, ContainerType.class);
+                if (t.containerType == ContainerType.WORKSPACE) {
+                    str += " id=" + t.pageIndex;
+                } else if (t.containerType == ContainerType.FOLDER) {
+                    str += " grid(" + t.gridX + "," + t.gridY+ ")";
+                }
+                return str;
             default:
                 return "UNKNOWN TARGET TYPE";
         }
@@ -86,10 +107,8 @@
         if (t.intentHash != 0) {
             typeStr += ", intentHash=" + t.intentHash;
         }
-        if (t.spanX != 0) {
-            typeStr += ", spanX=" + t.spanX;
-        }
-        return typeStr + ", grid=(" + t.gridX + "," + t.gridY + "), id=" + t.pageIndex;
+        return typeStr + ", grid(" + t.gridX + "," + t.gridY + "), span(" + t.spanX + "," + t.spanY
+                + "), pageIdx=" + t.pageIndex;
     }
 
     public static Target newItemTarget(View v) {
diff --git a/src/com/android/launcher3/logging/UserEventDispatcher.java b/src/com/android/launcher3/logging/UserEventDispatcher.java
index 90e4531..04ca247 100644
--- a/src/com/android/launcher3/logging/UserEventDispatcher.java
+++ b/src/com/android/launcher3/logging/UserEventDispatcher.java
@@ -29,8 +29,7 @@
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.config.ProviderConfig;
-import com.android.launcher3.userevent.nano.LauncherLogProto;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.launcher3.userevent.nano.LauncherLogProto.LauncherEvent;
@@ -61,7 +60,7 @@
 
     private static final String TAG = "UserEvent";
     private static final boolean IS_VERBOSE =
-            ProviderConfig.IS_DOGFOOD_BUILD && Utilities.isPropertyEnabled(LogConfig.USEREVENT);
+            FeatureFlags.IS_DOGFOOD_BUILD && Utilities.isPropertyEnabled(LogConfig.USEREVENT);
 
     private static UserEventDispatcher sInstance;
     private static final Object LOCK = new Object();
diff --git a/src/com/android/launcher3/model/BgDataModel.java b/src/com/android/launcher3/model/BgDataModel.java
index 6b64087..930c854 100644
--- a/src/com/android/launcher3/model/BgDataModel.java
+++ b/src/com/android/launcher3/model/BgDataModel.java
@@ -24,19 +24,25 @@
 import com.android.launcher3.FolderInfo;
 import com.android.launcher3.InstallShortcutReceiver;
 import com.android.launcher3.ItemInfo;
-import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.ShortcutInfo;
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.logging.DumpTargetWrapper;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
 import com.android.launcher3.shortcuts.ShortcutInfoCompat;
 import com.android.launcher3.shortcuts.ShortcutKey;
+import com.android.launcher3.model.nano.LauncherDumpProto;
+import com.android.launcher3.model.nano.LauncherDumpProto.ContainerType;
+import com.android.launcher3.model.nano.LauncherDumpProto.DumpTarget;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.LongArrayMap;
 import com.android.launcher3.util.MultiHashMap;
+import com.google.protobuf.nano.MessageNano;
 
 import java.io.FileDescriptor;
+import java.io.FileOutputStream;
+import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -102,21 +108,31 @@
         deepShortcutMap.clear();
     }
 
-    // TODO: current dump is very cryptic and hard to understand. Make it more legible.
-    public synchronized void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
-        writer.println(prefix + "Data Model:");
-        for (int i = 0; i < workspaceScreens.size(); i++) {
-            writer.println(prefix + "\tIndex of workspaceScreens:" + workspaceScreens.get(i).toString());
+     public synchronized void dump(String prefix, FileDescriptor fd, PrintWriter writer,
+             String[] args) {
+        if (args.length > 0 && TextUtils.equals(args[0], "--proto")) {
+            dumpProto(prefix, fd, writer, args);
+            return;
         }
+        writer.println(prefix + "Data Model:");
+        writer.print(prefix + " ---- workspace screens: ");
+        for (int i = 0; i < workspaceScreens.size(); i++) {
+            writer.print(" " + workspaceScreens.get(i).toString());
+        }
+        writer.println();
+        writer.println(prefix + " ---- workspace items ");
         for (int i = 0; i < workspaceItems.size(); i++) {
             writer.println(prefix + '\t' + workspaceItems.get(i).toString());
         }
+        writer.println(prefix + " ---- appwidget items ");
         for (int i = 0; i < appWidgets.size(); i++) {
             writer.println(prefix + '\t' + appWidgets.get(i).toString());
         }
+        writer.println(prefix + " ---- folder items ");
         for (int i = 0; i< folders.size(); i++) {
             writer.println(prefix + '\t' + folders.valueAt(i).toString());
         }
+        writer.println(prefix + " ---- items id map ");
         for (int i = 0; i< itemsIdMap.size(); i++) {
             writer.println(prefix + '\t' + itemsIdMap.valueAt(i).toString());
         }
@@ -133,6 +149,88 @@
         }
     }
 
+    private synchronized void dumpProto(String prefix, FileDescriptor fd, PrintWriter writer,
+            String[] args) {
+
+        // Add top parent nodes. (L1)
+        DumpTargetWrapper hotseat = new DumpTargetWrapper(ContainerType.HOTSEAT, 0);
+        LongArrayMap<DumpTargetWrapper> workspaces = new LongArrayMap<>();
+        for (int i = 0; i < workspaceScreens.size(); i++) {
+            workspaces.put(new Long(workspaceScreens.get(i)),
+                    new DumpTargetWrapper(ContainerType.WORKSPACE, i));
+        }
+        DumpTargetWrapper dtw;
+        // Add non leaf / non top nodes (L2)
+        for (int i = 0; i < folders.size(); i++) {
+            FolderInfo fInfo = folders.valueAt(i);
+            dtw = new DumpTargetWrapper(ContainerType.FOLDER, folders.size());
+            dtw.writeToDumpTarget(fInfo);
+            for(ShortcutInfo sInfo: fInfo.contents) {
+                DumpTargetWrapper child = new DumpTargetWrapper(sInfo);
+                child.writeToDumpTarget(sInfo);
+                dtw.add(child);
+            }
+            if (fInfo.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
+                hotseat.add(dtw);
+            } else if (fInfo.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) {
+                workspaces.get(new Long(fInfo.screenId)).add(dtw);
+            }
+        }
+        // Add leaf nodes (L3): *Info
+        for (int i = 0; i < workspaceItems.size(); i++) {
+            ItemInfo info = workspaceItems.get(i);
+            if (info instanceof FolderInfo) {
+                continue;
+            }
+            dtw = new DumpTargetWrapper(info);
+            dtw.writeToDumpTarget(info);
+            if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
+                hotseat.add(dtw);
+            } else if (info.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) {
+                workspaces.get(new Long(info.screenId)).add(dtw);
+            }
+        }
+        for (int i = 0; i < appWidgets.size(); i++) {
+            ItemInfo info = appWidgets.get(i);
+            dtw = new DumpTargetWrapper(info);
+            dtw.writeToDumpTarget(info);
+            if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
+                hotseat.add(dtw);
+            } else if (info.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) {
+                workspaces.get(new Long(info.screenId)).add(dtw);
+            }
+        }
+
+
+        // Traverse target wrapper
+        ArrayList<DumpTarget> targetList = new ArrayList<>();
+        targetList.addAll(hotseat.getFlattenedList());
+        for (int i = 0; i < workspaces.size(); i++) {
+            targetList.addAll(workspaces.valueAt(i).getFlattenedList());
+        }
+
+        if (args.length > 1 && TextUtils.equals(args[1], "--debug")) {
+            for (int i = 0; i < targetList.size(); i++) {
+                writer.println(prefix + DumpTargetWrapper.getDumpTargetStr(targetList.get(i)));
+            }
+            return;
+        } else {
+            LauncherDumpProto.LauncherImpression proto = new LauncherDumpProto.LauncherImpression();
+            proto.targets = new DumpTarget[targetList.size()];
+            for (int i = 0; i < targetList.size(); i++) {
+                proto.targets[i] = targetList.get(i);
+            }
+            FileOutputStream fos = new FileOutputStream(fd);
+            try {
+
+                fos.write(MessageNano.toByteArray(proto));
+                Log.d(TAG, MessageNano.toByteArray(proto).length + "Bytes");
+            } catch (IOException e) {
+                Log.e(TAG, "Exception writing dumpsys --proto", e);
+            }
+        }
+    }
+
     public synchronized void removeItem(Context context, ItemInfo... items) {
         removeItem(context, Arrays.asList(items));
     }
@@ -142,7 +240,7 @@
             switch (item.itemType) {
                 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
                     folders.remove(item.id);
-                    if (ProviderConfig.IS_DOGFOOD_BUILD) {
+                    if (FeatureFlags.IS_DOGFOOD_BUILD) {
                         for (ItemInfo info : itemsIdMap) {
                             if (info.container == item.id) {
                                 // We are deleting a folder which still contains items that
diff --git a/src/com/android/launcher3/model/ModelWriter.java b/src/com/android/launcher3/model/ModelWriter.java
index 4931dca..032ed78 100644
--- a/src/com/android/launcher3/model/ModelWriter.java
+++ b/src/com/android/launcher3/model/ModelWriter.java
@@ -34,7 +34,7 @@
 import com.android.launcher3.ShortcutInfo;
 import com.android.launcher3.util.ContentWriter;
 import com.android.launcher3.util.ItemInfoMatcher;
-import com.android.launcher3.util.LooperExecuter;
+import com.android.launcher3.util.LooperExecutor;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -55,7 +55,7 @@
     public ModelWriter(Context context, BgDataModel dataModel, boolean hasVerticalHotseat) {
         mContext = context;
         mBgDataModel = dataModel;
-        mWorkerExecutor = new LooperExecuter(LauncherModel.getWorkerLooper());
+        mWorkerExecutor = new LooperExecutor(LauncherModel.getWorkerLooper());
         mHasVerticalHotseat = hasVerticalHotseat;
     }
 
diff --git a/src/com/android/launcher3/model/WidgetsModel.java b/src/com/android/launcher3/model/WidgetsModel.java
index 95c54f7..d2adbde 100644
--- a/src/com/android/launcher3/model/WidgetsModel.java
+++ b/src/com/android/launcher3/model/WidgetsModel.java
@@ -3,9 +3,7 @@
 
 import android.appwidget.AppWidgetProviderInfo;
 import android.content.Context;
-import android.content.Intent;
 import android.content.pm.PackageManager;
-import android.content.pm.ResolveInfo;
 import android.os.Process;
 import android.os.UserHandle;
 import android.util.Log;
@@ -19,8 +17,7 @@
 import com.android.launcher3.compat.AppWidgetManagerCompat;
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.ShortcutConfigActivityInfo;
-import com.android.launcher3.compat.UserManagerCompat;
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.MultiHashMap;
 import com.android.launcher3.util.Preconditions;
 
@@ -79,7 +76,7 @@
             }
             setWidgetsAndShortcuts(widgetsAndShortcuts, context);
         } catch (Exception e) {
-            if (!ProviderConfig.IS_DOGFOOD_BUILD && Utilities.isBinderSizeError(e)) {
+            if (!FeatureFlags.IS_DOGFOOD_BUILD && Utilities.isBinderSizeError(e)) {
                 // the returned value may be incomplete and will not be refreshed until the next
                 // time Launcher starts.
                 // TODO: after figuring out a repro step, introduce a dirty bit to check when
diff --git a/src/com/android/launcher3/popup/PopupItemView.java b/src/com/android/launcher3/popup/PopupItemView.java
index b839d99..eeece88 100644
--- a/src/com/android/launcher3/popup/PopupItemView.java
+++ b/src/com/android/launcher3/popup/PopupItemView.java
@@ -36,7 +36,7 @@
 import com.android.launcher3.LogAccelerateInterpolator;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.util.PillRevealOutlineProvider;
+import com.android.launcher3.anim.PillRevealOutlineProvider;
 
 /**
  * An abstract {@link FrameLayout} that supports animating an item's content
diff --git a/src/com/android/launcher3/provider/ImportDataTask.java b/src/com/android/launcher3/provider/ImportDataTask.java
index b0482f8..3e4cd01 100644
--- a/src/com/android/launcher3/provider/ImportDataTask.java
+++ b/src/com/android/launcher3/provider/ImportDataTask.java
@@ -37,6 +37,7 @@
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherFiles;
+import com.android.launcher3.LauncherProvider;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.LauncherSettings.Settings;
@@ -46,7 +47,6 @@
 import com.android.launcher3.Workspace;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.config.ProviderConfig;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.model.GridSizeMigrationTask;
 import com.android.launcher3.util.LongArrayMap;
@@ -112,7 +112,7 @@
             screenOps.add(ContentProviderOperation.newInsert(
                     LauncherSettings.WorkspaceScreens.CONTENT_URI).withValues(v).build());
         }
-        mContext.getContentResolver().applyBatch(ProviderConfig.AUTHORITY, screenOps);
+        mContext.getContentResolver().applyBatch(LauncherProvider.AUTHORITY, screenOps);
         importWorkspaceItems(allScreens.get(0), screenIdMap);
 
         GridSizeMigrationTask.markForMigration(mContext, mMaxGridSizeX, mMaxGridSizeY, mHotseatSize);
@@ -289,7 +289,7 @@
                 }
 
                 if (insertOperations.size() >= BATCH_INSERT_SIZE) {
-                    mContext.getContentResolver().applyBatch(ProviderConfig.AUTHORITY,
+                    mContext.getContentResolver().applyBatch(LauncherProvider.AUTHORITY,
                             insertOperations);
                     insertOperations.clear();
                 }
@@ -300,7 +300,7 @@
             throw new Exception("Insufficient data");
         }
         if (!insertOperations.isEmpty()) {
-            mContext.getContentResolver().applyBatch(ProviderConfig.AUTHORITY,
+            mContext.getContentResolver().applyBatch(LauncherProvider.AUTHORITY,
                     insertOperations);
             insertOperations.clear();
         }
@@ -319,7 +319,7 @@
             mHotseatSize = (int) hotseatItems.keyAt(hotseatItems.size() - 1) + 1;
 
             if (!insertOperations.isEmpty()) {
-                mContext.getContentResolver().applyBatch(ProviderConfig.AUTHORITY,
+                mContext.getContentResolver().applyBatch(LauncherProvider.AUTHORITY,
                         insertOperations);
             }
         }
diff --git a/src/com/android/launcher3/util/LooperExecuter.java b/src/com/android/launcher3/util/LooperExecutor.java
similarity index 94%
rename from src/com/android/launcher3/util/LooperExecuter.java
rename to src/com/android/launcher3/util/LooperExecutor.java
index 4db999b..5b7c20b 100644
--- a/src/com/android/launcher3/util/LooperExecuter.java
+++ b/src/com/android/launcher3/util/LooperExecutor.java
@@ -25,11 +25,11 @@
 /**
  * Extension of {@link AbstractExecutorService} which executed on a provided looper.
  */
-public class LooperExecuter extends AbstractExecutorService {
+public class LooperExecutor extends AbstractExecutorService {
 
     private final Handler mHandler;
 
-    public LooperExecuter(Looper looper) {
+    public LooperExecutor(Looper looper) {
         mHandler = new Handler(looper);
     }
 
diff --git a/src/com/android/launcher3/util/LooperIdleLock.java b/src/com/android/launcher3/util/LooperIdleLock.java
new file mode 100644
index 0000000..35cac14
--- /dev/null
+++ b/src/com/android/launcher3/util/LooperIdleLock.java
@@ -0,0 +1,71 @@
+/*
+ * 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.util;
+
+import android.os.Looper;
+import android.os.MessageQueue;
+
+import com.android.launcher3.Utilities;
+
+/**
+ * Utility class to block execution until the UI looper is idle.
+ */
+public class LooperIdleLock implements MessageQueue.IdleHandler, Runnable {
+
+    private final Object mLock;
+
+    private boolean mIsLocked;
+
+    public LooperIdleLock(Object lock, Looper looper) {
+        mLock = lock;
+        mIsLocked = true;
+        if (Utilities.ATLEAST_MARSHMALLOW) {
+            looper.getQueue().addIdleHandler(this);
+        } else {
+            // Looper.myQueue() only gives the current queue. Move the execution to the UI thread
+            // so that the IdleHandler is attached to the correct message queue.
+            new LooperExecutor(looper).execute(this);
+        }
+    }
+
+    @Override
+    public void run() {
+        Looper.myQueue().addIdleHandler(this);
+    }
+
+    @Override
+    public boolean queueIdle() {
+        synchronized (mLock) {
+            mIsLocked = false;
+            mLock.notify();
+        }
+        return false;
+    }
+
+    public boolean awaitLocked(long ms) {
+        if (mIsLocked) {
+            try {
+                // Just in case mFlushingWorkerThread changes but we aren't woken up,
+                // wait no longer than 1sec at a time
+                mLock.wait(ms);
+            } catch (InterruptedException ex) {
+                // Ignore
+            }
+        }
+        return mIsLocked;
+    }
+}
diff --git a/src/com/android/launcher3/util/Preconditions.java b/src/com/android/launcher3/util/Preconditions.java
index 89353e1..7ab0d31 100644
--- a/src/com/android/launcher3/util/Preconditions.java
+++ b/src/com/android/launcher3/util/Preconditions.java
@@ -19,7 +19,7 @@
 import android.os.Looper;
 
 import com.android.launcher3.LauncherModel;
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
 
 /**
  * A set of utility methods for thread verification.
@@ -27,25 +27,25 @@
 public class Preconditions {
 
     public static void assertNotNull(Object o) {
-        if (ProviderConfig.IS_DOGFOOD_BUILD && o == null) {
+        if (FeatureFlags.IS_DOGFOOD_BUILD && o == null) {
             throw new IllegalStateException();
         }
     }
 
     public static void assertWorkerThread() {
-        if (ProviderConfig.IS_DOGFOOD_BUILD && !isSameLooper(LauncherModel.getWorkerLooper())) {
+        if (FeatureFlags.IS_DOGFOOD_BUILD && !isSameLooper(LauncherModel.getWorkerLooper())) {
             throw new IllegalStateException();
         }
     }
 
     public static void assertUIThread() {
-        if (ProviderConfig.IS_DOGFOOD_BUILD && !isSameLooper(Looper.getMainLooper())) {
+        if (FeatureFlags.IS_DOGFOOD_BUILD && !isSameLooper(Looper.getMainLooper())) {
             throw new IllegalStateException();
         }
     }
 
     public static void assertNonUiThread() {
-        if (ProviderConfig.IS_DOGFOOD_BUILD && isSameLooper(Looper.getMainLooper())) {
+        if (FeatureFlags.IS_DOGFOOD_BUILD && isSameLooper(Looper.getMainLooper())) {
             throw new IllegalStateException();
         }
     }
diff --git a/src/com/android/launcher3/util/SQLiteCacheHelper.java b/src/com/android/launcher3/util/SQLiteCacheHelper.java
index 1ff6293..5344416 100644
--- a/src/com/android/launcher3/util/SQLiteCacheHelper.java
+++ b/src/com/android/launcher3/util/SQLiteCacheHelper.java
@@ -10,7 +10,7 @@
 import android.util.Log;
 
 import com.android.launcher3.Utilities;
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.config.FeatureFlags;
 
 /**
  * An extension of {@link SQLiteOpenHelper} with utility methods for a single table cache DB.
@@ -19,7 +19,7 @@
 public abstract class SQLiteCacheHelper {
     private static final String TAG = "SQLiteCacheHelper";
 
-    private static final boolean NO_ICON_CACHE = ProviderConfig.IS_DOGFOOD_BUILD &&
+    private static final boolean NO_ICON_CACHE = FeatureFlags.IS_DOGFOOD_BUILD &&
             Utilities.isPropertyEnabled(LogConfig.MEMORY_ONLY_ICON_CACHE);
 
     private final String mTableName;
diff --git a/src/com/android/launcher3/util/ViewOnDrawExecutor.java b/src/com/android/launcher3/util/ViewOnDrawExecutor.java
index 9bd2882..4cb6ca8 100644
--- a/src/com/android/launcher3/util/ViewOnDrawExecutor.java
+++ b/src/com/android/launcher3/util/ViewOnDrawExecutor.java
@@ -16,12 +16,10 @@
 
 package com.android.launcher3.util;
 
-import android.util.Log;
 import android.view.View;
 import android.view.View.OnAttachStateChangeListener;
 import android.view.ViewTreeObserver.OnDrawListener;
 
-import com.android.launcher3.DeferredHandler;
 import com.android.launcher3.Launcher;
 
 import java.util.ArrayList;
@@ -34,7 +32,7 @@
         OnAttachStateChangeListener {
 
     private final ArrayList<Runnable> mTasks = new ArrayList<>();
-    private final DeferredHandler mHandler;
+    private final Executor mExecutor;
 
     private Launcher mLauncher;
     private View mAttachedView;
@@ -43,8 +41,8 @@
     private boolean mLoadAnimationCompleted;
     private boolean mFirstDrawCompleted;
 
-    public ViewOnDrawExecutor(DeferredHandler handler) {
-        mHandler = handler;
+    public ViewOnDrawExecutor(Executor executor) {
+        mExecutor = executor;
     }
 
     public void attachTo(Launcher launcher) {
@@ -92,7 +90,7 @@
         // Post the pending tasks after both onDraw and onLoadAnimationCompleted have been called.
         if (mLoadAnimationCompleted && mFirstDrawCompleted && !mCompleted) {
             for (final Runnable r : mTasks) {
-                mHandler.post(r);
+                mExecutor.execute(r);
             }
             markCompleted();
         }
diff --git a/src_config/com/android/launcher3/config/ProviderConfig.java b/src_config/com/android/launcher3/BuildConfig.java
similarity index 67%
rename from src_config/com/android/launcher3/config/ProviderConfig.java
rename to src_config/com/android/launcher3/BuildConfig.java
index 491fa65..4df75a1 100644
--- a/src_config/com/android/launcher3/config/ProviderConfig.java
+++ b/src_config/com/android/launcher3/BuildConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 The Android Open Source Project
+ * 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.
@@ -14,11 +14,11 @@
  * limitations under the License.
  */
 
-package com.android.launcher3.config;
+package com.android.launcher3;
 
-public class ProviderConfig {
-
-    public static final String AUTHORITY = "com.android.launcher3.settings".intern();
-
-    public static final boolean IS_DOGFOOD_BUILD = true;
+/**
+ * Config file used by Make. This file is automatically generated when using gradle.
+ */
+public class BuildConfig {
+    public static final String APPLICATION_ID = "com.android.launcher3";
 }
diff --git a/src_config/com/android/launcher3/config/FeatureFlags.java b/src_flags/com/android/launcher3/config/FeatureFlags.java
similarity index 95%
rename from src_config/com/android/launcher3/config/FeatureFlags.java
rename to src_flags/com/android/launcher3/config/FeatureFlags.java
index 80eebec..87e9871 100644
--- a/src_config/com/android/launcher3/config/FeatureFlags.java
+++ b/src_flags/com/android/launcher3/config/FeatureFlags.java
@@ -20,6 +20,9 @@
  * Defines a set of flags used to control various launcher behaviors
  */
 public final class FeatureFlags {
+
+    public static final boolean IS_DOGFOOD_BUILD = true;
+
     private FeatureFlags() {}
 
     // Custom flags go below this
@@ -28,7 +31,7 @@
     public static boolean LAUNCHER3_USE_SYSTEM_DRAG_DRIVER = true;
     public static boolean LAUNCHER3_DISABLE_PINCH_TO_OVERVIEW = false;
     public static boolean LAUNCHER3_ALL_APPS_PULL_UP = true;
-    public static boolean LAUNCHER3_NEW_FOLDER_ANIMATION = false;
+    public static boolean LAUNCHER3_NEW_FOLDER_ANIMATION = true;
     // When enabled allows to use any point on the fast scrollbar to start dragging.
     public static boolean LAUNCHER3_DIRECT_SCROLL = true;
     // When enabled while all-apps open, the soft input will be set to adjust resize .
diff --git a/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.java b/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.java
index d0ba907..883be5a 100644
--- a/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.java
+++ b/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.java
@@ -10,9 +10,9 @@
 import android.util.Pair;
 
 import com.android.launcher3.ItemInfo;
+import com.android.launcher3.LauncherProvider;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.ShortcutInfo;
-import com.android.launcher3.config.ProviderConfig;
 import com.android.launcher3.util.GridOccupancy;
 import com.android.launcher3.util.LongArrayMap;
 import com.android.launcher3.util.Provider;
@@ -178,6 +178,6 @@
             v.put(LauncherSettings.WorkspaceScreens.SCREEN_RANK, i);
             ops.add(ContentProviderOperation.newInsert(uri).withValues(v).build());
         }
-        getMockContentResolver().applyBatch(ProviderConfig.AUTHORITY, ops);
+        getMockContentResolver().applyBatch(LauncherProvider.AUTHORITY, ops);
     }
 }
diff --git a/tests/src/com/android/launcher3/model/BaseModelUpdateTaskTestCase.java b/tests/src/com/android/launcher3/model/BaseModelUpdateTaskTestCase.java
index b9944db..13e0986 100644
--- a/tests/src/com/android/launcher3/model/BaseModelUpdateTaskTestCase.java
+++ b/tests/src/com/android/launcher3/model/BaseModelUpdateTaskTestCase.java
@@ -16,7 +16,6 @@
 import com.android.launcher3.AllAppsList;
 import com.android.launcher3.AppFilter;
 import com.android.launcher3.AppInfo;
-import com.android.launcher3.DeferredHandler;
 import com.android.launcher3.IconCache;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.ItemInfo;
@@ -24,7 +23,7 @@
 import com.android.launcher3.LauncherModel;
 import com.android.launcher3.LauncherModel.BaseModelUpdateTask;
 import com.android.launcher3.LauncherModel.Callbacks;
-import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.LauncherProvider;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.Provider;
 import com.android.launcher3.util.TestLauncherProvider;
@@ -36,6 +35,7 @@
 import java.lang.reflect.Field;
 import java.util.HashMap;
 import java.util.List;
+import java.util.concurrent.Executor;
 
 import static org.mockito.Matchers.anyBoolean;
 import static org.mockito.Mockito.atLeast;
@@ -64,7 +64,7 @@
     public Callbacks callbacks;
 
     public BaseModelUpdateTaskTestCase() {
-        super(TestLauncherProvider.class, ProviderConfig.AUTHORITY);
+        super(TestLauncherProvider.class, LauncherProvider.AUTHORITY);
     }
 
     @Override
@@ -102,14 +102,14 @@
         f.setAccessible(true);
         f.set(task, mockModel);
 
-        DeferredHandler mockHandler = mock(DeferredHandler.class);
-        f = BaseModelUpdateTask.class.getDeclaredField("mUiHandler");
+        Executor mockExecutor = mock(Executor.class);
+        f = BaseModelUpdateTask.class.getDeclaredField("mUiExecutor");
         f.setAccessible(true);
-        f.set(task, mockHandler);
+        f.set(task, mockExecutor);
 
         task.execute(appState, bgDataModel, allAppsList);
         ArgumentCaptor<Runnable> captor = ArgumentCaptor.forClass(Runnable.class);
-        verify(mockHandler, atLeast(0)).post(captor.capture());
+        verify(mockExecutor, atLeast(0)).execute(captor.capture());
 
         return captor.getAllValues();
     }
diff --git a/tests/src/com/android/launcher3/model/GridSizeMigrationTaskTest.java b/tests/src/com/android/launcher3/model/GridSizeMigrationTaskTest.java
index fc7fe48..fd62d36 100644
--- a/tests/src/com/android/launcher3/model/GridSizeMigrationTaskTest.java
+++ b/tests/src/com/android/launcher3/model/GridSizeMigrationTaskTest.java
@@ -1,7 +1,6 @@
 package com.android.launcher3.model;
 
 import android.content.ContentValues;
-import android.content.Context;
 import android.content.Intent;
 import android.database.Cursor;
 import android.graphics.Point;
@@ -10,9 +9,9 @@
 
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherModel;
+import com.android.launcher3.LauncherProvider;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.config.ProviderConfig;
 import com.android.launcher3.model.GridSizeMigrationTask.MultiStepMigrationTask;
 import com.android.launcher3.util.TestLauncherProvider;
 
@@ -40,7 +39,7 @@
     private InvariantDeviceProfile mIdp;
 
     public GridSizeMigrationTaskTest() {
-        super(TestLauncherProvider.class, ProviderConfig.AUTHORITY);
+        super(TestLauncherProvider.class, LauncherProvider.AUTHORITY);
     }
 
     @Override
diff --git a/tests/src/com/android/launcher3/testcomponent/RequestPinItemActivity.java b/tests/src/com/android/launcher3/testcomponent/RequestPinItemActivity.java
index c2dd225..2a031af 100644
--- a/tests/src/com/android/launcher3/testcomponent/RequestPinItemActivity.java
+++ b/tests/src/com/android/launcher3/testcomponent/RequestPinItemActivity.java
@@ -84,6 +84,6 @@
     }
 
     private void requestWidget(ComponentName cn) {
-        AppWidgetManager.getInstance(this).requestPinAppWidget(cn, mCallback);
+        AppWidgetManager.getInstance(this).requestPinAppWidget(cn, null, mCallback);
     }
 }
diff --git a/tests/src/com/android/launcher3/ui/widget/BindWidgetTest.java b/tests/src/com/android/launcher3/ui/widget/BindWidgetTest.java
index df2b662..97f7b50 100644
--- a/tests/src/com/android/launcher3/ui/widget/BindWidgetTest.java
+++ b/tests/src/com/android/launcher3/ui/widget/BindWidgetTest.java
@@ -39,13 +39,12 @@
 import com.android.launcher3.compat.PackageInstallerCompat;
 import com.android.launcher3.ui.LauncherInstrumentationTestCase;
 import com.android.launcher3.util.ContentWriter;
-import com.android.launcher3.util.LooperExecuter;
+import com.android.launcher3.util.LooperExecutor;
 import com.android.launcher3.widget.PendingAddWidgetInfo;
 import com.android.launcher3.widget.WidgetHostViewLoader;
 
 import java.util.Set;
 import java.util.concurrent.Callable;
-import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 
 /**
@@ -340,7 +339,7 @@
      * Blocks the current thread until all the jobs in the main worker thread are complete.
      */
     private void waitUntilLoaderIdle() throws Exception {
-        new LooperExecuter(LauncherModel.getWorkerLooper())
+        new LooperExecutor(LauncherModel.getWorkerLooper())
                 .submit(new Runnable() {
                     @Override
                     public void run() { }