diff --git a/Android.mk b/Android.mk
index 4cc5e42..0dc7ff1 100644
--- a/Android.mk
+++ b/Android.mk
@@ -17,6 +17,14 @@
 LOCAL_PATH := $(call my-dir)
 
 #
+# Prebuilt Java Libraries
+#
+include $(CLEAR_VARS)
+LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES := \
+    libSharedSystemUI:quickstep/libs/sysui_shared.jar
+include $(BUILD_MULTI_PREBUILT)
+
+#
 # Build rule for Launcher3 app.
 #
 include $(CLEAR_VARS)
@@ -30,7 +38,7 @@
 
 LOCAL_SRC_FILES := \
     $(call all-java-files-under, src) \
-    $(call all-java-files-under, src_config) \
+    $(call all-java-files-under, src_ui_overrides) \
     $(call all-java-files-under, src_flags) \
     $(call all-proto-files-under, protos) \
     $(call all-proto-files-under, proto_overrides)
@@ -75,7 +83,7 @@
 
 LOCAL_SRC_FILES := \
     $(call all-java-files-under, src) \
-    $(call all-java-files-under, src_config) \
+    $(call all-java-files-under, src_ui_overrides) \
     $(call all-java-files-under, go/src_flags) \
     $(call all-proto-files-under, protos) \
     $(call all-proto-files-under, proto_overrides)
@@ -112,22 +120,57 @@
 include $(BUILD_PACKAGE)
 
 #
-# Launcher proto buffer jar used for development
+# Build rule for Quickstep app.
 #
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES := $(call all-proto-files-under, protos) $(call all-proto-files-under, proto_overrides)
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_STATIC_JAVA_LIBRARIES := \
+    android-support-v4 \
+    android-support-v7-recyclerview \
+    android-support-dynamic-animation \
+    libSharedSystemUI
+
+LOCAL_SRC_FILES := \
+    $(call all-java-files-under, src) \
+    $(call all-java-files-under, quickstep/src) \
+    $(call all-java-files-under, src_flags) \
+    $(call all-proto-files-under, protos) \
+    $(call all-proto-files-under, proto_overrides)
+
+LOCAL_RESOURCE_DIR := \
+    $(LOCAL_PATH)/quickstep/res \
+    $(LOCAL_PATH)/res \
+    prebuilts/sdk/current/support/v7/recyclerview/res \
+
+LOCAL_PROGUARD_ENABLED := disabled
 
 LOCAL_PROTOC_OPTIMIZE_TYPE := nano
 LOCAL_PROTOC_FLAGS := --proto_path=$(LOCAL_PATH)/protos/ --proto_path=$(LOCAL_PATH)/proto_overrides/
 LOCAL_PROTO_JAVA_OUTPUT_PARAMS := enum_style=java
 
-LOCAL_MODULE_TAGS := optional
-LOCAL_MODULE := launcher_proto_lib
-LOCAL_IS_HOST_MODULE := true
-LOCAL_STATIC_JAVA_LIBRARIES := host-libprotobuf-java-nano
+LOCAL_AAPT_FLAGS := \
+    --auto-add-overlay \
+    --extra-packages android.support.v7.recyclerview \
 
-include $(BUILD_HOST_JAVA_LIBRARY)
+LOCAL_SDK_VERSION := system_current
+LOCAL_MIN_SDK_VERSION := 26
+LOCAL_PACKAGE_NAME := Launcher3QuickStep
+LOCAL_PRIVILEGED_MODULE := true
+LOCAL_OVERRIDES_PACKAGES := Home Launcher2 Launcher3
+
+LOCAL_FULL_LIBS_MANIFEST_FILES := \
+    $(LOCAL_PATH)/AndroidManifest.xml \
+    $(LOCAL_PATH)/AndroidManifest-common.xml
+
+LOCAL_MANIFEST_FILE := quickstep/AndroidManifest.xml
+LOCAL_JACK_COVERAGE_INCLUDE_FILTER := com.android.launcher3.*
+
+include $(BUILD_PACKAGE)
+
+
+
 
 # ==================================================
 include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 23bddf6..6ef7828 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -112,53 +112,5 @@
             android:writePermission="com.android.launcher3.permission.WRITE_SETTINGS"
             android:readPermission="com.android.launcher3.permission.READ_SETTINGS" />
 
-        <!-- ENABLE_FOR_TESTING
-
-        <activity
-            android:name="com.android.launcher3.testing.LauncherExtension"
-            android:launchMode="singleTask"
-            android:clearTaskOnLaunch="true"
-            android:stateNotNeeded="true"
-            android:theme="@style/Theme"
-            android:windowSoftInputMode="adjustPan"
-            android:screenOrientation="nosensor"
-            >
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.HOME" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.MONKEY"/>
-            </intent-filter>
-        </activity>
-
-        <activity
-            android:name="com.android.launcher3.testing.MemoryDumpActivity"
-            android:theme="@android:style/Theme.NoDisplay"
-            android:label="* HPROF"
-            android:excludeFromRecents="true"
-            android:icon="@drawable/ic_launcher_home"
-            >
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
-        </activity>
-
-        <activity
-            android:name="com.android.launcher3.testing.ToggleWeightWatcher"
-            android:label="Show Mem"
-            android:icon="@drawable/ic_launcher_home">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
-        </activity>
-
-        <service android:name="com.android.launcher3.testing.MemoryTracker" />
-
-        -->
-
     </application>
 </manifest>
diff --git a/build.gradle b/build.gradle
index 2376146..61c05e5 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.1'
+        classpath 'com.android.tools.build:gradle:2.3.3'
         classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.0'
     }
 }
@@ -40,7 +40,20 @@
             applicationId 'com.android.launcher3'
             testApplicationId 'com.android.launcher3.tests'
         }
+
+        quickstep {
+            applicationId 'com.android.launcher3'
+            testApplicationId 'com.android.launcher3.tests'
+        }
     }
+
+    // Disable release builds for now
+    android.variantFilter { variant ->
+        if (variant.buildType.name.endsWith('release')) {
+            variant.setIgnore(true);
+        }
+    }
+
     sourceSets {
         main {
             res.srcDirs = ['res']
@@ -52,31 +65,34 @@
             }
         }
 
+        debug {
+            manifest.srcFile "AndroidManifest.xml"
+        }
+
         androidTest {
             res.srcDirs = ['tests/res']
             java.srcDirs = ['tests/src']
             manifest.srcFile "tests/AndroidManifest-common.xml"
         }
 
-        aosp {
-            java.srcDirs = ['src_flags']
-            manifest.srcFile "AndroidManifest.xml"
+        androidTestDebug {
+            manifest.srcFile "tests/AndroidManifest.xml"
         }
 
-        aospAndroidTest {
-            manifest.srcFile "tests/AndroidManifest.xml"
+        aosp {
+            java.srcDirs = ['src_flags', "src_ui_overrides"]
         }
 
         l3go {
             res.srcDirs = ['go/res']
-            java.srcDirs = ['go/src_flags']
-            // Note: we are using the Launcher3 manifest here because the gradle manifest-merger uses
-            // different attributes than the build system.
-            manifest.srcFile "AndroidManifest.xml"
+            java.srcDirs = ['go/src_flags', "src_ui_overrides"]
+            manifest.srcFile "go/AndroidManifest.xml"
         }
 
-        l3goAndroidTest {
-            manifest.srcFile "tests/AndroidManifest.xml"
+        quickstep {
+            res.srcDirs = ['quickstep/res']
+            java.srcDirs = ['src_flags', 'quickstep/src']
+            manifest.srcFile "quickstep/AndroidManifest.xml"
         }
     }
 }
@@ -93,11 +109,14 @@
     compile "com.android.support:recyclerview-v7:${SUPPORT_LIBS_VERSION}"
     compile 'com.google.protobuf.nano:protobuf-javanano:3.0.0-alpha-7'
 
+    quickstepCompile fileTree(dir: "quickstep/libs", include: 'sysui_shared.jar')
+
     testCompile 'junit:junit:4.12'
     androidTestCompile "org.mockito:mockito-core:1.9.5"
     androidTestCompile 'com.google.dexmaker:dexmaker:1.2'
     androidTestCompile 'com.google.dexmaker:dexmaker-mockito:1.2'
-    androidTestCompile 'com.android.support.test:runner:0.5'
+    androidTestCompile 'com.android.support.test:runner:1.0.0'
+    androidTestCompile 'com.android.support.test:rules:1.0.0'
     androidTestCompile 'com.android.support.test.uiautomator:uiautomator-v18:2.1.2'
     androidTestCompile "com.android.support:support-annotations:${SUPPORT_LIBS_VERSION}"
 }
diff --git a/protos/launcher_log.proto b/protos/launcher_log.proto
index 0bbec18..de74fce 100644
--- a/protos/launcher_log.proto
+++ b/protos/launcher_log.proto
@@ -132,7 +132,9 @@
                   // not using the HOME_INTENT
     CANCEL = 3;   // Indicates that a confirmation screen was cancelled
     CONFIRM = 4;  // Indicates thata confirmation screen was accepted
+    STOP = 5;     // Indicates onStop() was called (screen time out, power off)
   }
+
   optional Type type = 1;
   optional Touch touch = 2;
   optional Direction dir = 3;
diff --git a/quickstep/AndroidManifest.xml b/quickstep/AndroidManifest.xml
new file mode 100644
index 0000000..08c740c4
--- /dev/null
+++ b/quickstep/AndroidManifest.xml
@@ -0,0 +1,47 @@
+<?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.
+*/
+-->
+<manifest
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.launcher3" >
+
+    <uses-sdk android:targetSdkVersion="23" android:minSdkVersion="21"/>
+
+    <application
+        android:backupAgent="com.android.launcher3.LauncherBackupAgent"
+        android:fullBackupOnly="true"
+        android:fullBackupContent="@xml/backupscheme"
+        android:hardwareAccelerated="true"
+        android:icon="@drawable/ic_launcher_home"
+        android:label="@string/derived_app_name"
+        android:theme="@style/LauncherTheme"
+        android:largeHeap="@bool/config_largeHeap"
+        android:restoreAnyVersion="true"
+        android:supportsRtl="true" >
+
+        <service android:name="com.android.quickstep.TouchInteractionService"
+            android:exported="true" />
+
+        <!-- STOPSHIP: Change exported to false once all the integration is complete.
+        It is set to true so that the activity can be started from command line -->
+        <activity android:name="com.android.quickstep.RecentsActivity"
+            android:exported="true" />
+    </application>
+
+</manifest>
diff --git a/quickstep/libs/sysui_shared.jar b/quickstep/libs/sysui_shared.jar
new file mode 100644
index 0000000..9069698
--- /dev/null
+++ b/quickstep/libs/sysui_shared.jar
Binary files differ
diff --git a/quickstep/res/drawable/task_thumbnail_background.xml b/quickstep/res/drawable/task_thumbnail_background.xml
new file mode 100644
index 0000000..603380e
--- /dev/null
+++ b/quickstep/res/drawable/task_thumbnail_background.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
+    <solid android:color="#FF000000" />
+    <corners android:radius="2dp" />
+</shape>
diff --git a/quickstep/res/layout/overview_panel.xml b/quickstep/res/layout/overview_panel.xml
new file mode 100644
index 0000000..22f014a
--- /dev/null
+++ b/quickstep/res/layout/overview_panel.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<com.android.quickstep.RecentsView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:theme="@style/HomeScreenElementTheme"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:clipChildren="false"
+    android:clipToPadding="false"
+    android:alpha="0.0"
+    android:visibility="invisible" />
\ No newline at end of file
diff --git a/quickstep/res/layout/task.xml b/quickstep/res/layout/task.xml
new file mode 100644
index 0000000..839d934
--- /dev/null
+++ b/quickstep/res/layout/task.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<com.android.quickstep.TaskView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <com.android.quickstep.TaskThumbnailView
+        android:id="@+id/snapshot"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_marginTop="@dimen/task_thumbnail_top_margin"
+        android:scaleType="matrix"
+        android:background="@drawable/task_thumbnail_background"
+        android:elevation="4dp" />
+    <ImageView
+        android:id="@+id/icon"
+        android:layout_width="@dimen/task_thumbnail_icon_size"
+        android:layout_height="@dimen/task_thumbnail_icon_size"
+        android:layout_gravity="top|center_horizontal"
+        android:elevation="5dp"/>
+</com.android.quickstep.TaskView>
\ No newline at end of file
diff --git a/quickstep/res/values/dimens.xml b/quickstep/res/values/dimens.xml
new file mode 100644
index 0000000..4f85957
--- /dev/null
+++ b/quickstep/res/values/dimens.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<resources>
+
+    <dimen name="task_thumbnail_top_margin">24dp</dimen>
+    <dimen name="task_thumbnail_icon_size">48dp</dimen>
+
+    <dimen name="quickstep_fling_threshold_velocity">500dp</dimen>
+    <dimen name="quickstep_fling_min_velocity">250dp</dimen>
+
+</resources>
diff --git a/quickstep/res/values/strings.xml b/quickstep/res/values/strings.xml
new file mode 100644
index 0000000..ef61226
--- /dev/null
+++ b/quickstep/res/values/strings.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+* Copyright (C) 2017 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+-->
+<resources>
+
+    <!-- Application name -->
+    <string name="derived_app_name" translatable="false">Quickstep</string>
+</resources>
\ No newline at end of file
diff --git a/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java b/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java
new file mode 100644
index 0000000..1176034
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java
@@ -0,0 +1,60 @@
+/*
+ * 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.uioverrides;
+
+import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
+
+import android.view.View;
+
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
+import com.android.quickstep.RecentsView;
+
+/**
+ * Definition for overview state
+ */
+public class OverviewState extends LauncherState {
+
+    private static final int STATE_FLAGS = FLAG_SHOW_SCRIM | FLAG_MULTI_PAGE;
+
+    public OverviewState(int id) {
+        super(id, ContainerType.WORKSPACE, OVERVIEW_TRANSITION_MS, 1f, STATE_FLAGS);
+    }
+
+    @Override
+    public float[] getWorkspaceScaleAndTranslation(Launcher launcher) {
+        // TODO: Find a better transition
+        return new float[] {0f, 0};
+    }
+
+    @Override
+    public void onStateEnabled(Launcher launcher) {
+        RecentsView rv = launcher.getOverviewPanel();
+        rv.setOverviewStateEnabled(true);
+    }
+
+    @Override
+    public void onStateDisabled(Launcher launcher) {
+        RecentsView rv = launcher.getOverviewPanel();
+        rv.setOverviewStateEnabled(false);
+    }
+
+    @Override
+    public View getFinalFocus(Launcher launcher) {
+        return launcher.getOverviewPanel();
+    }
+}
diff --git a/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java b/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
new file mode 100644
index 0000000..da1eff9
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
@@ -0,0 +1,53 @@
+/*
+ * 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.uioverrides;
+
+import static com.android.launcher3.WorkspaceStateTransitionAnimation.NO_ANIM_PROPERTY_SETTER;
+
+import android.animation.AnimatorSet;
+
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.LauncherStateManager.AnimationConfig;
+import com.android.launcher3.LauncherStateManager.StateHandler;
+import com.android.launcher3.WorkspaceStateTransitionAnimation.AnimatedPropertySetter;
+import com.android.launcher3.WorkspaceStateTransitionAnimation.PropertySetter;
+import com.android.launcher3.anim.AnimationLayerSet;
+
+public class RecentsViewStateController implements StateHandler {
+
+    private final Launcher mLauncher;
+
+    public RecentsViewStateController(Launcher launcher) {
+        mLauncher = launcher;
+    }
+
+    @Override
+    public void setState(LauncherState state) {
+        setState(state, NO_ANIM_PROPERTY_SETTER);
+    }
+
+    @Override
+    public void setStateWithAnimation(LauncherState toState, AnimationLayerSet layerViews,
+            AnimatorSet anim, AnimationConfig config) {
+        setState(toState, new AnimatedPropertySetter(config.duration, layerViews, anim));
+    }
+
+    private void setState(LauncherState state, PropertySetter setter) {
+        setter.setViewAlpha(null, mLauncher.getOverviewPanel(),
+                state == LauncherState.OVERVIEW ? 1 : 0);
+    }
+}
diff --git a/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java b/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java
new file mode 100644
index 0000000..20abdc7
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/uioverrides/UiFactory.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.uioverrides;
+
+import android.content.Intent;
+import android.view.View.AccessibilityDelegate;
+import android.widget.PopupMenu;
+import android.widget.Toast;
+
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherStateManager.StateHandler;
+import com.android.launcher3.R;
+import com.android.launcher3.VerticalSwipeController;
+import com.android.launcher3.util.TouchController;
+import com.android.launcher3.widget.WidgetsFullSheet;
+
+public class UiFactory {
+
+    public static TouchController[] createTouchControllers(Launcher launcher) {
+        return new TouchController[] {new VerticalSwipeController(launcher)};
+    }
+
+    public static AccessibilityDelegate newPageIndicatorAccessibilityDelegate() {
+        return null;
+    }
+
+    public static StateHandler[] getStateHandler(Launcher launcher) {
+        return new StateHandler[] {
+                launcher.getAllAppsController(), launcher.getWorkspace(),
+                new RecentsViewStateController(launcher)};
+    }
+
+    public static void onWorkspaceLongPress(Launcher launcher) {
+        PopupMenu menu = new PopupMenu(launcher, launcher.getWorkspace().getPageIndicator());
+        menu.getMenu().add(R.string.wallpaper_button_text).setOnMenuItemClickListener((i) -> {
+            launcher.onClickWallpaperPicker(null);
+            return true;
+        });
+        menu.getMenu().add(R.string.widget_button_text).setOnMenuItemClickListener((i) -> {
+            if (launcher.getPackageManager().isSafeMode()) {
+                Toast.makeText(launcher, R.string.safemode_widget_error, Toast.LENGTH_SHORT).show();
+            } else {
+                WidgetsFullSheet.show(launcher, true /* animated */);
+            }
+            return true;
+        });
+        if (launcher.hasSettings()) {
+            menu.getMenu().add(R.string.settings_button_text).setOnMenuItemClickListener((i) -> {
+                launcher.startActivity(new Intent(Intent.ACTION_APPLICATION_PREFERENCES)
+                        .setPackage(launcher.getPackageName())
+                        .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
+                return true;
+            });
+        }
+        menu.show();
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/AnimatedFloat.java b/quickstep/src/com/android/quickstep/AnimatedFloat.java
new file mode 100644
index 0000000..1f6781e
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/AnimatedFloat.java
@@ -0,0 +1,79 @@
+/*
+ * 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.quickstep;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.ObjectAnimator;
+import android.util.FloatProperty;
+
+/**
+ * A mutable float which allows animating the value
+ */
+public class AnimatedFloat {
+
+    public static FloatProperty<AnimatedFloat> VALUE = new FloatProperty<AnimatedFloat>("value") {
+        @Override
+        public void setValue(AnimatedFloat obj, float v) {
+            obj.updateValue(v);
+        }
+
+        @Override
+        public Float get(AnimatedFloat obj) {
+            return obj.value;
+        }
+    };
+
+    private final Runnable mUpdateCallback;
+    private ObjectAnimator mValueAnimator;
+
+    public float value;
+
+    public AnimatedFloat(Runnable updateCallback) {
+        mUpdateCallback = updateCallback;
+    }
+
+    public ObjectAnimator animateToValue(float v) {
+        if (mValueAnimator != null) {
+            mValueAnimator.cancel();
+        }
+        mValueAnimator = ObjectAnimator.ofFloat(this, VALUE, v);
+        mValueAnimator.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationEnd(Animator animator) {
+                if (mValueAnimator == animator) {
+                    mValueAnimator = null;
+                }
+            }
+        });
+        return mValueAnimator;
+    }
+
+    /**
+     * Changes the value and calls the callback.
+     * Note that the value can be directly accessed as well to avoid notifying the callback.
+     */
+    public void updateValue(float v) {
+        if (Float.compare(v, value) != 0) {
+            value = v;
+            mUpdateCallback.run();
+        }
+    }
+
+    public ObjectAnimator getCurrentAnimation() {
+        return mValueAnimator;
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/MotionEventQueue.java b/quickstep/src/com/android/quickstep/MotionEventQueue.java
new file mode 100644
index 0000000..e3c3a1b
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/MotionEventQueue.java
@@ -0,0 +1,93 @@
+/*
+ * 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.quickstep;
+
+import static android.view.MotionEvent.ACTION_CANCEL;
+import static android.view.MotionEvent.ACTION_MOVE;
+
+import android.view.Choreographer;
+import android.view.MotionEvent;
+
+import com.android.systemui.shared.system.ChoreographerCompat;
+
+import java.util.ArrayList;
+import java.util.function.Consumer;
+
+/**
+ * Helper class for batching input events
+ */
+public class MotionEventQueue implements Runnable {
+
+    // We use two arrays and swap the current index when one array is being consumed
+    private final EventArray[] mArrays = new EventArray[] {new EventArray(), new EventArray()};
+    private int mCurrentIndex = 0;
+
+    private final Choreographer mChoreographer;
+    private final Consumer<MotionEvent> mConsumer;
+
+    public MotionEventQueue(Choreographer choreographer, Consumer<MotionEvent> consumer) {
+        mChoreographer = choreographer;
+        mConsumer = consumer;
+    }
+
+    public void queue(MotionEvent event) {
+        synchronized (mArrays) {
+            EventArray array = mArrays[mCurrentIndex];
+            if (array.isEmpty()) {
+                ChoreographerCompat.postInputFrame(mChoreographer, this);
+            }
+
+            int eventAction = event.getAction();
+            if (eventAction == ACTION_MOVE && array.lastEventAction == ACTION_MOVE) {
+                // Replace and recycle the last event
+                array.set(array.size() - 1, event).recycle();
+            } else {
+                array.add(event);
+                array.lastEventAction = eventAction;
+            }
+        }
+    }
+
+    @Override
+    public void run() {
+        EventArray array = swapAndGetCurrentArray();
+        int size = array.size();
+        for (int i = 0; i < size; i++) {
+            MotionEvent event = array.get(i);
+            mConsumer.accept(event);
+            event.recycle();
+        }
+        array.clear();
+        array.lastEventAction = ACTION_CANCEL;
+    }
+
+    private EventArray swapAndGetCurrentArray() {
+        synchronized (mArrays) {
+            EventArray current = mArrays[mCurrentIndex];
+            mCurrentIndex = mCurrentIndex ^ 1;
+            return current;
+        }
+    }
+
+    private static class EventArray extends ArrayList<MotionEvent> {
+
+        public int lastEventAction = ACTION_CANCEL;
+
+        public EventArray() {
+            super(4);
+        }
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/MultiStateCallback.java b/quickstep/src/com/android/quickstep/MultiStateCallback.java
new file mode 100644
index 0000000..cca2729
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/MultiStateCallback.java
@@ -0,0 +1,58 @@
+/*
+ * 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.quickstep;
+
+import android.util.SparseArray;
+
+/**
+ * Utility class to help manage multiple callbacks based on different states.
+ */
+public class MultiStateCallback {
+
+    private final SparseArray<Runnable> mCallbacks = new SparseArray<>();
+
+    private int mState = 0;
+
+    /**
+     * Adds the provided state flags to the global state and executes any callbacks as a result.
+     * @param stateFlag
+     */
+    public void setState(int stateFlag) {
+        mState = mState | stateFlag;
+
+        int count = mCallbacks.size();
+        for (int i = 0; i < count; i++) {
+            int state = mCallbacks.keyAt(i);
+
+            if ((mState & state) == state) {
+                Runnable callback = mCallbacks.valueAt(i);
+                if (callback != null) {
+                    // Set the callback to null, so that it does not run again.
+                    mCallbacks.setValueAt(i, null);
+                    callback.run();
+                }
+            }
+        }
+    }
+
+    /**
+     * Sets the callbacks to be run when the provided states are enabled.
+     * The callback is only run once.
+     */
+    public void addCallback(int stateMask, Runnable callback) {
+        mCallbacks.put(stateMask, callback);
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/NavBarSwipeInteractionHandler.java b/quickstep/src/com/android/quickstep/NavBarSwipeInteractionHandler.java
new file mode 100644
index 0000000..e03a2ff
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/NavBarSwipeInteractionHandler.java
@@ -0,0 +1,320 @@
+/*
+ * 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.quickstep;
+
+import android.animation.Animator;
+import android.animation.ObjectAnimator;
+import android.animation.RectEvaluator;
+import android.annotation.TargetApi;
+import android.app.ActivityManager.RunningTaskInfo;
+import android.app.ActivityOptions;
+import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Rect;
+import android.os.Build;
+import android.os.Handler;
+import android.os.UserHandle;
+import android.support.annotation.UiThread;
+import android.view.View;
+import android.view.ViewTreeObserver.OnPreDrawListener;
+
+import com.android.launcher3.AbstractFloatingView;
+import com.android.launcher3.Hotseat;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.R;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.anim.AnimationSuccessListener;
+import com.android.launcher3.anim.Interpolators;
+import com.android.launcher3.dragndrop.DragLayer;
+import com.android.launcher3.states.InternalStateHandler;
+import com.android.systemui.shared.recents.model.RecentsTaskLoadPlan;
+import com.android.systemui.shared.recents.model.Task;
+import com.android.systemui.shared.recents.model.Task.TaskKey;
+import com.android.systemui.shared.system.ActivityManagerWrapper;
+import com.android.systemui.shared.system.WindowManagerWrapper;
+
+@TargetApi(Build.VERSION_CODES.O)
+public class NavBarSwipeInteractionHandler extends InternalStateHandler {
+
+    private static final int STATE_LAUNCHER_READY = 1 << 0;
+    private static final int STATE_RECENTS_DELAY_COMPLETE = 1 << 1;
+    private static final int STATE_LOAD_PLAN_READY = 1 << 2;
+    private static final int STATE_RECENTS_FULLY_VISIBLE = 1 << 3;
+    private static final int STATE_ACTIVITY_MULTIPLIER_COMPLETE = 1 << 4;
+    private static final int STATE_SCALED_SNAPSHOT_RECENTS = 1 << 5;
+    private static final int STATE_SCALED_SNAPSHOT_APP = 1 << 6;
+
+    private static final long RECENTS_VIEW_VISIBILITY_DELAY = 120;
+    private static final long RECENTS_VIEW_VISIBILITY_DURATION = 150;
+    private static final long DEFAULT_SWIPE_DURATION = 200;
+
+    // Ideal velocity for a smooth transition
+    private static final float PIXEL_PER_MS = 2f;
+
+    private static final float MIN_PROGRESS_FOR_OVERVIEW = 0.5f;
+
+    private final Rect mStableInsets = new Rect();
+    private final Rect mSourceRect = new Rect();
+    private final Rect mTargetRect = new Rect();
+    private final Rect mCurrentRect = new Rect();
+    private final RectEvaluator mRectEvaluator = new RectEvaluator(mCurrentRect);
+
+    // Shift in the range of [0, 1].
+    // 0 => preview snapShot is completely visible, and hotseat is completely translated down
+    // 1 => preview snapShot is completely aligned with the recents view and hotseat is completely
+    // visible.
+    private final AnimatedFloat mCurrentShift = new AnimatedFloat(this::updateFinalShift);
+
+    // Activity multiplier in the range of [0, 1]. When the activity becomes visible, this is
+    // animated to 1, so allow for a smooth transition.
+    private final AnimatedFloat mActivityMultiplier = new AnimatedFloat(this::updateFinalShift);
+
+    private final int mRunningTaskId;
+    private final Context mContext;
+
+    private final MultiStateCallback mStateCallback;
+
+    private Launcher mLauncher;
+    private SnapshotDragView mDragView;
+    private RecentsView mRecentsView;
+    private Hotseat mHotseat;
+    private RecentsTaskLoadPlan mLoadPlan;
+
+    private boolean mLauncherReady;
+    private boolean mTouchEndHandled;
+    private float mCurrentDisplacement;
+
+    private Bitmap mTaskSnapshot;
+
+    NavBarSwipeInteractionHandler(RunningTaskInfo runningTaskInfo, Context context) {
+        mRunningTaskId = runningTaskInfo.id;
+        mContext = context;
+        WindowManagerWrapper.getInstance().getStableInsets(mStableInsets);
+
+        // Build the state callback
+        mStateCallback = new MultiStateCallback();
+        mStateCallback.addCallback(STATE_LAUNCHER_READY, this::onLauncherReady);
+        mStateCallback.addCallback(STATE_LOAD_PLAN_READY | STATE_RECENTS_DELAY_COMPLETE,
+                this::setTaskPlanToUi);
+        mStateCallback.addCallback(STATE_SCALED_SNAPSHOT_APP, this::resumeLastTask);
+        mStateCallback.addCallback(STATE_RECENTS_FULLY_VISIBLE | STATE_SCALED_SNAPSHOT_RECENTS
+                | STATE_ACTIVITY_MULTIPLIER_COMPLETE,
+                this::onAnimationToLauncherComplete);
+        mStateCallback.addCallback(STATE_LAUNCHER_READY | STATE_SCALED_SNAPSHOT_APP,
+                this::cleanupLauncher);
+    }
+
+    private void onLauncherReady() {
+        mLauncherReady = true;
+        executeFrameUpdate();
+
+        // Wait for some time before loading recents so that the first frame is fast
+        new Handler().postDelayed(() -> mStateCallback.setState(STATE_RECENTS_DELAY_COMPLETE),
+                RECENTS_VIEW_VISIBILITY_DELAY);
+
+        long duration = Math.min(DEFAULT_SWIPE_DURATION,
+                Math.max((long) (-mCurrentDisplacement / PIXEL_PER_MS), 0));
+        if (mCurrentShift.getCurrentAnimation() != null) {
+            ObjectAnimator anim = mCurrentShift.getCurrentAnimation();
+            long theirDuration = anim.getDuration() - anim.getCurrentPlayTime();
+
+            // TODO: Find a better heuristic
+            duration = (duration + theirDuration) / 2;
+        }
+        ObjectAnimator anim = mActivityMultiplier.animateToValue(1)
+                .setDuration(duration);
+        anim.addListener(new AnimationSuccessListener() {
+            @Override
+            public void onAnimationSuccess(Animator animator) {
+                mStateCallback.setState(STATE_ACTIVITY_MULTIPLIER_COMPLETE);
+            }
+        });
+        anim.start();
+    }
+
+    public void setTaskSnapshot(Bitmap taskSnapshot) {
+        mTaskSnapshot = taskSnapshot;
+    }
+
+    @Override
+    public void onLauncherResume() {
+        mDragView.getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {
+            @Override
+            public boolean onPreDraw() {
+                mDragView.getViewTreeObserver().removeOnPreDrawListener(this);
+                mStateCallback.setState(STATE_LAUNCHER_READY);
+                return true;
+            }
+        });
+    }
+
+    @Override
+    protected void init(Launcher launcher, boolean alreadyOnHome) {
+        AbstractFloatingView.closeAllOpenViews(launcher, alreadyOnHome);
+        launcher.getStateManager().goToState(LauncherState.OVERVIEW, alreadyOnHome);
+
+        mLauncher = launcher;
+        mDragView = new SnapshotDragView(mLauncher, mTaskSnapshot);
+        mLauncher.getDragLayer().addView(mDragView);
+        mDragView.setPivotX(0);
+        mDragView.setPivotY(0);
+        mRecentsView = mLauncher.getOverviewPanel();
+        mHotseat = mLauncher.getHotseat();
+
+        // Optimization
+        mLauncher.getAppsView().setVisibility(View.GONE);
+        mRecentsView.setVisibility(View.GONE);
+    }
+
+    @UiThread
+    public void updateDisplacement(float displacement) {
+        mCurrentDisplacement = displacement;
+        executeFrameUpdate();
+    }
+
+    private void executeFrameUpdate() {
+        if (mLauncherReady) {
+            final float displacement = -mCurrentDisplacement;
+            int hotseatHeight = mHotseat.getHeight();
+            float translation = Utilities.boundToRange(displacement, 0, hotseatHeight);
+            float shift = hotseatHeight == 0 ? 0 : translation / hotseatHeight;
+            mCurrentShift.updateValue(shift);
+        }
+    }
+
+    @UiThread
+    private void updateFinalShift() {
+        if (!mLauncherReady) {
+            return;
+        }
+
+        if (mTargetRect.isEmpty()) {
+            DragLayer dl = mLauncher.getDragLayer();
+            mSourceRect.set(0, 0, dl.getWidth(), dl.getHeight());
+            Rect targetPadding = RecentsView.getPadding(mLauncher);
+            Rect insets = dl.getInsets();
+            mTargetRect.set(
+                    targetPadding.left + insets.left,
+                    targetPadding.top + insets.top,
+                    mSourceRect.right - targetPadding.right - insets.right,
+                    mSourceRect.bottom - targetPadding.bottom - insets.bottom);
+            mTargetRect.top += mLauncher.getResources()
+                    .getDimensionPixelSize(R.dimen.task_thumbnail_top_margin);
+        }
+
+        float shift = mCurrentShift.value * mActivityMultiplier.value;
+        int hotseatHeight = mHotseat.getHeight();
+
+        mHotseat.setTranslationY((1 - shift) * hotseatHeight);
+
+        mRectEvaluator.evaluate(shift, mSourceRect, mTargetRect);
+
+        float scale = (float) mCurrentRect.width() / mSourceRect.width();
+        mDragView.setTranslationX(mCurrentRect.left - mStableInsets.left * scale * shift);
+        mDragView.setTranslationY(mCurrentRect.top - mStableInsets.top * scale * shift);
+        mDragView.setScaleX(scale);
+        mDragView.setScaleY(scale);
+        mDragView.getViewBounds().setClipTop((int) (mStableInsets.top * shift));
+        mDragView.getViewBounds().setClipBottom((int) (mStableInsets.bottom * shift));
+    }
+
+    @UiThread
+    public void setRecentsTaskLoadPlan(RecentsTaskLoadPlan loadPlan) {
+        mLoadPlan = loadPlan;
+        mStateCallback.setState(STATE_LOAD_PLAN_READY);
+    }
+
+    private void setTaskPlanToUi() {
+        mRecentsView.update(mLoadPlan);
+        mRecentsView.setVisibility(View.VISIBLE);
+
+        // Animate alpha
+        mRecentsView.setAlpha(0);
+        mRecentsView.animate().alpha(1).setDuration(RECENTS_VIEW_VISIBILITY_DURATION)
+                .withEndAction(() -> mStateCallback.setState(STATE_RECENTS_FULLY_VISIBLE));
+    }
+
+    @UiThread
+    public void endTouch(float endVelocity) {
+        if (mTouchEndHandled) {
+            return;
+        }
+        mTouchEndHandled = true;
+
+        Resources res = mContext.getResources();
+        float flingThreshold = res.getDimension(R.dimen.quickstep_fling_threshold_velocity);
+        boolean isFling = Math.abs(endVelocity) > flingThreshold;
+
+        long duration = DEFAULT_SWIPE_DURATION;
+        final float endShift;
+        if (!isFling) {
+            endShift = mCurrentShift.value >= MIN_PROGRESS_FOR_OVERVIEW ? 1 : 0;
+        } else {
+            endShift = endVelocity < 0 ? 1 : 0;
+            float minFlingVelocity = res.getDimension(R.dimen.quickstep_fling_min_velocity);
+            if (Math.abs(endVelocity) > minFlingVelocity && mLauncherReady) {
+                float distanceToTravel = (endShift - mCurrentShift.value) * mHotseat.getHeight();
+
+                // we want the page's snap velocity to approximately match the velocity at
+                // which the user flings, so we scale the duration by a value near to the
+                // derivative of the scroll interpolator at zero, ie. 5.
+                duration = 5 * Math.round(1000 * Math.abs(distanceToTravel / endVelocity));
+            }
+        }
+
+        ObjectAnimator anim = mCurrentShift.animateToValue(endShift).setDuration(duration);
+        anim.setInterpolator(Interpolators.SCROLL);
+        anim.addListener(new AnimationSuccessListener() {
+            @Override
+            public void onAnimationSuccess(Animator animator) {
+                mStateCallback.setState((Float.compare(mCurrentShift.value, 0) == 0)
+                        ? STATE_SCALED_SNAPSHOT_APP : STATE_SCALED_SNAPSHOT_RECENTS);
+            }
+        });
+        anim.start();
+    }
+
+    @UiThread
+    private void resumeLastTask() {
+        TaskKey key = null;
+        if (mLoadPlan != null) {
+            Task task = mLoadPlan.getTaskStack().findTaskWithId(mRunningTaskId);
+            if (task != null) {
+                key = task.key;
+            }
+        }
+
+        if (key == null) {
+            // TODO: We need a better way for this
+            key = new TaskKey(mRunningTaskId, 0, null, UserHandle.myUserId(), 0);
+        }
+
+        ActivityOptions opts = ActivityOptions.makeCustomAnimation(mContext, 0, 0);
+        ActivityManagerWrapper.getInstance().startActivityFromRecentsAsync(key, opts, null, null);
+    }
+
+    private void cleanupLauncher() {
+        // TODO: These should be done as part of ActivityOptions#OnAnimationStarted
+        mHotseat.setTranslationY(0);
+        mLauncher.setOnResumeCallback(() -> mDragView.close(false));
+    }
+
+    private void onAnimationToLauncherComplete() {
+        mDragView.close(false);
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/RecentsActivity.java b/quickstep/src/com/android/quickstep/RecentsActivity.java
new file mode 100644
index 0000000..f92d773
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/RecentsActivity.java
@@ -0,0 +1,48 @@
+/*
+ * 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.quickstep;
+
+import android.app.ListActivity;
+import android.os.Bundle;
+import android.os.UserHandle;
+import android.support.annotation.Nullable;
+import android.widget.ArrayAdapter;
+
+import com.android.systemui.shared.recents.model.RecentsTaskLoadPlan;
+import com.android.systemui.shared.recents.model.RecentsTaskLoadPlan.PreloadOptions;
+import com.android.systemui.shared.recents.model.RecentsTaskLoader;
+import com.android.systemui.shared.recents.model.Task;
+
+/**
+ * A simple activity to show the recently launched tasks
+ */
+public class RecentsActivity extends ListActivity {
+
+    private ArrayAdapter<Task> mAdapter;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        RecentsTaskLoadPlan plan = new RecentsTaskLoadPlan(this);
+        plan.preloadPlan(new PreloadOptions(), new RecentsTaskLoader(this, 1, 1, 0), -1,
+                UserHandle.myUserId());
+
+        mAdapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1);
+        mAdapter.addAll(plan.getTaskStack().getTasks());
+        setListAdapter(mAdapter);
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/RecentsView.java b/quickstep/src/com/android/quickstep/RecentsView.java
new file mode 100644
index 0000000..675f456
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/RecentsView.java
@@ -0,0 +1,173 @@
+/*
+ * 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.quickstep;
+
+import android.content.Context;
+import android.graphics.Rect;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+
+import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.PagedView;
+import com.android.launcher3.R;
+import com.android.systemui.shared.recents.model.RecentsTaskLoadPlan;
+import com.android.systemui.shared.recents.model.RecentsTaskLoader;
+import com.android.systemui.shared.recents.model.Task;
+import com.android.systemui.shared.recents.model.TaskStack;
+import com.android.systemui.shared.recents.model.ThumbnailData;
+import com.android.systemui.shared.system.ActivityManagerWrapper;
+import com.android.systemui.shared.system.TaskStackChangeListener;
+import com.android.systemui.shared.system.WindowManagerWrapper;
+
+import java.util.ArrayList;
+
+/**
+ * A list of recent tasks.
+ */
+public class RecentsView extends PagedView {
+
+    private boolean mOverviewStateEnabled;
+    private boolean mTaskStackListenerRegistered;
+
+    private TaskStackChangeListener mTaskStackListener = new TaskStackChangeListener() {
+        @Override
+        public void onTaskSnapshotChanged(int taskId, ThumbnailData snapshot) {
+            for (int i = 0; i < getChildCount(); i++) {
+                final TaskView taskView = (TaskView) getChildAt(i);
+                if (taskView.getTask().key.id == taskId) {
+                    taskView.getThumbnail().setThumbnail(snapshot);
+                    return;
+                }
+            }
+        }
+    };
+
+    public RecentsView(Context context) {
+        this(context, null);
+    }
+
+    public RecentsView(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public RecentsView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        setWillNotDraw(false);
+        setPageSpacing((int) getResources().getDimension(R.dimen.recents_page_spacing));
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+
+        Rect padding = getPadding(Launcher.getLauncher(getContext()));
+        setPadding(padding.left, padding.top, padding.right, padding.bottom);
+    }
+
+    @Override
+    protected void onWindowVisibilityChanged(int visibility) {
+        super.onWindowVisibilityChanged(visibility);
+        updateTaskStackListenerState();
+    }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        updateTaskStackListenerState();
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        updateTaskStackListenerState();
+    }
+
+    public void setOverviewStateEnabled(boolean enabled) {
+        mOverviewStateEnabled = enabled;
+        updateTaskStackListenerState();
+    }
+
+    public void update(RecentsTaskLoadPlan loadPlan) {
+        final RecentsTaskLoader loader = TouchInteractionService.getRecentsTaskLoader();
+        setCurrentPage(0);
+        TaskStack stack = loadPlan != null ? loadPlan.getTaskStack() : null;
+        if (stack == null) {
+            removeAllViews();
+            return;
+        }
+
+        // Ensure there are as many views as there are tasks in the stack (adding and trimming as
+        // necessary)
+        final LayoutInflater inflater = LayoutInflater.from(getContext());
+        final ArrayList<Task> tasks = stack.getTasks();
+        for (int i = getChildCount(); i < tasks.size(); i++) {
+            final TaskView taskView = (TaskView) inflater.inflate(R.layout.task, this, false);
+            addView(taskView);
+        }
+        while (getChildCount() > tasks.size()) {
+            final TaskView taskView = (TaskView) getChildAt(getChildCount() - 1);
+            removeView(taskView);
+            loader.unloadTaskData(taskView.getTask());
+        }
+
+        // Rebind all task views
+        for (int i = tasks.size() - 1; i >= 0; i--) {
+            final Task task = tasks.get(i);
+            final TaskView taskView = (TaskView) getChildAt(tasks.size() - i - 1);
+            taskView.bind(task);
+            loader.loadTaskData(task);
+        }
+    }
+
+    public void launchTaskWithId(int taskId) {
+        for (int i = 0; i < getChildCount(); i++) {
+            final TaskView taskView = (TaskView) getChildAt(i);
+            if (taskView.getTask().key.id == taskId) {
+                taskView.launchTask(false /* animate */);
+                return;
+            }
+        }
+    }
+
+    private void updateTaskStackListenerState() {
+        boolean registerStackListener = mOverviewStateEnabled && isAttachedToWindow()
+                && getWindowVisibility() == VISIBLE;
+        if (registerStackListener != mTaskStackListenerRegistered) {
+            if (registerStackListener) {
+                ActivityManagerWrapper.getInstance().registerTaskStackListener(mTaskStackListener);
+            } else {
+                ActivityManagerWrapper.getInstance().unregisterTaskStackListener(mTaskStackListener);
+            }
+            mTaskStackListenerRegistered = registerStackListener;
+        }
+    }
+
+    public static Rect getPadding(Launcher launcher) {
+        DeviceProfile profile = launcher.getDeviceProfile();
+        Rect stableInsets = new Rect();
+        WindowManagerWrapper.getInstance().getStableInsets(stableInsets);
+        Rect padding = profile.getWorkspacePadding(null);
+        float taskWidth = profile.getCurrentWidth() - stableInsets.left - stableInsets.right;
+        float taskHeight = profile.getCurrentHeight() - stableInsets.top - stableInsets.bottom;
+        float overviewHeight = profile.availableHeightPx - padding.top - padding.bottom
+                - stableInsets.top;
+        float overviewWidth = taskWidth * overviewHeight / taskHeight;
+        padding.left = padding.right = (int) ((profile.availableWidthPx - overviewWidth) / 2);
+        return padding;
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/SimpleTaskView.java b/quickstep/src/com/android/quickstep/SimpleTaskView.java
new file mode 100644
index 0000000..8425fa3
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/SimpleTaskView.java
@@ -0,0 +1,52 @@
+/*
+ * 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.quickstep;
+
+import android.content.Context;
+import android.graphics.Point;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.WindowManager;
+
+/**
+ * A simple view which keeps its size proportional to the display size
+ */
+public class SimpleTaskView extends View {
+
+    private static final Point sTempPoint = new Point();
+
+    public SimpleTaskView(Context context) {
+        super(context);
+    }
+
+    public SimpleTaskView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public SimpleTaskView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        int height = MeasureSpec.getSize(heightMeasureSpec);
+        getContext().getSystemService(WindowManager.class)
+                .getDefaultDisplay().getRealSize(sTempPoint);
+
+        int width = (int) ((float) height * sTempPoint.x / sTempPoint.y);
+        setMeasuredDimension(width, height);
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/SnapshotDragView.java b/quickstep/src/com/android/quickstep/SnapshotDragView.java
new file mode 100644
index 0000000..2ef3942
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/SnapshotDragView.java
@@ -0,0 +1,92 @@
+/*
+ * 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.quickstep;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.view.MotionEvent;
+
+import com.android.launcher3.AbstractFloatingView;
+import com.android.launcher3.Insettable;
+import com.android.launcher3.Launcher;
+import com.android.systemui.shared.recents.view.AnimateableViewBounds;
+
+/**
+ * Floating view which shows the task snapshot allowing it to be dragged and placed.
+ */
+public class SnapshotDragView extends AbstractFloatingView implements Insettable {
+
+    private final Launcher mLauncher;
+    private final Bitmap mSnapshot;
+    private final AnimateableViewBounds mViewBounds;
+
+    public SnapshotDragView(Launcher launcher, Bitmap snapshot) {
+        super(launcher, null);
+        mLauncher = launcher;
+        mSnapshot = snapshot;
+        mViewBounds = new AnimateableViewBounds(this, 0);
+        setWillNotDraw(false);
+        setClipToOutline(true);
+        setOutlineProvider(mViewBounds);
+    }
+
+    AnimateableViewBounds getViewBounds() {
+        return mViewBounds;
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        if (mSnapshot != null) {
+            setMeasuredDimension(mSnapshot.getWidth(), mSnapshot.getHeight());
+        } else {
+            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+        }
+    }
+
+    @Override
+    public void setInsets(Rect insets) {
+
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        if (mSnapshot != null) {
+            canvas.drawBitmap(mSnapshot, 0, 0, null);
+        }
+    }
+
+    @Override
+    public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
+        return false;
+    }
+
+    @Override
+    protected void handleClose(boolean animate) {
+        // We dont suupport animate.
+        mLauncher.getDragLayer().removeView(this);
+    }
+
+    @Override
+    public void logActionCommand(int command) {
+        // We should probably log the weather
+    }
+
+    @Override
+    protected boolean isOfType(int type) {
+        return (type & TYPE_QUICKSTEP_PREVIEW) != 0;
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/TaskThumbnailView.java b/quickstep/src/com/android/quickstep/TaskThumbnailView.java
new file mode 100644
index 0000000..6e8bbeb
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/TaskThumbnailView.java
@@ -0,0 +1,179 @@
+/*
+ * 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.quickstep;
+
+import android.content.Context;
+import android.content.res.Configuration;
+import android.graphics.Bitmap;
+import android.graphics.BitmapShader;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.LightingColorFilter;
+import android.graphics.Matrix;
+import android.graphics.Paint;
+import android.graphics.Point;
+import android.graphics.Rect;
+import android.graphics.Shader;
+import android.util.AttributeSet;
+import android.widget.FrameLayout;
+
+import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.Launcher;
+import com.android.systemui.shared.recents.model.ThumbnailData;
+
+/**
+ * A task in the Recents view.
+ */
+public class TaskThumbnailView extends FrameLayout {
+
+    private ThumbnailData mThumbnailData;
+
+    private Rect mThumbnailRect = new Rect();
+    private float mThumbnailScale;
+
+    private Matrix mMatrix = new Matrix();
+    private Paint mDrawPaint = new Paint();
+    protected Paint mBgFillPaint = new Paint();
+    protected BitmapShader mBitmapShader;
+
+    private float mDimAlpha = 1f;
+    private LightingColorFilter mLightingColorFilter = new LightingColorFilter(Color.WHITE, 0);
+
+    public TaskThumbnailView(Context context) {
+        this(context, null);
+    }
+
+    public TaskThumbnailView(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public TaskThumbnailView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        setWillNotDraw(false);
+        setClipToOutline(true);
+    }
+
+    /**
+     * Updates this thumbnail.
+     */
+    public void setThumbnail(ThumbnailData thumbnailData) {
+        if (thumbnailData != null && thumbnailData.thumbnail != null) {
+            Bitmap bm = thumbnailData.thumbnail;
+            bm.prepareToDraw();
+            mThumbnailScale = thumbnailData.scale;
+            mBitmapShader = new BitmapShader(bm, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
+            mDrawPaint.setShader(mBitmapShader);
+            mThumbnailRect.set(0, 0,
+                    bm.getWidth() - thumbnailData.insets.left - thumbnailData.insets.right,
+                    bm.getHeight() - thumbnailData.insets.top - thumbnailData.insets.bottom);
+            mThumbnailData = thumbnailData;
+            updateThumbnailMatrix();
+            updateThumbnailPaintFilter();
+        } else {
+            mBitmapShader = null;
+            mDrawPaint.setShader(null);
+            mThumbnailRect.setEmpty();
+            mThumbnailData = null;
+        }
+    }
+
+    /**
+     * Sets the alpha of the dim layer on top of this view.
+     */
+    public void setDimAlpha(float dimAlpha) {
+        mDimAlpha = dimAlpha;
+        updateThumbnailPaintFilter();
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        int viewWidth = getMeasuredWidth();
+        int viewHeight = getMeasuredHeight();
+        int thumbnailWidth = Math.min(viewWidth,
+                (int) (mThumbnailRect.width() * mThumbnailScale));
+        int thumbnailHeight = Math.min(viewHeight,
+                (int) (mThumbnailRect.height() * mThumbnailScale));
+
+        if (mBitmapShader != null && thumbnailWidth > 0 && thumbnailHeight > 0) {
+            // Draw the background, there will be some small overdraw with the thumbnail
+            if (thumbnailWidth < viewWidth) {
+                // Portrait thumbnail on a landscape task view
+                canvas.drawRect(Math.max(0, thumbnailWidth), 0, viewWidth, viewHeight,
+                        mBgFillPaint);
+            }
+            if (thumbnailHeight < viewHeight) {
+                // Landscape thumbnail on a portrait task view
+                canvas.drawRect(0, Math.max(0, thumbnailHeight), viewWidth, viewHeight,
+                        mBgFillPaint);
+            }
+
+            // Draw the thumbnail
+            canvas.drawRect(0, 0, thumbnailWidth, thumbnailHeight, mDrawPaint);
+        } else {
+            canvas.drawRect(0, 0, viewWidth, viewHeight, mBgFillPaint);
+        }
+    }
+
+    private void updateThumbnailPaintFilter() {
+        int mul = (int) (mDimAlpha * 255);
+        if (mBitmapShader != null) {
+            mLightingColorFilter = new LightingColorFilter(Color.argb(255, mul, mul, mul), 0);
+            mDrawPaint.setColorFilter(mLightingColorFilter);
+            mDrawPaint.setColor(0xFFffffff);
+            mBgFillPaint.setColorFilter(mLightingColorFilter);
+        } else {
+            mDrawPaint.setColorFilter(null);
+            mDrawPaint.setColor(Color.argb(255, mul, mul, mul));
+        }
+        invalidate();
+    }
+
+    private void updateThumbnailMatrix() {
+        mThumbnailScale = 1f;
+        if (mBitmapShader != null && mThumbnailData != null) {
+            if (getMeasuredWidth() == 0) {
+                // If we haven't measured , skip the thumbnail drawing and only draw the background
+                // color
+                mThumbnailScale = 0f;
+            } else {
+                float invThumbnailScale = 1f / mThumbnailScale;
+                final Configuration configuration =
+                        getContext().getApplicationContext().getResources().getConfiguration();
+                final DeviceProfile profile = Launcher.getLauncher(getContext()).getDeviceProfile();
+                if (configuration.orientation == Configuration.ORIENTATION_PORTRAIT) {
+                    if (mThumbnailData.orientation == Configuration.ORIENTATION_PORTRAIT) {
+                        // If we are in the same orientation as the screenshot, just scale it to the
+                        // width of the task view
+                        mThumbnailScale = (float) getMeasuredWidth() / mThumbnailRect.width();
+                    } else {
+                        // Scale the landscape thumbnail up to app size, then scale that to the task
+                        // view size to match other portrait screenshots
+                        mThumbnailScale = invThumbnailScale *
+                                ((float) getMeasuredWidth() / profile.getCurrentWidth());
+                    }
+                } else {
+                    // Otherwise, scale the screenshot to fit 1:1 in the current orientation
+                    mThumbnailScale = invThumbnailScale;
+                }
+            }
+            mMatrix.setTranslate(-mThumbnailData.insets.left, -mThumbnailData.insets.top);
+            mMatrix.postScale(mThumbnailScale, mThumbnailScale);
+            mBitmapShader.setLocalMatrix(mMatrix);
+        }
+        invalidate();
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/TaskView.java b/quickstep/src/com/android/quickstep/TaskView.java
new file mode 100644
index 0000000..029afd6
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/TaskView.java
@@ -0,0 +1,136 @@
+/*
+ * 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.quickstep;
+
+import android.app.ActivityOptions;
+import android.content.Context;
+import android.graphics.Rect;
+import android.util.AttributeSet;
+import android.widget.FrameLayout;
+import android.widget.ImageView;
+
+import com.android.launcher3.R;
+import com.android.launcher3.uioverrides.OverviewState;
+import com.android.systemui.shared.recents.model.Task;
+import com.android.systemui.shared.recents.model.Task.TaskCallbacks;
+import com.android.systemui.shared.recents.model.ThumbnailData;
+import com.android.systemui.shared.recents.view.AppTransitionAnimationSpecCompat;
+import com.android.systemui.shared.recents.view.AppTransitionAnimationSpecsFuture;
+import com.android.systemui.shared.recents.view.RecentsTransition;
+import com.android.systemui.shared.system.ActivityManagerWrapper;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * A task in the Recents view.
+ */
+public class TaskView extends FrameLayout implements TaskCallbacks {
+
+    private Task mTask;
+    private TaskThumbnailView mSnapshotView;
+    private ImageView mIconView;
+
+    public TaskView(Context context) {
+        this(context, null);
+    }
+
+    public TaskView(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public TaskView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        setOnClickListener((view) -> {
+            launchTask(true /* animate */);
+        });
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        mSnapshotView = findViewById(R.id.snapshot);
+        mIconView = findViewById(R.id.icon);
+    }
+
+    /**
+     * Updates this task view to the given {@param task}.
+     */
+    public void bind(Task task) {
+        if (mTask != null) {
+            mTask.removeCallback(this);
+        }
+        mTask = task;
+        task.addCallback(this);
+    }
+
+    public Task getTask() {
+        return mTask;
+    }
+
+    public TaskThumbnailView getThumbnail() {
+        return mSnapshotView;
+    }
+
+    public void launchTask(boolean animate) {
+        if (mTask != null) {
+            final ActivityOptions opts;
+            if (animate) {
+                // Calculate the bounds of the thumbnail to animate from
+                final Rect bounds = new Rect();
+                final int[] pos = new int[2];
+                mSnapshotView.getLocationInWindow(pos);
+                bounds.set(pos[0], pos[1],
+                        pos[0] + mSnapshotView.getWidth(),
+                        pos[1] + mSnapshotView.getHeight());
+                AppTransitionAnimationSpecsFuture animFuture =
+                        new AppTransitionAnimationSpecsFuture(getHandler()) {
+                            @Override
+                            public List<AppTransitionAnimationSpecCompat> composeSpecs() {
+                                ArrayList<AppTransitionAnimationSpecCompat> specs =
+                                        new ArrayList<>();
+                                specs.add(new AppTransitionAnimationSpecCompat(mTask.key.id, null,
+                                        bounds));
+                                return specs;
+                            }
+                        };
+                opts = RecentsTransition.createAspectScaleAnimation(
+                        getContext(), getHandler(), true /* scaleUp */, animFuture, null);
+            } else {
+                opts = ActivityOptions.makeCustomAnimation(getContext(), 0, 0);
+            }
+            ActivityManagerWrapper.getInstance().startActivityFromRecentsAsync(mTask.key,
+                    opts, null, null);
+        }
+    }
+
+    @Override
+    public void onTaskDataLoaded(Task task, ThumbnailData thumbnailData) {
+        mSnapshotView.setThumbnail(thumbnailData);
+        mIconView.setImageDrawable(task.icon);
+    }
+
+    @Override
+    public void onTaskDataUnloaded() {
+        mSnapshotView.setThumbnail(null);
+        mIconView.setImageDrawable(null);
+    }
+
+    @Override
+    public void onTaskWindowingModeChanged() {
+        // Do nothing
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/TouchInteractionService.java b/quickstep/src/com/android/quickstep/TouchInteractionService.java
new file mode 100644
index 0000000..ff26fb3
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -0,0 +1,269 @@
+/*
+ * 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.quickstep;
+
+import static android.view.MotionEvent.INVALID_POINTER_ID;
+
+import android.app.ActivityManager.RunningTaskInfo;
+import android.app.ActivityOptions;
+import android.app.Service;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ResolveInfo;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Point;
+import android.graphics.PointF;
+import android.graphics.Rect;
+import android.os.IBinder;
+import android.os.RemoteException;
+import android.os.UserHandle;
+import android.util.Log;
+import android.view.Choreographer;
+import android.view.Display;
+import android.view.MotionEvent;
+import android.view.VelocityTracker;
+import android.view.ViewConfiguration;
+import android.view.WindowManager;
+
+import com.android.launcher3.MainThreadExecutor;
+import com.android.launcher3.R;
+import com.android.launcher3.util.TraceHelper;
+import com.android.systemui.shared.recents.IOverviewProxy;
+import com.android.systemui.shared.recents.ISystemUiProxy;
+import com.android.systemui.shared.recents.model.RecentsTaskLoadPlan;
+import com.android.systemui.shared.recents.model.RecentsTaskLoadPlan.PreloadOptions;
+import com.android.systemui.shared.recents.model.RecentsTaskLoader;
+import com.android.systemui.shared.system.ActivityManagerWrapper;
+import com.android.systemui.shared.system.BackgroundExecutor;
+
+/**
+ * Service connected by system-UI for handling touch interaction.
+ */
+public class TouchInteractionService extends Service {
+
+    private static final String TAG = "TouchInteractionService";
+
+    private static RecentsTaskLoader sRecentsTaskLoader;
+
+    private final IBinder mMyBinder = new IOverviewProxy.Stub() {
+
+        @Override
+        public void onMotionEvent(MotionEvent ev) {
+            mEventQueue.queue(ev);
+        }
+
+        @Override
+        public void onBind(ISystemUiProxy iSystemUiProxy) throws RemoteException {
+            mISystemUiProxy = iSystemUiProxy;
+        }
+    };
+
+    private ActivityManagerWrapper mAM;
+    private RunningTaskInfo mRunningTask;
+    private Intent mHomeIntent;
+    private ComponentName mLauncher;
+    private MotionEventQueue mEventQueue;
+    private MainThreadExecutor mMainThreadExecutor;
+
+    private int mDisplayRotation;
+    private final Point mDisplaySize = new Point();
+    private final PointF mDownPos = new PointF();
+    private final PointF mLastPos = new PointF();
+    private int mActivePointerId = INVALID_POINTER_ID;
+    private VelocityTracker mVelocityTracker;
+    private int mTouchSlop;
+    private NavBarSwipeInteractionHandler mInteractionHandler;
+
+    private ISystemUiProxy mISystemUiProxy;
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        mAM = ActivityManagerWrapper.getInstance();
+
+        mHomeIntent = new Intent(Intent.ACTION_MAIN)
+                .addCategory(Intent.CATEGORY_HOME)
+                .setPackage(getPackageName())
+                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        ResolveInfo info = getPackageManager().resolveActivity(mHomeIntent, 0);
+        mLauncher = new ComponentName(getPackageName(), info.activityInfo.name);
+        mHomeIntent.setComponent(mLauncher);
+
+        Resources res = getResources();
+        if (sRecentsTaskLoader == null) {
+            sRecentsTaskLoader = new RecentsTaskLoader(this,
+                    res.getInteger(R.integer.config_recentsMaxThumbnailCacheSize),
+                    res.getInteger(R.integer.config_recentsMaxIconCacheSize), 0);
+            sRecentsTaskLoader.startLoader(this);
+        }
+
+        mMainThreadExecutor = new MainThreadExecutor();
+        mEventQueue = new MotionEventQueue(Choreographer.getInstance(), this::handleMotionEvent);
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        Log.d(TAG, "Touch service connected");
+        return mMyBinder;
+    }
+
+    public static RecentsTaskLoader getRecentsTaskLoader() {
+        return sRecentsTaskLoader;
+    }
+
+    private void handleMotionEvent(MotionEvent ev) {
+        if (ev.getActionMasked() != MotionEvent.ACTION_DOWN && mVelocityTracker == null) {
+            return;
+        }
+        switch (ev.getActionMasked()) {
+            case MotionEvent.ACTION_DOWN: {
+                mActivePointerId = ev.getPointerId(0);
+                mDownPos.set(ev.getX(), ev.getY());
+                mLastPos.set(mDownPos);
+                mTouchSlop = ViewConfiguration.get(this).getScaledTouchSlop();
+                Display display = getSystemService(WindowManager.class).getDefaultDisplay();
+                display.getRealSize(mDisplaySize);
+                mDisplayRotation = display.getRotation();
+
+                mRunningTask = mAM.getRunningTask();
+                if (mRunningTask == null || mRunningTask.topActivity.equals(mLauncher)) {
+                    // TODO: We could drive all-apps in this case. For now just ignore swipe.
+                    break;
+                }
+
+                if (mVelocityTracker == null) {
+                    mVelocityTracker = VelocityTracker.obtain();
+                } else {
+                    mVelocityTracker.clear();
+                }
+                mVelocityTracker.addMovement(ev);
+                if (mInteractionHandler != null) {
+                    mInteractionHandler.endTouch(0);
+                    mInteractionHandler = null;
+                }
+                break;
+            }
+            case MotionEvent.ACTION_POINTER_UP: {
+                int ptrIdx = ev.getActionIndex();
+                int ptrId = ev.getPointerId(ptrIdx);
+                if (ptrId == mActivePointerId) {
+                    final int newPointerIdx = ptrIdx == 0 ? 1 : 0;
+                    mDownPos.set(
+                            ev.getX(newPointerIdx) - (mLastPos.x - mDownPos.x),
+                            ev.getY(newPointerIdx) - (mLastPos.y - mDownPos.y));
+                    mLastPos.set(ev.getX(newPointerIdx), ev.getY(newPointerIdx));
+                    mActivePointerId = ev.getPointerId(newPointerIdx);
+                    mVelocityTracker.clear();
+                }
+                break;
+            }
+            case MotionEvent.ACTION_MOVE: {
+                int pointerIndex = ev.findPointerIndex(mActivePointerId);
+                if (pointerIndex == INVALID_POINTER_ID) {
+                    break;
+                }
+                mVelocityTracker.addMovement(ev);
+                mLastPos.set(ev.getX(pointerIndex), ev.getY(pointerIndex));
+
+                float displacement = ev.getY(pointerIndex) - mDownPos.y;
+                if (mInteractionHandler == null) {
+                    if (Math.abs(displacement) >= mTouchSlop) {
+                        startTouchTracking();
+                    }
+                } else {
+                    // Move
+                    mInteractionHandler.updateDisplacement(displacement);
+                }
+                break;
+            }
+            case MotionEvent.ACTION_CANCEL:
+                // TODO: Should be different than ACTION_UP
+            case MotionEvent.ACTION_UP: {
+
+                endInteraction();
+                break;
+            }
+        }
+    }
+
+    private void startTouchTracking() {
+        // Create the shared handler
+        final NavBarSwipeInteractionHandler handler =
+                new NavBarSwipeInteractionHandler(mRunningTask, this);
+
+        // Preload and start the recents activity on a background thread
+        final Context context = this;
+        final RecentsTaskLoadPlan loadPlan = new RecentsTaskLoadPlan(context);
+        final int taskId = mRunningTask.id;
+
+        BackgroundExecutor.get().submit(() -> {
+            // Get the snap shot before
+            handler.setTaskSnapshot(getCurrentTaskSnapshot());
+
+            // Start the launcher activity with our custom handler
+            Intent homeIntent = handler.addToIntent(new Intent(mHomeIntent));
+            startActivity(homeIntent, ActivityOptions.makeCustomAnimation(this, 0, 0).toBundle());
+
+            /*
+            ActivityManagerWrapper.getInstance().startRecentsActivity(null, options,
+                    ActivityOptions.makeCustomAnimation(this, 0, 0), UserHandle.myUserId(),
+                    null, null);
+             */
+
+            // Preload the plan
+            RecentsTaskLoader loader = TouchInteractionService.getRecentsTaskLoader();
+            PreloadOptions opts = new PreloadOptions();
+            opts.loadTitles = false;
+            loadPlan.preloadPlan(opts, loader, taskId, UserHandle.myUserId());
+            // Set the load plan on UI thread
+            mMainThreadExecutor.execute(() -> handler.setRecentsTaskLoadPlan(loadPlan));
+        });
+        mInteractionHandler = handler;
+    }
+
+    private void endInteraction() {
+        if (mInteractionHandler != null) {
+            mVelocityTracker.computeCurrentVelocity(1000,
+                    ViewConfiguration.get(this).getScaledMaximumFlingVelocity());
+
+            mInteractionHandler.endTouch(mVelocityTracker.getYVelocity(mActivePointerId));
+            mInteractionHandler = null;
+        }
+        mVelocityTracker.recycle();
+        mVelocityTracker = null;
+    }
+
+    private Bitmap getCurrentTaskSnapshot() {
+        if (mISystemUiProxy == null) {
+            Log.e(TAG, "Never received systemUIProxy");
+            return null;
+        }
+
+        TraceHelper.beginSection("TaskSnapshot");
+        // TODO: We are using some hardcoded layers for now, to best approximate the activity layers
+        try {
+            return mISystemUiProxy.screenshot(new Rect(), mDisplaySize.x, mDisplaySize.y, 0, 100000,
+                    false, mDisplayRotation).toBitmap();
+        } catch (RemoteException e) {
+            Log.e(TAG, "Error capturing snapshot", e);
+            return null;
+        } finally {
+            TraceHelper.endSection("TaskSnapshot");
+        }
+    }
+}
diff --git a/res/color/all_apps_tab_text.xml b/res/color/all_apps_tab_text.xml
new file mode 100644
index 0000000..f0c6310
--- /dev/null
+++ b/res/color/all_apps_tab_text.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:color="?android:attr/colorAccent" android:state_selected="true"/>
+    <item android:color="?android:attr/textColorTertiary"/>
+</selector>
\ No newline at end of file
diff --git a/res/drawable/all_apps_handle_landscape.xml b/res/drawable/all_apps_handle_landscape.xml
new file mode 100644
index 0000000..23826ab
--- /dev/null
+++ b/res/drawable/all_apps_handle_landscape.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="13dp"
+    android:height="13dp"
+    android:viewportWidth="13.0"
+    android:viewportHeight="13.0" >
+
+    <path
+        android:pathData="M2 8.5L6.5 4L11 8.5"
+        android:strokeColor="?attr/workspaceAmbientShadowColor"
+        android:strokeWidth="4"
+        android:strokeLineCap="round"
+        android:strokeLineJoin="round" />
+
+    <path
+        android:pathData="M2 8.5L6.5 4L11 8.5"
+        android:strokeColor="?attr/workspaceTextColor"
+        android:strokeWidth="2"
+        android:strokeLineCap="round"
+        android:strokeLineJoin="round" />
+
+</vector>
diff --git a/res/drawable/all_apps_handle_portrait.xml b/res/drawable/all_apps_handle_portrait.xml
new file mode 100644
index 0000000..75aa448
--- /dev/null
+++ b/res/drawable/all_apps_handle_portrait.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="16dp"
+    android:height="13dp"
+    android:viewportWidth="16.0"
+    android:viewportHeight="13.0" >
+
+    <path
+        android:pathData="M2 6h12"
+        android:strokeColor="?attr/workspaceAmbientShadowColor"
+        android:strokeWidth="4"
+        android:strokeLineCap="round" />
+
+    <path
+        android:pathData="M2 6h12"
+        android:strokeColor="?attr/workspaceTextColor"
+        android:strokeWidth="2"
+        android:strokeLineCap="round" />
+</vector>
\ No newline at end of file
diff --git a/res/drawable/bg_notification_content.xml b/res/drawable/bg_notification_content.xml
new file mode 100644
index 0000000..cf129eb
--- /dev/null
+++ b/res/drawable/bg_notification_content.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?attr/popupColorTertiary" />
+
+    <item android:height="3dp" android:top="0dp">
+        <shape>
+            <gradient
+                android:angle="270"
+                android:endColor="@android:color/transparent"
+                android:startColor="#33000000"
+                android:type="linear" />
+        </shape>
+    </item>
+</layer-list>
diff --git a/res/layout-land/launcher.xml b/res/layout-land/launcher.xml
index 0c7999e..4ea32b4 100644
--- a/res/layout-land/launcher.xml
+++ b/res/layout-land/launcher.xml
@@ -42,6 +42,19 @@
             android:layout_gravity="center"
             launcher:pageIndicator="@id/page_indicator" />
 
+        <com.android.launcher3.pageindicators.PageIndicatorLandscape
+            android:id="@+id/page_indicator"
+            android:theme="@style/HomeScreenElementTheme"
+            android:layout_width="@dimen/dynamic_grid_min_page_indicator_size"
+            android:layout_height="@dimen/dynamic_grid_min_page_indicator_size"
+            android:layout_gravity="bottom|left">
+            <ImageView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:src="@drawable/all_apps_handle_landscape"
+                android:layout_gravity="center" />
+        </com.android.launcher3.pageindicators.PageIndicatorLandscape>
+
         <include layout="@layout/gradient_bg" />
 
         <!-- DO NOT CHANGE THE ID -->
@@ -66,13 +79,6 @@
             android:layout_height="match_parent"
             android:visibility="invisible" />
 
-        <com.android.launcher3.pageindicators.PageIndicatorCaretLandscape
-            android:id="@+id/page_indicator"
-            android:theme="@style/HomeScreenElementTheme"
-            android:layout_width="@dimen/dynamic_grid_min_page_indicator_size"
-            android:layout_height="@dimen/dynamic_grid_min_page_indicator_size"
-            android:layout_gravity="bottom|left"/>
-
     </com.android.launcher3.dragndrop.DragLayer>
 
 </com.android.launcher3.LauncherRootView>
diff --git a/res/layout/all_apps.xml b/res/layout/all_apps.xml
index 6f837ae..832aaef 100644
--- a/res/layout/all_apps.xml
+++ b/res/layout/all_apps.xml
@@ -27,25 +27,54 @@
     android:focusableInTouchMode="true"
     android:saveEnabled="false" >
 
-    <!-- DO NOT CHANGE THE ID -->
-    <com.android.launcher3.allapps.AllAppsRecyclerView
-        android:id="@+id/apps_list_view"
+    <include layout="@layout/all_apps_rv_layout" />
+
+    <include layout="@layout/all_apps_fast_scroller" />
+
+    <RelativeLayout
+        android:id="@+id/all_apps_header"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:layout_below="@id/search_container_all_apps"
-        android:layout_gravity="center_horizontal|top"
-        android:clipToPadding="false"
-        android:descendantFocusability="afterDescendants"
-        android:focusable="true"
-        android:overScrollMode="never" />
+        android:layout_height="wrap_content"
+        android:clickable="true"
+        android:paddingTop="30dp"
+        android:layout_below="@id/search_container_all_apps" >
+
+        <com.android.launcher3.allapps.PredictionRowView
+            android:id="@+id/header_content"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"/>
+
+        <com.android.launcher3.views.SlidingTabStrip
+            android:id="@+id/tabs"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/all_apps_header_tab_height"
+            android:layout_below="@id/header_content"
+            android:orientation="horizontal">
+            <Button
+                android:id="@+id/tab_personal"
+                android:layout_width="0dp"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                android:text="@string/all_apps_personal_tab"
+                android:textColor="@color/all_apps_tab_text"
+                android:background="?android:attr/selectableItemBackground"/>
+            <Button
+                android:id="@+id/tab_work"
+                android:layout_width="0dp"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                android:text="@string/all_apps_work_tab"
+                android:textColor="@color/all_apps_tab_text"
+                android:background="?android:attr/selectableItemBackground"/>
+        </com.android.launcher3.views.SlidingTabStrip>
+
+    </RelativeLayout>
 
     <!-- Note: we are reusing/repurposing a system attribute for search layout, because of a
      platform bug, which prevents using custom attributes in <include> tag -->
     <include
         android:id="@id/search_container_all_apps"
-        layout="?android:attr/keyboardLayout" />
-
-    <include layout="@layout/all_apps_fast_scroller" />
+        layout="?android:attr/keyboardLayout"/>
 
     <View
         android:id="@+id/nav_bar_bg"
diff --git a/res/layout/all_apps_rv_layout.xml b/res/layout/all_apps_rv_layout.xml
new file mode 100644
index 0000000..3c19f8c
--- /dev/null
+++ b/res/layout/all_apps_rv_layout.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2017 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<com.android.launcher3.allapps.AllAppsRecyclerView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/apps_list_view"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_below="@id/search_container_all_apps"
+    android:clipToPadding="false"
+    android:descendantFocusability="afterDescendants"
+    android:focusable="true"
+    android:overScrollMode="never" />
diff --git a/res/layout/all_apps_tabs.xml b/res/layout/all_apps_tabs.xml
new file mode 100644
index 0000000..fa1d591
--- /dev/null
+++ b/res/layout/all_apps_tabs.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2017 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<com.android.launcher3.allapps.InterceptingViewPager
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/all_apps_tabs_view_pager"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_below="@id/search_container_all_apps"
+    android:layout_gravity="center_horizontal|top"
+    android:layout_marginTop="@dimen/all_apps_header_tab_height"
+    android:clipChildren="false"
+    android:clipToPadding="false"
+    android:descendantFocusability="afterDescendants"
+    android:paddingTop="30dp">
+
+    <include layout="@layout/all_apps_rv_layout" />
+
+    <include layout="@layout/all_apps_rv_layout" />
+
+</com.android.launcher3.allapps.InterceptingViewPager>
\ No newline at end of file
diff --git a/res/layout/deep_shortcut.xml b/res/layout/deep_shortcut.xml
index 4a2ad42..4a3db1f 100644
--- a/res/layout/deep_shortcut.xml
+++ b/res/layout/deep_shortcut.xml
@@ -35,6 +35,7 @@
         android:textColor="?android:attr/textColorPrimary"
         android:fontFamily="sans-serif"
         launcher:layoutHorizontal="true"
+        launcher:deferShadowGeneration="true"
         launcher:iconDisplay="shortcut_popup"
         launcher:iconSizeOverride="@dimen/deep_shortcut_icon_size" />
 
diff --git a/res/layout/notification.xml b/res/layout/notification.xml
deleted file mode 100644
index 1eebb43..0000000
--- a/res/layout/notification.xml
+++ /dev/null
@@ -1,97 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2017 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-<com.android.launcher3.notification.NotificationItemView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/notification_view"
-    android:layout_width="@dimen/bg_popup_item_width"
-    android:layout_height="wrap_content"
-    android:theme="@style/PopupItem"
-    android:elevation="@dimen/deep_shortcuts_elevation">
-
-    <RelativeLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical"
-        android:clipChildren="false">
-
-        <View
-            android:id="@+id/gutter_top"
-            android:layout_width="match_parent"
-            android:layout_height="4dp"
-            android:theme="@style/PopupGutter"
-            android:visibility="gone" />
-
-        <FrameLayout
-            android:id="@+id/header"
-            android:layout_width="match_parent"
-            android:layout_height="@dimen/notification_header_height"
-            android:paddingStart="@dimen/notification_padding_start"
-            android:paddingEnd="@dimen/notification_padding_end"
-            android:background="?attr/popupColorPrimary"
-            android:elevation="@dimen/notification_elevation"
-            android:layout_below="@id/gutter_top" >
-            <TextView
-                android:id="@+id/notification_text"
-                android:layout_width="wrap_content"
-                android:layout_height="match_parent"
-                android:layout_gravity="start"
-                android:gravity="center_vertical"
-                android:text="@string/notifications_header"
-                android:textSize="@dimen/notification_header_text_size"
-                android:textColor="?android:attr/textColorPrimary" />
-            <TextView
-                android:id="@+id/notification_count"
-                android:layout_width="@dimen/notification_icon_size"
-                android:layout_height="match_parent"
-                android:layout_gravity="end"
-                android:gravity="center"
-                android:textSize="@dimen/notification_header_count_text_size"
-                android:fontFamily="sans-serif-medium"
-                android:textColor="?android:attr/textColorPrimary" />
-        </FrameLayout>
-
-        <include layout="@layout/notification_main"
-            android:id="@+id/main_view"
-            android:layout_width="match_parent"
-            android:layout_height="@dimen/notification_main_height"
-            android:layout_below="@id/header" />
-
-        <View
-            android:id="@+id/divider"
-            android:layout_width="match_parent"
-            android:layout_height="@dimen/popup_item_divider_height"
-            android:background="?attr/popupColorTertiary"
-            android:layout_below="@id/main_view"
-            android:visibility="gone" />
-
-        <include layout="@layout/notification_footer"
-            android:id="@+id/footer"
-            android:layout_width="match_parent"
-            android:layout_height="@dimen/notification_footer_height"
-            android:layout_below="@id/divider" />
-
-        <View
-            android:id="@+id/gutter_bottom"
-            android:layout_width="match_parent"
-            android:layout_height="4dp"
-            android:theme="@style/PopupGutter"
-            android:visibility="gone"
-            android:layout_below="@id/footer" />
-
-    </RelativeLayout>
-
-</com.android.launcher3.notification.NotificationItemView>
diff --git a/res/layout/notification_content.xml b/res/layout/notification_content.xml
new file mode 100644
index 0000000..d01be01
--- /dev/null
+++ b/res/layout/notification_content.xml
@@ -0,0 +1,134 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<merge
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <!-- header -->
+    <FrameLayout
+        android:id="@+id/header"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/notification_header_height"
+        android:paddingEnd="@dimen/notification_padding_end"
+        android:paddingStart="@dimen/notification_padding_start">
+        <TextView
+            android:id="@+id/notification_text"
+            android:layout_width="wrap_content"
+            android:layout_height="match_parent"
+            android:layout_gravity="start"
+            android:gravity="center_vertical"
+            android:text="@string/notifications_header"
+            android:textColor="?android:attr/textColorPrimary"
+            android:textSize="@dimen/notification_header_text_size" />
+        <TextView
+            android:id="@+id/notification_count"
+            android:layout_width="@dimen/notification_icon_size"
+            android:layout_height="match_parent"
+            android:layout_gravity="end"
+            android:fontFamily="sans-serif-medium"
+            android:gravity="center"
+            android:textColor="?android:attr/textColorPrimary"
+            android:textSize="@dimen/notification_header_count_text_size" />
+    </FrameLayout>
+
+    <!-- Main view -->
+    <com.android.launcher3.notification.NotificationMainView
+        android:id="@+id/main_view"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/notification_main_height"
+        android:background="@drawable/bg_notification_content"
+        android:focusable="true" >
+
+        <LinearLayout
+            android:id="@+id/text_and_background"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:background="?attr/popupColorPrimary"
+            android:gravity="center_vertical"
+            android:orientation="vertical"
+            android:paddingBottom="14dp"
+            android:paddingEnd="@dimen/notification_main_text_padding_end"
+            android:paddingStart="@dimen/notification_padding_start">
+            <TextView
+                android:id="@+id/title"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:ellipsize="end"
+                android:fontFamily="sans-serif"
+                android:lines="1"
+                android:textAlignment="viewStart"
+                android:textColor="?android:attr/textColorPrimary"
+                android:textSize="@dimen/notification_main_title_size" />
+
+            <TextView
+                android:id="@+id/text"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:ellipsize="end"
+                android:fontFamily="sans-serif"
+                android:lines="1"
+                android:textColor="?android:attr/textColorSecondary"
+                android:textSize="@dimen/notification_main_text_size" />
+        </LinearLayout>
+
+        <View
+            android:id="@+id/popup_item_icon"
+            android:layout_width="@dimen/notification_icon_size"
+            android:layout_height="@dimen/notification_icon_size"
+            android:layout_gravity="center_vertical|end"
+            android:layout_marginBottom="7dp"
+            android:layout_marginEnd="@dimen/notification_padding_end" />
+
+    </com.android.launcher3.notification.NotificationMainView>
+
+    <!-- Divider -->
+    <View
+        android:id="@+id/divider"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/popup_item_divider_height"
+        android:layout_below="@id/main_view"
+        android:background="?attr/popupColorTertiary" />
+
+    <!-- Footer -->
+    <com.android.launcher3.notification.NotificationFooterLayout
+        android:id="@+id/footer"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/notification_footer_height"
+        android:layout_gravity="center_vertical"
+        android:clipChildren="false">
+
+        <LinearLayout
+            android:id="@+id/icon_row"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:clipChildren="false"
+            android:clipToPadding="false"
+            android:gravity="end|center_vertical"
+            android:orientation="horizontal"
+            android:padding="@dimen/notification_footer_icon_row_padding"/>
+
+        <View
+            android:id="@+id/overflow"
+            android:layout_width="@dimen/horizontal_ellipsis_size"
+            android:layout_height="@dimen/horizontal_ellipsis_size"
+            android:layout_gravity="start|center_vertical"
+            android:layout_marginStart="@dimen/horizontal_ellipsis_offset"
+            android:background="@drawable/horizontal_ellipsis" />
+
+    </com.android.launcher3.notification.NotificationFooterLayout>
+</merge>
\ No newline at end of file
diff --git a/res/layout/notification_footer.xml b/res/layout/notification_footer.xml
deleted file mode 100644
index 86280e0..0000000
--- a/res/layout/notification_footer.xml
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2017 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-
-<com.android.launcher3.notification.NotificationFooterLayout
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:elevation="@dimen/notification_elevation"
-    android:clipChildren="false"
-    android:layout_gravity="center_vertical"
-    android:background="?attr/popupColorPrimary">
-
-    <LinearLayout
-        android:id="@+id/icon_row"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="horizontal"
-        android:gravity="end|center_vertical"
-        android:padding="@dimen/notification_footer_icon_row_padding"
-        android:clipToPadding="false"
-        android:clipChildren="false"/>
-
-    <View
-        android:id="@+id/overflow"
-        android:layout_width="@dimen/horizontal_ellipsis_size"
-        android:layout_height="@dimen/horizontal_ellipsis_size"
-        android:background="@drawable/horizontal_ellipsis"
-        android:layout_marginStart="@dimen/horizontal_ellipsis_offset"
-        android:layout_gravity="start|center_vertical" />
-
-</com.android.launcher3.notification.NotificationFooterLayout>
-
diff --git a/res/layout/notification_gutter.xml b/res/layout/notification_gutter.xml
new file mode 100644
index 0000000..10e7f7d
--- /dev/null
+++ b/res/layout/notification_gutter.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<View
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="4dp"
+    android:layout_marginTop="4dp"
+    android:background="@drawable/bg_notification_content" />
\ No newline at end of file
diff --git a/res/layout/notification_main.xml b/res/layout/notification_main.xml
deleted file mode 100644
index f94face..0000000
--- a/res/layout/notification_main.xml
+++ /dev/null
@@ -1,66 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2017 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-
-<com.android.launcher3.notification.NotificationMainView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:focusable="true"
-    android:elevation="@dimen/notification_elevation" >
-
-    <LinearLayout
-        android:id="@+id/text_and_background"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical"
-        android:gravity="center_vertical"
-        android:background="?attr/popupColorPrimary"
-        android:paddingStart="@dimen/notification_padding_start"
-        android:paddingEnd="@dimen/notification_main_text_padding_end"
-        android:paddingBottom="14dp">
-        <TextView
-            android:id="@+id/title"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:textAlignment="viewStart"
-            android:fontFamily="sans-serif"
-            android:textSize="@dimen/notification_main_title_size"
-            android:textColor="?android:attr/textColorPrimary"
-            android:lines="1"
-            android:ellipsize="end" />
-
-        <TextView
-            android:id="@+id/text"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:fontFamily="sans-serif"
-            android:textSize="@dimen/notification_main_text_size"
-            android:textColor="?android:attr/textColorSecondary"
-            android:lines="1"
-            android:ellipsize="end" />
-    </LinearLayout>
-
-    <View
-        android:id="@+id/popup_item_icon"
-        android:layout_width="@dimen/notification_icon_size"
-        android:layout_height="@dimen/notification_icon_size"
-        android:layout_marginEnd="@dimen/notification_padding_end"
-        android:layout_marginBottom="7dp"
-        android:layout_gravity="center_vertical|end" />
-
-</com.android.launcher3.notification.NotificationMainView>
-
diff --git a/res/layout/overview_panel.xml b/res/layout/overview_panel.xml
index d1ac56c..c795b81 100644
--- a/res/layout/overview_panel.xml
+++ b/res/layout/overview_panel.xml
@@ -14,11 +14,9 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<LinearLayout
+<com.android.launcher3.uioverrides.OverviewPanel
       xmlns:android="http://schemas.android.com/apk/res/android"
-      xmlns:launcher="http://schemas.android.com/apk/res-auto"
       android:theme="@style/HomeScreenElementTheme"
-      launcher:layout_ignoreInsets="true"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:layout_gravity="center_horizontal|bottom"
@@ -73,4 +71,4 @@
         android:textColor="?attr/workspaceTextColor"
         android:textSize="12sp" />
 
-</LinearLayout>
\ No newline at end of file
+</com.android.launcher3.uioverrides.OverviewPanel>
\ No newline at end of file
diff --git a/res/layout/page_indicator.xml b/res/layout/page_indicator.xml
index 92f52d6..2df511b 100644
--- a/res/layout/page_indicator.xml
+++ b/res/layout/page_indicator.xml
@@ -14,7 +14,7 @@
      limitations under the License.
 -->
 
-<com.android.launcher3.pageindicators.PageIndicatorLineCaret
+<com.android.launcher3.pageindicators.PageIndicatorLine
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:theme="@style/HomeScreenElementTheme"
     android:layout_width="match_parent"
@@ -23,6 +23,7 @@
             android:id="@+id/all_apps_handle"
             android:layout_width="48dp"
             android:layout_height="@dimen/dynamic_grid_min_page_indicator_size"
+            android:src="@drawable/all_apps_handle_portrait"
             android:layout_gravity="top|center"
             android:scaleType="centerInside"/>
-</com.android.launcher3.pageindicators.PageIndicatorLineCaret>
+</com.android.launcher3.pageindicators.PageIndicatorLine>
diff --git a/res/layout/popup_container.xml b/res/layout/popup_container.xml
index 67db4a5..c737407 100644
--- a/res/layout/popup_container.xml
+++ b/res/layout/popup_container.xml
@@ -19,11 +19,8 @@
     android:id="@+id/deep_shortcuts_container"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
-    android:paddingTop="4dp"
-    android:paddingBottom="4dp"
+    android:background="?attr/popupColorPrimary"
     android:clipToPadding="false"
     android:clipChildren="false"
     android:elevation="@dimen/deep_shortcuts_elevation"
-    android:orientation="vertical">
-
-</com.android.launcher3.popup.PopupContainerWithArrow>
\ No newline at end of file
+    android:orientation="vertical" />
\ No newline at end of file
diff --git a/res/layout/shortcuts_item.xml b/res/layout/shortcuts_item.xml
deleted file mode 100644
index 7cd996d..0000000
--- a/res/layout/shortcuts_item.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2017 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-<com.android.launcher3.shortcuts.ShortcutsItemView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/shortcuts_view"
-    android:layout_width="@dimen/bg_popup_item_width"
-    android:layout_height="wrap_content"
-    android:elevation="@dimen/deep_shortcuts_elevation">
-
-    <LinearLayout
-        android:id="@+id/content"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical">
-
-        <!-- The shortcuts header is added at runtime when necessary. -->
-
-        <LinearLayout
-            android:id="@+id/shortcuts"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:orientation="vertical" />
-    </LinearLayout>
-
-</com.android.launcher3.shortcuts.ShortcutsItemView>
diff --git a/res/layout/system_shortcut.xml b/res/layout/system_shortcut.xml
index 04f3d02..1888e22 100644
--- a/res/layout/system_shortcut.xml
+++ b/res/layout/system_shortcut.xml
@@ -34,6 +34,7 @@
         android:fontFamily="sans-serif"
         launcher:iconDisplay="shortcut_popup"
         launcher:layoutHorizontal="true"
+        launcher:deferShadowGeneration="true"
         android:focusable="false" />
 
     <View
diff --git a/res/layout/system_shortcut_icons.xml b/res/layout/system_shortcut_icons.xml
index 34d63e7..4daf469 100644
--- a/res/layout/system_shortcut_icons.xml
+++ b/res/layout/system_shortcut_icons.xml
@@ -22,6 +22,4 @@
     android:orientation="horizontal"
     android:gravity="end|center_vertical"
     android:background="?attr/popupColorSecondary"
-    android:elevation="1dp"
-    android:outlineProvider="none" />
-    <!-- We have elevation so this is drawn on top, but no outline provider to remove shadow -->
+    android:clipToPadding="true" />
diff --git a/res/layout/zzz_weight_watcher.xml b/res/layout/zzz_weight_watcher.xml
deleted file mode 100644
index 07fd39e..0000000
--- a/res/layout/zzz_weight_watcher.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<com.android.launcher3.testing.WeightWatcher xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent" />
diff --git a/res/values/config.xml b/res/values/config.xml
index c0bf360..0ff0d75 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -1,8 +1,4 @@
 <resources>
-<!-- Dynamic Grid -->
-    <!-- Out of 100, the percent of space the overview bar should try and take vertically. -->
-    <integer name="config_dynamic_grid_overview_icon_zone_percentage">22</integer>
-
 <!-- Miscellaneous -->
     <bool name="config_largeHeap">false</bool>
     <bool name="is_tablet">false</bool>
@@ -50,8 +46,6 @@
 
     <!-- Out of 100, the percent to shrink the workspace during spring loaded mode. -->
     <integer name="config_workspaceSpringLoadShrinkPercentage">90</integer>
-    <!-- Out of 100, the percent to shrink the workspace during overview mode. -->
-    <integer name="config_workspaceOverviewShrinkPercentage">70</integer>
 
     <!-- This constant stores the ratio of the all apps button drawable which
          is used for internal (baked-in) padding -->
@@ -140,4 +134,8 @@
     <item type="id" name="search_container_hotseat" />
     <item type="id" name="search_container_all_apps" />
 
+<!-- Recents -->
+    <integer name="config_recentsMaxThumbnailCacheSize">6</integer>
+    <integer name="config_recentsMaxIconCacheSize">12</integer>
+
 </resources>
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 481199e..efe5043 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -15,7 +15,10 @@
 -->
 
 <resources>
-<!-- Dynamic Grid -->
+
+    <dimen name="click_shadow_elevation">4dp</dimen>
+
+    <!-- Dynamic Grid -->
     <dimen name="dynamic_grid_edge_margin">8dp</dimen>
     <dimen name="dynamic_grid_min_page_indicator_size">32dp</dimen>
     <dimen name="dynamic_grid_page_indicator_line_height">1dp</dimen>
@@ -86,10 +89,9 @@
     <dimen name="all_apps_empty_search_bg_top_offset">144dp</dimen>
     <dimen name="all_apps_background_canvas_width">700dp</dimen>
     <dimen name="all_apps_background_canvas_height">475dp</dimen>
-    <dimen name="all_apps_caret_stroke_width">2dp</dimen>
-    <dimen name="all_apps_caret_shadow_spread">1dp</dimen>
-    <dimen name="all_apps_caret_size">13dp</dimen>
     <dimen name="all_apps_caret_workspace_offset">18dp</dimen>
+    <dimen name="all_apps_header_tab_height">50dp</dimen>
+    <dimen name="all_apps_tabs_indicator_height">2dp</dimen>
 
 <!-- Search bar in All Apps -->
     <dimen name="all_apps_header_max_elevation">3dp</dimen>
@@ -179,6 +181,7 @@
     <dimen name="deep_shortcut_drag_handle_size">16dp</dimen>
     <dimen name="popup_padding_start">10dp</dimen>
     <dimen name="popup_padding_end">16dp</dimen>
+    <dimen name="popup_vertical_padding">4dp</dimen>
     <dimen name="popup_arrow_width">10dp</dimen>
     <dimen name="popup_arrow_height">8dp</dimen>
     <dimen name="popup_arrow_vertical_offset">-2dp</dimen>
@@ -226,10 +229,12 @@
     <dimen name="notification_footer_icon_size">18dp</dimen>
     <!-- notification_icon_size + notification_padding_end + 16dp padding between icon and text -->
     <dimen name="notification_main_text_padding_end">52dp</dimen>
-    <dimen name="notification_elevation">2dp</dimen>
     <dimen name="horizontal_ellipsis_size">18dp</dimen>
     <!-- arrow_horizontal_offset_start - (ellipsis_size - arrow_width) / 2 -->
     <dimen name="horizontal_ellipsis_offset">19dp</dimen>
     <dimen name="popup_item_divider_height">0.5dp</dimen>
     <dimen name="swipe_helper_falsing_threshold">70dp</dimen>
+
+<!-- Recents -->
+    <dimen name="recents_page_spacing">10dp</dimen>
 </resources>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index e9b00f6..fdd4d8d 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -318,4 +318,10 @@
     <!-- Accessibility confirmation for notification being dismissed. -->
     <string name="notification_dismissed">Notification dismissed</string>
 
+    <!-- Label of tab to indicate personal apps -->
+    <string name="all_apps_personal_tab">Personal</string>
+
+    <!-- Label of tab to indicate work apps -->
+    <string name="all_apps_work_tab">Work</string>
+
 </resources>
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 8129e81..8cc4743 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -136,13 +136,6 @@
     <style name="PopupItem">
         <item name="android:colorControlHighlight">?attr/popupColorTertiary</item>
     </style>
-    <style name="PopupGutter">
-        <item name="android:backgroundTintMode">multiply</item>
-        <item name="android:backgroundTint">?attr/popupColorSecondary</item>
-        <item name="android:background">@drawable/gutter_horizontal</item>
-        <item name="android:elevation">@dimen/notification_elevation</item>
-        <item name="android:outlineProvider">none</item>
-    </style>
 
     <!-- Drop targets -->
     <style name="DropTargetButtonBase">
diff --git a/res/xml/device_profiles.xml b/res/xml/device_profiles.xml
index c582fc5..30c1c54 100644
--- a/res/xml/device_profiles.xml
+++ b/res/xml/device_profiles.xml
@@ -15,7 +15,7 @@
      limitations under the License.
 -->
 
-<profiles xmlns:launcher="http://schemas.android.com/apk/res-auto/com.android.launcher3" >
+<profiles xmlns:launcher="http://schemas.android.com/apk/res-auto" >
 
     <profile
         launcher:name="Super Short Stubby"
diff --git a/src/com/android/launcher3/AbstractFloatingView.java b/src/com/android/launcher3/AbstractFloatingView.java
index 62e0fb1..26024e5 100644
--- a/src/com/android/launcher3/AbstractFloatingView.java
+++ b/src/com/android/launcher3/AbstractFloatingView.java
@@ -20,7 +20,6 @@
 import android.content.Context;
 import android.support.annotation.IntDef;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.view.MotionEvent;
 import android.view.View;
 import android.widget.LinearLayout;
@@ -42,7 +41,8 @@
             TYPE_ACTION_POPUP,
             TYPE_WIDGETS_BOTTOM_SHEET,
             TYPE_WIDGET_RESIZE_FRAME,
-            TYPE_WIDGETS_FULL_SHEET
+            TYPE_WIDGETS_FULL_SHEET,
+            TYPE_QUICKSTEP_PREVIEW
     })
     @Retention(RetentionPolicy.SOURCE)
     public @interface FloatingViewType {}
@@ -51,9 +51,11 @@
     public static final int TYPE_WIDGETS_BOTTOM_SHEET = 1 << 2;
     public static final int TYPE_WIDGET_RESIZE_FRAME = 1 << 3;
     public static final int TYPE_WIDGETS_FULL_SHEET = 1 << 4;
+    public static final int TYPE_QUICKSTEP_PREVIEW = 1 << 5;
 
     public static final int TYPE_ALL = TYPE_FOLDER | TYPE_ACTION_POPUP
-            | TYPE_WIDGETS_BOTTOM_SHEET | TYPE_WIDGET_RESIZE_FRAME | TYPE_WIDGETS_FULL_SHEET;
+            | TYPE_WIDGETS_BOTTOM_SHEET | TYPE_WIDGET_RESIZE_FRAME | TYPE_WIDGETS_FULL_SHEET
+            | TYPE_QUICKSTEP_PREVIEW;
 
     protected boolean mIsOpen;
 
diff --git a/src/com/android/launcher3/AllAppsList.java b/src/com/android/launcher3/AllAppsList.java
index 8ac8570..5eb6cc7 100644
--- a/src/com/android/launcher3/AllAppsList.java
+++ b/src/com/android/launcher3/AllAppsList.java
@@ -154,7 +154,7 @@
         for (int i = data.size() - 1; i >= 0; i--) {
             AppInfo info = data.get(i);
             if (matcher.matches(info, info.componentName)) {
-                info.isDisabled = op.apply(info.isDisabled);
+                info.runtimeStatusFlags = op.apply(info.runtimeStatusFlags);
                 modified.add(info);
             }
         }
diff --git a/src/com/android/launcher3/AppInfo.java b/src/com/android/launcher3/AppInfo.java
index 7d2f753..9796d18 100644
--- a/src/com/android/launcher3/AppInfo.java
+++ b/src/com/android/launcher3/AppInfo.java
@@ -21,9 +21,12 @@
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.LauncherActivityInfo;
+import android.os.Build;
+import android.os.Process;
 import android.os.UserHandle;
 
 import com.android.launcher3.compat.UserManagerCompat;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.PackageManagerHelper;
 
@@ -32,10 +35,6 @@
  */
 public class AppInfo extends ItemInfoWithIcon {
 
-    public static final int FLAG_SYSTEM_UNKNOWN = 0;
-    public static final int FLAG_SYSTEM_YES = 1 << 0;
-    public static final int FLAG_SYSTEM_NO = 1 << 1;
-
     /**
      * The intent used to start the application.
      */
@@ -43,16 +42,6 @@
 
     public ComponentName componentName;
 
-    /**
-     * {@see ShortcutInfo#isDisabled}
-     */
-    public int isDisabled = ShortcutInfo.DEFAULT;
-
-    /**
-     * Stores if the app is a system app or not.
-     */
-    public int isSystemApp;
-
     public AppInfo() {
         itemType = LauncherSettings.Favorites.ITEM_TYPE_APPLICATION;
     }
@@ -73,18 +62,12 @@
         this.componentName = info.getComponentName();
         this.container = ItemInfo.NO_ID;
         this.user = user;
-        if (PackageManagerHelper.isAppSuspended(info.getApplicationInfo())) {
-            isDisabled |= ShortcutInfo.FLAG_DISABLED_SUSPENDED;
-        }
-        if (quietModeEnabled) {
-            isDisabled |= ShortcutInfo.FLAG_DISABLED_QUIET_USER;
-        }
-
         intent = makeLaunchIntent(info);
 
-        isSystemApp = (info.getApplicationInfo().flags & ApplicationInfo.FLAG_SYSTEM) == 0
-                ? FLAG_SYSTEM_NO : FLAG_SYSTEM_YES;
-
+        if (quietModeEnabled) {
+            runtimeStatusFlags |= FLAG_DISABLED_QUIET_USER;
+        }
+        updateRuntimeFlagsForActivityTarget(this, info);
     }
 
     public AppInfo(AppInfo info) {
@@ -92,8 +75,6 @@
         componentName = info.componentName;
         title = Utilities.trim(info.title);
         intent = new Intent(info.intent);
-        isDisabled = info.isDisabled;
-        isSystemApp = info.isSystemApp;
     }
 
     @Override
@@ -120,8 +101,20 @@
                 .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
     }
 
-    @Override
-    public boolean isDisabled() {
-        return isDisabled != 0;
+    public static void updateRuntimeFlagsForActivityTarget(
+            ItemInfoWithIcon info, LauncherActivityInfo lai) {
+        ApplicationInfo appInfo = lai.getApplicationInfo();
+        if (PackageManagerHelper.isAppSuspended(appInfo)) {
+            info.runtimeStatusFlags |= FLAG_DISABLED_SUSPENDED;
+        }
+        info.runtimeStatusFlags |= (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) == 0
+                ? FLAG_SYSTEM_NO : FLAG_SYSTEM_YES;
+
+        if (FeatureFlags.LEGACY_ICON_TREATMENT && Utilities.ATLEAST_OREO
+                && appInfo.targetSdkVersion >= Build.VERSION_CODES.O
+                && Process.myUserHandle().equals(lai.getUser())) {
+            // The icon for a non-primary user is badged, hence it's not exactly an adaptive icon.
+            info.runtimeStatusFlags |= FLAG_ADAPTIVE_ICON;
+        }
     }
 }
diff --git a/src/com/android/launcher3/BaseRecyclerView.java b/src/com/android/launcher3/BaseRecyclerView.java
index afb83be..b315980 100644
--- a/src/com/android/launcher3/BaseRecyclerView.java
+++ b/src/com/android/launcher3/BaseRecyclerView.java
@@ -61,9 +61,13 @@
     @Override
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
-        ViewGroup parent = (ViewGroup) getParent();
+        bindFastScrollbar();
+    }
+
+    public void bindFastScrollbar() {
+        ViewGroup parent = (ViewGroup) getParent().getParent();
         mScrollbar = parent.findViewById(R.id.fast_scroller);
-        mScrollbar.setRecyclerView(this, (TextView) parent.findViewById(R.id.fast_scroller_popup));
+        mScrollbar.setRecyclerView(this, parent.findViewById(R.id.fast_scroller_popup));
     }
 
     /**
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index cd72fba..a590504 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -178,6 +178,16 @@
 
     }
 
+    /**
+     * Resets the view so it can be recycled.
+     */
+    public void reset() {
+        mBadgeInfo = null;
+        mBadgePalette = null;
+        mBadgeScale = 0f;
+        mForceHideBadge = false;
+    }
+
     public void applyFromShortcutInfo(ShortcutInfo info) {
         applyFromShortcutInfo(info, false);
     }
diff --git a/src/com/android/launcher3/ButtonDropTarget.java b/src/com/android/launcher3/ButtonDropTarget.java
index 1a1c319..cfb55cc 100644
--- a/src/com/android/launcher3/ButtonDropTarget.java
+++ b/src/com/android/launcher3/ButtonDropTarget.java
@@ -16,7 +16,7 @@
 
 package com.android.launcher3;
 
-import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_NEXT_FRAME;
+import static com.android.launcher3.LauncherState.NORMAL;
 
 import android.animation.AnimatorSet;
 import android.animation.FloatArrayEvaluator;
@@ -37,10 +37,9 @@
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityEvent;
-import android.view.animation.DecelerateInterpolator;
-import android.view.animation.LinearInterpolator;
 import android.widget.TextView;
 
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.dragndrop.DragOptions;
@@ -54,6 +53,7 @@
 public abstract class ButtonDropTarget extends TextView
         implements DropTarget, DragController.DragListener, OnClickListener {
 
+    private static final int[] sTempCords = new int[2];
     private static final int DRAG_VIEW_DROP_DURATION = 285;
 
     private final boolean mHideParentOnDisable;
@@ -201,6 +201,10 @@
 
     protected abstract boolean supportsDrop(ItemInfo info);
 
+    public boolean supportsAccessibilityDrop(ItemInfo info) {
+        return supportsDrop(info);
+    }
+
     @Override
     public boolean isDropEnabled() {
         return mActive && (mAccessibleDrag ||
@@ -231,19 +235,22 @@
             public void run() {
                 completeDrop(d);
                 mDropTargetBar.onDragEnd();
-                mLauncher.exitSpringLoadedDragMode(SPRING_LOADED_EXIT_NEXT_FRAME);
+                mLauncher.getStateManager().goToState(NORMAL);
             }
         };
         dragLayer.animateView(d.dragView, from, to, scale, 1f, 1f, 0.1f, 0.1f,
                 DRAG_VIEW_DROP_DURATION,
-                new DecelerateInterpolator(2),
-                new LinearInterpolator(), onAnimationEndRunnable,
+                Interpolators.DEACCEL_2, Interpolators.LINEAR, onAnimationEndRunnable,
                 DragLayer.ANIMATION_END_DISAPPEAR, null);
     }
 
+    public abstract int getAccessibilityAction();
+
     @Override
     public void prepareAccessibilityDrop() { }
 
+    public abstract void onAccessibilityDrop(View view, ItemInfo item);
+
     public abstract void completeDrop(DragObject d);
 
     @Override
@@ -251,9 +258,9 @@
         super.getHitRect(outRect);
         outRect.bottom += mBottomDragPadding;
 
-        int[] coords = new int[2];
-        mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, coords);
-        outRect.offsetTo(coords[0], coords[1]);
+        sTempCords[0] = sTempCords[1] = 0;
+        mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, sTempCords);
+        outRect.offsetTo(sTempCords[0], sTempCords[1]);
     }
 
     public Rect getIconRect(DragObject dragObject) {
diff --git a/src/com/android/launcher3/CellLayout.java b/src/com/android/launcher3/CellLayout.java
index 3643971..79a34a0 100644
--- a/src/com/android/launcher3/CellLayout.java
+++ b/src/com/android/launcher3/CellLayout.java
@@ -44,15 +44,15 @@
 import android.view.ViewDebug;
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityEvent;
-import android.view.animation.DecelerateInterpolator;
+
 import com.android.launcher3.BubbleTextView.BubbleTextShadowHandler;
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.accessibility.DragAndDropAccessibilityDelegate;
 import com.android.launcher3.accessibility.FolderAccessibilityHelper;
 import com.android.launcher3.accessibility.WorkspaceAccessibilityHelper;
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.anim.PropertyListBuilder;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.folder.FolderIcon;
 import com.android.launcher3.folder.PreviewBackground;
 import com.android.launcher3.graphics.DragPreviewProvider;
 import com.android.launcher3.util.CellAndSpan;
@@ -60,6 +60,7 @@
 import com.android.launcher3.util.ParcelableSparseArray;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.util.Thunk;
+
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
@@ -224,7 +225,7 @@
         mReorderPreviewAnimationMagnitude = (REORDER_PREVIEW_MAGNITUDE * grid.iconSizePx);
 
         // Initialize the data structures used for the drag visualization.
-        mEaseOutInterpolator = new DecelerateInterpolator(2.5f); // Quint ease out
+        mEaseOutInterpolator = Interpolators.DEACCEL_2_5; // Quint ease out
         mDragCell[0] = mDragCell[1] = -1;
         for (int i = 0; i < mDragOutlines.length; i++) {
             mDragOutlines[i] = new Rect(-1, -1, -1, -1);
@@ -342,7 +343,7 @@
         // the home screen mode, however, once in overview mode stylus button press should be
         // enabled to allow rearranging the different home screens. So check what mode
         // the workspace is in, and only perform stylus button presses while in overview mode.
-        if (mLauncher.mWorkspace.isInOverviewMode()
+        if (mLauncher.isInState(LauncherState.OVERVIEW)
                 && mStylusEventHelper.onMotionEvent(ev)) {
             return true;
         }
@@ -384,16 +385,7 @@
 
     @Override
     public void setPressedIcon(BubbleTextView icon, Bitmap background) {
-        if (icon == null || background == null) {
-            mTouchFeedbackView.setBitmap(null);
-            mTouchFeedbackView.animate().cancel();
-        } else {
-            if (mTouchFeedbackView.setBitmap(background)) {
-                mTouchFeedbackView.alignWithIconView(icon, mShortcutsAndWidgets,
-                        null /* clipAgainstView */);
-                mTouchFeedbackView.animateShadow();
-            }
-        }
+        mTouchFeedbackView.setPressedIcon(icon, background);
     }
 
     void setIsDragOverlapping(boolean isDragOverlapping) {
diff --git a/src/com/android/launcher3/ClickShadowView.java b/src/com/android/launcher3/ClickShadowView.java
index aad1112..5391b4d 100644
--- a/src/com/android/launcher3/ClickShadowView.java
+++ b/src/com/android/launcher3/ClickShadowView.java
@@ -16,15 +16,28 @@
 
 package com.android.launcher3;
 
+import static com.android.launcher3.FastBitmapDrawable.CLICK_FEEDBACK_DURATION;
+import static com.android.launcher3.FastBitmapDrawable.CLICK_FEEDBACK_INTERPOLATOR;
+import static com.android.launcher3.LauncherAnimUtils.ELEVATION;
+import static com.android.launcher3.graphics.HolographicOutlineHelper.ADAPTIVE_ICON_SHADOW_BITMAP;
+
+import android.animation.ObjectAnimator;
+import android.annotation.TargetApi;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Color;
+import android.graphics.Outline;
 import android.graphics.Paint;
 import android.graphics.Rect;
+import android.graphics.drawable.AdaptiveIconDrawable;
+import android.graphics.drawable.Drawable;
+import android.os.Build;
+import android.util.Property;
 import android.view.View;
 import android.view.ViewDebug;
 import android.view.ViewGroup;
+import android.view.ViewOutlineProvider;
 
 public class ClickShadowView extends View {
 
@@ -32,6 +45,8 @@
     private static final int SHADOW_LOW_ALPHA = 30;
     private static final int SHADOW_HIGH_ALPHA = 60;
 
+    private static float sAdaptiveIconScaleFactor = 1f;
+
     private final Paint mPaint;
 
     @ViewDebug.ExportedProperty(category = "launcher")
@@ -40,6 +55,10 @@
     private final float mShadowPadding;
 
     private Bitmap mBitmap;
+    private ObjectAnimator mAnim;
+
+    private Drawable mAdaptiveIcon;
+    private ViewOutlineProvider mOutlineProvider;
 
     public ClickShadowView(Context context) {
         super(context);
@@ -50,6 +69,10 @@
         mShadowOffset = getResources().getDimension(R.dimen.click_shadow_high_shift);
     }
 
+    public static void setAdaptiveIconScaleFactor(float factor) {
+        sAdaptiveIconScaleFactor = factor;
+    }
+
     /**
      * @return extra space required by the view to show the shadow.
      */
@@ -57,11 +80,64 @@
         return (int) (SHADOW_SIZE_FACTOR * mShadowPadding);
     }
 
+    public void setPressedIcon(BubbleTextView icon, Bitmap background) {
+        if (icon == null) {
+            setBitmap(null);
+            cancelAnim();
+            return;
+        }
+        if (background == null) {
+            if (mBitmap == ADAPTIVE_ICON_SHADOW_BITMAP) {
+                // clear animation shadow
+            }
+            setBitmap(null);
+            cancelAnim();
+            icon.setOutlineProvider(null);
+        } else if (setBitmap(background)) {
+            if (mBitmap == ADAPTIVE_ICON_SHADOW_BITMAP) {
+                setupAdaptiveShadow(icon);
+                cancelAnim();
+                startAnim(icon, ELEVATION,
+                        getResources().getDimension(R.dimen.click_shadow_elevation));
+            } else {
+                alignWithIconView(icon);
+                startAnim(this, ALPHA, 1);
+            }
+        }
+    }
+
+    @TargetApi(Build.VERSION_CODES.O)
+    private void setupAdaptiveShadow(final BubbleTextView view) {
+        if (mAdaptiveIcon == null) {
+            mAdaptiveIcon = new AdaptiveIconDrawable(null, null);
+            mOutlineProvider = new ViewOutlineProvider() {
+                @Override
+                public void getOutline(View view, Outline outline) {
+                    mAdaptiveIcon.getOutline(outline);
+                }
+            };
+        }
+
+        int iconWidth = view.getRight() - view.getLeft();
+        int iconHSpace = iconWidth - view.getCompoundPaddingRight() - view.getCompoundPaddingLeft();
+        int drawableWidth = view.getIcon().getBounds().width();
+
+        Rect bounds = new Rect();
+        bounds.left = view.getCompoundPaddingLeft() + (iconHSpace - drawableWidth) / 2;
+        bounds.right = bounds.left + drawableWidth;
+        bounds.top = view.getPaddingTop();
+        bounds.bottom = bounds.top + view.getIcon().getBounds().height();
+        Utilities.scaleRectAboutCenter(bounds, sAdaptiveIconScaleFactor);
+
+        mAdaptiveIcon.setBounds(bounds);
+        view.setOutlineProvider(mOutlineProvider);
+    }
+
     /**
      * Applies the new bitmap.
      * @return true if the view was invalidated.
      */
-    public boolean setBitmap(Bitmap b) {
+    private boolean setBitmap(Bitmap b) {
         if (b != mBitmap){
             mBitmap = b;
             invalidate();
@@ -80,48 +156,51 @@
         }
     }
 
-    public void animateShadow() {
-        setAlpha(0);
-        animate().alpha(1)
-            .setDuration(FastBitmapDrawable.CLICK_FEEDBACK_DURATION)
-            .setInterpolator(FastBitmapDrawable.CLICK_FEEDBACK_INTERPOLATOR)
-            .start();
+    private void cancelAnim() {
+        if (mAnim != null) {
+            mAnim.cancel();
+            mAnim.setCurrentPlayTime(0);
+            mAnim = null;
+        }
+    }
+
+    private void startAnim(View target, Property<View, Float> property, float endValue) {
+        cancelAnim();
+        property.set(target, 0f);
+        mAnim = ObjectAnimator.ofFloat(target, property, endValue);
+        mAnim.setDuration(CLICK_FEEDBACK_DURATION)
+                .setInterpolator(CLICK_FEEDBACK_INTERPOLATOR);
+        mAnim.start();
     }
 
     /**
      * Aligns the shadow with {@param view}
-     * @param viewParent immediate parent of {@param view}. It must be a sibling of this view.
+     * Note: {@param view} must be a descendant of my parent.
      */
-    public void alignWithIconView(BubbleTextView view, ViewGroup viewParent, View clipAgainstView) {
-        float leftShift = view.getLeft() + viewParent.getLeft() - getLeft();
-        float topShift = view.getTop() + viewParent.getTop() - getTop();
+    private void alignWithIconView(BubbleTextView view) {
+        int[] coords = new int[] {0, 0};
+        Utilities.getDescendantCoordRelativeToAncestor(
+                (ViewGroup) view.getParent(), (View) getParent(), coords, false);
+
+        float leftShift = view.getLeft() + coords[0] - getLeft();
+        float topShift = view.getTop() + coords[1] - getTop();
         int iconWidth = view.getRight() - view.getLeft();
         int iconHeight = view.getBottom() - view.getTop();
         int iconHSpace = iconWidth - view.getCompoundPaddingRight() - view.getCompoundPaddingLeft();
         float drawableWidth = view.getIcon().getBounds().width();
 
-        if (clipAgainstView != null) {
-            // Set the bounds to clip against
-            int[] coords = new int[] {0, 0};
-            Utilities.getDescendantCoordRelativeToAncestor(clipAgainstView, (View) getParent(),
-                    coords, false);
-            int clipLeft = (int) Math.max(0, coords[0] - leftShift - mShadowPadding);
-            int clipTop = (int) Math.max(0, coords[1] - topShift - mShadowPadding) ;
-            setClipBounds(new Rect(clipLeft, clipTop, clipLeft + iconWidth, clipTop + iconHeight));
-        } else {
-            // Reset the clip bounds
-            setClipBounds(null);
-        }
+        // Set the bounds to clip against
+        int clipLeft = (int) Math.max(0, coords[0] - leftShift - mShadowPadding);
+        int clipTop = (int) Math.max(0, coords[1] - topShift - mShadowPadding) ;
+        setClipBounds(new Rect(clipLeft, clipTop, clipLeft + iconWidth, clipTop + iconHeight));
 
         setTranslationX(leftShift
-                + viewParent.getTranslationX()
                 + view.getCompoundPaddingLeft() * view.getScaleX()
                 + (iconHSpace - drawableWidth) * view.getScaleX() / 2  /* drawable gap */
                 + iconWidth * (1 - view.getScaleX()) / 2  /* gap due to scale */
                 - mShadowPadding  /* extra shadow size */
                 );
         setTranslationY(topShift
-                + viewParent.getTranslationY()
                 + view.getPaddingTop() * view.getScaleY()  /* drawable gap */
                 + view.getHeight() * (1 - view.getScaleY()) / 2  /* gap due to scale */
                 - mShadowPadding  /* extra shadow size */
diff --git a/src/com/android/launcher3/DeleteDropTarget.java b/src/com/android/launcher3/DeleteDropTarget.java
index fdd4f34..c12ea57 100644
--- a/src/com/android/launcher3/DeleteDropTarget.java
+++ b/src/com/android/launcher3/DeleteDropTarget.java
@@ -21,6 +21,7 @@
 import android.util.AttributeSet;
 import android.view.View;
 
+import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
 import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.folder.Folder;
 
@@ -49,14 +50,22 @@
         setTextBasedOnDragSource(dragObject.dragInfo);
     }
 
-    /** @return true for items that should have a "Remove" action in accessibility. */
-    public static boolean supportsAccessibleDrop(ItemInfo info) {
+    /**
+     * @return true for items that should have a "Remove" action in accessibility.
+     */
+    @Override
+    public boolean supportsAccessibilityDrop(ItemInfo info) {
         return (info instanceof ShortcutInfo)
                 || (info instanceof LauncherAppWidgetInfo)
                 || (info instanceof FolderInfo);
     }
 
     @Override
+    public int getAccessibilityAction() {
+        return LauncherAccessibilityDelegate.REMOVE;
+    }
+
+    @Override
     protected boolean supportsDrop(ItemInfo info) {
         return true;
     }
@@ -77,19 +86,21 @@
     public void completeDrop(DragObject d) {
         ItemInfo item = d.dragInfo;
         if ((d.dragSource instanceof Workspace) || (d.dragSource instanceof Folder)) {
-            removeWorkspaceOrFolderItem(mLauncher, item, null);
+            onAccessibilityDrop(null, item);
         }
     }
 
     /**
      * Removes the item from the workspace. If the view is not null, it also removes the view.
      */
-    public static void removeWorkspaceOrFolderItem(Launcher launcher, ItemInfo item, View view) {
+    @Override
+    public void onAccessibilityDrop(View view, ItemInfo item) {
         // Remove the item from launcher and the db, we can ignore the containerInfo in this call
         // because we already remove the drag view from the folder (if the drag originated from
         // a folder) in Folder.beginDrag()
-        launcher.removeItem(view, item, true /* deleteFromDb */);
-        launcher.getWorkspace().stripEmptyScreens();
-        launcher.getDragLayer().announceForAccessibility(launcher.getString(R.string.item_removed));
+        mLauncher.removeItem(view, item, true /* deleteFromDb */);
+        mLauncher.getWorkspace().stripEmptyScreens();
+        mLauncher.getDragLayer()
+                .announceForAccessibility(getContext().getString(R.string.item_removed));
     }
 }
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 8f7e882..c6226f4 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -27,11 +27,11 @@
 import android.util.DisplayMetrics;
 import android.view.Gravity;
 import android.view.View;
-import android.view.ViewGroup;
 import android.view.ViewGroup.LayoutParams;
 import android.widget.FrameLayout;
 
 import com.android.launcher3.CellLayout.ContainerType;
+import com.android.launcher3.allapps.AllAppsContainerView;
 import com.android.launcher3.badge.BadgeRenderer;
 
 import java.util.ArrayList;
@@ -65,12 +65,6 @@
 
     private static final float TALL_DEVICE_ASPECT_RATIO_THRESHOLD = 2.0f;
 
-    // Overview mode
-    private final int overviewModeMinIconZoneHeightPx;
-    private final int overviewModeMaxIconZoneHeightPx;
-    private final int overviewModeBarItemWidthPx;
-    private final int overviewModeBarSpacerWidthPx;
-    private final float overviewModeIconZoneRatio;
 
     // Workspace
     private final int desiredWorkspaceLeftRightMarginPx;
@@ -196,16 +190,6 @@
                 res.getDimensionPixelSize(R.dimen.dynamic_grid_workspace_page_spacing);
         topWorkspacePadding =
                 res.getDimensionPixelSize(R.dimen.dynamic_grid_workspace_top_padding);
-        overviewModeMinIconZoneHeightPx =
-                res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_min_icon_zone_height);
-        overviewModeMaxIconZoneHeightPx =
-                res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_max_icon_zone_height);
-        overviewModeBarItemWidthPx =
-                res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_bar_item_width);
-        overviewModeBarSpacerWidthPx =
-                res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_bar_spacer_width);
-        overviewModeIconZoneRatio =
-                res.getInteger(R.integer.config_dynamic_grid_overview_icon_zone_percentage) / 100f;
         iconDrawablePaddingOriginalPx =
                 res.getDimensionPixelSize(R.dimen.dynamic_grid_icon_drawable_padding);
         dropTargetBarSizePx = res.getDimensionPixelSize(R.dimen.dynamic_grid_drop_target_size);
@@ -570,13 +554,6 @@
         }
     }
 
-    int getOverviewModeButtonBarHeight() {
-        int zoneHeight = (int) (overviewModeIconZoneRatio * availableHeightPx);
-        return Utilities.boundToRange(zoneHeight,
-                overviewModeMinIconZoneHeightPx,
-                overviewModeMaxIconZoneHeightPx);
-    }
-
     public static int calculateCellWidth(int width, int countX) {
         return width / countX;
     }
@@ -597,16 +574,6 @@
         return isVerticalBarLayout() || isLargeTablet;
     }
 
-    private int getVisibleChildCount(ViewGroup parent) {
-        int visibleChildren = 0;
-        for (int i = 0; i < parent.getChildCount(); i++) {
-            if (parent.getChildAt(i).getVisibility() != View.GONE) {
-                visibleChildren++;
-            }
-        }
-        return visibleChildren;
-    }
-
     public void layout(Launcher launcher, boolean notifyListeners) {
         FrameLayout.LayoutParams lp;
         boolean hasVerticalBarLayout = isVerticalBarLayout();
@@ -701,25 +668,10 @@
             pageIndicator.setLayoutParams(lp);
         }
 
-        // Layout the Overview Mode
-        ViewGroup overviewMode = launcher.getOverviewPanel();
-        if (overviewMode != null) {
-            int visibleChildCount = getVisibleChildCount(overviewMode);
-            int totalItemWidth = visibleChildCount * overviewModeBarItemWidthPx;
-            int maxWidth = totalItemWidth + (visibleChildCount - 1) * overviewModeBarSpacerWidthPx;
-
-            lp = (FrameLayout.LayoutParams) overviewMode.getLayoutParams();
-            lp.width = Math.min(availableWidthPx, maxWidth);
-            lp.height = getOverviewModeButtonBarHeight();
-            lp.bottomMargin = mInsets.bottom;
-            overviewMode.setLayoutParams(lp);
-        }
-
         // Layout the AllAppsRecyclerView
-        View view = launcher.findViewById(R.id.apps_list_view);
+        AllAppsContainerView appsView = launcher.findViewById(R.id.apps_view);
         int paddingLeftRight = desiredWorkspaceLeftRightMarginPx + cellLayoutPaddingLeftRightPx;
-        view.setPadding(paddingLeftRight, view.getPaddingTop(), paddingLeftRight,
-                view.getPaddingBottom());
+        appsView.setRecyclerViewSidePadding(paddingLeftRight, paddingLeftRight);
 
         if (notifyListeners) {
             for (int i = mListeners.size() - 1; i >= 0; i--) {
@@ -728,13 +680,13 @@
         }
     }
 
-    private int getCurrentWidth() {
+    public int getCurrentWidth() {
         return isLandscape
                 ? Math.max(widthPx, heightPx)
                 : Math.min(widthPx, heightPx);
     }
 
-    private int getCurrentHeight() {
+    public int getCurrentHeight() {
         return isLandscape
                 ? Math.min(widthPx, heightPx)
                 : Math.max(widthPx, heightPx);
diff --git a/src/com/android/launcher3/DropTargetBar.java b/src/com/android/launcher3/DropTargetBar.java
index 29a1349..3eca5cd 100644
--- a/src/com/android/launcher3/DropTargetBar.java
+++ b/src/com/android/launcher3/DropTargetBar.java
@@ -16,6 +16,9 @@
 
 package com.android.launcher3;
 
+import static com.android.launcher3.AlphaUpdateListener.updateVisibility;
+import static com.android.launcher3.Utilities.isAccessibilityEnabled;
+
 import android.animation.TimeInterpolator;
 import android.content.Context;
 import android.util.AttributeSet;
@@ -23,29 +26,27 @@
 import android.view.ViewDebug;
 import android.view.ViewGroup;
 import android.view.ViewPropertyAnimator;
-import android.view.accessibility.AccessibilityManager;
-import android.view.animation.AccelerateInterpolator;
 import android.widget.LinearLayout;
 
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragOptions;
 
+import java.util.ArrayList;
+
 /*
  * The top bar containing various drop targets: Delete/App Info/Uninstall.
  */
 public class DropTargetBar extends LinearLayout implements DragController.DragListener {
 
     protected static final int DEFAULT_DRAG_FADE_DURATION = 175;
-    protected static final TimeInterpolator DEFAULT_INTERPOLATOR = new AccelerateInterpolator();
+    protected static final TimeInterpolator DEFAULT_INTERPOLATOR = Interpolators.ACCEL;
 
     private final Runnable mFadeAnimationEndRunnable = new Runnable() {
 
         @Override
         public void run() {
-            AccessibilityManager am = (AccessibilityManager)
-                    getContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
-            boolean accessibilityEnabled = am.isEnabled();
-            AlphaUpdateListener.updateVisibility(DropTargetBar.this, accessibilityEnabled);
+            updateVisibility(DropTargetBar.this, isAccessibilityEnabled(getContext()));
         }
     };
 
@@ -55,6 +56,7 @@
     @ViewDebug.ExportedProperty(category = "launcher")
     protected boolean mVisible = false;
 
+    private ButtonDropTarget[] mDropTargets;
     private ViewPropertyAnimator mCurrentAnimation;
 
     public DropTargetBar(Context context, AttributeSet attrs) {
@@ -75,7 +77,27 @@
 
     public void setup(DragController dragController) {
         dragController.addDragListener(this);
-        setupButtonDropTarget(this, dragController);
+        ArrayList<ButtonDropTarget> outList = new ArrayList<>();
+        findDropTargets(this, outList);
+
+        mDropTargets = new ButtonDropTarget[outList.size()];
+        for (int i = 0; i < mDropTargets.length; i++) {
+            mDropTargets[i] = outList.get(i);
+            mDropTargets[i].setDropTargetBar(this);
+            dragController.addDragListener(mDropTargets[i]);
+            dragController.addDropTarget(mDropTargets[i]);
+        }
+    }
+
+    private static void findDropTargets(View view, ArrayList<ButtonDropTarget> outTargets) {
+        if (view instanceof ButtonDropTarget) {
+            outTargets.add((ButtonDropTarget) view);
+        } else if (view instanceof ViewGroup) {
+            ViewGroup vg = (ViewGroup) view;
+            for (int i = vg.getChildCount() - 1; i >= 0; i--) {
+                findDropTargets(vg.getChildAt(i), outTargets);
+            }
+        }
     }
 
     @Override
@@ -130,20 +152,6 @@
         return result;
     }
 
-    private void setupButtonDropTarget(View view, DragController dragController) {
-        if (view instanceof ButtonDropTarget) {
-            ButtonDropTarget bdt = (ButtonDropTarget) view;
-            bdt.setDropTargetBar(this);
-            dragController.addDragListener(bdt);
-            dragController.addDropTarget(bdt);
-        } else if (view instanceof ViewGroup) {
-            ViewGroup vg = (ViewGroup) view;
-            for (int i = vg.getChildCount() - 1; i >= 0; i--) {
-                setupButtonDropTarget(vg.getChildAt(i), dragController);
-            }
-        }
-    }
-
     private void animateToVisibility(boolean isVisible) {
         if (mVisible != isVisible) {
             mVisible = isVisible;
@@ -190,4 +198,8 @@
             mDeferOnDragEnd = false;
         }
     }
+
+    public ButtonDropTarget[] getDropTargets() {
+        return mDropTargets;
+    }
 }
diff --git a/src/com/android/launcher3/InfoDropTarget.java b/src/com/android/launcher3/InfoDropTarget.java
index f78cde5..289242f 100644
--- a/src/com/android/launcher3/InfoDropTarget.java
+++ b/src/com/android/launcher3/InfoDropTarget.java
@@ -26,6 +26,7 @@
 import android.util.Log;
 import android.widget.Toast;
 
+import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.util.Themes;
 
@@ -49,8 +50,8 @@
     }
 
     @Override
-    protected ComponentName performDropAction(DragObject d) {
-        return performDropAction(mLauncher, d.dragInfo, null, null);
+    protected ComponentName performDropAction(ItemInfo item) {
+        return performDropAction(mLauncher, item, null, null);
     }
 
     /**
@@ -96,13 +97,15 @@
     }
 
     @Override
-    protected boolean supportsDrop(ItemInfo info) {
-        return supportsDrop(getContext(), info);
+    public int getAccessibilityAction() {
+        return LauncherAccessibilityDelegate.INFO;
     }
 
-    public static boolean supportsDrop(Context context, ItemInfo info) {
+    @Override
+    protected boolean supportsDrop(ItemInfo info) {
         // Only show the App Info drop target if developer settings are enabled.
-        boolean developmentSettingsEnabled = Settings.Global.getInt(context.getContentResolver(),
+        boolean developmentSettingsEnabled = Settings.Global.getInt(
+                getContext().getContentResolver(),
                 Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 0) == 1;
         if (!developmentSettingsEnabled) {
             return false;
diff --git a/src/com/android/launcher3/InsettableFrameLayout.java b/src/com/android/launcher3/InsettableFrameLayout.java
index be76490..60f5ca2 100644
--- a/src/com/android/launcher3/InsettableFrameLayout.java
+++ b/src/com/android/launcher3/InsettableFrameLayout.java
@@ -9,8 +9,7 @@
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
 
-public class InsettableFrameLayout extends FrameLayout implements
-    ViewGroup.OnHierarchyChangeListener, Insettable {
+public class InsettableFrameLayout extends FrameLayout implements Insettable {
 
     @ViewDebug.ExportedProperty(category = "launcher")
     protected Rect mInsets = new Rect();
@@ -21,7 +20,6 @@
 
     public InsettableFrameLayout(Context context, AttributeSet attrs) {
         super(context, attrs);
-        setOnHierarchyChangeListener(this);
     }
 
     public void setFrameLayoutChildInsets(View child, Rect newInsets, Rect oldInsets) {
@@ -95,12 +93,8 @@
     }
 
     @Override
-    public void onChildViewAdded(View parent, View child) {
+    public void onViewAdded(View child) {
+        super.onViewAdded(child);
         setFrameLayoutChildInsets(child, mInsets, new Rect());
     }
-
-    @Override
-    public void onChildViewRemoved(View parent, View child) {
-    }
-
 }
diff --git a/src/com/android/launcher3/ItemInfoWithIcon.java b/src/com/android/launcher3/ItemInfoWithIcon.java
index 1e020e2..fea4dda 100644
--- a/src/com/android/launcher3/ItemInfoWithIcon.java
+++ b/src/com/android/launcher3/ItemInfoWithIcon.java
@@ -33,11 +33,75 @@
      */
     public boolean usingLowResIcon;
 
+    /**
+     * Indicates that the icon is disabled due to safe mode restrictions.
+     */
+    public static final int FLAG_DISABLED_SAFEMODE = 1 << 0;
+
+    /**
+     * Indicates that the icon is disabled as the app is not available.
+     */
+    public static final int FLAG_DISABLED_NOT_AVAILABLE = 1 << 1;
+
+    /**
+     * Indicates that the icon is disabled as the app is suspended
+     */
+    public static final int FLAG_DISABLED_SUSPENDED = 1 << 2;
+
+    /**
+     * Indicates that the icon is disabled as the user is in quiet mode.
+     */
+    public static final int FLAG_DISABLED_QUIET_USER = 1 << 3;
+
+    /**
+     * Indicates that the icon is disabled as the publisher has disabled the actual shortcut.
+     */
+    public static final int FLAG_DISABLED_BY_PUBLISHER = 1 << 4;
+
+    /**
+     * Indicates that the icon is disabled as the user partition is currently locked.
+     */
+    public static final int FLAG_DISABLED_LOCKED_USER = 1 << 5;
+
+    public static final int FLAG_DISABLED_MASK = FLAG_DISABLED_SAFEMODE |
+            FLAG_DISABLED_NOT_AVAILABLE | FLAG_DISABLED_SUSPENDED |
+            FLAG_DISABLED_QUIET_USER | FLAG_DISABLED_BY_PUBLISHER | FLAG_DISABLED_LOCKED_USER;
+
+    /**
+     * The item points to a system app.
+     */
+    public static final int FLAG_SYSTEM_YES = 1 << 6;
+
+    /**
+     * The item points to a non system app.
+     */
+    public static final int FLAG_SYSTEM_NO = 1 << 7;
+
+    public static final int FLAG_SYSTEM_MASK = FLAG_SYSTEM_YES | FLAG_SYSTEM_NO;
+
+    /**
+     * Flag indicating that the icon is an {@link android.graphics.drawable.AdaptiveIconDrawable}
+     * that can be optimized in various way.
+     */
+    public static final int FLAG_ADAPTIVE_ICON = 1 << 8;
+
+    /**
+     * Status associated with the system state of the underlying item. This is calculated every
+     * time a new info is created and not persisted on the disk.
+     */
+    public int runtimeStatusFlags = 0;
+
     protected ItemInfoWithIcon() { }
 
     protected ItemInfoWithIcon(ItemInfoWithIcon info) {
         super(info);
         iconBitmap = info.iconBitmap;
         usingLowResIcon = info.usingLowResIcon;
+        runtimeStatusFlags = info.runtimeStatusFlags;
+    }
+
+    @Override
+    public boolean isDisabled() {
+        return (runtimeStatusFlags & FLAG_DISABLED_MASK) != 0;
     }
 }
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 24e7083..b7986da 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -16,8 +16,18 @@
 
 package com.android.launcher3;
 
-import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_NEXT_FRAME;
+import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_NOSENSOR;
+import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
+
+import static com.android.launcher3.ItemInfoWithIcon.FLAG_DISABLED_BY_PUBLISHER;
+import static com.android.launcher3.ItemInfoWithIcon.FLAG_DISABLED_LOCKED_USER;
+import static com.android.launcher3.ItemInfoWithIcon.FLAG_DISABLED_QUIET_USER;
+import static com.android.launcher3.ItemInfoWithIcon.FLAG_DISABLED_SAFEMODE;
+import static com.android.launcher3.ItemInfoWithIcon.FLAG_DISABLED_SUSPENDED;
 import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY;
+import static com.android.launcher3.LauncherState.ALL_APPS;
+import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.logging.LoggerUtils.newContainerTarget;
 import static com.android.launcher3.util.RunnableWithId.RUNNABLE_ID_BIND_APPS;
 import static com.android.launcher3.util.RunnableWithId.RUNNABLE_ID_BIND_WIDGETS;
@@ -47,16 +57,15 @@
 import android.content.IntentSender;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
-import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
 import android.database.sqlite.SQLiteDatabase;
 import android.graphics.Point;
+import android.graphics.PointF;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Bundle;
-import android.os.Handler;
 import android.os.Parcelable;
 import android.os.Process;
 import android.os.StrictMode;
@@ -79,9 +88,7 @@
 import android.view.View;
 import android.view.View.OnLongClickListener;
 import android.view.ViewGroup;
-import android.view.WindowManager;
 import android.view.accessibility.AccessibilityEvent;
-import android.view.accessibility.AccessibilityManager;
 import android.view.animation.OvershootInterpolator;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.Toast;
@@ -101,7 +108,6 @@
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.dragndrop.DragView;
-import com.android.launcher3.dragndrop.PinItemDragListener;
 import com.android.launcher3.dynamicui.WallpaperColorInfo;
 import com.android.launcher3.folder.Folder;
 import com.android.launcher3.folder.FolderIcon;
@@ -112,10 +118,12 @@
 import com.android.launcher3.model.ModelWriter;
 import com.android.launcher3.notification.NotificationListener;
 import com.android.launcher3.pageindicators.PageIndicator;
-import com.android.launcher3.popup.BaseActionPopup;
 import com.android.launcher3.popup.PopupContainerWithArrow;
 import com.android.launcher3.popup.PopupDataProvider;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
+import com.android.launcher3.states.AllAppsState;
+import com.android.launcher3.states.InternalStateHandler;
+import com.android.launcher3.uioverrides.UiFactory;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
@@ -130,7 +138,6 @@
 import com.android.launcher3.util.PendingRequestArgs;
 import com.android.launcher3.util.RunnableWithId;
 import com.android.launcher3.util.SystemUiController;
-import com.android.launcher3.util.TestingUtils;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.util.Thunk;
 import com.android.launcher3.util.TraceHelper;
@@ -159,7 +166,6 @@
 public class Launcher extends BaseActivity
         implements LauncherExterns, View.OnClickListener, OnLongClickListener,
                    LauncherModel.Callbacks, View.OnTouchListener, LauncherProviderChangeListener,
-                   AccessibilityManager.AccessibilityStateChangeListener,
                    WallpaperColorInfo.OnThemeChangeListener {
     public static final String TAG = "Launcher";
     static final boolean LOGD = false;
@@ -186,11 +192,6 @@
      */
     protected static final int REQUEST_LAST = 100;
 
-    private static final int SOFT_INPUT_MODE_DEFAULT =
-            WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN;
-    private static final int SOFT_INPUT_MODE_ALL_APPS =
-            WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE;
-
     // The Intent extra that defines whether to ignore the launch animation
     static final String INTENT_EXTRA_IGNORE_LAUNCH_ANIMATION =
             "com.android.launcher3.intent.extra.shortcut.INGORE_LAUNCH_ANIMATION";
@@ -206,13 +207,7 @@
     // Type: SparseArray<Parcelable>
     private static final String RUNTIME_STATE_WIDGET_PANEL = "launcher.widget_panel";
 
-    static final String APPS_VIEW_SHOWN = "launcher.apps_view_shown";
-
-    /** The different states that Launcher can be in. */
-    enum State { WORKSPACE, WORKSPACE_SPRING_LOADED, APPS}
-
-    @Thunk State mState = State.WORKSPACE;
-    @Thunk LauncherStateTransitionAnimation mStateTransitionAnimation;
+    private LauncherStateManager mStateManager;
 
     private boolean mIsSafeModeEnabled;
 
@@ -228,15 +223,12 @@
     @Thunk DragLayer mDragLayer;
     private DragController mDragController;
 
-    public View mWeightWatcher;
-
     private AppWidgetManagerCompat mAppWidgetManager;
     private LauncherAppWidgetHost mAppWidgetHost;
 
     private final int[] mTmpAddItemCellCoordinates = new int[2];
 
     @Thunk Hotseat mHotseat;
-    private ViewGroup mOverviewPanel;
 
     private View mAllAppsButton;
 
@@ -246,6 +238,9 @@
     @Thunk AllAppsContainerView mAppsView;
     AllAppsTransitionController mAllAppsController;
 
+    // UI and state for the overview panel
+    private ViewGroup mOverviewPanel;
+
     // We need to store the orientation Launcher was created with, due to a bug (b/64916689)
     // that results in widgets being inflated in the wrong orientation.
     private int mOrientation;
@@ -266,7 +261,6 @@
     private ModelWriter mModelWriter;
     private IconCache mIconCache;
     private LauncherAccessibilityDelegate mAccessibilityDelegate;
-    private final Handler mHandler = new Handler();
     private boolean mHasFocus = false;
 
     private ObjectAnimator mScrimAnimator;
@@ -274,21 +268,12 @@
 
     private PopupDataProvider mPopupDataProvider;
 
-    // Determines how long to wait after a rotation before restoring the screen orientation to
-    // match the sensor state.
-    private static final int RESTORE_SCREEN_ORIENTATION_DELAY = 500;
-
     private final ArrayList<Integer> mSynchronouslyBoundPages = new ArrayList<>();
 
     // We only want to get the SharedPreferences once since it does an FS stat each time we get
     // it from the context.
     private SharedPreferences mSharedPrefs;
 
-    // Exiting spring loaded mode happens with a delay. This runnable object triggers the
-    // state transition. If another state transition happened during this delay,
-    // simply unregister this runnable.
-    private Runnable mExitSpringLoadedModeRunnable;
-
     // Activity result which needs to be processed after workspace has loaded.
     private ActivityResultInfo mPendingActivityResult;
     /**
@@ -301,15 +286,7 @@
 
     public ViewGroupFocusHelper mFocusHandler;
     private boolean mRotationEnabled = false;
-
-    @Thunk void setOrientation() {
-        if (mRotationEnabled) {
-            unlockScreenOrientation(true);
-        } else {
-            setRequestedOrientation(
-                    ActivityInfo.SCREEN_ORIENTATION_NOSENSOR);
-        }
-    }
+    private boolean mAppLaunchSuccess;
 
     private RotationPrefChangeHandler mRotationPrefChangeHandler;
 
@@ -363,7 +340,7 @@
 
         mDragController = new DragController(this);
         mAllAppsController = new AllAppsTransitionController(this);
-        mStateTransitionAnimation = new LauncherStateTransitionAnimation(this, mAllAppsController);
+        mStateManager = new LauncherStateManager(this);
 
         mAppWidgetManager = AppWidgetManagerCompat.getInstance(this);
 
@@ -382,9 +359,26 @@
 
         mPopupDataProvider = new PopupDataProvider(this);
 
-        ((AccessibilityManager) getSystemService(ACCESSIBILITY_SERVICE))
-                .addAccessibilityStateChangeListener(this);
+        mRotationEnabled = getResources().getBoolean(R.bool.allow_rotation);
+        // In case we are on a device with locked rotation, we should look at preferences to check
+        // if the user has specifically allowed rotation.
+        if (!mRotationEnabled) {
+            mRotationEnabled = Utilities.isAllowRotationPrefEnabled(getApplicationContext());
+            mRotationPrefChangeHandler = new RotationPrefChangeHandler();
+            mSharedPrefs.registerOnSharedPreferenceChangeListener(mRotationPrefChangeHandler);
+        }
 
+        boolean internalStateHandled = InternalStateHandler.handleCreate(this, getIntent());
+        if (internalStateHandled) {
+            // Temporarily enable the rotation
+            mRotationEnabled = true;
+
+            if (savedInstanceState != null) {
+                // InternalStateHandler has already set the appropriate state.
+                // We dont need to do anything.
+                savedInstanceState.remove(RUNTIME_STATE);
+            }
+        }
         restoreState(savedInstanceState);
 
         // We only load the page synchronously if the user rotates (or triggers a
@@ -393,10 +387,13 @@
         if (savedInstanceState != null) {
             currentScreen = savedInstanceState.getInt(RUNTIME_STATE_CURRENT_SCREEN, currentScreen);
         }
+
         if (!mModel.startLoader(currentScreen)) {
-            // If we are not binding synchronously, show a fade in animation when
-            // the first page bind completes.
-            mDragLayer.setAlpha(0);
+            if (!internalStateHandled) {
+                // If we are not binding synchronously, show a fade in animation when
+                // the first page bind completes.
+                mDragLayer.setAlpha(0);
+            }
         } else {
             // Pages bound synchronously.
             mWorkspace.setCurrentPage(currentScreen);
@@ -408,23 +405,10 @@
         mDefaultKeySsb = new SpannableStringBuilder();
         Selection.setSelection(mDefaultKeySsb, 0);
 
-        mRotationEnabled = getResources().getBoolean(R.bool.allow_rotation);
-        // In case we are on a device with locked rotation, we should look at preferences to check
-        // if the user has specifically allowed rotation.
-        if (!mRotationEnabled) {
-            mRotationEnabled = Utilities.isAllowRotationPrefEnabled(getApplicationContext());
-            mRotationPrefChangeHandler = new RotationPrefChangeHandler();
-            mSharedPrefs.registerOnSharedPreferenceChangeListener(mRotationPrefChangeHandler);
-        }
-
-        if (PinItemDragListener.handleDragRequest(this, getIntent())) {
-            // Temporarily enable the rotation
-            mRotationEnabled = true;
-        }
-
         // On large interfaces, or on devices that a user has specifically enabled screen rotation,
         // we want the screen to auto-rotate based on the current orientation
-        setOrientation();
+        setRequestedOrientation(mRotationEnabled
+                ? SCREEN_ORIENTATION_UNSPECIFIED : SCREEN_ORIENTATION_NOSENSOR);
 
         setContentView(mLauncherView);
 
@@ -450,6 +434,10 @@
         recreate();
     }
 
+    public LauncherStateManager getStateManager() {
+        return mStateManager;
+    }
+
     protected void overrideTheme(boolean isDark, boolean supportsDarkText) {
         if (isDark) {
             setTheme(R.style.LauncherThemeDark);
@@ -581,7 +569,7 @@
         Runnable exitSpringLoaded = new Runnable() {
             @Override
             public void run() {
-                exitSpringLoadedDragMode(SPRING_LOADED_EXIT_DELAY);
+                mStateManager.goToState(NORMAL, SPRING_LOADED_EXIT_DELAY);
             }
         };
 
@@ -601,11 +589,11 @@
             }
             return;
         } else if (requestCode == REQUEST_PICK_WALLPAPER) {
-            if (resultCode == RESULT_OK && mWorkspace.isInOverviewMode()) {
+            if (resultCode == RESULT_OK && isInState(OVERVIEW)) {
                 // User could have free-scrolled between pages before picking a wallpaper; make sure
                 // we move to the closest one now.
                 mWorkspace.setCurrentPage(mWorkspace.getPageNearestToCenterOfScreen());
-                showWorkspace(false);
+                mStateManager.goToState(NORMAL, false);
             }
             return;
         }
@@ -633,7 +621,7 @@
                 final Runnable onComplete = new Runnable() {
                     @Override
                     public void run() {
-                        exitSpringLoadedDragMode(SPRING_LOADED_EXIT_NEXT_FRAME);
+                        getStateManager().goToState(NORMAL);
                     }
                 };
 
@@ -761,7 +749,7 @@
                 @Override
                 public void run() {
                     completeAddAppWidget(appWidgetId, requestArgs, layout, null);
-                    exitSpringLoadedDragMode(SPRING_LOADED_EXIT_DELAY);
+                    mStateManager.goToState(NORMAL, SPRING_LOADED_EXIT_DELAY);
                 }
             };
         } else if (resultCode == RESULT_CANCELED) {
@@ -786,11 +774,12 @@
         if (mLauncherCallbacks != null) {
             mLauncherCallbacks.onStop();
         }
+        mAppWidgetHost.setListenIfResumed(false);
 
-        if (Utilities.ATLEAST_NOUGAT_MR1) {
-            mAppWidgetHost.stopListening();
+        if (!mAppLaunchSuccess) {
+            getUserEventDispatcher().logActionCommand(Action.Command.STOP,
+                    mStateManager.getState().containerType);
         }
-
         NotificationListener.removeNotificationsChangedListener();
     }
 
@@ -802,10 +791,7 @@
         if (mLauncherCallbacks != null) {
             mLauncherCallbacks.onStart();
         }
-
-        if (Utilities.ATLEAST_NOUGAT_MR1) {
-            mAppWidgetHost.startListening();
-        }
+        mAppWidgetHost.setListenIfResumed(true);
 
         if (!isWorkspaceLoading()) {
             NotificationListener.setNotificationsChangedListener(mPopupDataProvider);
@@ -837,6 +823,7 @@
         super.onResume();
         TraceHelper.partitionSection("ON_RESUME", "superCall");
 
+        mAppLaunchSuccess = false;
         getUserEventDispatcher().resetElapsedSessionMillis();
         mPaused = false;
         if (mOnResumeNeedsLoad) {
@@ -926,7 +913,7 @@
         }
     }
 
-    protected boolean hasSettings() {
+    public boolean hasSettings() {
         if (mLauncherCallbacks != null) {
             return mLauncherCallbacks.hasSettings();
         } else {
@@ -992,26 +979,6 @@
         return handled;
     }
 
-    @Override
-    public boolean onKeyUp(int keyCode, KeyEvent event) {
-        if (keyCode == KeyEvent.KEYCODE_MENU) {
-            // Ignore the menu key if we are currently dragging or are on the custom content screen
-            if (!mDragController.isDragging()) {
-                // Close any open floating view
-                AbstractFloatingView.closeAllOpenViews(this);
-
-                // Show the overview mode if we are on the workspace
-                if (mState == State.WORKSPACE && !mWorkspace.isInOverviewMode() &&
-                        !mWorkspace.isSwitchingState()) {
-                    mOverviewPanel.requestFocus();
-                    showOverviewMode(true, true /* requestButtonFocus */);
-                }
-            }
-            return true;
-        }
-        return super.onKeyUp(keyCode, event);
-    }
-
     private String getTypedText() {
         return mDefaultKeySsb.toString();
     }
@@ -1023,6 +990,10 @@
         Selection.setSelection(mDefaultKeySsb, 0);
     }
 
+    public boolean isInState(LauncherState state) {
+        return mStateManager.getState() == state;
+    }
+
     /**
      * Restores the previous state, if it exists.
      *
@@ -1033,12 +1004,11 @@
             return;
         }
 
-        int stateOrdinal = savedState.getInt(RUNTIME_STATE, State.WORKSPACE.ordinal());
-        State[] stateValues = State.values();
-        State state = (stateOrdinal >= 0 && stateOrdinal < stateValues.length)
-                ? stateValues[stateOrdinal] : State.WORKSPACE;
-        if (state == State.APPS) {
-            showAppsView(false /* animated */);
+        int stateOrdinal = savedState.getInt(RUNTIME_STATE, NORMAL.ordinal);
+        LauncherState[] stateValues = LauncherState.values();
+        LauncherState state = stateValues[stateOrdinal];
+        if (!state.doNotRestore) {
+            mStateManager.goToState(state, false /* animated */);
         }
 
         PendingRequestArgs requestArgs = savedState.getParcelable(RUNTIME_STATE_PENDING_REQUEST_ARGS);
@@ -1063,6 +1033,7 @@
         mFocusHandler = mDragLayer.getFocusIndicatorHelper();
         mWorkspace = mDragLayer.findViewById(R.id.workspace);
         mWorkspace.initParentViews(mDragLayer);
+        mOverviewPanel = findViewById(R.id.overview_panel);
 
         mLauncherView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                 | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
@@ -1077,9 +1048,6 @@
             mHotseat.setOnLongClickListener(this);
         }
 
-        // Setup the overview panel
-        setupOverviewPanel();
-
         // Setup the workspace
         mWorkspace.setHapticFeedbackEnabled(false);
         mWorkspace.setOnLongClickListener(this);
@@ -1098,51 +1066,9 @@
 
         // Setup the drag controller (drop targets have to be added in reverse order in priority)
         mDragController.setMoveTarget(mWorkspace);
-        mDragController.addDropTarget(mWorkspace);
         mDropTargetBar.setup(mDragController);
 
         mAllAppsController.setupViews(mAppsView, mHotseat, mWorkspace);
-
-        if (TestingUtils.MEMORY_DUMP_ENABLED) {
-            TestingUtils.addWeightWatcher(this);
-        }
-    }
-
-    private void setupOverviewPanel() {
-        mOverviewPanel = findViewById(R.id.overview_panel);
-
-        // Bind wallpaper button actions
-        View wallpaperButton = findViewById(R.id.wallpaper_button);
-        new OverviewButtonClickListener(ControlType.WALLPAPER_BUTTON) {
-            @Override
-            public void handleViewClick(View view) {
-                onClickWallpaperPicker(view);
-            }
-        }.attachTo(wallpaperButton);
-
-        // Bind widget button actions
-        new OverviewButtonClickListener(ControlType.WIDGETS_BUTTON) {
-            @Override
-            public void handleViewClick(View view) {
-                onClickAddWidgetButton(view);
-            }
-        }.attachTo(findViewById(R.id.widget_button));
-
-        // Bind settings actions
-        View settingsButton = findViewById(R.id.settings_button);
-        boolean hasSettings = hasSettings();
-        if (hasSettings) {
-            new OverviewButtonClickListener(ControlType.SETTINGS_BUTTON) {
-                @Override
-                public void handleViewClick(View view) {
-                    onClickSettingsButton(view);
-                }
-            }.attachTo(settingsButton);
-        } else {
-            settingsButton.setVisibility(View.GONE);
-        }
-
-        mOverviewPanel.setAlpha(0f);
     }
 
     /**
@@ -1316,10 +1242,7 @@
                 // Reset AllApps to its initial state only if we are not in the middle of
                 // processing a multi-step drop
                 if (mAppsView != null && mPendingRequestArgs == null) {
-                    if (!showWorkspace(false)) {
-                        // If we are already on the workspace, then manually reset all apps
-                        mAppsView.reset();
-                    }
+                    mStateManager.goToState(NORMAL);
                 }
                 mShouldFadeInScrim = true;
             } else if (Intent.ACTION_USER_PRESENT.equals(action)) {
@@ -1337,9 +1260,9 @@
                 mWorkspace.updateIconBadges(updatedBadges);
                 mAppsView.updateIconBadges(updatedBadges);
 
-                BaseActionPopup popup = BaseActionPopup.getOpen(Launcher.this);
-                if (popup instanceof PopupContainerWithArrow) {
-                    ((PopupContainerWithArrow) popup).updateNotificationHeader(updatedBadges);
+                PopupContainerWithArrow popup = PopupContainerWithArrow.getOpen(Launcher.this);
+                if (popup != null) {
+                    popup.updateNotificationHeader(updatedBadges);
                 }
             }
         };
@@ -1367,6 +1290,10 @@
         }
     }
 
+    public AllAppsTransitionController getAllAppsController() {
+        return mAllAppsController;
+    }
+
     public DragLayer getDragLayer() {
         return mDragLayer;
     }
@@ -1383,8 +1310,8 @@
         return mHotseat;
     }
 
-    public ViewGroup getOverviewPanel() {
-        return mOverviewPanel;
+    public <T extends ViewGroup> T getOverviewPanel() {
+        return (T) mOverviewPanel;
     }
 
     public DropTargetBar getDropTargetBar() {
@@ -1419,68 +1346,50 @@
                 != Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
 
         // Check this condition before handling isActionMain, as this will get reset.
-        boolean shouldMoveToDefaultScreen = alreadyOnHome &&
-                mState == State.WORKSPACE && AbstractFloatingView.getTopOpenView(this) == null;
-
+        boolean shouldMoveToDefaultScreen = alreadyOnHome && isInState(NORMAL)
+                && AbstractFloatingView.getTopOpenView(this) == null;
         boolean isActionMain = Intent.ACTION_MAIN.equals(intent.getAction());
+        boolean internalStateHandled = InternalStateHandler
+                .handleNewIntent(this, intent, alreadyOnHome);
+
         if (isActionMain) {
-            if (mWorkspace == null) {
-                // Can be cases where mWorkspace is null, this prevents a NPE
-                return;
-            }
+            if (!internalStateHandled) {
+                // Note: There should be at most one log per method call. This is enforced
+                // implicitly by using if-else statements.
+                UserEventDispatcher ued = getUserEventDispatcher();
+                AbstractFloatingView topOpenView = AbstractFloatingView.getTopOpenView(this);
+                if (topOpenView != null) {
+                    topOpenView.logActionCommand(Action.Command.HOME_INTENT);
+                } else if (alreadyOnHome) {
+                    Target target = newContainerTarget(mStateManager.getState().containerType);
+                    target.pageIndex = mWorkspace.getCurrentPage();
+                    ued.logActionCommand(Action.Command.HOME_INTENT, target);
+                }
 
-            // Note: There should be at most one log per method call. This is enforced implicitly
-            // by using if-else statements.
-            UserEventDispatcher ued = getUserEventDispatcher();
-            AbstractFloatingView topOpenView = AbstractFloatingView.getTopOpenView(this);
-            if (topOpenView != null) {
-                topOpenView.logActionCommand(Action.Command.HOME_INTENT);
-            } else if (alreadyOnHome) {
-                Target target = newContainerTarget(mWorkspace.getState().containerType);
-                target.pageIndex = mWorkspace.getCurrentPage();
-                ued.logActionCommand(Action.Command.HOME_INTENT, target);
-            }
+                // In all these cases, only animate if we're already on home
+                AbstractFloatingView.closeAllOpenViews(this, alreadyOnHome);
 
-            // In all these cases, only animate if we're already on home
-            AbstractFloatingView.closeAllOpenViews(this, alreadyOnHome);
-            showWorkspace(alreadyOnHome /* animated */);
+                mStateManager.goToState(NORMAL, alreadyOnHome /* animated */);
+
+                // Reset the apps view
+                if (!alreadyOnHome && mAppsView != null) {
+                    mAppsView.reset();
+                }
+
+                if (shouldMoveToDefaultScreen && !mWorkspace.isTouchActive()) {
+                    mWorkspace.post(mWorkspace::moveToDefaultScreen);
+                }
+            }
 
             final View v = getWindow().peekDecorView();
             if (v != null && v.getWindowToken() != null) {
                 UiThreadHelper.hideKeyboardAsync(this, v.getWindowToken());
             }
 
-            // Reset the apps view
-            if (!alreadyOnHome && mAppsView != null) {
-                mAppsView.reset();
-            }
-
             if (mLauncherCallbacks != null) {
                 mLauncherCallbacks.onHomeIntent();
             }
         }
-        PinItemDragListener.handleDragRequest(this, intent);
-
-        if (mLauncherCallbacks != null) {
-            mLauncherCallbacks.onNewIntent(intent);
-        }
-
-        // Defer moving to the default screen until after we callback to the LauncherCallbacks
-        // as slow logic in the callbacks eat into the time the scroller expects for the snapToPage
-        // animation.
-        if (isActionMain) {
-            if (shouldMoveToDefaultScreen && !mWorkspace.isTouchActive()) {
-
-                mWorkspace.post(new Runnable() {
-                    @Override
-                    public void run() {
-                        if (mWorkspace != null) {
-                            mWorkspace.moveToDefaultScreen();
-                        }
-                    }
-                });
-            }
-        }
 
         TraceHelper.endSection("NEW_INTENT");
     }
@@ -1499,7 +1408,7 @@
             outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getNextPage());
 
         }
-        outState.putInt(RUNTIME_STATE, mState.ordinal());
+        outState.putInt(RUNTIME_STATE, mStateManager.getState().ordinal);
 
 
         AbstractFloatingView widgets = AbstractFloatingView
@@ -1557,10 +1466,6 @@
         mAppWidgetHost = null;
 
         TextKeyListener.getInstance().release();
-
-        ((AccessibilityManager) getSystemService(ACCESSIBILITY_SERVICE))
-                .removeAccessibilityStateChangeListener(this);
-
         WallpaperColorInfo.getInstance(this).setOnThemeChangeListener(null);
 
         LauncherAnimUtils.onDestroyActivity();
@@ -1620,7 +1525,7 @@
         }
 
         // We need to show the workspace after starting the search
-        showWorkspace(true);
+        mStateManager.goToState(NORMAL);
     }
 
     /**
@@ -1712,7 +1617,7 @@
                 @Override
                 public void run() {
                     // Exit spring loaded mode if necessary after adding the widget
-                    exitSpringLoadedDragMode(SPRING_LOADED_EXIT_DELAY);
+                    mStateManager.goToState(NORMAL, SPRING_LOADED_EXIT_DELAY);
                 }
             };
             completeAddAppWidget(appWidgetId, info, boundWidget, addFlowHandler.getProviderInfo(this));
@@ -1893,12 +1798,9 @@
         AbstractFloatingView topView = AbstractFloatingView.getTopOpenView(this);
         if (topView != null) {
             topView.onBackPressed();
-        } else if (isAppsViewVisible()) {
-            ued.logActionCommand(Action.Command.BACK, ContainerType.ALLAPPS);
-            showWorkspace(true);
-        } else if (mWorkspace.isInOverviewMode()) {
-            ued.logActionCommand(Action.Command.BACK, ContainerType.OVERVIEW);
-            showWorkspace(true);
+        } else if (!isInState(NORMAL)) {
+            ued.logActionCommand(Action.Command.BACK, mStateManager.getState().containerType);
+            mStateManager.goToState(NORMAL);
         } else {
             // Back button is a no-op here, but give at least some feedback for the button press
             mWorkspace.showOutlinesTemporarily();
@@ -1922,23 +1824,23 @@
         }
 
         if (v instanceof Workspace) {
-            if (mWorkspace.isInOverviewMode()) {
+            if (isInState(OVERVIEW)) {
                 getUserEventDispatcher().logActionOnContainer(LauncherLogProto.Action.Type.TOUCH,
                         LauncherLogProto.Action.Direction.NONE,
                         LauncherLogProto.ContainerType.OVERVIEW, mWorkspace.getCurrentPage());
-                showWorkspace(true);
+                mStateManager.goToState(NORMAL);
             }
             return;
         }
 
         if (v instanceof CellLayout) {
-            if (mWorkspace.isInOverviewMode()) {
+            if (isInState(OVERVIEW)) {
                 int page = mWorkspace.indexOfChild(v);
                 getUserEventDispatcher().logActionOnContainer(LauncherLogProto.Action.Type.TOUCH,
                         LauncherLogProto.Action.Direction.NONE,
                         LauncherLogProto.ContainerType.OVERVIEW, page);
                 mWorkspace.snapToPageFromOverView(page);
-                showWorkspace(true);
+                mStateManager.goToState(NORMAL);
             }
             return;
         }
@@ -2010,12 +1912,12 @@
      */
     protected void onClickAllAppsButton(View v) {
         if (LOGD) Log.d(TAG, "onClickAllAppsButton");
-        if (!isAppsViewVisible()) {
+        if (!isInState(ALL_APPS)) {
             getUserEventDispatcher().logActionOnControl(Action.Touch.TAP,
                     ControlType.ALL_APPS_BUTTON);
-            showAppsView(true /* animated */);
+            mStateManager.goToState(ALL_APPS);
         } else {
-            showWorkspace(true);
+            mStateManager.goToState(NORMAL);
         }
     }
 
@@ -2066,10 +1968,10 @@
         // Open shortcut
         final ShortcutInfo shortcut = (ShortcutInfo) tag;
 
-        if (shortcut.isDisabled != 0) {
-            if ((shortcut.isDisabled &
-                    ~ShortcutInfo.FLAG_DISABLED_SUSPENDED &
-                    ~ShortcutInfo.FLAG_DISABLED_QUIET_USER) == 0) {
+        if (shortcut.isDisabled()) {
+            if ((shortcut.runtimeStatusFlags &
+                    ~FLAG_DISABLED_SUSPENDED &
+                    ~FLAG_DISABLED_QUIET_USER) == 0) {
                 // If the app is only disabled because of the above flags, launch activity anyway.
                 // Framework will tell the user why the app is suspended.
             } else {
@@ -2080,10 +1982,10 @@
                 }
                 // Otherwise just use a generic error message.
                 int error = R.string.activity_not_available;
-                if ((shortcut.isDisabled & ShortcutInfo.FLAG_DISABLED_SAFEMODE) != 0) {
+                if ((shortcut.runtimeStatusFlags & FLAG_DISABLED_SAFEMODE) != 0) {
                     error = R.string.safemode_shortcut_error;
-                } else if ((shortcut.isDisabled & ShortcutInfo.FLAG_DISABLED_BY_PUBLISHER) != 0 ||
-                        (shortcut.isDisabled & ShortcutInfo.FLAG_DISABLED_LOCKED_USER) != 0) {
+                } else if ((shortcut.runtimeStatusFlags & FLAG_DISABLED_BY_PUBLISHER) != 0 ||
+                        (shortcut.runtimeStatusFlags & FLAG_DISABLED_LOCKED_USER) != 0) {
                     error = R.string.shortcut_not_available;
                 }
                 Toast.makeText(this, error, Toast.LENGTH_SHORT).show();
@@ -2119,7 +2021,6 @@
             throw new IllegalArgumentException("Input must have a valid intent");
         }
         startActivitySafely(v, intent, item);
-        getUserEventDispatcher().logAppLaunch(v, intent); // TODO for discovered apps b/35802115
     }
 
     /**
@@ -2141,19 +2042,6 @@
     }
 
     /**
-     * Event handler for the (Add) Widgets button that appears after a long press
-     * on the home screen.
-     */
-    public void onClickAddWidgetButton(View view) {
-        if (LOGD) Log.d(TAG, "onClickAddWidgetButton");
-        if (mIsSafeModeEnabled) {
-            Toast.makeText(this, R.string.safemode_widget_error, Toast.LENGTH_SHORT).show();
-        } else {
-            WidgetsFullSheet.show(this, true /* animated */);
-        }
-    }
-
-    /**
      * Event handler for the wallpaper picker button that appears after a long press
      * on the home screen.
      */
@@ -2175,35 +2063,22 @@
             intent.setPackage(pickerPackage);
         }
 
-        intent.setSourceBounds(getViewBounds(v));
+        final Bundle launchOptions;
+        if (v != null) {
+            intent.setSourceBounds(getViewBounds(v));
+            // If there is no target package, use the default intent chooser animation
+            launchOptions = hasTargetPackage ? getActivityLaunchOptions(v) : null;
+        } else {
+            launchOptions = null;
+        }
         try {
-            startActivityForResult(intent, REQUEST_PICK_WALLPAPER,
-                    // If there is no target package, use the default intent chooser animation
-                    hasTargetPackage ? getActivityLaunchOptions(v) : null);
+            startActivityForResult(intent, REQUEST_PICK_WALLPAPER, launchOptions);
         } catch (ActivityNotFoundException e) {
             setWaitingForResult(null);
             Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
         }
     }
 
-    /**
-     * Event handler for a click on the settings button that appears after a long press
-     * on the home screen.
-     */
-    public void onClickSettingsButton(View v) {
-        if (LOGD) Log.d(TAG, "onClickSettingsButton");
-        Intent intent = new Intent(Intent.ACTION_APPLICATION_PREFERENCES)
-                .setPackage(getPackageName());
-        intent.setSourceBounds(getViewBounds(v));
-        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        startActivity(intent, getActivityLaunchOptions(v));
-    }
-
-    @Override
-    public void onAccessibilityStateChanged(boolean enabled) {
-        mDragLayer.onAccessibilityStateChanged(enabled);
-    }
-
     private void startShortcutIntentSafely(Intent intent, Bundle optsBundle, ItemInfo info) {
         try {
             StrictMode.VmPolicy oldPolicy = StrictMode.getVmPolicy();
@@ -2280,9 +2155,10 @@
     }
 
     public boolean startActivitySafely(View v, Intent intent, ItemInfo item) {
+        mAppLaunchSuccess = false;
         if (mIsSafeModeEnabled && !Utilities.isSystemApp(this, intent)) {
             Toast.makeText(this, R.string.safemode_shortcut_error, Toast.LENGTH_SHORT).show();
-            return false;
+            return mAppLaunchSuccess;
         }
         // Only launch using the new animation if the shortcut has not opted out (this is a
         // private contract between launcher and may be ignored in the future).
@@ -2322,12 +2198,13 @@
                 btv.setStayPressed(true);
                 setOnResumeCallback(btv);
             }
-            return true;
+            mAppLaunchSuccess = true;
+            getUserEventDispatcher().logAppLaunch(v, intent); // TODO for discovered apps b/35802115
         } catch (ActivityNotFoundException|SecurityException e) {
             Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
             Log.e(TAG, "Unable to launch. tag=" + item + " intent=" + intent, e);
         }
-        return false;
+        return mAppLaunchSuccess;
     }
 
     @Override
@@ -2340,18 +2217,18 @@
     public boolean onLongClick(View v) {
         if (!isDraggingEnabled()) return false;
         if (isWorkspaceLocked()) return false;
-        if (mState != State.WORKSPACE) return false;
+        if (!isInState(NORMAL) && !isInState(OVERVIEW)) return false;
 
         boolean ignoreLongPressToOverview =
                 mDeviceProfile.shouldIgnoreLongPressToOverview(mLastDispatchTouchEventX);
 
         if (v instanceof Workspace) {
-            if (!mWorkspace.isInOverviewMode()) {
+            if (!isInState(OVERVIEW)) {
                 if (!mWorkspace.isTouchActive() && !ignoreLongPressToOverview) {
                     getUserEventDispatcher().logActionOnContainer(Action.Touch.LONGPRESS,
                             Action.Direction.NONE, ContainerType.WORKSPACE,
                             mWorkspace.getCurrentPage());
-                    showOverviewMode(true);
+                    UiFactory.onWorkspaceLongPress(this);
                     mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
                             HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
                     return true;
@@ -2377,7 +2254,7 @@
         if (!mDragController.isDragging()) {
             if (itemUnderLongClick == null) {
                 // User long pressed on empty space
-                if (mWorkspace.isInOverviewMode()) {
+                if (mWorkspace.isPageRearrangeEnabled()) {
                     mWorkspace.startReordering(v);
                     getUserEventDispatcher().logActionOnContainer(Action.Touch.LONGPRESS,
                             Action.Direction.NONE, ContainerType.OVERVIEW);
@@ -2388,7 +2265,7 @@
                     getUserEventDispatcher().logActionOnContainer(Action.Touch.LONGPRESS,
                             Action.Direction.NONE, ContainerType.WORKSPACE,
                             mWorkspace.getCurrentPage());
-                    showOverviewMode(true);
+                    UiFactory.onWorkspaceLongPress(this);
                 }
                 mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
                         HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
@@ -2427,17 +2304,6 @@
         }
     }
 
-    /**
-     * For overridden classes.
-     */
-    public boolean isAllAppsVisible() {
-        return isAppsViewVisible();
-    }
-
-    public boolean isAppsViewVisible() {
-        return mState == State.APPS;
-    }
-
     @Override
     public void onTrimMemory(int level) {
         super.onTrimMemory(level);
@@ -2454,184 +2320,16 @@
         }
     }
 
-    public boolean showWorkspace(boolean animated) {
-        return showWorkspace(animated, null);
-    }
-
-    public boolean showWorkspace(boolean animated, Runnable onCompleteRunnable) {
-        boolean changed = mState != State.WORKSPACE ||
-                mWorkspace.getState() != LauncherState.NORMAL;
-        if (changed || mAllAppsController.isTransitioning()) {
-            mWorkspace.setVisibility(View.VISIBLE);
-            mStateTransitionAnimation.startAnimationToWorkspace(mState, mWorkspace.getState(),
-                    LauncherState.NORMAL, animated, onCompleteRunnable);
-
-            // Set focus to the AppsCustomize button
-            if (mAllAppsButton != null) {
-                mAllAppsButton.requestFocus();
-            }
-        }
-
-        // Change the state *after* we've called all the transition code
-        setState(State.WORKSPACE);
-
-        if (changed) {
-            // Send an accessibility event to announce the context change
-            getWindow().getDecorView()
-                    .sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
-        }
-        return changed;
-    }
-
-    /**
-     * Shows the overview button.
-     */
-    public void showOverviewMode(boolean animated) {
-        showOverviewMode(animated, false);
-    }
-
-    /**
-     * Shows the overview button, and if {@param requestButtonFocus} is set, will force the focus
-     * onto one of the overview panel buttons.
-     */
-    void showOverviewMode(boolean animated, boolean requestButtonFocus) {
-        Runnable postAnimRunnable = null;
-        if (requestButtonFocus) {
-            postAnimRunnable = new Runnable() {
-                @Override
-                public void run() {
-                    // Hitting the menu button when in touch mode does not trigger touch mode to
-                    // be disabled, so if requested, force focus on one of the overview panel
-                    // buttons.
-                    mOverviewPanel.requestFocusFromTouch();
-                }
-            };
-        }
-        mWorkspace.setVisibility(View.VISIBLE);
-        mStateTransitionAnimation.startAnimationToWorkspace(mState, mWorkspace.getState(),
-                LauncherState.OVERVIEW, animated, postAnimRunnable);
-        setState(State.WORKSPACE);
-
-        // If animated from long press, then don't allow any of the controller in the drag
-        // layer to intercept any remaining touch.
-        mWorkspace.requestDisallowInterceptTouchEvent(animated);
-    }
-
-    private void setState(State state) {
-        this.mState = state;
-        updateSoftInputMode();
-    }
-
-    private void updateSoftInputMode() {
-        if (FeatureFlags.LAUNCHER3_UPDATE_SOFT_INPUT_MODE) {
-            final int mode;
-            if (isAppsViewVisible()) {
-                mode = SOFT_INPUT_MODE_ALL_APPS;
-            } else {
-                mode = SOFT_INPUT_MODE_DEFAULT;
-            }
-            getWindow().setSoftInputMode(mode);
-        }
-    }
-
-    /**
-     * Shows the apps view.
-     *
-     * @return whether the current from and to state allowed this operation
-     */
-    // TODO: calling method should use the return value so that when {@code false} is returned
-    // the workspace transition doesn't fall into invalid state.
-    public boolean showAppsView(boolean animated) {
-        markAppsViewShown();
-
-        if (!(mState == State.WORKSPACE ||
-                (mState == State.APPS && mAllAppsController.isTransitioning()))) {
-            return false;
-        }
-
-        // This is a safe and supported transition to bypass spring_loaded mode.
-        if (mExitSpringLoadedModeRunnable != null) {
-            mHandler.removeCallbacks(mExitSpringLoadedModeRunnable);
-            mExitSpringLoadedModeRunnable = null;
-        }
-
-        mStateTransitionAnimation.startAnimationToAllApps(animated);
-
-        // Change the state *after* we've called all the transition code
-        setState(State.APPS);
-        AbstractFloatingView.closeAllOpenViews(this);
-
-        // Send an accessibility event to announce the context change
-        getWindow().getDecorView()
-                .sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
-        return true;
-    }
-
-    public void enterSpringLoadedDragMode() {
-        if (LOGD) Log.d(TAG, String.format("enterSpringLoadedDragMode [mState=%s", mState.name()));
-        if (isStateSpringLoaded()) {
-            return;
-        }
-
-        // Lock the orientation:
-        if (mRotationEnabled) {
-            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LOCKED);
-        }
-
-        // Prevent any Un/InstallShortcutReceivers from updating the db while we are
-        // in spring loaded mode
-        InstallShortcutReceiver.enableInstallQueue(InstallShortcutReceiver.FLAG_DRAG_AND_DROP);
-
-        mStateTransitionAnimation.startAnimationToWorkspace(mState, mWorkspace.getState(),
-                LauncherState.SPRING_LOADED, true /* animated */,
-                null /* onCompleteRunnable */);
-        setState(State.WORKSPACE_SPRING_LOADED);
-    }
-
-    public void exitSpringLoadedDragMode(int delay) {
-        exitSpringLoadedDragMode(delay, null);
-    }
-
-    public void exitSpringLoadedDragMode(int delay, final Runnable onCompleteRunnable) {
-        if (!isStateSpringLoaded()) return;
-
-        // Unlock rotation lock
-        unlockScreenOrientation(false);
-
-        // Re-enable any Un/InstallShortcutReceiver and now process any queued items
-        InstallShortcutReceiver.disableAndFlushInstallQueue(
-                InstallShortcutReceiver.FLAG_DRAG_AND_DROP, this);
-
-        if (mExitSpringLoadedModeRunnable != null) {
-            mHandler.removeCallbacks(mExitSpringLoadedModeRunnable);
-        }
-        mExitSpringLoadedModeRunnable = new Runnable() {
-            @Override
-            public void run() {
-                showWorkspace(true, onCompleteRunnable);
-                mExitSpringLoadedModeRunnable = null;
-            }
-        };
-        mHandler.postDelayed(mExitSpringLoadedModeRunnable, delay);
-    }
-
-    boolean isStateSpringLoaded() {
-        return mState == State.WORKSPACE_SPRING_LOADED;
-    }
-
     @Override
     public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
         final boolean result = super.dispatchPopulateAccessibilityEvent(event);
         final List<CharSequence> text = event.getText();
         text.clear();
         // Populate event with a fake title based on the current state.
-        if (mState == State.APPS) {
-            text.add(getString(R.string.all_apps_button_label));
-        } else if (mWorkspace != null) {
-            text.add(mWorkspace.getCurrentPageDescription());
-        } else {
-            text.add(getString(R.string.all_apps_home_button_label));
-        }
+        // TODO: When can workspace be null?
+        text.add(mWorkspace == null
+                ? getString(R.string.all_apps_home_button_label)
+                : mStateManager.getState().getDescription(this));
         return result;
     }
 
@@ -3182,7 +2880,7 @@
 
         if (mAppsView != null) {
             Executor pendingExecutor = getPendingExecutor();
-            if (pendingExecutor != null && mState != State.APPS) {
+            if (pendingExecutor != null && !isInState(ALL_APPS)) {
                 // Wait until the fade in animation has finished before setting all apps list.
                 pendingExecutor.execute(r);
                 return;
@@ -3367,30 +3065,14 @@
         mModel.refreshAndBindWidgetsAndShortcuts(packageUser);
     }
 
-    public void unlockScreenOrientation(boolean immediate) {
-        if (mRotationEnabled) {
-            if (immediate) {
-                setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
-            } else {
-                mHandler.postDelayed(new Runnable() {
-                    public void run() {
-                        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
-                    }
-                }, RESTORE_SCREEN_ORIENTATION_DELAY);
-            }
-        }
-    }
-
-    private void markAppsViewShown() {
-        if (mSharedPrefs.getBoolean(APPS_VIEW_SHOWN, false)) {
-            return;
-        }
-        mSharedPrefs.edit().putBoolean(APPS_VIEW_SHOWN, true).apply();
+    public boolean isRotationEnabled () {
+        return mRotationEnabled;
     }
 
     private boolean shouldShowDiscoveryBounce() {
-        UserManagerCompat um = UserManagerCompat.getInstance(this);
-        return mState == State.WORKSPACE && !mSharedPrefs.getBoolean(APPS_VIEW_SHOWN, false) && !um.isDemoUser();
+        return isInState(NORMAL)
+                && !mSharedPrefs.getBoolean(AllAppsState.APPS_VIEW_SHOWN, false)
+                && !UserManagerCompat.getInstance(this).isDemoUser();
     }
 
     /**
@@ -3448,7 +3130,7 @@
             List<KeyboardShortcutGroup> data, Menu menu, int deviceId) {
 
         ArrayList<KeyboardShortcutInfo> shortcutInfos = new ArrayList<>();
-        if (mState == State.WORKSPACE) {
+        if (isInState(NORMAL)) {
             shortcutInfos.add(new KeyboardShortcutInfo(getString(R.string.all_apps_button_label),
                     KeyEvent.KEYCODE_A, KeyEvent.META_CTRL_ON));
         }
@@ -3474,8 +3156,8 @@
         if (event.hasModifiers(KeyEvent.META_CTRL_ON)) {
             switch (keyCode) {
                 case KeyEvent.KEYCODE_A:
-                    if (mState == State.WORKSPACE) {
-                        showAppsView(true);
+                    if (isInState(NORMAL)) {
+                        getStateManager().goToState(ALL_APPS);
                         return true;
                     }
                     break;
@@ -3486,7 +3168,7 @@
                             && mAccessibilityDelegate.performAction(focusedView,
                                     (ItemInfo) focusedView.getTag(),
                                     LauncherAccessibilityDelegate.DEEP_SHORTCUTS)) {
-                        BaseActionPopup.getOpen(this).requestFocus();
+                        PopupContainerWithArrow.getOpen(this).requestFocus();
                         return true;
                     }
                     break;
diff --git a/src/com/android/launcher3/LauncherAnimUtils.java b/src/com/android/launcher3/LauncherAnimUtils.java
index 3585110..9869fdf 100644
--- a/src/com/android/launcher3/LauncherAnimUtils.java
+++ b/src/com/android/launcher3/LauncherAnimUtils.java
@@ -38,7 +38,6 @@
     public static final int OVERVIEW_TRANSITION_MS = 250;
     public static final int SPRING_LOADED_TRANSITION_MS = 150;
     public static final int SPRING_LOADED_EXIT_DELAY = 500;
-    public static final int SPRING_LOADED_EXIT_NEXT_FRAME = 0;
 
     static WeakHashMap<Animator, Object> sAnimators = new WeakHashMap<Animator, Object>();
     static Animator.AnimatorListener sEndAnimListener = new Animator.AnimatorListener() {
@@ -165,4 +164,17 @@
                     view.setScaleY(scale);
                 }
             };
+
+    public static final Property<View, Float> ELEVATION =
+            new Property<View, Float>(Float.class, "elevation") {
+                @Override
+                public Float get(View view) {
+                    return view.getElevation();
+                }
+
+                @Override
+                public void set(View view, Float elevation) {
+                    view.setElevation(elevation);
+                }
+            };
 }
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index dfb30fd..0136c70 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -27,12 +27,10 @@
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.PackageInstallerCompat;
 import com.android.launcher3.compat.UserManagerCompat;
-import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.notification.NotificationListener;
 import com.android.launcher3.util.ConfigMonitor;
 import com.android.launcher3.util.Preconditions;
 import com.android.launcher3.util.SettingsObserver;
-import com.android.launcher3.util.TestingUtils;
 
 import java.util.concurrent.Callable;
 import java.util.concurrent.ExecutionException;
@@ -88,10 +86,6 @@
         Preconditions.assertUIThread();
         mContext = context;
 
-        if (TestingUtils.MEMORY_DUMP_ENABLED) {
-            TestingUtils.startTrackingMemory(mContext);
-        }
-
         mInvariantDeviceProfile = new InvariantDeviceProfile(mContext);
         mIconCache = new IconCache(mContext, mInvariantDeviceProfile);
         mWidgetCache = new WidgetPreviewLoader(mContext, mIconCache);
diff --git a/src/com/android/launcher3/LauncherAppWidgetHost.java b/src/com/android/launcher3/LauncherAppWidgetHost.java
index 70440fa..9aa74b3 100644
--- a/src/com/android/launcher3/LauncherAppWidgetHost.java
+++ b/src/com/android/launcher3/LauncherAppWidgetHost.java
@@ -16,7 +16,8 @@
 
 package com.android.launcher3;
 
-import android.app.Activity;
+import static android.app.Activity.RESULT_CANCELED;
+
 import android.appwidget.AppWidgetHost;
 import android.appwidget.AppWidgetHostView;
 import android.appwidget.AppWidgetManager;
@@ -41,12 +42,17 @@
  */
 public class LauncherAppWidgetHost extends AppWidgetHost {
 
+    private static final int FLAG_LISTENING = 1;
+    private static final int FLAG_RESUMED = 1 << 1;
+    private static final int FLAG_LISTEN_IF_RESUMED = 1 << 2;
+
     public static final int APPWIDGET_HOST_ID = 1024;
 
     private final ArrayList<ProviderChangedListener> mProviderChangeListeners = new ArrayList<>();
     private final SparseArray<LauncherAppWidgetHostView> mViews = new SparseArray<>();
 
     private final Context mContext;
+    private int mFlags = FLAG_RESUMED;
 
     public LauncherAppWidgetHost(Context context) {
         super(context, APPWIDGET_HOST_ID);
@@ -66,7 +72,7 @@
         if (FeatureFlags.GO_DISABLE_WIDGETS) {
             return;
         }
-
+        mFlags |= FLAG_LISTENING;
         try {
             super.startListening();
         } catch (Exception e) {
@@ -85,10 +91,59 @@
         if (FeatureFlags.GO_DISABLE_WIDGETS) {
             return;
         }
-
+        mFlags &= ~FLAG_LISTENING;
         super.stopListening();
     }
 
+    /**
+     * Updates the resumed state of the host.
+     * When a host is not resumed, it defers calls to startListening until host is resumed again.
+     * But if the host was already listening, it will not call stopListening.
+     *
+     * @see #setListenIfResumed(boolean)
+     */
+    public void setResumed(boolean isResumed) {
+        if (isResumed == ((mFlags & FLAG_RESUMED) != 0)) {
+            return;
+        }
+        if (isResumed) {
+            mFlags |= FLAG_RESUMED;
+            // Start listening if we were supposed to start listening on resume
+            if ((mFlags & FLAG_LISTEN_IF_RESUMED) != 0 && (mFlags & FLAG_LISTENING) == 0) {
+                startListening();
+            }
+        } else {
+            mFlags &= ~FLAG_RESUMED;
+        }
+    }
+
+    /**
+     * Updates the listening state of the host. If the host is not resumed, startListening is
+     * deferred until next resume.
+     *
+     * @see #setResumed(boolean)
+     */
+    public void setListenIfResumed(boolean listenIfResumed) {
+        if (!Utilities.ATLEAST_NOUGAT_MR1) {
+            return;
+        }
+        if (listenIfResumed == ((mFlags & FLAG_LISTEN_IF_RESUMED) != 0)) {
+            return;
+        }
+        if (listenIfResumed) {
+            mFlags |= FLAG_LISTEN_IF_RESUMED;
+            if ((mFlags & FLAG_RESUMED) != 0) {
+                // If we are resumed, start listening immediately. Note we do not check for
+                // duplicate calls before calling startListening as startListening is safe to call
+                // multiple times.
+                startListening();
+            }
+        } else {
+            mFlags &= ~FLAG_LISTEN_IF_RESUMED;
+            stopListening();
+        }
+    }
+
     @Override
     public int allocateAppWidgetId() {
         if (FeatureFlags.GO_DISABLE_WIDGETS) {
@@ -203,12 +258,7 @@
     }
 
     private void sendActionCancelled(final BaseActivity activity, final int requestCode) {
-        new Handler().post(new Runnable() {
-            @Override
-            public void run() {
-                activity.onActivityResult(requestCode, Activity.RESULT_CANCELED, null);
-            }
-        });
+        new Handler().post(() -> activity.onActivityResult(requestCode, RESULT_CANCELED, null));
     }
 
     /**
diff --git a/src/com/android/launcher3/LauncherCallbacks.java b/src/com/android/launcher3/LauncherCallbacks.java
index 78d753a..928258f 100644
--- a/src/com/android/launcher3/LauncherCallbacks.java
+++ b/src/com/android/launcher3/LauncherCallbacks.java
@@ -45,7 +45,6 @@
     void onPause();
     void onDestroy();
     void onSaveInstanceState(Bundle outState);
-    void onNewIntent(Intent intent);
     void onActivityResult(int requestCode, int resultCode, Intent data);
     void onRequestPermissionsResult(int requestCode, String[] permissions,
             int[] grantResults);
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index 25a698b..98568e4 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -44,7 +44,6 @@
 import android.os.Handler;
 import android.os.Message;
 import android.os.Process;
-import android.os.Trace;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.text.TextUtils;
@@ -86,7 +85,7 @@
      */
     public static final int SCHEMA_VERSION = 27;
 
-    public static final String AUTHORITY = (BuildConfig.APPLICATION_ID + ".settings").intern();
+    public static final String AUTHORITY = FeatureFlags.AUTHORITY;
 
     static final String EMPTY_DATABASE_CREATED = "EMPTY_DATABASE_CREATED";
 
diff --git a/src/com/android/launcher3/LauncherState.java b/src/com/android/launcher3/LauncherState.java
index 8ddc491..d6cd8a3 100644
--- a/src/com/android/launcher3/LauncherState.java
+++ b/src/com/android/launcher3/LauncherState.java
@@ -17,55 +17,118 @@
 
 import static android.view.View.IMPORTANT_FOR_ACCESSIBILITY_AUTO;
 import static android.view.View.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS;
+import static android.view.accessibility.AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED;
 
-import static com.android.launcher3.LauncherAnimUtils.ALL_APPS_TRANSITION_MS;
-import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
-import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_TRANSITION_MS;
-import static com.android.launcher3.StateFlags.FLAG_DISABLE_ACCESSIBILITY;
-import static com.android.launcher3.StateFlags.FLAG_HIDE_HOTSEAT;
-import static com.android.launcher3.StateFlags.FLAG_MULTI_PAGE;
-import static com.android.launcher3.StateFlags.FLAG_SHOW_SCRIM;
+import android.view.View;
 
+import com.android.launcher3.states.AllAppsState;
+import com.android.launcher3.states.SpringLoadedState;
+import com.android.launcher3.uioverrides.OverviewState;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 
-interface StateFlags {
-    int FLAG_SHOW_SCRIM = 1 << 0;
-    int FLAG_MULTI_PAGE = 1 << 1;
-    int FLAG_HIDE_HOTSEAT = 1 << 2;
-    int FLAG_DISABLE_ACCESSIBILITY = 1 << 3;
-}
+import java.util.Arrays;
+
 
 /**
- * Various states for launcher
+ * Base state for various states used for the Launcher
  */
-public enum LauncherState {
+public class LauncherState {
 
-    NORMAL          (ContainerType.WORKSPACE, 0, 0),
-    ALL_APPS        (ContainerType.ALLAPPS, ALL_APPS_TRANSITION_MS, FLAG_DISABLE_ACCESSIBILITY),
-    SPRING_LOADED   (ContainerType.WORKSPACE, SPRING_LOADED_TRANSITION_MS,
-            FLAG_SHOW_SCRIM | FLAG_MULTI_PAGE | FLAG_DISABLE_ACCESSIBILITY),
-    OVERVIEW        (ContainerType.OVERVIEW, OVERVIEW_TRANSITION_MS,
-            FLAG_SHOW_SCRIM | FLAG_MULTI_PAGE | FLAG_HIDE_HOTSEAT);
+    protected static final int FLAG_SHOW_SCRIM = 1 << 0;
+    protected static final int FLAG_MULTI_PAGE = 1 << 1;
+    protected static final int FLAG_DISABLE_ACCESSIBILITY = 1 << 2;
+    protected static final int FLAG_DO_NOT_RESTORE = 1 << 3;
 
+    private static final LauncherState[] sAllStates = new LauncherState[4];
+
+    public static final LauncherState NORMAL = new LauncherState(0, ContainerType.WORKSPACE,
+            0, 1f, FLAG_DO_NOT_RESTORE);
+
+    public static final LauncherState ALL_APPS = new AllAppsState(1);
+
+    public static final LauncherState SPRING_LOADED = new SpringLoadedState(2);
+
+    public static final LauncherState OVERVIEW = new OverviewState(3);
+
+    public final int ordinal;
+
+    /**
+     * Used for containerType in {@link com.android.launcher3.logging.UserEventDispatcher}
+     */
     public final int containerType;
 
+    /**
+     * True if the state can be persisted across activity restarts.
+     */
+    public final boolean doNotRestore;
+
+    /**
+     * True if workspace has multiple pages visible.
+     */
     public final boolean hasMultipleVisiblePages;
+
+    /**
+     * Accessibility flag for workspace and its pages.
+     * @see android.view.View#setImportantForAccessibility(int)
+     */
     public final int workspaceAccessibilityFlag;
 
-    // Properties related to state transition animation.
+    /**
+     * Properties related to state transition animation
+     *
+     * @see WorkspaceStateTransitionAnimation
+     */
     public final boolean hasScrim;
-    public final boolean hideHotseat;
     public final int transitionDuration;
 
-    LauncherState(int containerType, int transitionDuration, int flags) {
+    /**
+     * Fraction shift in the vertical translation UI and related properties
+     *
+     * @see com.android.launcher3.allapps.AllAppsTransitionController
+     */
+    public final float verticalProgress;
+
+    public LauncherState(int id, int containerType, int transitionDuration, float verticalProgress,
+            int flags) {
         this.containerType = containerType;
         this.transitionDuration = transitionDuration;
 
         this.hasScrim = (flags & FLAG_SHOW_SCRIM) != 0;
         this.hasMultipleVisiblePages = (flags & FLAG_MULTI_PAGE) != 0;
-        this.hideHotseat = (flags & FLAG_HIDE_HOTSEAT) != 0;
         this.workspaceAccessibilityFlag = (flags & FLAG_DISABLE_ACCESSIBILITY) != 0
                 ? IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS
                 : IMPORTANT_FOR_ACCESSIBILITY_AUTO;
+        this.doNotRestore = (flags & FLAG_DO_NOT_RESTORE) != 0;
+
+        this.verticalProgress = verticalProgress;
+
+        this.ordinal = id;
+        sAllStates[id] = this;
+    }
+
+    public static LauncherState[] values() {
+        return Arrays.copyOf(sAllStates, sAllStates.length);
+    }
+
+    public float[] getWorkspaceScaleAndTranslation(Launcher launcher) {
+        return new float[] {1, 0};
+    }
+
+    public void onStateEnabled(Launcher launcher) {
+        dispatchWindowStateChanged(launcher);
+    }
+
+    public void onStateDisabled(Launcher launcher) { }
+
+    public View getFinalFocus(Launcher launcher) {
+        return launcher.getWorkspace();
+    }
+
+    public String getDescription(Launcher launcher) {
+        return launcher.getWorkspace().getCurrentPageDescription();
+    }
+
+    protected static void dispatchWindowStateChanged(Launcher launcher) {
+        launcher.getWindow().getDecorView().sendAccessibilityEvent(TYPE_WINDOW_STATE_CHANGED);
     }
 }
diff --git a/src/com/android/launcher3/LauncherStateManager.java b/src/com/android/launcher3/LauncherStateManager.java
new file mode 100644
index 0000000..1e6016b
--- /dev/null
+++ b/src/com/android/launcher3/LauncherStateManager.java
@@ -0,0 +1,338 @@
+/*
+ * Copyright (C) 2015 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 static com.android.launcher3.LauncherState.NORMAL;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.AnimatorSet;
+import android.os.Handler;
+import android.os.Looper;
+import android.view.View;
+
+import com.android.launcher3.anim.AnimationLayerSet;
+import com.android.launcher3.anim.AnimationSuccessListener;
+import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.uioverrides.UiFactory;
+
+/**
+ * TODO: figure out what kind of tests we can write for this
+ *
+ * Things to test when changing the following class.
+ *   - Home from workspace
+ *          - from center screen
+ *          - from other screens
+ *   - Home from all apps
+ *          - from center screen
+ *          - from other screens
+ *   - Back from all apps
+ *          - from center screen
+ *          - from other screens
+ *   - Launch app from workspace and quit
+ *          - with back
+ *          - with home
+ *   - Launch app from all apps and quit
+ *          - with back
+ *          - with home
+ *   - Go to a screen that's not the default, then all
+ *     apps, and launch and app, and go back
+ *          - with back
+ *          -with home
+ *   - On workspace, long press power and go back
+ *          - with back
+ *          - with home
+ *   - On all apps, long press power and go back
+ *          - with back
+ *          - with home
+ *   - On workspace, power off
+ *   - On all apps, power off
+ *   - Launch an app and turn off the screen while in that app
+ *          - Go back with home key
+ *          - Go back with back key  TODO: make this not go to workspace
+ *          - From all apps
+ *          - From workspace
+ *   - Enter and exit car mode (becuase it causes an extra configuration changed)
+ *          - From all apps
+ *          - From the center workspace
+ *          - From another workspace
+ */
+public class LauncherStateManager {
+
+    public static final String TAG = "StateManager";
+
+    private final AnimationConfig mConfig = new AnimationConfig();
+    private final Handler mUiHandler;
+    private final Launcher mLauncher;
+
+    private StateHandler[] mStateHandlers;
+    private LauncherState mState = NORMAL;
+
+    private StateListener mStateListener;
+
+    public LauncherStateManager(Launcher l) {
+        mUiHandler = new Handler(Looper.getMainLooper());
+        mLauncher = l;
+    }
+
+    public LauncherState getState() {
+        return mState;
+    }
+
+    private StateHandler[] getStateHandlers() {
+        if (mStateHandlers == null) {
+            mStateHandlers = UiFactory.getStateHandler(mLauncher);
+        }
+        return mStateHandlers;
+    }
+
+    public void setStateListener(StateListener stateListener) {
+        mStateListener = stateListener;
+    }
+
+    /**
+     * @see #goToState(LauncherState, boolean, Runnable)
+     */
+    public void goToState(LauncherState state) {
+        goToState(state, true, 0, null);
+    }
+
+    /**
+     * @see #goToState(LauncherState, boolean, Runnable)
+     */
+    public void goToState(LauncherState state, boolean animated) {
+        goToState(state, animated, 0, null);
+    }
+
+    /**
+     * Changes the Launcher state to the provided state.
+     *
+     * @param animated false if the state should change immediately without any animation,
+     *                true otherwise
+     * @paras onCompleteRunnable any action to perform at the end of the transition, of null.
+     */
+    public void goToState(LauncherState state, boolean animated, Runnable onCompleteRunnable) {
+        goToState(state, animated, 0, onCompleteRunnable);
+    }
+
+    /**
+     * Changes the Launcher state to the provided state after the given delay.
+     */
+    public void goToState(LauncherState state, long delay, Runnable onCompleteRunnable) {
+        goToState(state, true, delay, onCompleteRunnable);
+    }
+
+    /**
+     * Changes the Launcher state to the provided state after the given delay.
+     */
+    public void goToState(LauncherState state, long delay) {
+        goToState(state, true, delay, null);
+    }
+
+    private void goToState(LauncherState state, boolean animated, long delay,
+            Runnable onCompleteRunnable) {
+        if (mLauncher.isInState(state) && mConfig.mCurrentAnimation == null) {
+
+            // Run any queued runnable
+            if (onCompleteRunnable != null) {
+                onCompleteRunnable.run();
+            }
+            return;
+        }
+
+        // Cancel the current animation
+        mConfig.reset();
+
+        if (!animated) {
+            setState(state);
+            for (StateHandler handler : getStateHandlers()) {
+                handler.setState(state);
+            }
+            if (mStateListener != null) {
+                mStateListener.onStateSetImmediately(state);
+            }
+            mLauncher.getUserEventDispatcher().resetElapsedContainerMillis();
+
+            // Run any queued runnable
+            if (onCompleteRunnable != null) {
+                onCompleteRunnable.run();
+            }
+            return;
+        }
+
+        // Since state NORMAL can be reached from multiple states, just assume that the
+        // transition plays in reverse and use the same duration as previous state.
+        mConfig.duration = state == NORMAL ? mState.transitionDuration : state.transitionDuration;
+
+        AnimatorSet animation = createAnimationToNewWorkspaceInternal(state, onCompleteRunnable);
+        Runnable runnable = new StartAnimRunnable(animation, state.getFinalFocus(mLauncher));
+        if (delay > 0) {
+            mUiHandler.postDelayed(runnable, delay);
+        } else {
+            mUiHandler.post(runnable);
+        }
+    }
+
+    /**
+     * Creates a {@link AnimatorPlaybackController} that can be used for a controlled
+     * state transition.
+     * @param state the final state for the transition.
+     * @param duration intended duration for normal playback. Use higher duration for better
+     *                accuracy.
+     */
+    public AnimatorPlaybackController createAnimationToNewWorkspace(
+            LauncherState state, long duration) {
+        mConfig.reset();
+        mConfig.userControlled = true;
+        mConfig.duration = duration;
+        return AnimatorPlaybackController.wrap(
+                createAnimationToNewWorkspaceInternal(state, null), duration);
+    }
+
+    protected AnimatorSet createAnimationToNewWorkspaceInternal(final LauncherState state,
+            final Runnable onCompleteRunnable) {
+        final AnimatorSet animation = LauncherAnimUtils.createAnimatorSet();
+        final AnimationLayerSet layerViews = new AnimationLayerSet();
+
+        for (StateHandler handler : getStateHandlers()) {
+            handler.setStateWithAnimation(state, layerViews, animation, mConfig);
+        }
+        animation.addListener(layerViews);
+        animation.addListener(new AnimationSuccessListener() {
+
+            @Override
+            public void onAnimationStart(Animator animation) {
+                // Change the internal state only when the transition actually starts
+                setState(state);
+                if (mStateListener != null) {
+                    mStateListener.onStateTransitionStart(state);
+                }
+            }
+
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                super.onAnimationEnd(animation);
+                if (mStateListener != null) {
+                    mStateListener.onStateTransitionComplete(mState);
+                }
+            }
+
+            @Override
+            public void onAnimationSuccess(Animator animator) {
+                // Run any queued runnables
+                if (onCompleteRunnable != null) {
+                    onCompleteRunnable.run();
+                }
+
+                mLauncher.getUserEventDispatcher().resetElapsedContainerMillis();
+            }
+        });
+        mConfig.setAnimation(animation);
+        return mConfig.mCurrentAnimation;
+    }
+
+    private void setState(LauncherState state) {
+        mState.onStateDisabled(mLauncher);
+        mState = state;
+        mState.onStateEnabled(mLauncher);
+        mLauncher.getAppWidgetHost().setResumed(state == LauncherState.NORMAL);
+    }
+
+    /**
+     * Cancels the current animation.
+     */
+    public void cancelAnimation() {
+        mConfig.reset();
+    }
+
+    private class StartAnimRunnable implements Runnable {
+
+        private final AnimatorSet mAnim;
+        private final View mViewToFocus;
+
+        public StartAnimRunnable(AnimatorSet anim, View viewToFocus) {
+            mAnim = anim;
+            mViewToFocus = viewToFocus;
+        }
+
+        @Override
+        public void run() {
+            if (mConfig.mCurrentAnimation != mAnim) {
+                return;
+            }
+            if (mViewToFocus != null) {
+                mViewToFocus.requestFocus();
+            }
+            mAnim.start();
+        }
+    }
+
+    public static class AnimationConfig extends AnimatorListenerAdapter {
+        public long duration;
+        public boolean userControlled;
+
+        private AnimatorSet mCurrentAnimation;
+
+        public void reset() {
+            duration = 0;
+            userControlled = false;
+
+            if (mCurrentAnimation != null) {
+                mCurrentAnimation.setDuration(0);
+                mCurrentAnimation.cancel();
+                mCurrentAnimation = null;
+            }
+        }
+
+        @Override
+        public void onAnimationEnd(Animator animation) {
+            if (mCurrentAnimation == animation) {
+                mCurrentAnimation = null;
+            }
+        }
+
+        public void setAnimation(AnimatorSet animation) {
+            mCurrentAnimation = animation;
+            mCurrentAnimation.addListener(this);
+        }
+    }
+
+    public interface StateHandler {
+
+        /**
+         * Updates the UI to {@param state} without any animations
+         */
+        void setState(LauncherState state);
+
+        /**
+         * Sets the UI to {@param state} by animating any changes.
+         */
+        void setStateWithAnimation(LauncherState toState, AnimationLayerSet layerViews,
+                AnimatorSet anim, AnimationConfig config);
+    }
+
+    public interface StateListener {
+
+        /**
+         * Called when the state is set without an animation.
+         */
+        void onStateSetImmediately(LauncherState state);
+
+        void onStateTransitionStart(LauncherState toState);
+        void onStateTransitionComplete(LauncherState finalState);
+    }
+}
diff --git a/src/com/android/launcher3/LauncherStateTransitionAnimation.java b/src/com/android/launcher3/LauncherStateTransitionAnimation.java
deleted file mode 100644
index f07f1bf..0000000
--- a/src/com/android/launcher3/LauncherStateTransitionAnimation.java
+++ /dev/null
@@ -1,332 +0,0 @@
-/*
- * Copyright (C) 2015 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.animation.Animator;
-import android.animation.AnimatorListenerAdapter;
-import android.animation.AnimatorSet;
-import android.util.Log;
-import android.view.View;
-
-import com.android.launcher3.allapps.AllAppsContainerView;
-import com.android.launcher3.allapps.AllAppsTransitionController;
-import com.android.launcher3.anim.AnimationLayerSet;
-import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.util.Thunk;
-
-/**
- * TODO: figure out what kind of tests we can write for this
- *
- * Things to test when changing the following class.
- *   - Home from workspace
- *          - from center screen
- *          - from other screens
- *   - Home from all apps
- *          - from center screen
- *          - from other screens
- *   - Back from all apps
- *          - from center screen
- *          - from other screens
- *   - Launch app from workspace and quit
- *          - with back
- *          - with home
- *   - Launch app from all apps and quit
- *          - with back
- *          - with home
- *   - Go to a screen that's not the default, then all
- *     apps, and launch and app, and go back
- *          - with back
- *          -with home
- *   - On workspace, long press power and go back
- *          - with back
- *          - with home
- *   - On all apps, long press power and go back
- *          - with back
- *          - with home
- *   - On workspace, power off
- *   - On all apps, power off
- *   - Launch an app and turn off the screen while in that app
- *          - Go back with home key
- *          - Go back with back key  TODO: make this not go to workspace
- *          - From all apps
- *          - From workspace
- *   - Enter and exit car mode (becuase it causes an extra configuration changed)
- *          - From all apps
- *          - From the center workspace
- *          - From another workspace
- */
-public class LauncherStateTransitionAnimation {
-
-    public static final String TAG = "LSTAnimation";
-
-    private final AnimationConfig mConfig = new AnimationConfig();
-    @Thunk Launcher mLauncher;
-    @Thunk AnimatorSet mCurrentAnimation;
-    AllAppsTransitionController mAllAppsController;
-
-    public LauncherStateTransitionAnimation(Launcher l, AllAppsTransitionController allAppsController) {
-        mLauncher = l;
-        mAllAppsController = allAppsController;
-    }
-
-    /**
-     * Starts an animation to the apps view.
-     */
-    public void startAnimationToAllApps(boolean animated) {
-        final AllAppsContainerView toView = mLauncher.getAppsView();
-
-        // If for some reason our views aren't initialized, don't animate
-        animated = animated && (toView != null);
-
-        final AnimatorSet animation = LauncherAnimUtils.createAnimatorSet();
-
-        final AnimationLayerSet layerViews = new AnimationLayerSet();
-
-        // Cancel the current animation
-        cancelAnimation();
-
-        if (!animated) {
-            mLauncher.getWorkspace().setState(LauncherState.ALL_APPS);
-
-            mAllAppsController.finishPullUp();
-            toView.setTranslationX(0.0f);
-            toView.setTranslationY(0.0f);
-            toView.setScaleX(1.0f);
-            toView.setScaleY(1.0f);
-            toView.setAlpha(1.0f);
-            toView.setVisibility(View.VISIBLE);
-
-            mLauncher.getUserEventDispatcher().resetElapsedContainerMillis();
-            return;
-        }
-
-        if (!FeatureFlags.LAUNCHER3_PHYSICS) {
-            // We are animating the content view alpha, so ensure we have a layer for it.
-            layerViews.addView(toView);
-        }
-
-        animation.addListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                cleanupAnimation();
-                mLauncher.getUserEventDispatcher().resetElapsedContainerMillis();
-            }
-        });
-
-        mConfig.reset();
-        mAllAppsController.animateToAllApps(animation, mConfig);
-        mLauncher.getWorkspace().setStateWithAnimation(LauncherState.ALL_APPS,
-                layerViews, animation, mConfig);
-
-        Runnable startAnimRunnable = new StartAnimRunnable(animation, toView);
-        mCurrentAnimation = animation;
-        mCurrentAnimation.addListener(layerViews);
-        if (mConfig.shouldPost) {
-            toView.post(startAnimRunnable);
-        } else {
-            startAnimRunnable.run();
-        }
-    }
-
-    /**
-     * Starts an animation to the workspace from the current overlay view.
-     */
-    public void startAnimationToWorkspace(final Launcher.State fromState,
-            final LauncherState fromWorkspaceState, final LauncherState toWorkspaceState,
-            final boolean animated, final Runnable onCompleteRunnable) {
-        if (toWorkspaceState != LauncherState.NORMAL &&
-                toWorkspaceState != LauncherState.SPRING_LOADED &&
-                toWorkspaceState != LauncherState.OVERVIEW) {
-            Log.e(TAG, "Unexpected call to startAnimationToWorkspace");
-        }
-
-        if (fromState == Launcher.State.APPS || mAllAppsController.isTransitioning()) {
-            startAnimationToWorkspaceFromAllApps(fromWorkspaceState, toWorkspaceState,
-                    animated, onCompleteRunnable);
-        } else {
-            startAnimationToNewWorkspaceState(fromWorkspaceState, toWorkspaceState,
-                    animated, onCompleteRunnable);
-        }
-    }
-
-    /**
-     * Starts an animation to the workspace from the apps view.
-     */
-    private void startAnimationToWorkspaceFromAllApps(final LauncherState fromWorkspaceState,
-            final LauncherState toWorkspaceState, boolean animated,
-            final Runnable onCompleteRunnable) {
-        final AllAppsContainerView fromView = mLauncher.getAppsView();
-        // If for some reason our views aren't initialized, don't animate
-        animated = animated & (fromView != null);
-
-        final AnimatorSet animation = LauncherAnimUtils.createAnimatorSet();
-        final AnimationLayerSet layerViews = new AnimationLayerSet();
-
-        // Cancel the current animation
-        cancelAnimation();
-
-        if (!animated) {
-            if (fromWorkspaceState == LauncherState.ALL_APPS) {
-                mAllAppsController.finishPullDown();
-            }
-            fromView.setVisibility(View.GONE);
-            mLauncher.getWorkspace().setState(toWorkspaceState);
-            mLauncher.getUserEventDispatcher().resetElapsedContainerMillis();
-
-            // Run any queued runnables
-            if (onCompleteRunnable != null) {
-                onCompleteRunnable.run();
-            }
-            return;
-        }
-
-        animation.addListener(new AnimatorListenerAdapter() {
-            boolean canceled = false;
-            @Override
-            public void onAnimationCancel(Animator animation) {
-                canceled = true;
-            }
-
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                if (canceled) return;
-                // Run any queued runnables
-                if (onCompleteRunnable != null) {
-                    onCompleteRunnable.run();
-                }
-
-                cleanupAnimation();
-                mLauncher.getUserEventDispatcher().resetElapsedContainerMillis();
-            }
-
-        });
-
-        mConfig.reset();
-        mAllAppsController.animateToWorkspace(animation, mConfig);
-        mLauncher.getWorkspace().setStateWithAnimation(toWorkspaceState, layerViews, animation,
-                mConfig);
-
-        Runnable startAnimRunnable = new StartAnimRunnable(animation, mLauncher.getWorkspace());
-        mCurrentAnimation = animation;
-        mCurrentAnimation.addListener(layerViews);
-        if (mConfig.shouldPost) {
-            fromView.post(startAnimRunnable);
-        } else {
-            startAnimRunnable.run();
-        }
-    }
-
-    /**
-     * Starts an animation to the workspace from another workspace state, e.g. normal to overview.
-     */
-    private void startAnimationToNewWorkspaceState(final LauncherState fromWorkspaceState,
-            final LauncherState toWorkspaceState, final boolean animated,
-            final Runnable onCompleteRunnable) {
-        final View fromWorkspace = mLauncher.getWorkspace();
-        // Cancel the current animation
-        cancelAnimation();
-
-        mLauncher.getUserEventDispatcher().resetElapsedContainerMillis();
-
-        if (!animated) {
-            mLauncher.getWorkspace().setState(toWorkspaceState);
-            // Run any queued runnables
-            if (onCompleteRunnable != null) {
-                onCompleteRunnable.run();
-            }
-            return;
-        }
-
-        final AnimationLayerSet layerViews = new AnimationLayerSet();
-        final AnimatorSet animation = LauncherAnimUtils.createAnimatorSet();
-        mConfig.reset();
-        mLauncher.getWorkspace().setStateWithAnimation(toWorkspaceState,
-                layerViews, animation, mConfig);
-
-        animation.addListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                // Run any queued runnables
-                if (onCompleteRunnable != null) {
-                    onCompleteRunnable.run();
-                }
-
-                // This can hold unnecessary references to views.
-                cleanupAnimation();
-            }
-        });
-        animation.addListener(layerViews);
-        fromWorkspace.post(new StartAnimRunnable(animation, null));
-        mCurrentAnimation = animation;
-    }
-
-    /**
-     * Cancels the current animation.
-     */
-    private void cancelAnimation() {
-        if (mCurrentAnimation != null) {
-            mCurrentAnimation.setDuration(0);
-            mCurrentAnimation.cancel();
-            mCurrentAnimation = null;
-        }
-    }
-
-    @Thunk void cleanupAnimation() {
-        mCurrentAnimation = null;
-    }
-
-    private class StartAnimRunnable implements Runnable {
-
-        private final AnimatorSet mAnim;
-        private final View mViewToFocus;
-
-        public StartAnimRunnable(AnimatorSet anim, View viewToFocus) {
-            mAnim = anim;
-            mViewToFocus = viewToFocus;
-        }
-
-        @Override
-        public void run() {
-            if (mCurrentAnimation != mAnim) {
-                return;
-            }
-            if (mViewToFocus != null) {
-                mViewToFocus.requestFocus();
-            }
-            mAnim.start();
-        }
-    }
-
-    public static class AnimationConfig {
-        public boolean shouldPost;
-
-        private long mOverriddenDuration = -1;
-
-        public void reset() {
-            shouldPost = false;
-            mOverriddenDuration = -1;
-        }
-
-        public void overrideDuration(long duration) {
-            mOverriddenDuration = duration;
-        }
-
-        public long getDuration(long defaultDuration) {
-            return mOverriddenDuration >= 0 ? mOverriddenDuration : defaultDuration;
-        }
-    }
-}
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index 87f3dda..6c22474 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -46,10 +46,10 @@
 import android.view.accessibility.AccessibilityNodeInfo;
 import android.view.animation.Interpolator;
 
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.anim.PropertyListBuilder;
 import com.android.launcher3.pageindicators.PageIndicator;
 import com.android.launcher3.touch.OverScroll;
-import com.android.launcher3.util.Themes;
 import com.android.launcher3.util.Thunk;
 
 import java.util.ArrayList;
@@ -87,15 +87,12 @@
     public static final int INVALID_RESTORE_PAGE = -1001;
 
     private boolean mFreeScroll = false;
-    private int mFreeScrollMinScrollX = -1;
-    private int mFreeScrollMaxScrollX = -1;
 
     protected int mFlingThresholdVelocity;
     protected int mMinFlingVelocity;
     protected int mMinSnapVelocity;
 
     protected boolean mFirstLayout = true;
-    private int mNormalChildHeight;
 
     @ViewDebug.ExportedProperty(category = "launcher")
     protected int mCurrentPage;
@@ -137,7 +134,6 @@
     protected int mTouchSlop;
     private int mMaximumVelocity;
     protected boolean mAllowOverScroll = true;
-    protected int[] mTempVisiblePagesRange = new int[2];
 
     protected static final int INVALID_POINTER = -1;
 
@@ -169,8 +165,6 @@
     @Thunk static int REORDERING_REORDER_REPOSITION_DURATION = 300;
     private static int REORDERING_SIDE_PAGE_HOVER_TIMEOUT = 80;
 
-    private float mMinScale = 1f;
-    private boolean mUseMinScale = false;
     @Thunk View mDragView;
     private Runnable mSidePageHoverRunnable;
     @Thunk int mSidePageHoverIndex = -1;
@@ -218,7 +212,7 @@
      */
     protected void init() {
         mScroller = new LauncherScroller(getContext());
-        setDefaultInterpolator(new ScrollInterpolator());
+        setDefaultInterpolator(Interpolators.SCROLL);
         mCurrentPage = 0;
 
         final ViewConfiguration configuration = ViewConfiguration.get(getContext());
@@ -276,12 +270,6 @@
         }
     }
 
-    public void setMinScale(float f) {
-        mMinScale = f;
-        mUseMinScale = true;
-        requestLayout();
-    }
-
     @Override
     public void setScaleX(float scaleX) {
         super.setScaleX(scaleX);
@@ -380,16 +368,8 @@
     }
 
     private int validateNewPage(int newPage) {
-        int validatedPage = newPage;
-        // When in free scroll mode, we need to clamp to the free scroll page range.
-        if (mFreeScroll) {
-            getFreeScrollPageRange(mTempVisiblePagesRange);
-            validatedPage = Math.max(mTempVisiblePagesRange[0],
-                    Math.min(newPage, mTempVisiblePagesRange[1]));
-        }
         // Ensure that it is clamped by the actual set of children in all cases
-        validatedPage = Utilities.boundToRange(validatedPage, 0, getPageCount() - 1);
-        return validatedPage;
+        return Utilities.boundToRange(newPage, 0, getPageCount() - 1);
     }
 
     /**
@@ -491,13 +471,11 @@
         if (mFreeScroll) {
             // If the scroller is trying to move to a location beyond the maximum allowed
             // in the free scroll mode, we make sure to end the scroll operation.
-            if (!mScroller.isFinished() &&
-                    (x > mFreeScrollMaxScrollX || x < mFreeScrollMinScrollX)) {
+            if (!mScroller.isFinished() && (x > mMaxScrollX || x < 0)) {
                 forceFinishScroller(false);
             }
 
-            x = Math.min(x, mFreeScrollMaxScrollX);
-            x = Math.max(x, mFreeScrollMinScrollX);
+            x = Utilities.boundToRange(x, 0, mMaxScrollX);
         }
 
         mUnboundedScrollX = x;
@@ -610,56 +588,9 @@
         computeScrollHelper();
     }
 
-    public static class LayoutParams extends ViewGroup.LayoutParams {
-        public boolean isFullScreenPage = false;
-
-        // If true, the start edge of the page snaps to the start edge of the viewport.
-        public boolean matchStartEdge = false;
-
-        /**
-         * {@inheritDoc}
-         */
-        public LayoutParams(int width, int height) {
-            super(width, height);
-        }
-
-        public LayoutParams(Context context, AttributeSet attrs) {
-            super(context, attrs);
-        }
-
-        public LayoutParams(ViewGroup.LayoutParams source) {
-            super(source);
-        }
-    }
-
-    @Override
-    public LayoutParams generateLayoutParams(AttributeSet attrs) {
-        return new LayoutParams(getContext(), attrs);
-    }
-
-    @Override
-    protected LayoutParams generateDefaultLayoutParams() {
-        return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
-    }
-
-    @Override
-    protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) {
-        return new LayoutParams(p);
-    }
-
-    @Override
-    protected boolean checkLayoutParams(ViewGroup.LayoutParams p) {
-        return p instanceof LayoutParams;
-    }
-
-    public void addFullScreenPage(View page) {
-        LayoutParams lp = generateDefaultLayoutParams();
-        lp.isFullScreenPage = true;
-        super.addView(page, 0, lp);
-    }
-
     public int getNormalChildHeight() {
-        return mNormalChildHeight;
+        return  getViewportHeight() - getPaddingTop() - getPaddingBottom()
+                - mInsets.top - mInsets.bottom;
     }
 
     @Override
@@ -675,22 +606,7 @@
         int widthSize = MeasureSpec.getSize(widthMeasureSpec);
         int heightMode = MeasureSpec.getMode(heightMeasureSpec);
         int heightSize = MeasureSpec.getSize(heightMeasureSpec);
-        // NOTE: We multiply by 2f to account for the fact that depending on the offset of the
-        // viewport, we can be at most one and a half screens offset once we scale down
-        DisplayMetrics dm = getResources().getDisplayMetrics();
-        int maxSize = Math.max(dm.widthPixels + mInsets.left + mInsets.right,
-                dm.heightPixels + mInsets.top + mInsets.bottom);
 
-        int parentWidthSize = (int) (2f * maxSize);
-        int parentHeightSize = (int) (2f * maxSize);
-        int scaledWidthSize, scaledHeightSize;
-        if (mUseMinScale) {
-            scaledWidthSize = (int) (parentWidthSize / mMinScale);
-            scaledHeightSize = (int) (parentHeightSize / mMinScale);
-        } else {
-            scaledWidthSize = widthSize;
-            scaledHeightSize = heightSize;
-        }
         mViewport.set(0, 0, widthSize, heightSize);
 
         if (widthMode == MeasureSpec.UNSPECIFIED || heightMode == MeasureSpec.UNSPECIFIED) {
@@ -704,71 +620,19 @@
             return;
         }
 
-        /* Allow the height to be set as WRAP_CONTENT. This allows the particular case
-         * of the All apps view on XLarge displays to not take up more space then it needs. Width
-         * is still not allowed to be set as WRAP_CONTENT since many parts of the code expect
-         * each page to have the same width.
-         */
-        final int verticalPadding = getPaddingTop() + getPaddingBottom();
-        final int horizontalPadding = getPaddingLeft() + getPaddingRight();
-
-        int referenceChildWidth = 0;
         // The children are given the same width and height as the workspace
         // unless they were set to WRAP_CONTENT
         if (DEBUG) Log.d(TAG, "PagedView.onMeasure(): " + widthSize + ", " + heightSize);
-        if (DEBUG) Log.d(TAG, "PagedView.scaledSize: " + scaledWidthSize + ", " + scaledHeightSize);
-        if (DEBUG) Log.d(TAG, "PagedView.parentSize: " + parentWidthSize + ", " + parentHeightSize);
-        if (DEBUG) Log.d(TAG, "PagedView.horizontalPadding: " + horizontalPadding);
-        if (DEBUG) Log.d(TAG, "PagedView.verticalPadding: " + verticalPadding);
-        final int childCount = getChildCount();
-        for (int i = 0; i < childCount; i++) {
-            // disallowing padding in paged view (just pass 0)
-            final View child = getPageAt(i);
-            if (child.getVisibility() != GONE) {
-                final LayoutParams lp = (LayoutParams) child.getLayoutParams();
 
-                int childWidthMode;
-                int childHeightMode;
-                int childWidth;
-                int childHeight;
+        int myWidthSpec = MeasureSpec.makeMeasureSpec(
+                getViewportWidth() - mInsets.left - mInsets.right, MeasureSpec.EXACTLY);
+        int myHeightSpec = MeasureSpec.makeMeasureSpec(
+                getViewportHeight() - mInsets.top - mInsets.bottom, MeasureSpec.EXACTLY);
 
-                if (!lp.isFullScreenPage) {
-                    if (lp.width == LayoutParams.WRAP_CONTENT) {
-                        childWidthMode = MeasureSpec.AT_MOST;
-                    } else {
-                        childWidthMode = MeasureSpec.EXACTLY;
-                    }
-
-                    if (lp.height == LayoutParams.WRAP_CONTENT) {
-                        childHeightMode = MeasureSpec.AT_MOST;
-                    } else {
-                        childHeightMode = MeasureSpec.EXACTLY;
-                    }
-
-                    childWidth = getViewportWidth() - horizontalPadding
-                            - mInsets.left - mInsets.right;
-                    childHeight = getViewportHeight() - verticalPadding
-                            - mInsets.top - mInsets.bottom;
-                    mNormalChildHeight = childHeight;
-                } else {
-                    childWidthMode = MeasureSpec.EXACTLY;
-                    childHeightMode = MeasureSpec.EXACTLY;
-
-                    childWidth = getViewportWidth();
-                    childHeight = getViewportHeight();
-                }
-                if (referenceChildWidth == 0) {
-                    referenceChildWidth = childWidth;
-                }
-
-                final int childWidthMeasureSpec =
-                        MeasureSpec.makeMeasureSpec(childWidth, childWidthMode);
-                    final int childHeightMeasureSpec =
-                        MeasureSpec.makeMeasureSpec(childHeight, childHeightMode);
-                child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
-            }
-        }
-        setMeasuredDimension(scaledWidthSize, scaledHeightSize);
+        // measureChildren takes accounts for content padding, we only need to care about extra
+        // space due to insets.
+        measureChildren(myWidthSpec, myHeightSpec);
+        setMeasuredDimension(widthSize, heightSize);
     }
 
     @SuppressLint("DrawAllocation")
@@ -793,10 +657,7 @@
 
         int verticalPadding = getPaddingTop() + getPaddingBottom();
 
-        LayoutParams lp = (LayoutParams) getChildAt(startIndex).getLayoutParams();
-        LayoutParams nextLp;
-
-        int childLeft = offsetX + (lp.isFullScreenPage ? 0 : getPaddingLeft());
+        int childLeft = offsetX + getPaddingLeft();
         if (mPageScrolls == null || childCount != mChildCountOnLastLayout) {
             mPageScrolls = new int[childCount];
         }
@@ -804,14 +665,9 @@
         for (int i = startIndex; i != endIndex; i += delta) {
             final View child = getPageAt(i);
             if (child.getVisibility() != View.GONE) {
-                lp = (LayoutParams) child.getLayoutParams();
-                int childTop;
-                if (lp.isFullScreenPage) {
-                    childTop = offsetY;
-                } else {
-                    childTop = offsetY + getPaddingTop() + mInsets.top;
-                    childTop += (getViewportHeight() - mInsets.top - mInsets.bottom - verticalPadding - child.getMeasuredHeight()) / 2;
-                }
+                int childTop = offsetY + getPaddingTop() + mInsets.top;
+                childTop += (getViewportHeight() - mInsets.top - mInsets.bottom - verticalPadding
+                        - child.getMeasuredHeight()) / 2;
 
                 final int childWidth = child.getMeasuredWidth();
                 final int childHeight = child.getMeasuredHeight();
@@ -820,26 +676,10 @@
                 child.layout(childLeft, childTop,
                         childLeft + child.getMeasuredWidth(), childTop + childHeight);
 
-                int scrollOffsetLeft = lp.isFullScreenPage ? 0 : getPaddingLeft();
+                int scrollOffsetLeft = getPaddingLeft();
                 mPageScrolls[i] = childLeft - scrollOffsetLeft - offsetX;
 
-                int pageGap = mPageSpacing;
-                int next = i + delta;
-                if (next != endIndex) {
-                    nextLp = (LayoutParams) getPageAt(next).getLayoutParams();
-                } else {
-                    nextLp = null;
-                }
-
-                // Prevent full screen pages from showing in the viewport
-                // when they are not the current page.
-                if (lp.isFullScreenPage) {
-                    pageGap = getPaddingLeft();
-                } else if (nextLp != null && nextLp.isFullScreenPage) {
-                    pageGap = getPaddingRight();
-                }
-
-                childLeft += childWidth + pageGap + getChildGap();
+                childLeft += childWidth + mPageSpacing + getChildGap();
             }
         }
 
@@ -886,7 +726,7 @@
         return 0;
     }
 
-    @Thunk void updateMaxScrollX() {
+    private void updateMaxScrollX() {
         mMaxScrollX = computeMaxScrollX();
     }
 
@@ -915,13 +755,11 @@
 
         // This ensures that when children are added, they get the correct transforms / alphas
         // in accordance with any scroll effects.
-        updateFreescrollBounds();
         invalidate();
     }
 
     @Override
     public void onChildViewRemoved(View parent, View child) {
-        updateFreescrollBounds();
         mCurrentPage = validateNewPage(mCurrentPage);
         invalidate();
     }
@@ -974,11 +812,6 @@
         return offset;
     }
 
-    protected void getFreeScrollPageRange(int[] range) {
-        range[0] = 0;
-        range[1] = Math.max(0, getChildCount() - 1);
-    }
-
     @Override
     public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) {
         int page = indexToPage(indexOfChild(child));
@@ -1309,12 +1142,7 @@
         } else {
             View child = getChildAt(index);
 
-            int scrollOffset = 0;
-            LayoutParams lp = (LayoutParams) child.getLayoutParams();
-            if (!lp.isFullScreenPage) {
-                scrollOffset = mIsRtl ? getPaddingRight() : getPaddingLeft();
-            }
-
+            int scrollOffset = scrollOffset = mIsRtl ? getPaddingRight() : getPaddingLeft();
             int baselineX = mPageScrolls[index] + scrollOffset + getViewportOffsetX();
             return (int) (child.getX() - baselineX);
         }
@@ -1341,38 +1169,20 @@
     /**
      * return true if freescroll has been enabled, false otherwise
      */
-    public boolean enableFreeScroll() {
+    protected void enableFreeScroll() {
         setEnableFreeScroll(true);
-        return true;
     }
 
-    public void disableFreeScroll() {
+    protected void disableFreeScroll() {
         setEnableFreeScroll(false);
     }
 
-    void updateFreescrollBounds() {
-        getFreeScrollPageRange(mTempVisiblePagesRange);
-        if (mIsRtl) {
-            mFreeScrollMinScrollX = getScrollForPage(mTempVisiblePagesRange[1]);
-            mFreeScrollMaxScrollX = getScrollForPage(mTempVisiblePagesRange[0]);
-        } else {
-            mFreeScrollMinScrollX = getScrollForPage(mTempVisiblePagesRange[0]);
-            mFreeScrollMaxScrollX = getScrollForPage(mTempVisiblePagesRange[1]);
-        }
-    }
-
     private void setEnableFreeScroll(boolean freeScroll) {
         boolean wasFreeScroll = mFreeScroll;
         mFreeScroll = freeScroll;
 
         if (mFreeScroll) {
-            updateFreescrollBounds();
-            getFreeScrollPageRange(mTempVisiblePagesRange);
-            if (getCurrentPage() < mTempVisiblePagesRange[0]) {
-                setCurrentPage(mTempVisiblePagesRange[0]);
-            } else if (getCurrentPage() > mTempVisiblePagesRange[1]) {
-                setCurrentPage(mTempVisiblePagesRange[1]);
-            }
+            setCurrentPage(getNextPage());
         } else if (wasFreeScroll) {
             snapToPage(getNextPage());
         }
@@ -1388,12 +1198,12 @@
         if (mDragView != null) {
             int dragX = (int) (mDragView.getLeft() + (mDragView.getMeasuredWidth() / 2)
                     + mDragView.getTranslationX());
-            getFreeScrollPageRange(mTempVisiblePagesRange);
             int minDistance = Integer.MAX_VALUE;
             int minIndex = indexOfChild(mDragView);
-            for (int i = mTempVisiblePagesRange[0]; i <= mTempVisiblePagesRange[1]; i++) {
+            int maxPageNo = getChildCount() - 1;
+            for (int i = 0; i <= maxPageNo; i++) {
                 View page = getPageAt(i);
-                int pageX = (int) (page.getLeft() + page.getMeasuredWidth() / 2);
+                int pageX = (page.getLeft() + page.getMeasuredWidth() / 2);
                 int d = Math.abs(dragX - pageX);
                 if (d < minDistance) {
                     minIndex = i;
@@ -1488,11 +1298,7 @@
                 final int pageUnderPointIndex = getNearestHoverOverPageIndex();
                 // Do not allow any page to be moved to 0th position.
                 if (pageUnderPointIndex > 0 && pageUnderPointIndex != indexOfChild(mDragView)) {
-                    mTempVisiblePagesRange[0] = 0;
-                    mTempVisiblePagesRange[1] = getPageCount() - 1;
-                    getFreeScrollPageRange(mTempVisiblePagesRange);
-                    if (mTempVisiblePagesRange[0] <= pageUnderPointIndex &&
-                            pageUnderPointIndex <= mTempVisiblePagesRange[1] &&
+                    if (0 <= pageUnderPointIndex && pageUnderPointIndex <= getPageCount() - 1 &&
                             pageUnderPointIndex != mSidePageHoverIndex && mScroller.isFinished()) {
                         mSidePageHoverIndex = pageUnderPointIndex;
                         mSidePageHoverRunnable = new Runnable() {
@@ -1809,16 +1615,6 @@
         return PAGE_SNAP_ANIMATION_DURATION;
     }
 
-    public static class ScrollInterpolator implements Interpolator {
-        public ScrollInterpolator() {
-        }
-
-        public float getInterpolation(float t) {
-            t -= 1.0f;
-            return t*t*t*t*t + 1;
-        }
-    }
-
     // We want the duration of the page snap animation to be influenced by the distance that
     // the screen has to travel, however, we don't want this duration to be effected in a
     // purely linear fashion. Instead, we use this method to moderate the effect that the distance
@@ -2026,18 +1822,14 @@
         // Do not allow the first page to be moved around
         if (mTouchState != TOUCH_STATE_REST || dragViewIndex <= 0) return false;
 
-        mTempVisiblePagesRange[0] = 0;
-        mTempVisiblePagesRange[1] = getPageCount() - 1;
-        getFreeScrollPageRange(mTempVisiblePagesRange);
-        mReorderingStarted = true;
-
         // Check if we are within the reordering range
-        if (mTempVisiblePagesRange[0] <= dragViewIndex &&
-            dragViewIndex <= mTempVisiblePagesRange[1]) {
+        if (0 <= dragViewIndex && dragViewIndex <= getPageCount() - 1) {
             // Find the drag view under the pointer
             mDragView = getChildAt(dragViewIndex);
             mDragView.animate().scaleX(1.15f).scaleY(1.15f).setDuration(100).start();
             mDragViewBaselineLeft = mDragView.getLeft();
+            mReorderingStarted = true;
+
             snapToPage(getPageNearestToCenterOfScreen());
             disableFreeScroll();
             onStartReordering();
diff --git a/src/com/android/launcher3/PinchAnimationManager.java b/src/com/android/launcher3/PinchAnimationManager.java
deleted file mode 100644
index bbe8e89..0000000
--- a/src/com/android/launcher3/PinchAnimationManager.java
+++ /dev/null
@@ -1,245 +0,0 @@
-/*
- * 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;
-
-import android.animation.Animator;
-import android.animation.AnimatorListenerAdapter;
-import android.animation.ObjectAnimator;
-import android.animation.ValueAnimator;
-import android.util.Log;
-import android.view.View;
-import android.view.animation.LinearInterpolator;
-
-import com.android.launcher3.anim.AnimationLayerSet;
-import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
-import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
-
-import static com.android.launcher3.LauncherState.NORMAL;
-import static com.android.launcher3.LauncherState.OVERVIEW;
-
-/**
- * Manages the animations that play as the user pinches to/from overview mode.
- *
- *  It will look like this pinching in:
- * - Workspace scales down
- * - At some threshold 1, hotseat and QSB fade out (full animation)
- * - At a later threshold 2, panel buttons fade in and scrim fades in
- * - At a final threshold 3, snap to overview
- *
- * Pinching out:
- * - Workspace scales up
- * - At threshold 1, panel buttons fade out
- * - At threshold 2, hotseat and QSB fade in and scrim fades out
- * - At threshold 3, snap to workspace
- *
- * @see PinchToOverviewListener
- * @see PinchThresholdManager
- */
-public class PinchAnimationManager {
-    private static final String TAG = "PinchAnimationManager";
-
-    private static final int THRESHOLD_ANIM_DURATION = 150;
-    private static final LinearInterpolator INTERPOLATOR = new LinearInterpolator();
-
-    private static final int INDEX_HOTSEAT = 0;
-    private static final int INDEX_OVERVIEW_PANEL_BUTTONS = 1;
-    private static final int INDEX_SCRIM = 2;
-
-    private final Animator[] mAnimators = new Animator[3];
-
-    private Launcher mLauncher;
-    private Workspace mWorkspace;
-
-    private float mOverviewScale;
-    private float mOverviewTranslationY;
-    private int mNormalOverviewTransitionDuration;
-    private boolean mIsAnimating;
-
-    public PinchAnimationManager(Launcher launcher) {
-        mLauncher = launcher;
-        mWorkspace = launcher.mWorkspace;
-
-        mOverviewScale = mWorkspace.getOverviewModeShrinkFactor();
-        mOverviewTranslationY = mWorkspace.getOverviewModeTranslationY();
-        mNormalOverviewTransitionDuration = LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
-    }
-
-    public int getNormalOverviewTransitionDuration() {
-        return mNormalOverviewTransitionDuration;
-    }
-
-    /**
-     * Interpolate from {@param currentProgress} to {@param toProgress}, calling
-     * {@link #setAnimationProgress(float)} throughout the duration. If duration is -1,
-     * the default overview transition duration is used.
-     */
-    public void animateToProgress(float currentProgress, float toProgress, int duration,
-            final PinchThresholdManager thresholdManager) {
-        if (duration == -1) {
-            duration = mNormalOverviewTransitionDuration;
-        }
-        ValueAnimator animator = ValueAnimator.ofFloat(currentProgress, toProgress);
-        animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
-                @Override
-                public void onAnimationUpdate(ValueAnimator animation) {
-                    float pinchProgress = (Float) animation.getAnimatedValue();
-                    setAnimationProgress(pinchProgress);
-                    thresholdManager.updateAndAnimatePassedThreshold(pinchProgress,
-                            PinchAnimationManager.this);
-                }
-            }
-        );
-        animator.addListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                mIsAnimating = false;
-                thresholdManager.reset();
-                mWorkspace.onEndStateTransition();
-            }
-        });
-        animator.setDuration(duration).start();
-        mIsAnimating = true;
-    }
-
-    public boolean isAnimating() {
-        return mIsAnimating;
-    }
-
-    /**
-     * Animates to the specified progress. This should be called repeatedly throughout the pinch
-     * gesture to run animations that interpolate throughout the gesture.
-     * @param interpolatedProgress The progress from 0 to 1, where 0 is overview and 1 is workspace.
-     */
-    public void setAnimationProgress(float interpolatedProgress) {
-        float interpolatedScale = interpolatedProgress * (1f - mOverviewScale) + mOverviewScale;
-        float interpolatedTranslationY = (1f - interpolatedProgress) * mOverviewTranslationY;
-        mWorkspace.setScaleX(interpolatedScale);
-        mWorkspace.setScaleY(interpolatedScale);
-        mWorkspace.setTranslationY(interpolatedTranslationY);
-        int alpha = (int) ((1f - interpolatedProgress) * 255);
-        setOverviewPanelsAlpha(alpha, 0);
-    }
-
-    /**
-     * Animates certain properties based on which threshold was passed, and in what direction. The
-     * starting state must also be taken into account because the thresholds mean different things
-     * when going from workspace to overview and vice versa.
-     * @param threshold One of {@link PinchThresholdManager#THRESHOLD_ONE},
-     *                  {@link PinchThresholdManager#THRESHOLD_TWO}, or
-     *                  {@link PinchThresholdManager#THRESHOLD_THREE}
-     * @param startState {@link LauncherState#NORMAL} or {@link LauncherState#OVERVIEW}.
-     * @param goingTowards {@link LauncherState#NORMAL} or {@link LauncherState#OVERVIEW}.
-     *                     Note that this doesn't have to be the opposite of startState;
-     */
-    public void animateThreshold(float threshold, LauncherState startState,
-            LauncherState goingTowards) {
-        if (threshold == PinchThresholdManager.THRESHOLD_ONE) {
-            if (startState == OVERVIEW) {
-                animateOverviewPanelButtons(goingTowards == OVERVIEW);
-            } else if (startState == NORMAL) {
-                animateHotseatAndQsb(goingTowards == NORMAL);
-            }
-        } else if (threshold == PinchThresholdManager.THRESHOLD_TWO) {
-            if (startState == OVERVIEW) {
-                animateHotseatAndQsb(goingTowards == NORMAL);
-                animateScrim(goingTowards == OVERVIEW);
-            } else if (startState == NORMAL) {
-                animateOverviewPanelButtons(goingTowards == OVERVIEW);
-                animateScrim(goingTowards == OVERVIEW);
-            }
-        } else if (threshold == PinchThresholdManager.THRESHOLD_THREE) {
-            // Passing threshold 3 ends the pinch and snaps to the new state.
-            if (startState == OVERVIEW && goingTowards == NORMAL) {
-                mLauncher.getUserEventDispatcher().logActionOnContainer(
-                        Action.Touch.PINCH, Action.Direction.NONE,
-                        ContainerType.OVERVIEW, mWorkspace.getCurrentPage());
-                mLauncher.showWorkspace(true);
-                mWorkspace.snapToPage(mWorkspace.getCurrentPage());
-            } else if (startState == NORMAL && goingTowards == OVERVIEW) {
-                mLauncher.getUserEventDispatcher().logActionOnContainer(
-                        Action.Touch.PINCH, Action.Direction.NONE,
-                        ContainerType.WORKSPACE, mWorkspace.getCurrentPage());
-                mLauncher.showOverviewMode(true);
-            }
-        } else {
-            Log.e(TAG, "Received unknown threshold to animate: " + threshold);
-        }
-    }
-
-    private void setOverviewPanelsAlpha(int alpha, int duration) {
-        int childCount = mWorkspace.getChildCount();
-        for (int i = 0; i < childCount; i++) {
-            final CellLayout cl = (CellLayout) mWorkspace.getChildAt(i);
-            if (duration == 0) {
-                cl.getScrimBackground().setAlpha(alpha);
-            } else {
-                ObjectAnimator.ofInt(cl.getScrimBackground(),
-                        LauncherAnimUtils.DRAWABLE_ALPHA, alpha).setDuration(duration).start();
-            }
-        }
-    }
-
-    private void animateHotseatAndQsb(boolean show) {
-        startAnimator(INDEX_HOTSEAT,
-                mWorkspace.createHotseatAlphaAnimator(show ? 1 : 0), THRESHOLD_ANIM_DURATION);
-    }
-
-    private void animateOverviewPanelButtons(boolean show) {
-        animateShowHideView(INDEX_OVERVIEW_PANEL_BUTTONS, mLauncher.getOverviewPanel(), show);
-    }
-
-    private void animateScrim(boolean show) {
-        int endValue = show ? mWorkspace.getStateTransitionAnimation().mWorkspaceScrimAlpha : 0;
-        startAnimator(INDEX_SCRIM, ObjectAnimator.ofInt(
-                mLauncher.getDragLayer().getScrim(), LauncherAnimUtils.DRAWABLE_ALPHA, endValue),
-                mNormalOverviewTransitionDuration);
-    }
-
-    private void animateShowHideView(int index, final View view, boolean show) {
-        Animator animator = ObjectAnimator.ofFloat(view, View.ALPHA, show ? 1 : 0);
-        animator.addListener(new AnimationLayerSet(view));
-        if (show) {
-            view.setVisibility(View.VISIBLE);
-        } else {
-            animator.addListener(new AnimatorListenerAdapter() {
-                private boolean mCancelled = false;
-
-                @Override
-                public void onAnimationCancel(Animator animation) {
-                    mCancelled = true;
-                }
-
-                @Override
-                public void onAnimationEnd(Animator animation) {
-                    if (!mCancelled) {
-                        view.setVisibility(View.INVISIBLE);
-                    }
-                }
-            });
-        }
-        startAnimator(index, animator, THRESHOLD_ANIM_DURATION);
-    }
-
-    private void startAnimator(int index, Animator animator, long duration) {
-        if (mAnimators[index] != null) {
-            mAnimators[index].cancel();
-        }
-        mAnimators[index] = animator;
-        mAnimators[index].setInterpolator(INTERPOLATOR);
-        mAnimators[index].setDuration(duration).start();
-    }
-}
diff --git a/src/com/android/launcher3/PinchThresholdManager.java b/src/com/android/launcher3/PinchThresholdManager.java
deleted file mode 100644
index 8cbc33d..0000000
--- a/src/com/android/launcher3/PinchThresholdManager.java
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * 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;
-
-/**
- * Keeps track of when thresholds are passed during a pinch gesture,
- * used to inform {@link PinchAnimationManager} throughout.
- *
- * @see PinchToOverviewListener
- * @see PinchAnimationManager
- */
-public class PinchThresholdManager {
-    public static final float THRESHOLD_ZERO = 0.0f;
-    public static final float THRESHOLD_ONE = 0.40f;
-    public static final float THRESHOLD_TWO = 0.70f;
-    public static final float THRESHOLD_THREE = 0.95f;
-
-    private Workspace mWorkspace;
-
-    private float mPassedThreshold = THRESHOLD_ZERO;
-
-    public PinchThresholdManager(Workspace workspace) {
-        mWorkspace = workspace;
-    }
-
-    /**
-     * Uses the pinch progress to determine whether a threshold has been passed,
-     * and asks the {@param animationManager} to animate if so.
-     * @param progress From 0 to 1, where 0 is overview and 1 is workspace.
-     * @param animationManager Animates the threshold change if one is passed.
-     * @return The last passed threshold, one of
-     *         {@link PinchThresholdManager#THRESHOLD_ZERO},
-     *         {@link PinchThresholdManager#THRESHOLD_ONE},
-     *         {@link PinchThresholdManager#THRESHOLD_TWO}, or
-     *         {@link PinchThresholdManager#THRESHOLD_THREE}
-     */
-    public float updateAndAnimatePassedThreshold(float progress,
-            PinchAnimationManager animationManager) {
-        if (!mWorkspace.isInOverviewMode()) {
-            // Invert the progress, because going from workspace to overview is 1 to 0.
-            progress = 1f - progress;
-        }
-
-        float previousPassedThreshold = mPassedThreshold;
-
-        if (progress < THRESHOLD_ONE) {
-            mPassedThreshold = THRESHOLD_ZERO;
-        } else if (progress < THRESHOLD_TWO) {
-            mPassedThreshold = THRESHOLD_ONE;
-        } else if (progress < THRESHOLD_THREE) {
-            mPassedThreshold = THRESHOLD_TWO;
-        } else {
-            mPassedThreshold = THRESHOLD_THREE;
-        }
-
-        if (mPassedThreshold != previousPassedThreshold) {
-            LauncherState fromState = mWorkspace.isInOverviewMode() ? LauncherState.OVERVIEW
-                    : LauncherState.NORMAL;
-            LauncherState toState = mWorkspace.isInOverviewMode() ? LauncherState.NORMAL
-                    : LauncherState.OVERVIEW;
-            float thresholdToAnimate = mPassedThreshold;
-            if (mPassedThreshold < previousPassedThreshold) {
-                // User reversed pinch, so heading back to the state that they started from.
-                toState = fromState;
-                thresholdToAnimate = previousPassedThreshold;
-            }
-            animationManager.animateThreshold(thresholdToAnimate, fromState, toState);
-        }
-        return mPassedThreshold;
-    }
-
-    public float getPassedThreshold() {
-        return mPassedThreshold;
-    }
-
-    public void reset() {
-        mPassedThreshold = THRESHOLD_ZERO;
-    }
-}
diff --git a/src/com/android/launcher3/PinchToOverviewListener.java b/src/com/android/launcher3/PinchToOverviewListener.java
deleted file mode 100644
index 2a5899c..0000000
--- a/src/com/android/launcher3/PinchToOverviewListener.java
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- * 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;
-
-import android.animation.TimeInterpolator;
-import android.content.Context;
-import android.view.MotionEvent;
-import android.view.ScaleGestureDetector;
-
-import com.android.launcher3.util.TouchController;
-
-/**
- * Detects pinches and animates the Workspace to/from overview mode.
- *
- * Usage: Pass MotionEvents to onInterceptTouchEvent() and onTouchEvent(). This class will handle
- * the pinch detection, and use {@link PinchAnimationManager} to handle the animations.
- *
- * @see PinchThresholdManager
- * @see PinchAnimationManager
- */
-public class PinchToOverviewListener extends ScaleGestureDetector.SimpleOnScaleGestureListener
-        implements TouchController {
-    private static final float OVERVIEW_PROGRESS = 0f;
-    private static final float WORKSPACE_PROGRESS = 1f;
-    /**
-     * The velocity threshold at which a pinch will be completed instead of canceled,
-     * even if the first threshold has not been passed. Measured in progress / millisecond
-     */
-    private static final float FLING_VELOCITY = 0.003f;
-
-    private ScaleGestureDetector mPinchDetector;
-    private Launcher mLauncher;
-    private Workspace mWorkspace = null;
-    private boolean mPinchStarted = false;
-    private float mPreviousProgress;
-    private float mProgressDelta;
-    private long mPreviousTimeMillis;
-    private long mTimeDelta;
-    private boolean mPinchCanceled = false;
-    private TimeInterpolator mInterpolator;
-
-    private PinchThresholdManager mThresholdManager;
-    private PinchAnimationManager mAnimationManager;
-
-    public PinchToOverviewListener(Launcher launcher) {
-        mLauncher = launcher;
-        mPinchDetector = new ScaleGestureDetector((Context) mLauncher, this);
-    }
-
-    public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
-        mPinchDetector.onTouchEvent(ev);
-        return mPinchStarted;
-    }
-
-    public boolean onControllerTouchEvent(MotionEvent ev) {
-        if (mPinchStarted) {
-            if (ev.getPointerCount() > 2) {
-                // Using more than two fingers causes weird behavior, so just cancel the pinch.
-                cancelPinch(mPreviousProgress, -1);
-            } else {
-                return mPinchDetector.onTouchEvent(ev);
-            }
-        }
-        return false;
-    }
-
-    @Override
-    public boolean onScaleBegin(ScaleGestureDetector detector) {
-        if (mLauncher.mState != Launcher.State.WORKSPACE) {
-            // Don't listen for the pinch gesture if on all apps, widget picker, -1, etc.
-            return false;
-        }
-        if (mAnimationManager != null && mAnimationManager.isAnimating()) {
-            // Don't listen for the pinch gesture if we are already animating from a previous one.
-            return false;
-        }
-        if (mLauncher.isWorkspaceLocked()) {
-            // Don't listen for the pinch gesture if the workspace isn't ready.
-            return false;
-        }
-        if (mWorkspace == null) {
-            mWorkspace = mLauncher.getWorkspace();
-            mThresholdManager = new PinchThresholdManager(mWorkspace);
-            mAnimationManager = new PinchAnimationManager(mLauncher);
-        }
-        if (mWorkspace.isSwitchingState() || mWorkspace.mScrollInteractionBegan) {
-            // Don't listen for the pinch gesture while switching state, as it will cause a jump
-            // once the state switching animation is complete.
-            return false;
-        }
-        if (AbstractFloatingView.getTopOpenView(mLauncher) != null) {
-            // Don't listen for the pinch gesture if a floating view is open.
-            return false;
-        }
-
-        mPreviousProgress = mWorkspace.isInOverviewMode() ? OVERVIEW_PROGRESS : WORKSPACE_PROGRESS;
-        mPreviousTimeMillis = System.currentTimeMillis();
-        mInterpolator = mWorkspace.isInOverviewMode() ? new LogDecelerateInterpolator(100, 0)
-                : new LogAccelerateInterpolator(100, 0);
-        mPinchStarted = true;
-        mWorkspace.onPrepareStateTransition(true);
-        return true;
-    }
-
-    @Override
-    public void onScaleEnd(ScaleGestureDetector detector) {
-        super.onScaleEnd(detector);
-
-        float progressVelocity = mProgressDelta / mTimeDelta;
-        float passedThreshold = mThresholdManager.getPassedThreshold();
-        boolean isFling = mWorkspace.isInOverviewMode() && progressVelocity >= FLING_VELOCITY
-                || !mWorkspace.isInOverviewMode() && progressVelocity <= -FLING_VELOCITY;
-        boolean shouldCancelPinch = !isFling && passedThreshold < PinchThresholdManager.THRESHOLD_ONE;
-        // If we are going towards overview, mPreviousProgress is how much further we need to
-        // go, since it is going from 1 to 0. If we are going to workspace, we want
-        // 1 - mPreviousProgress.
-        float remainingProgress = mPreviousProgress;
-        if (mWorkspace.isInOverviewMode() || shouldCancelPinch) {
-            remainingProgress = 1f - mPreviousProgress;
-        }
-        int duration = computeDuration(remainingProgress, progressVelocity);
-        if (shouldCancelPinch) {
-            cancelPinch(mPreviousProgress, duration);
-        } else if (passedThreshold < PinchThresholdManager.THRESHOLD_THREE) {
-            float toProgress = mWorkspace.isInOverviewMode() ?
-                    WORKSPACE_PROGRESS : OVERVIEW_PROGRESS;
-            mAnimationManager.animateToProgress(mPreviousProgress, toProgress, duration,
-                    mThresholdManager);
-        } else {
-            mThresholdManager.reset();
-            mWorkspace.onEndStateTransition();
-        }
-        mPinchStarted = false;
-        mPinchCanceled = false;
-    }
-
-    /**
-     * Compute the amount of time required to complete the transition based on the current pinch
-     * speed. If this time is too long, instead return the normal duration, ignoring the speed.
-     */
-    private int computeDuration(float remainingProgress, float progressVelocity) {
-        float progressSpeed = Math.abs(progressVelocity);
-        int remainingMillis = (int) (remainingProgress / progressSpeed);
-        return Math.min(remainingMillis, mAnimationManager.getNormalOverviewTransitionDuration());
-    }
-
-    /**
-     * Cancels the current pinch, returning back to where the pinch started (either workspace or
-     * overview). If duration is -1, the default overview transition duration is used.
-     */
-    private void cancelPinch(float currentProgress, int duration) {
-        if (mPinchCanceled) return;
-        mPinchCanceled = true;
-        float toProgress = mWorkspace.isInOverviewMode() ? OVERVIEW_PROGRESS : WORKSPACE_PROGRESS;
-        mAnimationManager.animateToProgress(currentProgress, toProgress, duration,
-                mThresholdManager);
-        mPinchStarted = false;
-    }
-
-    @Override
-    public boolean onScale(ScaleGestureDetector detector) {
-        if (mThresholdManager.getPassedThreshold() == PinchThresholdManager.THRESHOLD_THREE) {
-            // We completed the pinch, so stop listening to further movement until user lets go.
-            return true;
-        }
-        if (mLauncher.getDragController().isDragging()) {
-            mLauncher.getDragController().cancelDrag();
-        }
-
-        float pinchDist = detector.getCurrentSpan() - detector.getPreviousSpan();
-        if (pinchDist < 0 && mWorkspace.isInOverviewMode() ||
-                pinchDist > 0 && !mWorkspace.isInOverviewMode()) {
-            // Pinching the wrong way, so ignore.
-            return false;
-        }
-        // Pinch distance must equal the workspace width before switching states.
-        int pinchDistanceToCompleteTransition = mWorkspace.getWidth();
-        float overviewScale = mWorkspace.getOverviewModeShrinkFactor();
-        float initialWorkspaceScale = mWorkspace.isInOverviewMode() ? overviewScale : 1f;
-        float pinchScale = initialWorkspaceScale + pinchDist / pinchDistanceToCompleteTransition;
-        // Bound the scale between the overview scale and the normal workspace scale (1f).
-        pinchScale = Math.max(overviewScale, Math.min(pinchScale, 1f));
-        // Progress ranges from 0 to 1, where 0 corresponds to the overview scale and 1
-        // corresponds to the normal workspace scale (1f).
-        float progress = (pinchScale - overviewScale) / (1f - overviewScale);
-        float interpolatedProgress = mInterpolator.getInterpolation(progress);
-
-        mAnimationManager.setAnimationProgress(interpolatedProgress);
-        float passedThreshold = mThresholdManager.updateAndAnimatePassedThreshold(
-                interpolatedProgress, mAnimationManager);
-        if (passedThreshold == PinchThresholdManager.THRESHOLD_THREE) {
-            return true;
-        }
-
-        mProgressDelta = interpolatedProgress - mPreviousProgress;
-        mPreviousProgress = interpolatedProgress;
-        mTimeDelta = System.currentTimeMillis() - mPreviousTimeMillis;
-        mPreviousTimeMillis = System.currentTimeMillis();
-        return false;
-    }
-}
\ No newline at end of file
diff --git a/src/com/android/launcher3/ShortcutInfo.java b/src/com/android/launcher3/ShortcutInfo.java
index adf008b..ec608ca 100644
--- a/src/com/android/launcher3/ShortcutInfo.java
+++ b/src/com/android/launcher3/ShortcutInfo.java
@@ -65,13 +65,6 @@
     public static final int FLAG_SUPPORTS_WEB_UI = 16; //0B10000;
 
     /**
-     * Indicates if it represents a common type mentioned in {@link CommonAppTypeParser}.
-     * Upto 15 different types supported.
-     */
-    @Deprecated
-    public static final int FLAG_RESTORED_APP_TYPE = 0B0011110000;
-
-    /**
      * The intent used to start the application.
      */
     public Intent intent;
@@ -83,42 +76,6 @@
     public Intent.ShortcutIconResource iconResource;
 
     /**
-     * Indicates that the icon is disabled due to safe mode restrictions.
-     */
-    public static final int FLAG_DISABLED_SAFEMODE = 1 << 0;
-
-    /**
-     * Indicates that the icon is disabled as the app is not available.
-     */
-    public static final int FLAG_DISABLED_NOT_AVAILABLE = 1 << 1;
-
-    /**
-     * Indicates that the icon is disabled as the app is suspended
-     */
-    public static final int FLAG_DISABLED_SUSPENDED = 1 << 2;
-
-    /**
-     * Indicates that the icon is disabled as the user is in quiet mode.
-     */
-    public static final int FLAG_DISABLED_QUIET_USER = 1 << 3;
-
-    /**
-     * Indicates that the icon is disabled as the publisher has disabled the actual shortcut.
-     */
-    public static final int FLAG_DISABLED_BY_PUBLISHER = 1 << 4;
-
-    /**
-     * Indicates that the icon is disabled as the user partition is currently locked.
-     */
-    public static final int FLAG_DISABLED_LOCKED_USER = 1 << 5;
-
-    /**
-     * Could be disabled, if the the app is installed but unavailable (eg. in safe mode or when
-     * sd-card is not available).
-     */
-    public int isDisabled = DEFAULT;
-
-    /**
      * A message to display when the user tries to start a disabled shortcut.
      * This is currently only used for deep shortcuts.
      */
@@ -142,7 +99,6 @@
         iconResource = info.iconResource;
         status = info.status;
         mInstallProgress = info.mInstallProgress;
-        isDisabled = info.isDisabled;
     }
 
     /** TODO: Remove this.  It's only called by ApplicationInfo.makeShortcut. */
@@ -150,7 +106,6 @@
         super(info);
         title = Utilities.trim(info.title);
         intent = new Intent(info.intent);
-        isDisabled = info.isDisabled;
     }
 
     /**
@@ -219,9 +174,9 @@
         contentDescription = UserManagerCompat.getInstance(context)
                 .getBadgedLabelForUser(label, user);
         if (shortcutInfo.isEnabled()) {
-            isDisabled &= ~FLAG_DISABLED_BY_PUBLISHER;
+            runtimeStatusFlags &= ~FLAG_DISABLED_BY_PUBLISHER;
         } else {
-            isDisabled |= FLAG_DISABLED_BY_PUBLISHER;
+            runtimeStatusFlags |= FLAG_DISABLED_BY_PUBLISHER;
         }
         disabledMessage = shortcutInfo.getDisabledMessage();
     }
@@ -233,11 +188,6 @@
     }
 
     @Override
-    public boolean isDisabled() {
-        return isDisabled != 0;
-    }
-
-    @Override
     public ComponentName getTargetComponent() {
         ComponentName cn = super.getTargetComponent();
         if (cn == null && (itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT
diff --git a/src/com/android/launcher3/UninstallDropTarget.java b/src/com/android/launcher3/UninstallDropTarget.java
index 4393819..68a441a 100644
--- a/src/com/android/launcher3/UninstallDropTarget.java
+++ b/src/com/android/launcher3/UninstallDropTarget.java
@@ -1,5 +1,8 @@
 package com.android.launcher3;
 
+import static com.android.launcher3.ItemInfoWithIcon.FLAG_SYSTEM_MASK;
+import static com.android.launcher3.ItemInfoWithIcon.FLAG_SYSTEM_NO;
+
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -10,22 +13,28 @@
 import android.os.Bundle;
 import android.os.UserHandle;
 import android.os.UserManager;
+import android.util.ArrayMap;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.View;
 import android.widget.Toast;
 
 import com.android.launcher3.Launcher.OnResumeCallback;
+import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
 
 import java.net.URISyntaxException;
 
-public class UninstallDropTarget extends ButtonDropTarget {
+public class UninstallDropTarget extends ButtonDropTarget implements OnAlarmListener {
 
     private static final String TAG = "UninstallDropTarget";
-    private static Boolean sUninstallDisabled;
+
+    private static final long CACHE_EXPIRE_TIMEOUT = 5000;
+    private final ArrayMap<UserHandle, Boolean> mUninstallDisabledCache = new ArrayMap<>(1);
+
+    private final Alarm mCacheExpireAlarm;
 
     public UninstallDropTarget(Context context, AttributeSet attrs) {
         this(context, attrs, 0);
@@ -33,6 +42,9 @@
 
     public UninstallDropTarget(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
+
+        mCacheExpireAlarm = new Alarm();
+        mCacheExpireAlarm.setOnAlarmListener(this);
     }
 
     @Override
@@ -48,34 +60,45 @@
     }
 
     @Override
-    protected boolean supportsDrop(ItemInfo info) {
-        return supportsDrop(getContext(), info);
+    public void onAlarm(Alarm alarm) {
+        mUninstallDisabledCache.clear();
     }
 
-    public static boolean supportsDrop(Context context, ItemInfo info) {
-        if (sUninstallDisabled == null) {
-            UserManager userManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
-            Bundle restrictions = userManager.getUserRestrictions();
-            sUninstallDisabled = restrictions.getBoolean(UserManager.DISALLOW_APPS_CONTROL, false)
+    @Override
+    public int getAccessibilityAction() {
+        return LauncherAccessibilityDelegate.UNINSTALL;
+    }
+
+    @Override
+    protected boolean supportsDrop(ItemInfo info) {
+        Boolean uninstallDisabled = mUninstallDisabledCache.get(info.user);
+        if (uninstallDisabled == null) {
+            UserManager userManager =
+                    (UserManager) getContext().getSystemService(Context.USER_SERVICE);
+            Bundle restrictions = userManager.getUserRestrictions(info.user);
+            uninstallDisabled = restrictions.getBoolean(UserManager.DISALLOW_APPS_CONTROL, false)
                     || restrictions.getBoolean(UserManager.DISALLOW_UNINSTALL_APPS, false);
+            mUninstallDisabledCache.put(info.user, uninstallDisabled);
         }
-        if (sUninstallDisabled) {
+        // Cancel any pending alarm and set cache expiry after some time
+        mCacheExpireAlarm.setAlarm(CACHE_EXPIRE_TIMEOUT);
+        if (uninstallDisabled) {
             return false;
         }
 
-        if (info instanceof AppInfo) {
-            AppInfo appInfo = (AppInfo) info;
-            if (appInfo.isSystemApp != AppInfo.FLAG_SYSTEM_UNKNOWN) {
-                return (appInfo.isSystemApp & AppInfo.FLAG_SYSTEM_NO) != 0;
+        if (info instanceof ItemInfoWithIcon) {
+            ItemInfoWithIcon iconInfo = (ItemInfoWithIcon) info;
+            if ((iconInfo.runtimeStatusFlags & FLAG_SYSTEM_MASK) != 0) {
+                return (iconInfo.runtimeStatusFlags & FLAG_SYSTEM_NO) != 0;
             }
         }
-        return getUninstallTarget(context, info) != null;
+        return getUninstallTarget(info) != null;
     }
 
     /**
      * @return the component name that should be uninstalled or null.
      */
-    private static ComponentName getUninstallTarget(Context context, ItemInfo item) {
+    private ComponentName getUninstallTarget(ItemInfo item) {
         Intent intent = null;
         UserHandle user = null;
         if (item != null &&
@@ -84,7 +107,7 @@
             user = item.user;
         }
         if (intent != null) {
-            LauncherActivityInfo info = LauncherAppsCompat.getInstance(context)
+            LauncherActivityInfo info = LauncherAppsCompat.getInstance(mLauncher)
                     .resolveActivity(intent, user);
             if (info != null
                     && (info.getApplicationInfo().flags & ApplicationInfo.FLAG_SYSTEM) == 0) {
@@ -103,7 +126,7 @@
 
     @Override
     public void completeDrop(final DragObject d) {
-        ComponentName target = performDropAction(d);
+        ComponentName target = performDropAction(d.dragInfo);
         if (d.dragSource instanceof DeferredOnComplete) {
             DeferredOnComplete deferred = (DeferredOnComplete) d.dragSource;
             if (target != null) {
@@ -119,27 +142,19 @@
      * Performs the drop action and returns the target component for the dragObject or null if
      * the action was not performed.
      */
-    protected ComponentName performDropAction(DragObject d) {
-        return performDropAction(mLauncher, d.dragInfo);
-    }
-
-    /**
-     * Performs the drop action and returns the target component for the dragObject or null if
-     * the action was not performed.
-     */
-    private static ComponentName performDropAction(Context context, ItemInfo info) {
-        ComponentName cn = getUninstallTarget(context, info);
+    protected ComponentName performDropAction(ItemInfo info) {
+        ComponentName cn = getUninstallTarget(info);
         if (cn == null) {
             // System applications cannot be installed. For now, show a toast explaining that.
             // We may give them the option of disabling apps this way.
-            Toast.makeText(context, R.string.uninstall_system_app_text, Toast.LENGTH_SHORT).show();
+            Toast.makeText(mLauncher, R.string.uninstall_system_app_text, Toast.LENGTH_SHORT).show();
             return null;
         }
         try {
-            Intent i = Intent.parseUri(context.getString(R.string.delete_package_intent), 0)
+            Intent i = Intent.parseUri(mLauncher.getString(R.string.delete_package_intent), 0)
                     .setData(Uri.fromParts("package", cn.getPackageName(), cn.getClassName()))
                     .putExtra(Intent.EXTRA_USER, info.user);
-            context.startActivity(i);
+            mLauncher.startActivity(i);
             return cn;
         } catch (URISyntaxException e) {
             Log.e(TAG, "Failed to parse intent to start uninstall activity for item=" + info);
@@ -147,8 +162,9 @@
         }
     }
 
-    public static boolean startUninstallActivity(Launcher launcher, ItemInfo info) {
-        return performDropAction(launcher, info) != null;
+    @Override
+    public void onAccessibilityDrop(View view, ItemInfo item) {
+        performDropAction(item);
     }
 
     /**
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index 7167778..e6bc770 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -614,6 +614,12 @@
         return c == null || c.isEmpty();
     }
 
+    public static boolean isAccessibilityEnabled(Context context) {
+        AccessibilityManager accessibilityManager = (AccessibilityManager)
+                context.getSystemService(Context.ACCESSIBILITY_SERVICE);
+        return accessibilityManager.isEnabled();
+    }
+
     public static void sendCustomAccessibilityEvent(View target, int type, String text) {
         AccessibilityManager accessibilityManager = (AccessibilityManager)
                 target.getContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
diff --git a/src/com/android/launcher3/VerticalSwipeController.java b/src/com/android/launcher3/VerticalSwipeController.java
new file mode 100644
index 0000000..b3dc176
--- /dev/null
+++ b/src/com/android/launcher3/VerticalSwipeController.java
@@ -0,0 +1,282 @@
+/*
+ * 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;
+
+import static com.android.launcher3.LauncherState.ALL_APPS;
+import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.anim.Interpolators.scrollInterpolatorForVelocity;
+import static com.android.launcher3.anim.SpringAnimationHandler.Y_DIRECTION;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.ValueAnimator;
+import android.support.animation.SpringAnimation;
+import android.util.Log;
+import android.view.MotionEvent;
+
+import com.android.launcher3.allapps.AllAppsContainerView;
+import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.anim.SpringAnimationHandler;
+import com.android.launcher3.touch.SwipeDetector;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
+import com.android.launcher3.util.TouchController;
+
+import java.util.ArrayList;
+
+/**
+ * Handles vertical touch gesture on the DragLayer
+ */
+public class VerticalSwipeController extends AnimatorListenerAdapter
+        implements TouchController, SwipeDetector.Listener {
+
+    private static final String TAG = "VerticalSwipeController";
+
+    private static final float RECATCH_REJECTION_FRACTION = .0875f;
+    private static final int SINGLE_FRAME_MS = 16;
+
+    // Progress after which the transition is assumed to be a success in case user does not fling
+    private static final float SUCCESS_TRANSITION_PROGRESS = 0.5f;
+
+    private final Launcher mLauncher;
+    private final SwipeDetector mDetector;
+
+    private boolean mNoIntercept;
+    private int mStartContainerType;
+
+    private AnimatorPlaybackController mCurrentAnimation;
+    private LauncherState mToState;
+
+    private float mStartProgress;
+    // Ratio of transition process [0, 1] to drag displacement (px)
+    private float mProgressMultiplier;
+
+    private SpringAnimationHandler[] mSpringHandlers;
+
+    public VerticalSwipeController(Launcher l) {
+        mLauncher = l;
+        mDetector = new SwipeDetector(l, this, SwipeDetector.VERTICAL);
+    }
+
+    private boolean canInterceptTouch(MotionEvent ev) {
+        if (!mLauncher.isInState(NORMAL) && !mLauncher.isInState(ALL_APPS)) {
+            // Don't listen for the swipe gesture if we are already in some other state.
+            return false;
+        }
+        if (mCurrentAnimation != null) {
+            // If we are already animating from a previous state, we can intercept.
+            return true;
+        }
+        if (mLauncher.isInState(ALL_APPS) && !mLauncher.getAppsView().shouldContainerScroll(ev)) {
+            return false;
+        }
+        if (AbstractFloatingView.getTopOpenView(mLauncher) != null) {
+            return false;
+        }
+
+        return true;
+    }
+
+    @Override
+    public void onAnimationCancel(Animator animation) {
+        if (mCurrentAnimation != null && animation == mCurrentAnimation.getTarget()) {
+            Log.e(TAG, "Who dare cancel the animation when I am in control", new Exception());
+            mDetector.finishedScrolling();
+            mCurrentAnimation = null;
+        }
+    }
+
+    private void initSprings() {
+        AllAppsContainerView appsView = mLauncher.getAppsView();
+
+        SpringAnimationHandler handler = appsView.getSpringAnimationHandler();
+        if (handler == null) {
+            mSpringHandlers = new SpringAnimationHandler[0];
+            return;
+        }
+
+        ArrayList<SpringAnimationHandler> handlers = new ArrayList<>();
+        handlers.add(handler);
+
+        SpringAnimation searchSpring = appsView.getSearchUiManager().getSpringForFling();
+        if (searchSpring != null) {
+            SpringAnimationHandler searchHandler =
+                    new SpringAnimationHandler(Y_DIRECTION, handler.getFactory());
+            searchHandler.add(searchSpring, true /* setDefaultValues */);
+            handlers.add(searchHandler);
+        }
+
+        mSpringHandlers = handlers.toArray(new SpringAnimationHandler[handlers.size()]);
+    }
+
+    @Override
+    public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
+        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
+            mNoIntercept = !canInterceptTouch(ev);
+            if (mNoIntercept) {
+                return false;
+            }
+
+            // Now figure out which direction scroll events the controller will start
+            // calling the callbacks.
+            final int directionsToDetectScroll;
+            boolean ignoreSlopWhenSettling = false;
+
+            if (mCurrentAnimation != null) {
+                if (mCurrentAnimation.getProgressFraction() > 1 - RECATCH_REJECTION_FRACTION) {
+                    directionsToDetectScroll = SwipeDetector.DIRECTION_POSITIVE;
+                } else if (mCurrentAnimation.getProgressFraction() < RECATCH_REJECTION_FRACTION ) {
+                    directionsToDetectScroll = SwipeDetector.DIRECTION_NEGATIVE;
+                } else {
+                    directionsToDetectScroll = SwipeDetector.DIRECTION_BOTH;
+                    ignoreSlopWhenSettling = true;
+                }
+            } else {
+                if (mLauncher.isInState(ALL_APPS)) {
+                    directionsToDetectScroll = SwipeDetector.DIRECTION_NEGATIVE;
+                    mStartContainerType = ContainerType.ALLAPPS;
+                } else {
+                    directionsToDetectScroll = SwipeDetector.DIRECTION_POSITIVE;
+                    mStartContainerType = mLauncher.getDragLayer().isEventOverHotseat(ev) ?
+                            ContainerType.HOTSEAT : ContainerType.WORKSPACE;
+                }
+            }
+
+            mDetector.setDetectableScrollConditions(
+                    directionsToDetectScroll, ignoreSlopWhenSettling);
+
+            if (mSpringHandlers == null) {
+                initSprings();
+            }
+        }
+
+        if (mNoIntercept) {
+            return false;
+        }
+
+        onControllerTouchEvent(ev);
+        return mDetector.isDraggingOrSettling();
+    }
+
+    @Override
+    public boolean onControllerTouchEvent(MotionEvent ev) {
+        for (SpringAnimationHandler h : mSpringHandlers) {
+            h.addMovement(ev);
+        }
+        return mDetector.onTouchEvent(ev);
+    }
+
+    @Override
+    public void onDragStart(boolean start) {
+        if (mCurrentAnimation == null) {
+            float range = getShiftRange();
+            long maxAccuracy = (long) (2 * range);
+
+            // Build current animation
+            mToState = mLauncher.isInState(ALL_APPS) ? NORMAL : ALL_APPS;
+            mCurrentAnimation = mLauncher.getStateManager()
+                    .createAnimationToNewWorkspace(mToState, maxAccuracy);
+            mCurrentAnimation.getTarget().addListener(this);
+            mStartProgress = 0;
+            mProgressMultiplier = (mLauncher.isInState(ALL_APPS) ? 1 : -1) / range;
+            mCurrentAnimation.dispatchOnStart();
+        } else {
+            mCurrentAnimation.pause();
+            mStartProgress = mCurrentAnimation.getProgressFraction();
+        }
+
+        for (SpringAnimationHandler h : mSpringHandlers) {
+            h.skipToEnd();
+        }
+    }
+
+    private float getShiftRange() {
+        return mLauncher.mAllAppsController.getShiftRange();
+    }
+
+    @Override
+    public boolean onDrag(float displacement, float velocity) {
+        float deltaProgress = mProgressMultiplier * displacement;
+        mCurrentAnimation.setPlayFraction(deltaProgress + mStartProgress);
+        return true;
+    }
+
+    @Override
+    public void onDragEnd(float velocity, boolean fling) {
+        final long animationDuration;
+        final int logAction;
+        final LauncherState targetState;
+        final float progress = mCurrentAnimation.getProgressFraction();
+
+        if (fling) {
+            logAction = Touch.FLING;
+            if (velocity < 0) {
+                targetState = ALL_APPS;
+                animationDuration = SwipeDetector.calculateDuration(velocity,
+                        mToState == ALL_APPS ? (1 - progress) : progress);
+            } else {
+                targetState = NORMAL;
+                animationDuration = SwipeDetector.calculateDuration(velocity,
+                        mToState == ALL_APPS ? progress : (1 - progress));
+            }
+            // snap to top or bottom using the release velocity
+        } else {
+            logAction = Touch.SWIPE;
+            if (progress > SUCCESS_TRANSITION_PROGRESS) {
+                targetState = mToState;
+                animationDuration = SwipeDetector.calculateDuration(velocity, 1 - progress);
+            } else {
+                targetState = mToState == ALL_APPS ? NORMAL : ALL_APPS;
+                animationDuration = SwipeDetector.calculateDuration(velocity, progress);
+            }
+        }
+
+        if (fling && targetState == ALL_APPS) {
+            for (SpringAnimationHandler h : mSpringHandlers) {
+                // The icons are moving upwards, so we go to 0 from 1. (y-axis 1 is below 0.)
+                h.animateToFinalPosition(0 /* pos */, 1 /* startValue */);
+            }
+        }
+
+        mCurrentAnimation.setEndAction(new Runnable() {
+            @Override
+            public void run() {
+                if (targetState == mToState) {
+                    // Transition complete. log the action
+                    mLauncher.getUserEventDispatcher().logActionOnContainer(logAction,
+                            mToState == ALL_APPS ? Direction.UP : Direction.DOWN,
+                            mStartContainerType, mLauncher.getWorkspace().getCurrentPage());
+                } else {
+                    mLauncher.getStateManager().goToState(
+                            mToState == ALL_APPS ? NORMAL : ALL_APPS, false);
+                }
+                mDetector.finishedScrolling();
+                mCurrentAnimation = null;
+            }
+        });
+
+        float nextFrameProgress = Utilities.boundToRange(
+                progress + velocity * SINGLE_FRAME_MS / getShiftRange(), 0f, 1f);
+
+        ValueAnimator anim = mCurrentAnimation.getAnimationPlayer();
+        anim.setFloatValues(nextFrameProgress, targetState == mToState ? 1f : 0f);
+        anim.setDuration(animationDuration);
+        anim.setInterpolator(scrollInterpolatorForVelocity(velocity));
+        anim.start();
+    }
+}
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 213eaad..0db5a16 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -16,10 +16,13 @@
 
 package com.android.launcher3;
 
-import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_NEXT_FRAME;
-import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY;
 import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
+import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY;
 import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_TRANSITION_MS;
+import static com.android.launcher3.LauncherState.ALL_APPS;
+import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.LauncherState.SPRING_LOADED;
+import static com.android.launcher3.Utilities.isAccessibilityEnabled;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -51,22 +54,17 @@
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
-import android.view.ViewDebug;
 import android.view.ViewGroup;
-import android.view.accessibility.AccessibilityManager;
-import android.view.accessibility.AccessibilityNodeInfo;
-import android.view.animation.DecelerateInterpolator;
-import android.view.animation.Interpolator;
 import android.widget.Toast;
 
 import com.android.launcher3.Launcher.LauncherOverlay;
 import com.android.launcher3.LauncherAppWidgetHost.ProviderChangedListener;
-import com.android.launcher3.LauncherStateTransitionAnimation.AnimationConfig;
+import com.android.launcher3.LauncherStateManager.AnimationConfig;
 import com.android.launcher3.accessibility.AccessibleDragListenerAdapter;
-import com.android.launcher3.accessibility.OverviewAccessibilityDelegate;
 import com.android.launcher3.accessibility.OverviewScreenAccessibilityDelegate;
 import com.android.launcher3.accessibility.WorkspaceAccessibilityHelper;
 import com.android.launcher3.anim.AnimationLayerSet;
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.badge.FolderBadgeInfo;
 import com.android.launcher3.compat.AppWidgetManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
@@ -82,6 +80,7 @@
 import com.android.launcher3.graphics.PreloadIconDrawable;
 import com.android.launcher3.popup.PopupContainerWithArrow;
 import com.android.launcher3.shortcuts.ShortcutDragPreviewProvider;
+import com.android.launcher3.uioverrides.UiFactory;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
@@ -105,7 +104,7 @@
 public class Workspace extends PagedView
         implements DropTarget, DragSource, View.OnTouchListener,
         DragController.DragListener, ViewGroup.OnHierarchyChangeListener,
-        Insettable {
+        Insettable, LauncherStateManager.StateHandler {
     private static final String TAG = "Launcher.Workspace";
 
     /** The value that {@link #mTransitionProgress} must be greater than for
@@ -173,16 +172,11 @@
     @Thunk final Launcher mLauncher;
     @Thunk DragController mDragController;
 
-    // These are temporary variables to prevent having to allocate a new object just to
-    // return an (x, y) value from helper functions. Do NOT use them to maintain other state.
-    private static final Rect sTempRect = new Rect();
-
     private final int[] mTempXY = new int[2];
     @Thunk float[] mDragViewVisualCenter = new float[2];
     private final float[] mTempTouchCoordinates = new float[2];
 
     private SpringLoadedDragController mSpringLoadedDragController;
-    private final float mOverviewModeShrinkFactor;
 
     // Direction used for moving the workspace and hotseat UI
     public enum Direction {
@@ -209,8 +203,6 @@
      */
     private final float[] mHotseatAlpha = new float[] {1, 1, 1};
 
-    @ViewDebug.ExportedProperty(category = "launcher")
-    private LauncherState mState = LauncherState.NORMAL;
     private boolean mIsSwitchingState = false;
 
     boolean mChildrenLayersEnabled = true;
@@ -271,6 +263,8 @@
     boolean mOverlayShown = false;
 
     private boolean mForceDrawAdjacentPages = false;
+    private boolean mPageRearrangeEnabled = false;
+
     // Total over scrollX in the overlay direction.
     private float mOverlayTranslation;
 
@@ -301,14 +295,11 @@
 
         mLauncher = Launcher.getLauncher(context);
         mStateTransitionAnimation = new WorkspaceStateTransitionAnimation(mLauncher, this);
-        final Resources res = getResources();
         DeviceProfile grid = mLauncher.getDeviceProfile();
         mWorkspaceFadeInAdjacentScreens = grid.shouldFadeAdjacentWorkspaceScreens();
         mWallpaperManager = WallpaperManager.getInstance(context);
 
         mWallpaperOffset = new WallpaperOffsetInterpolator(this);
-        mOverviewModeShrinkFactor =
-                res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100f;
 
         setOnHierarchyChangeListener(this);
         setHapticFeedbackEnabled(false);
@@ -416,7 +407,7 @@
         }
 
         // Always enter the spring loaded mode
-        mLauncher.enterSpringLoadedDragMode();
+        mLauncher.getStateManager().goToState(SPRING_LOADED);
     }
 
     public void deferRemoveExtraEmptyScreen() {
@@ -448,9 +439,7 @@
         setClipChildren(false);
         setClipToPadding(false);
 
-        setMinScale(mOverviewModeShrinkFactor);
         setupLayoutTransition();
-
         mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx);
 
         // Set the wallpaper dimensions when Launcher starts up
@@ -460,7 +449,7 @@
     @Override
     public void initParentViews(View parent) {
         super.initParentViews(parent);
-        mPageIndicator.setAccessibilityDelegate(new OverviewAccessibilityDelegate());
+        mPageIndicator.setAccessibilityDelegate(UiFactory.newPageIndicatorAccessibilityDelegate());
     }
 
     private void setupLayoutTransition() {
@@ -578,6 +567,8 @@
         mWorkspaceScreens.put(screenId, newScreen);
         mScreenOrder.add(insertIndex, screenId);
         addView(newScreen, insertIndex);
+        mStateTransitionAnimation.applyChildState(
+                mLauncher.getStateManager().getState(), newScreen, insertIndex);
 
         if (mLauncher.getAccessibilityDelegate().isInAccessibleDrag()) {
             newScreen.enableAccessibleDrag(true, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG);
@@ -1126,7 +1117,7 @@
         enableHwLayersOnVisiblePages();
     }
 
-    private void showPageIndicatorAtCurrentScroll() {
+    public void showPageIndicatorAtCurrentScroll() {
         if (mPageIndicator != null) {
             mPageIndicator.setScroll(getScrollX(), computeMaxScrollX());
         }
@@ -1164,8 +1155,6 @@
                 super.shouldFlingForVelocity(velocityX);
     }
 
-    private final Interpolator mAlphaInterpolator = new DecelerateInterpolator(3f);
-
     /**
      * The overlay scroll is being controlled locally, just update our overlay effect
      */
@@ -1190,7 +1179,7 @@
         scroll = Math.max(scroll - offset, 0);
         scroll = Math.min(1, scroll / (1 - offset));
 
-        float alpha = 1 - mAlphaInterpolator.getInterpolation(scroll);
+        float alpha = 1 - Interpolators.DEACCEL_3.getInterpolation(scroll);
         float transX = mLauncher.getDragLayer().getMeasuredWidth() * scroll;
         transX *= 1 - slip;
 
@@ -1282,7 +1271,7 @@
                 }
             });
 
-            final boolean accessibilityEnabled = isAccessibilityEnabled();
+            final boolean accessibilityEnabled = isAccessibilityEnabled(mLauncher);
             animator.addUpdateListener(
                     new AlphaUpdateListener(mLauncher.getHotseat(), accessibilityEnabled));
             animator.addUpdateListener(
@@ -1291,12 +1280,6 @@
         }
     }
 
-    protected boolean isAccessibilityEnabled() {
-        AccessibilityManager am = (AccessibilityManager)
-                mLauncher.getSystemService(Context.ACCESSIBILITY_SERVICE);
-        return am.isEnabled();
-    }
-
     @Override
     protected void notifyPageSwitchListener(int prevPage) {
         super.notifyPageSwitchListener(prevPage);
@@ -1351,7 +1334,7 @@
     @Override
     public void announceForAccessibility(CharSequence text) {
         // Don't announce if apps is on top of us.
-        if (!mLauncher.isAppsViewVisible()) {
+        if (!mLauncher.isInState(ALL_APPS)) {
             super.announceForAccessibility(text);
         }
     }
@@ -1418,18 +1401,18 @@
         return super.getDescendantFocusability();
     }
 
-    public boolean workspaceInModalState() {
-        return mState != LauncherState.NORMAL;
+    private boolean workspaceInModalState() {
+        return !mLauncher.isInState(NORMAL);
     }
 
     /** Returns whether a drag should be allowed to be started from the current workspace state. */
     public boolean workspaceIconsCanBeDragged() {
-        return mState == LauncherState.NORMAL || mState == LauncherState.SPRING_LOADED;
+        return mLauncher.isInState(NORMAL) || mLauncher.isInState(SPRING_LOADED);
     }
 
     private void updateChildrenLayersEnabled() {
-        boolean small = mState == LauncherState.OVERVIEW || mIsSwitchingState;
-        boolean enableChildrenLayers = small || isPageInTransition();
+        boolean enableChildrenLayers =
+                isPageRearrangeEnabled() || mIsSwitchingState || isPageInTransition();
 
         if (enableChildrenLayers != mChildrenLayersEnabled) {
             mChildrenLayersEnabled = enableChildrenLayers;
@@ -1547,110 +1530,73 @@
         enableLayoutTransitions();
     }
 
-    public boolean isInOverviewMode() {
-        return mState == LauncherState.OVERVIEW;
-    }
-
     public void snapToPageFromOverView(int whichPage) {
-        snapToPage(whichPage, OVERVIEW_TRANSITION_MS, new ZoomInInterpolator());
+        snapToPage(whichPage, OVERVIEW_TRANSITION_MS, Interpolators.ZOOM_IN);
     }
 
-    int getOverviewModeTranslationY() {
-        DeviceProfile grid = mLauncher.getDeviceProfile();
-        int overviewButtonBarHeight = grid.getOverviewModeButtonBarHeight();
+    private void onStartStateTransition(LauncherState state) {
+        mIsSwitchingState = true;
+        mTransitionProgress = 0;
 
-        int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight());
-        Rect workspacePadding = grid.getWorkspacePadding(sTempRect);
-        int workspaceTop = mInsets.top + workspacePadding.top;
-        int workspaceBottom = getViewportHeight() - mInsets.bottom - workspacePadding.bottom;
-        int overviewTop = mInsets.top;
-        int overviewBottom = getViewportHeight() - mInsets.bottom - overviewButtonBarHeight;
-        int workspaceOffsetTopEdge = workspaceTop + ((workspaceBottom - workspaceTop) - scaledHeight) / 2;
-        int overviewOffsetTopEdge = overviewTop + (overviewBottom - overviewTop - scaledHeight) / 2;
-        return -workspaceOffsetTopEdge + overviewOffsetTopEdge;
+        updateChildrenLayersEnabled();
     }
 
-    float getSpringLoadedTranslationY() {
-        DeviceProfile grid = mLauncher.getDeviceProfile();
-        if (grid.isVerticalBarLayout() || getChildCount() == 0) {
-            return 0;
-        }
+    private void onEndStateTransition() {
+        mIsSwitchingState = false;
+        mForceDrawAdjacentPages = false;
+        mTransitionProgress = 1;
 
-        float scaledHeight = grid.workspaceSpringLoadShrinkFactor * getNormalChildHeight();
-        float shrunkTop = mInsets.top + grid.dropTargetBarSizePx;
-        float shrunkBottom = getViewportHeight() - mInsets.bottom
-                - grid.getWorkspacePadding(sTempRect).bottom
-                - grid.workspaceSpringLoadedBottomSpace;
-        float totalShrunkSpace = shrunkBottom - shrunkTop;
-
-        float desiredCellTop = shrunkTop + (totalShrunkSpace - scaledHeight) / 2;
-
-        float halfHeight = getHeight() / 2;
-        float myCenter = getTop() + halfHeight;
-        float cellTopFromCenter = halfHeight - getChildAt(0).getTop();
-        float actualCellTop = myCenter - cellTopFromCenter * grid.workspaceSpringLoadShrinkFactor;
-        return (desiredCellTop - actualCellTop) / grid.workspaceSpringLoadShrinkFactor;
+        updateChildrenLayersEnabled();
+        updateAccessibilityFlags();
     }
 
-    float getOverviewModeShrinkFactor() {
-        return mOverviewModeShrinkFactor;
-    }
-
-
     /**
      * Sets the current workspace {@link LauncherState} and updates the UI without any animations
      */
+    @Override
     public void setState(LauncherState toState) {
-        // Update the current state
-        mState = toState;
-        mStateTransitionAnimation.setState(mState);
-
-        updateAccessibilityFlags();
-        onPrepareStateTransition(mState.hasMultipleVisiblePages);
-        onStartStateTransition();
+        onStartStateTransition(toState);
+        mStateTransitionAnimation.setState(toState);
         onEndStateTransition();
     }
 
     /**
      * Sets the current workspace {@link LauncherState}, then animates the UI
      */
+    @Override
     public void setStateWithAnimation(LauncherState toState, AnimationLayerSet layerViews,
             AnimatorSet anim, AnimationConfig config) {
-        final LauncherState fromState = mState;
+        StateTransitionListener listener = new StateTransitionListener(toState);
+        mStateTransitionAnimation.setStateWithAnimation(toState, anim, layerViews, config);
 
-        // Update the current state
-        mState = toState;
-        mStateTransitionAnimation.setStateWithAnimation(
-                fromState, toState, anim, layerViews, config);
+        // Invalidate the pages now, so that we have the visible pages before the
+        // animation is started
+        if (toState.hasMultipleVisiblePages) {
+            mForceDrawAdjacentPages = true;
+        }
+        invalidate(); // This will call dispatchDraw(), which calls getVisiblePages().
 
-        updateAccessibilityFlags();
-        onPrepareStateTransition(mState.hasMultipleVisiblePages);
-
-        StateTransitionListener listener = new StateTransitionListener();
         ValueAnimator stepAnimator = ValueAnimator.ofFloat(0, 1);
         stepAnimator.addUpdateListener(listener);
-
+        stepAnimator.setDuration(config.duration);
         anim.play(stepAnimator);
         anim.addListener(listener);
     }
 
-    public LauncherState getState() {
-        return mState;
-    }
-
     public void updateAccessibilityFlags() {
         // TODO: Update the accessibility flags appropriately when dragging.
+        int accessibilityFlag = mLauncher.getStateManager().getState().workspaceAccessibilityFlag;
         if (!mLauncher.getAccessibilityDelegate().isInAccessibleDrag()) {
             int total = getPageCount();
             for (int i = 0; i < total; i++) {
-                updateAccessibilityFlags((CellLayout) getPageAt(i), i);
+                updateAccessibilityFlags(accessibilityFlag, (CellLayout) getPageAt(i), i);
             }
-            setImportantForAccessibility(mState.workspaceAccessibilityFlag);
+            setImportantForAccessibility(accessibilityFlag);
         }
     }
 
-    private void updateAccessibilityFlags(CellLayout page, int pageNo) {
-        if (mState == LauncherState.OVERVIEW) {
+    private void updateAccessibilityFlags(int accessibilityFlag, CellLayout page, int pageNo) {
+        if (isPageRearrangeEnabled()) {
             page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES);
             page.getShortcutsAndWidgets().setImportantForAccessibility(
                     IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS);
@@ -1665,50 +1611,25 @@
             }
         } else {
             page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO);
-            page.getShortcutsAndWidgets()
-                    .setImportantForAccessibility(mState.workspaceAccessibilityFlag);
+            page.getShortcutsAndWidgets().setImportantForAccessibility(accessibilityFlag);
             page.setContentDescription(null);
             page.setAccessibilityDelegate(null);
         }
     }
 
-    public void onPrepareStateTransition(boolean multiplePagesVisible) {
-        mIsSwitchingState = true;
-        mTransitionProgress = 0;
-
-        if (multiplePagesVisible) {
-            mForceDrawAdjacentPages = true;
+    public void setPageRearrangeEnabled(boolean isEnabled) {
+        if (mPageRearrangeEnabled != isEnabled) {
+            mPageRearrangeEnabled = isEnabled;
+            if (isEnabled) {
+                enableFreeScroll();
+            } else {
+                disableFreeScroll();
+            }
         }
-        invalidate(); // This will call dispatchDraw(), which calls getVisiblePages().
-
-        updateChildrenLayersEnabled();
     }
 
-    private void onStartStateTransition() {
-        if (mState == LauncherState.SPRING_LOADED) {
-            // Show the page indicator at the same time as the rest of the transition.
-            showPageIndicatorAtCurrentScroll();
-        }
-        getPageIndicator().setShouldAutoHide(mState != LauncherState.SPRING_LOADED);
-    }
-
-    public void onEndStateTransition() {
-        mIsSwitchingState = false;
-        updateChildrenLayersEnabled();
-        mForceDrawAdjacentPages = false;
-        mTransitionProgress = 1;
-
-        if (mState == LauncherState.OVERVIEW) {
-            enableFreeScroll();
-        } else {
-            disableFreeScroll();
-        }
-
-        ViewGroup overviewPanel = mLauncher.getOverviewPanel();
-        if (isAccessibilityEnabled() && overviewPanel.getVisibility() == View.VISIBLE) {
-            overviewPanel.getChildAt(0).performAccessibilityAction(
-                    AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS, null);
-        }
+    public boolean isPageRearrangeEnabled() {
+        return mPageRearrangeEnabled;
     }
 
     public void startDrag(CellLayout.CellInfo cellInfo, DragOptions options) {
@@ -1807,8 +1728,8 @@
     }
 
     private boolean transitionStateShouldAllowDrop() {
-        return ((!isSwitchingState() || mTransitionProgress > ALLOW_DROP_TRANSITION_PROGRESS) &&
-                (mState == LauncherState.NORMAL || mState == LauncherState.SPRING_LOADED));
+        return (!isSwitchingState() || mTransitionProgress > ALLOW_DROP_TRANSITION_PROGRESS) &&
+                workspaceIconsCanBeDragged();
     }
 
     /**
@@ -2079,7 +2000,7 @@
                         dropTargetLayout, mTargetCell, distance, false, d.dragView) ||
                         addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell,
                                 distance, d, false)) {
-                    mLauncher.exitSpringLoadedDragMode(SPRING_LOADED_EXIT_DELAY);
+                    mLauncher.getStateManager().goToState(NORMAL, SPRING_LOADED_EXIT_DELAY);
                     return;
                 }
 
@@ -2194,7 +2115,7 @@
                     // spring-loaded mode so the page meets the icon where it was picked up.
                     mLauncher.getDragController().animateDragViewToOriginalPosition(
                             onCompleteRunnable, cell, SPRING_LOADED_TRANSITION_MS);
-                    mLauncher.exitSpringLoadedDragMode(SPRING_LOADED_EXIT_NEXT_FRAME);
+                    mLauncher.getStateManager().goToState(NORMAL);
                     mLauncher.getDropTargetBar().onDragEnd();
                     parent.onDropChild(cell);
                     return;
@@ -2217,8 +2138,8 @@
             }
             parent.onDropChild(cell);
 
-            mLauncher.exitSpringLoadedDragMode(
-                    SPRING_LOADED_EXIT_DELAY, onCompleteRunnable);
+            mLauncher.getStateManager().goToState(
+                    NORMAL, SPRING_LOADED_EXIT_DELAY, onCompleteRunnable);
         }
 
         if (d.stateAnnouncer != null && !droppedOnOriginalCell) {
@@ -2750,7 +2671,7 @@
         final long screenId = getIdForScreen(cellLayout);
         if (!mLauncher.isHotseatLayout(cellLayout)
                 && screenId != getScreenIdForPageIndex(mCurrentPage)
-                && mState != LauncherState.SPRING_LOADED) {
+                && !mLauncher.isInState(SPRING_LOADED)) {
             snapToPage(getPageIndexForScreenId(screenId));
         }
 
@@ -2825,7 +2746,7 @@
                     animationStyle, finalView, true);
         } else {
             // This is for other drag/drop cases, like dragging from All Apps
-            mLauncher.exitSpringLoadedDragMode(SPRING_LOADED_EXIT_DELAY);
+            mLauncher.getStateManager().goToState(NORMAL, SPRING_LOADED_EXIT_DELAY);
 
             View view;
 
@@ -3026,10 +2947,6 @@
         }
     }
 
-    public WorkspaceStateTransitionAnimation getStateTransitionAnimation() {
-        return mStateTransitionAnimation;
-    }
-
     /**
      * Return the current CellInfo describing our current drag; this method exists
      * so that Launcher can sync this object with the correct info when the activity is created/
@@ -3567,16 +3484,6 @@
         }
     }
 
-    @Override
-    public boolean enableFreeScroll() {
-        if (getState() == LauncherState.OVERVIEW) {
-            return super.enableFreeScroll();
-        } else {
-            Log.w(TAG, "enableFreeScroll called but not in overview: state=" + getState());
-            return false;
-        }
-    }
-
     /**
      * Used as a workaround to ensure that the AppWidgetService receives the
      * PACKAGE_ADDED broadcast before updating widgets.
@@ -3633,6 +3540,13 @@
 
     private class StateTransitionListener extends AnimatorListenerAdapter
             implements AnimatorUpdateListener {
+
+        private final LauncherState mToState;
+
+        StateTransitionListener(LauncherState toState) {
+            mToState = toState;
+        }
+
         @Override
         public void onAnimationUpdate(ValueAnimator anim) {
             mTransitionProgress = anim.getAnimatedFraction();
@@ -3640,8 +3554,7 @@
 
         @Override
         public void onAnimationStart(Animator animation) {
-            mTransitionProgress = 0;
-            onStartStateTransition();
+            onStartStateTransition(mToState);
         }
 
         @Override
diff --git a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
index 8e215b0..8edec40 100644
--- a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
+++ b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
@@ -30,10 +30,10 @@
 import android.util.Property;
 import android.view.View;
 import android.view.accessibility.AccessibilityManager;
-import android.view.animation.DecelerateInterpolator;
 
-import com.android.launcher3.LauncherStateTransitionAnimation.AnimationConfig;
+import com.android.launcher3.LauncherStateManager.AnimationConfig;
 import com.android.launcher3.anim.AnimationLayerSet;
+import com.android.launcher3.anim.Interpolators;
 
 /**
  * A convenience class to update a view's visibility state after an alpha animation.
@@ -86,65 +86,17 @@
 }
 
 /**
- * This interpolator emulates the rate at which the perceived scale of an object changes
- * as its distance from a camera increases. When this interpolator is applied to a scale
- * animation on a view, it evokes the sense that the object is shrinking due to moving away
- * from the camera.
- */
-class ZInterpolator implements TimeInterpolator {
-    private float focalLength;
-
-    public ZInterpolator(float foc) {
-        focalLength = foc;
-    }
-
-    public float getInterpolation(float input) {
-        return (1.0f - focalLength / (focalLength + input)) /
-                (1.0f - focalLength / (focalLength + 1.0f));
-    }
-}
-
-/**
- * The exact reverse of ZInterpolator.
- */
-class InverseZInterpolator implements TimeInterpolator {
-    private ZInterpolator zInterpolator;
-    public InverseZInterpolator(float foc) {
-        zInterpolator = new ZInterpolator(foc);
-    }
-    public float getInterpolation(float input) {
-        return 1 - zInterpolator.getInterpolation(1 - input);
-    }
-}
-
-/**
- * InverseZInterpolator compounded with an ease-out.
- */
-class ZoomInInterpolator implements TimeInterpolator {
-    private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f);
-    private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f);
-
-    public float getInterpolation(float input) {
-        return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input));
-    }
-}
-
-/**
  * Manages the animations between each of the workspace states.
  */
 public class WorkspaceStateTransitionAnimation {
 
-    private static final PropertySetter NO_ANIM_PROPERTY_SETTER = new PropertySetter();
-
-    private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator();
+    public static final PropertySetter NO_ANIM_PROPERTY_SETTER = new PropertySetter();
 
     public final int mWorkspaceScrimAlpha;
 
     private final Launcher mLauncher;
     private final Workspace mWorkspace;
 
-    private final float mSpringLoadedShrinkFactor;
-    private final float mOverviewModeShrinkFactor;
     private final boolean mWorkspaceFadeInAdjacentScreens;
 
     private float mNewScale;
@@ -155,9 +107,6 @@
 
         DeviceProfile grid = mLauncher.getDeviceProfile();
         Resources res = launcher.getResources();
-        mSpringLoadedShrinkFactor = mLauncher.getDeviceProfile().workspaceSpringLoadShrinkFactor;
-        mOverviewModeShrinkFactor =
-                res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100f;
         mWorkspaceScrimAlpha = res.getInteger(R.integer.config_workspaceScrimAlpha);
         mWorkspaceFadeInAdjacentScreens = grid.shouldFadeAdjacentWorkspaceScreens();
     }
@@ -166,12 +115,10 @@
         setWorkspaceProperty(toState, NO_ANIM_PROPERTY_SETTER);
     }
 
-    public void setStateWithAnimation(LauncherState fromState, LauncherState toState,
-            AnimatorSet anim, AnimationLayerSet layerViews, AnimationConfig config) {
-        long duration = config.getDuration(toState == LauncherState.NORMAL
-                ? fromState.transitionDuration : toState.transitionDuration);
+    public void setStateWithAnimation(LauncherState toState, AnimatorSet anim,
+            AnimationLayerSet layerViews, AnimationConfig config) {
         AnimatedPropertySetter propertySetter =
-                new AnimatedPropertySetter(duration, layerViews, anim);
+                new AnimatedPropertySetter(config.duration, layerViews, anim);
         setWorkspaceProperty(toState, propertySetter);
     }
 
@@ -183,57 +130,45 @@
      * Starts a transition animation for the workspace.
      */
     private void setWorkspaceProperty(LauncherState state, PropertySetter propertySetter) {
-        // Update the workspace state
-        int finalBackgroundAlpha = state.hasScrim ? 255 : 0;
-
-        final float finalWorkspaceTranslationY;
-        switch (state) {
-            case OVERVIEW:
-                mNewScale = mOverviewModeShrinkFactor;
-                finalWorkspaceTranslationY = mWorkspace.getOverviewModeTranslationY();
-                break;
-            case SPRING_LOADED:
-                mNewScale = mSpringLoadedShrinkFactor;
-                finalWorkspaceTranslationY = mWorkspace.getSpringLoadedTranslationY();
-                break;
-            default:
-                mNewScale = 1f;
-                finalWorkspaceTranslationY = 0;
-        }
+        float[] scaleAndTranslationY = state.getWorkspaceScaleAndTranslation(mLauncher);
+        mNewScale = scaleAndTranslationY[0];
+        final float finalWorkspaceTranslationY = scaleAndTranslationY[1];
 
         int toPage = mWorkspace.getPageNearestToCenterOfScreen();
         final int childCount = mWorkspace.getChildCount();
         for (int i = 0; i < childCount; i++) {
-            final CellLayout cl = (CellLayout) mWorkspace.getChildAt(i);
-            propertySetter.setInt(cl.getScrimBackground(),
-                    DRAWABLE_ALPHA, finalBackgroundAlpha, mZoomInInterpolator);
-
-            // Only animate the page alpha when we actually fade pages
-            if (mWorkspaceFadeInAdjacentScreens) {
-                float finalAlpha = state == LauncherState.NORMAL && i != toPage ? 0 : 1f;
-                propertySetter.setFloat(cl.getShortcutsAndWidgets(), View.ALPHA,
-                        finalAlpha, mZoomInInterpolator);
-            }
+            applyChildState(state, (CellLayout) mWorkspace.getChildAt(i), i, toPage,
+                    propertySetter);
         }
 
-        float finalHotseatAlpha = state.hideHotseat ? 0f : 1f;
-
-        // This is true when transitioning between:
-        // - Overview <-> Workspace
-        propertySetter.setViewAlpha(null, mLauncher.getOverviewPanel(), 1 - finalHotseatAlpha);
-        propertySetter.setViewAlpha(mWorkspace.createHotseatAlphaAnimator(finalHotseatAlpha),
-                mLauncher.getHotseat(), finalHotseatAlpha);
-
-        propertySetter.setFloat(mWorkspace, SCALE_PROPERTY, mNewScale, mZoomInInterpolator);
+        propertySetter.setFloat(mWorkspace, SCALE_PROPERTY, mNewScale, Interpolators.ZOOM_IN);
         propertySetter.setFloat(mWorkspace, View.TRANSLATION_Y,
-                finalWorkspaceTranslationY, mZoomInInterpolator);
+                finalWorkspaceTranslationY, Interpolators.ZOOM_IN);
 
         // Set scrim
         propertySetter.setInt(mLauncher.getDragLayer().getScrim(), DRAWABLE_ALPHA,
-                state.hasScrim ? mWorkspaceScrimAlpha : 0, new DecelerateInterpolator(1.5f));
+                state.hasScrim ? mWorkspaceScrimAlpha : 0, Interpolators.DEACCEL_1_5);
     }
 
-    private static class PropertySetter {
+    public void applyChildState(LauncherState state, CellLayout cl, int childIndex) {
+        applyChildState(state, cl, childIndex, mWorkspace.getPageNearestToCenterOfScreen(),
+                NO_ANIM_PROPERTY_SETTER);
+    }
+
+    private void applyChildState(LauncherState state, CellLayout cl, int childIndex,
+            int centerPage, PropertySetter propertySetter) {
+        propertySetter.setInt(cl.getScrimBackground(),
+                DRAWABLE_ALPHA, state.hasScrim ? 255 : 0, Interpolators.ZOOM_IN);
+
+        // Only animate the page alpha when we actually fade pages
+        if (mWorkspaceFadeInAdjacentScreens) {
+            float finalAlpha = state == LauncherState.NORMAL && childIndex != centerPage ? 0 : 1f;
+            propertySetter.setFloat(cl.getShortcutsAndWidgets(), View.ALPHA,
+                    finalAlpha, Interpolators.ZOOM_IN);
+        }
+    }
+
+    public static class PropertySetter {
 
         public void setViewAlpha(Animator anim, View view, float alpha) {
             if (anim != null) {
@@ -261,13 +196,14 @@
         }
     }
 
-    private static class AnimatedPropertySetter extends PropertySetter {
+    public static class AnimatedPropertySetter extends PropertySetter {
 
         private final long mDuration;
         private final AnimationLayerSet mLayerViews;
         private final AnimatorSet mStateAnimator;
 
-        AnimatedPropertySetter(long duration, AnimationLayerSet layerView, AnimatorSet anim) {
+        public AnimatedPropertySetter(
+                long duration, AnimationLayerSet layerView, AnimatorSet anim) {
             mDuration = duration;
             mLayerViews = layerView;
             mStateAnimator = anim;
@@ -311,7 +247,7 @@
         }
 
         private TimeInterpolator getFadeInterpolator(float finalAlpha) {
-            return finalAlpha == 0 ? new DecelerateInterpolator(2) : null;
+            return finalAlpha == 0 ? Interpolators.DEACCEL_2 : null;
         }
     }
 }
\ No newline at end of file
diff --git a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
index 583492e..512db72 100644
--- a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
+++ b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
@@ -1,5 +1,7 @@
 package com.android.launcher3.accessibility;
 
+import static com.android.launcher3.LauncherState.NORMAL;
+
 import android.app.AlertDialog;
 import android.appwidget.AppWidgetProviderInfo;
 import android.content.DialogInterface;
@@ -17,6 +19,7 @@
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.AppWidgetResizeFrame;
 import com.android.launcher3.BubbleTextView;
+import com.android.launcher3.ButtonDropTarget;
 import com.android.launcher3.CellLayout;
 import com.android.launcher3.DeleteDropTarget;
 import com.android.launcher3.DropTarget.DragObject;
@@ -27,6 +30,7 @@
 import com.android.launcher3.LauncherAppWidgetHostView;
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherSettings;
+import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.PendingAddItemInfo;
 import com.android.launcher3.R;
 import com.android.launcher3.ShortcutInfo;
@@ -45,9 +49,9 @@
 
     private static final String TAG = "LauncherAccessibilityDelegate";
 
-    protected static final int REMOVE = R.id.action_remove;
-    protected static final int INFO = R.id.action_info;
-    protected static final int UNINSTALL = R.id.action_uninstall;
+    public static final int REMOVE = R.id.action_remove;
+    public static final int INFO = R.id.action_info;
+    public static final int UNINSTALL = R.id.action_uninstall;
     protected static final int ADD_TO_WORKSPACE = R.id.action_add_to_workspace;
     protected static final int MOVE = R.id.action_move;
     protected static final int MOVE_TO_WORKSPACE = R.id.action_move_to_workspace;
@@ -108,14 +112,10 @@
             info.addAction(mActions.get(DEEP_SHORTCUTS));
         }
 
-        if (DeleteDropTarget.supportsAccessibleDrop(item)) {
-            info.addAction(mActions.get(REMOVE));
-        }
-        if (UninstallDropTarget.supportsDrop(host.getContext(), item)) {
-            info.addAction(mActions.get(UNINSTALL));
-        }
-        if (InfoDropTarget.supportsDrop(host.getContext(), item)) {
-            info.addAction(mActions.get(INFO));
+        for (ButtonDropTarget target : mLauncher.getDropTargetBar().getDropTargets()) {
+            if (target.supportsAccessibilityDrop(item)) {
+                info.addAction(mActions.get(target.getAccessibilityAction()));
+            }
         }
 
         // Do not add move actions for keyboard request as this uses virtual nodes.
@@ -148,27 +148,19 @@
     }
 
     public boolean performAction(final View host, final ItemInfo item, int action) {
-        if (action == REMOVE) {
-            DeleteDropTarget.removeWorkspaceOrFolderItem(mLauncher, item, host);
-            return true;
-        } else if (action == INFO) {
-            InfoDropTarget.startDetailsActivityForInfo(item, mLauncher, null, null);
-            return true;
-        } else if (action == UNINSTALL) {
-            return UninstallDropTarget.startUninstallActivity(mLauncher, item);
-        } else if (action == MOVE) {
+        if (action == MOVE) {
             beginAccessibleDrag(host, item);
         } else if (action == ADD_TO_WORKSPACE) {
             final int[] coordinates = new int[2];
             final long screenId = findSpaceOnWorkspace(item, coordinates);
-            mLauncher.showWorkspace(true, new Runnable() {
+            mLauncher.getStateManager().goToState(NORMAL, true, new Runnable() {
 
                 @Override
                 public void run() {
                     if (item instanceof AppInfo) {
                         ShortcutInfo info = ((AppInfo) item).makeShortcut();
                         mLauncher.getModelWriter().addItemToDatabase(info,
-                                LauncherSettings.Favorites.CONTAINER_DESKTOP,
+                                Favorites.CONTAINER_DESKTOP,
                                 screenId, coordinates[0], coordinates[1]);
 
                         ArrayList<ItemInfo> itemList = new ArrayList<>();
@@ -178,7 +170,7 @@
                         PendingAddItemInfo info = (PendingAddItemInfo) item;
                         Workspace workspace = mLauncher.getWorkspace();
                         workspace.snapToPage(workspace.getPageIndexForScreenId(screenId));
-                        mLauncher.addPendingItem(info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
+                        mLauncher.addPendingItem(info, Favorites.CONTAINER_DESKTOP,
                                 screenId, coordinates, info.spanX, info.spanY);
                     }
                     announceConfirmation(R.string.item_added_to_workspace);
@@ -231,6 +223,13 @@
             return true;
         } else if (action == DEEP_SHORTCUTS) {
             return PopupContainerWithArrow.showForIcon((BubbleTextView) host) != null;
+        } else {
+            for (ButtonDropTarget dropTarget : mLauncher.getDropTargetBar().getDropTargets()) {
+                if (action == dropTarget.getAccessibilityAction()) {
+                    dropTarget.onAccessibilityDrop(host, item);
+                    return true;
+                }
+            }
         }
         return false;
     }
diff --git a/src/com/android/launcher3/accessibility/ShortcutMenuAccessibilityDelegate.java b/src/com/android/launcher3/accessibility/ShortcutMenuAccessibilityDelegate.java
index 5b7353a..cfb0520 100644
--- a/src/com/android/launcher3/accessibility/ShortcutMenuAccessibilityDelegate.java
+++ b/src/com/android/launcher3/accessibility/ShortcutMenuAccessibilityDelegate.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.accessibility;
 
+import static com.android.launcher3.LauncherState.NORMAL;
+
 import android.view.View;
 import android.view.accessibility.AccessibilityNodeInfo;
 import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
@@ -79,9 +81,7 @@
                 }
             };
 
-            if (!mLauncher.showWorkspace(true, onComplete)) {
-                onComplete.run();
-            }
+            mLauncher.getStateManager().goToState(NORMAL, true, onComplete);
             return true;
         } else if (action == DISMISS_NOTIFICATION) {
             if (!(host instanceof NotificationMainView)) {
diff --git a/src/com/android/launcher3/allapps/AllAppsCaretController.java b/src/com/android/launcher3/allapps/AllAppsCaretController.java
deleted file mode 100644
index 583b49f..0000000
--- a/src/com/android/launcher3/allapps/AllAppsCaretController.java
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * 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.allapps;
-
-import android.animation.ObjectAnimator;
-import android.view.animation.AnimationUtils;
-import android.view.animation.Interpolator;
-
-import com.android.launcher3.Launcher;
-import com.android.launcher3.R;
-import com.android.launcher3.pageindicators.CaretDrawable;
-import com.android.launcher3.touch.SwipeDetector;
-
-public class AllAppsCaretController {
-    // Determines when the caret should flip. Should be accessed via getThreshold()
-    private static final float CARET_THRESHOLD = 0.015f;
-    private static final float CARET_THRESHOLD_LAND = 0.5f;
-    // The velocity at which the caret will peak (i.e. exhibit a 90 degree bend)
-    private static final float PEAK_VELOCITY = SwipeDetector.RELEASE_VELOCITY_PX_MS * .7f;
-
-    private Launcher mLauncher;
-
-    private ObjectAnimator mCaretAnimator;
-    private CaretDrawable mCaretDrawable;
-    private float mLastCaretProgress;
-    private boolean mThresholdCrossed;
-
-    public AllAppsCaretController(CaretDrawable caret, Launcher launcher) {
-        mLauncher = launcher;
-        mCaretDrawable = caret;
-
-        final long caretAnimationDuration = launcher.getResources().getInteger(
-                R.integer.config_caretAnimationDuration);
-        final Interpolator caretInterpolator = AnimationUtils.loadInterpolator(launcher,
-                android.R.interpolator.fast_out_slow_in);
-
-        // We will set values later
-        mCaretAnimator = ObjectAnimator.ofFloat(mCaretDrawable, "caretProgress", 0);
-        mCaretAnimator.setDuration(caretAnimationDuration);
-        mCaretAnimator.setInterpolator(caretInterpolator);
-    }
-
-    /**
-     * Updates the state of the caret based on the progress of the {@link AllAppsContainerView}, as
-     * defined by the {@link AllAppsTransitionController}. Uses the container's velocity to adjust
-     * angle of caret.
-     *
-     * @param containerProgress The progress of the container in the range [0..1]
-     * @param velocity The velocity of the container
-     * @param dragging {@code true} if the container is being dragged
-     */
-    public void updateCaret(float containerProgress, float velocity, boolean dragging) {
-        // If we're in portrait and the shift is not 0 or 1, adjust the caret based on velocity
-        if (getThreshold() < containerProgress && containerProgress < 1 - getThreshold() &&
-                !mLauncher.useVerticalBarLayout()) {
-            mThresholdCrossed = true;
-
-            // How fast are we moving as a percentage of the peak velocity?
-            final float pctOfFlingVelocity = Math.max(-1, Math.min(velocity / PEAK_VELOCITY, 1));
-
-            mCaretDrawable.setCaretProgress(pctOfFlingVelocity);
-
-            // Set the last caret progress to this progress to prevent animator cancellation
-            mLastCaretProgress = pctOfFlingVelocity;
-            // Animate to neutral. This is necessary so the caret doesn't "freeze" when the
-            // container stops moving (e.g., during a drag or when the threshold is reached).
-            animateCaretToProgress(CaretDrawable.PROGRESS_CARET_NEUTRAL);
-        } else if (!dragging) {
-            // Otherwise, if we're not dragging, match the caret to the appropriate state
-            if (containerProgress <= getThreshold()) { // All Apps is up
-                animateCaretToProgress(CaretDrawable.PROGRESS_CARET_POINTING_DOWN);
-            } else if (containerProgress >= 1 - getThreshold()) { // All Apps is down
-                animateCaretToProgress(CaretDrawable.PROGRESS_CARET_POINTING_UP);
-            }
-        }
-    }
-
-    private void animateCaretToProgress(float progress) {
-        // If the new progress is the same as the last progress we animated to, terminate early
-        if (Float.compare(mLastCaretProgress, progress) == 0) {
-            return;
-        }
-
-        if (mCaretAnimator.isRunning()) {
-            mCaretAnimator.cancel(); // Stop the animator in its tracks
-        }
-
-        // Update the progress and start the animation
-        mLastCaretProgress = progress;
-        mCaretAnimator.setFloatValues(progress);
-        mCaretAnimator.start();
-    }
-
-    private float getThreshold() {
-        // In landscape, just return the landscape threshold.
-        if (mLauncher.useVerticalBarLayout()) {
-            return CARET_THRESHOLD_LAND;
-        }
-
-        // Before the threshold is crossed, it is reported as zero. This makes the caret immediately
-        // responsive when a drag begins. After the threshold is crossed, we return the constant
-        // value. This means the caret will start its state-based adjustment sooner. That is, we
-        // won't have to wait until the panel is completely settled to begin animation.
-        return mThresholdCrossed ? CARET_THRESHOLD : 0f;
-    }
-
-    public void onDragStart() {
-        mThresholdCrossed = false;
-    }
-}
diff --git a/src/com/android/launcher3/allapps/AllAppsContainerView.java b/src/com/android/launcher3/allapps/AllAppsContainerView.java
index 4de31f4..efd7b97 100644
--- a/src/com/android/launcher3/allapps/AllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsContainerView.java
@@ -18,11 +18,18 @@
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Rect;
+import android.os.Process;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v4.view.PagerAdapter;
+import android.support.v4.view.ViewPager;
 import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
 import android.text.Selection;
 import android.text.SpannableStringBuilder;
 import android.util.AttributeSet;
 import android.view.KeyEvent;
+import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
@@ -38,6 +45,7 @@
 import com.android.launcher3.Insettable;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
 import com.android.launcher3.PromiseAppInfo;
 import com.android.launcher3.R;
 import com.android.launcher3.anim.SpringAnimationHandler;
@@ -46,9 +54,14 @@
 import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.keyboard.FocusedItemDecorator;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
+import com.android.launcher3.util.ComponentKey;
+import com.android.launcher3.util.ComponentKeyMapper;
+import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.util.TransformingTouchDelegate;
+import com.android.launcher3.views.SlidingTabStrip;
 
+import java.util.HashMap;
 import java.util.List;
 import java.util.Set;
 
@@ -62,23 +75,26 @@
     protected final Rect mBasePadding = new Rect();
 
     private final Launcher mLauncher;
-    private final AlphabeticalAppsList mApps;
-    private final AllAppsGridAdapter mAdapter;
-    private final LinearLayoutManager mLayoutManager;
+    private final AdapterHolder[] mAH;
     private final ClickShadowView mTouchFeedbackView;
+    private final ItemInfoMatcher mPersonalMatcher = ItemInfoMatcher.ofUser(Process.myUserHandle());
+    private final ItemInfoMatcher mWorkMatcher = ItemInfoMatcher.not(mPersonalMatcher);
 
-    private AllAppsRecyclerView mAppsRecyclerView;
     private SearchUiManager mSearchUiManager;
     private View mSearchContainer;
+    private InterceptingViewPager mViewPager;
+    private ViewGroup mHeader;
+    private FloatingHeaderHandler mFloatingHeaderHandler;
 
     private SpannableStringBuilder mSearchQueryBuilder = null;
 
     private int mNumAppsPerRow;
     private int mNumPredictedAppsPerRow;
 
-    private SpringAnimationHandler mSpringAnimationHandler;
-
     private TransformingTouchDelegate mTouchDelegate;
+    private boolean mUsingTabs;
+
+    private final HashMap<ComponentKey, AppInfo> mComponentToAppMap = new HashMap<>();
 
     public AllAppsContainerView(Context context) {
         this(context, null);
@@ -92,11 +108,7 @@
         super(context, attrs, defStyleAttr);
 
         mLauncher = Launcher.getLauncher(context);
-        mApps = new AlphabeticalAppsList(context);
-        mAdapter = new AllAppsGridAdapter(mLauncher, mApps, mLauncher, this);
-        mSpringAnimationHandler = mAdapter.getSpringAnimationHandler();
-        mApps.setAdapter(mAdapter);
-        mLayoutManager = mAdapter.getLayoutManager();
+
         mSearchQueryBuilder = new SpannableStringBuilder();
 
         Selection.setSelection(mSearchQueryBuilder, 0);
@@ -106,6 +118,10 @@
         int size = mLauncher.getDeviceProfile().allAppsIconSizePx
                 + mTouchFeedbackView.getExtraSize();
         addView(mTouchFeedbackView, size, size);
+
+        mAH = new AdapterHolder[2];
+        mAH[AdapterHolder.MAIN] = new AdapterHolder();
+        mAH[AdapterHolder.WORK] = new AdapterHolder();
     }
 
     @Override
@@ -115,7 +131,17 @@
         DeviceProfile grid = Launcher.getLauncher(getContext()).getDeviceProfile();
         grid.addLauncherLayoutChangedListener(this);
 
-        mTouchDelegate = new TransformingTouchDelegate(mAppsRecyclerView);
+        applyTouchDelegate();
+    }
+
+    private void applyTouchDelegate() {
+        RecyclerView rv = getActiveRecyclerView();
+        mTouchDelegate = new TransformingTouchDelegate(rv);
+        mTouchDelegate.setBounds(
+                rv.getLeft() - mBasePadding.left,
+                rv.getTop() - mBasePadding.top,
+                rv.getRight() + mBasePadding.right,
+                rv.getBottom() + mBasePadding.bottom);
         setTouchDelegate(mTouchDelegate);
     }
 
@@ -147,59 +173,81 @@
     @Override
     protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
         super.onLayout(changed, left, top, right, bottom);
-        mTouchDelegate.setBounds(
-                mAppsRecyclerView.getLeft() - mBasePadding.left,
-                mAppsRecyclerView.getTop() - mBasePadding.top,
-                mAppsRecyclerView.getRight() + mBasePadding.right,
-                mAppsRecyclerView.getBottom() + mBasePadding.bottom);
+        applyTouchDelegate();
     }
 
     @Override
     public void setPressedIcon(BubbleTextView icon, Bitmap background) {
-        if (icon == null || background == null) {
-            mTouchFeedbackView.setBitmap(null);
-            mTouchFeedbackView.animate().cancel();
-        } else if (mTouchFeedbackView.setBitmap(background)) {
-            View rv = findViewById(R.id.apps_list_view);
-            mTouchFeedbackView.alignWithIconView(icon, (ViewGroup) icon.getParent(), rv);
-            mTouchFeedbackView.animateShadow();
-        }
+        mTouchFeedbackView.setPressedIcon(icon, background);
     }
 
     /**
      * Sets the current set of apps.
      */
     public void setApps(List<AppInfo> apps) {
-        mApps.setApps(apps);
+        boolean hasWorkProfileApp = hasWorkProfileApp(apps);
+        if (mUsingTabs != hasWorkProfileApp) {
+            rebindAdapters(hasWorkProfileApp);
+        }
+        mComponentToAppMap.clear();
+        addOrUpdateApps(apps);
     }
 
     /**
      * Adds or updates existing apps in the list
      */
     public void addOrUpdateApps(List<AppInfo> apps) {
-        mApps.addOrUpdateApps(apps);
-        mSearchUiManager.refreshSearchResult();
-    }
-
-    public void updatePromiseAppProgress(PromiseAppInfo app) {
-        int childCount = mAppsRecyclerView.getChildCount();
-        for (int i = 0; i < childCount; i++) {
-            View child = mAppsRecyclerView.getChildAt(i);
-            if (child instanceof BubbleTextView && child.getTag() == app) {
-                BubbleTextView bubbleTextView = (BubbleTextView) child;
-                bubbleTextView.applyProgressLevel(app.level);
-            }
+        for (AppInfo app : apps) {
+            mComponentToAppMap.put(app.toComponentKey(), app);
         }
+        onAppsUpdated();
+        mSearchUiManager.refreshSearchResult();
     }
 
     /**
      * Removes some apps from the list.
      */
     public void removeApps(List<AppInfo> apps) {
-        mApps.removeApps(apps);
+        for (AppInfo app : apps) {
+            mComponentToAppMap.remove(app.toComponentKey());
+        }
+        onAppsUpdated();
         mSearchUiManager.refreshSearchResult();
     }
 
+    private void onAppsUpdated() {
+        for (int i = 0; i < getNumOfAdapters(); i++) {
+            mAH[i].appsList.onAppsUpdated();
+        }
+    }
+
+    private int getNumOfAdapters() {
+        return mUsingTabs ? mAH.length : 1;
+    }
+
+    public void updatePromiseAppProgress(PromiseAppInfo app) {
+        for (int i = 0; i < mAH.length; i++) {
+            updatePromiseAppProgress(app, mAH[i].recyclerView);
+        }
+        if (mFloatingHeaderHandler != null) {
+            updatePromiseAppProgress(app, mFloatingHeaderHandler.getContentView());
+        }
+    }
+
+    private void updatePromiseAppProgress(PromiseAppInfo app, ViewGroup parent) {
+        if (parent == null) {
+            return;
+        }
+        int childCount = parent.getChildCount();
+        for (int i = 0; i < childCount; i++) {
+            View child = parent.getChildAt(i);
+            if (child instanceof BubbleTextView && child.getTag() == app) {
+                BubbleTextView bubbleTextView = (BubbleTextView) child;
+                bubbleTextView.applyProgressLevel(app.level);
+            }
+        }
+    }
+
     /**
      * Returns whether the view itself will handle the touch event or not.
      */
@@ -209,15 +257,31 @@
         if (mLauncher.getDragLayer().isEventOverView(mSearchContainer, ev)) {
             return true;
         }
-        return mAppsRecyclerView.shouldContainerScroll(ev, mLauncher.getDragLayer());
+        if (mUsingTabs && mLauncher.getDragLayer().isEventOverView(mHeader, ev)) {
+            return true;
+        }
+        AllAppsRecyclerView rv = getActiveRecyclerView();
+        return rv == null || rv.shouldContainerScroll(ev, mLauncher.getDragLayer());
+    }
+
+    public AllAppsRecyclerView getActiveRecyclerView() {
+        if (!mUsingTabs || mViewPager.getCurrentItem() == 0) {
+            return mAH[AdapterHolder.MAIN].recyclerView;
+        } else {
+            return mAH[AdapterHolder.WORK].recyclerView;
+        }
     }
 
     /**
      * Resets the state of AllApps.
      */
     public void reset() {
+        for (int i = 0; i < mAH.length; i++) {
+            if (mAH[i].recyclerView != null) {
+                mAH[i].recyclerView.scrollToTop();
+            }
+        }
         // Reset the search bar and base recycler view after transitioning home
-        mAppsRecyclerView.scrollToTop();
         mSearchUiManager.reset();
     }
 
@@ -230,33 +294,18 @@
         setOnFocusChangeListener(new View.OnFocusChangeListener() {
             @Override
             public void onFocusChange(View v, boolean hasFocus) {
-                if (hasFocus) {
-                    mAppsRecyclerView.requestFocus();
+                if (hasFocus && getActiveRecyclerView() != null) {
+                    getActiveRecyclerView().requestFocus();
                 }
             }
         });
 
-        // Load the all apps recycler view
-        mAppsRecyclerView = findViewById(R.id.apps_list_view);
-        mAppsRecyclerView.setApps(mApps);
-        mAppsRecyclerView.setLayoutManager(mLayoutManager);
-        mAppsRecyclerView.setAdapter(mAdapter);
-        mAppsRecyclerView.setHasFixedSize(true);
-        // No animations will occur when changes occur to the items in this RecyclerView.
-        mAppsRecyclerView.setItemAnimator(null);
-        if (FeatureFlags.LAUNCHER3_PHYSICS) {
-            mAppsRecyclerView.setSpringAnimationHandler(mSpringAnimationHandler);
-        }
+        mHeader = findViewById(R.id.all_apps_header);
+        rebindAdapters(mUsingTabs);
 
         mSearchContainer = findViewById(R.id.search_container_all_apps);
         mSearchUiManager = (SearchUiManager) mSearchContainer;
-        mSearchUiManager.initialize(mApps, mAppsRecyclerView);
-
-
-        FocusedItemDecorator focusedItemDecorator = new FocusedItemDecorator(mAppsRecyclerView);
-        mAppsRecyclerView.addItemDecoration(focusedItemDecorator);
-        mAppsRecyclerView.preMeasureViews(mAdapter);
-        mAdapter.setIconFocusListener(focusedItemDecorator.getFocusListener());
+        mSearchUiManager.initialize(this);
 
         onLauncherLayoutChanged();
     }
@@ -275,10 +324,9 @@
                 mNumPredictedAppsPerRow != grid.inv.numColumns) {
             mNumAppsPerRow = grid.inv.numColumns;
             mNumPredictedAppsPerRow = grid.inv.numColumns;
-
-            mAppsRecyclerView.setNumAppsPerRow(grid, mNumAppsPerRow);
-            mAdapter.setNumAppsPerRow(mNumAppsPerRow);
-            mApps.setNumAppsPerRow(mNumAppsPerRow, mNumPredictedAppsPerRow);
+            for (int i = 0; i < mAH.length; i++) {
+                mAH[i].applyNumsPerRow();
+            }
         }
         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
     }
@@ -292,7 +340,7 @@
     @Override
     public boolean onLongClick(final View v) {
         // When we have exited all apps or are in transition, disregard long clicks
-        if (!mLauncher.isAppsViewVisible() ||
+        if (!mLauncher.isInState(LauncherState.ALL_APPS) ||
                 mLauncher.getWorkspace().isSwitchingState()) return false;
         // Return if global dragging is not enabled or we are already dragging
         if (!mLauncher.isDraggingEnabled()) return false;
@@ -331,10 +379,10 @@
     @Override
     public void setInsets(Rect insets) {
         DeviceProfile grid = mLauncher.getDeviceProfile();
-        mAppsRecyclerView.setPadding(
-                mAppsRecyclerView.getPaddingLeft(), mAppsRecyclerView.getPaddingTop(),
-                mAppsRecyclerView.getPaddingRight(), insets.bottom);
-
+        for (int i = 0; i < mAH.length; i++) {
+            mAH[i].padding.bottom = insets.bottom;
+            mAH[i].applyPadding();
+        }
         if (grid.isVerticalBarLayout()) {
             ViewGroup.MarginLayoutParams mlp = (MarginLayoutParams) getLayoutParams();
             mlp.leftMargin = insets.left;
@@ -351,20 +399,303 @@
 
     public void updateIconBadges(Set<PackageUserKey> updatedBadges) {
         final PackageUserKey packageUserKey = new PackageUserKey(null, null);
-        final int n = mAppsRecyclerView.getChildCount();
-        for (int i = 0; i < n; i++) {
-            View child = mAppsRecyclerView.getChildAt(i);
-            if (!(child instanceof BubbleTextView) || !(child.getTag() instanceof ItemInfo)) {
-                continue;
-            }
-            ItemInfo info = (ItemInfo) child.getTag();
-            if (packageUserKey.updateFromItemInfo(info) && updatedBadges.contains(packageUserKey)) {
-                ((BubbleTextView) child).applyBadgeState(info, true /* animate */);
+        for (int j = 0; j < mAH.length; j++) {
+            if (mAH[j].recyclerView != null) {
+                final int n = mAH[j].recyclerView.getChildCount();
+                for (int i = 0; i < n; i++) {
+                    View child = mAH[j].recyclerView.getChildAt(i);
+                    if (!(child instanceof BubbleTextView) || !(child.getTag() instanceof ItemInfo)) {
+                        continue;
+                    }
+                    ItemInfo info = (ItemInfo) child.getTag();
+                    if (packageUserKey.updateFromItemInfo(info) && updatedBadges.contains(packageUserKey)) {
+                        ((BubbleTextView) child).applyBadgeState(info, true /* animate */);
+                    }
+                }
             }
         }
     }
 
     public SpringAnimationHandler getSpringAnimationHandler() {
-        return mSpringAnimationHandler;
+        return mUsingTabs ? null : mAH[AdapterHolder.MAIN].animationHandler;
     }
+
+    private void rebindAdapters(boolean showTabs) {
+        if (showTabs != mUsingTabs) {
+            replaceRVContainer(showTabs);
+        }
+        mUsingTabs = showTabs;
+
+        if (mUsingTabs) {
+            mAH[AdapterHolder.MAIN].setup(mViewPager.getChildAt(0), mPersonalMatcher);
+            mAH[AdapterHolder.WORK].setup(mViewPager.getChildAt(1), mWorkMatcher);
+            setupWorkProfileTabs();
+            setupHeader();
+            mHeader.setVisibility(View.VISIBLE);
+        } else {
+            mHeader.setVisibility(View.GONE);
+            mAH[AdapterHolder.MAIN].setup(findViewById(R.id.apps_list_view), null);
+        }
+
+        applyTouchDelegate();
+    }
+
+    private boolean hasWorkProfileApp(List<AppInfo> apps) {
+        if (FeatureFlags.ALL_APPS_TABS_ENABLED) {
+            for (AppInfo app : apps) {
+                if (mWorkMatcher.matches(app, null)) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    private void replaceRVContainer(boolean showTabs) {
+        for (int i = 0; i < mAH.length; i++) {
+            if (mAH[i].recyclerView != null) {
+                mAH[i].recyclerView.setLayoutManager(null);
+            }
+        }
+        View oldView = getRecyclerViewContainer();
+        int index = indexOfChild(oldView);
+        removeView(oldView);
+        int layout = showTabs ? R.layout.all_apps_tabs : R.layout.all_apps_rv_layout;
+        View newView = LayoutInflater.from(getContext()).inflate(layout, this, false);
+        addView(newView, index);
+        mViewPager = showTabs ? (InterceptingViewPager) newView : null;
+    }
+
+    public View getRecyclerViewContainer() {
+        return mViewPager != null ? mViewPager : findViewById(R.id.apps_list_view);
+    }
+
+    private void setupWorkProfileTabs() {
+        final SlidingTabStrip tabs = findViewById(R.id.tabs);
+        mViewPager.setAdapter(new TabsPagerAdapter());
+        mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
+
+            boolean mVisible = true;
+
+            @Override
+            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
+                tabs.updateIndicatorPosition(position, positionOffset);
+                if (positionOffset == 0 && !mVisible || positionOffset > 0 && mVisible) {
+                    mVisible = positionOffset == 0;
+                    for (int i = 0; i < mAH.length; i++) {
+                        if (mAH[i].recyclerView != null) {
+                            mAH[i].recyclerView.getScrollbar().setAlpha(mVisible ? 1 : 0);
+                        }
+                    }
+                }
+            }
+
+            @Override
+            public void onPageSelected(int pos) {
+                tabs.updateTabTextColor(pos);
+                mFloatingHeaderHandler.setMainActive(pos == 0);
+                applyTouchDelegate();
+                if (mAH[pos].recyclerView != null) {
+                    mAH[pos].recyclerView.bindFastScrollbar();
+                }
+            }
+
+            @Override
+            public void onPageScrollStateChanged(int state) {
+            }
+        });
+
+        findViewById(R.id.tab_personal)
+                .setOnClickListener((View view) -> mViewPager.setCurrentItem(0));
+        findViewById(R.id.tab_work)
+                .setOnClickListener((View view) -> mViewPager.setCurrentItem(1));
+    }
+
+    public void setPredictedApps(List<ComponentKeyMapper<AppInfo>> apps) {
+        if (mUsingTabs) {
+            mFloatingHeaderHandler.getContentView().setPredictedApps(apps);
+        }
+        mAH[AdapterHolder.MAIN].appsList.setPredictedApps(apps);
+    }
+
+    public AppInfo findApp(ComponentKeyMapper<AppInfo> mapper) {
+        return mapper.getItem(mComponentToAppMap);
+    }
+
+    public AlphabeticalAppsList getApps() {
+        return mAH[AdapterHolder.MAIN].appsList;
+    }
+
+    public boolean isUsingTabs() {
+        return mUsingTabs;
+    }
+
+    public FloatingHeaderHandler getFloatingHeaderHandler() {
+        return mFloatingHeaderHandler;
+    }
+
+    private void setupHeader() {
+        int contentHeight = mLauncher.getDeviceProfile().allAppsCellHeightPx;
+        RecyclerView mainRV = mAH[AdapterHolder.MAIN].recyclerView;
+        RecyclerView workRV = mAH[AdapterHolder.WORK] != null
+                ? mAH[AdapterHolder.WORK].recyclerView : null;
+        mFloatingHeaderHandler = new FloatingHeaderHandler(mHeader, mainRV, workRV, contentHeight);
+        mFloatingHeaderHandler.getContentView().setNumAppsPerRow(mNumPredictedAppsPerRow);
+        mFloatingHeaderHandler.getContentView().setComponentToAppMap(mComponentToAppMap);
+        for (int i = 0; i < mAH.length; i++) {
+            mAH[i].paddingTopForTabs = contentHeight;
+            mAH[i].applyPadding();
+        }
+    }
+
+    public void setLastSearchQuery(String query) {
+        for (int i = 0; i < mAH.length; i++) {
+            mAH[i].adapter.setLastSearchQuery(query);
+        }
+    }
+
+    public void onSearchResultsChanged() {
+        for (int i = 0; i < mAH.length; i++) {
+            mAH[i].recyclerView.onSearchResultsChanged();
+        }
+    }
+
+    public void setRecyclerViewPaddingTop(int top) {
+        for (int i = 0; i < mAH.length; i++) {
+            mAH[i].padding.top = top;
+            mAH[i].applyPadding();
+        }
+    }
+
+    public void setRecyclerViewSidePadding(int left, int right) {
+        for (int i = 0; i < mAH.length; i++) {
+            mAH[i].padding.left = left;
+            mAH[i].padding.right = right;
+            mAH[i].applyPadding();
+        }
+    }
+
+    public void setRecyclerViewVerticalFadingEdgeEnabled(boolean enabled) {
+        for (int i = 0; i < mAH.length; i++) {
+            mAH[i].applyVerticalFadingEdgeEnabled(enabled);
+        }
+    }
+
+    public void addElevationController(RecyclerView.OnScrollListener scrollListener) {
+        if (!mUsingTabs) {
+            mAH[AdapterHolder.MAIN].recyclerView.addOnScrollListener(scrollListener);
+        }
+    }
+
+    public List<AppInfo> getPredictedApps() {
+        if (mUsingTabs) {
+            return mFloatingHeaderHandler.getContentView().getPredictedApps();
+        } else {
+            return mAH[AdapterHolder.MAIN].appsList.getPredictedApps();
+        }
+    }
+
+    public class AdapterHolder {
+        public static final int MAIN = 0;
+        public static final int WORK = 1;
+
+        final AllAppsGridAdapter adapter;
+        final LinearLayoutManager layoutManager;
+        final SpringAnimationHandler animationHandler;
+        final AlphabeticalAppsList appsList;
+        final Rect padding = new Rect();
+        int paddingTopForTabs;
+        AllAppsRecyclerView recyclerView;
+        boolean verticalFadingEdge;
+
+        AdapterHolder() {
+            appsList = new AlphabeticalAppsList(mLauncher, mComponentToAppMap);
+            adapter = new AllAppsGridAdapter(mLauncher, appsList, mLauncher,
+                    AllAppsContainerView.this, true);
+            appsList.setAdapter(adapter);
+            animationHandler = adapter.getSpringAnimationHandler();
+            layoutManager = adapter.getLayoutManager();
+        }
+
+        void setup(@NonNull View rv, @Nullable ItemInfoMatcher matcher) {
+            appsList.updateItemFilter(matcher);
+            recyclerView = (AllAppsRecyclerView) rv;
+            recyclerView.setApps(appsList, mUsingTabs);
+            recyclerView.setLayoutManager(layoutManager);
+            recyclerView.setAdapter(adapter);
+            recyclerView.setHasFixedSize(true);
+            // No animations will occur when changes occur to the items in this RecyclerView.
+            recyclerView.setItemAnimator(null);
+            if (FeatureFlags.LAUNCHER3_PHYSICS && animationHandler != null) {
+                recyclerView.setSpringAnimationHandler(animationHandler);
+            }
+            FocusedItemDecorator focusedItemDecorator = new FocusedItemDecorator(recyclerView);
+            recyclerView.addItemDecoration(focusedItemDecorator);
+            recyclerView.preMeasureViews(adapter);
+            adapter.setIconFocusListener(focusedItemDecorator.getFocusListener());
+            applyVerticalFadingEdgeEnabled(verticalFadingEdge);
+            applyPadding();
+            applyNumsPerRow();
+        }
+
+        void applyPadding() {
+            if (recyclerView != null) {
+                int paddingTop = mUsingTabs ? paddingTopForTabs : padding.top;
+                recyclerView.setPadding(padding.left, paddingTop, padding.right, padding.bottom);
+            }
+        }
+
+        void applyNumsPerRow() {
+            if (mNumAppsPerRow > 0) {
+                if (recyclerView != null) {
+                    recyclerView.setNumAppsPerRow(mLauncher.getDeviceProfile(), mNumAppsPerRow);
+                }
+                adapter.setNumAppsPerRow(mNumAppsPerRow);
+                appsList.setNumAppsPerRow(mNumAppsPerRow, mNumPredictedAppsPerRow);
+                if (mUsingTabs && mFloatingHeaderHandler != null) {
+                    mFloatingHeaderHandler.getContentView()
+                            .setNumAppsPerRow(mNumPredictedAppsPerRow);
+                }
+            }
+        }
+
+        public void applyVerticalFadingEdgeEnabled(boolean enabled) {
+            verticalFadingEdge = enabled;
+            mAH[AdapterHolder.MAIN].recyclerView.setVerticalFadingEdgeEnabled(!mUsingTabs
+                    && verticalFadingEdge);
+        }
+    }
+
+    private class TabsPagerAdapter extends PagerAdapter {
+        @Override
+        public int getCount() {
+            return 2;
+        }
+
+        @Override
+        public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
+            return view == object;
+        }
+
+        @NonNull
+        @Override
+        public Object instantiateItem(@NonNull ViewGroup container, int position) {
+            if (position == 0) {
+                return mAH[AdapterHolder.MAIN].recyclerView;
+            } else {
+                return mAH[AdapterHolder.WORK].recyclerView;
+            }
+        }
+
+        @Nullable
+        @Override
+        public CharSequence getPageTitle(int position) {
+            if (position == 0) {
+                return getResources().getString(R.string.all_apps_personal_tab);
+            } else {
+                return getResources().getString(R.string.all_apps_work_tab);
+            }
+        }
+    }
+
 }
diff --git a/src/com/android/launcher3/allapps/AllAppsGridAdapter.java b/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
index f7ce8c1..ac8d367 100644
--- a/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
+++ b/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
@@ -206,10 +206,10 @@
     // The intent to send off to the market app, updated each time the search query changes.
     private Intent mMarketSearchIntent;
 
-    private SpringAnimationHandler<ViewHolder> mSpringAnimationHandler;
+    private final SpringAnimationHandler<ViewHolder> mSpringAnimationHandler;
 
     public AllAppsGridAdapter(Launcher launcher, AlphabeticalAppsList apps, View.OnClickListener
-            iconClickListener, View.OnLongClickListener iconLongClickListener) {
+            iconClickListener, View.OnLongClickListener iconLongClickListener, boolean springAnim) {
         Resources res = launcher.getResources();
         mLauncher = launcher;
         mApps = apps;
@@ -220,9 +220,11 @@
         mLayoutInflater = LayoutInflater.from(launcher);
         mIconClickListener = iconClickListener;
         mIconLongClickListener = iconLongClickListener;
-        if (FeatureFlags.LAUNCHER3_PHYSICS) {
+        if (FeatureFlags.LAUNCHER3_PHYSICS && springAnim) {
             mSpringAnimationHandler = new SpringAnimationHandler<>(
                     SpringAnimationHandler.Y_DIRECTION, new AllAppsSpringAnimationFactory());
+        } else {
+            mSpringAnimationHandler = null;
         }
     }
 
@@ -336,6 +338,7 @@
             case VIEW_TYPE_PREDICTION_ICON:
                 AppInfo info = mApps.getAdapterItems().get(position).appInfo;
                 BubbleTextView icon = (BubbleTextView) holder.itemView;
+                icon.reset();
                 icon.applyFromApplicationInfo(info);
                 break;
             case VIEW_TYPE_DISCOVERY_ITEM:
@@ -376,7 +379,7 @@
     @Override
     public void onViewAttachedToWindow(ViewHolder holder) {
         int type = holder.getItemViewType();
-        if (FeatureFlags.LAUNCHER3_PHYSICS && isViewType(type, VIEW_TYPE_MASK_HAS_SPRINGS)) {
+        if (mSpringAnimationHandler != null && isViewType(type, VIEW_TYPE_MASK_HAS_SPRINGS)) {
             mSpringAnimationHandler.add(holder.itemView, holder);
         }
     }
@@ -384,7 +387,7 @@
     @Override
     public void onViewDetachedFromWindow(ViewHolder holder) {
         int type = holder.getItemViewType();
-        if (FeatureFlags.LAUNCHER3_PHYSICS && isViewType(type, VIEW_TYPE_MASK_HAS_SPRINGS)) {
+        if (mSpringAnimationHandler != null && isViewType(type, VIEW_TYPE_MASK_HAS_SPRINGS)) {
             mSpringAnimationHandler.remove(holder.itemView);
         }
     }
diff --git a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
index 494cd5a..09357f7 100644
--- a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
@@ -31,6 +31,7 @@
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.ItemInfo;
+import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
 import com.android.launcher3.anim.SpringAnimationHandler;
 import com.android.launcher3.config.FeatureFlags;
@@ -40,6 +41,7 @@
 import com.android.launcher3.touch.SwipeDetector;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
+import com.android.launcher3.views.RecyclerViewFastScroller;
 
 import java.util.List;
 
@@ -51,6 +53,7 @@
     private AlphabeticalAppsList mApps;
     private AllAppsFastScrollHelper mFastScrollHelper;
     private int mNumAppsPerRow;
+    private int mUserProfileTabContentHeight;
 
     // The specific view heights that we use to calculate scroll
     private SparseIntArray mViewHeights = new SparseIntArray();
@@ -63,7 +66,6 @@
     private SpringAnimationHandler mSpringAnimationHandler;
     private OverScrollHelper mOverScrollHelper;
     private SwipeDetector mPullDetector;
-
     private float mContentTranslationY = 0;
     public static final Property<AllAppsRecyclerView, Float> CONTENT_TRANS_Y =
             new Property<AllAppsRecyclerView, Float>(Float.class, "appsRecyclerViewContentTransY") {
@@ -122,9 +124,11 @@
     /**
      * Sets the list of apps in this view, used to determine the fastscroll position.
      */
-    public void setApps(AlphabeticalAppsList apps) {
+    public void setApps(AlphabeticalAppsList apps, boolean usingTabs) {
         mApps = apps;
         mFastScrollHelper = new AllAppsFastScrollHelper(this, apps);
+        mUserProfileTabContentHeight = usingTabs
+                ? Launcher.getLauncher(getContext()).getDeviceProfile().allAppsCellHeightPx : 0;;
     }
 
     public AlphabeticalAppsList getApps() {
@@ -136,7 +140,6 @@
      */
     public void setNumAppsPerRow(DeviceProfile grid, int numAppsPerRow) {
         mNumAppsPerRow = numAppsPerRow;
-
         RecyclerView.RecycledViewPool pool = getRecycledViewPool();
         int approxRows = (int) Math.ceil(grid.availableHeightPx / grid.allAppsIconSizePx);
         pool.setMaxRecycledViews(AllAppsGridAdapter.VIEW_TYPE_EMPTY_SEARCH, 1);
@@ -169,7 +172,6 @@
                 AllAppsGridAdapter.VIEW_TYPE_SEARCH_MARKET);
         putSameHeightFor(adapter, widthMeasureSpec, heightMeasureSpec,
                 AllAppsGridAdapter.VIEW_TYPE_EMPTY_SEARCH);
-
         if (FeatureFlags.DISCOVERY_ENABLED) {
             putSameHeightFor(adapter, widthMeasureSpec, heightMeasureSpec,
                     AllAppsGridAdapter.VIEW_TYPE_APPS_LOADING_DIVIDER);
@@ -485,8 +487,23 @@
      */
     @Override
     protected int getAvailableScrollHeight() {
-        return getPaddingTop() + getCurrentScrollY(mApps.getAdapterItems().size(), 0)
-                - getHeight() + getPaddingBottom();
+        return getPaddingTop() + getCurrentScrollY(getAdapter().getItemCount(), 0)
+                - getHeight() + getPaddingBottom() + mUserProfileTabContentHeight;
+    }
+
+    public int getScrollBarTop() {
+        return super.getScrollBarTop() + mUserProfileTabContentHeight;
+    }
+
+    /**
+     * Returns the height of the fast scroll bar
+     */
+    public int getScrollbarTrackHeight() {
+        return super.getScrollbarTrackHeight() + mUserProfileTabContentHeight;
+    }
+
+    public RecyclerViewFastScroller getScrollbar() {
+        return mScrollbar;
     }
 
     /**
@@ -587,7 +604,7 @@
         private void reset(boolean shouldSpring) {
             float y = getContentTranslationY();
             if (Float.compare(y, 0) != 0) {
-                if (FeatureFlags.LAUNCHER3_PHYSICS && shouldSpring) {
+                if (mSpringAnimationHandler != null && shouldSpring) {
                     // We calculate our own velocity to give the springs the desired effect.
                     float velocity = y / getDampedOverScroll(getHeight()) * MAX_RELEASE_VELOCITY;
                     // We want to negate the velocity because we are moving to 0 from -1 due to the
@@ -614,4 +631,5 @@
             return OverScroll.dampedScroll(y, getHeight());
         }
     }
+
 }
diff --git a/src/com/android/launcher3/allapps/AllAppsTransitionController.java b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
index 5642b4c..eb26704 100644
--- a/src/com/android/launcher3/allapps/AllAppsTransitionController.java
+++ b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
@@ -1,36 +1,31 @@
 package com.android.launcher3.allapps;
 
+import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
+import static com.android.launcher3.anim.Interpolators.LINEAR;
+
 import android.animation.Animator;
 import android.animation.AnimatorInflater;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
-import android.animation.ArgbEvaluator;
 import android.animation.ObjectAnimator;
-import android.support.animation.SpringAnimation;
-import android.support.v4.view.animation.FastOutSlowInInterpolator;
-import android.view.MotionEvent;
+import android.util.Property;
 import android.view.View;
-import android.view.animation.AccelerateInterpolator;
-import android.view.animation.Animation;
 import android.view.animation.Interpolator;
 
-import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.Hotseat;
 import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherAnimUtils;
-import com.android.launcher3.LauncherStateTransitionAnimation.AnimationConfig;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.LauncherStateManager;
+import com.android.launcher3.LauncherStateManager.AnimationConfig;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.Workspace;
-import com.android.launcher3.anim.SpringAnimationHandler;
-import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.anim.AnimationLayerSet;
+import com.android.launcher3.anim.AnimationSuccessListener;
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.graphics.GradientView;
-import com.android.launcher3.touch.SwipeDetector;
-import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
-import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.launcher3.util.SystemUiController;
 import com.android.launcher3.util.Themes;
-import com.android.launcher3.util.TouchController;
 
 /**
  * Handles AllApps view transition.
@@ -42,29 +37,33 @@
  * If release velocity < THRES1, snap according to either top or bottom depending on whether it's
  * closer to top or closer to the page indicator.
  */
-public class AllAppsTransitionController implements TouchController, SwipeDetector.Listener,
-         SearchUiManager.OnScrollRangeChangeListener {
+public class AllAppsTransitionController
+        implements SearchUiManager.OnScrollRangeChangeListener, LauncherStateManager.StateHandler {
 
-    private final Interpolator mWorkspaceAccelnterpolator = new AccelerateInterpolator(2f);
-    private final Interpolator mHotseatAccelInterpolator = new AccelerateInterpolator(1.5f);
-    private final Interpolator mFastOutSlowInInterpolator = new FastOutSlowInInterpolator();
-    private final SwipeDetector.ScrollInterpolator mScrollInterpolator
-            = new SwipeDetector.ScrollInterpolator();
+    private static final Property<AllAppsTransitionController, Float> PROGRESS =
+            new Property<AllAppsTransitionController, Float>(Float.class, "progress") {
+
+        @Override
+        public Float get(AllAppsTransitionController controller) {
+            return controller.mProgress;
+        }
+
+        @Override
+        public void set(AllAppsTransitionController controller, Float progress) {
+            controller.setProgress(progress);
+        }
+    };
+
+    private final Interpolator mWorkspaceAccelnterpolator = Interpolators.ACCEL_2;
+    private final Interpolator mHotseatAccelInterpolator = Interpolators.ACCEL_1_5;
 
     private static final float PARALLAX_COEFFICIENT = .125f;
-    private static final int SINGLE_FRAME_MS = 16;
 
     private AllAppsContainerView mAppsView;
     private Workspace mWorkspace;
     private Hotseat mHotseat;
 
-    private AllAppsCaretController mCaretController;
-
-    private float mStatusBarHeight;
-
     private final Launcher mLauncher;
-    private final SwipeDetector mDetector;
-    private final ArgbEvaluator mEvaluator;
     private final boolean mIsDarkTheme;
 
     // Animation in this class is controlled by a single variable {@link mProgress}.
@@ -73,193 +72,31 @@
 
     // When {@link mProgress} is 0, all apps container is pulled up.
     // When {@link mProgress} is 1, all apps container is pulled down.
-    private float mShiftStart;      // [0, mShiftRange]
     private float mShiftRange;      // changes depending on the orientation
     private float mProgress;        // [0, 1], mShiftRange * mProgress = shiftCurrent
 
-    // Velocity of the container. Unit is in px/ms.
-    private float mContainerVelocity;
-
     private static final float DEFAULT_SHIFT_RANGE = 10;
 
-    private static final float RECATCH_REJECTION_FRACTION = .0875f;
-
-    private long mAnimationDuration;
-
-    private AnimatorSet mCurrentAnimation;
-    private boolean mNoIntercept;
-    private boolean mTouchEventStartedOnHotseat;
-
-    // Used in discovery bounce animation to provide the transition without workspace changing.
     private boolean mIsTranslateWithoutWorkspace = false;
     private Animator mDiscoBounceAnimation;
     private GradientView mGradientView;
 
-    private SpringAnimation mSearchSpring;
-    private SpringAnimationHandler mSpringAnimationHandler;
-
     public AllAppsTransitionController(Launcher l) {
         mLauncher = l;
-        mDetector = new SwipeDetector(l, this, SwipeDetector.VERTICAL);
         mShiftRange = DEFAULT_SHIFT_RANGE;
         mProgress = 1f;
 
-        mEvaluator = new ArgbEvaluator();
         mIsDarkTheme = Themes.getAttrBoolean(mLauncher, R.attr.isMainColorDark);
     }
 
-    @Override
-    public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
-        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
-            mNoIntercept = false;
-            mTouchEventStartedOnHotseat = mLauncher.getDragLayer().isEventOverHotseat(ev);
-            if (!mLauncher.isAllAppsVisible() && mLauncher.getWorkspace().workspaceInModalState()) {
-                mNoIntercept = true;
-            } else if (mLauncher.isAllAppsVisible() &&
-                    !mAppsView.shouldContainerScroll(ev)) {
-                mNoIntercept = true;
-            } else if (AbstractFloatingView.getTopOpenView(mLauncher) != null) {
-                mNoIntercept = true;
-            } else {
-                // Now figure out which direction scroll events the controller will start
-                // calling the callbacks.
-                int directionsToDetectScroll = 0;
-                boolean ignoreSlopWhenSettling = false;
-
-                if (mDetector.isIdleState()) {
-                    if (mLauncher.isAllAppsVisible()) {
-                        directionsToDetectScroll |= SwipeDetector.DIRECTION_NEGATIVE;
-                    } else {
-                        directionsToDetectScroll |= SwipeDetector.DIRECTION_POSITIVE;
-                    }
-                } else {
-                    if (isInDisallowRecatchBottomZone()) {
-                        directionsToDetectScroll |= SwipeDetector.DIRECTION_POSITIVE;
-                    } else if (isInDisallowRecatchTopZone()) {
-                        directionsToDetectScroll |= SwipeDetector.DIRECTION_NEGATIVE;
-                    } else {
-                        directionsToDetectScroll |= SwipeDetector.DIRECTION_BOTH;
-                        ignoreSlopWhenSettling = true;
-                    }
-                }
-                mDetector.setDetectableScrollConditions(directionsToDetectScroll,
-                        ignoreSlopWhenSettling);
-            }
-        }
-
-        if (mNoIntercept) {
-            return false;
-        }
-        mDetector.onTouchEvent(ev);
-        if (mDetector.isSettlingState() && (isInDisallowRecatchBottomZone() || isInDisallowRecatchTopZone())) {
-            return false;
-        }
-        return mDetector.isDraggingOrSettling();
+    public float getShiftRange() {
+        return mShiftRange;
     }
 
-    @Override
-    public boolean onControllerTouchEvent(MotionEvent ev) {
-        if (hasSpringAnimationHandler()) {
-            mSpringAnimationHandler.addMovement(ev);
-        }
-        return mDetector.onTouchEvent(ev);
-    }
-
-    private boolean isInDisallowRecatchTopZone() {
-        return mProgress < RECATCH_REJECTION_FRACTION;
-    }
-
-    private boolean isInDisallowRecatchBottomZone() {
-        return mProgress > 1 - RECATCH_REJECTION_FRACTION;
-    }
-
-    @Override
-    public void onDragStart(boolean start) {
-        mCaretController.onDragStart();
-        cancelAnimation();
-        mCurrentAnimation = LauncherAnimUtils.createAnimatorSet();
-        mShiftStart = mAppsView.getTranslationY();
-        preparePull(start);
-        if (hasSpringAnimationHandler()) {
-            mSpringAnimationHandler.skipToEnd();
-        }
-    }
-
-    @Override
-    public boolean onDrag(float displacement, float velocity) {
-        if (mAppsView == null) {
-            return false;   // early termination.
-        }
-
-        mContainerVelocity = velocity;
-
-        float shift = Math.min(Math.max(0, mShiftStart + displacement), mShiftRange);
-        setProgress(shift / mShiftRange);
-
-        return true;
-    }
-
-    @Override
-    public void onDragEnd(float velocity, boolean fling) {
-        if (mAppsView == null) {
-            return; // early termination.
-        }
-
-        final int containerType = mTouchEventStartedOnHotseat
-                ? ContainerType.HOTSEAT : ContainerType.WORKSPACE;
-
-        if (fling) {
-            if (velocity < 0) {
-                calculateDuration(velocity, mAppsView.getTranslationY());
-
-                if (!mLauncher.isAllAppsVisible()) {
-                    mLauncher.getUserEventDispatcher().logActionOnContainer(
-                            Action.Touch.FLING,
-                            Action.Direction.UP,
-                            containerType);
-                }
-                mLauncher.showAppsView(true /* animated */);
-                if (hasSpringAnimationHandler()) {
-                    mSpringAnimationHandler.add(mSearchSpring, true /* setDefaultValues */);
-                    // The icons are moving upwards, so we go to 0 from 1. (y-axis 1 is below 0.)
-                    mSpringAnimationHandler.animateToFinalPosition(0 /* pos */, 1 /* startValue */);
-                }
-            } else {
-                calculateDuration(velocity, Math.abs(mShiftRange - mAppsView.getTranslationY()));
-                mLauncher.showWorkspace(true);
-            }
-            // snap to top or bottom using the release velocity
-        } else {
-            if (mAppsView.getTranslationY() > mShiftRange / 2) {
-                calculateDuration(velocity, Math.abs(mShiftRange - mAppsView.getTranslationY()));
-                mLauncher.showWorkspace(true);
-            } else {
-                calculateDuration(velocity, Math.abs(mAppsView.getTranslationY()));
-                if (!mLauncher.isAllAppsVisible()) {
-                    mLauncher.getUserEventDispatcher().logActionOnContainer(
-                            Action.Touch.SWIPE,
-                            Action.Direction.UP,
-                            containerType);
-                }
-                mLauncher.showAppsView(true /* animated */);
-            }
-        }
-    }
-
-    public boolean isTransitioning() {
-        return mDetector.isDraggingOrSettling();
-    }
-
-    /**
-     * @param start {@code true} if start of new drag.
-     */
-    public void preparePull(boolean start) {
-        if (start) {
-            // Initialize values that should not change until #onDragEnd
-            mStatusBarHeight = mLauncher.getDragLayer().getInsets().top;
-            mHotseat.setVisibility(View.VISIBLE);
-            mAppsView.setVisibility(View.VISIBLE);
-        }
+    private void onProgressAnimationStart() {
+        // Initialize values that should not change until #onDragEnd
+        mHotseat.setVisibility(View.VISIBLE);
+        mAppsView.setVisibility(View.VISIBLE);
     }
 
     private void updateLightStatusBar(float shift) {
@@ -283,10 +120,15 @@
     }
 
     /**
-     * @param progress       value between 0 and 1, 0 shows all apps and 1 shows workspace
+     * Note this method should not be called outside this class. This is public because it is used
+     * in xml-based animations which also handle updating the appropriate UI.
+     *
+     * @param progress value between 0 and 1, 0 shows all apps and 1 shows workspace
+     *
+     * @see #setState(LauncherState)
+     * @see #setStateWithAnimation(LauncherState, AnimationLayerSet, AnimatorSet, AnimationConfig)
      */
     public void setProgress(float progress) {
-        float shiftPrevious = mProgress * mShiftRange;
         mProgress = progress;
         float shiftCurrent = progress * mShiftRange;
 
@@ -314,12 +156,6 @@
         mWorkspace.setWorkspaceYTranslationAndAlpha(
                 PARALLAX_COEFFICIENT * (-mShiftRange + shiftCurrent), workspaceAlpha);
 
-        if (!mDetector.isDraggingState()) {
-            mContainerVelocity = mDetector.computeVelocity(shiftCurrent - shiftPrevious,
-                    System.currentTimeMillis());
-        }
-
-        mCaretController.updateCaret(progress, mContainerVelocity, mDetector.isDraggingState());
         updateLightStatusBar(shiftCurrent);
     }
 
@@ -327,78 +163,47 @@
         return mProgress;
     }
 
-    private void calculateDuration(float velocity, float disp) {
-        mAnimationDuration = SwipeDetector.calculateDuration(velocity, disp / mShiftRange);
+    /**
+     * Sets the vertical transition progress to {@param state} and updates all the dependent UI
+     * accordingly.
+     */
+    @Override
+    public void setState(LauncherState state) {
+        setProgress(state.verticalProgress);
+        onProgressAnimationEnd();
     }
 
-    public void animateToAllApps(AnimatorSet animationOut, AnimationConfig outConfig) {
-        outConfig.shouldPost = true;
-        if (animationOut == null) {
+    /**
+     * Creates an animation which updates the vertical transition progress and updates all the
+     * dependent UI using various animation events
+     */
+    @Override
+    public void setStateWithAnimation(LauncherState toState, AnimationLayerSet layerViews,
+            AnimatorSet animationOut, AnimationConfig config) {
+        if (Float.compare(mProgress, toState.verticalProgress) == 0) {
+            // Fail fast
+            onProgressAnimationEnd();
             return;
         }
-        Interpolator interpolator;
-        if (mDetector.isIdleState()) {
-            preparePull(true);
-            mAnimationDuration = LauncherAnimUtils.ALL_APPS_TRANSITION_MS;
-            mShiftStart = mAppsView.getTranslationY();
-            interpolator = mFastOutSlowInInterpolator;
-        } else {
-            mScrollInterpolator.setVelocityAtZero(Math.abs(mContainerVelocity));
-            interpolator = mScrollInterpolator;
-            float nextFrameProgress = mProgress + mContainerVelocity * SINGLE_FRAME_MS / mShiftRange;
-            if (nextFrameProgress >= 0f) {
-                mProgress = nextFrameProgress;
-            }
-            outConfig.shouldPost = false;
-        }
 
-        outConfig.overrideDuration(mAnimationDuration);
-        ObjectAnimator driftAndAlpha = ObjectAnimator.ofFloat(this, "progress",
-                mProgress, 0f);
-        driftAndAlpha.setDuration(mAnimationDuration);
-        driftAndAlpha.setInterpolator(interpolator);
-        animationOut.play(driftAndAlpha);
-
-        animationOut.addListener(new AnimatorListenerAdapter() {
-            // Spring values used when the user has not flung all apps.
-            private final float MAX_RELEASE_VELOCITY = 10000;
-            // The delay (as a % of the animation duration) to start the springs.
-            private final float DELAY = 0.3f;
-
-            boolean canceled = false;
-
+        Interpolator interpolator = config.userControlled ? LINEAR : FAST_OUT_SLOW_IN;
+        ObjectAnimator anim = ObjectAnimator.ofFloat(
+                this, PROGRESS, mProgress, toState.verticalProgress);
+        anim.setDuration(config.duration);
+        anim.setInterpolator(interpolator);
+        anim.addListener(new AnimationSuccessListener() {
             @Override
-            public void onAnimationCancel(Animator animation) {
-                canceled = true;
+            public void onAnimationSuccess(Animator animator) {
+                onProgressAnimationEnd();
             }
 
             @Override
             public void onAnimationStart(Animator animation) {
-                // Add springs for cases where the user has not flung.
-                // ie. clicking on the caret, releasing all apps so it snaps up.
-                mAppsView.postDelayed(new Runnable() {
-                    @Override
-                    public void run() {
-                        if (!canceled && !mSpringAnimationHandler.isRunning()) {
-                            float velocity = mProgress * MAX_RELEASE_VELOCITY;
-                            mSpringAnimationHandler.animateToPositionWithVelocity(0, 1, velocity);
-                        }
-                    }
-                }, (long) (mAnimationDuration * DELAY));
-            }
-
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                if (canceled) {
-                    return;
-                } else {
-                    finishPullUp();
-                    cleanUpAnimation();
-                    mDetector.finishedScrolling();
-                }
+                onProgressAnimationStart();
             }
         });
-        mCurrentAnimation = animationOut;
+
+        animationOut.play(anim);
     }
 
     public void showDiscoveryBounce() {
@@ -412,12 +217,12 @@
             @Override
             public void onAnimationStart(Animator animator) {
                 mIsTranslateWithoutWorkspace = true;
-                preparePull(true);
+                onProgressAnimationStart();
             }
 
             @Override
             public void onAnimationEnd(Animator animator) {
-                finishPullDown();
+                onProgressAnimationEnd();
                 mDiscoBounceAnimation = null;
                 mIsTranslateWithoutWorkspace = false;
             }
@@ -434,83 +239,6 @@
         });
     }
 
-    public void animateToWorkspace(AnimatorSet animationOut, AnimationConfig outconfig) {
-        outconfig.shouldPost = true;
-        if (animationOut == null) {
-            return;
-        }
-        Interpolator interpolator;
-        if (mDetector.isIdleState()) {
-            preparePull(true);
-            mAnimationDuration = LauncherAnimUtils.ALL_APPS_TRANSITION_MS;
-            mShiftStart = mAppsView.getTranslationY();
-            interpolator = mFastOutSlowInInterpolator;
-        } else {
-            mScrollInterpolator.setVelocityAtZero(Math.abs(mContainerVelocity));
-            interpolator = mScrollInterpolator;
-            float nextFrameProgress = mProgress + mContainerVelocity * SINGLE_FRAME_MS / mShiftRange;
-            if (nextFrameProgress <= 1f) {
-                mProgress = nextFrameProgress;
-            }
-            outconfig.shouldPost = false;
-        }
-
-        outconfig.overrideDuration(mAnimationDuration);
-        ObjectAnimator driftAndAlpha = ObjectAnimator.ofFloat(this, "progress",
-                mProgress, 1f);
-        driftAndAlpha.setDuration(mAnimationDuration);
-        driftAndAlpha.setInterpolator(interpolator);
-        animationOut.play(driftAndAlpha);
-
-        animationOut.addListener(new AnimatorListenerAdapter() {
-            boolean canceled = false;
-
-            @Override
-            public void onAnimationCancel(Animator animation) {
-                canceled = true;
-            }
-
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                if (canceled) {
-                    return;
-                } else {
-                    finishPullDown();
-                    cleanUpAnimation();
-                    mDetector.finishedScrolling();
-                }
-            }
-        });
-        mCurrentAnimation = animationOut;
-    }
-
-    public void finishPullUp() {
-        mHotseat.setVisibility(View.INVISIBLE);
-        if (hasSpringAnimationHandler()) {
-            mSpringAnimationHandler.remove(mSearchSpring);
-            mSpringAnimationHandler.reset();
-        }
-        setProgress(0f);
-    }
-
-    public void finishPullDown() {
-        mAppsView.setVisibility(View.INVISIBLE);
-        mHotseat.setVisibility(View.VISIBLE);
-        mAppsView.reset();
-        if (hasSpringAnimationHandler()) {
-            mSpringAnimationHandler.reset();
-        }
-        setProgress(1f);
-    }
-
-    private void cancelAnimation() {
-        if (mCurrentAnimation != null) {
-            mCurrentAnimation.cancel();
-            mCurrentAnimation = null;
-        }
-        cancelDiscoveryAnimation();
-    }
-
     public void cancelDiscoveryAnimation() {
         if (mDiscoBounceAnimation == null) {
             return;
@@ -519,24 +247,12 @@
         mDiscoBounceAnimation = null;
     }
 
-    private void cleanUpAnimation() {
-        mCurrentAnimation = null;
-    }
-
     public void setupViews(AllAppsContainerView appsView, Hotseat hotseat, Workspace workspace) {
         mAppsView = appsView;
         mHotseat = hotseat;
         mWorkspace = workspace;
         mHotseat.bringToFront();
-        mCaretController = new AllAppsCaretController(
-                mWorkspace.getPageIndicator().getCaretDrawable(), mLauncher);
         mAppsView.getSearchUiManager().addOnScrollRangeChangeListener(this);
-        mSpringAnimationHandler = mAppsView.getSpringAnimationHandler();
-        mSearchSpring = mAppsView.getSearchUiManager().getSpringForFling();
-    }
-
-    private boolean hasSpringAnimationHandler() {
-        return FeatureFlags.LAUNCHER3_PHYSICS && mSpringAnimationHandler != null;
     }
 
     @Override
@@ -544,4 +260,19 @@
         mShiftRange = scrollRange;
         setProgress(mProgress);
     }
+
+    /**
+     * Set the final view states based on the progress.
+     * TODO: This logic should go in {@link LauncherState}
+     */
+    private void onProgressAnimationEnd() {
+        if (Float.compare(mProgress, 1f) == 0) {
+            mAppsView.setVisibility(View.INVISIBLE);
+            mHotseat.setVisibility(View.VISIBLE);
+            mAppsView.reset();
+        } else if (Float.compare(mProgress, 0f) == 0) {
+            mHotseat.setVisibility(View.INVISIBLE);
+            mAppsView.setVisibility(View.VISIBLE);
+        }
+    }
 }
diff --git a/src/com/android/launcher3/allapps/AlphabeticalAppsList.java b/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
index f0b650b..f9dde2f 100644
--- a/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
+++ b/src/com/android/launcher3/allapps/AlphabeticalAppsList.java
@@ -30,6 +30,7 @@
 import com.android.launcher3.discovery.AppDiscoveryUpdateState;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.ComponentKeyMapper;
+import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.LabelComparator;
 
 import java.util.ArrayList;
@@ -165,7 +166,7 @@
 
     // The set of apps from the system not including predictions
     private final List<AppInfo> mApps = new ArrayList<>();
-    private final HashMap<ComponentKey, AppInfo> mComponentToAppMap = new HashMap<>();
+    private final HashMap<ComponentKey, AppInfo> mComponentToAppMap;
 
     // The set of filtered apps with the current filter
     private final List<AppInfo> mFilteredApps = new ArrayList<>();
@@ -188,13 +189,20 @@
     private int mNumAppsPerRow;
     private int mNumPredictedAppsPerRow;
     private int mNumAppRowsInAdapter;
+    private ItemInfoMatcher mItemFilter;
 
-    public AlphabeticalAppsList(Context context) {
+    public AlphabeticalAppsList(Context context, HashMap<ComponentKey, AppInfo> componentToAppMap) {
+        mComponentToAppMap = componentToAppMap;
         mLauncher = Launcher.getLauncher(context);
         mIndexer = new AlphabeticIndexCompat(context);
         mAppNameComparator = new AppInfoComparator(context);
     }
 
+    public void updateItemFilter(ItemInfoMatcher itemFilter) {
+        this.mItemFilter = itemFilter;
+        onAppsUpdated();
+    }
+
     /**
      * Sets the number of apps per row.
      */
@@ -374,40 +382,18 @@
     }
 
     /**
-     * Sets the current set of apps.
-     */
-    public void setApps(List<AppInfo> apps) {
-        mComponentToAppMap.clear();
-        addOrUpdateApps(apps);
-    }
-
-    /**
-     * Adds or updates existing apps in the list
-     */
-    public void addOrUpdateApps(List<AppInfo> apps) {
-        for (AppInfo app : apps) {
-            mComponentToAppMap.put(app.toComponentKey(), app);
-        }
-        onAppsUpdated();
-    }
-
-    /**
-     * Removes some apps from the list.
-     */
-    public void removeApps(List<AppInfo> apps) {
-        for (AppInfo app : apps) {
-            mComponentToAppMap.remove(app.toComponentKey());
-        }
-        onAppsUpdated();
-    }
-
-    /**
      * Updates internals when the set of apps are updated.
      */
-    private void onAppsUpdated() {
+    void onAppsUpdated() {
         // Sort the list of apps
         mApps.clear();
-        mApps.addAll(mComponentToAppMap.values());
+
+        for (AppInfo app : mComponentToAppMap.values()) {
+            if (mItemFilter == null || mItemFilter.matches(app, null)) {
+                mApps.add(app);
+            }
+        }
+
         Collections.sort(mApps, mAppNameComparator);
 
         // As a special case for some languages (currently only Simplified Chinese), we may need to
@@ -474,42 +460,45 @@
         mFastScrollerSections.clear();
         mAdapterItems.clear();
 
-        if (DEBUG_PREDICTIONS) {
-            if (mPredictedAppComponents.isEmpty() && !mApps.isEmpty()) {
-                mPredictedAppComponents.add(new ComponentKeyMapper<AppInfo>(new ComponentKey(mApps.get(0).componentName,
-                        Process.myUserHandle())));
-                mPredictedAppComponents.add(new ComponentKeyMapper<AppInfo>(new ComponentKey(mApps.get(0).componentName,
-                        Process.myUserHandle())));
-                mPredictedAppComponents.add(new ComponentKeyMapper<AppInfo>(new ComponentKey(mApps.get(0).componentName,
-                        Process.myUserHandle())));
-                mPredictedAppComponents.add(new ComponentKeyMapper<AppInfo>(new ComponentKey(mApps.get(0).componentName,
-                        Process.myUserHandle())));
-            }
-        }
-
-        // Process the predicted app components
-        mPredictedApps.clear();
-        if (mPredictedAppComponents != null && !mPredictedAppComponents.isEmpty() && !hasFilter()) {
-            mPredictedApps.addAll(processPredictedAppComponents(mPredictedAppComponents));
-
-            if (!mPredictedApps.isEmpty()) {
-                // Add a section for the predictions
-                lastFastScrollerSectionInfo = new FastScrollSectionInfo("");
-                mFastScrollerSections.add(lastFastScrollerSectionInfo);
-
-                // Add the predicted app items
-                for (AppInfo info : mPredictedApps) {
-                    AdapterItem appItem = AdapterItem.asPredictedApp(position++, "", info,
-                            appIndex++);
-                    if (lastFastScrollerSectionInfo.fastScrollToItem == null) {
-                        lastFastScrollerSectionInfo.fastScrollToItem = appItem;
-                    }
-                    mAdapterItems.add(appItem);
-                    mFilteredApps.add(info);
+        if (!FeatureFlags.ALL_APPS_TABS_ENABLED) {
+            if (DEBUG_PREDICTIONS) {
+                if (mPredictedAppComponents.isEmpty() && !mApps.isEmpty()) {
+                    mPredictedAppComponents.add(new ComponentKeyMapper<AppInfo>(new ComponentKey(mApps.get(0).componentName,
+                            Process.myUserHandle())));
+                    mPredictedAppComponents.add(new ComponentKeyMapper<AppInfo>(new ComponentKey(mApps.get(0).componentName,
+                            Process.myUserHandle())));
+                    mPredictedAppComponents.add(new ComponentKeyMapper<AppInfo>(new ComponentKey(mApps.get(0).componentName,
+                            Process.myUserHandle())));
+                    mPredictedAppComponents.add(new ComponentKeyMapper<AppInfo>(new ComponentKey(mApps.get(0).componentName,
+                            Process.myUserHandle())));
                 }
-
-                mAdapterItems.add(AdapterItem.asPredictionDivider(position++));
             }
+
+            // Process the predicted app components
+            mPredictedApps.clear();
+            if (mPredictedAppComponents != null && !mPredictedAppComponents.isEmpty() && !hasFilter()) {
+                mPredictedApps.addAll(processPredictedAppComponents(mPredictedAppComponents));
+
+                if (!mPredictedApps.isEmpty()) {
+                    // Add a section for the predictions
+                    lastFastScrollerSectionInfo = new FastScrollSectionInfo("");
+                    mFastScrollerSections.add(lastFastScrollerSectionInfo);
+
+                    // Add the predicted app items
+                    for (AppInfo info : mPredictedApps) {
+                        AdapterItem appItem = AdapterItem.asPredictedApp(position++, "", info,
+                                appIndex++);
+                        if (lastFastScrollerSectionInfo.fastScrollToItem == null) {
+                            lastFastScrollerSectionInfo.fastScrollToItem = appItem;
+                        }
+                        mAdapterItems.add(appItem);
+                        mFilteredApps.add(info);
+                    }
+
+                    mAdapterItems.add(AdapterItem.asPredictionDivider(position++));
+                }
+            }
+
         }
 
         // Recreate the filtered and sectioned apps (for convenience for the grid layout) from the
@@ -626,7 +615,6 @@
         if (mSearchResults == null) {
             return mApps;
         }
-
         ArrayList<AppInfo> result = new ArrayList<>();
         for (ComponentKey key : mSearchResults) {
             AppInfo match = mComponentToAppMap.get(key);
@@ -648,10 +636,6 @@
         return result;
     }
 
-    public AppInfo findApp(ComponentKeyMapper<AppInfo> mapper) {
-        return mapper.getItem(mComponentToAppMap);
-    }
-
     /**
      * Returns the cached section name for the given title, recomputing and updating the cache if
      * the title has no cached section name.
diff --git a/src/com/android/launcher3/allapps/FloatingHeaderHandler.java b/src/com/android/launcher3/allapps/FloatingHeaderHandler.java
new file mode 100644
index 0000000..984966b
--- /dev/null
+++ b/src/com/android/launcher3/allapps/FloatingHeaderHandler.java
@@ -0,0 +1,139 @@
+/*
+ * 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.allapps;
+
+import android.graphics.Rect;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v7.widget.RecyclerView;
+import android.view.View;
+
+import com.android.launcher3.R;
+
+public class FloatingHeaderHandler extends RecyclerView.OnScrollListener {
+
+    private final int mMaxTranslation;
+    private final View mHeaderView;
+    private final PredictionRowView mContentView;
+    private final RecyclerView mMainRV;
+    private final RecyclerView mWorkRV;
+    private final Rect mClip = new Rect(0, 0, Integer.MAX_VALUE, Integer.MAX_VALUE);
+
+    private boolean mHeaderHidden;
+    private int mSnappedScrolledY;
+    private int mTranslationY;
+    private int mMainScrolledY;
+    private int mWorkScrolledY;
+    private boolean mMainRVActive;
+
+    public FloatingHeaderHandler(@NonNull View header, @NonNull RecyclerView personalRV,
+            @Nullable RecyclerView workRV, int contentHeight) {
+        mHeaderView = header;
+        mContentView = mHeaderView.findViewById(R.id.header_content);
+        mContentView.getLayoutParams().height = contentHeight;
+        mMaxTranslation = contentHeight;
+        mMainRV = personalRV;
+        mMainRV.addOnScrollListener(this);
+        mWorkRV = workRV;
+        if (workRV != null) {
+            workRV.addOnScrollListener(this);
+        }
+        setMainActive(true);
+    }
+
+    public void setMainActive(boolean active) {
+        mMainRVActive = active;
+        mSnappedScrolledY = getCurrentScroll() - mMaxTranslation;
+        setExpanded(true);
+    }
+
+    public View getHeaderView() {
+        return mHeaderView;
+    }
+
+    public PredictionRowView getContentView() {
+        return mContentView;
+    }
+
+    @Override
+    public void onScrolled(RecyclerView rv, int dx, int dy) {
+        boolean isMainRV = rv == mMainRV;
+        if (isMainRV != mMainRVActive) {
+            return;
+        }
+
+        int current = isMainRV
+                ? (mMainScrolledY -= dy)
+                : (mWorkScrolledY -= dy);
+
+        if (dy == 0) {
+            setExpanded(true);
+        } else {
+            moved(current);
+            apply();
+        }
+    }
+
+    private void moved(final int currentScrollY) {
+        if (mHeaderHidden) {
+            if (currentScrollY <= mSnappedScrolledY) {
+                mSnappedScrolledY = currentScrollY;
+            } else {
+                mHeaderHidden = false;
+            }
+            mTranslationY = currentScrollY;
+        } else {
+            mTranslationY = currentScrollY - mSnappedScrolledY - mMaxTranslation;
+
+            // update state vars
+            if (mTranslationY >= 0) { // expanded: must not move down further
+                mTranslationY = 0;
+                mSnappedScrolledY = currentScrollY - mMaxTranslation;
+            } else if (mTranslationY <= -mMaxTranslation) { // hide or stay hidden
+                mHeaderHidden = true;
+                mSnappedScrolledY = currentScrollY;
+            }
+        }
+    }
+
+    private void apply() {
+        mTranslationY = Math.max(mTranslationY, -mMaxTranslation);
+        mHeaderView.setTranslationY(mTranslationY);
+        mClip.top = mMaxTranslation + mTranslationY;
+        mMainRV.setClipBounds(mClip);
+        if (mWorkRV != null) {
+            mWorkRV.setClipBounds(mClip);
+        }
+    }
+
+    private void setExpanded(boolean expand) {
+        int translateTo = expand ? 0 : -mMaxTranslation;
+        mTranslationY = translateTo;
+        apply();
+
+        mHeaderHidden = !expand;
+        mSnappedScrolledY = expand ? getCurrentScroll() - mMaxTranslation : getCurrentScroll();
+    }
+
+    public boolean isExpanded() {
+        return !mHeaderHidden;
+    }
+
+    private int getCurrentScroll() {
+        return mMainRVActive ? mMainScrolledY : mWorkScrolledY;
+    }
+
+}
diff --git a/src/com/android/launcher3/allapps/InterceptingViewPager.java b/src/com/android/launcher3/allapps/InterceptingViewPager.java
new file mode 100644
index 0000000..3524ca9
--- /dev/null
+++ b/src/com/android/launcher3/allapps/InterceptingViewPager.java
@@ -0,0 +1,91 @@
+/*
+ * 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.allapps;
+
+import android.content.Context;
+import android.graphics.PointF;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v4.view.ViewPager;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.ViewConfiguration;
+
+import com.android.launcher3.touch.SwipeDetector;
+
+import static android.view.MotionEvent.INVALID_POINTER_ID;
+
+
+public class InterceptingViewPager extends ViewPager {
+
+
+    private final PointF mDownPos = new PointF();
+    private final PointF mLastPos = new PointF();
+    private final int mSlop;
+    private int mActivePointerId = INVALID_POINTER_ID;
+
+    public InterceptingViewPager(@NonNull Context context) {
+        super(context);
+        mSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
+    }
+
+    public InterceptingViewPager(@NonNull Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+        mSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
+    }
+
+    @Override
+    public boolean onInterceptTouchEvent(MotionEvent ev) {
+        boolean result = super.onInterceptTouchEvent(ev);
+        if (!result) {
+            switch (ev.getActionMasked()) {
+                case MotionEvent.ACTION_DOWN:
+                    mActivePointerId = ev.getPointerId(0);
+                    mDownPos.set(ev.getX(), ev.getY());
+                    mLastPos.set(mDownPos);
+                    break;
+                case MotionEvent.ACTION_POINTER_UP:
+                    int ptrIdx = ev.getActionIndex();
+                    int ptrId = ev.getPointerId(ptrIdx);
+                    if (ptrId == mActivePointerId) {
+                        final int newPointerIdx = ptrIdx == 0 ? 1 : 0;
+                        mDownPos.set(
+                                ev.getX(newPointerIdx) - (mLastPos.x - mDownPos.x),
+                                ev.getY(newPointerIdx) - (mLastPos.y - mDownPos.y));
+                        mLastPos.set(ev.getX(newPointerIdx), ev.getY(newPointerIdx));
+                        mActivePointerId = ev.getPointerId(newPointerIdx);
+                    }
+                    break;
+                case MotionEvent.ACTION_MOVE:
+                    int pointerIndex = ev.findPointerIndex(mActivePointerId);
+                    if (pointerIndex == INVALID_POINTER_ID) {
+                        break;
+                    }
+                    float deltaX = ev.getX() - mDownPos.x;
+                    float deltaY = ev.getY() - mDownPos.y;
+                    if (Math.abs(deltaX) > mSlop && Math.abs(deltaX) > Math.abs(deltaY)) {
+                        return true;
+                    }
+                    mLastPos.set(ev.getX(pointerIndex), ev.getY(pointerIndex));
+                    break;
+                default:
+                    break;
+            }
+        }
+        return result;
+    }
+
+}
\ No newline at end of file
diff --git a/src/com/android/launcher3/allapps/PredictionRowView.java b/src/com/android/launcher3/allapps/PredictionRowView.java
new file mode 100644
index 0000000..5551f07
--- /dev/null
+++ b/src/com/android/launcher3/allapps/PredictionRowView.java
@@ -0,0 +1,139 @@
+/*
+ * 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.allapps;
+
+import android.content.Context;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.widget.LinearLayout;
+
+import com.android.launcher3.AppInfo;
+import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.util.ComponentKey;
+import com.android.launcher3.util.ComponentKeyMapper;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+
+public class PredictionRowView extends LinearLayout {
+
+    private static final String TAG = "PredictionRowView";
+
+    private HashMap<ComponentKey, AppInfo> mComponentToAppMap;
+    private int mNumPredictedAppsPerRow;
+    // The set of predicted app component names
+    private final List<ComponentKeyMapper<AppInfo>> mPredictedAppComponents = new ArrayList<>();
+    // The set of predicted apps resolved from the component names and the current set of apps
+    private final List<AppInfo> mPredictedApps = new ArrayList<>();
+
+    public PredictionRowView(@NonNull Context context) {
+        this(context, null);
+    }
+
+    public PredictionRowView(@NonNull Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+        setOrientation(LinearLayout.HORIZONTAL);
+    }
+
+    public void setComponentToAppMap(HashMap<ComponentKey, AppInfo> componentToAppMap) {
+        this.mComponentToAppMap = componentToAppMap;
+    }
+
+    /**
+     * Sets the number of apps per row.
+     */
+    public void setNumAppsPerRow(int numPredictedAppsPerRow) {
+        mNumPredictedAppsPerRow = numPredictedAppsPerRow;
+    }
+
+    public void onAppsUpdated() {
+        // TODO
+    }
+
+    /**
+     * Returns the predicted apps.
+     */
+    public List<AppInfo> getPredictedApps() {
+        return mPredictedApps;
+    }
+
+    /**
+     * Sets the current set of predicted apps.
+     *
+     * This can be called before we get the full set of applications, we should merge the results
+     * only in onAppsUpdated() which is idempotent.
+     *
+     * If the number of predicted apps is the same as the previous list of predicted apps,
+     * we can optimize by swapping them in place.
+     */
+    public void setPredictedApps(List<ComponentKeyMapper<AppInfo>> apps) {
+        mPredictedAppComponents.clear();
+        mPredictedAppComponents.addAll(apps);
+
+        List<AppInfo> newPredictedApps = processPredictedAppComponents(apps);
+        // We only need to do work if any of the visible predicted apps have changed.
+        if (!newPredictedApps.equals(mPredictedApps)) {
+            if (newPredictedApps.size() == mPredictedApps.size()) {
+                swapInNewPredictedApps(newPredictedApps);
+            } else {
+                // We need to update the appIndex of all the items.
+                onAppsUpdated();
+            }
+        }
+    }
+
+    private List<AppInfo> processPredictedAppComponents(
+            List<ComponentKeyMapper<AppInfo>> components) {
+        if (mComponentToAppMap.isEmpty()) {
+            // Apps have not been bound yet.
+            return Collections.emptyList();
+        }
+
+        List<AppInfo> predictedApps = new ArrayList<>();
+        for (ComponentKeyMapper<AppInfo> mapper : components) {
+            AppInfo info = mapper.getItem(mComponentToAppMap);
+            if (info != null) {
+                predictedApps.add(info);
+            } else {
+                if (FeatureFlags.IS_DOGFOOD_BUILD) {
+                    Log.e(TAG, "Predicted app not found: " + mapper);
+                }
+            }
+            // Stop at the number of predicted apps
+            if (predictedApps.size() == mNumPredictedAppsPerRow) {
+                break;
+            }
+        }
+        return predictedApps;
+    }
+
+    /**
+     * Swaps out the old predicted apps with the new predicted apps, in place. This optimization
+     * allows us to skip an entire relayout that would otherwise be called by notifyDataSetChanged.
+     *
+     * Note: This should only be called if the # of predicted apps is the same.
+     *       This method assumes that predicted apps are the first items in the adapter.
+     */
+    private void swapInNewPredictedApps(List<AppInfo> apps) {
+        // TODO
+    }
+
+}
diff --git a/src/com/android/launcher3/allapps/SearchUiManager.java b/src/com/android/launcher3/allapps/SearchUiManager.java
index 34230e0..f562b6a 100644
--- a/src/com/android/launcher3/allapps/SearchUiManager.java
+++ b/src/com/android/launcher3/allapps/SearchUiManager.java
@@ -27,7 +27,7 @@
     /**
      * Initializes the search manager.
      */
-    void initialize(AlphabeticalAppsList appsList, AllAppsRecyclerView recyclerView);
+    void initialize(AllAppsContainerView containerView);
 
     /**
      * A {@link SpringAnimation} that will be used when the user flings.
diff --git a/src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java b/src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java
index ddf6e58..e65a2c4 100644
--- a/src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java
+++ b/src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java
@@ -31,19 +31,19 @@
 import android.view.KeyEvent;
 import android.view.View;
 import android.widget.FrameLayout;
+
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.ExtendedEditText;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
-import com.android.launcher3.allapps.AllAppsGridAdapter;
-import com.android.launcher3.allapps.AllAppsRecyclerView;
+import com.android.launcher3.allapps.AllAppsContainerView;
 import com.android.launcher3.allapps.AlphabeticalAppsList;
 import com.android.launcher3.allapps.SearchUiManager;
-import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.discovery.AppDiscoveryItem;
 import com.android.launcher3.discovery.AppDiscoveryUpdateState;
 import com.android.launcher3.graphics.TintedDrawableSpan;
 import com.android.launcher3.util.ComponentKey;
+
 import java.util.ArrayList;
 
 /**
@@ -60,11 +60,9 @@
 
     private ExtendedEditText mSearchInput;
     private AlphabeticalAppsList mApps;
-    private AllAppsRecyclerView mAppsRecyclerView;
-    private AllAppsGridAdapter mAdapter;
     private View mDivider;
     private HeaderElevationController mElevationController;
-
+    private AllAppsContainerView mAppsView;
     private SpringAnimation mSpring;
 
     public AppsSearchContainerLayout(Context context) {
@@ -124,14 +122,12 @@
 
 
     @Override
-    public void initialize(
-            AlphabeticalAppsList appsList, AllAppsRecyclerView recyclerView) {
-        mApps = appsList;
-        mAppsRecyclerView = recyclerView;
-        mAppsRecyclerView.addOnScrollListener(mElevationController);
-        mAdapter = (AllAppsGridAdapter) mAppsRecyclerView.getAdapter();
+    public void initialize(AllAppsContainerView appsView) {
+        mApps = appsView.getApps();
+        mAppsView = appsView;
+        appsView.addElevationController(mElevationController);
         mSearchBarController.initialize(
-                new DefaultAppSearchAlgorithm(appsList.getApps()), mSearchInput, mLauncher, this);
+                new DefaultAppSearchAlgorithm(mApps.getApps()), mSearchInput, mLauncher, this);
     }
 
     @Override
@@ -174,7 +170,7 @@
         if (apps != null) {
             mApps.setOrderedFilter(apps);
             notifyResultChanged();
-            mAdapter.setLastSearchQuery(query);
+            mAppsView.setLastSearchQuery(query);
         }
     }
 
@@ -201,7 +197,7 @@
 
     private void notifyResultChanged() {
         mElevationController.reset();
-        mAppsRecyclerView.onSearchResultsChanged();
+        mAppsView.onSearchResultsChanged();
     }
 
     @Override
diff --git a/src/com/android/launcher3/anim/AnimationSuccessListener.java b/src/com/android/launcher3/anim/AnimationSuccessListener.java
new file mode 100644
index 0000000..9448632
--- /dev/null
+++ b/src/com/android/launcher3/anim/AnimationSuccessListener.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3.anim;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+
+/**
+ * Extension of {@link AnimatorListenerAdapter} for listening for non-cancelled animations
+ */
+public abstract class AnimationSuccessListener extends AnimatorListenerAdapter {
+
+    protected boolean mCancelled = false;
+
+    @Override
+    public void onAnimationCancel(Animator animation) {
+        mCancelled = true;
+    }
+
+    @Override
+    public void onAnimationEnd(Animator animation) {
+        if (!mCancelled) {
+            onAnimationSuccess(animation);
+        }
+    }
+
+    public abstract void onAnimationSuccess(Animator animator);
+}
diff --git a/src/com/android/launcher3/anim/AnimatorPlaybackController.java b/src/com/android/launcher3/anim/AnimatorPlaybackController.java
new file mode 100644
index 0000000..826a20e
--- /dev/null
+++ b/src/com/android/launcher3/anim/AnimatorPlaybackController.java
@@ -0,0 +1,216 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.anim;
+
+import android.animation.Animator;
+import android.animation.Animator.AnimatorListener;
+import android.animation.AnimatorSet;
+import android.animation.ValueAnimator;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * Helper class to control the playback of an {@link AnimatorSet}, with custom interpolators
+ * and durations.
+ *
+ * Note: The implementation does not support start delays on child animations or
+ * sequential playbacks.
+ */
+public abstract class AnimatorPlaybackController implements ValueAnimator.AnimatorUpdateListener {
+
+    public static AnimatorPlaybackController wrap(AnimatorSet anim, long duration) {
+
+        /**
+         * TODO: use {@link AnimatorSet#setCurrentPlayTime(long)} once b/68382377 is fixed.
+         */
+        return new AnimatorPlaybackControllerVL(anim, duration);
+    }
+
+    private final ValueAnimator mAnimationPlayer;
+    private final long mDuration;
+
+    protected final AnimatorSet mAnim;
+
+    protected float mCurrentFraction;
+    private Runnable mEndAction;
+
+    protected AnimatorPlaybackController(AnimatorSet anim, long duration) {
+        mAnim = anim;
+        mDuration = duration;
+
+        mAnimationPlayer = ValueAnimator.ofFloat(0, 1);
+        mAnimationPlayer.setInterpolator(Interpolators.LINEAR);
+        mAnimationPlayer.addListener(new OnAnimationEndDispatcher());
+        mAnimationPlayer.addUpdateListener(this);
+    }
+
+    public AnimatorSet getTarget() {
+        return mAnim;
+    }
+
+    /**
+     * Starts playing the animation forward from current position.
+     */
+    public void start() {
+        mAnimationPlayer.setFloatValues(mCurrentFraction, 1);
+        mAnimationPlayer.setDuration(clampDuration(1 - mCurrentFraction));
+        mAnimationPlayer.start();
+    }
+
+    /**
+     * Starts playing the animation backwards from current position
+     */
+    public void reverse() {
+        mAnimationPlayer.setFloatValues(mCurrentFraction, 0);
+        mAnimationPlayer.setDuration(clampDuration(mCurrentFraction));
+        mAnimationPlayer.start();
+    }
+
+    /**
+     * Pauses the currently playing animation.
+     */
+    public void pause() {
+        mAnimationPlayer.cancel();
+    }
+
+    /**
+     * Returns the underlying animation used for controlling the set.
+     */
+    public ValueAnimator getAnimationPlayer() {
+        return mAnimationPlayer;
+    }
+
+    /**
+     * Sets the current animation position and updates all the child animators accordingly.
+     */
+    public abstract void setPlayFraction(float fraction);
+
+    public float getProgressFraction() {
+        return mCurrentFraction;
+    }
+
+    /**
+     * Sets the action to be called when the animation is completed. Also clears any
+     * previously set action.
+     */
+    public void setEndAction(Runnable runnable) {
+        mEndAction = runnable;
+    }
+
+    @Override
+    public void onAnimationUpdate(ValueAnimator valueAnimator) {
+        setPlayFraction((float) valueAnimator.getAnimatedValue());
+    }
+
+    protected long clampDuration(float fraction) {
+        float playPos = mDuration * fraction;
+        if (playPos <= 0) {
+            return 0;
+        } else {
+            return Math.min((long) playPos, mDuration);
+        }
+    }
+
+    public void dispatchOnStart() {
+        dispatchOnStartRecursively(mAnim);
+    }
+
+    private void dispatchOnStartRecursively(Animator animator) {
+        for (AnimatorListener l : nonNullList(animator.getListeners())) {
+            l.onAnimationStart(animator);
+        }
+
+        if (animator instanceof AnimatorSet) {
+            for (Animator anim : nonNullList(((AnimatorSet) animator).getChildAnimations())) {
+                dispatchOnStartRecursively(anim);
+            }
+        }
+    }
+
+    public static class AnimatorPlaybackControllerVL extends AnimatorPlaybackController {
+
+        private final ValueAnimator[] mChildAnimations;
+
+        private AnimatorPlaybackControllerVL(AnimatorSet anim, long duration) {
+            super(anim, duration);
+
+            // Build animation list
+            ArrayList<ValueAnimator> childAnims = new ArrayList<>();
+            getAnimationsRecur(mAnim, childAnims);
+            mChildAnimations = childAnims.toArray(new ValueAnimator[childAnims.size()]);
+        }
+
+        private void getAnimationsRecur(AnimatorSet anim, ArrayList<ValueAnimator> out) {
+            long forceDuration = anim.getDuration();
+            for (Animator child : anim.getChildAnimations()) {
+                if (forceDuration > 0) {
+                    child.setDuration(forceDuration);
+                }
+                if (child instanceof ValueAnimator) {
+                    out.add((ValueAnimator) child);
+                } else if (child instanceof AnimatorSet) {
+                    getAnimationsRecur((AnimatorSet) child, out);
+                } else {
+                    throw new RuntimeException("Unknown animation type " + child);
+                }
+            }
+        }
+
+        @Override
+        public void setPlayFraction(float fraction) {
+            mCurrentFraction = fraction;
+            long playPos = clampDuration(fraction);
+            for (ValueAnimator anim : mChildAnimations) {
+                anim.setCurrentPlayTime(Math.min(playPos, anim.getDuration()));
+            }
+        }
+
+    }
+
+    private class OnAnimationEndDispatcher extends AnimationSuccessListener {
+
+        @Override
+        public void onAnimationStart(Animator animation) {
+            mCancelled = false;
+        }
+
+        @Override
+        public void onAnimationSuccess(Animator animator) {
+            dispatchOnEndRecursively(mAnim);
+            if (mEndAction != null) {
+                mEndAction.run();
+            }
+        }
+
+        private void dispatchOnEndRecursively(Animator animator) {
+            for (AnimatorListener l : nonNullList(animator.getListeners())) {
+                l.onAnimationEnd(animator);
+            }
+
+            if (animator instanceof AnimatorSet) {
+                for (Animator anim : nonNullList(((AnimatorSet) animator).getChildAnimations())) {
+                    dispatchOnEndRecursively(anim);
+                }
+            }
+        }
+    }
+
+    private static <T> List<T> nonNullList(ArrayList<T> list) {
+        return list == null ? Collections.<T>emptyList() : list;
+    }
+}
diff --git a/src/com/android/launcher3/anim/Interpolators.java b/src/com/android/launcher3/anim/Interpolators.java
new file mode 100644
index 0000000..8826e64
--- /dev/null
+++ b/src/com/android/launcher3/anim/Interpolators.java
@@ -0,0 +1,90 @@
+/*
+ * 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.view.animation.AccelerateInterpolator;
+import android.view.animation.DecelerateInterpolator;
+import android.view.animation.Interpolator;
+import android.view.animation.LinearInterpolator;
+import android.view.animation.PathInterpolator;
+
+
+/**
+ * Common interpolators used in Launcher
+ */
+public class Interpolators {
+
+    public static final Interpolator LINEAR = new LinearInterpolator();
+
+    public static final Interpolator ACCEL = new AccelerateInterpolator();
+    public static final Interpolator ACCEL_1_5 = new AccelerateInterpolator(1.5f);
+    public static final Interpolator ACCEL_2 = new AccelerateInterpolator(2);
+
+    public static final Interpolator DEACCEL = new DecelerateInterpolator();
+    public static final Interpolator DEACCEL_1_5 = new DecelerateInterpolator(1.5f);
+    public static final Interpolator DEACCEL_2 = new DecelerateInterpolator(2);
+    public static final Interpolator DEACCEL_2_5 = new DecelerateInterpolator(2.5f);
+    public static final Interpolator DEACCEL_3 = new DecelerateInterpolator(3f);
+
+    public static final Interpolator FAST_OUT_SLOW_IN = new PathInterpolator(0.4f, 0f, 0.2f, 1f);
+
+    /**
+     * Inversion of zInterpolate, compounded with an ease-out.
+     */
+    public static final Interpolator ZOOM_IN = new Interpolator() {
+
+        private static final float FOCAL_LENGTH = 0.35f;
+
+        @Override
+        public float getInterpolation(float v) {
+            return DEACCEL_3.getInterpolation(1 - zInterpolate(1 - v));
+        }
+
+        /**
+         * This interpolator emulates the rate at which the perceived scale of an object changes
+         * as its distance from a camera increases. When this interpolator is applied to a scale
+         * animation on a view, it evokes the sense that the object is shrinking due to moving away
+         * from the camera.
+         */
+        private float zInterpolate(float input) {
+            return (1.0f - FOCAL_LENGTH / (FOCAL_LENGTH + input)) /
+                    (1.0f - FOCAL_LENGTH / (FOCAL_LENGTH + 1.0f));
+        }
+    };
+
+    public static final Interpolator SCROLL = new Interpolator() {
+        @Override
+        public float getInterpolation(float t) {
+            t -= 1.0f;
+            return t*t*t*t*t + 1;
+        }
+    };
+
+    public static final Interpolator SCROLL_CUBIC = new Interpolator() {
+        @Override
+        public float getInterpolation(float t) {
+            t -= 1.0f;
+            return t*t*t + 1;
+        }
+    };
+
+    private static final float FAST_FLING_PX_MS = 10;
+
+    public static Interpolator scrollInterpolatorForVelocity(float velocity) {
+        return Math.abs(velocity) > FAST_FLING_PX_MS ? SCROLL : SCROLL_CUBIC;
+    }
+}
\ No newline at end of file
diff --git a/src/com/android/launcher3/anim/RevealOutlineAnimation.java b/src/com/android/launcher3/anim/RevealOutlineAnimation.java
index 51d00d9..1312da9 100644
--- a/src/com/android/launcher3/anim/RevealOutlineAnimation.java
+++ b/src/com/android/launcher3/anim/RevealOutlineAnimation.java
@@ -28,10 +28,6 @@
     /** Sets the progress, from 0 to 1, of the reveal animation. */
     abstract void setProgress(float progress);
 
-    public ValueAnimator createRevealAnimator(final View revealView) {
-        return createRevealAnimator(revealView, false);
-    }
-
     public ValueAnimator createRevealAnimator(final View revealView, boolean isReversed) {
         ValueAnimator va =
                 isReversed ? ValueAnimator.ofFloat(1f, 0f) : ValueAnimator.ofFloat(0f, 1f);
@@ -39,8 +35,13 @@
 
         va.addListener(new AnimatorListenerAdapter() {
             private boolean mWasCanceled = false;
+            private boolean mIsClippedToOutline;
+            private ViewOutlineProvider mOldOutlineProvider;
 
             public void onAnimationStart(Animator animation) {
+                mIsClippedToOutline = revealView.getClipToOutline();
+                mOldOutlineProvider = revealView.getOutlineProvider();
+
                 revealView.setOutlineProvider(RevealOutlineAnimation.this);
                 revealView.setClipToOutline(true);
                 if (shouldRemoveElevationDuringAnimation()) {
@@ -55,8 +56,8 @@
 
             public void onAnimationEnd(Animator animation) {
                 if (!mWasCanceled) {
-                    revealView.setOutlineProvider(ViewOutlineProvider.BACKGROUND);
-                    revealView.setClipToOutline(false);
+                    revealView.setOutlineProvider(mOldOutlineProvider);
+                    revealView.setClipToOutline(mIsClippedToOutline);
                     if (shouldRemoveElevationDuringAnimation()) {
                         revealView.setTranslationZ(0);
                     }
diff --git a/src/com/android/launcher3/anim/RoundedRectRevealOutlineProvider.java b/src/com/android/launcher3/anim/RoundedRectRevealOutlineProvider.java
index d01b26c..9c09477 100644
--- a/src/com/android/launcher3/anim/RoundedRectRevealOutlineProvider.java
+++ b/src/com/android/launcher3/anim/RoundedRectRevealOutlineProvider.java
@@ -18,11 +18,6 @@
 
 import android.graphics.Rect;
 
-import com.android.launcher3.popup.PopupContainerWithArrow;
-
-import static com.android.launcher3.popup.PopupContainerWithArrow.ROUNDED_BOTTOM_CORNERS;
-import static com.android.launcher3.popup.PopupContainerWithArrow.ROUNDED_TOP_CORNERS;
-
 /**
  * A {@link RevealOutlineAnimation} that provides an outline that interpolates between two radii
  * and two {@link Rect}s.
@@ -37,21 +32,12 @@
     private final Rect mStartRect;
     private final Rect mEndRect;
 
-    private final @PopupContainerWithArrow.RoundedCornerFlags int mRoundedCorners;
-
     public RoundedRectRevealOutlineProvider(float startRadius, float endRadius, Rect startRect,
             Rect endRect) {
-        this(startRadius, endRadius, startRect, endRect,
-                ROUNDED_TOP_CORNERS | ROUNDED_BOTTOM_CORNERS);
-    }
-
-    public RoundedRectRevealOutlineProvider(float startRadius, float endRadius, Rect startRect,
-            Rect endRect, int roundedCorners) {
         mStartRadius = startRadius;
         mEndRadius = endRadius;
         mStartRect = startRect;
         mEndRect = endRect;
-        mRoundedCorners = roundedCorners;
     }
 
     @Override
@@ -65,13 +51,7 @@
 
         mOutline.left = (int) ((1 - progress) * mStartRect.left + progress * mEndRect.left);
         mOutline.top = (int) ((1 - progress) * mStartRect.top + progress * mEndRect.top);
-        if ((mRoundedCorners & ROUNDED_TOP_CORNERS) == 0) {
-            mOutline.top -= mOutlineRadius;
-        }
         mOutline.right = (int) ((1 - progress) * mStartRect.right + progress * mEndRect.right);
         mOutline.bottom = (int) ((1 - progress) * mStartRect.bottom + progress * mEndRect.bottom);
-        if ((mRoundedCorners & ROUNDED_BOTTOM_CORNERS) == 0) {
-            mOutline.bottom += mOutlineRadius;
-        }
     }
 }
diff --git a/src/com/android/launcher3/anim/SpringAnimationHandler.java b/src/com/android/launcher3/anim/SpringAnimationHandler.java
index eec3a48..29a2430 100644
--- a/src/com/android/launcher3/anim/SpringAnimationHandler.java
+++ b/src/com/android/launcher3/anim/SpringAnimationHandler.java
@@ -83,6 +83,10 @@
         mAnimations.add(spring);
     }
 
+    public AnimationFactory<T> getFactory() {
+        return mAnimationFactory;
+    }
+
     /**
      * Adds a new or recycled animation to the list of springs handled by this class.
      *
diff --git a/src/com/android/launcher3/badge/BadgeRenderer.java b/src/com/android/launcher3/badge/BadgeRenderer.java
index c2cc215..6ce334e 100644
--- a/src/com/android/launcher3/badge/BadgeRenderer.java
+++ b/src/com/android/launcher3/badge/BadgeRenderer.java
@@ -26,6 +26,7 @@
 import android.graphics.Rect;
 import android.graphics.Shader;
 import android.support.annotation.Nullable;
+import android.util.Log;
 import android.util.SparseArray;
 
 import com.android.launcher3.R;
@@ -38,6 +39,8 @@
  */
 public class BadgeRenderer {
 
+    private static final String TAG = "BadgeRenderer";
+
     private static final boolean DOTS_ONLY = true;
 
     // The badge sizes are defined as percentages of the app icon size.
@@ -95,6 +98,10 @@
      */
     public void draw(Canvas canvas, IconPalette palette, @Nullable BadgeInfo badgeInfo,
             Rect iconBounds, float badgeScale, Point spaceForOffset) {
+        if (palette == null || iconBounds == null || spaceForOffset == null) {
+            Log.e(TAG, "Invalid null argument(s) passed in call to draw.");
+            return;
+        }
         mTextPaint.setColor(palette.textColor);
         IconDrawer iconDrawer = badgeInfo != null && badgeInfo.isIconLarge()
                 ? mLargeIconDrawer : mSmallIconDrawer;
diff --git a/src/com/android/launcher3/config/BaseFlags.java b/src/com/android/launcher3/config/BaseFlags.java
index 8a1bc63..1924710 100644
--- a/src/com/android/launcher3/config/BaseFlags.java
+++ b/src/com/android/launcher3/config/BaseFlags.java
@@ -29,14 +29,12 @@
     BaseFlags() {}
 
     public static final boolean IS_DOGFOOD_BUILD = false;
+    public static final String AUTHORITY = "com.android.launcher3.settings".intern();
 
     // Custom flags go below this
     public static boolean LAUNCHER3_DISABLE_ICON_NORMALIZATION = false;
-    public static boolean LAUNCHER3_DISABLE_PINCH_TO_OVERVIEW = false;
     // When enabled allows to use any point on the fast scrollbar to start dragging.
     public static final boolean LAUNCHER3_DIRECT_SCROLL = true;
-    // When enabled while all-apps open, the soft input will be set to adjust resize .
-    public static final boolean LAUNCHER3_UPDATE_SOFT_INPUT_MODE = false;
     // When enabled the promise icon is visible in all apps while installation an app.
     public static final boolean LAUNCHER3_PROMISE_APPS_IN_ALL_APPS = false;
     // When enabled allows use of physics based motions in the Launcher.
@@ -60,4 +58,7 @@
 
     // Features to control Launcher3Go behavior
     public static final boolean GO_DISABLE_WIDGETS = false;
+
+    // When enabled shows a work profile tab in all apps
+    public static final boolean ALL_APPS_TABS_ENABLED = false;
 }
diff --git a/src/com/android/launcher3/discovery/AppDiscoveryAppInfo.java b/src/com/android/launcher3/discovery/AppDiscoveryAppInfo.java
index 06493b2..ed5cfeb 100644
--- a/src/com/android/launcher3/discovery/AppDiscoveryAppInfo.java
+++ b/src/com/android/launcher3/discovery/AppDiscoveryAppInfo.java
@@ -41,7 +41,6 @@
         this.intent = item.isInstantApp ? item.launchIntent : item.installIntent;
         this.title = item.title;
         this.iconBitmap = item.bitmap;
-        this.isDisabled = ShortcutInfo.DEFAULT;
         this.usingLowResIcon = false;
         this.isInstantApp = item.isInstantApp;
         this.isRecent = item.isRecent;
diff --git a/src/com/android/launcher3/dragndrop/AddItemActivity.java b/src/com/android/launcher3/dragndrop/AddItemActivity.java
index c843e72..db199c1 100644
--- a/src/com/android/launcher3/dragndrop/AddItemActivity.java
+++ b/src/com/android/launcher3/dragndrop/AddItemActivity.java
@@ -147,11 +147,12 @@
         // Start home and pass the draw request params
         PinItemDragListener listener = new PinItemDragListener(mRequest, bounds,
                 img.getBitmap().getWidth(), img.getWidth());
-        Intent homeIntent = new Intent(Intent.ACTION_MAIN)
-                .addCategory(Intent.CATEGORY_HOME)
-                .setPackage(getPackageName())
-                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-                .putExtra(PinItemDragListener.EXTRA_PIN_ITEM_DRAG_LISTENER, listener);
+
+        Intent homeIntent = listener.addToIntent(
+                new Intent(Intent.ACTION_MAIN)
+                        .addCategory(Intent.CATEGORY_HOME)
+                        .setPackage(getPackageName())
+                        .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
 
         if (!getResources().getBoolean(R.bool.allow_rotation) &&
                 !Utilities.isAllowRotationPrefEnabled(this) &&
diff --git a/src/com/android/launcher3/dragndrop/BaseItemDragListener.java b/src/com/android/launcher3/dragndrop/BaseItemDragListener.java
index 96aaee0..4629dad 100644
--- a/src/com/android/launcher3/dragndrop/BaseItemDragListener.java
+++ b/src/com/android/launcher3/dragndrop/BaseItemDragListener.java
@@ -16,22 +16,25 @@
 
 package com.android.launcher3.dragndrop;
 
+import static com.android.launcher3.LauncherState.NORMAL;
+
 import android.content.ClipDescription;
 import android.content.Intent;
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.os.Handler;
 import android.os.Looper;
-import android.os.Parcel;
 import android.os.SystemClock;
 import android.util.Log;
 import android.view.DragEvent;
 import android.view.View;
 
+import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.DragSource;
 import com.android.launcher3.DropTarget.DragObject;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
+import com.android.launcher3.states.InternalStateHandler;
 import com.android.launcher3.widget.PendingItemDragHelper;
 
 import java.util.UUID;
@@ -39,7 +42,7 @@
 /**
  * {@link DragSource} for handling drop from a different window.
  */
-public abstract class BaseItemDragListener implements
+public abstract class BaseItemDragListener extends InternalStateHandler implements
         View.OnDragListener, DragSource, DragOptions.PreDragCondition {
 
     private static final String TAG = "BaseItemDragListener";
@@ -67,25 +70,16 @@
         mId = UUID.randomUUID().toString();
     }
 
-    protected BaseItemDragListener(Parcel parcel) {
-        mPreviewRect = Rect.CREATOR.createFromParcel(parcel);
-        mPreviewBitmapWidth = parcel.readInt();
-        mPreviewViewWidth = parcel.readInt();
-        mId = parcel.readString();
-    }
-
-    protected void writeToParcel(Parcel parcel, int i) {
-        mPreviewRect.writeToParcel(parcel, i);
-        parcel.writeInt(mPreviewBitmapWidth);
-        parcel.writeInt(mPreviewViewWidth);
-        parcel.writeString(mId);
-    }
-
     public String getMimeType() {
         return MIME_TYPE_PREFIX + mId;
     }
 
-    public void setLauncher(Launcher launcher) {
+    @Override
+    public void init(Launcher launcher, boolean alreadyOnHome) {
+        AbstractFloatingView.closeAllOpenViews(launcher, alreadyOnHome);
+        launcher.getStateManager().goToState(NORMAL, alreadyOnHome /* animated */);
+        launcher.getDragLayer().setOnDragListener(this);
+
         mLauncher = launcher;
         mDragController = launcher.getDragController();
     }
@@ -182,4 +176,7 @@
             mLauncher.getDragLayer().setOnDragListener(null);
         }
     }
+
+    @Override
+    public void onLauncherResume() { }
 }
diff --git a/src/com/android/launcher3/dragndrop/DragController.java b/src/com/android/launcher3/dragndrop/DragController.java
index 10bd67d..818cea7 100644
--- a/src/com/android/launcher3/dragndrop/DragController.java
+++ b/src/com/android/launcher3/dragndrop/DragController.java
@@ -17,6 +17,7 @@
 package com.android.launcher3.dragndrop;
 
 import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY;
+import static com.android.launcher3.LauncherState.NORMAL;
 
 import android.content.ComponentName;
 import android.content.res.Resources;
@@ -263,7 +264,7 @@
         if (!accepted) {
             // If it was not accepted, cleanup the state. If it was accepted, it is the
             // responsibility of the drop target to cleanup the state.
-            mLauncher.exitSpringLoadedDragMode(SPRING_LOADED_EXIT_DELAY);
+            mLauncher.getStateManager().goToState(NORMAL, SPRING_LOADED_EXIT_DELAY);
             mDragObject.deferDragViewCleanupPostAnimation = false;
         }
 
@@ -604,29 +605,32 @@
     }
 
     private DropTarget findDropTarget(int x, int y, int[] dropCoordinates) {
-        final Rect r = mRectTemp;
+        mDragObject.x = x;
+        mDragObject.y = y;
 
+        final Rect r = mRectTemp;
         final ArrayList<DropTarget> dropTargets = mDropTargets;
         final int count = dropTargets.size();
-        for (int i=count-1; i>=0; i--) {
+        for (int i = count - 1; i >= 0; i--) {
             DropTarget target = dropTargets.get(i);
             if (!target.isDropEnabled())
                 continue;
 
             target.getHitRectRelativeToDragLayer(r);
-
-            mDragObject.x = x;
-            mDragObject.y = y;
             if (r.contains(x, y)) {
-
                 dropCoordinates[0] = x;
                 dropCoordinates[1] = y;
                 mLauncher.getDragLayer().mapCoordInSelfToDescendant((View) target, dropCoordinates);
-
                 return target;
             }
         }
-        return null;
+        // Pass all unhandled drag to workspace. Workspace finds the correct
+        // cell layout to drop to in the existing drag/drop logic.
+        dropCoordinates[0] = x;
+        dropCoordinates[1] = y;
+        mLauncher.getDragLayer().mapCoordInSelfToDescendant(mLauncher.getWorkspace(),
+                dropCoordinates);
+        return mLauncher.getWorkspace();
     }
 
     public void setWindowToken(IBinder token) {
diff --git a/src/com/android/launcher3/dragndrop/DragLayer.java b/src/com/android/launcher3/dragndrop/DragLayer.java
index bc5aafc..9f9822c 100644
--- a/src/com/android/launcher3/dragndrop/DragLayer.java
+++ b/src/com/android/launcher3/dragndrop/DragLayer.java
@@ -33,7 +33,6 @@
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityManager;
-import android.view.animation.DecelerateInterpolator;
 import android.view.animation.Interpolator;
 import android.widget.FrameLayout;
 import android.widget.TextView;
@@ -43,15 +42,15 @@
 import com.android.launcher3.DropTargetBar;
 import com.android.launcher3.InsettableFrameLayout;
 import com.android.launcher3.Launcher;
-import com.android.launcher3.PinchToOverviewListener;
 import com.android.launcher3.R;
 import com.android.launcher3.ShortcutAndWidgetContainer;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.allapps.AllAppsTransitionController;
-import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.folder.Folder;
 import com.android.launcher3.folder.FolderIcon;
 import com.android.launcher3.keyboard.ViewGroupFocusHelper;
+import com.android.launcher3.uioverrides.UiFactory;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.util.Thunk;
 import com.android.launcher3.util.TouchController;
@@ -74,7 +73,7 @@
 
     // Variables relating to animation of views after drop
     private ValueAnimator mDropAnim = null;
-    private final TimeInterpolator mCubicEaseOutInterpolator = new DecelerateInterpolator(1.5f);
+    private final TimeInterpolator mCubicEaseOutInterpolator = Interpolators.DEACCEL_1_5;
     @Thunk DragView mDropView = null;
     @Thunk int mAnchorViewInitialScrollX = 0;
     @Thunk View mAnchorView = null;
@@ -91,12 +90,10 @@
     private final ViewGroupFocusHelper mFocusIndicatorHelper;
     private final PageCutOutScrimDrawable mPageCutOutScrim;
 
-    // Related to pinch-to-go-to-overview gesture.
-    private PinchToOverviewListener mPinchListener = null;
-
     // Handles all apps pull up interaction
     private AllAppsTransitionController mAllAppsController;
 
+    protected TouchController[] mControllers;
     private TouchController mActiveController;
     /**
      * Used to create a new DragLayer from XML.
@@ -121,10 +118,7 @@
         mLauncher = launcher;
         mDragController = dragController;
         mAllAppsController = allAppsTransitionController;
-
-        boolean isAccessibilityEnabled = ((AccessibilityManager) mLauncher.getSystemService(
-                Context.ACCESSIBILITY_SERVICE)).isEnabled();
-        onAccessibilityStateChanged(isAccessibilityEnabled);
+        mControllers = UiFactory.createTouchControllers(mLauncher);
     }
 
     public ViewGroupFocusHelper getFocusIndicatorHelper() {
@@ -141,11 +135,6 @@
         return super.verifyDrawable(who) || who == mPageCutOutScrim;
     }
 
-    public void onAccessibilityStateChanged(boolean isAccessibilityEnabled) {
-        mPinchListener = FeatureFlags.LAUNCHER3_DISABLE_PINCH_TO_OVERVIEW || isAccessibilityEnabled
-                ? null : new PinchToOverviewListener(mLauncher);
-    }
-
     public boolean isEventOverHotseat(MotionEvent ev) {
         return isEventOverView(mLauncher.getHotseat(), ev);
     }
@@ -191,15 +180,11 @@
             return true;
         }
 
-        if (mAllAppsController.onControllerInterceptTouchEvent(ev)) {
-            mActiveController = mAllAppsController;
-            return true;
-        }
-
-        if (mPinchListener != null && mPinchListener.onControllerInterceptTouchEvent(ev)) {
-            // Stop listening for scrolling etc. (onTouchEvent() handles the rest of the pinch.)
-            mActiveController = mPinchListener;
-            return true;
+        for (TouchController controller : mControllers) {
+            if (controller.onControllerInterceptTouchEvent(ev)) {
+                mActiveController = controller;
+                return true;
+            }
         }
         return false;
     }
@@ -718,13 +703,14 @@
     }
 
     @Override
-    public void onChildViewAdded(View parent, View child) {
-        super.onChildViewAdded(parent, child);
+    public void onViewAdded(View child) {
+        super.onViewAdded(child);
         updateChildIndices();
     }
 
     @Override
-    public void onChildViewRemoved(View parent, View child) {
+    public void onViewRemoved(View child) {
+        super.onViewRemoved(child);
         updateChildIndices();
     }
 
diff --git a/src/com/android/launcher3/dragndrop/DragView.java b/src/com/android/launcher3/dragndrop/DragView.java
index 17fad84..7c89df3 100644
--- a/src/com/android/launcher3/dragndrop/DragView.java
+++ b/src/com/android/launcher3/dragndrop/DragView.java
@@ -43,7 +43,6 @@
 import android.support.animation.SpringAnimation;
 import android.support.animation.SpringForce;
 import android.view.View;
-import android.view.animation.DecelerateInterpolator;
 
 import com.android.launcher3.FastBitmapDrawable;
 import com.android.launcher3.ItemInfo;
@@ -54,6 +53,7 @@
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.ShortcutConfigActivityInfo;
 import com.android.launcher3.config.FeatureFlags;
@@ -472,7 +472,7 @@
     public void crossFade(int duration) {
         ValueAnimator va = LauncherAnimUtils.ofFloat(0f, 1f);
         va.setDuration(duration);
-        va.setInterpolator(new DecelerateInterpolator(1.5f));
+        va.setInterpolator(Interpolators.DEACCEL_1_5);
         va.addUpdateListener(new AnimatorUpdateListener() {
             @Override
             public void onAnimationUpdate(ValueAnimator animation) {
diff --git a/src/com/android/launcher3/dragndrop/PinItemDragListener.java b/src/com/android/launcher3/dragndrop/PinItemDragListener.java
index b9d97ac..924bb4c 100644
--- a/src/com/android/launcher3/dragndrop/PinItemDragListener.java
+++ b/src/com/android/launcher3/dragndrop/PinItemDragListener.java
@@ -18,23 +18,18 @@
 
 import android.annotation.TargetApi;
 import android.appwidget.AppWidgetManager;
-import android.content.Intent;
 import android.content.pm.LauncherApps.PinItemRequest;
 import android.graphics.Rect;
 import android.os.Build;
 import android.os.Bundle;
-import android.os.Parcel;
-import android.os.Parcelable;
 import android.view.DragEvent;
 import android.view.View;
 import android.widget.RemoteViews;
 
 import com.android.launcher3.DragSource;
 import com.android.launcher3.ItemInfo;
-import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherAppWidgetProviderInfo;
 import com.android.launcher3.PendingAddItemInfo;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.widget.PendingAddShortcutInfo;
 import com.android.launcher3.widget.PendingAddWidgetInfo;
@@ -46,9 +41,7 @@
  * in the source window and is passed on to the Launcher activity as an Intent extra.
  */
 @TargetApi(Build.VERSION_CODES.O)
-public class PinItemDragListener extends BaseItemDragListener implements Parcelable {
-
-    public static final String EXTRA_PIN_ITEM_DRAG_LISTENER = "pin_item_drag_listener";
+public class PinItemDragListener extends BaseItemDragListener {
 
     private final PinItemRequest mRequest;
 
@@ -58,22 +51,6 @@
         mRequest = request;
     }
 
-    private PinItemDragListener(Parcel parcel) {
-        super(parcel);
-        mRequest = PinItemRequest.CREATOR.createFromParcel(parcel);
-    }
-
-    @Override
-    public int describeContents() {
-        return 0;
-    }
-
-    @Override
-    public void writeToParcel(Parcel parcel, int i) {
-        super.writeToParcel(parcel, i);
-        mRequest.writeToParcel(parcel, i);
-    }
-
     @Override
     protected boolean onDragStart(DragEvent event) {
         if (!mRequest.isValid()) {
@@ -126,33 +103,4 @@
         }
         return null;
     }
-
-    public static boolean handleDragRequest(Launcher launcher, Intent intent) {
-        if (!Utilities.ATLEAST_OREO) {
-            return false;
-        }
-        if (intent == null || !Intent.ACTION_MAIN.equals(intent.getAction())) {
-            return false;
-        }
-        Parcelable dragExtra = intent.getParcelableExtra(EXTRA_PIN_ITEM_DRAG_LISTENER);
-        if (dragExtra instanceof PinItemDragListener) {
-            PinItemDragListener dragListener = (PinItemDragListener) dragExtra;
-            dragListener.setLauncher(launcher);
-
-            launcher.getDragLayer().setOnDragListener(dragListener);
-            return true;
-        }
-        return false;
-    }
-
-    public static final Parcelable.Creator<PinItemDragListener> CREATOR =
-            new Parcelable.Creator<PinItemDragListener>() {
-                public PinItemDragListener createFromParcel(Parcel source) {
-                    return new PinItemDragListener(source);
-                }
-
-                public PinItemDragListener[] newArray(int size) {
-                    return new PinItemDragListener[size];
-                }
-            };
 }
diff --git a/src/com/android/launcher3/folder/Folder.java b/src/com/android/launcher3/folder/Folder.java
index fcc4f0e..2168001 100644
--- a/src/com/android/launcher3/folder/Folder.java
+++ b/src/com/android/launcher3/folder/Folder.java
@@ -17,6 +17,7 @@
 package com.android.launcher3.folder;
 
 import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY;
+import static com.android.launcher3.LauncherState.NORMAL;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -1243,7 +1244,7 @@
             mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher.getModelWriter());
         }
 
-        mLauncher.exitSpringLoadedDragMode(SPRING_LOADED_EXIT_DELAY);
+        mLauncher.getStateManager().goToState(NORMAL, SPRING_LOADED_EXIT_DELAY);
         if (d.stateAnnouncer != null) {
             d.stateAnnouncer.completeAction(R.string.item_moved);
         }
diff --git a/src/com/android/launcher3/folder/FolderIcon.java b/src/com/android/launcher3/folder/FolderIcon.java
index 900781c..5983029 100644
--- a/src/com/android/launcher3/folder/FolderIcon.java
+++ b/src/com/android/launcher3/folder/FolderIcon.java
@@ -16,6 +16,9 @@
 
 package com.android.launcher3.folder;
 
+import static com.android.launcher3.folder.ClippedFolderIconLayoutRule.MAX_NUM_ITEMS_IN_PREVIEW;
+import static com.android.launcher3.folder.PreviewItemManager.INITIAL_ITEM_ANIMATION_DURATION;
+
 import android.animation.Animator;
 import android.animation.ObjectAnimator;
 import android.content.Context;
@@ -33,8 +36,6 @@
 import android.view.View;
 import android.view.ViewConfiguration;
 import android.view.ViewGroup;
-import android.view.animation.AccelerateInterpolator;
-import android.view.animation.DecelerateInterpolator;
 import android.widget.FrameLayout;
 
 import com.android.launcher3.Alarm;
@@ -56,6 +57,7 @@
 import com.android.launcher3.StylusEventHelper;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.Workspace;
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.badge.BadgeRenderer;
 import com.android.launcher3.badge.FolderBadgeInfo;
 import com.android.launcher3.dragndrop.BaseItemDragListener;
@@ -68,9 +70,6 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import static com.android.launcher3.folder.ClippedFolderIconLayoutRule.MAX_NUM_ITEMS_IN_PREVIEW;
-import static com.android.launcher3.folder.PreviewItemManager.INITIAL_ITEM_ANIMATION_DURATION;
-
 /**
  * An icon that can appear on in the workspace representing an {@link Folder}.
  */
@@ -350,7 +349,7 @@
             float finalScale = scale * scaleRelativeToDragLayer;
             dragLayer.animateView(animateView, from, to, finalAlpha,
                     1, 1, finalScale, finalScale, DROP_IN_ANIMATION_DURATION,
-                    new DecelerateInterpolator(2), new AccelerateInterpolator(2),
+                    Interpolators.DEACCEL_2, Interpolators.ACCEL_2,
                     null, DragLayer.ANIMATION_END_DISAPPEAR, null);
 
             mFolder.hideItem(item);
diff --git a/src/com/android/launcher3/folder/FolderPagedView.java b/src/com/android/launcher3/folder/FolderPagedView.java
index f4ac0a1..9e5bc4f 100644
--- a/src/com/android/launcher3/folder/FolderPagedView.java
+++ b/src/com/android/launcher3/folder/FolderPagedView.java
@@ -27,7 +27,6 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewDebug;
-import android.view.animation.DecelerateInterpolator;
 
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.CellLayout;
@@ -43,6 +42,7 @@
 import com.android.launcher3.ShortcutInfo;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.Workspace.ItemOperator;
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.keyboard.ViewGroupFocusHelper;
 import com.android.launcher3.pageindicators.PageIndicator;
 import com.android.launcher3.util.Thunk;
@@ -511,7 +511,7 @@
         int scroll = getScrollForPage(getNextPage()) + hint;
         int delta = scroll - getScrollX();
         if (delta != 0) {
-            mScroller.setInterpolator(new DecelerateInterpolator());
+            mScroller.setInterpolator(Interpolators.DEACCEL);
             mScroller.startScroll(getScrollX(), 0, delta, 0, Folder.SCROLL_HINT_DURATION);
             invalidate();
         }
diff --git a/src/com/android/launcher3/graphics/GradientView.java b/src/com/android/launcher3/graphics/GradientView.java
index 5455b43..bacb063 100644
--- a/src/com/android/launcher3/graphics/GradientView.java
+++ b/src/com/android/launcher3/graphics/GradientView.java
@@ -29,12 +29,12 @@
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
 import android.view.View;
-import android.view.animation.AccelerateInterpolator;
 import android.view.animation.Interpolator;
 
 import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.dynamicui.WallpaperColorInfo;
 import com.android.launcher3.util.Themes;
 
@@ -64,7 +64,7 @@
     private final int mMaskHeight, mMaskWidth;
     private final int mAlphaColors;
     private final Paint mDebugPaint = DEBUG ? new Paint() : null;
-    private final Interpolator mAccelerator = new AccelerateInterpolator();
+    private final Interpolator mAccelerator = Interpolators.ACCEL;
     private final float mAlphaStart;
     private final WallpaperColorInfo mWallpaperColorInfo;
     private final int mScrimColor;
diff --git a/src/com/android/launcher3/graphics/HolographicOutlineHelper.java b/src/com/android/launcher3/graphics/HolographicOutlineHelper.java
index 9e67f56..fdf2d67 100644
--- a/src/com/android/launcher3/graphics/HolographicOutlineHelper.java
+++ b/src/com/android/launcher3/graphics/HolographicOutlineHelper.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.graphics;
 
+import static com.android.launcher3.ItemInfoWithIcon.FLAG_ADAPTIVE_ICON;
+
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.BlurMaskFilter;
@@ -29,6 +31,7 @@
 import android.util.SparseArray;
 
 import com.android.launcher3.BubbleTextView;
+import com.android.launcher3.ItemInfoWithIcon;
 import com.android.launcher3.R;
 
 /**
@@ -37,6 +40,12 @@
  */
 public class HolographicOutlineHelper {
 
+    /**
+     * Bitmap used as shadow for Adaptive icons
+     */
+    public static final Bitmap ADAPTIVE_ICON_SHADOW_BITMAP =
+            Bitmap.createBitmap(1, 1, Bitmap.Config.ALPHA_8);
+
     private static HolographicOutlineHelper sInstance;
 
     private final Canvas mCanvas = new Canvas();
@@ -63,6 +72,11 @@
     }
 
     public Bitmap createMediumDropShadow(BubbleTextView view) {
+        if (view.getTag() instanceof ItemInfoWithIcon &&
+                ((((ItemInfoWithIcon) view.getTag()).runtimeStatusFlags & FLAG_ADAPTIVE_ICON)
+                        != 0)) {
+            return ADAPTIVE_ICON_SHADOW_BITMAP;
+        }
         Drawable drawable = view.getIcon();
         if (drawable == null) {
             return null;
@@ -119,7 +133,7 @@
     }
 
     public void recycleShadowBitmap(Bitmap bitmap) {
-        if (bitmap != null) {
+        if (bitmap != null && bitmap != ADAPTIVE_ICON_SHADOW_BITMAP) {
             mBitmapCache.put((bitmap.getWidth() << 16) | bitmap.getHeight(), bitmap);
         }
     }
diff --git a/src/com/android/launcher3/graphics/LauncherIcons.java b/src/com/android/launcher3/graphics/LauncherIcons.java
index d471af6..1eddb2c 100644
--- a/src/com/android/launcher3/graphics/LauncherIcons.java
+++ b/src/com/android/launcher3/graphics/LauncherIcons.java
@@ -72,7 +72,7 @@
         PackageManager packageManager = context.getPackageManager();
         // the resource
         try {
-            Resources resources = packageManager.getResourcesForApplication(iconRes.resourceName);
+            Resources resources = packageManager.getResourcesForApplication(iconRes.packageName);
             if (resources != null) {
                 final int id = resources.getIdentifier(iconRes.resourceName, null, null);
                 // do not stamp old legacy shortcuts as the app may have already forgotten about it
diff --git a/src/com/android/launcher3/graphics/PreloadIconDrawable.java b/src/com/android/launcher3/graphics/PreloadIconDrawable.java
index 06dc7ac..6d486ee 100644
--- a/src/com/android/launcher3/graphics/PreloadIconDrawable.java
+++ b/src/com/android/launcher3/graphics/PreloadIconDrawable.java
@@ -30,9 +30,9 @@
 import android.graphics.Rect;
 import android.util.Property;
 import android.util.SparseArray;
-import android.view.animation.LinearInterpolator;
 
 import com.android.launcher3.FastBitmapDrawable;
+import com.android.launcher3.anim.Interpolators;
 
 import java.lang.ref.WeakReference;
 
@@ -226,7 +226,7 @@
             mCurrentAnim = ObjectAnimator.ofFloat(this, INTERNAL_STATE, finalProgress);
             mCurrentAnim.setDuration(
                     (long) ((finalProgress - mInternalStateProgress) * DURATION_SCALE));
-            mCurrentAnim.setInterpolator(new LinearInterpolator());
+            mCurrentAnim.setInterpolator(Interpolators.LINEAR);
             if (isFinish) {
                 mCurrentAnim.addListener(new AnimatorListenerAdapter() {
                     @Override
@@ -237,7 +237,6 @@
             }
             mCurrentAnim.start();
         }
-
     }
 
     /**
diff --git a/src/com/android/launcher3/keyboard/CustomActionsPopup.java b/src/com/android/launcher3/keyboard/CustomActionsPopup.java
index 150522e..938955c 100644
--- a/src/com/android/launcher3/keyboard/CustomActionsPopup.java
+++ b/src/com/android/launcher3/keyboard/CustomActionsPopup.java
@@ -27,7 +27,7 @@
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
-import com.android.launcher3.popup.BaseActionPopup;
+import com.android.launcher3.popup.PopupContainerWithArrow;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -46,7 +46,7 @@
     public CustomActionsPopup(Launcher launcher, View icon) {
         mLauncher = launcher;
         mIcon = icon;
-        BaseActionPopup container = BaseActionPopup.getOpen(launcher);
+        PopupContainerWithArrow container = PopupContainerWithArrow.getOpen(launcher);
         if (container != null) {
             mDelegate = container.getAccessibilityDelegate();
         } else {
diff --git a/src/com/android/launcher3/logging/LoggerUtils.java b/src/com/android/launcher3/logging/LoggerUtils.java
index 81333b1..00ee009 100644
--- a/src/com/android/launcher3/logging/LoggerUtils.java
+++ b/src/com/android/launcher3/logging/LoggerUtils.java
@@ -91,7 +91,8 @@
                 return getFieldName(t.controlType, ControlType.class);
             case Target.Type.CONTAINER:
                 String str = getFieldName(t.containerType, ContainerType.class);
-                if (t.containerType == ContainerType.WORKSPACE) {
+                if (t.containerType == ContainerType.WORKSPACE ||
+                        t.containerType == ContainerType.HOTSEAT) {
                     str += " id=" + t.pageIndex;
                 } else if (t.containerType == ContainerType.FOLDER) {
                     str += " grid(" + t.gridX + "," + t.gridY+ ")";
@@ -105,13 +106,16 @@
     private static String getItemStr(Target t) {
         String typeStr = getFieldName(t.itemType, ItemType.class);
         if (t.packageNameHash != 0) {
-            typeStr += ", packageHash=" + t.packageNameHash + ", predictiveRank=" + t.predictedRank;
+            typeStr += ", packageHash=" + t.packageNameHash;
         }
         if (t.componentHash != 0) {
-            typeStr += ", componentHash=" + t.componentHash + ", predictiveRank=" + t.predictedRank;
+            typeStr += ", componentHash=" + t.componentHash;
         }
         if (t.intentHash != 0) {
-            typeStr += ", intentHash=" + t.intentHash + ", predictiveRank=" + t.predictedRank;
+            typeStr += ", intentHash=" + t.intentHash;
+        }
+        if (t.packageNameHash != 0 || t.componentHash != 0 || t.intentHash != 0) {
+            typeStr += ", predictiveRank=" + t.predictedRank;
         }
         return typeStr + ", grid(" + t.gridX + "," + t.gridY + "), span(" + t.spanX + "," + t.spanY
                 + "), pageIdx=" + t.pageIndex;
diff --git a/src/com/android/launcher3/logging/UserEventDispatcher.java b/src/com/android/launcher3/logging/UserEventDispatcher.java
index 1a6dade..243dbea 100644
--- a/src/com/android/launcher3/logging/UserEventDispatcher.java
+++ b/src/com/android/launcher3/logging/UserEventDispatcher.java
@@ -232,6 +232,10 @@
         event.action.dir = dir;
         event.srcTarget[0].pageIndex = pageIndex;
         dispatchUserEvent(event, null);
+
+        if (action == Action.Touch.SWIPE) {
+            resetElapsedContainerMillis();
+        }
     }
 
     public void logActionOnItem(int action, int dir, int itemType) {
@@ -323,6 +327,7 @@
                 ev.actionDurationMillis);
         log += "\n isInLandscapeMode " + ev.isInLandscapeMode;
         log += "\n isInMultiWindowMode " + ev.isInMultiWindowMode;
+        log += "\n";
         Log.d(TAG, log);
     }
 
diff --git a/src/com/android/launcher3/model/LoaderCursor.java b/src/com/android/launcher3/model/LoaderCursor.java
index bc7da9b..ccef9b7 100644
--- a/src/com/android/launcher3/model/LoaderCursor.java
+++ b/src/com/android/launcher3/model/LoaderCursor.java
@@ -32,6 +32,7 @@
 import android.util.Log;
 import android.util.LongSparseArray;
 
+import com.android.launcher3.AppInfo;
 import com.android.launcher3.IconCache;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.ItemInfo;
@@ -48,7 +49,6 @@
 import com.android.launcher3.util.ContentWriter;
 import com.android.launcher3.util.GridOccupancy;
 import com.android.launcher3.util.LongArrayMap;
-import com.android.launcher3.util.PackageManagerHelper;
 
 import java.net.URISyntaxException;
 import java.security.InvalidParameterException;
@@ -202,7 +202,6 @@
         return TextUtils.isEmpty(title) ? "" : Utilities.trim(title);
     }
 
-
     /**
      * Make an ShortcutInfo object for a restored application or shortcut item that points
      * to a package that is not yet installed on the system.
@@ -274,8 +273,8 @@
             info.iconBitmap = icon != null ? icon : info.iconBitmap;
         }
 
-        if (lai != null && PackageManagerHelper.isAppSuspended(lai.getApplicationInfo())) {
-            info.isDisabled = ShortcutInfo.FLAG_DISABLED_SUSPENDED;
+        if (lai != null) {
+            AppInfo.updateRuntimeFlagsForActivityTarget(info, lai);
         }
 
         // from the db
diff --git a/src/com/android/launcher3/model/LoaderTask.java b/src/com/android/launcher3/model/LoaderTask.java
index 5386fb4..310416f 100644
--- a/src/com/android/launcher3/model/LoaderTask.java
+++ b/src/com/android/launcher3/model/LoaderTask.java
@@ -25,10 +25,9 @@
 import android.content.pm.LauncherActivityInfo;
 import android.content.pm.PackageInstaller;
 import android.graphics.Bitmap;
+import android.graphics.drawable.AdaptiveIconDrawable;
 import android.os.Handler;
 import android.os.Process;
-import android.os.SystemClock;
-import android.os.Trace;
 import android.os.UserHandle;
 import android.text.TextUtils;
 import android.util.Log;
@@ -37,6 +36,7 @@
 
 import com.android.launcher3.AllAppsList;
 import com.android.launcher3.AppInfo;
+import com.android.launcher3.ClickShadowView;
 import com.android.launcher3.FolderInfo;
 import com.android.launcher3.IconCache;
 import com.android.launcher3.InstallShortcutReceiver;
@@ -54,6 +54,7 @@
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.folder.Folder;
 import com.android.launcher3.folder.FolderIconPreviewVerifier;
+import com.android.launcher3.graphics.IconNormalizer;
 import com.android.launcher3.graphics.LauncherIcons;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.provider.ImportDataTask;
@@ -76,6 +77,9 @@
 import java.util.Map;
 import java.util.concurrent.CancellationException;
 
+import static com.android.launcher3.ItemInfoWithIcon.FLAG_DISABLED_LOCKED_USER;
+import static com.android.launcher3.ItemInfoWithIcon.FLAG_DISABLED_SAFEMODE;
+import static com.android.launcher3.ItemInfoWithIcon.FLAG_DISABLED_SUSPENDED;
 import static com.android.launcher3.folder.ClippedFolderIconLayoutRule.MAX_NUM_ITEMS_IN_PREVIEW;
 
 /**
@@ -144,7 +148,9 @@
 
         TraceHelper.beginSection(TAG);
         try (LauncherModel.LoaderTransaction transaction = mApp.getModel().beginLoader(this)) {
-            TraceHelper.partitionSection(TAG, "step 1.1: loading workspace");
+            TraceHelper.partitionSection(TAG, "step 1.1: loading UI resources");
+            loadUiResources();
+            TraceHelper.partitionSection(TAG, "step 1.2: loading workspace");
             loadWorkspace();
 
             verifyNotStopped();
@@ -207,6 +213,14 @@
         this.notify();
     }
 
+    public void loadUiResources() {
+        if (Utilities.ATLEAST_OREO) {
+            ClickShadowView.setAdaptiveIconScaleFactor(
+                    IconNormalizer.getInstance(mApp.getContext()).getScale(
+                            new AdaptiveIconDrawable(null, null), null, null, null));
+        }
+    }
+
     private void loadWorkspace() {
         final Context context = mApp.getContext();
         final ContentResolver contentResolver = context.getContentResolver();
@@ -466,13 +480,13 @@
                                                     true /* badged */, fallbackIconProvider);
                                     if (pmHelper.isAppSuspended(
                                             pinnedShortcut.getPackage(), info.user)) {
-                                        info.isDisabled |= ShortcutInfo.FLAG_DISABLED_SUSPENDED;
+                                        info.runtimeStatusFlags |= FLAG_DISABLED_SUSPENDED;
                                     }
                                     intent = info.intent;
                                 } else {
                                     // Create a shortcut info in disabled mode for now.
                                     info = c.loadSimpleShortcut();
-                                    info.isDisabled |= ShortcutInfo.FLAG_DISABLED_LOCKED_USER;
+                                    info.runtimeStatusFlags |= FLAG_DISABLED_LOCKED_USER;
                                 }
                             } else { // item type == ITEM_TYPE_SHORTCUT
                                 info = c.loadSimpleShortcut();
@@ -480,7 +494,7 @@
                                 // Shortcuts are only available on the primary profile
                                 if (!TextUtils.isEmpty(targetPkg)
                                         && pmHelper.isAppSuspended(targetPkg, c.user)) {
-                                    disabledState |= ShortcutInfo.FLAG_DISABLED_SUSPENDED;
+                                    disabledState |= FLAG_DISABLED_SUSPENDED;
                                 }
 
                                 // App shortcuts that used to be automatically added to Launcher
@@ -503,9 +517,9 @@
                                 info.rank = c.getInt(rankIndex);
                                 info.spanX = 1;
                                 info.spanY = 1;
-                                info.isDisabled |= disabledState;
+                                info.runtimeStatusFlags |= disabledState;
                                 if (isSafeMode && !Utilities.isSystemApp(context, intent)) {
-                                    info.isDisabled |= ShortcutInfo.FLAG_DISABLED_SAFEMODE;
+                                    info.runtimeStatusFlags |= FLAG_DISABLED_SAFEMODE;
                                 }
 
                                 if (c.restoreFlag != 0 && !TextUtils.isEmpty(targetPkg)) {
diff --git a/src/com/android/launcher3/model/PackageUpdatedTask.java b/src/com/android/launcher3/model/PackageUpdatedTask.java
index 53a9862..470dadf 100644
--- a/src/com/android/launcher3/model/PackageUpdatedTask.java
+++ b/src/com/android/launcher3/model/PackageUpdatedTask.java
@@ -244,9 +244,9 @@
                                 infoUpdated = true;
                             }
 
-                            int oldDisabledFlags = si.isDisabled;
-                            si.isDisabled = flagOp.apply(si.isDisabled);
-                            if (si.isDisabled != oldDisabledFlags) {
+                            int oldRuntimeFlags = si.runtimeStatusFlags;
+                            si.runtimeStatusFlags = flagOp.apply(si.runtimeStatusFlags);
+                            if (si.runtimeStatusFlags != oldRuntimeFlags) {
                                 shortcutUpdated = true;
                             }
                         }
diff --git a/src/com/android/launcher3/model/UserLockStateChangedTask.java b/src/com/android/launcher3/model/UserLockStateChangedTask.java
index 8170f9a..2e9ac72 100644
--- a/src/com/android/launcher3/model/UserLockStateChangedTask.java
+++ b/src/com/android/launcher3/model/UserLockStateChangedTask.java
@@ -15,6 +15,8 @@
  */
 package com.android.launcher3.model;
 
+import static com.android.launcher3.ItemInfoWithIcon.FLAG_DISABLED_LOCKED_USER;
+
 import android.content.Context;
 import android.os.UserHandle;
 
@@ -87,12 +89,12 @@
                         removedKeys.add(key);
                         continue;
                     }
-                    si.isDisabled &= ~ShortcutInfo.FLAG_DISABLED_LOCKED_USER;
+                    si.runtimeStatusFlags &= ~FLAG_DISABLED_LOCKED_USER;
                     si.updateFromDeepShortcutInfo(shortcut, context);
                     si.iconBitmap = LauncherIcons.createShortcutIcon(shortcut, context,
                             si.iconBitmap);
                 } else {
-                    si.isDisabled |= ShortcutInfo.FLAG_DISABLED_LOCKED_USER;
+                    si.runtimeStatusFlags |= FLAG_DISABLED_LOCKED_USER;
                 }
                 updatedShortcutInfos.add(si);
             }
diff --git a/src/com/android/launcher3/notification/Interpolators.java b/src/com/android/launcher3/notification/Interpolators.java
deleted file mode 100644
index 5c3b22a..0000000
--- a/src/com/android/launcher3/notification/Interpolators.java
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.launcher3.notification;
-
-import android.view.animation.Interpolator;
-import android.view.animation.PathInterpolator;
-
-/**
- * Utility class to receive interpolators from.
- *
- * This class was copied from com.android.systemui.
- */
-public class Interpolators {
-    public static final Interpolator FAST_OUT_SLOW_IN = new PathInterpolator(0.4f, 0f, 0.2f, 1f);
-    public static final Interpolator FAST_OUT_LINEAR_IN = new PathInterpolator(0.4f, 0f, 1f, 1f);
-    public static final Interpolator LINEAR_OUT_SLOW_IN = new PathInterpolator(0f, 0f, 0.2f, 1f);
-
-    /**
-     * Interpolator to be used when animating a move based on a click. Pair with enough duration.
-     */
-    public static final Interpolator TOUCH_RESPONSE =
-            new PathInterpolator(0.3f, 0f, 0.1f, 1f);
-}
diff --git a/src/com/android/launcher3/notification/NotificationFooterLayout.java b/src/com/android/launcher3/notification/NotificationFooterLayout.java
index 3cf3ff6..1216a27 100644
--- a/src/com/android/launcher3/notification/NotificationFooterLayout.java
+++ b/src/com/android/launcher3/notification/NotificationFooterLayout.java
@@ -23,22 +23,18 @@
 import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.Rect;
-import android.graphics.drawable.ColorDrawable;
 import android.util.AttributeSet;
 import android.view.Gravity;
 import android.view.View;
-import android.view.ViewGroup;
 import android.widget.FrameLayout;
 import android.widget.LinearLayout;
 
-import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherAnimUtils;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.PropertyListBuilder;
 import com.android.launcher3.anim.PropertyResetListener;
-import com.android.launcher3.popup.BaseActionPopup;
-import com.android.launcher3.popup.PopupContainerWithArrow;
+import com.android.launcher3.util.Themes;
 
 import java.util.ArrayList;
 import java.util.Iterator;
@@ -61,11 +57,12 @@
     private final List<NotificationInfo> mNotifications = new ArrayList<>();
     private final List<NotificationInfo> mOverflowNotifications = new ArrayList<>();
     private final boolean mRtl;
+    private final int mBackgroundColor;
 
     FrameLayout.LayoutParams mIconLayoutParams;
     private View mOverflowEllipsis;
     private LinearLayout mIconRow;
-    private int mBackgroundColor;
+    private NotificationItemView mContainer;
 
     public NotificationFooterLayout(Context context) {
         this(context, null, 0);
@@ -93,14 +90,19 @@
         int availableIconRowSpace = footerWidth - paddingEnd - ellipsisSpace
                 - iconSize * MAX_FOOTER_NOTIFICATIONS;
         mIconLayoutParams.setMarginStart(availableIconRowSpace / MAX_FOOTER_NOTIFICATIONS);
+
+        mBackgroundColor = Themes.getAttrColor(context, R.attr.popupColorPrimary);
     }
 
     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
         mOverflowEllipsis = findViewById(R.id.overflow);
-        mIconRow = (LinearLayout) findViewById(R.id.icon_row);
-        mBackgroundColor = ((ColorDrawable) getBackground()).getColor();
+        mIconRow = findViewById(R.id.icon_row);
+    }
+
+    void setContainer(NotificationItemView container) {
+        mContainer = container;
     }
 
     /**
@@ -198,25 +200,8 @@
         updateOverflowEllipsisVisibility();
         if (mIconRow.getChildCount() == 0) {
             // There are no more icons in the footer, so hide it.
-            BaseActionPopup popup = BaseActionPopup.getOpen(
-                    Launcher.getLauncher(getContext()));
-            if (popup instanceof PopupContainerWithArrow) {
-                final int newHeight = getResources().getDimensionPixelSize(
-                        R.dimen.notification_empty_footer_height);
-                Animator collapseFooter = ((PopupContainerWithArrow) popup)
-                        .reduceNotificationViewHeight(getHeight() - newHeight,
-                        getResources().getInteger(R.integer.config_removeNotificationViewDuration));
-                collapseFooter.addListener(new AnimatorListenerAdapter() {
-                    @Override
-                    public void onAnimationEnd(Animator animation) {
-                        ((ViewGroup) getParent()).findViewById(R.id.divider).setVisibility(GONE);
-                        // Keep view around because gutter is aligned to it, but remove height to
-                        // both hide the view and keep calculations correct for last dismissal.
-                        getLayoutParams().height = newHeight;
-                        requestLayout();
-                    }
-                });
-                collapseFooter.start();
+            if (mContainer != null) {
+                mContainer.removeFooter();
             }
         }
     }
diff --git a/src/com/android/launcher3/notification/NotificationItemView.java b/src/com/android/launcher3/notification/NotificationItemView.java
index ab94c32..5bbd19c 100644
--- a/src/com/android/launcher3/notification/NotificationItemView.java
+++ b/src/com/android/launcher3/notification/NotificationItemView.java
@@ -16,117 +16,102 @@
 
 package com.android.launcher3.notification;
 
-import android.animation.Animator;
-import android.animation.AnimatorSet;
-import android.animation.ObjectAnimator;
 import android.app.Notification;
 import android.content.Context;
 import android.graphics.Rect;
 import android.support.annotation.Nullable;
-import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
-import android.widget.FrameLayout;
+import android.view.ViewGroup.MarginLayoutParams;
 import android.widget.TextView;
 
-import com.android.launcher3.ItemInfo;
-import com.android.launcher3.LauncherAnimUtils;
 import com.android.launcher3.R;
-import com.android.launcher3.anim.PropertyResetListener;
-import com.android.launcher3.anim.RoundedRectRevealOutlineProvider;
 import com.android.launcher3.graphics.IconPalette;
-import com.android.launcher3.logging.UserEventDispatcher.LogContainerProvider;
-import com.android.launcher3.popup.PopupItemView;
+import com.android.launcher3.popup.PopupContainerWithArrow;
 import com.android.launcher3.touch.SwipeDetector;
-import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.util.Themes;
 
 import java.util.List;
 
+import static com.android.launcher3.touch.SwipeDetector.HORIZONTAL;
+
 /**
- * A {@link FrameLayout} that contains a header, main view and a footer.
- * The main view contains the icon and text (title + subtext) of the first notification.
- * The footer contains: A list of just the icons of all the notifications past the first one.
- * @see NotificationFooterLayout
+ * Utility class to manage notification UI
  */
-public class NotificationItemView extends PopupItemView implements LogContainerProvider {
+public class NotificationItemView {
 
     private static final Rect sTempRect = new Rect();
 
-    private TextView mHeaderText;
-    private TextView mHeaderCount;
-    private NotificationMainView mMainView;
-    private NotificationFooterLayout mFooter;
-    private SwipeDetector mSwipeDetector;
+    private final Context mContext;
+    private final PopupContainerWithArrow mContainer;
+
+    private final TextView mHeaderText;
+    private final TextView mHeaderCount;
+    private final NotificationMainView mMainView;
+    private final NotificationFooterLayout mFooter;
+    private final SwipeDetector mSwipeDetector;
+    private final View mIconView;
+
+    private final View mHeader;
+    private final View mDivider;
+
+    private View mGutter;
+
+    private boolean mIgnoreTouch = false;
     private boolean mAnimatingNextIcon;
     private int mNotificationHeaderTextColor = Notification.COLOR_DEFAULT;
 
-    public NotificationItemView(Context context) {
-        this(context, null, 0);
-    }
+    public NotificationItemView(PopupContainerWithArrow container) {
+        mContainer = container;
+        mContext = container.getContext();
 
-    public NotificationItemView(Context context, AttributeSet attrs) {
-        this(context, attrs, 0);
-    }
+        mHeaderText = container.findViewById(R.id.notification_text);
+        mHeaderCount = container.findViewById(R.id.notification_count);
+        mMainView = container.findViewById(R.id.main_view);
+        mFooter = container.findViewById(R.id.footer);
+        mIconView = container.findViewById(R.id.popup_item_icon);
 
-    public NotificationItemView(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-    }
+        mHeader = container.findViewById(R.id.header);
+        mDivider = container.findViewById(R.id.divider);
 
-    @Override
-    protected void onFinishInflate() {
-        super.onFinishInflate();
-        mHeaderText = findViewById(R.id.notification_text);
-        mHeaderCount = findViewById(R.id.notification_count);
-        mMainView = findViewById(R.id.main_view);
-        mFooter = findViewById(R.id.footer);
-
-        mSwipeDetector = new SwipeDetector(getContext(), mMainView, SwipeDetector.HORIZONTAL);
+        mSwipeDetector = new SwipeDetector(mContext, mMainView, HORIZONTAL);
         mSwipeDetector.setDetectableScrollConditions(SwipeDetector.DIRECTION_BOTH, false);
         mMainView.setSwipeDetector(mSwipeDetector);
+        mFooter.setContainer(this);
     }
 
-    public NotificationMainView getMainView() {
-        return mMainView;
+    public void addGutter() {
+        if (mGutter == null) {
+            mGutter = mContainer.inflateAndAdd(R.layout.notification_gutter);
+        }
     }
 
-    /**
-     * This method is used to calculate the height to remove when dismissing the last notification.
-     * We subtract the height of the footer in this case since the footer should be gone or in the
-     * process of being removed.
-     * @return The height of the entire notification item, minus the footer if it still exists.
-     */
-    public int getHeightMinusFooter() {
-        if (mFooter.getParent() == null) {
-            return getHeight();
+    public void removeFooter() {
+        if (mContainer.indexOfChild(mFooter) >= 0) {
+            mContainer.removeView(mFooter);
+            mContainer.removeView(mDivider);
         }
-        int excessFooterHeight = mFooter.getHeight() - getResources().getDimensionPixelSize(
-                R.dimen.notification_empty_footer_height);
-        return getHeight() - excessFooterHeight;
     }
 
-    public Animator animateHeightRemoval(int heightToRemove, boolean shouldRemoveFromTop) {
-        AnimatorSet anim = LauncherAnimUtils.createAnimatorSet();
+    public void inverseGutterMargin() {
+        MarginLayoutParams lp = (MarginLayoutParams) mGutter.getLayoutParams();
+        int top = lp.topMargin;
+        lp.topMargin = lp.bottomMargin;
+        lp.bottomMargin = top;
+    }
 
-        Rect startRect = new Rect(mPillRect);
-        Rect endRect = new Rect(mPillRect);
-        if (shouldRemoveFromTop) {
-            endRect.top += heightToRemove;
-        } else {
-            endRect.bottom -= heightToRemove;
-        }
-        anim.play(new RoundedRectRevealOutlineProvider(getBackgroundRadius(), getBackgroundRadius(),
-                startRect, endRect, mRoundedCorners).createRevealAnimator(this, false));
+    public void removeAllViews() {
+        mContainer.removeView(mMainView);
+        mContainer.removeView(mHeader);
 
-        View bottomGutter = findViewById(R.id.gutter_bottom);
-        if (bottomGutter != null && bottomGutter.getVisibility() == VISIBLE) {
-            Animator translateGutter = ObjectAnimator.ofFloat(bottomGutter, TRANSLATION_Y,
-                    -heightToRemove);
-            translateGutter.addListener(new PropertyResetListener<>(TRANSLATION_Y, 0f));
-            anim.play(translateGutter);
+        if (mContainer.indexOfChild(mFooter) >= 0) {
+            mContainer.removeView(mFooter);
+            mContainer.removeView(mDivider);
         }
 
-        return anim;
+        if (mGutter != null) {
+            mContainer.removeView(mGutter);
+        }
     }
 
     public void updateHeader(int notificationCount, @Nullable IconPalette palette) {
@@ -134,32 +119,44 @@
         if (palette != null) {
             if (mNotificationHeaderTextColor == Notification.COLOR_DEFAULT) {
                 mNotificationHeaderTextColor =
-                        IconPalette.resolveContrastColor(getContext(), palette.dominantColor,
-                                Themes.getAttrColor(getContext(), R.attr.popupColorPrimary));
+                        IconPalette.resolveContrastColor(mContext, palette.dominantColor,
+                                Themes.getAttrColor(mContext, R.attr.popupColorPrimary));
             }
             mHeaderText.setTextColor(mNotificationHeaderTextColor);
             mHeaderCount.setTextColor(mNotificationHeaderTextColor);
         }
     }
 
-    @Override
     public boolean onInterceptTouchEvent(MotionEvent ev) {
+        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
+            sTempRect.set(mMainView.getLeft(), mMainView.getTop(),
+                    mMainView.getRight(), mMainView.getBottom());
+            mIgnoreTouch = !sTempRect.contains((int) ev.getX(), (int) ev.getY());
+            if (!mIgnoreTouch) {
+                mContainer.getParent().requestDisallowInterceptTouchEvent(true);
+            }
+        }
+        if (mIgnoreTouch) {
+            return false;
+        }
         if (mMainView.getNotificationInfo() == null) {
             // The notification hasn't been populated yet.
             return false;
         }
-        getParent().requestDisallowInterceptTouchEvent(true);
+
         mSwipeDetector.onTouchEvent(ev);
         return mSwipeDetector.isDraggingOrSettling();
     }
 
-    @Override
     public boolean onTouchEvent(MotionEvent ev) {
+        if (mIgnoreTouch) {
+            return false;
+        }
         if (mMainView.getNotificationInfo() == null) {
             // The notification hasn't been populated yet.
             return false;
         }
-        return mSwipeDetector.onTouchEvent(ev) || super.onTouchEvent(ev);
+        return mSwipeDetector.onTouchEvent(ev);
     }
 
     public void applyNotificationInfos(final List<NotificationInfo> notificationInfos) {
@@ -168,7 +165,7 @@
         }
 
         NotificationInfo mainNotification = notificationInfos.get(0);
-        mMainView.applyNotificationInfo(mainNotification, mIconView);
+        mMainView.applyNotificationInfo(mainNotification, false);
 
         for (int i = 1; i < notificationInfos.size(); i++) {
             mFooter.addNotificationInfo(notificationInfos.get(i));
@@ -182,29 +179,18 @@
         if (dismissedMainNotification && !mAnimatingNextIcon) {
             // Animate the next icon into place as the new main notification.
             mAnimatingNextIcon = true;
-            mMainView.setVisibility(INVISIBLE);
-            mMainView.setTranslationX(0);
+            mMainView.setContentVisibility(View.INVISIBLE);
+            mMainView.setContentTranslation(0);
             mIconView.getGlobalVisibleRect(sTempRect);
-            mFooter.animateFirstNotificationTo(sTempRect,
-                    new NotificationFooterLayout.IconAnimationEndListener() {
-                @Override
-                public void onIconAnimationEnd(NotificationInfo newMainNotification) {
-                    if (newMainNotification != null) {
-                        mMainView.applyNotificationInfo(newMainNotification, mIconView, true);
-                        mMainView.setVisibility(VISIBLE);
-                    }
-                    mAnimatingNextIcon = false;
+            mFooter.animateFirstNotificationTo(sTempRect, (newMainNotification) -> {
+                if (newMainNotification != null) {
+                    mMainView.applyNotificationInfo(newMainNotification, true);
+                    mMainView.setContentVisibility(View.VISIBLE);
                 }
+                mAnimatingNextIcon = false;
             });
         } else {
             mFooter.trimNotifications(notificationKeys);
         }
     }
-
-    @Override
-    public void fillInLogContainerData(View v, ItemInfo info, LauncherLogProto.Target target,
-            LauncherLogProto.Target targetParent) {
-        target.itemType = LauncherLogProto.ItemType.NOTIFICATION;
-        targetParent.containerType = LauncherLogProto.ContainerType.DEEPSHORTCUTS;
-    }
 }
diff --git a/src/com/android/launcher3/notification/NotificationMainView.java b/src/com/android/launcher3/notification/NotificationMainView.java
index 5aff28d..33caded 100644
--- a/src/com/android/launcher3/notification/NotificationMainView.java
+++ b/src/com/android/launcher3/notification/NotificationMainView.java
@@ -16,22 +16,28 @@
 
 package com.android.launcher3.notification;
 
+import static com.android.launcher3.anim.Interpolators.scrollInterpolatorForVelocity;
+
+import android.animation.Animator;
 import android.animation.ObjectAnimator;
+import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.res.ColorStateList;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.RippleDrawable;
+import android.os.Build;
 import android.text.TextUtils;
 import android.util.AttributeSet;
+import android.util.FloatProperty;
 import android.view.View;
 import android.view.ViewGroup;
-import android.view.ViewPropertyAnimator;
 import android.widget.FrameLayout;
 import android.widget.TextView;
 
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
+import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.touch.OverScroll;
 import com.android.launcher3.touch.SwipeDetector;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
@@ -41,13 +47,33 @@
  * A {@link android.widget.FrameLayout} that contains a single notification,
  * e.g. icon + title + text.
  */
+@TargetApi(Build.VERSION_CODES.N)
 public class NotificationMainView extends FrameLayout implements SwipeDetector.Listener {
 
+    private static FloatProperty<NotificationMainView> CONTENT_TRANSLATION =
+            new FloatProperty<NotificationMainView>("contentTranslation") {
+        @Override
+        public void setValue(NotificationMainView view, float v) {
+            view.setContentTranslation(v);
+        }
+
+        @Override
+        public Float get(NotificationMainView view) {
+            return view.mTextAndBackground.getTranslationX();
+        }
+    };
+
+    // This is used only to track the notification view, so that it can be properly logged.
+    public static final ItemInfo NOTIFICATION_ITEM_INFO = new ItemInfo();
+
+    private final ObjectAnimator mContentTranslateAnimator;
+
     private NotificationInfo mNotificationInfo;
     private ViewGroup mTextAndBackground;
     private int mBackgroundColor;
     private TextView mTitleView;
     private TextView mTextView;
+    private View mIconView;
 
     private SwipeDetector mSwipeDetector;
 
@@ -61,25 +87,24 @@
 
     public NotificationMainView(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
+
+        mContentTranslateAnimator = ObjectAnimator.ofFloat(this, CONTENT_TRANSLATION, 0);
     }
 
     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
 
-        mTextAndBackground = (ViewGroup) findViewById(R.id.text_and_background);
+        mTextAndBackground = findViewById(R.id.text_and_background);
         ColorDrawable colorBackground = (ColorDrawable) mTextAndBackground.getBackground();
         mBackgroundColor = colorBackground.getColor();
         RippleDrawable rippleBackground = new RippleDrawable(ColorStateList.valueOf(
                 Themes.getAttrColor(getContext(), android.R.attr.colorControlHighlight)),
                 colorBackground, null);
         mTextAndBackground.setBackground(rippleBackground);
-        mTitleView = (TextView) mTextAndBackground.findViewById(R.id.title);
-        mTextView = (TextView) mTextAndBackground.findViewById(R.id.text);
-    }
-
-    public void applyNotificationInfo(NotificationInfo mainNotification, View iconView) {
-        applyNotificationInfo(mainNotification, iconView, false);
+        mTitleView = mTextAndBackground.findViewById(R.id.title);
+        mTextView = mTextAndBackground.findViewById(R.id.text);
+        mIconView = findViewById(R.id.popup_item_icon);
     }
 
     public void setSwipeDetector(SwipeDetector swipeDetector) {
@@ -89,8 +114,7 @@
     /**
      * Sets the content of this view, animating it after a new icon shifts up if necessary.
      */
-    public void applyNotificationInfo(NotificationInfo mainNotification, View iconView,
-           boolean animate) {
+    public void applyNotificationInfo(NotificationInfo mainNotification, boolean animate) {
         mNotificationInfo = mainNotification;
         CharSequence title = mNotificationInfo.title;
         CharSequence text = mNotificationInfo.text;
@@ -102,20 +126,30 @@
             mTitleView.setText(TextUtils.isEmpty(title) ? text.toString() : title.toString());
             mTextView.setVisibility(GONE);
         }
-        iconView.setBackground(mNotificationInfo.getIconForBackground(getContext(),
+        mIconView.setBackground(mNotificationInfo.getIconForBackground(getContext(),
                 mBackgroundColor));
         if (mNotificationInfo.intent != null) {
             setOnClickListener(mNotificationInfo);
         }
-        setTranslationX(0);
+        setContentTranslation(0);
         // Add a dummy ItemInfo so that logging populates the correct container and item types
         // instead of DEFAULT_CONTAINERTYPE and DEFAULT_ITEMTYPE, respectively.
-        setTag(new ItemInfo());
+        setTag(NOTIFICATION_ITEM_INFO);
         if (animate) {
             ObjectAnimator.ofFloat(mTextAndBackground, ALPHA, 0, 1).setDuration(150).start();
         }
     }
 
+    public void setContentTranslation(float translation) {
+        mTextAndBackground.setTranslationX(translation);
+        mIconView.setTranslationX(translation);
+    }
+
+    public void setContentVisibility(int visibility) {
+        mTextAndBackground.setVisibility(visibility);
+        mIconView.setVisibility(visibility);
+    }
+
     public NotificationInfo getNotificationInfo() {
         return mNotificationInfo;
     }
@@ -142,9 +176,9 @@
 
     @Override
     public boolean onDrag(float displacement, float velocity) {
-        setTranslationX(canChildBeDismissed()
+        setContentTranslation(canChildBeDismissed()
                 ? displacement : OverScroll.dampedScroll(displacement, getWidth()));
-        animate().cancel();
+        mContentTranslateAnimator.cancel();
         return true;
     }
 
@@ -152,6 +186,7 @@
     public void onDragEnd(float velocity, boolean fling) {
         final boolean willExit;
         final float endTranslation;
+        final float startTranslation = mTextAndBackground.getTranslationX();
 
         if (!canChildBeDismissed()) {
             willExit = false;
@@ -159,31 +194,30 @@
         } else if (fling) {
             willExit = true;
             endTranslation = velocity < 0 ? - getWidth() : getWidth();
-        } else if (Math.abs(getTranslationX()) > getWidth() / 2) {
+        } else if (Math.abs(startTranslation) > getWidth() / 2) {
             willExit = true;
-            endTranslation = (getTranslationX() < 0 ? -getWidth() : getWidth());
+            endTranslation = (startTranslation < 0 ? -getWidth() : getWidth());
         } else {
             willExit = false;
             endTranslation = 0;
         }
 
-        SwipeDetector.ScrollInterpolator interpolator = new SwipeDetector.ScrollInterpolator();
-        interpolator.setVelocityAtZero(velocity);
-
         long duration = SwipeDetector.calculateDuration(velocity,
-                (endTranslation - getTranslationX()) / getWidth());
-        animate()
-                .setDuration(duration)
-                .setInterpolator(interpolator)
-                .translationX(endTranslation)
-                .withEndAction(new Runnable() {
-                    @Override
-                    public void run() {
-                        mSwipeDetector.finishedScrolling();
-                        if (willExit) {
-                            onChildDismissed();
-                        }
-                    }
-                }).start();
+                (endTranslation - startTranslation) / getWidth());
+
+        mContentTranslateAnimator.removeAllListeners();
+        mContentTranslateAnimator.setDuration(duration)
+                .setInterpolator(scrollInterpolatorForVelocity(velocity));
+        mContentTranslateAnimator.setFloatValues(startTranslation, endTranslation);
+        mContentTranslateAnimator.addListener(new AnimationSuccessListener() {
+            @Override
+            public void onAnimationSuccess(Animator animator) {
+                mSwipeDetector.finishedScrolling();
+                if (willExit) {
+                    onChildDismissed();
+                }
+            }
+        });
+        mContentTranslateAnimator.start();
     }
 }
diff --git a/src/com/android/launcher3/pageindicators/CaretDrawable.java b/src/com/android/launcher3/pageindicators/CaretDrawable.java
deleted file mode 100644
index 5ade497..0000000
--- a/src/com/android/launcher3/pageindicators/CaretDrawable.java
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.launcher3.pageindicators;
-
-import android.content.Context;
-import android.content.res.Resources;
-import android.graphics.Canvas;
-import android.graphics.ColorFilter;
-import android.graphics.Paint;
-import android.graphics.Path;
-import android.graphics.PixelFormat;
-import android.graphics.drawable.Drawable;
-
-import com.android.launcher3.R;
-import com.android.launcher3.util.Themes;
-
-public class CaretDrawable extends Drawable {
-    public static final float PROGRESS_CARET_POINTING_UP = -1f;
-    public static final float PROGRESS_CARET_POINTING_DOWN = 1f;
-    public static final float PROGRESS_CARET_NEUTRAL = 0;
-
-    private float mCaretProgress = PROGRESS_CARET_NEUTRAL;
-
-    private Paint mShadowPaint = new Paint();
-    private Paint mCaretPaint = new Paint();
-    private Path mPath = new Path();
-    private final int mCaretSizePx;
-    private final boolean mUseShadow;
-
-    public CaretDrawable(Context context) {
-        final Resources res = context.getResources();
-
-        final int strokeWidth = res.getDimensionPixelSize(R.dimen.all_apps_caret_stroke_width);
-        final int shadowSpread = res.getDimensionPixelSize(R.dimen.all_apps_caret_shadow_spread);
-
-        mCaretPaint.setColor(Themes.getAttrColor(context, R.attr.workspaceTextColor));
-        mCaretPaint.setAntiAlias(true);
-        mCaretPaint.setStrokeWidth(strokeWidth);
-        mCaretPaint.setStyle(Paint.Style.STROKE);
-        mCaretPaint.setStrokeCap(Paint.Cap.ROUND);
-        mCaretPaint.setStrokeJoin(Paint.Join.ROUND);
-
-        mShadowPaint.setColor(res.getColor(R.color.default_shadow_color_no_alpha));
-        mShadowPaint.setAlpha(Themes.getAlpha(context, android.R.attr.spotShadowAlpha));
-        mShadowPaint.setAntiAlias(true);
-        mShadowPaint.setStrokeWidth(strokeWidth + (shadowSpread * 2));
-        mShadowPaint.setStyle(Paint.Style.STROKE);
-        mShadowPaint.setStrokeCap(Paint.Cap.ROUND);
-        mShadowPaint.setStrokeJoin(Paint.Join.ROUND);
-
-        mUseShadow = !Themes.getAttrBoolean(context, R.attr.isWorkspaceDarkText);
-        mCaretSizePx = res.getDimensionPixelSize(R.dimen.all_apps_caret_size);
-    }
-
-    @Override
-    public int getIntrinsicHeight() {
-        return mCaretSizePx;
-    }
-
-    @Override
-    public int getIntrinsicWidth() {
-        return mCaretSizePx;
-    }
-
-    @Override
-    public void draw(Canvas canvas) {
-        // Assumes caret paint is more important than shadow paint
-        if (Float.compare(mCaretPaint.getAlpha(), 0f) == 0) {
-            return;
-        }
-
-        // Assumes shadow stroke width is larger
-        final float width = getBounds().width() - mShadowPaint.getStrokeWidth();
-        final float height = getBounds().height() - mShadowPaint.getStrokeWidth();
-        final float left = getBounds().left + (mShadowPaint.getStrokeWidth() / 2);
-        final float top = getBounds().top + (mShadowPaint.getStrokeWidth() / 2);
-
-        // When the bounds are square, this will result in a caret with a right angle
-        final float verticalInset = (height / 4);
-        final float caretHeight = (height - (verticalInset * 2));
-
-        mPath.reset();
-        mPath.moveTo(left, top + caretHeight * (1 - getNormalizedCaretProgress()));
-        mPath.lineTo(left + (width / 2), top + caretHeight * getNormalizedCaretProgress());
-        mPath.lineTo(left + width, top + caretHeight * (1 - getNormalizedCaretProgress()));
-        if (mUseShadow) {
-            canvas.drawPath(mPath, mShadowPaint);
-        }
-        canvas.drawPath(mPath, mCaretPaint);
-    }
-
-    /**
-     * Sets the caret progress
-     *
-     * @param progress The progress ({@value #PROGRESS_CARET_POINTING_UP} for pointing up,
-     * {@value #PROGRESS_CARET_POINTING_DOWN} for pointing down, {@value #PROGRESS_CARET_NEUTRAL}
-     * for neutral)
-     */
-    public void setCaretProgress(float progress) {
-        mCaretProgress = progress;
-        invalidateSelf();
-    }
-
-    /**
-     * Returns the caret progress
-     *
-     * @return The progress
-     */
-    public float getCaretProgress() {
-        return mCaretProgress;
-    }
-
-    /**
-     * Returns the caret progress normalized to [0..1]
-     *
-     * @return The normalized progress
-     */
-    public float getNormalizedCaretProgress() {
-        return (mCaretProgress - PROGRESS_CARET_POINTING_UP) /
-                (PROGRESS_CARET_POINTING_DOWN - PROGRESS_CARET_POINTING_UP);
-    }
-
-    @Override
-    public int getOpacity() {
-        return PixelFormat.TRANSLUCENT;
-    }
-
-    @Override
-    public void setAlpha(int alpha) {
-        mCaretPaint.setAlpha(alpha);
-        mShadowPaint.setAlpha(alpha);
-        invalidateSelf();
-    }
-
-    @Override
-    public void setColorFilter(ColorFilter cf) {
-        // no-op
-    }
-}
diff --git a/src/com/android/launcher3/pageindicators/PageIndicator.java b/src/com/android/launcher3/pageindicators/PageIndicator.java
index d6ef5b4..be6bcc5 100644
--- a/src/com/android/launcher3/pageindicators/PageIndicator.java
+++ b/src/com/android/launcher3/pageindicators/PageIndicator.java
@@ -16,7 +16,6 @@
 package com.android.launcher3.pageindicators;
 
 import android.content.Context;
-import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
 import android.widget.FrameLayout;
 
@@ -24,7 +23,6 @@
  * Base class for a page indicator.
  */
 public abstract class PageIndicator extends FrameLayout {
-    private CaretDrawable mCaretDrawable;
 
     protected int mNumPages = 1;
 
@@ -52,28 +50,7 @@
         onPageCountChanged();
     }
 
-    public CaretDrawable getCaretDrawable() {
-        return mCaretDrawable;
-    }
-
-    public void setCaretDrawable(CaretDrawable caretDrawable) {
-        if (mCaretDrawable != null) {
-            mCaretDrawable.setCallback(null);
-        }
-
-        mCaretDrawable = caretDrawable;
-
-        if (mCaretDrawable != null) {
-            mCaretDrawable.setCallback(this);
-        }
-    }
-
     protected void onPageCountChanged() {}
 
     public void setShouldAutoHide(boolean shouldAutoHide) {}
-
-    @Override
-    protected boolean verifyDrawable(Drawable who) {
-        return super.verifyDrawable(who) || who == getCaretDrawable();
-    }
 }
diff --git a/src/com/android/launcher3/pageindicators/PageIndicatorCaretLandscape.java b/src/com/android/launcher3/pageindicators/PageIndicatorCaretLandscape.java
deleted file mode 100644
index 911be93..0000000
--- a/src/com/android/launcher3/pageindicators/PageIndicatorCaretLandscape.java
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.launcher3.pageindicators;
-
-import android.content.Context;
-import android.graphics.Canvas;
-import android.graphics.Rect;
-import android.util.AttributeSet;
-
-import com.android.launcher3.Launcher;
-import com.android.launcher3.R;
-
-/**
- * Simply draws the caret drawable bottom-right aligned in the view. This ensures that we can have
- * a view with as large an area as we want (for touching) while maintaining a caret of size
- * all_apps_caret_size.  Used only for the landscape layout.
- */
-public class PageIndicatorCaretLandscape extends PageIndicator {
-    // all apps pull up handle drawable.
-
-    public PageIndicatorCaretLandscape(Context context) {
-        this(context, null);
-    }
-
-    public PageIndicatorCaretLandscape(Context context, AttributeSet attrs) {
-        this(context, attrs, 0);
-    }
-
-    public PageIndicatorCaretLandscape(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-
-        int caretSize = context.getResources().getDimensionPixelSize(R.dimen.all_apps_caret_size);
-        CaretDrawable caretDrawable = new CaretDrawable(context);
-        caretDrawable.setBounds(0, 0, caretSize, caretSize);
-        setCaretDrawable(caretDrawable);
-
-        Launcher l = Launcher.getLauncher(context);
-        setOnClickListener(l);
-        setOnFocusChangeListener(l.mFocusHandler);
-    }
-
-    @Override
-    protected void onDraw(Canvas canvas) {
-        Rect drawableBounds = getCaretDrawable().getBounds();
-        int count = canvas.save();
-        canvas.translate((getWidth() - drawableBounds.width()) / 2,
-                getHeight() - drawableBounds.height());
-        getCaretDrawable().draw(canvas);
-        canvas.restoreToCount(count);
-    }
-}
diff --git a/src/com/android/launcher3/pageindicators/PageIndicatorLandscape.java b/src/com/android/launcher3/pageindicators/PageIndicatorLandscape.java
new file mode 100644
index 0000000..7325235
--- /dev/null
+++ b/src/com/android/launcher3/pageindicators/PageIndicatorLandscape.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.pageindicators;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import com.android.launcher3.Launcher;
+
+/**
+ * Simply draws the caret drawable bottom-right aligned in the view. This ensures that we can have
+ * a view with as large an area as we want (for touching) while maintaining a caret of size
+ * all_apps_caret_size.  Used only for the landscape layout.
+ */
+public class PageIndicatorLandscape extends PageIndicator {
+    // all apps pull up handle drawable.
+
+    public PageIndicatorLandscape(Context context) {
+        this(context, null);
+    }
+
+    public PageIndicatorLandscape(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public PageIndicatorLandscape(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        Launcher l = Launcher.getLauncher(context);
+        setOnClickListener(l);
+        setOnFocusChangeListener(l.mFocusHandler);
+    }
+}
diff --git a/src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java b/src/com/android/launcher3/pageindicators/PageIndicatorLine.java
similarity index 84%
rename from src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java
rename to src/com/android/launcher3/pageindicators/PageIndicatorLine.java
index 5eedd92..09a06b0 100644
--- a/src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java
+++ b/src/com/android/launcher3/pageindicators/PageIndicatorLine.java
@@ -26,7 +26,7 @@
  *
  * The fraction is 1 / number of pages and the position is based on the progress of the page scroll.
  */
-public class PageIndicatorLineCaret extends PageIndicator {
+public class PageIndicatorLine extends PageIndicator {
 
     private static final int LINE_ANIMATE_DURATION = ViewConfiguration.getScrollBarFadeDuration();
     private static final int LINE_FADE_DELAY = ViewConfiguration.getScrollDefaultDelay();
@@ -56,43 +56,43 @@
     private final int mLineHeight;
     private ImageView mAllAppsHandle;
 
-    private static final Property<PageIndicatorLineCaret, Integer> PAINT_ALPHA
-            = new Property<PageIndicatorLineCaret, Integer>(Integer.class, "paint_alpha") {
+    private static final Property<PageIndicatorLine, Integer> PAINT_ALPHA
+            = new Property<PageIndicatorLine, Integer>(Integer.class, "paint_alpha") {
         @Override
-        public Integer get(PageIndicatorLineCaret obj) {
+        public Integer get(PageIndicatorLine obj) {
             return obj.mLinePaint.getAlpha();
         }
 
         @Override
-        public void set(PageIndicatorLineCaret obj, Integer alpha) {
+        public void set(PageIndicatorLine obj, Integer alpha) {
             obj.mLinePaint.setAlpha(alpha);
             obj.invalidate();
         }
     };
 
-    private static final Property<PageIndicatorLineCaret, Float> NUM_PAGES
-            = new Property<PageIndicatorLineCaret, Float>(Float.class, "num_pages") {
+    private static final Property<PageIndicatorLine, Float> NUM_PAGES
+            = new Property<PageIndicatorLine, Float>(Float.class, "num_pages") {
         @Override
-        public Float get(PageIndicatorLineCaret obj) {
+        public Float get(PageIndicatorLine obj) {
             return obj.mNumPagesFloat;
         }
 
         @Override
-        public void set(PageIndicatorLineCaret obj, Float numPages) {
+        public void set(PageIndicatorLine obj, Float numPages) {
             obj.mNumPagesFloat = numPages;
             obj.invalidate();
         }
     };
 
-    private static final Property<PageIndicatorLineCaret, Integer> TOTAL_SCROLL
-            = new Property<PageIndicatorLineCaret, Integer>(Integer.class, "total_scroll") {
+    private static final Property<PageIndicatorLine, Integer> TOTAL_SCROLL
+            = new Property<PageIndicatorLine, Integer>(Integer.class, "total_scroll") {
         @Override
-        public Integer get(PageIndicatorLineCaret obj) {
+        public Integer get(PageIndicatorLine obj) {
             return obj.mTotalScroll;
         }
 
         @Override
-        public void set(PageIndicatorLineCaret obj, Integer totalScroll) {
+        public void set(PageIndicatorLine obj, Integer totalScroll) {
             obj.mTotalScroll = totalScroll;
             obj.invalidate();
         }
@@ -105,15 +105,15 @@
         }
     };
 
-    public PageIndicatorLineCaret(Context context) {
+    public PageIndicatorLine(Context context) {
         this(context, null);
     }
 
-    public PageIndicatorLineCaret(Context context, AttributeSet attrs) {
+    public PageIndicatorLine(Context context, AttributeSet attrs) {
         this(context, attrs, 0);
     }
 
-    public PageIndicatorLineCaret(Context context, AttributeSet attrs, int defStyle) {
+    public PageIndicatorLine(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
 
         Resources res = context.getResources();
@@ -122,7 +122,6 @@
 
         mLauncher = Launcher.getLauncher(context);
         mLineHeight = res.getDimensionPixelSize(R.dimen.dynamic_grid_page_indicator_line_height);
-        setCaretDrawable(new CaretDrawable(context));
 
         boolean darkText = WallpaperColorInfo.getInstance(context).supportsDarkText();
         mActiveAlpha = darkText ? BLACK_ALPHA : WHITE_ALPHA;
@@ -132,8 +131,7 @@
     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
-        mAllAppsHandle = (ImageView) findViewById(R.id.all_apps_handle);
-        mAllAppsHandle.setImageDrawable(getCaretDrawable());
+        mAllAppsHandle = findViewById(R.id.all_apps_handle);
         mAllAppsHandle.setOnClickListener(mLauncher);
         mAllAppsHandle.setOnFocusChangeListener(mLauncher.mFocusHandler);
         mLauncher.setAllAppsButton(mAllAppsHandle);
diff --git a/src/com/android/launcher3/popup/BaseActionPopup.java b/src/com/android/launcher3/popup/BaseActionPopup.java
deleted file mode 100644
index 7ffe2ef..0000000
--- a/src/com/android/launcher3/popup/BaseActionPopup.java
+++ /dev/null
@@ -1,599 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.launcher3.popup;
-
-import static com.android.launcher3.popup.PopupPopulator.MAX_SHORTCUTS_IF_NOTIFICATIONS;
-
-import android.animation.Animator;
-import android.animation.AnimatorListenerAdapter;
-import android.animation.AnimatorSet;
-import android.animation.ObjectAnimator;
-import android.animation.TimeInterpolator;
-import android.animation.ValueAnimator;
-import android.annotation.TargetApi;
-import android.content.Context;
-import android.content.res.Resources;
-import android.graphics.CornerPathEffect;
-import android.graphics.Outline;
-import android.graphics.Paint;
-import android.graphics.Point;
-import android.graphics.PointF;
-import android.graphics.Rect;
-import android.graphics.drawable.ShapeDrawable;
-import android.os.Build;
-import android.support.annotation.IntDef;
-import android.util.AttributeSet;
-import android.view.Gravity;
-import android.view.LayoutInflater;
-import android.view.MotionEvent;
-import android.view.View;
-import android.view.ViewConfiguration;
-import android.view.accessibility.AccessibilityEvent;
-import android.view.animation.AccelerateDecelerateInterpolator;
-import android.widget.TextView;
-
-import com.android.launcher3.AbstractFloatingView;
-import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherAnimUtils;
-import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
-import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
-import com.android.launcher3.accessibility.ShortcutMenuAccessibilityDelegate;
-import com.android.launcher3.anim.PropertyListBuilder;
-import com.android.launcher3.anim.RoundedRectRevealOutlineProvider;
-import com.android.launcher3.dragndrop.DragLayer;
-import com.android.launcher3.graphics.TriangleShape;
-import com.android.launcher3.logging.LoggerUtils;
-import com.android.launcher3.notification.NotificationItemView;
-import com.android.launcher3.shortcuts.DeepShortcutView;
-import com.android.launcher3.shortcuts.ShortcutsItemView;
-import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
-import com.android.launcher3.util.PackageUserKey;
-import com.android.launcher3.util.Themes;
-
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.util.Set;
-
-/**
- * Base popup container for showing shortcuts to deep links within apps.
- */
-@TargetApi(Build.VERSION_CODES.N)
-public class BaseActionPopup<V extends TextView> extends AbstractFloatingView {
-
-    public static final int ROUNDED_TOP_CORNERS = 1 << 0;
-    public static final int ROUNDED_BOTTOM_CORNERS = 1 << 1;
-
-    @IntDef(flag = true, value = {
-            ROUNDED_TOP_CORNERS,
-            ROUNDED_BOTTOM_CORNERS
-    })
-    @Retention(RetentionPolicy.SOURCE)
-    public  @interface RoundedCornerFlags {}
-
-    protected final Launcher mLauncher;
-    protected final LauncherAccessibilityDelegate mAccessibilityDelegate;
-    private final boolean mIsRtl;
-
-    public ShortcutsItemView mShortcutsItemView;
-
-    protected V mOriginalIcon;
-    private final Rect mTempRect = new Rect();
-    private PointF mInterceptTouchDown = new PointF();
-    private boolean mIsLeftAligned;
-    protected boolean mIsAboveIcon;
-    protected View mArrow;
-    private int mGravity;
-
-    protected Animator mOpenCloseAnimator;
-    protected boolean mDeferContainerRemoval;
-    private final Rect mStartRect = new Rect();
-    private final Rect mEndRect = new Rect();
-
-    public BaseActionPopup(Context context, AttributeSet attrs, int defStyleAttr) {
-        super(context, attrs, defStyleAttr);
-        mLauncher = Launcher.getLauncher(context);
-
-        mAccessibilityDelegate = new ShortcutMenuAccessibilityDelegate(mLauncher);
-        mIsRtl = Utilities.isRtl(getResources());
-    }
-
-    public BaseActionPopup(Context context, AttributeSet attrs) {
-        this(context, attrs, 0);
-    }
-
-    public BaseActionPopup(Context context) {
-        this(context, null, 0);
-    }
-
-    public LauncherAccessibilityDelegate getAccessibilityDelegate() {
-        return mAccessibilityDelegate;
-    }
-
-    protected PopupItemView getItemViewAt(int index) {
-        if (!mIsAboveIcon) {
-            // Opening down, so arrow is the first view.
-            index++;
-        }
-        return (PopupItemView) getChildAt(index);
-    }
-
-    protected int getItemCount() {
-        // All children except the arrow are items.
-        return getChildCount() - 1;
-    }
-
-    protected void animateOpen() {
-        setVisibility(View.VISIBLE);
-        mIsOpen = true;
-
-        final AnimatorSet openAnim = LauncherAnimUtils.createAnimatorSet();
-        final Resources res = getResources();
-        final long revealDuration = (long) res.getInteger(R.integer.config_popupOpenCloseDuration);
-        final TimeInterpolator revealInterpolator = new AccelerateDecelerateInterpolator();
-
-        // Rectangular reveal.
-        int itemsTotalHeight = 0;
-        for (int i = 0; i < getItemCount(); i++) {
-            itemsTotalHeight += getItemViewAt(i).getMeasuredHeight();
-        }
-        Point startPoint = computeAnimStartPoint(itemsTotalHeight);
-        int top = mIsAboveIcon ? getPaddingTop() : startPoint.y;
-        float radius = getItemViewAt(0).getBackgroundRadius();
-        mStartRect.set(startPoint.x, startPoint.y, startPoint.x, startPoint.y);
-        mEndRect.set(0, top, getMeasuredWidth(), top + itemsTotalHeight);
-        final ValueAnimator revealAnim = new RoundedRectRevealOutlineProvider
-                (radius, radius, mStartRect, mEndRect).createRevealAnimator(this, false);
-        revealAnim.setDuration(revealDuration);
-        revealAnim.setInterpolator(revealInterpolator);
-
-        Animator fadeIn = ObjectAnimator.ofFloat(this, ALPHA, 0, 1);
-        fadeIn.setDuration(revealDuration);
-        fadeIn.setInterpolator(revealInterpolator);
-        openAnim.play(fadeIn);
-
-        // Animate the arrow.
-        mArrow.setScaleX(0);
-        mArrow.setScaleY(0);
-        Animator arrowScale = createArrowScaleAnim(1).setDuration(res.getInteger(
-                R.integer.config_popupArrowOpenDuration));
-
-        openAnim.addListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                mOpenCloseAnimator = null;
-                Utilities.sendCustomAccessibilityEvent(
-                        BaseActionPopup.this,
-                        AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED,
-                        getContext().getString(R.string.action_deep_shortcut));
-            }
-        });
-
-        mOpenCloseAnimator = openAnim;
-        openAnim.playSequentially(revealAnim, arrowScale);
-        openAnim.start();
-    }
-
-    @Override
-    protected void onLayout(boolean changed, int l, int t, int r, int b) {
-        super.onLayout(changed, l, t, r, b);
-        enforceContainedWithinScreen(l, r);
-    }
-
-    private void enforceContainedWithinScreen(int left, int right) {
-        DragLayer dragLayer = mLauncher.getDragLayer();
-        if (getTranslationX() + left < 0 ||
-                getTranslationX() + right > dragLayer.getWidth()) {
-            // If we are still off screen, center horizontally too.
-            mGravity |= Gravity.CENTER_HORIZONTAL;
-        }
-
-        if (Gravity.isHorizontal(mGravity)) {
-            setX(dragLayer.getWidth() / 2 - getMeasuredWidth() / 2);
-        }
-        if (Gravity.isVertical(mGravity)) {
-            setY(dragLayer.getHeight() / 2 - getMeasuredHeight() / 2);
-        }
-    }
-
-    /**
-     * Returns the point at which the center of the arrow merges with the first popup item.
-     */
-    private Point computeAnimStartPoint(int itemsTotalHeight) {
-        int arrowCenterX = getResources().getDimensionPixelSize(mIsLeftAligned ^ mIsRtl ?
-                R.dimen.popup_arrow_horizontal_center_start:
-                R.dimen.popup_arrow_horizontal_center_end);
-        if (!mIsLeftAligned) {
-            arrowCenterX = getMeasuredWidth() - arrowCenterX;
-        }
-        int arrowHeight = getMeasuredHeight() - getPaddingTop() - getPaddingBottom()
-                - itemsTotalHeight;
-        // The y-coordinate of edge between the arrow and the first popup item.
-        int arrowEdge = getPaddingTop() + (mIsAboveIcon ? itemsTotalHeight : arrowHeight);
-        return new Point(arrowCenterX, arrowEdge);
-    }
-
-    /**
-     * Orients this container above or below the given icon, aligning with the left or right.
-     *
-     * These are the preferred orientations, in order (RTL prefers right-aligned over left):
-     * - Above and left-aligned
-     * - Above and right-aligned
-     * - Below and left-aligned
-     * - Below and right-aligned
-     *
-     * So we always align left if there is enough horizontal space
-     * and align above if there is enough vertical space.
-     */
-    protected void orientAboutIcon(int arrowHeight) {
-        int width = getMeasuredWidth();
-        int height = getMeasuredHeight() + arrowHeight;
-
-        DragLayer dragLayer = mLauncher.getDragLayer();
-        dragLayer.getDescendantRectRelativeToSelf(mOriginalIcon, mTempRect);
-        Rect insets = dragLayer.getInsets();
-
-        // Align left (right in RTL) if there is room.
-        int leftAlignedX = mTempRect.left + mOriginalIcon.getPaddingLeft();
-        int rightAlignedX = mTempRect.right - width - mOriginalIcon.getPaddingRight();
-        int x = leftAlignedX;
-        boolean canBeLeftAligned = leftAlignedX + width + insets.left
-                < dragLayer.getRight() - insets.right;
-        boolean canBeRightAligned = rightAlignedX > dragLayer.getLeft() + insets.left;
-        if (!canBeLeftAligned || (mIsRtl && canBeRightAligned)) {
-            x = rightAlignedX;
-        }
-        mIsLeftAligned = x == leftAlignedX;
-        if (mIsRtl) {
-            x -= dragLayer.getWidth() - width;
-        }
-
-        // Offset x so that the arrow and shortcut icons are center-aligned with the original icon.
-        int iconWidth = mOriginalIcon.getWidth()
-                - mOriginalIcon.getTotalPaddingLeft() - mOriginalIcon.getTotalPaddingRight();
-        iconWidth *= mOriginalIcon.getScaleX();
-        Resources resources = getResources();
-        int xOffset;
-        if (isAlignedWithStart()) {
-            // Aligning with the shortcut icon.
-            int shortcutIconWidth = resources.getDimensionPixelSize(R.dimen.deep_shortcut_icon_size);
-            int shortcutPaddingStart = resources.getDimensionPixelSize(
-                    R.dimen.popup_padding_start);
-            xOffset = iconWidth / 2 - shortcutIconWidth / 2 - shortcutPaddingStart;
-        } else {
-            // Aligning with the drag handle.
-            int shortcutDragHandleWidth = resources.getDimensionPixelSize(
-                    R.dimen.deep_shortcut_drag_handle_size);
-            int shortcutPaddingEnd = resources.getDimensionPixelSize(
-                    R.dimen.popup_padding_end);
-            xOffset = iconWidth / 2 - shortcutDragHandleWidth / 2 - shortcutPaddingEnd;
-        }
-        x += mIsLeftAligned ? xOffset : -xOffset;
-
-        // Open above icon if there is room.
-        int iconHeight = getIconHeightForPopupPlacement();
-        int y = mTempRect.top + mOriginalIcon.getPaddingTop() - height;
-        mIsAboveIcon = y > dragLayer.getTop() + insets.top;
-        if (!mIsAboveIcon) {
-            y = mTempRect.top + mOriginalIcon.getPaddingTop() + iconHeight;
-        }
-
-        // Insets are added later, so subtract them now.
-        if (mIsRtl) {
-            x += insets.right;
-        } else {
-            x -= insets.left;
-        }
-        y -= insets.top;
-
-        mGravity = 0;
-        if (y + height > dragLayer.getBottom() - insets.bottom) {
-            // The container is opening off the screen, so just center it in the drag layer instead.
-            mGravity = Gravity.CENTER_VERTICAL;
-            // Put the container next to the icon, preferring the right side in ltr (left in rtl).
-            int rightSide = leftAlignedX + iconWidth - insets.left;
-            int leftSide = rightAlignedX - iconWidth - insets.left;
-            if (!mIsRtl) {
-                if (rightSide + width < dragLayer.getRight()) {
-                    x = rightSide;
-                    mIsLeftAligned = true;
-                } else {
-                    x = leftSide;
-                    mIsLeftAligned = false;
-                }
-            } else {
-                if (leftSide > dragLayer.getLeft()) {
-                    x = leftSide;
-                    mIsLeftAligned = false;
-                } else {
-                    x = rightSide;
-                    mIsLeftAligned = true;
-                }
-            }
-            mIsAboveIcon = true;
-        }
-
-        setX(x);
-        setY(y);
-    }
-
-    protected int getIconHeightForPopupPlacement() {
-        return mOriginalIcon.getHeight();
-    }
-
-    protected boolean isAlignedWithStart() {
-        return mIsLeftAligned && !mIsRtl || !mIsLeftAligned && mIsRtl;
-    }
-
-    /**
-     * Adds an arrow view pointing at the original icon.
-     * @param horizontalOffset the horizontal offset of the arrow, so that it
-     *                              points at the center of the original icon
-     */
-    protected View addArrowView(int horizontalOffset, int verticalOffset, int width, int height) {
-        LayoutParams layoutParams = new LayoutParams(width, height);
-        if (mIsLeftAligned) {
-            layoutParams.gravity = Gravity.LEFT;
-            layoutParams.leftMargin = horizontalOffset;
-        } else {
-            layoutParams.gravity = Gravity.RIGHT;
-            layoutParams.rightMargin = horizontalOffset;
-        }
-        if (mIsAboveIcon) {
-            layoutParams.topMargin = verticalOffset;
-        } else {
-            layoutParams.bottomMargin = verticalOffset;
-        }
-
-        View arrowView = new View(getContext());
-        if (Gravity.isVertical(mGravity)) {
-            // This is only true if there wasn't room for the container next to the icon,
-            // so we centered it instead. In that case we don't want to show the arrow.
-            arrowView.setVisibility(INVISIBLE);
-        } else {
-            ShapeDrawable arrowDrawable = new ShapeDrawable(TriangleShape.create(
-                    width, height, !mIsAboveIcon));
-            Paint arrowPaint = arrowDrawable.getPaint();
-            arrowPaint.setColor(Themes.getAttrColor(mLauncher, R.attr.popupColorPrimary));
-            // The corner path effect won't be reflected in the shadow, but shouldn't be noticeable.
-            int radius = getResources().getDimensionPixelSize(R.dimen.popup_arrow_corner_radius);
-            arrowPaint.setPathEffect(new CornerPathEffect(radius));
-            arrowView.setBackground(arrowDrawable);
-            arrowView.setElevation(getElevation());
-        }
-        addView(arrowView, mIsAboveIcon ? getChildCount() : 0, layoutParams);
-        return arrowView;
-    }
-
-    @Override
-    public boolean onInterceptTouchEvent(MotionEvent ev) {
-        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
-            mInterceptTouchDown.set(ev.getX(), ev.getY());
-            return false;
-        }
-        // Stop sending touch events to deep shortcut views if user moved beyond touch slop.
-        return Math.hypot(mInterceptTouchDown.x - ev.getX(), mInterceptTouchDown.y - ev.getY())
-                > ViewConfiguration.get(getContext()).getScaledTouchSlop();
-    }
-
-    protected ObjectAnimator createArrowScaleAnim(float scale) {
-        return LauncherAnimUtils.ofPropertyValuesHolder(
-                mArrow, new PropertyListBuilder().scale(scale).build());
-    }
-
-    @Override
-    protected void handleClose(boolean animate) {
-        if (animate) {
-            animateClose();
-        } else {
-            closeComplete();
-        }
-    }
-
-    protected void animateClose() {
-        if (!mIsOpen) {
-            return;
-        }
-        mEndRect.setEmpty();
-        if (mOpenCloseAnimator != null) {
-            Outline outline = new Outline();
-            getOutlineProvider().getOutline(this, outline);
-            outline.getRect(mEndRect);
-            mOpenCloseAnimator.cancel();
-        }
-        mIsOpen = false;
-
-        final AnimatorSet closeAnim = LauncherAnimUtils.createAnimatorSet();
-        prepareCloseAnimator(closeAnim);
-
-        closeAnim.addListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                mOpenCloseAnimator = null;
-                if (mDeferContainerRemoval) {
-                    setVisibility(INVISIBLE);
-                } else {
-                    closeComplete();
-                }
-            }
-        });
-        mOpenCloseAnimator = closeAnim;
-        closeAnim.start();
-    }
-
-    protected void prepareCloseAnimator(AnimatorSet closeAnim) {
-        final Resources res = getResources();
-        final TimeInterpolator revealInterpolator = new AccelerateDecelerateInterpolator();
-
-        // Rectangular reveal (reversed).
-        int itemsTotalHeight = 0;
-        for (int i = 0; i < getItemCount(); i++) {
-            itemsTotalHeight += getItemViewAt(i).getMeasuredHeight();
-        }
-        Point startPoint = computeAnimStartPoint(itemsTotalHeight);
-        int top = mIsAboveIcon ? getPaddingTop() : startPoint.y;
-        float radius = getItemViewAt(0).getBackgroundRadius();
-        mStartRect.set(startPoint.x, startPoint.y, startPoint.x, startPoint.y);
-        if (mEndRect.isEmpty()) {
-            mEndRect.set(0, top, getMeasuredWidth(), top + itemsTotalHeight);
-        }
-        final ValueAnimator revealAnim = new RoundedRectRevealOutlineProvider(
-                radius, radius, mStartRect, mEndRect).createRevealAnimator(this, true);
-        revealAnim.setInterpolator(revealInterpolator);
-        closeAnim.play(revealAnim);
-
-        Animator fadeOut = ObjectAnimator.ofFloat(this, ALPHA, 0);
-        fadeOut.setInterpolator(revealInterpolator);
-        closeAnim.play(fadeOut);
-        closeAnim.setDuration((long) res.getInteger(R.integer.config_popupOpenCloseDuration));
-    }
-
-    /**
-     * Closes the folder without animation.
-     */
-    protected void closeComplete() {
-        if (mOpenCloseAnimator != null) {
-            mOpenCloseAnimator.cancel();
-            mOpenCloseAnimator = null;
-        }
-        mIsOpen = false;
-        mDeferContainerRemoval = false;
-        mLauncher.getDragLayer().removeView(this);
-    }
-
-    @Override
-    protected boolean isOfType(int type) {
-        return (type & TYPE_ACTION_POPUP) != 0;
-    }
-
-    /**
-     * Returns a DeepShortcutsContainer which is already open or null
-     */
-    public static BaseActionPopup getOpen(Launcher launcher) {
-        return getOpenView(launcher, TYPE_ACTION_POPUP);
-    }
-
-    @Override
-    public void logActionCommand(int command) {
-        mLauncher.getUserEventDispatcher().logActionCommand(
-                command, mOriginalIcon, ContainerType.DEEPSHORTCUTS);
-    }
-
-    @Override
-    public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
-        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
-            DragLayer dl = mLauncher.getDragLayer();
-            if (!dl.isEventOverView(this, ev)) {
-                mLauncher.getUserEventDispatcher().logActionTapOutside(
-                        LoggerUtils.newContainerTarget(ContainerType.DEEPSHORTCUTS));
-                close(true);
-
-                // We let touches on the original icon go through so that users can launch
-                // the app with one tap if they don't find a shortcut they want.
-                return mOriginalIcon == null || !dl.isEventOverView(mOriginalIcon, ev);
-            }
-        }
-        return false;
-    }
-
-    public void populateAndShow(V originalIcon, PopupPopulator.Item[] itemsToPopulate) {
-        setVisibility(View.INVISIBLE);
-        mLauncher.getDragLayer().addView(this);
-
-        final Resources resources = getResources();
-        final int arrowWidth = resources.getDimensionPixelSize(R.dimen.popup_arrow_width);
-        final int arrowHeight = resources.getDimensionPixelSize(R.dimen.popup_arrow_height);
-        final int arrowVerticalOffset = resources.getDimensionPixelSize(
-                R.dimen.popup_arrow_vertical_offset);
-
-        mOriginalIcon = originalIcon;
-
-        // Add dummy views first, and populate with real info when ready.
-        addDummyViews(itemsToPopulate);
-
-        measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
-        orientAboutIcon(arrowHeight + arrowVerticalOffset);
-
-        boolean reverseOrder = mIsAboveIcon;
-        if (reverseOrder) {
-            removeAllViews();
-            mShortcutsItemView = null;
-            itemsToPopulate = PopupPopulator.reverseItems(itemsToPopulate);
-            addDummyViews(itemsToPopulate);
-
-            measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
-            orientAboutIcon(arrowHeight + arrowVerticalOffset);
-        }
-
-        // Add the arrow.
-        final int arrowHorizontalOffset = resources.getDimensionPixelSize(isAlignedWithStart() ?
-                R.dimen.popup_arrow_horizontal_offset_start :
-                R.dimen.popup_arrow_horizontal_offset_end);
-        mArrow = addArrowView(arrowHorizontalOffset, arrowVerticalOffset, arrowWidth, arrowHeight);
-        mArrow.setPivotX(arrowWidth / 2);
-        mArrow.setPivotY(mIsAboveIcon ? 0 : arrowHeight);
-
-        measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
-        animateOpen();
-    }
-
-    protected void addDummyViews(PopupPopulator.Item[] itemTypesToPopulate) {
-        final LayoutInflater inflater = mLauncher.getLayoutInflater();
-        int shortcutsItemRoundedCorners = ROUNDED_TOP_CORNERS | ROUNDED_BOTTOM_CORNERS;
-        int numItems = itemTypesToPopulate.length;
-        for (int i = 0; i < numItems; i++) {
-            PopupPopulator.Item itemTypeToPopulate = itemTypesToPopulate[i];
-            PopupPopulator.Item prevItemTypeToPopulate =
-                    i > 0 ? itemTypesToPopulate[i - 1] : null;
-            PopupPopulator.Item nextItemTypeToPopulate =
-                    i < numItems - 1 ? itemTypesToPopulate[i + 1] : null;
-            final View item = inflater.inflate(itemTypeToPopulate.layoutId, this, false);
-
-            boolean shouldUnroundTopCorners = prevItemTypeToPopulate != null
-                    && itemTypeToPopulate.isShortcut ^ prevItemTypeToPopulate.isShortcut;
-            boolean shouldUnroundBottomCorners = nextItemTypeToPopulate != null
-                    && itemTypeToPopulate.isShortcut ^ nextItemTypeToPopulate.isShortcut;
-
-            onViewInflated(item, itemTypeToPopulate,
-                    shouldUnroundTopCorners, shouldUnroundBottomCorners);
-
-            if (itemTypeToPopulate.isShortcut) {
-                if (mShortcutsItemView == null) {
-                    mShortcutsItemView = (ShortcutsItemView) inflater.inflate(
-                            R.layout.shortcuts_item, this, false);
-                    addView(mShortcutsItemView);
-                    if (shouldUnroundTopCorners) {
-                        shortcutsItemRoundedCorners &= ~ROUNDED_TOP_CORNERS;
-                    }
-                }
-                mShortcutsItemView.addShortcutView(item, itemTypeToPopulate);
-                if (shouldUnroundBottomCorners) {
-                    shortcutsItemRoundedCorners &= ~ROUNDED_BOTTOM_CORNERS;
-                }
-            } else {
-                addView(item);
-            }
-        }
-        int backgroundColor = Themes.getAttrColor(mLauncher, R.attr.popupColorPrimary);
-        mShortcutsItemView.setBackgroundWithCorners(backgroundColor, shortcutsItemRoundedCorners);
-    }
-
-    protected void onViewInflated(View view, PopupPopulator.Item itemType,
-            boolean shouldUnroundTopCorners, boolean shouldUnroundBottomCorners) {
-
-    }
-}
\ No newline at end of file
diff --git a/src/com/android/launcher3/popup/PopupContainerWithArrow.java b/src/com/android/launcher3/popup/PopupContainerWithArrow.java
index 4435afb..3dc58a1 100644
--- a/src/com/android/launcher3/popup/PopupContainerWithArrow.java
+++ b/src/com/android/launcher3/popup/PopupContainerWithArrow.java
@@ -16,26 +16,39 @@
 
 package com.android.launcher3.popup;
 
-import static com.android.launcher3.popup.PopupPopulator.MAX_SHORTCUTS_IF_NOTIFICATIONS;
-import static com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
-import static com.android.launcher3.userevent.nano.LauncherLogProto.ItemType;
-import static com.android.launcher3.userevent.nano.LauncherLogProto.Target;
-
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
+import android.animation.LayoutTransition;
 import android.animation.ObjectAnimator;
+import android.animation.TimeInterpolator;
 import android.animation.ValueAnimator;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.res.Resources;
+import android.graphics.CornerPathEffect;
+import android.graphics.Outline;
+import android.graphics.Paint;
+import android.graphics.Point;
+import android.graphics.PointF;
+import android.graphics.Rect;
+import android.graphics.drawable.ShapeDrawable;
 import android.os.Build;
 import android.os.Handler;
 import android.os.Looper;
 import android.util.AttributeSet;
+import android.view.Gravity;
 import android.view.LayoutInflater;
+import android.view.MotionEvent;
 import android.view.View;
+import android.view.ViewConfiguration;
+import android.view.ViewGroup;
+import android.view.ViewOutlineProvider;
+import android.view.accessibility.AccessibilityEvent;
+import android.view.animation.AccelerateDecelerateInterpolator;
+import android.widget.ImageView;
 
+import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.DragSource;
 import com.android.launcher3.DropTarget;
@@ -45,42 +58,103 @@
 import com.android.launcher3.LauncherAnimUtils;
 import com.android.launcher3.LauncherModel;
 import com.android.launcher3.R;
-import com.android.launcher3.anim.PropertyResetListener;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
+import com.android.launcher3.accessibility.ShortcutMenuAccessibilityDelegate;
+import com.android.launcher3.anim.RoundedRectRevealOutlineProvider;
 import com.android.launcher3.badge.BadgeInfo;
 import com.android.launcher3.dragndrop.DragController;
+import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.dragndrop.DragOptions;
+import com.android.launcher3.dragndrop.DragView;
 import com.android.launcher3.graphics.IconPalette;
+import com.android.launcher3.graphics.TriangleShape;
+import com.android.launcher3.logging.LoggerUtils;
+import com.android.launcher3.notification.NotificationInfo;
 import com.android.launcher3.notification.NotificationItemView;
 import com.android.launcher3.notification.NotificationKeyData;
-import com.android.launcher3.popup.PopupPopulator.Item;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
 import com.android.launcher3.shortcuts.DeepShortcutView;
-import com.android.launcher3.shortcuts.ShortcutsItemView;
+import com.android.launcher3.shortcuts.ShortcutDragPreviewProvider;
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.util.Themes;
 
+import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
+import static com.android.launcher3.notification.NotificationMainView.NOTIFICATION_ITEM_INFO;
+import static com.android.launcher3.popup.PopupPopulator.MAX_SHORTCUTS;
+import static com.android.launcher3.popup.PopupPopulator.MAX_SHORTCUTS_IF_NOTIFICATIONS;
+import static com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
+import static com.android.launcher3.userevent.nano.LauncherLogProto.ItemType;
+import static com.android.launcher3.userevent.nano.LauncherLogProto.Target;
+
 /**
  * A container for shortcuts to deep links and notifications associated with an app.
  */
 @TargetApi(Build.VERSION_CODES.N)
-public class PopupContainerWithArrow extends BaseActionPopup<BubbleTextView> implements DragSource,
-        DragController.DragListener {
+public class PopupContainerWithArrow extends AbstractFloatingView implements DragSource,
+        DragController.DragListener, View.OnLongClickListener,
+        View.OnTouchListener {
+
+    private final List<DeepShortcutView> mShortcuts = new ArrayList<>();
+    private final PointF mInterceptTouchDown = new PointF();
+    private final Rect mTempRect = new Rect();
+    private final Point mIconLastTouchPos = new Point();
 
     private final int mStartDragThreshold;
+    private final LayoutInflater mInflater;
+    private final float mOutlineRadius;
+    private final Launcher mLauncher;
+    private final LauncherAccessibilityDelegate mAccessibilityDelegate;
+    private final boolean mIsRtl;
 
+    private final int mArrayOffset;
+    private final View mArrow;
+
+    private BubbleTextView mOriginalIcon;
     private NotificationItemView mNotificationItemView;
-    private AnimatorSet mReduceHeightAnimatorSet;
+
+    private ViewGroup mSystemShortcutContainer;
+
+    private boolean mIsLeftAligned;
+    protected boolean mIsAboveIcon;
     private int mNumNotifications;
+    private int mGravity;
+
+    protected Animator mOpenCloseAnimator;
+    protected boolean mDeferContainerRemoval;
+    private final Rect mStartRect = new Rect();
+    private final Rect mEndRect = new Rect();
 
     public PopupContainerWithArrow(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
         mStartDragThreshold = getResources().getDimensionPixelSize(
                 R.dimen.deep_shortcuts_start_drag_threshold);
+        mInflater = LayoutInflater.from(context);
+        mOutlineRadius = getResources().getDimension(R.dimen.bg_round_rect_radius);
+        mLauncher = Launcher.getLauncher(context);
+        mAccessibilityDelegate = new ShortcutMenuAccessibilityDelegate(mLauncher);
+        mIsRtl = Utilities.isRtl(getResources());
+
+        setClipToOutline(true);
+        setOutlineProvider(new ViewOutlineProvider() {
+            @Override
+            public void getOutline(View view, Outline outline) {
+                outline.setRoundRect(0, 0, view.getWidth(), view.getHeight(), mOutlineRadius);
+            }
+        });
+
+        // Initialize arrow view
+        final Resources resources = getResources();
+        final int arrowWidth = resources.getDimensionPixelSize(R.dimen.popup_arrow_width);
+        final int arrowHeight = resources.getDimensionPixelSize(R.dimen.popup_arrow_height);
+        mArrow = new View(context);
+        mArrow.setLayoutParams(new DragLayer.LayoutParams(arrowWidth, arrowHeight));
+        mArrayOffset = resources.getDimensionPixelSize(R.dimen.popup_arrow_vertical_offset);
     }
 
     public PopupContainerWithArrow(Context context, AttributeSet attrs) {
@@ -91,6 +165,75 @@
         this(context, null, 0);
     }
 
+    public LauncherAccessibilityDelegate getAccessibilityDelegate() {
+        return mAccessibilityDelegate;
+    }
+
+    @Override
+    public boolean onInterceptTouchEvent(MotionEvent ev) {
+        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
+            mInterceptTouchDown.set(ev.getX(), ev.getY());
+        }
+        if (mNotificationItemView != null
+                && mNotificationItemView.onInterceptTouchEvent(ev)) {
+            return true;
+        }
+        // Stop sending touch events to deep shortcut views if user moved beyond touch slop.
+        return Math.hypot(mInterceptTouchDown.x - ev.getX(), mInterceptTouchDown.y - ev.getY())
+                > ViewConfiguration.get(getContext()).getScaledTouchSlop();
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent ev) {
+        if (mNotificationItemView != null) {
+            return mNotificationItemView.onTouchEvent(ev);
+        }
+        return super.onTouchEvent(ev);
+    }
+
+    @Override
+    protected boolean isOfType(int type) {
+        return (type & TYPE_ACTION_POPUP) != 0;
+    }
+
+    @Override
+    public void logActionCommand(int command) {
+        mLauncher.getUserEventDispatcher().logActionCommand(
+                command, mOriginalIcon, ContainerType.DEEPSHORTCUTS);
+    }
+
+    @Override
+    public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
+        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
+            DragLayer dl = mLauncher.getDragLayer();
+            if (!dl.isEventOverView(this, ev)) {
+                mLauncher.getUserEventDispatcher().logActionTapOutside(
+                        LoggerUtils.newContainerTarget(ContainerType.DEEPSHORTCUTS));
+                close(true);
+
+                // We let touches on the original icon go through so that users can launch
+                // the app with one tap if they don't find a shortcut they want.
+                return mOriginalIcon == null || !dl.isEventOverView(mOriginalIcon, ev);
+            }
+        }
+        return false;
+    }
+
+    @Override
+    protected void handleClose(boolean animate) {
+        if (animate) {
+            animateClose();
+        } else {
+            closeComplete();
+        }
+    }
+
+    public  <T extends View> T inflateAndAdd(int resId) {
+        View view = mInflater.inflate(resId, this, false);
+        addView(view);
+        return (T) view;
+    }
+
     /**
      * Shows the notifications and deep shortcuts associated with {@param icon}.
      * @return the container if shown or null.
@@ -124,188 +267,420 @@
     private void populateAndShow(final BubbleTextView originalIcon, final List<String> shortcutIds,
             final List<NotificationKeyData> notificationKeys, List<SystemShortcut> systemShortcuts) {
         mNumNotifications = notificationKeys.size();
-        PopupPopulator.Item[] itemsToPopulate = PopupPopulator
-                .getItemsToPopulate(shortcutIds, notificationKeys, systemShortcuts);
-        populateAndShow(originalIcon, itemsToPopulate);
 
-        ItemInfo originalItemInfo = (ItemInfo) originalIcon.getTag();
-        List<DeepShortcutView> shortcutViews = mShortcutsItemView == null
-                ? Collections.EMPTY_LIST
-                : mShortcutsItemView.getDeepShortcutViews(mIsAboveIcon);
-        List<View> systemShortcutViews = mShortcutsItemView == null
-                ? Collections.EMPTY_LIST
-                : mShortcutsItemView.getSystemShortcutViews(mIsAboveIcon);
-        if (mNotificationItemView != null) {
+        setVisibility(View.INVISIBLE);
+        mLauncher.getDragLayer().addView(this);
+
+        mOriginalIcon = originalIcon;
+
+        // Add views
+        if (mNumNotifications > 0) {
+            // Add notification entries
+            View.inflate(getContext(), R.layout.notification_content, this);
+            mNotificationItemView = new NotificationItemView(this);
+            if (mNumNotifications == 1) {
+                mNotificationItemView.removeFooter();
+            }
             updateNotificationHeader();
         }
+        int viewsToFlip = getChildCount();
+        mSystemShortcutContainer = this;
 
-        int numShortcuts = shortcutViews.size() + systemShortcutViews.size();
-        int numNotifications = notificationKeys.size();
-        if (numNotifications == 0) {
+        if (!shortcutIds.isEmpty()) {
+            if (mNotificationItemView != null) {
+                mNotificationItemView.addGutter();
+            }
+
+            for (int i = shortcutIds.size(); i > 0; i--) {
+                mShortcuts.add(inflateAndAdd(R.layout.deep_shortcut));
+            }
+            updateHiddenShortcuts();
+
+            if (!systemShortcuts.isEmpty()) {
+                mSystemShortcutContainer = inflateAndAdd(R.layout.system_shortcut_icons);
+                for (SystemShortcut shortcut : systemShortcuts) {
+                    View view = mInflater.inflate(R.layout.system_shortcut_icon_only,
+                            mSystemShortcutContainer, false);
+                    mSystemShortcutContainer.addView(view);
+                    initializeSystemShortcut(view, shortcut);
+                }
+            }
+        } else if (!systemShortcuts.isEmpty()) {
+            if (mNotificationItemView != null) {
+                mNotificationItemView.addGutter();
+            }
+
+            for (SystemShortcut shortcut : systemShortcuts) {
+                initializeSystemShortcut(inflateAndAdd(R.layout.system_shortcut), shortcut);
+            }
+        }
+        orientAboutIcon();
+
+        boolean reverseOrder = mIsAboveIcon;
+        if (reverseOrder) {
+            int count = getChildCount();
+            ArrayList<View> allViews = new ArrayList<>(count);
+            for (int i = 0; i < count; i++) {
+                if (i == viewsToFlip) {
+                    Collections.reverse(allViews);
+                }
+                allViews.add(getChildAt(i));
+            }
+            Collections.reverse(allViews);
+            removeAllViews();
+            for (int i = 0; i < count; i++) {
+                addView(allViews.get(i));
+            }
+            if (mNotificationItemView != null) {
+                mNotificationItemView.inverseGutterMargin();
+            }
+
+            orientAboutIcon();
+        }
+        updateDividers();
+
+        // Add the arrow.
+        final int arrowHorizontalOffset = getResources().getDimensionPixelSize(isAlignedWithStart()
+                ? R.dimen.popup_arrow_horizontal_offset_start
+                : R.dimen.popup_arrow_horizontal_offset_end);
+        mLauncher.getDragLayer().addView(mArrow);
+        DragLayer.LayoutParams arrowLp = (DragLayer.LayoutParams) mArrow.getLayoutParams();
+        if (mIsLeftAligned) {
+            mArrow.setX(getX() + arrowHorizontalOffset);
+        } else {
+            mArrow.setX(getX() + getMeasuredWidth() - arrowHorizontalOffset);
+        }
+
+        if (Gravity.isVertical(mGravity)) {
+            // This is only true if there wasn't room for the container next to the icon,
+            // so we centered it instead. In that case we don't want to show the arrow.
+            mArrow.setVisibility(INVISIBLE);
+        } else {
+            ShapeDrawable arrowDrawable = new ShapeDrawable(TriangleShape.create(
+                    arrowLp.width, arrowLp.height, !mIsAboveIcon));
+            Paint arrowPaint = arrowDrawable.getPaint();
+            arrowPaint.setColor(Themes.getAttrColor(mLauncher, R.attr.popupColorPrimary));
+            // The corner path effect won't be reflected in the shadow, but shouldn't be noticeable.
+            int radius = getResources().getDimensionPixelSize(R.dimen.popup_arrow_corner_radius);
+            arrowPaint.setPathEffect(new CornerPathEffect(radius));
+            mArrow.setBackground(arrowDrawable);
+            mArrow.setElevation(getElevation());
+        }
+
+        mArrow.setPivotX(arrowLp.width / 2);
+        mArrow.setPivotY(mIsAboveIcon ? 0 : arrowLp.height);
+
+        animateOpen();
+
+        ItemInfo originalItemInfo = (ItemInfo) originalIcon.getTag();
+        int numShortcuts = mShortcuts.size() + systemShortcuts.size();
+        if (mNumNotifications == 0) {
             setContentDescription(getContext().getString(R.string.shortcuts_menu_description,
                     numShortcuts, originalIcon.getContentDescription().toString()));
         } else {
             setContentDescription(getContext().getString(
                     R.string.shortcuts_menu_with_notifications_description, numShortcuts,
-                    numNotifications, originalIcon.getContentDescription().toString()));
+                    mNumNotifications, originalIcon.getContentDescription().toString()));
         }
 
         mLauncher.getDragController().addDragListener(this);
         mOriginalIcon.forceHideBadge(true);
 
+        // All views are added. Animate layout from now on.
+        setLayoutTransition(new LayoutTransition());
+
         // Load the shortcuts on a background thread and update the container as it animates.
         final Looper workerLooper = LauncherModel.getWorkerLooper();
         new Handler(workerLooper).postAtFrontOfQueue(PopupPopulator.createUpdateRunnable(
                 mLauncher, originalItemInfo, new Handler(Looper.getMainLooper()),
-                this, shortcutIds, shortcutViews, notificationKeys, mNotificationItemView,
-                systemShortcuts, systemShortcutViews));
+                this, shortcutIds, mShortcuts, notificationKeys));
     }
 
-    @Override
-    protected void addDummyViews(Item[] itemTypesToPopulate) {
-        mNotificationItemView = null;
-        super.addDummyViews(itemTypesToPopulate);
-        if (mNumNotifications > 0) {
-            mShortcutsItemView.hideShortcuts(mIsAboveIcon, MAX_SHORTCUTS_IF_NOTIFICATIONS);
-        }
+    protected boolean isAlignedWithStart() {
+        return mIsLeftAligned && !mIsRtl || !mIsLeftAligned && mIsRtl;
     }
 
-    @Override
-    protected void onViewInflated(View view, Item itemType,
-            boolean shouldUnroundTopCorners, boolean shouldUnroundBottomCorners) {
-        if (itemType == PopupPopulator.Item.NOTIFICATION) {
-            mNotificationItemView = (NotificationItemView) view;
-            boolean notificationFooterHasIcons = mNumNotifications > 1;
-            int footerHeight = getResources().getDimensionPixelSize(
-                    notificationFooterHasIcons ? R.dimen.notification_footer_height
-                            : R.dimen.notification_empty_footer_height);
-            view.findViewById(R.id.footer).getLayoutParams().height = footerHeight;
-            if (notificationFooterHasIcons) {
-                mNotificationItemView.findViewById(R.id.divider).setVisibility(VISIBLE);
-            }
+    /**
+     * Orients this container above or below the given icon, aligning with the left or right.
+     *
+     * These are the preferred orientations, in order (RTL prefers right-aligned over left):
+     * - Above and left-aligned
+     * - Above and right-aligned
+     * - Below and left-aligned
+     * - Below and right-aligned
+     *
+     * So we always align left if there is enough horizontal space
+     * and align above if there is enough vertical space.
+     */
+    protected void orientAboutIcon() {
+        measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
+        int width = getMeasuredWidth();
+        int extraVerticalSpace = mArrow.getLayoutParams().height + mArrayOffset
+                + getResources().getDimensionPixelSize(R.dimen.popup_vertical_padding);
+        int height = getMeasuredHeight() + extraVerticalSpace;
 
-            int roundedCorners = ROUNDED_TOP_CORNERS | ROUNDED_BOTTOM_CORNERS;
-            if (shouldUnroundTopCorners) {
-                roundedCorners &= ~ROUNDED_TOP_CORNERS;
-                mNotificationItemView.findViewById(R.id.gutter_top).setVisibility(VISIBLE);
-            }
-            if (shouldUnroundBottomCorners) {
-                roundedCorners &= ~ROUNDED_BOTTOM_CORNERS;
-                mNotificationItemView.findViewById(R.id.gutter_bottom).setVisibility(VISIBLE);
-            }
-            int backgroundColor = Themes.getAttrColor(mLauncher, R.attr.popupColorTertiary);
-            mNotificationItemView.setBackgroundWithCorners(backgroundColor, roundedCorners);
+        DragLayer dragLayer = mLauncher.getDragLayer();
+        dragLayer.getDescendantRectRelativeToSelf(mOriginalIcon, mTempRect);
+        Rect insets = dragLayer.getInsets();
 
-            mNotificationItemView.getMainView().setAccessibilityDelegate(mAccessibilityDelegate);
-        } else if (itemType == PopupPopulator.Item.SHORTCUT) {
-            view.setAccessibilityDelegate(mAccessibilityDelegate);
+        // Align left (right in RTL) if there is room.
+        int leftAlignedX = mTempRect.left + mOriginalIcon.getPaddingLeft();
+        int rightAlignedX = mTempRect.right - width - mOriginalIcon.getPaddingRight();
+        int x = leftAlignedX;
+        boolean canBeLeftAligned = leftAlignedX + width + insets.left
+                < dragLayer.getRight() - insets.right;
+        boolean canBeRightAligned = rightAlignedX > dragLayer.getLeft() + insets.left;
+        if (!canBeLeftAligned || (mIsRtl && canBeRightAligned)) {
+            x = rightAlignedX;
+        }
+        mIsLeftAligned = x == leftAlignedX;
+        if (mIsRtl) {
+            x -= dragLayer.getWidth() - width;
         }
 
-        if (itemType != PopupPopulator.Item.SYSTEM_SHORTCUT_ICON && itemType.isShortcut
-                && mNumNotifications > 0) {
-            int prevHeight = view.getLayoutParams().height;
-            // Condense shortcuts height when there are notifications.
-            view.getLayoutParams().height = getResources().getDimensionPixelSize(
-                    R.dimen.bg_popup_item_condensed_height);
-            if (view instanceof DeepShortcutView) {
-                float iconScale = (float) view.getLayoutParams().height / prevHeight;
-                ((DeepShortcutView) view).getIconView().setScaleX(iconScale);
-                ((DeepShortcutView) view).getIconView().setScaleY(iconScale);
-            }
+        // Offset x so that the arrow and shortcut icons are center-aligned with the original icon.
+        int iconWidth = mOriginalIcon.getWidth()
+                - mOriginalIcon.getTotalPaddingLeft() - mOriginalIcon.getTotalPaddingRight();
+        iconWidth *= mOriginalIcon.getScaleX();
+        Resources resources = getResources();
+        int xOffset;
+        if (isAlignedWithStart()) {
+            // Aligning with the shortcut icon.
+            int shortcutIconWidth = resources.getDimensionPixelSize(R.dimen.deep_shortcut_icon_size);
+            int shortcutPaddingStart = resources.getDimensionPixelSize(
+                    R.dimen.popup_padding_start);
+            xOffset = iconWidth / 2 - shortcutIconWidth / 2 - shortcutPaddingStart;
+        } else {
+            // Aligning with the drag handle.
+            int shortcutDragHandleWidth = resources.getDimensionPixelSize(
+                    R.dimen.deep_shortcut_drag_handle_size);
+            int shortcutPaddingEnd = resources.getDimensionPixelSize(
+                    R.dimen.popup_padding_end);
+            xOffset = iconWidth / 2 - shortcutDragHandleWidth / 2 - shortcutPaddingEnd;
         }
-    }
+        x += mIsLeftAligned ? xOffset : -xOffset;
 
-    private void addDummyViews(PopupPopulator.Item[] itemTypesToPopulate, int numNotifications) {
-        final Resources res = getResources();
-        final LayoutInflater inflater = mLauncher.getLayoutInflater();
+        // Open above icon if there is room.
+        int iconHeight = getIconHeightForPopupPlacement();
+        int y = mTempRect.top + mOriginalIcon.getPaddingTop() - height;
+        mIsAboveIcon = y > dragLayer.getTop() + insets.top;
+        if (!mIsAboveIcon) {
+            y = mTempRect.top + mOriginalIcon.getPaddingTop() + iconHeight + extraVerticalSpace;
+        }
 
-        int shortcutsItemRoundedCorners = ROUNDED_TOP_CORNERS | ROUNDED_BOTTOM_CORNERS;
-        int numItems = itemTypesToPopulate.length;
-        for (int i = 0; i < numItems; i++) {
-            PopupPopulator.Item itemTypeToPopulate = itemTypesToPopulate[i];
-            PopupPopulator.Item prevItemTypeToPopulate =
-                    i > 0 ? itemTypesToPopulate[i - 1] : null;
-            PopupPopulator.Item nextItemTypeToPopulate =
-                    i < numItems - 1 ? itemTypesToPopulate[i + 1] : null;
-            final View item = inflater.inflate(itemTypeToPopulate.layoutId, this, false);
+        // Insets are added later, so subtract them now.
+        if (mIsRtl) {
+            x += insets.right;
+        } else {
+            x -= insets.left;
+        }
+        y -= insets.top;
 
-            boolean shouldUnroundTopCorners = prevItemTypeToPopulate != null
-                    && itemTypeToPopulate.isShortcut ^ prevItemTypeToPopulate.isShortcut;
-            boolean shouldUnroundBottomCorners = nextItemTypeToPopulate != null
-                    && itemTypeToPopulate.isShortcut ^ nextItemTypeToPopulate.isShortcut;
-
-            if (itemTypeToPopulate == PopupPopulator.Item.NOTIFICATION) {
-                mNotificationItemView = (NotificationItemView) item;
-                boolean notificationFooterHasIcons = numNotifications > 1;
-                int footerHeight = res.getDimensionPixelSize(
-                        notificationFooterHasIcons ? R.dimen.notification_footer_height
-                                : R.dimen.notification_empty_footer_height);
-                item.findViewById(R.id.footer).getLayoutParams().height = footerHeight;
-                if (notificationFooterHasIcons) {
-                    mNotificationItemView.findViewById(R.id.divider).setVisibility(VISIBLE);
-                }
-
-                int roundedCorners = ROUNDED_TOP_CORNERS | ROUNDED_BOTTOM_CORNERS;
-                if (shouldUnroundTopCorners) {
-                    roundedCorners &= ~ROUNDED_TOP_CORNERS;
-                    mNotificationItemView.findViewById(R.id.gutter_top).setVisibility(VISIBLE);
-                }
-                if (shouldUnroundBottomCorners) {
-                    roundedCorners &= ~ROUNDED_BOTTOM_CORNERS;
-                    mNotificationItemView.findViewById(R.id.gutter_bottom).setVisibility(VISIBLE);
-                }
-                int backgroundColor = Themes.getAttrColor(mLauncher, R.attr.popupColorTertiary);
-                mNotificationItemView.setBackgroundWithCorners(backgroundColor, roundedCorners);
-
-                mNotificationItemView.getMainView().setAccessibilityDelegate(mAccessibilityDelegate);
-            } else if (itemTypeToPopulate == PopupPopulator.Item.SHORTCUT) {
-                item.setAccessibilityDelegate(mAccessibilityDelegate);
-            }
-
-            if (itemTypeToPopulate.isShortcut) {
-                if (mShortcutsItemView == null) {
-                    mShortcutsItemView = (ShortcutsItemView) inflater.inflate(
-                            R.layout.shortcuts_item, this, false);
-                    addView(mShortcutsItemView);
-                    if (shouldUnroundTopCorners) {
-                        shortcutsItemRoundedCorners &= ~ROUNDED_TOP_CORNERS;
-                    }
-                }
-                if (itemTypeToPopulate != PopupPopulator.Item.SYSTEM_SHORTCUT_ICON
-                        && numNotifications > 0) {
-                    int prevHeight = item.getLayoutParams().height;
-                    // Condense shortcuts height when there are notifications.
-                    item.getLayoutParams().height = res.getDimensionPixelSize(
-                            R.dimen.bg_popup_item_condensed_height);
-                    if (item instanceof DeepShortcutView) {
-                        float iconScale = (float) item.getLayoutParams().height / prevHeight;
-                        ((DeepShortcutView) item).getIconView().setScaleX(iconScale);
-                        ((DeepShortcutView) item).getIconView().setScaleY(iconScale);
-                    }
-                }
-                mShortcutsItemView.addShortcutView(item, itemTypeToPopulate);
-                if (shouldUnroundBottomCorners) {
-                    shortcutsItemRoundedCorners &= ~ROUNDED_BOTTOM_CORNERS;
+        mGravity = 0;
+        if (y + height > dragLayer.getBottom() - insets.bottom) {
+            // The container is opening off the screen, so just center it in the drag layer instead.
+            mGravity = Gravity.CENTER_VERTICAL;
+            // Put the container next to the icon, preferring the right side in ltr (left in rtl).
+            int rightSide = leftAlignedX + iconWidth - insets.left;
+            int leftSide = rightAlignedX - iconWidth - insets.left;
+            if (!mIsRtl) {
+                if (rightSide + width < dragLayer.getRight()) {
+                    x = rightSide;
+                    mIsLeftAligned = true;
+                } else {
+                    x = leftSide;
+                    mIsLeftAligned = false;
                 }
             } else {
-                addView(item);
+                if (leftSide > dragLayer.getLeft()) {
+                    x = leftSide;
+                    mIsLeftAligned = false;
+                } else {
+                    x = rightSide;
+                    mIsLeftAligned = true;
+                }
             }
+            mIsAboveIcon = true;
         }
-        int backgroundColor = Themes.getAttrColor(mLauncher, R.attr.popupColorPrimary);
-        mShortcutsItemView.setBackgroundWithCorners(backgroundColor, shortcutsItemRoundedCorners);
-        if (numNotifications > 0) {
-            mShortcutsItemView.hideShortcuts(mIsAboveIcon, MAX_SHORTCUTS_IF_NOTIFICATIONS);
+
+        setX(x);
+        if (Gravity.isVertical(mGravity)) {
+            return;
+        }
+
+        DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams();
+        DragLayer.LayoutParams arrowLp = (DragLayer.LayoutParams) mArrow.getLayoutParams();
+        if (mIsAboveIcon) {
+            arrowLp.gravity = lp.gravity = Gravity.BOTTOM;
+            lp.bottomMargin =
+                    mLauncher.getDragLayer().getHeight() - y - getMeasuredHeight() - insets.top;
+            arrowLp.bottomMargin = lp.bottomMargin - arrowLp.height - mArrayOffset - insets.bottom;
+        } else {
+            arrowLp.gravity = lp.gravity = Gravity.TOP;
+            lp.topMargin = y + insets.top;
+            arrowLp.topMargin = lp.topMargin - insets.top - arrowLp.height - mArrayOffset;
+        }
+    }
+
+    @Override
+    protected void onLayout(boolean changed, int l, int t, int r, int b) {
+        super.onLayout(changed, l, t, r, b);
+
+        // enforce contained is within screen
+        DragLayer dragLayer = mLauncher.getDragLayer();
+        if (getTranslationX() + l < 0 ||
+                getTranslationX() + r > dragLayer.getWidth()) {
+            // If we are still off screen, center horizontally too.
+            mGravity |= Gravity.CENTER_HORIZONTAL;
+        }
+
+        if (Gravity.isHorizontal(mGravity)) {
+            setX(dragLayer.getWidth() / 2 - getMeasuredWidth() / 2);
+            mArrow.setVisibility(INVISIBLE);
+        }
+        if (Gravity.isVertical(mGravity)) {
+            setY(dragLayer.getHeight() / 2 - getMeasuredHeight() / 2);
+        }
+    }
+
+    protected void animateOpen() {
+        setVisibility(View.VISIBLE);
+        mIsOpen = true;
+
+        final AnimatorSet openAnim = LauncherAnimUtils.createAnimatorSet();
+        final Resources res = getResources();
+        final long revealDuration = (long) res.getInteger(R.integer.config_popupOpenCloseDuration);
+        final TimeInterpolator revealInterpolator = new AccelerateDecelerateInterpolator();
+
+        // Rectangular reveal.
+        final ValueAnimator revealAnim = createOpenCloseOutlineProvider()
+                .createRevealAnimator(this, false);
+        revealAnim.setDuration(revealDuration);
+        revealAnim.setInterpolator(revealInterpolator);
+
+        Animator fadeIn = ObjectAnimator.ofFloat(this, ALPHA, 0, 1);
+        fadeIn.setDuration(revealDuration);
+        fadeIn.setInterpolator(revealInterpolator);
+        openAnim.play(fadeIn);
+
+        // Animate the arrow.
+        mArrow.setScaleX(0);
+        mArrow.setScaleY(0);
+        Animator arrowScale = ObjectAnimator.ofFloat(mArrow, LauncherAnimUtils.SCALE_PROPERTY, 1)
+                .setDuration(res.getInteger(R.integer.config_popupArrowOpenDuration));
+
+        openAnim.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                mOpenCloseAnimator = null;
+                Utilities.sendCustomAccessibilityEvent(
+                        PopupContainerWithArrow.this,
+                        AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED,
+                        getContext().getString(R.string.action_deep_shortcut));
+            }
+        });
+
+        mOpenCloseAnimator = openAnim;
+        openAnim.playSequentially(revealAnim, arrowScale);
+        openAnim.start();
+    }
+
+    public void applyNotificationInfos(List<NotificationInfo> notificationInfos) {
+        mNotificationItemView.applyNotificationInfos(notificationInfos);
+    }
+
+    private void updateHiddenShortcuts() {
+        int allowedCount = mNotificationItemView != null
+                ? MAX_SHORTCUTS_IF_NOTIFICATIONS : MAX_SHORTCUTS;
+        int originalHeight = getResources().getDimensionPixelSize(R.dimen.bg_popup_item_height);
+        int itemHeight = mNotificationItemView != null ?
+                getResources().getDimensionPixelSize(R.dimen.bg_popup_item_condensed_height)
+                : originalHeight;
+        float iconScale = ((float) itemHeight) / originalHeight;
+
+        int total = mShortcuts.size();
+        for (int i = 0; i < total; i++) {
+            DeepShortcutView view = mShortcuts.get(i);
+            view.setVisibility(i >= allowedCount ? GONE : VISIBLE);
+            view.getLayoutParams().height = itemHeight;
+            view.getIconView().setScaleX(iconScale);
+            view.getIconView().setScaleY(iconScale);
+        }
+    }
+
+    private void updateDividers() {
+        int count = getChildCount();
+        DeepShortcutView lastView = null;
+        for (int i = 0; i < count; i++) {
+            View view = getChildAt(i);
+            if (view.getVisibility() == VISIBLE && view instanceof DeepShortcutView) {
+                if (lastView != null) {
+                    lastView.setDividerVisibility(VISIBLE);
+                }
+                lastView = (DeepShortcutView) view;
+                lastView.setDividerVisibility(INVISIBLE);
+            }
         }
     }
 
     @Override
     protected void onWidgetsBound() {
-        if (mShortcutsItemView != null) {
-            mShortcutsItemView.enableWidgetsIfExist(mOriginalIcon);
+        ItemInfo itemInfo = (ItemInfo) mOriginalIcon.getTag();
+        SystemShortcut widgetInfo = new SystemShortcut.Widgets();
+        View.OnClickListener onClickListener = widgetInfo.getOnClickListener(mLauncher, itemInfo);
+        View widgetsView = null;
+        int count = mSystemShortcutContainer.getChildCount();
+        for (int i = 0; i < count; i++) {
+            View systemShortcutView = mSystemShortcutContainer.getChildAt(i);
+            if (systemShortcutView.getTag() instanceof SystemShortcut.Widgets) {
+                widgetsView = systemShortcutView;
+                break;
+            }
+        }
+
+        if (onClickListener != null && widgetsView == null) {
+            // We didn't have any widgets cached but now there are some, so enable the shortcut.
+            if (mSystemShortcutContainer != this) {
+                View view = mInflater.inflate(R.layout.system_shortcut_icon_only,
+                        mSystemShortcutContainer, false);
+                mSystemShortcutContainer.addView(view);
+                initializeSystemShortcut(view, widgetInfo);
+            } else {
+                // If using the expanded system shortcut (as opposed to just the icon), we need to
+                // reopen the container to ensure measurements etc. all work out. While this could
+                // be quite janky, in practice the user would typically see a small flicker as the
+                // animation restarts partway through, and this is a very rare edge case anyway.
+                ((PopupContainerWithArrow) getParent()).close(false);
+                PopupContainerWithArrow.showForIcon(mOriginalIcon);
+            }
+        } else if (onClickListener == null && widgetsView != null) {
+            // No widgets exist, but we previously added the shortcut so remove it.
+            if (mSystemShortcutContainer != this) {
+                mSystemShortcutContainer.removeView(widgetsView);
+            } else {
+                ((PopupContainerWithArrow) getParent()).close(false);
+                PopupContainerWithArrow.showForIcon(mOriginalIcon);
+            }
         }
     }
 
-    @Override
+    private void initializeSystemShortcut(View view, SystemShortcut info) {
+        if (view instanceof DeepShortcutView) {
+            // Expanded system shortcut, with both icon and text shown on white background.
+            final DeepShortcutView shortcutView = (DeepShortcutView) view;
+            shortcutView.getIconView().setBackgroundResource(info.iconResId);
+            shortcutView.getBubbleText().setText(info.labelResId);
+        } else if (view instanceof ImageView) {
+            // Only the system shortcut icon shows on a gray background header.
+            final ImageView shortcutIcon = (ImageView) view;
+            shortcutIcon.setImageResource(info.iconResId);
+            shortcutIcon.setContentDescription(getContext().getText(info.labelResId));
+        }
+        view.setTag(info);
+        view.setOnClickListener(info.getOnClickListener(mLauncher,
+                (ItemInfo) mOriginalIcon.getTag()));
+    }
+
     protected int getIconHeightForPopupPlacement() {
         return mOriginalIcon.getIcon() != null
                 ? mOriginalIcon.getIcon().getBounds().height()
@@ -383,108 +758,15 @@
         ItemInfo originalInfo = (ItemInfo) mOriginalIcon.getTag();
         BadgeInfo badgeInfo = updatedBadges.get(PackageUserKey.fromItemInfo(originalInfo));
         if (badgeInfo == null || badgeInfo.getNotificationKeys().size() == 0) {
-            // There are no more notifications, so create an animation to remove
-            // the notifications view and expand the shortcuts view (if possible).
-            AnimatorSet removeNotification = LauncherAnimUtils.createAnimatorSet();
-            int hiddenShortcutsHeight = 0;
-            if (mShortcutsItemView != null) {
-                hiddenShortcutsHeight = mShortcutsItemView.getHiddenShortcutsHeight();
-                int backgroundColor = Themes.getAttrColor(mLauncher, R.attr.popupColorPrimary);
-                // With notifications gone, all corners of shortcuts item should be rounded.
-                mShortcutsItemView.setBackgroundWithCorners(backgroundColor,
-                        ROUNDED_TOP_CORNERS | ROUNDED_BOTTOM_CORNERS);
-                removeNotification.play(mShortcutsItemView.showAllShortcuts(mIsAboveIcon));
-            }
-            final int duration = getResources().getInteger(
-                    R.integer.config_removeNotificationViewDuration);
-            removeNotification.play(adjustItemHeights(mNotificationItemView.getHeightMinusFooter(),
-                    hiddenShortcutsHeight, duration));
-            Animator fade = ObjectAnimator.ofFloat(mNotificationItemView, ALPHA, 0)
-                    .setDuration(duration);
-            fade.addListener(new AnimatorListenerAdapter() {
-                @Override
-                public void onAnimationEnd(Animator animation) {
-                    removeView(mNotificationItemView);
-                    mNotificationItemView = null;
-                    if (getItemCount() == 0) {
-                        close(false);
-                    }
-                }
-            });
-            removeNotification.play(fade);
-            final long arrowScaleDuration = getResources().getInteger(
-                    R.integer.config_popupArrowOpenDuration);
-            Animator hideArrow = createArrowScaleAnim(0).setDuration(arrowScaleDuration);
-            hideArrow.setStartDelay(0);
-            Animator showArrow = createArrowScaleAnim(1).setDuration(arrowScaleDuration);
-            showArrow.setStartDelay((long) (duration - arrowScaleDuration * 1.5));
-            removeNotification.playSequentially(hideArrow, showArrow);
-            removeNotification.start();
-            return;
+            // No more notifications, remove the notification views and expand all shortcuts.
+            mNotificationItemView.removeAllViews();
+            mNotificationItemView = null;
+            updateHiddenShortcuts();
+            updateDividers();
+        } else {
+            mNotificationItemView.trimNotifications(
+                    NotificationKeyData.extractKeysOnly(badgeInfo.getNotificationKeys()));
         }
-        mNotificationItemView.trimNotifications(NotificationKeyData.extractKeysOnly(
-                badgeInfo.getNotificationKeys()));
-    }
-
-    public Animator reduceNotificationViewHeight(int heightToRemove, int duration) {
-        return adjustItemHeights(heightToRemove, 0, duration);
-    }
-
-    /**
-     * Animates the height of the notification item and the translationY of other items accordingly.
-     */
-    public Animator adjustItemHeights(int notificationHeightToRemove, int shortcutHeightToAdd,
-            int duration) {
-        if (mReduceHeightAnimatorSet != null) {
-            mReduceHeightAnimatorSet.cancel();
-        }
-        final int translateYBy = mIsAboveIcon ? notificationHeightToRemove - shortcutHeightToAdd
-                : -notificationHeightToRemove;
-        mReduceHeightAnimatorSet = LauncherAnimUtils.createAnimatorSet();
-        boolean removingNotification =
-                notificationHeightToRemove == mNotificationItemView.getHeightMinusFooter();
-        boolean shouldRemoveNotificationHeightFromTop = mIsAboveIcon && removingNotification;
-        mReduceHeightAnimatorSet.play(mNotificationItemView.animateHeightRemoval(
-                notificationHeightToRemove, shouldRemoveNotificationHeightFromTop));
-        PropertyResetListener<View, Float> resetTranslationYListener
-                = new PropertyResetListener<>(TRANSLATION_Y, 0f);
-        boolean itemIsAfterShortcuts = false;
-        for (int i = 0; i < getItemCount(); i++) {
-            final PopupItemView itemView = getItemViewAt(i);
-            if (itemIsAfterShortcuts) {
-                // Every item after the shortcuts item needs to adjust for the new height.
-                itemView.setTranslationY(itemView.getTranslationY() - shortcutHeightToAdd);
-            }
-            if (itemView == mNotificationItemView && (!mIsAboveIcon || removingNotification)) {
-                // The notification view is already in the right place.
-                continue;
-            }
-            ValueAnimator translateItem = ObjectAnimator.ofFloat(itemView, TRANSLATION_Y,
-                    itemView.getTranslationY() + translateYBy).setDuration(duration);
-            translateItem.addListener(resetTranslationYListener);
-            mReduceHeightAnimatorSet.play(translateItem);
-            if (itemView == mShortcutsItemView) {
-                itemIsAfterShortcuts = true;
-            }
-        }
-        if (mIsAboveIcon) {
-            // We also need to adjust the arrow position to account for the new shortcuts height.
-            mArrow.setTranslationY(mArrow.getTranslationY() - shortcutHeightToAdd);
-        }
-        mReduceHeightAnimatorSet.addListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                if (mIsAboveIcon) {
-                    // All the items, including the notification item, translated down, but the
-                    // container itself did not. This means the items would jump back to their
-                    // original translation unless we update the container's translationY here.
-                    setTranslationY(getTranslationY() + translateYBy);
-                    mArrow.setTranslationY(0);
-                }
-                mReduceHeightAnimatorSet = null;
-            }
-        });
-        return mReduceHeightAnimatorSet;
     }
 
     @Override
@@ -515,25 +797,146 @@
 
     @Override
     public void fillInLogContainerData(View v, ItemInfo info, Target target, Target targetParent) {
-        target.itemType = ItemType.DEEPSHORTCUT;
+        if (info == NOTIFICATION_ITEM_INFO) {
+            target.itemType = ItemType.NOTIFICATION;
+        } else {
+            target.itemType = ItemType.DEEPSHORTCUT;
+            target.rank = info.rank;
+        }
         targetParent.containerType = ContainerType.DEEPSHORTCUTS;
     }
 
-    @Override
-    protected void prepareCloseAnimator(AnimatorSet closeAnim) {
+    protected void animateClose() {
+        if (!mIsOpen) {
+            return;
+        }
+        mEndRect.setEmpty();
+        if (mOpenCloseAnimator != null) {
+            Outline outline = new Outline();
+            getOutlineProvider().getOutline(this, outline);
+            outline.getRect(mEndRect);
+            mOpenCloseAnimator.cancel();
+        }
+        mIsOpen = false;
+
+        final AnimatorSet closeAnim = LauncherAnimUtils.createAnimatorSet();
+        // Hide the arrow
+        closeAnim.play(ObjectAnimator.ofFloat(mArrow, LauncherAnimUtils.SCALE_PROPERTY, 0));
+        closeAnim.play(ObjectAnimator.ofFloat(mArrow, ALPHA, 0));
+
         // Animate original icon's text back in.
         closeAnim.play(mOriginalIcon.createTextAlphaAnimator(true /* fadeIn */));
-
         mOriginalIcon.forceHideBadge(false);
-        super.prepareCloseAnimator(closeAnim);
+
+        final Resources res = getResources();
+        final TimeInterpolator revealInterpolator = new AccelerateDecelerateInterpolator();
+
+        // Rectangular reveal (reversed).
+        final ValueAnimator revealAnim = createOpenCloseOutlineProvider()
+                .createRevealAnimator(this, true);
+        revealAnim.setInterpolator(revealInterpolator);
+        closeAnim.play(revealAnim);
+
+        Animator fadeOut = ObjectAnimator.ofFloat(this, ALPHA, 0);
+        fadeOut.setInterpolator(revealInterpolator);
+        closeAnim.play(fadeOut);
+        closeAnim.setDuration((long) res.getInteger(R.integer.config_popupOpenCloseDuration));
+
+        closeAnim.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                mOpenCloseAnimator = null;
+                if (mDeferContainerRemoval) {
+                    setVisibility(INVISIBLE);
+                } else {
+                    closeComplete();
+                }
+            }
+        });
+        mOpenCloseAnimator = closeAnim;
+        closeAnim.start();
     }
 
-    @Override
-    protected void closeComplete() {
+    private RoundedRectRevealOutlineProvider createOpenCloseOutlineProvider() {
+        int arrowCenterX = getResources().getDimensionPixelSize(mIsLeftAligned ^ mIsRtl ?
+                R.dimen.popup_arrow_horizontal_center_start:
+                R.dimen.popup_arrow_horizontal_center_end);
+        if (!mIsLeftAligned) {
+            arrowCenterX = getMeasuredWidth() - arrowCenterX;
+        }
+        int arrowCenterY = mIsAboveIcon ? getMeasuredHeight() : 0;
+
+        mStartRect.set(arrowCenterX, arrowCenterY, arrowCenterX, arrowCenterY);
+        if (mEndRect.isEmpty()) {
+            mEndRect.set(0, 0, getMeasuredWidth(), getMeasuredHeight());
+        }
+
+        return new RoundedRectRevealOutlineProvider
+                (mOutlineRadius, mOutlineRadius, mStartRect, mEndRect);
+    }
+
+    /**
+     * Closes the popup without animation.
+     */
+    private void closeComplete() {
         mOriginalIcon.setTextVisibility(mOriginalIcon.shouldTextBeVisible());
         mOriginalIcon.forceHideBadge(false);
 
         mLauncher.getDragController().removeDragListener(this);
-        super.closeComplete();
+        if (mOpenCloseAnimator != null) {
+            mOpenCloseAnimator.cancel();
+            mOpenCloseAnimator = null;
+        }
+        mIsOpen = false;
+        mDeferContainerRemoval = false;
+        mLauncher.getDragLayer().removeView(this);
+        mLauncher.getDragLayer().removeView(mArrow);
+    }
+
+    @Override
+    public boolean onTouch(View v, MotionEvent ev) {
+        // Touched a shortcut, update where it was touched so we can drag from there on long click.
+        switch (ev.getAction()) {
+            case MotionEvent.ACTION_DOWN:
+            case MotionEvent.ACTION_MOVE:
+                mIconLastTouchPos.set((int) ev.getX(), (int) ev.getY());
+                break;
+        }
+        return false;
+    }
+
+    @Override
+    public boolean onLongClick(View v) {
+        // Return early if not the correct view
+        if (!(v.getParent() instanceof DeepShortcutView)) return false;
+        // Return early if global dragging is not enabled
+        if (!mLauncher.isDraggingEnabled()) return false;
+        // Return early if an item is already being dragged (e.g. when long-pressing two shortcuts)
+        if (mLauncher.getDragController().isDragging()) return false;
+
+        // Long clicked on a shortcut.
+        DeepShortcutView sv = (DeepShortcutView) v.getParent();
+        sv.setWillDrawIcon(false);
+
+        // Move the icon to align with the center-top of the touch point
+        Point iconShift = new Point();
+        iconShift.x = mIconLastTouchPos.x - sv.getIconCenter().x;
+        iconShift.y = mIconLastTouchPos.y - mLauncher.getDeviceProfile().iconSizePx;
+
+        DragView dv = mLauncher.getWorkspace().beginDragShared(sv.getIconView(),
+                this, sv.getFinalInfo(),
+                new ShortcutDragPreviewProvider(sv.getIconView(), iconShift), new DragOptions());
+        dv.animateShift(-iconShift.x, -iconShift.y);
+
+        // TODO: support dragging from within folder without having to close it
+        AbstractFloatingView.closeOpenContainer(mLauncher, AbstractFloatingView.TYPE_FOLDER);
+        return false;
+    }
+
+    /**
+     * Returns a PopupContainerWithArrow which is already open or null
+     */
+    public static PopupContainerWithArrow getOpen(Launcher launcher) {
+        return getOpenView(launcher, TYPE_ACTION_POPUP);
     }
 }
diff --git a/src/com/android/launcher3/popup/PopupDataProvider.java b/src/com/android/launcher3/popup/PopupDataProvider.java
index 070ac39..abc186b 100644
--- a/src/com/android/launcher3/popup/PopupDataProvider.java
+++ b/src/com/android/launcher3/popup/PopupDataProvider.java
@@ -148,9 +148,9 @@
     }
 
     private void trimNotifications(Map<PackageUserKey, BadgeInfo> updatedBadges) {
-        BaseActionPopup openContainer = BaseActionPopup.getOpen(mLauncher);
-        if (openContainer instanceof PopupContainerWithArrow) {
-            ((PopupContainerWithArrow) openContainer).trimNotifications(updatedBadges);
+        PopupContainerWithArrow openContainer = PopupContainerWithArrow.getOpen(mLauncher);
+        if (openContainer != null) {
+            openContainer.trimNotifications(updatedBadges);
         }
     }
 
diff --git a/src/com/android/launcher3/popup/PopupItemView.java b/src/com/android/launcher3/popup/PopupItemView.java
deleted file mode 100644
index 75c3f26..0000000
--- a/src/com/android/launcher3/popup/PopupItemView.java
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.launcher3.popup;
-
-import android.content.Context;
-import android.graphics.Bitmap;
-import android.graphics.Canvas;
-import android.graphics.Matrix;
-import android.graphics.Paint;
-import android.graphics.PorterDuff;
-import android.graphics.PorterDuffXfermode;
-import android.graphics.Rect;
-import android.graphics.drawable.ShapeDrawable;
-import android.graphics.drawable.shapes.RoundRectShape;
-import android.util.AttributeSet;
-import android.view.View;
-import android.widget.FrameLayout;
-
-import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
-import com.android.launcher3.popup.BaseActionPopup.RoundedCornerFlags;
-
-import static com.android.launcher3.popup.PopupContainerWithArrow.ROUNDED_BOTTOM_CORNERS;
-import static com.android.launcher3.popup.PopupContainerWithArrow.ROUNDED_TOP_CORNERS;
-
-/**
- * An abstract {@link FrameLayout} that contains content for {@link PopupContainerWithArrow}.
- */
-public abstract class PopupItemView extends FrameLayout {
-
-    protected final Rect mPillRect;
-    protected  @RoundedCornerFlags int mRoundedCorners;
-    protected final boolean mIsRtl;
-    protected View mIconView;
-
-    private final Paint mBackgroundClipPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DITHER_FLAG);
-    private final Matrix mMatrix = new Matrix();
-    private Bitmap mRoundedCornerBitmap;
-
-    public PopupItemView(Context context) {
-        this(context, null, 0);
-    }
-
-    public PopupItemView(Context context, AttributeSet attrs) {
-        this(context, attrs, 0);
-    }
-
-    public PopupItemView(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-
-        mPillRect = new Rect();
-
-        // Initialize corner clipping Bitmap and Paint.
-        int radius = (int) getBackgroundRadius();
-        mRoundedCornerBitmap = Bitmap.createBitmap(radius, radius, Bitmap.Config.ALPHA_8);
-        Canvas canvas = new Canvas();
-        canvas.setBitmap(mRoundedCornerBitmap);
-        canvas.drawArc(0, 0, radius*2, radius*2, 180, 90, true, mBackgroundClipPaint);
-        mBackgroundClipPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
-
-        mIsRtl = Utilities.isRtl(getResources());
-    }
-
-    @Override
-    protected void onFinishInflate() {
-        super.onFinishInflate();
-        mIconView = findViewById(R.id.popup_item_icon);
-    }
-
-    @Override
-    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
-        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
-        mPillRect.set(0, 0, getMeasuredWidth(), getMeasuredHeight());
-    }
-
-    @Override
-    protected void dispatchDraw(Canvas canvas) {
-        if (mRoundedCorners == 0) {
-            super.dispatchDraw(canvas);
-            return;
-        }
-
-        int saveCount = canvas.saveLayer(0, 0, getWidth(), getHeight(), null);
-        super.dispatchDraw(canvas);
-
-        // Clip children to this item's rounded corners.
-        int cornerWidth = mRoundedCornerBitmap.getWidth();
-        int cornerHeight = mRoundedCornerBitmap.getHeight();
-        int cornerCenterX = Math.round(cornerWidth / 2f);
-        int cornerCenterY = Math.round(cornerHeight / 2f);
-        if ((mRoundedCorners & ROUNDED_TOP_CORNERS) != 0) {
-            // Clip top left corner.
-            mMatrix.reset();
-            canvas.drawBitmap(mRoundedCornerBitmap, mMatrix, mBackgroundClipPaint);
-            // Clip top right corner.
-            mMatrix.setRotate(90, cornerCenterX, cornerCenterY);
-            mMatrix.postTranslate(canvas.getWidth() - cornerWidth, 0);
-            canvas.drawBitmap(mRoundedCornerBitmap, mMatrix, mBackgroundClipPaint);
-        }
-        if ((mRoundedCorners & ROUNDED_BOTTOM_CORNERS) != 0) {
-            // Clip bottom right corner.
-            mMatrix.setRotate(180, cornerCenterX, cornerCenterY);
-            mMatrix.postTranslate(canvas.getWidth() - cornerWidth, canvas.getHeight() - cornerHeight);
-            canvas.drawBitmap(mRoundedCornerBitmap, mMatrix, mBackgroundClipPaint);
-            // Clip bottom left corner.
-            mMatrix.setRotate(270, cornerCenterX, cornerCenterY);
-            mMatrix.postTranslate(0, canvas.getHeight() - cornerHeight);
-            canvas.drawBitmap(mRoundedCornerBitmap, mMatrix, mBackgroundClipPaint);
-        }
-
-        canvas.restoreToCount(saveCount);
-    }
-
-    /**
-     * Creates a round rect drawable (with the specified corners unrounded)
-     * and sets it as this View's background.
-     */
-    public void setBackgroundWithCorners(int color, @RoundedCornerFlags int roundedCorners) {
-        mRoundedCorners = roundedCorners;
-        float rTop = (roundedCorners & ROUNDED_TOP_CORNERS) == 0 ? 0 : getBackgroundRadius();
-        float rBot = (roundedCorners & ROUNDED_BOTTOM_CORNERS) == 0 ? 0 : getBackgroundRadius();
-        float[] radii = new float[] {rTop, rTop, rTop, rTop, rBot, rBot, rBot, rBot};
-        ShapeDrawable roundRectBackground = new ShapeDrawable(new RoundRectShape(radii, null, null));
-        roundRectBackground.getPaint().setColor(color);
-        setBackground(roundRectBackground);
-    }
-
-    protected float getBackgroundRadius() {
-        return getResources().getDimensionPixelSize(R.dimen.bg_round_rect_radius);
-    }
-}
diff --git a/src/com/android/launcher3/popup/PopupPopulator.java b/src/com/android/launcher3/popup/PopupPopulator.java
index 0dc1ca0..6c83d12 100644
--- a/src/com/android/launcher3/popup/PopupPopulator.java
+++ b/src/com/android/launcher3/popup/PopupPopulator.java
@@ -17,23 +17,17 @@
 package com.android.launcher3.popup;
 
 import android.content.ComponentName;
-import android.content.Context;
 import android.os.Handler;
 import android.os.UserHandle;
 import android.service.notification.StatusBarNotification;
-import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.annotation.VisibleForTesting;
-import android.view.View;
-import android.widget.ImageView;
 
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.Launcher;
-import com.android.launcher3.R;
 import com.android.launcher3.ShortcutInfo;
 import com.android.launcher3.graphics.LauncherIcons;
 import com.android.launcher3.notification.NotificationInfo;
-import com.android.launcher3.notification.NotificationItemView;
 import com.android.launcher3.notification.NotificationKeyData;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
 import com.android.launcher3.shortcuts.DeepShortcutView;
@@ -56,55 +50,6 @@
     @VisibleForTesting static final int NUM_DYNAMIC = 2;
     public static final int MAX_SHORTCUTS_IF_NOTIFICATIONS = 2;
 
-    public enum Item {
-        SHORTCUT(R.layout.deep_shortcut, true),
-        NOTIFICATION(R.layout.notification, false),
-        SYSTEM_SHORTCUT(R.layout.system_shortcut, true),
-        SYSTEM_SHORTCUT_ICON(R.layout.system_shortcut_icon_only, true);
-
-        public final int layoutId;
-        public final boolean isShortcut;
-
-        Item(int layoutId, boolean isShortcut) {
-            this.layoutId = layoutId;
-            this.isShortcut = isShortcut;
-        }
-    }
-
-    public static @NonNull Item[] getItemsToPopulate(@NonNull List<String> shortcutIds,
-            @NonNull List<NotificationKeyData> notificationKeys,
-            @NonNull List<SystemShortcut> systemShortcuts) {
-        boolean hasNotifications = notificationKeys.size() > 0;
-        int numNotificationItems = hasNotifications ? 1 : 0;
-        int numShortcuts = shortcutIds.size();
-        int numItems = Math.min(MAX_SHORTCUTS, numShortcuts) + numNotificationItems
-                + systemShortcuts.size();
-        Item[] items = new Item[numItems];
-        for (int i = 0; i < numItems; i++) {
-            items[i] = Item.SHORTCUT;
-        }
-        if (hasNotifications) {
-            // The notification layout is always first.
-            items[0] = Item.NOTIFICATION;
-        }
-        // The system shortcuts are always last.
-        boolean iconsOnly = !shortcutIds.isEmpty();
-        for (int i = 0; i < systemShortcuts.size(); i++) {
-            items[numItems - 1 - i] = iconsOnly ? Item.SYSTEM_SHORTCUT_ICON : Item.SYSTEM_SHORTCUT;
-        }
-        return items;
-    }
-
-    public static Item[] reverseItems(Item[] items) {
-        if (items == null) return null;
-        int numItems = items.length;
-        Item[] reversedArray = new Item[numItems];
-        for (int i = 0; i < numItems; i++) {
-            reversedArray[i] = items[numItems - i - 1];
-        }
-        return reversedArray;
-    }
-
     /**
      * Sorts shortcuts in rank order, with manifest shortcuts coming before dynamic shortcuts.
      */
@@ -179,137 +124,42 @@
     public static Runnable createUpdateRunnable(final Launcher launcher, final ItemInfo originalInfo,
             final Handler uiHandler, final PopupContainerWithArrow container,
             final List<String> shortcutIds, final List<DeepShortcutView> shortcutViews,
-            final List<NotificationKeyData> notificationKeys,
-            final NotificationItemView notificationView, final List<SystemShortcut> systemShortcuts,
-            final List<View> systemShortcutViews) {
+            final List<NotificationKeyData> notificationKeys) {
         final ComponentName activity = originalInfo.getTargetComponent();
         final UserHandle user = originalInfo.user;
-        return new Runnable() {
-            @Override
-            public void run() {
-                if (notificationView != null) {
-                    List<StatusBarNotification> notifications = launcher.getPopupDataProvider()
-                            .getStatusBarNotificationsForKeys(notificationKeys);
-                    List<NotificationInfo> infos = new ArrayList<>(notifications.size());
-                    for (int i = 0; i < notifications.size(); i++) {
-                        StatusBarNotification notification = notifications.get(i);
-                        infos.add(new NotificationInfo(launcher, notification));
-                    }
-                    uiHandler.post(new UpdateNotificationChild(notificationView, infos));
+        return () -> {
+            if (!notificationKeys.isEmpty()) {
+                List<StatusBarNotification> notifications = launcher.getPopupDataProvider()
+                        .getStatusBarNotificationsForKeys(notificationKeys);
+                List<NotificationInfo> infos = new ArrayList<>(notifications.size());
+                for (int i = 0; i < notifications.size(); i++) {
+                    StatusBarNotification notification = notifications.get(i);
+                    infos.add(new NotificationInfo(launcher, notification));
                 }
-
-                List<ShortcutInfoCompat> shortcuts = DeepShortcutManager.getInstance(launcher)
-                        .queryForShortcutsContainer(activity, shortcutIds, user);
-                String shortcutIdToDeDupe = notificationKeys.isEmpty() ? null
-                        : notificationKeys.get(0).shortcutId;
-                shortcuts = PopupPopulator.sortAndFilterShortcuts(shortcuts, shortcutIdToDeDupe);
-                for (int i = 0; i < shortcuts.size() && i < shortcutViews.size(); i++) {
-                    final ShortcutInfoCompat shortcut = shortcuts.get(i);
-                    ShortcutInfo si = new ShortcutInfo(shortcut, launcher);
-                    // Use unbadged icon for the menu.
-                    si.iconBitmap = LauncherIcons.createShortcutIcon(
-                            shortcut, launcher, false /* badged */);
-                    si.rank = i;
-                    uiHandler.post(new UpdateShortcutChild(container, shortcutViews.get(i),
-                            si, shortcut));
-                }
-
-                // This ensures that mLauncher.getWidgetsForPackageUser()
-                // doesn't return null (it puts all the widgets in memory).
-                for (int i = 0; i < systemShortcuts.size(); i++) {
-                    final SystemShortcut systemShortcut = systemShortcuts.get(i);
-                    uiHandler.post(new UpdateSystemShortcutChild(container,
-                            systemShortcutViews.get(i), systemShortcut, launcher, originalInfo));
-                }
-                uiHandler.post(new Runnable() {
-                    @Override
-                    public void run() {
-                        launcher.refreshAndBindWidgetsForPackageUser(
-                                PackageUserKey.fromItemInfo(originalInfo));
-                    }
-                });
+                uiHandler.post(() -> container.applyNotificationInfos(infos));
             }
+
+            List<ShortcutInfoCompat> shortcuts = DeepShortcutManager.getInstance(launcher)
+                    .queryForShortcutsContainer(activity, shortcutIds, user);
+            String shortcutIdToDeDupe = notificationKeys.isEmpty() ? null
+                    : notificationKeys.get(0).shortcutId;
+            shortcuts = PopupPopulator.sortAndFilterShortcuts(shortcuts, shortcutIdToDeDupe);
+            for (int i = 0; i < shortcuts.size() && i < shortcutViews.size(); i++) {
+                final ShortcutInfoCompat shortcut = shortcuts.get(i);
+                final ShortcutInfo si = new ShortcutInfo(shortcut, launcher);
+                // Use unbadged icon for the menu.
+                si.iconBitmap = LauncherIcons.createShortcutIcon(
+                        shortcut, launcher, false /* badged */);
+                si.rank = i;
+
+                final DeepShortcutView view = shortcutViews.get(i);
+                uiHandler.post(() -> view.applyShortcutInfo(si, shortcut, container));
+            }
+
+            // This ensures that mLauncher.getWidgetsForPackageUser()
+            // doesn't return null (it puts all the widgets in memory).
+            uiHandler.post(() -> launcher.refreshAndBindWidgetsForPackageUser(
+                    PackageUserKey.fromItemInfo(originalInfo)));
         };
     }
-
-    /** Updates the shortcut child of this container based on the given shortcut info. */
-    private static class UpdateShortcutChild implements Runnable {
-        private final PopupContainerWithArrow mContainer;
-        private final DeepShortcutView mShortcutChild;
-        private final ShortcutInfo mShortcutChildInfo;
-        private final ShortcutInfoCompat mDetail;
-
-        public UpdateShortcutChild(PopupContainerWithArrow container, DeepShortcutView shortcutChild,
-                ShortcutInfo shortcutChildInfo, ShortcutInfoCompat detail) {
-            mContainer = container;
-            mShortcutChild = shortcutChild;
-            mShortcutChildInfo = shortcutChildInfo;
-            mDetail = detail;
-        }
-
-        @Override
-        public void run() {
-            mShortcutChild.applyShortcutInfo(mShortcutChildInfo, mDetail,
-                    mContainer.mShortcutsItemView);
-        }
-    }
-
-    /** Updates the notification child based on the given notification info. */
-    private static class UpdateNotificationChild implements Runnable {
-        private NotificationItemView mNotificationView;
-        private List<NotificationInfo> mNotificationInfos;
-
-        public UpdateNotificationChild(NotificationItemView notificationView,
-                List<NotificationInfo> notificationInfos) {
-            mNotificationView = notificationView;
-            mNotificationInfos = notificationInfos;
-        }
-
-        @Override
-        public void run() {
-            mNotificationView.applyNotificationInfos(mNotificationInfos);
-        }
-    }
-
-    /** Updates the system shortcut child based on the given shortcut info. */
-    private static class UpdateSystemShortcutChild implements Runnable {
-
-        private final PopupContainerWithArrow mContainer;
-        private final View mSystemShortcutChild;
-        private final SystemShortcut mSystemShortcutInfo;
-        private final Launcher mLauncher;
-        private final ItemInfo mItemInfo;
-
-        public UpdateSystemShortcutChild(PopupContainerWithArrow container, View systemShortcutChild,
-                SystemShortcut systemShortcut, Launcher launcher, ItemInfo originalInfo) {
-            mContainer = container;
-            mSystemShortcutChild = systemShortcutChild;
-            mSystemShortcutInfo = systemShortcut;
-            mLauncher = launcher;
-            mItemInfo = originalInfo;
-        }
-
-        @Override
-        public void run() {
-            final Context context = mSystemShortcutChild.getContext();
-            initializeSystemShortcut(context, mSystemShortcutChild, mSystemShortcutInfo);
-            mSystemShortcutChild.setOnClickListener(mSystemShortcutInfo
-                    .getOnClickListener(mLauncher, mItemInfo));
-        }
-    }
-
-    public static void initializeSystemShortcut(Context context, View view, SystemShortcut info) {
-        if (view instanceof DeepShortcutView) {
-            // Expanded system shortcut, with both icon and text shown on white background.
-            final DeepShortcutView shortcutView = (DeepShortcutView) view;
-            shortcutView.getIconView().setBackground(info.getIcon(context));
-            shortcutView.getBubbleText().setText(info.getLabel(context));
-        } else if (view instanceof ImageView) {
-            // Only the system shortcut icon shows on a gray background header.
-            final ImageView shortcutIcon = (ImageView) view;
-            shortcutIcon.setImageDrawable(info.getIcon(context));
-            shortcutIcon.setContentDescription(info.getLabel(context));
-        }
-        view.setTag(info);
-    }
 }
diff --git a/src/com/android/launcher3/popup/SystemShortcut.java b/src/com/android/launcher3/popup/SystemShortcut.java
index e709b93..c398aaa 100644
--- a/src/com/android/launcher3/popup/SystemShortcut.java
+++ b/src/com/android/launcher3/popup/SystemShortcut.java
@@ -1,9 +1,7 @@
 package com.android.launcher3.popup;
 
-import android.content.Context;
 import android.content.Intent;
 import android.graphics.Rect;
-import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.view.View;
 
@@ -31,20 +29,12 @@
  * Example system shortcuts, defined as inner classes, include Widgets and AppInfo.
  */
 public abstract class SystemShortcut extends ItemInfo {
-    private final int mIconResId;
-    private final int mLabelResId;
+    public final int iconResId;
+    public final int labelResId;
 
     public SystemShortcut(int iconResId, int labelResId) {
-        mIconResId = iconResId;
-        mLabelResId = labelResId;
-    }
-
-    public Drawable getIcon(Context context) {
-        return context.getResources().getDrawable(mIconResId, context.getTheme());
-    }
-
-    public String getLabel(Context context) {
-        return context.getString(mLabelResId);
+        this.iconResId = iconResId;
+        this.labelResId = labelResId;
     }
 
     public abstract View.OnClickListener getOnClickListener(final Launcher launcher,
diff --git a/src/com/android/launcher3/shortcuts/DeepShortcutView.java b/src/com/android/launcher3/shortcuts/DeepShortcutView.java
index 75a4886..450a690 100644
--- a/src/com/android/launcher3/shortcuts/DeepShortcutView.java
+++ b/src/com/android/launcher3/shortcuts/DeepShortcutView.java
@@ -29,6 +29,7 @@
 import com.android.launcher3.R;
 import com.android.launcher3.ShortcutInfo;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.popup.PopupContainerWithArrow;
 
 /**
  * A {@link android.widget.FrameLayout} that contains a {@link DeepShortcutView}.
@@ -42,6 +43,7 @@
 
     private BubbleTextView mBubbleText;
     private View mIconView;
+    private View mDivider;
 
     private ShortcutInfo mInfo;
     private ShortcutInfoCompat mDetail;
@@ -65,6 +67,11 @@
         super.onFinishInflate();
         mBubbleText = findViewById(R.id.bubble_text);
         mIconView = findViewById(R.id.icon);
+        mDivider = findViewById(R.id.divider);
+    }
+
+    public void setDividerVisibility(int visibility) {
+        mDivider.setVisibility(visibility);
     }
 
     public BubbleTextView getBubbleText() {
@@ -98,7 +105,7 @@
 
     /** package private **/
     public void applyShortcutInfo(ShortcutInfo info, ShortcutInfoCompat detail,
-            ShortcutsItemView container) {
+            PopupContainerWithArrow container) {
         mInfo = info;
         mDetail = detail;
         mBubbleText.applyFromShortcutInfo(info);
diff --git a/src/com/android/launcher3/shortcuts/ShortcutsItemView.java b/src/com/android/launcher3/shortcuts/ShortcutsItemView.java
deleted file mode 100644
index b4fa04e..0000000
--- a/src/com/android/launcher3/shortcuts/ShortcutsItemView.java
+++ /dev/null
@@ -1,340 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.launcher3.shortcuts;
-
-import android.animation.Animator;
-import android.animation.AnimatorSet;
-import android.animation.ObjectAnimator;
-import android.content.Context;
-import android.graphics.Point;
-import android.graphics.Rect;
-import android.util.AttributeSet;
-import android.util.Log;
-import android.view.MotionEvent;
-import android.view.View;
-import android.widget.LinearLayout;
-
-import com.android.launcher3.AbstractFloatingView;
-import com.android.launcher3.BubbleTextView;
-import com.android.launcher3.ItemInfo;
-import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherAnimUtils;
-import com.android.launcher3.R;
-import com.android.launcher3.anim.PropertyListBuilder;
-import com.android.launcher3.anim.RoundedRectRevealOutlineProvider;
-import com.android.launcher3.dragndrop.DragOptions;
-import com.android.launcher3.dragndrop.DragView;
-import com.android.launcher3.logging.UserEventDispatcher.LogContainerProvider;
-import com.android.launcher3.popup.PopupContainerWithArrow;
-import com.android.launcher3.popup.PopupItemView;
-import com.android.launcher3.popup.PopupPopulator;
-import com.android.launcher3.popup.SystemShortcut;
-import com.android.launcher3.userevent.nano.LauncherLogProto;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-
-/**
- * A {@link PopupItemView} that contains all of the {@link DeepShortcutView}s for an app,
- * as well as the system shortcuts such as Widgets and App Info.
- */
-public class ShortcutsItemView extends PopupItemView implements View.OnLongClickListener,
-        View.OnTouchListener, LogContainerProvider {
-
-    private static final String TAG = "ShortcutsItem";
-
-    private Launcher mLauncher;
-    private LinearLayout mContent;
-    private LinearLayout mShortcutsLayout;
-    private LinearLayout mSystemShortcutIcons;
-    private final Point mIconShift = new Point();
-    private final Point mIconLastTouchPos = new Point();
-    private final List<DeepShortcutView> mDeepShortcutViews = new ArrayList<>();
-    private final List<View> mSystemShortcutViews = new ArrayList<>();
-
-    private int mHiddenShortcutsHeight;
-
-    public ShortcutsItemView(Context context) {
-        this(context, null, 0);
-    }
-
-    public ShortcutsItemView(Context context, AttributeSet attrs) {
-        this(context, attrs, 0);
-    }
-
-    public ShortcutsItemView(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-
-        mLauncher = Launcher.getLauncher(context);
-    }
-
-    @Override
-    protected void onFinishInflate() {
-        super.onFinishInflate();
-        mContent = findViewById(R.id.content);
-        mShortcutsLayout = findViewById(R.id.shortcuts);
-    }
-
-    @Override
-    public boolean onTouch(View v, MotionEvent ev) {
-        // Touched a shortcut, update where it was touched so we can drag from there on long click.
-        switch (ev.getAction()) {
-            case MotionEvent.ACTION_DOWN:
-            case MotionEvent.ACTION_MOVE:
-                mIconLastTouchPos.set((int) ev.getX(), (int) ev.getY());
-                break;
-        }
-        return false;
-    }
-
-    @Override
-    public boolean onLongClick(View v) {
-        // Return early if not the correct view
-        if (!(v.getParent() instanceof DeepShortcutView)) return false;
-        // Return early if global dragging is not enabled
-        if (!mLauncher.isDraggingEnabled()) return false;
-        // Return early if an item is already being dragged (e.g. when long-pressing two shortcuts)
-        if (mLauncher.getDragController().isDragging()) return false;
-
-        // Long clicked on a shortcut.
-        DeepShortcutView sv = (DeepShortcutView) v.getParent();
-        sv.setWillDrawIcon(false);
-
-        // Move the icon to align with the center-top of the touch point
-        mIconShift.x = mIconLastTouchPos.x - sv.getIconCenter().x;
-        mIconShift.y = mIconLastTouchPos.y - mLauncher.getDeviceProfile().iconSizePx;
-
-        DragView dv = mLauncher.getWorkspace().beginDragShared(sv.getIconView(),
-                (PopupContainerWithArrow) getParent(), sv.getFinalInfo(),
-                new ShortcutDragPreviewProvider(sv.getIconView(), mIconShift), new DragOptions());
-        dv.animateShift(-mIconShift.x, -mIconShift.y);
-
-        // TODO: support dragging from within folder without having to close it
-        AbstractFloatingView.closeOpenContainer(mLauncher, AbstractFloatingView.TYPE_FOLDER);
-        return false;
-    }
-
-    public void addShortcutView(View shortcutView, PopupPopulator.Item shortcutType) {
-        addShortcutView(shortcutView, shortcutType, -1);
-    }
-
-    private void addShortcutView(View shortcutView, PopupPopulator.Item shortcutType, int index) {
-        if (shortcutType == PopupPopulator.Item.SHORTCUT) {
-            mDeepShortcutViews.add((DeepShortcutView) shortcutView);
-        } else {
-            mSystemShortcutViews.add(shortcutView);
-        }
-        if (shortcutType == PopupPopulator.Item.SYSTEM_SHORTCUT_ICON) {
-            // System shortcut icons are added to a header that is separate from the full shortcuts.
-            if (mSystemShortcutIcons == null) {
-                mSystemShortcutIcons = (LinearLayout) mLauncher.getLayoutInflater().inflate(
-                        R.layout.system_shortcut_icons, mContent, false);
-                boolean iconsAreBelowShortcuts = mShortcutsLayout.getChildCount() > 0;
-                mContent.addView(mSystemShortcutIcons, iconsAreBelowShortcuts ? -1 : 0);
-            }
-            mSystemShortcutIcons.addView(shortcutView, index);
-        } else {
-            if (mShortcutsLayout.getChildCount() > 0) {
-                View prevChild = mShortcutsLayout.getChildAt(mShortcutsLayout.getChildCount() - 1);
-                if (prevChild instanceof DeepShortcutView) {
-                    prevChild.findViewById(R.id.divider).setVisibility(VISIBLE);
-                }
-            }
-            mShortcutsLayout.addView(shortcutView, index);
-        }
-    }
-
-    public List<DeepShortcutView> getDeepShortcutViews(boolean reverseOrder) {
-        if (reverseOrder) {
-            Collections.reverse(mDeepShortcutViews);
-        }
-        return mDeepShortcutViews;
-    }
-
-    public List<View> getSystemShortcutViews(boolean reverseOrder) {
-        // Always reverse system shortcut icons (in the header)
-        // so they are in priority order from right to left.
-        if (reverseOrder || mSystemShortcutIcons != null) {
-            Collections.reverse(mSystemShortcutViews);
-        }
-        return mSystemShortcutViews;
-    }
-
-    /**
-     * Hides shortcuts until only {@param maxShortcuts} are showing. Also sets
-     * {@link #mHiddenShortcutsHeight} to be the amount of extra space that shortcuts will
-     * require when {@link #showAllShortcuts(boolean)} is called.
-     */
-    public void hideShortcuts(boolean hideFromTop, int maxShortcuts) {
-        // When shortcuts are shown, they get more space allocated to them.
-        final int oldHeight = mShortcutsLayout.getChildAt(0).getLayoutParams().height;
-        final int newHeight = getResources().getDimensionPixelSize(R.dimen.bg_popup_item_height);
-        mHiddenShortcutsHeight = (newHeight - oldHeight) * mShortcutsLayout.getChildCount();
-
-        int numToHide = mShortcutsLayout.getChildCount() - maxShortcuts;
-        if (numToHide <= 0) {
-            return;
-        }
-        final int numShortcuts = mShortcutsLayout.getChildCount();
-        final int dir = hideFromTop ? 1 : -1;
-        for (int i = hideFromTop ? 0 : numShortcuts - 1; 0 <= i && i < numShortcuts; i += dir) {
-            View child = mShortcutsLayout.getChildAt(i);
-            if (child instanceof DeepShortcutView) {
-                mHiddenShortcutsHeight += child.getLayoutParams().height;
-                child.setVisibility(GONE);
-                int prev = i + dir;
-                if (!hideFromTop && 0 <= prev && prev < numShortcuts) {
-                    // When hiding views from the bottom, make sure to hide the last divider.
-                    mShortcutsLayout.getChildAt(prev).findViewById(R.id.divider).setVisibility(GONE);
-                }
-                numToHide--;
-                if (numToHide == 0) {
-                    break;
-                }
-            }
-        }
-    }
-
-    public int getHiddenShortcutsHeight() {
-        return mHiddenShortcutsHeight;
-    }
-
-    /**
-     * Sets all shortcuts in {@link #mShortcutsLayout} to VISIBLE, then creates an
-     * animation to reveal the newly shown shortcuts.
-     *
-     * @see #hideShortcuts(boolean, int)
-     */
-    public Animator showAllShortcuts(boolean showFromTop) {
-        // First set all the shortcuts to VISIBLE.
-        final int numShortcuts = mShortcutsLayout.getChildCount();
-        if (numShortcuts == 0) {
-            Log.w(TAG, "Tried to show all shortcuts but there were no shortcuts to show");
-            return null;
-        }
-        final int oldHeight = mShortcutsLayout.getChildAt(0).getLayoutParams().height;
-        final int newHeight = getResources().getDimensionPixelSize(R.dimen.bg_popup_item_height);
-        for (int i = 0; i < numShortcuts; i++) {
-            DeepShortcutView view = (DeepShortcutView) mShortcutsLayout.getChildAt(i);
-            view.getLayoutParams().height = newHeight;
-            view.requestLayout();
-            view.setVisibility(VISIBLE);
-            if (i < numShortcuts - 1) {
-                view.findViewById(R.id.divider).setVisibility(VISIBLE);
-            }
-        }
-
-        // Now reveal the newly shown shortcuts.
-        AnimatorSet animation = LauncherAnimUtils.createAnimatorSet();
-
-        if (showFromTop) {
-            // The new shortcuts pushed the original shortcuts down, but we want to animate them
-            // to that position. So we revert the translation and animate to the new.
-            animation.play(translateYFrom(mShortcutsLayout, -mHiddenShortcutsHeight));
-        } else if (mSystemShortcutIcons != null) {
-            // When adding the shortcuts from the bottom, things are a little trickier, since
-            // that means they push the icons header down. To account for this, we do the same
-            // translation trick as above, but on the header. Since this means leaving behind
-            // a blank area where the header was, we also need to clip the background.
-            animation.play(translateYFrom(mSystemShortcutIcons, -mHiddenShortcutsHeight));
-            // mPillRect is the bounds of this view before the new shortcuts were shown.
-            Rect backgroundStartRect = new Rect(mPillRect);
-            Rect backgroundEndRect = new Rect(mPillRect);
-            backgroundEndRect.bottom += mHiddenShortcutsHeight;
-            animation.play(new RoundedRectRevealOutlineProvider(getBackgroundRadius(),
-                    getBackgroundRadius(), backgroundStartRect, backgroundEndRect, mRoundedCorners)
-                    .createRevealAnimator(this, false));
-        }
-        for (int i = 0; i < numShortcuts; i++) {
-            // Animate each shortcut to its new height.
-            DeepShortcutView shortcut = (DeepShortcutView) mShortcutsLayout.getChildAt(i);
-            int heightDiff = newHeight - oldHeight;
-            int heightAdjustmentIndex = showFromTop ? numShortcuts - i - 1 : i;
-            int fromDir = showFromTop ? 1 : -1;
-            animation.play(translateYFrom(shortcut, heightDiff * heightAdjustmentIndex * fromDir));
-            // Make sure the text and icon stay centered in the shortcut.
-            animation.play(translateYFrom(shortcut.getBubbleText(), heightDiff / 2 * fromDir));
-            animation.play(translateYFrom(shortcut.getIconView(), heightDiff / 2 * fromDir));
-            // Scale icons back up to full size.
-            animation.play(LauncherAnimUtils.ofPropertyValuesHolder(shortcut.getIconView(),
-                    new PropertyListBuilder().scale(1f).build()));
-        }
-        return animation;
-    }
-
-    /**
-     * Animates the translationY of the view from the given offset to the view's current translation
-     * @return an Animator, which should be started by the caller.
-     */
-    private Animator translateYFrom(View v, int diff) {
-        float finalY = v.getTranslationY();
-        return ObjectAnimator.ofFloat(v, TRANSLATION_Y, finalY + diff, finalY);
-    }
-
-    /**
-     * Adds a {@link SystemShortcut.Widgets} item if there are widgets for the given ItemInfo.
-     */
-    public void enableWidgetsIfExist(final BubbleTextView originalIcon) {
-        ItemInfo itemInfo = (ItemInfo) originalIcon.getTag();
-        SystemShortcut widgetInfo = new SystemShortcut.Widgets();
-        View.OnClickListener onClickListener = widgetInfo.getOnClickListener(mLauncher, itemInfo);
-        View widgetsView = null;
-        for (View systemShortcutView : mSystemShortcutViews) {
-            if (systemShortcutView.getTag() instanceof SystemShortcut.Widgets) {
-                widgetsView = systemShortcutView;
-                break;
-            }
-        }
-        final PopupPopulator.Item widgetsItem = mSystemShortcutIcons == null
-                ? PopupPopulator.Item.SYSTEM_SHORTCUT
-                : PopupPopulator.Item.SYSTEM_SHORTCUT_ICON;
-        if (onClickListener != null && widgetsView == null) {
-            // We didn't have any widgets cached but now there are some, so enable the shortcut.
-            widgetsView = mLauncher.getLayoutInflater().inflate(widgetsItem.layoutId, this, false);
-            PopupPopulator.initializeSystemShortcut(getContext(), widgetsView, widgetInfo);
-            widgetsView.setOnClickListener(onClickListener);
-            if (widgetsItem == PopupPopulator.Item.SYSTEM_SHORTCUT_ICON) {
-                addShortcutView(widgetsView, widgetsItem, 0);
-            } else {
-                // If using the expanded system shortcut (as opposed to just the icon), we need to
-                // reopen the container to ensure measurements etc. all work out. While this could
-                // be quite janky, in practice the user would typically see a small flicker as the
-                // animation restarts partway through, and this is a very rare edge case anyway.
-                ((PopupContainerWithArrow) getParent()).close(false);
-                PopupContainerWithArrow.showForIcon(originalIcon);
-            }
-        } else if (onClickListener == null && widgetsView != null) {
-            // No widgets exist, but we previously added the shortcut so remove it.
-            if (widgetsItem == PopupPopulator.Item.SYSTEM_SHORTCUT_ICON) {
-                mSystemShortcutViews.remove(widgetsView);
-                mSystemShortcutIcons.removeView(widgetsView);
-            } else {
-                ((PopupContainerWithArrow) getParent()).close(false);
-                PopupContainerWithArrow.showForIcon(originalIcon);
-            }
-        }
-    }
-
-    @Override
-    public void fillInLogContainerData(View v, ItemInfo info, LauncherLogProto.Target target,
-            LauncherLogProto.Target targetParent) {
-        target.itemType = LauncherLogProto.ItemType.DEEPSHORTCUT;
-        target.rank = info.rank;
-        targetParent.containerType = LauncherLogProto.ContainerType.DEEPSHORTCUTS;
-    }
-}
diff --git a/src/com/android/launcher3/states/AllAppsState.java b/src/com/android/launcher3/states/AllAppsState.java
new file mode 100644
index 0000000..ed3023a
--- /dev/null
+++ b/src/com/android/launcher3/states/AllAppsState.java
@@ -0,0 +1,60 @@
+/*
+ * 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.states;
+
+import static com.android.launcher3.LauncherAnimUtils.ALL_APPS_TRANSITION_MS;
+
+import android.view.View;
+
+import com.android.launcher3.AbstractFloatingView;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.R;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
+
+/**
+ * Definition for AllApps state
+ */
+public class AllAppsState extends LauncherState {
+
+    public static final String APPS_VIEW_SHOWN = "launcher.apps_view_shown";
+
+    private static final int STATE_FLAGS = FLAG_DISABLE_ACCESSIBILITY;
+
+    public AllAppsState(int id) {
+        super(id, ContainerType.ALLAPPS, ALL_APPS_TRANSITION_MS, 0f, STATE_FLAGS);
+    }
+
+    @Override
+    public void onStateEnabled(Launcher launcher) {
+        if (!launcher.getSharedPrefs().getBoolean(APPS_VIEW_SHOWN, false)) {
+            launcher.getSharedPrefs().edit().putBoolean(APPS_VIEW_SHOWN, true).apply();
+        }
+
+        AbstractFloatingView.closeAllOpenViews(launcher);
+        dispatchWindowStateChanged(launcher);
+    }
+
+    @Override
+    public String getDescription(Launcher launcher) {
+        return launcher.getString(R.string.all_apps_button_label);
+    }
+
+    @Override
+    public View getFinalFocus(Launcher launcher) {
+        return launcher.getAppsView();
+    }
+}
diff --git a/src/com/android/launcher3/states/InternalStateHandler.java b/src/com/android/launcher3/states/InternalStateHandler.java
new file mode 100644
index 0000000..f084fd2
--- /dev/null
+++ b/src/com/android/launcher3/states/InternalStateHandler.java
@@ -0,0 +1,68 @@
+/*
+ * 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.states;
+
+import android.content.Intent;
+import android.os.Binder;
+import android.os.Bundle;
+import android.os.IBinder;
+
+import com.android.launcher3.Launcher;
+import com.android.launcher3.Launcher.OnResumeCallback;
+
+/**
+ * Utility class to sending state handling logic to Launcher from within the same process.
+ *
+ * Extending {@link Binder} ensures that the platform maintains a single instance of each object
+ * which allows this object to safely navigate the system process.
+ */
+public abstract class InternalStateHandler extends Binder implements OnResumeCallback {
+
+    public static final String EXTRA_STATE_HANDLER = "launcher.state_handler";
+
+    protected abstract void init(Launcher launcher, boolean alreadyOnHome);
+
+    public final Intent addToIntent(Intent intent) {
+        Bundle extras = new Bundle();
+        extras.putBinder(EXTRA_STATE_HANDLER, this);
+        intent.putExtras(extras);
+        return intent;
+    }
+
+    public static boolean handleCreate(Launcher launcher, Intent intent) {
+        return handleIntent(launcher, intent, false);
+    }
+
+    public static boolean handleNewIntent(Launcher launcher, Intent intent, boolean alreadyOnHome) {
+        return handleIntent(launcher, intent, alreadyOnHome);
+    }
+
+    private static boolean handleIntent(
+            Launcher launcher, Intent intent, boolean alreadyOnHome) {
+        boolean result = false;
+        if (intent != null && intent.getExtras() != null) {
+            IBinder stateBinder = intent.getExtras().getBinder(EXTRA_STATE_HANDLER);
+            if (stateBinder instanceof InternalStateHandler) {
+                InternalStateHandler handler = (InternalStateHandler) stateBinder;
+                launcher.setOnResumeCallback(handler);
+                handler.init(launcher, alreadyOnHome);
+                result = true;
+            }
+            intent.getExtras().remove(EXTRA_STATE_HANDLER);
+        }
+        return result;
+    }
+}
diff --git a/src/com/android/launcher3/states/SpringLoadedState.java b/src/com/android/launcher3/states/SpringLoadedState.java
new file mode 100644
index 0000000..3864e3a
--- /dev/null
+++ b/src/com/android/launcher3/states/SpringLoadedState.java
@@ -0,0 +1,114 @@
+/*
+ * 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.states;
+
+import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_TRANSITION_MS;
+
+import android.content.pm.ActivityInfo;
+import android.graphics.Rect;
+import android.os.Handler;
+import android.view.View;
+
+import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.InstallShortcutReceiver;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.Workspace;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
+
+/**
+ * Definition for spring loaded state used during drag and drop.
+ */
+public class SpringLoadedState extends LauncherState {
+
+    private static final int STATE_FLAGS = FLAG_SHOW_SCRIM | FLAG_MULTI_PAGE |
+            FLAG_DISABLE_ACCESSIBILITY | FLAG_DO_NOT_RESTORE;
+
+    // Determines how long to wait after a rotation before restoring the screen orientation to
+    // match the sensor state.
+    private static final int RESTORE_SCREEN_ORIENTATION_DELAY = 500;
+
+    public SpringLoadedState(int id) {
+        super(id, ContainerType.OVERVIEW, SPRING_LOADED_TRANSITION_MS, 1f, STATE_FLAGS);
+    }
+
+    @Override
+    public float[] getWorkspaceScaleAndTranslation(Launcher launcher) {
+        DeviceProfile grid = launcher.getDeviceProfile();
+        Workspace ws = launcher.getWorkspace();
+        if (grid.isVerticalBarLayout() || ws.getChildCount() == 0) {
+            return super.getWorkspaceScaleAndTranslation(launcher);
+        }
+
+        float scale = grid.workspaceSpringLoadShrinkFactor;
+        Rect insets = launcher.getDragLayer().getInsets();
+
+        float scaledHeight = scale * ws.getNormalChildHeight();
+        float shrunkTop = insets.top + grid.dropTargetBarSizePx;
+        float shrunkBottom = ws.getViewportHeight() - insets.bottom
+                - grid.getWorkspacePadding(null).bottom
+                - grid.workspaceSpringLoadedBottomSpace;
+        float totalShrunkSpace = shrunkBottom - shrunkTop;
+
+        float desiredCellTop = shrunkTop + (totalShrunkSpace - scaledHeight) / 2;
+
+        float halfHeight = ws.getHeight() / 2;
+        float myCenter = ws.getTop() + halfHeight;
+        float cellTopFromCenter = halfHeight - ws.getChildAt(0).getTop();
+        float actualCellTop = myCenter - cellTopFromCenter * scale;
+        return new float[] { scale, (desiredCellTop - actualCellTop) / scale};
+    }
+
+    @Override
+    public void onStateEnabled(Launcher launcher) {
+        Workspace ws = launcher.getWorkspace();
+        ws.showPageIndicatorAtCurrentScroll();
+        ws.getPageIndicator().setShouldAutoHide(false);
+
+        // Lock the orientation:
+        if (launcher.isRotationEnabled()) {
+            launcher.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LOCKED);
+        }
+
+        // Prevent any Un/InstallShortcutReceivers from updating the db while we are
+        // in spring loaded mode
+        InstallShortcutReceiver.enableInstallQueue(InstallShortcutReceiver.FLAG_DRAG_AND_DROP);
+    }
+
+    @Override
+    public void onStateDisabled(final Launcher launcher) {
+        launcher.getWorkspace().getPageIndicator().setShouldAutoHide(true);
+
+        // Unlock rotation lock
+        if (launcher.isRotationEnabled()) {
+            new Handler().postDelayed(new Runnable() {
+                @Override
+                public void run() {
+                    launcher.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
+                }
+            }, RESTORE_SCREEN_ORIENTATION_DELAY);
+        }
+
+        // Re-enable any Un/InstallShortcutReceiver and now process any queued items
+        InstallShortcutReceiver.disableAndFlushInstallQueue(
+                InstallShortcutReceiver.FLAG_DRAG_AND_DROP, launcher);
+    }
+
+    @Override
+    public View getFinalFocus(Launcher launcher) {
+        return null;
+    }
+}
diff --git a/src/com/android/launcher3/testing/LauncherExtension.java b/src/com/android/launcher3/testing/LauncherExtension.java
deleted file mode 100644
index c40e1fb..0000000
--- a/src/com/android/launcher3/testing/LauncherExtension.java
+++ /dev/null
@@ -1,128 +0,0 @@
-package com.android.launcher3.testing;
-
-import android.content.Intent;
-import android.os.Bundle;
-import android.view.Menu;
-
-import com.android.launcher3.AppInfo;
-import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherCallbacks;
-
-import java.io.FileDescriptor;
-import java.io.PrintWriter;
-import java.util.ArrayList;
-
-/**
- * This class represents a very trivial LauncherExtension. It primarily serves as a simple
- * class to exercise the LauncherOverlay interface.
- */
-public class LauncherExtension extends Launcher {
-
-    //------ Activity methods -------//
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        setLauncherCallbacks(new LauncherExtensionCallbacks());
-        super.onCreate(savedInstanceState);
-    }
-
-    public class LauncherExtensionCallbacks implements LauncherCallbacks {
-
-        @Override
-        public void preOnCreate() {
-        }
-
-        @Override
-        public void onCreate(Bundle savedInstanceState) {
-        }
-
-        @Override
-        public void onResume() {
-        }
-
-        @Override
-        public void onStart() {
-        }
-
-        @Override
-        public void onStop() {
-        }
-
-        @Override
-        public void onPause() {
-        }
-
-        @Override
-        public void onDestroy() {
-        }
-
-        @Override
-        public void onSaveInstanceState(Bundle outState) {
-        }
-
-        @Override
-        public void onNewIntent(Intent intent) {
-        }
-
-        @Override
-        public void onActivityResult(int requestCode, int resultCode, Intent data) {
-        }
-
-        @Override
-        public void onRequestPermissionsResult(int requestCode, String[] permissions,
-                int[] grantResults) {
-        }
-
-        @Override
-        public void onWindowFocusChanged(boolean hasFocus) {
-        }
-
-        @Override
-        public boolean onPrepareOptionsMenu(Menu menu) {
-            return false;
-        }
-
-        @Override
-        public void dump(String prefix, FileDescriptor fd, PrintWriter w, String[] args) {
-        }
-
-        @Override
-        public void onHomeIntent() {
-        }
-
-        @Override
-        public boolean handleBackPressed() {
-            return false;
-        }
-
-        @Override
-        public void onTrimMemory(int level) {
-        }
-
-        @Override
-        public void onLauncherProviderChange() {
-        }
-
-        @Override
-        public void bindAllApplications(ArrayList<AppInfo> apps) {
-        }
-
-        @Override
-        public boolean startSearch(String initialQuery, boolean selectInitialQuery,
-                Bundle appSearchData) {
-            return false;
-        }
-
-        @Override
-        public boolean hasSettings() {
-            return false;
-        }
-
-        @Override
-        public void onAttachedToWindow() {
-        }
-
-        @Override
-        public void onDetachedFromWindow() {
-        }
-    }
-}
diff --git a/src/com/android/launcher3/testing/MemoryDumpActivity.java b/src/com/android/launcher3/testing/MemoryDumpActivity.java
deleted file mode 100644
index 9bcf92b..0000000
--- a/src/com/android/launcher3/testing/MemoryDumpActivity.java
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * Copyright (C) 2013 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.testing;
-
-import android.app.Activity;
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.content.ServiceConnection;
-import android.content.pm.PackageManager;
-import android.net.Uri;
-import android.os.Build;
-import android.os.Bundle;
-import android.os.Environment;
-import android.os.IBinder;
-import android.util.Log;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipOutputStream;
-
-public class MemoryDumpActivity extends Activity {
-    private static final String TAG = "MemoryDumpActivity";
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-    }
-
-    public static String zipUp(ArrayList<String> paths) {
-        final int BUFSIZ = 256 * 1024; // 256K
-        final byte[] buf = new byte[BUFSIZ];
-        final String zipfilePath = String.format("%s/hprof-%d.zip",
-                Environment.getExternalStorageDirectory(),
-                System.currentTimeMillis());
-        ZipOutputStream zos = null;
-        try {
-            OutputStream os = new FileOutputStream(zipfilePath);
-            zos = new ZipOutputStream(new BufferedOutputStream(os));
-            for (String filename : paths) {
-                InputStream is = null;
-                try {
-                    is = new BufferedInputStream(new FileInputStream(filename));
-                    ZipEntry entry = new ZipEntry(filename);
-                    zos.putNextEntry(entry);
-                    int len;
-                    while ( 0 < (len = is.read(buf, 0, BUFSIZ)) ) {
-                        zos.write(buf, 0, len);
-                    }
-                    zos.closeEntry();
-                } finally {
-                    is.close();
-                }
-            }
-        } catch (IOException e) {
-            Log.e(TAG, "error zipping up profile data", e);
-            return null;
-        } finally {
-            if (zos != null) {
-                try {
-                    zos.close();
-                } catch (IOException e) {
-                    // ugh, whatever
-                }
-            }
-        }
-        return zipfilePath;
-    }
-
-    public static void dumpHprofAndShare(final Context context, MemoryTracker tracker) {
-        final StringBuilder body = new StringBuilder();
-
-        final ArrayList<String> paths = new ArrayList<String>();
-        final int myPid = android.os.Process.myPid();
-
-        final int[] pids_orig = tracker.getTrackedProcesses();
-        final int[] pids_copy = Arrays.copyOf(pids_orig, pids_orig.length);
-        for (int pid : pids_copy) {
-            MemoryTracker.ProcessMemInfo info = tracker.getMemInfo(pid);
-            if (info != null) {
-                body.append("pid ").append(pid).append(":")
-                    .append(" up=").append(info.getUptime())
-                    .append(" pss=").append(info.currentPss)
-                    .append(" uss=").append(info.currentUss)
-                    .append("\n");
-            }
-            if (pid == myPid) {
-                final String path = String.format("%s/launcher-memory-%d.ahprof",
-                        Environment.getExternalStorageDirectory(),
-                        pid);
-                Log.v(TAG, "Dumping memory info for process " + pid + " to " + path);
-                try {
-                    android.os.Debug.dumpHprofData(path); // will block
-                } catch (IOException e) {
-                    Log.e(TAG, "error dumping memory:", e);
-                }
-                paths.add(path);
-            }
-        }
-
-        String zipfile = zipUp(paths);
-
-        if (zipfile == null) return;
-
-        Intent shareIntent = new Intent(Intent.ACTION_SEND);
-        shareIntent.setType("application/zip");
-
-        final PackageManager pm = context.getPackageManager();
-        shareIntent.putExtra(Intent.EXTRA_SUBJECT, String.format("Launcher memory dump (%d)", myPid));
-        String appVersion;
-        try {
-            appVersion = pm.getPackageInfo(context.getPackageName(), 0).versionName;
-        } catch (PackageManager.NameNotFoundException e) {
-            appVersion = "?";
-        }
-
-        body.append("\nApp version: ").append(appVersion).append("\nBuild: ").append(Build.DISPLAY).append("\n");
-        shareIntent.putExtra(Intent.EXTRA_TEXT, body.toString());
-
-        final File pathFile = new File(zipfile);
-        final Uri pathUri = Uri.fromFile(pathFile);
-
-        shareIntent.putExtra(Intent.EXTRA_STREAM, pathUri);
-        context.startActivity(shareIntent);
-    }
-
-    @Override
-    public void onStart() {
-        super.onStart();
-
-        startDump(this, new Runnable() {
-            @Override
-            public void run() {
-                finish();
-            }
-        });
-    }
-
-    public static void startDump(final Context context) {
-        startDump(context, null);
-    }
-
-    public static void startDump(final Context context, final Runnable andThen) {
-        final ServiceConnection connection = new ServiceConnection() {
-            public void onServiceConnected(ComponentName className, IBinder service) {
-                Log.v(TAG, "service connected, dumping...");
-                dumpHprofAndShare(context,
-                        ((MemoryTracker.MemoryTrackerInterface) service).getService());
-                context.unbindService(this);
-                if (andThen != null) andThen.run();
-            }
-
-            public void onServiceDisconnected(ComponentName className) {
-            }
-        };
-        Log.v(TAG, "attempting to bind to memory tracker");
-        context.bindService(new Intent(context, MemoryTracker.class),
-                connection, Context.BIND_AUTO_CREATE);
-    }
-}
diff --git a/src/com/android/launcher3/testing/MemoryTracker.java b/src/com/android/launcher3/testing/MemoryTracker.java
deleted file mode 100644
index ed2a312..0000000
--- a/src/com/android/launcher3/testing/MemoryTracker.java
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- * Copyright (C) 2013 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.testing;
-
-import android.app.ActivityManager;
-import android.app.Service;
-import android.content.Context;
-import android.content.Intent;
-import android.os.Binder;
-import android.os.Debug;
-import android.os.Handler;
-import android.os.IBinder;
-import android.os.Message;
-import android.os.SystemClock;
-import android.util.Log;
-import android.util.LongSparseArray;
-
-import com.android.launcher3.util.TestingUtils;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class MemoryTracker extends Service {
-    public static final String TAG = MemoryTracker.class.getSimpleName();
-
-    private static final long UPDATE_RATE = 5000;
-
-    private static final int MSG_START = 1;
-    private static final int MSG_STOP = 2;
-    private static final int MSG_UPDATE = 3;
-
-    public static class ProcessMemInfo {
-        public int pid;
-        public String name;
-        public long startTime;
-        public long currentPss, currentUss;
-        public long[] pss = new long[256];
-        public long[] uss = new long[256];
-            //= new Meminfo[(int) (30 * 60 / (UPDATE_RATE / 1000))]; // 30 minutes
-        public long max = 1;
-        public int head = 0;
-        public ProcessMemInfo(int pid, String name, long start) {
-            this.pid = pid;
-            this.name = name;
-            this.startTime = start;
-        }
-        public long getUptime() {
-            return System.currentTimeMillis() - startTime;
-        }
-    };
-    public final LongSparseArray<ProcessMemInfo> mData = new LongSparseArray<ProcessMemInfo>();
-    public final ArrayList<Long> mPids = new ArrayList<Long>();
-    private int[] mPidsArray = new int[0];
-    private final Object mLock = new Object();
-
-    Handler mHandler = new Handler() {
-        @Override
-        public void handleMessage(Message m) {
-            switch (m.what) {
-                case MSG_START:
-                    mHandler.removeMessages(MSG_UPDATE);
-                    mHandler.sendEmptyMessage(MSG_UPDATE);
-                    break;
-                case MSG_STOP:
-                    mHandler.removeMessages(MSG_UPDATE);
-                    break;
-                case MSG_UPDATE:
-                    update();
-                    mHandler.removeMessages(MSG_UPDATE);
-                    mHandler.sendEmptyMessageDelayed(MSG_UPDATE, UPDATE_RATE);
-                    break;
-            }
-        }
-    };
-
-    ActivityManager mAm;
-
-    public ProcessMemInfo getMemInfo(int pid) {
-        return mData.get(pid);
-    }
-
-    public int[] getTrackedProcesses() {
-        return mPidsArray;
-    }
-
-    public void startTrackingProcess(int pid, String name, long start) {
-        synchronized (mLock) {
-            final Long lpid = Long.valueOf(pid);
-
-            if (mPids.contains(lpid)) return;
-
-            mPids.add(lpid);
-            updatePidsArrayL();
-
-            mData.put(pid, new ProcessMemInfo(pid, name, start));
-        }
-    }
-
-    void updatePidsArrayL() {
-        final int N = mPids.size();
-        mPidsArray = new int[N];
-        StringBuffer sb = new StringBuffer("Now tracking processes: ");
-        for (int i=0; i<N; i++) {
-            final int p = mPids.get(i).intValue();
-            mPidsArray[i] = p;
-            sb.append(p); sb.append(" ");
-        }
-        Log.v(TAG, sb.toString());
-    }
-
-    void update() {
-        synchronized (mLock) {
-            Debug.MemoryInfo[] dinfos = mAm.getProcessMemoryInfo(mPidsArray);
-            for (int i=0; i<dinfos.length; i++) {
-                Debug.MemoryInfo dinfo = dinfos[i];
-                if (i > mPids.size()) {
-                    Log.e(TAG, "update: unknown process info received: " + dinfo);
-                    break;
-                }
-                final long pid = mPids.get(i).intValue();
-                final ProcessMemInfo info = mData.get(pid);
-                info.head = (info.head+1) % info.pss.length;
-                info.pss[info.head] = info.currentPss = dinfo.getTotalPss();
-                info.uss[info.head] = info.currentUss = dinfo.getTotalPrivateDirty();
-                if (info.currentPss > info.max) info.max = info.currentPss;
-                if (info.currentUss > info.max) info.max = info.currentUss;
-                // Log.v(TAG, "update: pid " + pid + " pss=" + info.currentPss + " uss=" + info.currentUss);
-                if (info.currentPss == 0) {
-                    Log.v(TAG, "update: pid " + pid + " has pss=0, it probably died");
-                    mData.remove(pid);
-                }
-            }
-            for (int i=mPids.size()-1; i>=0; i--) {
-                final long pid = mPids.get(i).intValue();
-                if (mData.get(pid) == null) {
-                    mPids.remove(i);
-                    updatePidsArrayL();
-                }
-            }
-        }
-    }
-
-    @Override
-    public void onCreate() {
-        mAm = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
-
-        // catch up in case we crashed but other processes are still running
-        List<ActivityManager.RunningServiceInfo> svcs = mAm.getRunningServices(256);
-        for (ActivityManager.RunningServiceInfo svc : svcs) {
-            if (svc.service.getPackageName().equals(getPackageName())) {
-                Log.v(TAG, "discovered running service: " + svc.process + " (" + svc.pid + ")");
-                startTrackingProcess(svc.pid, svc.process,
-                        System.currentTimeMillis() - (SystemClock.elapsedRealtime() - svc.activeSince));
-            }
-        }
-
-        List<ActivityManager.RunningAppProcessInfo> procs = mAm.getRunningAppProcesses();
-        for (ActivityManager.RunningAppProcessInfo proc : procs) {
-            final String pname = proc.processName;
-            if (pname.startsWith(getPackageName())) {
-                Log.v(TAG, "discovered other running process: " + pname + " (" + proc.pid + ")");
-                startTrackingProcess(proc.pid, pname, System.currentTimeMillis());
-            }
-        }
-    }
-
-    @Override
-    public void onDestroy() {
-        mHandler.sendEmptyMessage(MSG_STOP);
-    }
-
-    @Override
-    public int onStartCommand(Intent intent, int flags, int startId) {
-        Log.v(TAG, "Received start id " + startId + ": " + intent);
-
-        if (intent != null) {
-            if (TestingUtils.ACTION_START_TRACKING.equals(intent.getAction())) {
-                final int pid = intent.getIntExtra("pid", -1);
-                final String name = intent.getStringExtra("name");
-                final long start = intent.getLongExtra("start", System.currentTimeMillis());
-                startTrackingProcess(pid, name, start);
-            }
-        }
-
-        mHandler.sendEmptyMessage(MSG_START);
-
-        return START_STICKY;
-    }
-
-    public class MemoryTrackerInterface extends Binder {
-        MemoryTracker getService() {
-            return MemoryTracker.this;
-        }
-    }
-
-    private final IBinder mBinder = new MemoryTrackerInterface();
-
-    public IBinder onBind(Intent intent) {
-        mHandler.sendEmptyMessage(MSG_START);
-
-        return mBinder;
-    }
-}
diff --git a/src/com/android/launcher3/testing/ToggleWeightWatcher.java b/src/com/android/launcher3/testing/ToggleWeightWatcher.java
deleted file mode 100644
index f0c3920..0000000
--- a/src/com/android/launcher3/testing/ToggleWeightWatcher.java
+++ /dev/null
@@ -1,31 +0,0 @@
-package com.android.launcher3.testing;
-
-import android.app.Activity;
-import android.content.SharedPreferences;
-import android.os.Bundle;
-import android.view.View;
-
-import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherAppState;
-import com.android.launcher3.Utilities;
-import com.android.launcher3.util.TestingUtils;
-
-public class ToggleWeightWatcher extends Activity {
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        SharedPreferences sp = Utilities.getPrefs(this);
-        boolean show = sp.getBoolean(TestingUtils.SHOW_WEIGHT_WATCHER, true);
-
-        show = !show;
-        sp.edit().putBoolean(TestingUtils.SHOW_WEIGHT_WATCHER, show).apply();
-
-        Launcher launcher = (Launcher) LauncherAppState.getInstance(this).getModel().getCallback();
-        if (launcher != null && launcher.mWeightWatcher != null) {
-            launcher.mWeightWatcher.setVisibility(show ? View.VISIBLE : View.GONE);
-        }
-        finish();
-    }
-}
diff --git a/src/com/android/launcher3/testing/WeightWatcher.java b/src/com/android/launcher3/testing/WeightWatcher.java
deleted file mode 100644
index a26a2b6..0000000
--- a/src/com/android/launcher3/testing/WeightWatcher.java
+++ /dev/null
@@ -1,267 +0,0 @@
-/*
- * Copyright (C) 2013 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.testing;
-
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.content.ServiceConnection;
-import android.graphics.Canvas;
-import android.graphics.Color;
-import android.graphics.Paint;
-import android.os.Handler;
-import android.os.IBinder;
-import android.os.Message;
-import android.util.AttributeSet;
-import android.util.Log;
-import android.util.TypedValue;
-import android.view.Gravity;
-import android.view.View;
-import android.widget.LinearLayout;
-import android.widget.TextView;
-
-import com.android.launcher3.util.Thunk;
-
-public class WeightWatcher extends LinearLayout {
-    private static final int RAM_GRAPH_RSS_COLOR = 0xFF990000;
-    private static final int RAM_GRAPH_PSS_COLOR = 0xFF99CC00;
-    private static final int TEXT_COLOR = 0xFFFFFFFF;
-    private static final int BACKGROUND_COLOR = 0xc0000000;
-
-    private static final int UPDATE_RATE = 5000;
-
-    private static final int MSG_START = 1;
-    private static final int MSG_STOP = 2;
-    private static final int MSG_UPDATE = 3;
-
-    static int indexOf(int[] a, int x) {
-        for (int i=0; i<a.length; i++) {
-            if (a[i] == x) return i;
-        }
-        return -1;
-    }
-
-    Handler mHandler = new Handler() {
-        @Override
-        public void handleMessage(Message m) {
-            switch (m.what) {
-                case MSG_START:
-                    mHandler.sendEmptyMessage(MSG_UPDATE);
-                    break;
-                case MSG_STOP:
-                    mHandler.removeMessages(MSG_UPDATE);
-                    break;
-                case MSG_UPDATE:
-                    int[] pids = mMemoryService.getTrackedProcesses();
-
-                    final int N = getChildCount();
-                    if (pids.length != N) initViews();
-                    else for (int i=0; i<N; i++) {
-                        ProcessWatcher pw = ((ProcessWatcher) getChildAt(i));
-                        if (indexOf(pids, pw.getPid()) < 0) {
-                            initViews();
-                            break;
-                        }
-                        pw.update();
-                    }
-                    mHandler.sendEmptyMessageDelayed(MSG_UPDATE, UPDATE_RATE);
-                    break;
-            }
-        }
-    };
-    @Thunk MemoryTracker mMemoryService;
-
-    public WeightWatcher(Context context, AttributeSet attrs) {
-        super(context, attrs);
-
-        ServiceConnection connection = new ServiceConnection() {
-            public void onServiceConnected(ComponentName className, IBinder service) {
-                mMemoryService = ((MemoryTracker.MemoryTrackerInterface)service).getService();
-                initViews();
-            }
-
-            public void onServiceDisconnected(ComponentName className) {
-                mMemoryService = null;
-            }
-        };
-        context.bindService(new Intent(context, MemoryTracker.class),
-                connection, Context.BIND_AUTO_CREATE);
-
-        setOrientation(LinearLayout.VERTICAL);
-
-        setBackgroundColor(BACKGROUND_COLOR);
-    }
-
-    public void initViews() {
-        removeAllViews();
-        int[] processes = mMemoryService.getTrackedProcesses();
-        for (int i=0; i<processes.length; i++) {
-            final ProcessWatcher v = new ProcessWatcher(getContext());
-            v.setPid(processes[i]);
-            addView(v);
-        }
-    }
-
-    @Override
-    public void onAttachedToWindow() {
-        super.onAttachedToWindow();
-        mHandler.sendEmptyMessage(MSG_START);
-    }
-
-    @Override
-    public void onDetachedFromWindow() {
-        super.onDetachedFromWindow();
-        mHandler.sendEmptyMessage(MSG_STOP);
-    }
-
-    public class ProcessWatcher extends LinearLayout {
-        GraphView mRamGraph;
-        TextView mText;
-        int mPid;
-        @Thunk MemoryTracker.ProcessMemInfo mMemInfo;
-
-        public ProcessWatcher(Context context) {
-            this(context, null);
-        }
-
-        public ProcessWatcher(Context context, AttributeSet attrs) {
-            super(context, attrs);
-
-            final float dp = getResources().getDisplayMetrics().density;
-
-            mText = new TextView(getContext());
-            mText.setTextColor(TEXT_COLOR);
-            mText.setTextSize(TypedValue.COMPLEX_UNIT_PX, 10 * dp);
-            mText.setGravity(Gravity.LEFT | Gravity.CENTER_VERTICAL);
-
-            final int p = (int)(2*dp);
-            setPadding(p, 0, p, 0);
-
-            mRamGraph = new GraphView(getContext());
-
-            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
-                    0,
-                    (int)(14 * dp),
-                    1f
-            );
-
-            addView(mText, params);
-            params.leftMargin = (int)(4*dp);
-            params.weight = 0f;
-            params.width = (int)(200 * dp);
-            addView(mRamGraph, params);
-        }
-
-        public void setPid(int pid) {
-            mPid = pid;
-            mMemInfo = mMemoryService.getMemInfo(mPid);
-            if (mMemInfo == null) {
-                Log.v("WeightWatcher", "Missing info for pid " + mPid + ", removing view: " + this);
-                initViews();
-            }
-        }
-
-        public int getPid() {
-            return mPid;
-        }
-
-        public String getUptimeString() {
-            long sec = mMemInfo.getUptime() / 1000;
-            StringBuilder sb = new StringBuilder();
-            long days = sec / 86400;
-            if (days > 0) {
-                sec -= days * 86400;
-                sb.append(days);
-                sb.append("d");
-            }
-
-            long hours = sec / 3600;
-            if (hours > 0) {
-                sec -= hours * 3600;
-                sb.append(hours);
-                sb.append("h");
-            }
-
-            long mins = sec / 60;
-            if (mins > 0) {
-                sec -= mins * 60;
-                sb.append(mins);
-                sb.append("m");
-            }
-
-            sb.append(sec);
-            sb.append("s");
-            return sb.toString();
-        }
-
-        public void update() {
-            //Log.v("WeightWatcher.ProcessWatcher",
-            //        "MSG_UPDATE pss=" + mMemInfo.currentPss);
-            mText.setText("(" + mPid
-                          + (mPid == android.os.Process.myPid()
-                                ? "/A"  // app
-                                : "/S") // service
-                          + ") up " + getUptimeString()
-                          + " P=" + mMemInfo.currentPss
-                          + " U=" + mMemInfo.currentUss
-                          );
-            mRamGraph.invalidate();
-        }
-
-        public class GraphView extends View {
-            Paint pssPaint, ussPaint, headPaint;
-
-            public GraphView(Context context, AttributeSet attrs) {
-                super(context, attrs);
-
-                pssPaint = new Paint();
-                pssPaint.setColor(RAM_GRAPH_PSS_COLOR);
-                ussPaint = new Paint();
-                ussPaint.setColor(RAM_GRAPH_RSS_COLOR);
-                headPaint = new Paint();
-                headPaint.setColor(Color.WHITE);
-            }
-
-            public GraphView(Context context) {
-                this(context, null);
-            }
-
-            @Override
-            public void onDraw(Canvas c) {
-                int w = c.getWidth();
-                int h = c.getHeight();
-
-                if (mMemInfo == null) return;
-
-                final int N = mMemInfo.pss.length;
-                final float barStep = (float) w / N;
-                final float barWidth = Math.max(1, barStep);
-                final float scale = (float) h / mMemInfo.max;
-
-                int i;
-                float x;
-                for (i=0; i<N; i++) {
-                    x = i * barStep;
-                    c.drawRect(x, h - scale * mMemInfo.pss[i], x + barWidth, h, pssPaint);
-                    c.drawRect(x, h - scale * mMemInfo.uss[i], x + barWidth, h, ussPaint);
-                }
-                x = mMemInfo.head * barStep;
-                c.drawRect(x, 0, x + barWidth, h, headPaint);
-            }
-        }
-    }
-}
diff --git a/src/com/android/launcher3/touch/SwipeDetector.java b/src/com/android/launcher3/touch/SwipeDetector.java
index be4648e..351f88d 100644
--- a/src/com/android/launcher3/touch/SwipeDetector.java
+++ b/src/com/android/launcher3/touch/SwipeDetector.java
@@ -16,6 +16,7 @@
 package com.android.launcher3.touch;
 
 import static android.view.MotionEvent.INVALID_POINTER_ID;
+
 import android.content.Context;
 import android.graphics.PointF;
 import android.support.annotation.NonNull;
@@ -23,7 +24,6 @@
 import android.util.Log;
 import android.view.MotionEvent;
 import android.view.ViewConfiguration;
-import android.view.animation.Interpolator;
 
 /**
  * One dimensional scroll/drag/swipe gesture detector.
@@ -43,7 +43,6 @@
     public static final int DIRECTION_BOTH = DIRECTION_NEGATIVE | DIRECTION_POSITIVE;
 
     private static final float ANIMATION_DURATION = 1200;
-    private static final float FAST_FLING_PX_MS = 10;
 
     protected int mActivePointerId = INVALID_POINTER_ID;
 
@@ -351,22 +350,4 @@
         }
         return duration;
     }
-
-    public static class ScrollInterpolator implements Interpolator {
-
-        boolean mSteeper;
-
-        public void setVelocityAtZero(float velocity) {
-            mSteeper = velocity > FAST_FLING_PX_MS;
-        }
-
-        public float getInterpolation(float t) {
-            t -= 1.0f;
-            float output = t * t * t;
-            if (mSteeper) {
-                output *= t * t; // Make interpolation initial slope steeper
-            }
-            return output + 1;
-        }
-    }
 }
diff --git a/src/com/android/launcher3/util/FlingAnimation.java b/src/com/android/launcher3/util/FlingAnimation.java
index ec62764..fe0571b 100644
--- a/src/com/android/launcher3/util/FlingAnimation.java
+++ b/src/com/android/launcher3/util/FlingAnimation.java
@@ -1,6 +1,6 @@
 package com.android.launcher3.util;
 
-import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_NEXT_FRAME;
+import static com.android.launcher3.LauncherState.NORMAL;
 
 import android.animation.TimeInterpolator;
 import android.animation.ValueAnimator;
@@ -97,7 +97,7 @@
         Runnable onAnimationEndRunnable = new Runnable() {
             @Override
             public void run() {
-                mLauncher.exitSpringLoadedDragMode(SPRING_LOADED_EXIT_NEXT_FRAME);
+                mLauncher.getStateManager().goToState(NORMAL);
                 mDropTarget.completeDrop(mDragObject);
             }
         };
diff --git a/src/com/android/launcher3/util/ItemInfoMatcher.java b/src/com/android/launcher3/util/ItemInfoMatcher.java
index 18787b6..daedaef 100644
--- a/src/com/android/launcher3/util/ItemInfoMatcher.java
+++ b/src/com/android/launcher3/util/ItemInfoMatcher.java
@@ -93,6 +93,19 @@
         };
     }
 
+    /**
+     * Returns a new matcher which returns the opposite boolean value of the provided
+     * {@param matcher}.
+     */
+    public static ItemInfoMatcher not(final ItemInfoMatcher matcher) {
+        return new ItemInfoMatcher() {
+            @Override
+            public boolean matches(ItemInfo info, ComponentName cn) {
+                return !matcher.matches(info, cn);
+            }
+        };
+    }
+
     public static ItemInfoMatcher ofUser(final UserHandle user) {
         return new ItemInfoMatcher() {
             @Override
diff --git a/src/com/android/launcher3/util/TestingUtils.java b/src/com/android/launcher3/util/TestingUtils.java
deleted file mode 100644
index d927dc3..0000000
--- a/src/com/android/launcher3/util/TestingUtils.java
+++ /dev/null
@@ -1,51 +0,0 @@
-package com.android.launcher3.util;
-
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.view.Gravity;
-import android.view.View;
-import android.widget.FrameLayout;
-
-import com.android.launcher3.Launcher;
-import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
-
-public class TestingUtils {
-
-    public static final String MEMORY_TRACKER = "com.android.launcher3.testing.MemoryTracker";
-    public static final String ACTION_START_TRACKING = "com.android.launcher3.action.START_TRACKING";
-
-    public static final boolean MEMORY_DUMP_ENABLED = false;
-    public static final String SHOW_WEIGHT_WATCHER = "debug.show_mem";
-
-    public static void startTrackingMemory(Context context) {
-        if (MEMORY_DUMP_ENABLED) {
-            context.startService(new Intent()
-                .setComponent(new ComponentName(context.getPackageName(), MEMORY_TRACKER))
-                .setAction(ACTION_START_TRACKING)
-                .putExtra("pid", android.os.Process.myPid())
-                .putExtra("name", "L"));
-        }
-    }
-
-    public static void addWeightWatcher(Launcher launcher) {
-        if (MEMORY_DUMP_ENABLED) {
-            boolean show = Utilities.getPrefs(launcher).getBoolean(SHOW_WEIGHT_WATCHER, true);
-
-            int id = launcher.getResources().getIdentifier("zzz_weight_watcher", "layout",
-                    launcher.getPackageName());
-            View watcher = launcher.getLayoutInflater().inflate(id, null);
-            watcher.setAlpha(0.5f);
-            ((FrameLayout) launcher.findViewById(R.id.launcher)).addView(watcher,
-                    new FrameLayout.LayoutParams(
-                            FrameLayout.LayoutParams.MATCH_PARENT,
-                            FrameLayout.LayoutParams.WRAP_CONTENT,
-                            Gravity.BOTTOM)
-            );
-
-            watcher.setVisibility(show ? View.VISIBLE : View.GONE);
-            launcher.mWeightWatcher = watcher;
-        }
-    }
-}
diff --git a/src/com/android/launcher3/util/WallpaperOffsetInterpolator.java b/src/com/android/launcher3/util/WallpaperOffsetInterpolator.java
index ec494f1..5c24687 100644
--- a/src/com/android/launcher3/util/WallpaperOffsetInterpolator.java
+++ b/src/com/android/launcher3/util/WallpaperOffsetInterpolator.java
@@ -10,11 +10,11 @@
 import android.os.Message;
 import android.os.SystemClock;
 import android.util.Log;
-import android.view.animation.DecelerateInterpolator;
 import android.view.animation.Interpolator;
 
 import com.android.launcher3.Utilities;
 import com.android.launcher3.Workspace;
+import com.android.launcher3.anim.Interpolators;
 
 /**
  * Utility class to handle wallpaper scrolling along with workspace.
@@ -199,7 +199,7 @@
 
         public OffsetHandler(Context context) {
             super(UiThreadHelper.getBackgroundLooper());
-            mInterpolator = new DecelerateInterpolator(1.5f);
+            mInterpolator = Interpolators.DEACCEL_1_5;
             mWM = WallpaperManager.getInstance(context);
         }
 
diff --git a/src/com/android/launcher3/views/RecyclerViewFastScroller.java b/src/com/android/launcher3/views/RecyclerViewFastScroller.java
index 8c9a441..8f20a8d 100644
--- a/src/com/android/launcher3/views/RecyclerViewFastScroller.java
+++ b/src/com/android/launcher3/views/RecyclerViewFastScroller.java
@@ -98,6 +98,7 @@
     private String mPopupSectionName;
 
     protected BaseRecyclerView mRv;
+    private RecyclerView.OnScrollListener mOnScrollListener;
 
     private int mDownX;
     private int mDownY;
@@ -141,7 +142,10 @@
 
     public void setRecyclerView(BaseRecyclerView rv, TextView popupView) {
         mRv = rv;
-        mRv.addOnScrollListener(new RecyclerView.OnScrollListener() {
+        if (mOnScrollListener != null) {
+            mRv.removeOnScrollListener(mOnScrollListener);
+        }
+        mRv.addOnScrollListener(mOnScrollListener = new RecyclerView.OnScrollListener() {
             @Override
             public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                 mDy = dy;
diff --git a/src/com/android/launcher3/views/SlidingTabStrip.java b/src/com/android/launcher3/views/SlidingTabStrip.java
new file mode 100644
index 0000000..45c6261
--- /dev/null
+++ b/src/com/android/launcher3/views/SlidingTabStrip.java
@@ -0,0 +1,107 @@
+/*
+ * 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.views;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.Button;
+import android.widget.LinearLayout;
+
+import com.android.launcher3.R;
+import com.android.launcher3.util.Themes;
+
+public class SlidingTabStrip extends LinearLayout {
+
+    private final Paint mSelectedIndicatorPaint;
+    private int mSelectedIndicatorHeight;
+    private int mIndicatorLeft = -1;
+    private int mIndicatorRight = -1;
+    private int mSelectedPosition = -1;
+    private float mSelectionOffset;
+
+    public SlidingTabStrip(@NonNull Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+        setOrientation(HORIZONTAL);
+        setWillNotDraw(false);
+        mSelectedIndicatorPaint = new Paint();
+        mSelectedIndicatorPaint.setColor(Themes.getAttrColor(context, android.R.attr.colorAccent));
+        mSelectedIndicatorHeight = getResources()
+                .getDimensionPixelSize(R.dimen.all_apps_tabs_indicator_height);
+    }
+
+    public void updateIndicatorPosition(int position, float positionOffset) {
+        mSelectedPosition = position;
+        mSelectionOffset = positionOffset;
+        updateIndicatorPosition();
+    }
+
+    public void updateTabTextColor(int pos) {
+        for (int i=0; i < getChildCount(); i++) {
+            Button tab = (Button) getChildAt(i);
+            tab.setSelected(i == pos);
+        }
+    }
+
+    @Override
+    protected void onLayout(boolean changed, int l, int t, int r, int b) {
+        super.onLayout(changed, l, t, r, b);
+        updateTabTextColor(0);
+        updateIndicatorPosition(0, 0);
+    }
+
+    private void updateIndicatorPosition() {
+        final View tab = getChildAt(mSelectedPosition);
+        int left, right;
+
+        if (tab != null && tab.getWidth() > 0) {
+            left = tab.getLeft();
+            right = tab.getRight();
+
+            if (mSelectionOffset > 0f && mSelectedPosition < getChildCount() - 1) {
+                // Draw the selection partway between the tabs
+                View nextTitle = getChildAt(mSelectedPosition + 1);
+                left = (int) (mSelectionOffset * nextTitle.getLeft() +
+                        (1.0f - mSelectionOffset) * left);
+                right = (int) (mSelectionOffset * nextTitle.getRight() +
+                        (1.0f - mSelectionOffset) * right);
+            }
+        } else {
+            left = right = -1;
+        }
+
+        setIndicatorPosition(left, right);
+    }
+
+    private void setIndicatorPosition(int left, int right) {
+        if (left != mIndicatorLeft || right != mIndicatorRight) {
+            mIndicatorLeft = left;
+            mIndicatorRight = right;
+            invalidate();
+        }
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+        canvas.drawRect(mIndicatorLeft, getHeight() - mSelectedIndicatorHeight,
+                mIndicatorRight, getHeight(), mSelectedIndicatorPaint);
+    }
+}
\ No newline at end of file
diff --git a/src/com/android/launcher3/widget/BaseWidgetSheet.java b/src/com/android/launcher3/widget/BaseWidgetSheet.java
index 61a7333..e328759 100644
--- a/src/com/android/launcher3/widget/BaseWidgetSheet.java
+++ b/src/com/android/launcher3/widget/BaseWidgetSheet.java
@@ -15,6 +15,7 @@
  */
 package com.android.launcher3.widget;
 
+import static com.android.launcher3.anim.Interpolators.scrollInterpolatorForVelocity;
 import static com.android.launcher3.logging.LoggerUtils.newContainerTarget;
 
 import android.animation.Animator;
@@ -29,8 +30,7 @@
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.View.OnLongClickListener;
-import android.view.animation.AccelerateInterpolator;
-import android.view.animation.DecelerateInterpolator;
+import android.view.animation.Interpolator;
 import android.widget.Toast;
 
 import com.android.launcher3.AbstractFloatingView;
@@ -41,6 +41,7 @@
 import com.android.launcher3.LauncherAnimUtils;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.graphics.GradientView;
 import com.android.launcher3.touch.SwipeDetector;
@@ -76,12 +77,12 @@
     private Toast mWidgetInstructionToast;
 
     protected final Launcher mLauncher;
-    protected final SwipeDetector.ScrollInterpolator mScrollInterpolator;
     protected final SwipeDetector mSwipeDetector;
     protected final ObjectAnimator mOpenCloseAnimator;
 
     protected View mContent;
     protected GradientView mGradientView;
+    protected Interpolator mScrollInterpolator;
 
     // range [0, 1], 0=> completely open, 1=> completely closed
     protected float mTranslationShift = TRANSLATION_SHIFT_CLOSED;
@@ -92,7 +93,7 @@
         super(context, attrs, defStyleAttr);
         mLauncher = Launcher.getLauncher(context);
 
-        mScrollInterpolator = new SwipeDetector.ScrollInterpolator();
+        mScrollInterpolator = Interpolators.SCROLL_CUBIC;
         mSwipeDetector = new SwipeDetector(context, this, SwipeDetector.VERTICAL);
 
         mOpenCloseAnimator = LauncherAnimUtils.ofPropertyValuesHolder(this);
@@ -206,7 +207,7 @@
     @Override
     public void onDragEnd(float velocity, boolean fling) {
         if ((fling && velocity > 0) || mTranslationShift > 0.5f) {
-            mScrollInterpolator.setVelocityAtZero(velocity);
+            mScrollInterpolator = scrollInterpolatorForVelocity(velocity);
             mOpenCloseAnimator.setDuration(SwipeDetector.calculateDuration(
                     velocity, TRANSLATION_SHIFT_CLOSED - mTranslationShift));
             close(true);
@@ -215,7 +216,7 @@
                     TRANSLATION_SHIFT, TRANSLATION_SHIFT_OPENED));
             mOpenCloseAnimator.setDuration(
                     SwipeDetector.calculateDuration(velocity, mTranslationShift))
-                    .setInterpolator(new DecelerateInterpolator());
+                    .setInterpolator(Interpolators.DEACCEL);
             mOpenCloseAnimator.start();
         }
     }
@@ -236,7 +237,7 @@
             if (mSwipeDetector.isIdleState()) {
                 mOpenCloseAnimator
                         .setDuration(defaultDuration)
-                        .setInterpolator(new AccelerateInterpolator());
+                        .setInterpolator(Interpolators.ACCEL);
             } else {
                 mOpenCloseAnimator.setInterpolator(mScrollInterpolator);
             }
diff --git a/src/com/android/launcher3/widget/WidgetsBottomSheet.java b/src/com/android/launcher3/widget/WidgetsBottomSheet.java
index 3bb3fcb..7fa5ff0 100644
--- a/src/com/android/launcher3/widget/WidgetsBottomSheet.java
+++ b/src/com/android/launcher3/widget/WidgetsBottomSheet.java
@@ -24,8 +24,6 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.view.animation.AnimationUtils;
-import android.view.animation.Interpolator;
 import android.widget.TextView;
 
 import com.android.launcher3.Insettable;
@@ -33,6 +31,7 @@
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.graphics.GradientView;
 import com.android.launcher3.model.WidgetItem;
 import com.android.launcher3.util.PackageUserKey;
@@ -46,7 +45,6 @@
 
     private static final int DEFAULT_CLOSE_DURATION = 200;
     private ItemInfo mOriginalItemInfo;
-    private Interpolator mFastOutSlowInInterpolator;
     private Rect mInsets;
 
     public WidgetsBottomSheet(Context context, AttributeSet attrs) {
@@ -56,8 +54,6 @@
     public WidgetsBottomSheet(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
         setWillNotDraw(false);
-        mFastOutSlowInInterpolator =
-                AnimationUtils.loadInterpolator(context, android.R.interpolator.fast_out_slow_in);
         mInsets = new Rect();
 
         mGradientView = (GradientView) mLauncher.getLayoutInflater().inflate(
@@ -148,7 +144,7 @@
         if (animate) {
             mOpenCloseAnimator.setValues(
                     PropertyValuesHolder.ofFloat(TRANSLATION_SHIFT, TRANSLATION_SHIFT_OPENED));
-            mOpenCloseAnimator.setInterpolator(mFastOutSlowInInterpolator);
+            mOpenCloseAnimator.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
             mOpenCloseAnimator.start();
         } else {
             setTranslationShift(TRANSLATION_SHIFT_OPENED);
diff --git a/src_config/com/android/launcher3/BuildConfig.java b/src_config/com/android/launcher3/BuildConfig.java
deleted file mode 100644
index 4df75a1..0000000
--- a/src_config/com/android/launcher3/BuildConfig.java
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.launcher3;
-
-/**
- * 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/com/android/launcher3/accessibility/OverviewAccessibilityDelegate.java b/src_ui_overrides/com/android/launcher3/uioverrides/OverviewAccessibilityDelegate.java
similarity index 87%
rename from src/com/android/launcher3/accessibility/OverviewAccessibilityDelegate.java
rename to src_ui_overrides/com/android/launcher3/uioverrides/OverviewAccessibilityDelegate.java
index 29dd95c..88a1e10 100644
--- a/src/com/android/launcher3/accessibility/OverviewAccessibilityDelegate.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/OverviewAccessibilityDelegate.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.android.launcher3.accessibility;
+package com.android.launcher3.uioverrides;
 
 import android.content.Context;
 import android.os.Bundle;
@@ -24,6 +24,7 @@
 import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
 
 import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 
@@ -54,17 +55,18 @@
     @Override
     public boolean performAccessibilityAction(View host, int action, Bundle args) {
         Launcher launcher = Launcher.getLauncher(host.getContext());
+        OverviewPanel overviewPanel = launcher.findViewById(R.id.overview_panel);
         if (action == OVERVIEW) {
-            launcher.showOverviewMode(true);
+            launcher.getStateManager().goToState(LauncherState.OVERVIEW);
             return true;
         } else if (action == WALLPAPERS) {
             launcher.onClickWallpaperPicker(host);
             return true;
         } else if (action == WIDGETS) {
-            launcher.onClickAddWidgetButton(host);
+            overviewPanel.onClickAddWidgetButton();
             return true;
         } else if (action == SETTINGS) {
-            launcher.onClickSettingsButton(host);
+            overviewPanel.onClickSettingsButton(host);
             return true;
         }
         return super.performAccessibilityAction(host, action, args);
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/OverviewPanel.java b/src_ui_overrides/com/android/launcher3/uioverrides/OverviewPanel.java
new file mode 100644
index 0000000..3ce1014
--- /dev/null
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/OverviewPanel.java
@@ -0,0 +1,198 @@
+/*
+ * 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.uioverrides;
+
+import static com.android.launcher3.WorkspaceStateTransitionAnimation.NO_ANIM_PROPERTY_SETTER;
+
+import android.animation.AnimatorSet;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.Resources;
+import android.graphics.Rect;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.LinearLayout;
+import android.widget.Toast;
+
+import com.android.launcher3.Insettable;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.LauncherStateManager;
+import com.android.launcher3.LauncherStateManager.AnimationConfig;
+import com.android.launcher3.R;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.WorkspaceStateTransitionAnimation.AnimatedPropertySetter;
+import com.android.launcher3.WorkspaceStateTransitionAnimation.PropertySetter;
+import com.android.launcher3.anim.AnimationLayerSet;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ControlType;
+import com.android.launcher3.widget.WidgetsFullSheet;
+
+public class OverviewPanel extends LinearLayout implements Insettable, View.OnClickListener,
+        View.OnLongClickListener, LauncherStateManager.StateHandler {
+
+    // Out of 100, the percent of space the overview bar should try and take vertically.
+    private static final float OVERVIEW_ICON_ZONE_RATIO = 0.22f;
+
+    private final Launcher mLauncher;
+
+    public OverviewPanel(Context context) {
+        this(context, null);
+    }
+
+    public OverviewPanel(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public OverviewPanel(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        mLauncher = Launcher.getLauncher(context);
+        setAlpha(0);
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+
+        int visibleChildCount = 3;
+        // Attach buttons.
+        attachListeners(findViewById(R.id.wallpaper_button));
+        attachListeners(findViewById(R.id.widget_button));
+
+        View settingsButton = findViewById(R.id.settings_button);
+        if (mLauncher.hasSettings()) {
+            attachListeners(settingsButton);
+        } else {
+            settingsButton.setVisibility(GONE);
+            visibleChildCount--;
+        }
+
+        // Init UI
+        Resources res = getResources();
+        int itemWidthPx =
+                res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_bar_item_width);
+        int spacerWidthPx =
+                res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_bar_spacer_width);
+
+        int totalItemWidth = visibleChildCount * itemWidthPx;
+        int maxWidth = totalItemWidth + (visibleChildCount - 1) * spacerWidthPx;
+
+        getLayoutParams().width = Math.min(mLauncher.getDeviceProfile().availableWidthPx, maxWidth);
+        getLayoutParams().height = getButtonBarHeight(mLauncher);
+    }
+
+    private void attachListeners(View view) {
+        view.setOnClickListener(this);
+        view.setOnLongClickListener(this);
+    }
+
+    @Override
+    public void setInsets(Rect insets) {
+        ((FrameLayout.LayoutParams) getLayoutParams()).bottomMargin = insets.bottom;
+    }
+
+    @Override
+    public void onClick(View view) {
+        handleViewClick(view, Action.Touch.TAP);
+    }
+
+    @Override
+    public boolean onLongClick(View view) {
+        return handleViewClick(view, Action.Touch.LONGPRESS);
+    }
+
+    private boolean handleViewClick(View view, int action) {
+        if (mLauncher.getWorkspace().isSwitchingState()) {
+            return false;
+        }
+
+        final int controlType;
+        if (view.getId() == R.id.wallpaper_button) {
+            mLauncher.onClickWallpaperPicker(view);
+            controlType = ControlType.WALLPAPER_BUTTON;
+        } else if (view.getId() == R.id.widget_button) {
+            onClickAddWidgetButton();
+            controlType = ControlType.WIDGETS_BUTTON;
+        } else if (view.getId() == R.id.settings_button) {
+            onClickSettingsButton(view);
+            controlType = ControlType.SETTINGS_BUTTON;
+        } else {
+            return false;
+        }
+
+        mLauncher.getUserEventDispatcher().logActionOnControl(action, controlType);
+        return true;
+    }
+
+    /**
+     * Event handler for the (Add) Widgets button that appears after a long press
+     * on the home screen.
+     */
+    public void onClickAddWidgetButton() {
+        if (getContext().getPackageManager().isSafeMode()) {
+            Toast.makeText(mLauncher, R.string.safemode_widget_error, Toast.LENGTH_SHORT).show();
+        } else {
+            WidgetsFullSheet.show(mLauncher, true /* animated */);
+        }
+    }
+
+    /**
+     * Event handler for a click on the settings button that appears after a long press
+     * on the home screen.
+     */
+    public void onClickSettingsButton(View v) {
+        Intent intent = new Intent(Intent.ACTION_APPLICATION_PREFERENCES)
+                .setPackage(getContext().getPackageName());
+        intent.setSourceBounds(mLauncher.getViewBounds(v));
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        getContext().startActivity(intent, mLauncher.getActivityLaunchOptions(v));
+    }
+
+    @Override
+    public void setState(LauncherState state) {
+        setState(state, NO_ANIM_PROPERTY_SETTER);
+    }
+
+    @Override
+    public void setStateWithAnimation(LauncherState toState, AnimationLayerSet layerViews,
+            AnimatorSet anim, AnimationConfig config) {
+        setState(toState, new AnimatedPropertySetter(config.duration, layerViews, anim));
+    }
+
+    private void setState(LauncherState state, PropertySetter setter) {
+        boolean isOverview = state == LauncherState.OVERVIEW;
+        float finalHotseatAlpha = isOverview ? 0 : 1;
+
+        setter.setViewAlpha(null, this, isOverview ? 1 : 0);
+        setter.setViewAlpha(
+                mLauncher.getWorkspace().createHotseatAlphaAnimator(finalHotseatAlpha),
+                mLauncher.getHotseat(), finalHotseatAlpha);
+    }
+
+    public static int getButtonBarHeight(Launcher launcher) {
+        int zoneHeight = (int) (OVERVIEW_ICON_ZONE_RATIO *
+                launcher.getDeviceProfile().availableHeightPx);
+        Resources res = launcher.getResources();
+        int overviewModeMinIconZoneHeightPx =
+                res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_min_icon_zone_height);
+        int overviewModeMaxIconZoneHeightPx =
+                res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_max_icon_zone_height);
+        return Utilities.boundToRange(zoneHeight,
+                overviewModeMinIconZoneHeightPx,
+                overviewModeMaxIconZoneHeightPx);
+    }
+}
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/OverviewState.java b/src_ui_overrides/com/android/launcher3/uioverrides/OverviewState.java
new file mode 100644
index 0000000..dcf7453
--- /dev/null
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/OverviewState.java
@@ -0,0 +1,83 @@
+/*
+ * 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.uioverrides;
+
+import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
+import static com.android.launcher3.Utilities.isAccessibilityEnabled;
+
+import android.graphics.Rect;
+import android.view.View;
+import android.view.accessibility.AccessibilityNodeInfo;
+
+import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.Workspace;
+import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
+
+/**
+ * Definition for overview state
+ */
+public class OverviewState extends LauncherState {
+
+    // The percent to shrink the workspace during overview mode
+    private static final float SCALE_FACTOR = 0.7f;
+
+    private static final int STATE_FLAGS = FLAG_SHOW_SCRIM | FLAG_MULTI_PAGE;
+
+    public OverviewState(int id) {
+        super(id, ContainerType.WORKSPACE, OVERVIEW_TRANSITION_MS, 1f, STATE_FLAGS);
+    }
+
+    @Override
+    public float[] getWorkspaceScaleAndTranslation(Launcher launcher) {
+        DeviceProfile grid = launcher.getDeviceProfile();
+        Workspace ws = launcher.getWorkspace();
+        Rect insets = launcher.getDragLayer().getInsets();
+
+        int overviewButtonBarHeight = OverviewPanel.getButtonBarHeight(launcher);
+        int scaledHeight = (int) (SCALE_FACTOR * ws.getNormalChildHeight());
+        Rect workspacePadding = grid.getWorkspacePadding(null);
+        int workspaceTop = insets.top + workspacePadding.top;
+        int workspaceBottom = ws.getViewportHeight() - insets.bottom - workspacePadding.bottom;
+        int overviewTop = insets.top;
+        int overviewBottom = ws.getViewportHeight() - insets.bottom - overviewButtonBarHeight;
+        int workspaceOffsetTopEdge =
+                workspaceTop + ((workspaceBottom - workspaceTop) - scaledHeight) / 2;
+        int overviewOffsetTopEdge = overviewTop + (overviewBottom - overviewTop - scaledHeight) / 2;
+        return new float[] {SCALE_FACTOR, -workspaceOffsetTopEdge + overviewOffsetTopEdge };
+    }
+
+    @Override
+    public void onStateEnabled(Launcher launcher) {
+        launcher.getWorkspace().setPageRearrangeEnabled(true);
+
+        if (isAccessibilityEnabled(launcher)) {
+            launcher.getOverviewPanel().getChildAt(0).performAccessibilityAction(
+                    AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS, null);
+        }
+    }
+
+    @Override
+    public void onStateDisabled(Launcher launcher) {
+        launcher.getWorkspace().setPageRearrangeEnabled(false);
+    }
+
+    @Override
+    public View getFinalFocus(Launcher launcher) {
+        return launcher.getOverviewPanel();
+    }
+}
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/PinchToOverviewListener.java b/src_ui_overrides/com/android/launcher3/uioverrides/PinchToOverviewListener.java
new file mode 100644
index 0000000..40bf057
--- /dev/null
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/PinchToOverviewListener.java
@@ -0,0 +1,164 @@
+/*
+ * 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.uioverrides;
+
+import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
+import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.Utilities.isAccessibilityEnabled;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.view.MotionEvent;
+import android.view.ScaleGestureDetector;
+import android.view.ScaleGestureDetector.OnScaleGestureListener;
+
+import com.android.launcher3.AbstractFloatingView;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.Workspace;
+import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.util.TouchController;
+
+/**
+ * Detects pinches and animates the Workspace to/from overview mode.
+ */
+public class PinchToOverviewListener extends AnimatorListenerAdapter
+        implements TouchController, OnScaleGestureListener {
+
+    private static final float ACCEPT_THRESHOLD = 0.65f;
+    /**
+     * The velocity threshold at which a pinch will be completed instead of canceled,
+     * even if the first threshold has not been passed. Measured in scale / millisecond
+     */
+    private static final float FLING_VELOCITY = 0.001f;
+
+    private final ScaleGestureDetector mPinchDetector;
+    private Launcher mLauncher;
+    private Workspace mWorkspace = null;
+    private boolean mPinchStarted = false;
+
+    private AnimatorPlaybackController mCurrentAnimation;
+    private float mCurrentScale;
+    private boolean mShouldGoToFinalState;
+
+    private LauncherState mToState;
+
+    public PinchToOverviewListener(Launcher launcher) {
+        mLauncher = launcher;
+        mPinchDetector = new ScaleGestureDetector(mLauncher, this);
+    }
+
+    public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
+        mPinchDetector.onTouchEvent(ev);
+        return mPinchStarted;
+    }
+
+    public boolean onControllerTouchEvent(MotionEvent ev) {
+        return mPinchDetector.onTouchEvent(ev);
+    }
+
+    @Override
+    public boolean onScaleBegin(ScaleGestureDetector detector) {
+        if (isAccessibilityEnabled(mLauncher)) {
+            return false;
+        }
+        if (!mLauncher.isInState(NORMAL) && !mLauncher.isInState(OVERVIEW)) {
+            // Don't listen for the pinch gesture if on all apps, widget picker, -1, etc.
+            return false;
+        }
+        if (mCurrentAnimation != null) {
+            // Don't listen for the pinch gesture if we are already animating from a previous one.
+            return false;
+        }
+        if (mLauncher.isWorkspaceLocked()) {
+            // Don't listen for the pinch gesture if the workspace isn't ready.
+            return false;
+        }
+        if (mWorkspace == null) {
+            mWorkspace = mLauncher.getWorkspace();
+        }
+        if (mWorkspace.isSwitchingState()) {
+            // Don't listen for the pinch gesture while switching state, as it will cause a jump
+            // once the state switching animation is complete.
+            return false;
+        }
+        if (AbstractFloatingView.getTopOpenView(mLauncher) != null) {
+            // Don't listen for the pinch gesture if a floating view is open.
+            return false;
+        }
+
+        if (mLauncher.getDragController().isDragging()) {
+            mLauncher.getDragController().cancelDrag();
+        }
+
+        mToState = mLauncher.isInState(OVERVIEW) ? NORMAL : OVERVIEW;
+        mCurrentAnimation = mLauncher.getStateManager()
+                .createAnimationToNewWorkspace(mToState, OVERVIEW_TRANSITION_MS);
+        mCurrentAnimation.getTarget().addListener(this);
+        mPinchStarted = true;
+        mCurrentScale = 1;
+        mShouldGoToFinalState = false;
+
+        mCurrentAnimation.dispatchOnStart();
+        return true;
+    }
+
+    @Override
+    public void onAnimationEnd(Animator animation) {
+        mCurrentAnimation = null;
+        mPinchStarted = false;
+    }
+
+    @Override
+    public void onScaleEnd(ScaleGestureDetector detector) {
+        if (mShouldGoToFinalState) {
+            mCurrentAnimation.start();
+        } else {
+            mCurrentAnimation.setEndAction(new Runnable() {
+                @Override
+                public void run() {
+                    mLauncher.getStateManager().goToState(
+                            mToState == OVERVIEW ? NORMAL : OVERVIEW, false);
+                }
+            });
+            mCurrentAnimation.reverse();
+        }
+    }
+
+    @Override
+    public boolean onScale(ScaleGestureDetector detector) {
+        mCurrentScale = detector.getScaleFactor() * mCurrentScale;
+
+        // If we are zooming out, inverse the mCurrentScale so that animationFraction = [0, 1]
+        // 0 => Animation complete
+        // 1=> Animation started
+        float animationFraction = mToState == OVERVIEW ? mCurrentScale : (1 / mCurrentScale);
+
+        float velocity = (1 - detector.getScaleFactor()) / detector.getTimeDelta();
+        if (Math.abs(velocity) >= FLING_VELOCITY) {
+            LauncherState toState = velocity > 0 ? OVERVIEW : NORMAL;
+            mShouldGoToFinalState = toState == mToState;
+        } else {
+            mShouldGoToFinalState = animationFraction <= ACCEPT_THRESHOLD;
+        }
+
+        // Move the transition animation to that duration.
+        mCurrentAnimation.setPlayFraction(1 - animationFraction);
+        return true;
+    }
+}
\ No newline at end of file
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/UiFactory.java b/src_ui_overrides/com/android/launcher3/uioverrides/UiFactory.java
new file mode 100644
index 0000000..51cf661
--- /dev/null
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/UiFactory.java
@@ -0,0 +1,48 @@
+/*
+ * 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.uioverrides;
+
+import static com.android.launcher3.LauncherState.OVERVIEW;
+
+import android.view.View.AccessibilityDelegate;
+
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherStateManager.StateHandler;
+import com.android.launcher3.VerticalSwipeController;
+import com.android.launcher3.util.TouchController;
+
+public class UiFactory {
+
+    public static TouchController[] createTouchControllers(Launcher launcher) {
+        return new TouchController[] {
+                new VerticalSwipeController(launcher), new PinchToOverviewListener(launcher)};
+    }
+
+    public static AccessibilityDelegate newPageIndicatorAccessibilityDelegate() {
+        return new OverviewAccessibilityDelegate();
+    }
+
+    public static StateHandler[] getStateHandler(Launcher launcher) {
+        return new StateHandler[] {
+                (OverviewPanel) launcher.getOverviewPanel(),
+                launcher.getAllAppsController(), launcher.getWorkspace() };
+    }
+
+    public static void onWorkspaceLongPress(Launcher launcher) {
+        launcher.getStateManager().goToState(OVERVIEW);
+    }
+}
diff --git a/tests/src/com/android/launcher3/logging/FileLogTest.java b/tests/src/com/android/launcher3/logging/FileLogTest.java
index 7048c28..9c7cb8f 100644
--- a/tests/src/com/android/launcher3/logging/FileLogTest.java
+++ b/tests/src/com/android/launcher3/logging/FileLogTest.java
@@ -1,41 +1,51 @@
 package com.android.launcher3.logging;
 
-import android.test.AndroidTestCase;
-import android.test.suitebuilder.annotation.SmallTest;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.filters.SmallTest;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
 
 import java.io.File;
 import java.io.PrintWriter;
 import java.io.StringWriter;
 import java.util.Calendar;
 
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
 /**
  * Tests for {@link FileLog}
  */
 @SmallTest
-public class FileLogTest extends AndroidTestCase {
+@RunWith(AndroidJUnit4.class)
+public class FileLogTest {
 
     private File mTempDir;
 
-    @Override
-    protected void setUp() throws Exception {
-        super.setUp();
+    @Before
+    public void setUp() throws Exception {
         int count = 0;
         do {
-            mTempDir = new File(getContext().getCacheDir(), "log-test-" + (count++));
+            mTempDir = new File(InstrumentationRegistry.getTargetContext().getCacheDir(),
+                    "log-test-" + (count++));
         } while(!mTempDir.mkdir());
 
         FileLog.setDir(mTempDir);
     }
 
-    @Override
-    protected void tearDown() throws Exception {
+    @After
+    public void tearDown() throws Exception {
         // Clear existing logs
         new File(mTempDir, "log-0").delete();
         new File(mTempDir, "log-1").delete();
         mTempDir.delete();
-        super.tearDown();
     }
 
+    @Test
     public void testPrintLog() throws Exception {
         if (!FileLog.ENABLED) {
             return;
@@ -56,6 +66,7 @@
         assertTrue(writer.toString().contains("hoolalala"));
     }
 
+    @Test
     public void testOldFileTruncated() throws Exception {
         if (!FileLog.ENABLED) {
             return;
diff --git a/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.java b/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.java
index a486ceb..401711d 100644
--- a/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.java
+++ b/tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.java
@@ -7,6 +7,7 @@
 import android.content.Intent;
 import android.graphics.Rect;
 import android.net.Uri;
+import android.support.test.runner.AndroidJUnit4;
 import android.util.Pair;
 
 import com.android.launcher3.ItemInfo;
@@ -15,21 +16,25 @@
 import com.android.launcher3.ShortcutInfo;
 import com.android.launcher3.util.GridOccupancy;
 import com.android.launcher3.util.LongArrayMap;
-import com.android.launcher3.util.Provider;
 
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
 import org.mockito.ArgumentCaptor;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import static org.mockito.Matchers.isNull;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
 
 /**
  * Tests for {@link AddWorkspaceItemsTask}
  */
+@RunWith(AndroidJUnit4.class)
 public class AddWorkspaceItemsTaskTest extends BaseModelUpdateTaskTestCase {
 
     private final ComponentName mComponent1 = new ComponentName("a", "b");
@@ -39,9 +44,8 @@
     private ArrayList<Long> newScreens;
     private LongArrayMap<GridOccupancy> screenOccupancy;
 
-    @Override
-    protected void setUp() throws Exception {
-        super.setUp();
+    @Before
+    public void initData() throws Exception {
         existingScreens = new ArrayList<>();
         screenOccupancy = new LongArrayMap<>();
         newScreens = new ArrayList<>();
@@ -62,6 +66,7 @@
         };
     }
 
+    @Test
     public void testFindSpaceForItem_prefers_second() {
         // First screen has only one hole of size 1
         int nextId = setupWorkspaceWithHoles(1, 1, new Rect(2, 2, 3, 3));
@@ -83,13 +88,12 @@
                 .isRegionVacant(spaceFound.second[0], spaceFound.second[1], 2, 3));
     }
 
+    @Test
     public void testFindSpaceForItem_adds_new_screen() throws Exception {
         // First screen has 2 holes of sizes 3x2 and 2x3
         setupWorkspaceWithHoles(1, 1, new Rect(2, 0, 5, 2), new Rect(0, 2, 2, 5));
         commitScreensToDb();
 
-        when(appState.getContext()).thenReturn(getMockContext());
-
         ArrayList<Long> oldScreens = new ArrayList<>(existingScreens);
         Pair<Long, int[]> spaceFound = newTask()
                 .findSpaceForItem(appState, bgDataModel, existingScreens, newScreens, 3, 3);
@@ -97,6 +101,7 @@
         assertTrue(newScreens.contains(spaceFound.first));
     }
 
+    @Test
     public void testAddItem_existing_item_ignored() throws Exception {
         ShortcutInfo info = new ShortcutInfo();
         info.intent = new Intent().setComponent(mComponent1);
@@ -105,12 +110,11 @@
         setupWorkspaceWithHoles(1, 1, new Rect(2, 2, 3, 3));
         commitScreensToDb();
 
-        when(appState.getContext()).thenReturn(getMockContext());
-
         // Nothing was added
         assertTrue(executeTaskForTest(newTask(info)).isEmpty());
     }
 
+    @Test
     public void testAddItem_some_items_added() throws Exception {
         ShortcutInfo info = new ShortcutInfo();
         info.intent = new Intent().setComponent(mComponent1);
@@ -122,8 +126,6 @@
         setupWorkspaceWithHoles(1, 1, new Rect(2, 2, 3, 3));
         commitScreensToDb();
 
-        when(appState.getContext()).thenReturn(getMockContext());
-
         executeTaskForTest(newTask(info, info2)).get(0).run();
         ArgumentCaptor<ArrayList> notAnimated = ArgumentCaptor.forClass(ArrayList.class);
         ArgumentCaptor<ArrayList> animated = ArgumentCaptor.forClass(ArrayList.class);
@@ -168,7 +170,7 @@
     }
 
     private void commitScreensToDb() throws Exception {
-        LauncherSettings.Settings.call(getMockContentResolver(),
+        LauncherSettings.Settings.call(mProviderRule.getResolver(),
                 LauncherSettings.Settings.METHOD_CREATE_EMPTY_DB);
 
         Uri uri = LauncherSettings.WorkspaceScreens.CONTENT_URI;
@@ -183,6 +185,6 @@
             v.put(LauncherSettings.WorkspaceScreens.SCREEN_RANK, i);
             ops.add(ContentProviderOperation.newInsert(uri).withValues(v).build());
         }
-        getMockContentResolver().applyBatch(LauncherProvider.AUTHORITY, ops);
+        mProviderRule.getResolver().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 3d03507..bbb6772 100644
--- a/tests/src/com/android/launcher3/model/BaseModelUpdateTaskTestCase.java
+++ b/tests/src/com/android/launcher3/model/BaseModelUpdateTaskTestCase.java
@@ -1,7 +1,9 @@
 package com.android.launcher3.model;
 
 import android.content.ComponentName;
+import android.content.ContentResolver;
 import android.content.Context;
+import android.content.ContextWrapper;
 import android.content.Intent;
 import android.content.pm.LauncherActivityInfo;
 import android.content.res.Resources;
@@ -11,7 +13,8 @@
 import android.os.UserHandle;
 import android.support.annotation.NonNull;
 import android.support.test.InstrumentationRegistry;
-import android.test.ProviderTestCase2;
+import android.support.test.rule.provider.ProviderTestRule;
+import android.support.test.runner.AndroidJUnit4;
 
 import com.android.launcher3.AllAppsList;
 import com.android.launcher3.AppFilter;
@@ -28,6 +31,8 @@
 import com.android.launcher3.util.Provider;
 import com.android.launcher3.util.TestLauncherProvider;
 
+import org.junit.Before;
+import org.junit.Rule;
 import org.mockito.ArgumentCaptor;
 
 import java.io.BufferedReader;
@@ -46,7 +51,12 @@
 /**
  * Base class for writing tests for Model update tasks.
  */
-public class BaseModelUpdateTaskTestCase extends ProviderTestCase2<TestLauncherProvider> {
+public class BaseModelUpdateTaskTestCase {
+
+    @Rule
+    public ProviderTestRule mProviderRule =
+            new ProviderTestRule.Builder(TestLauncherProvider.class, LauncherProvider.AUTHORITY)
+                    .build();
 
     public final HashMap<Class, HashMap<String, Field>> fieldCache = new HashMap<>();
 
@@ -63,14 +73,8 @@
     public AllAppsList allAppsList;
     public Callbacks callbacks;
 
-    public BaseModelUpdateTaskTestCase() {
-        super(TestLauncherProvider.class, LauncherProvider.AUTHORITY);
-    }
-
-    @Override
-    protected void setUp() throws Exception {
-        super.setUp();
-
+    @Before
+    public void setUp() throws Exception {
         callbacks = mock(Callbacks.class);
         appState = mock(LauncherAppState.class);
         model = mock(LauncherModel.class);
@@ -83,7 +87,12 @@
         myUser = Process.myUserHandle();
 
         bgDataModel = new BgDataModel();
-        targetContext = InstrumentationRegistry.getTargetContext();
+        targetContext = new ContextWrapper(InstrumentationRegistry.getTargetContext()) {
+            @Override
+            public ContentResolver getContentResolver() {
+                return mProviderRule.getResolver();
+            }
+        };
         idp = new InvariantDeviceProfile();
         iconCache = new MyIconCache(targetContext, idp);
 
@@ -91,6 +100,8 @@
 
         when(appState.getIconCache()).thenReturn(iconCache);
         when(appState.getInvariantDeviceProfile()).thenReturn(idp);
+        when(appState.getContext()).thenReturn(targetContext);
+
     }
 
     /**
diff --git a/tests/src/com/android/launcher3/model/CacheDataUpdatedTaskTest.java b/tests/src/com/android/launcher3/model/CacheDataUpdatedTaskTest.java
index d595e6c..ac9d319 100644
--- a/tests/src/com/android/launcher3/model/CacheDataUpdatedTaskTest.java
+++ b/tests/src/com/android/launcher3/model/CacheDataUpdatedTaskTest.java
@@ -1,23 +1,34 @@
 package com.android.launcher3.model;
 
+import android.support.test.runner.AndroidJUnit4;
+
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.ShortcutInfo;
 
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
 import java.util.Arrays;
 import java.util.HashSet;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNotSame;
+import static org.junit.Assert.assertNull;
+
 /**
  * Tests for {@link CacheDataUpdatedTask}
  */
+@RunWith(AndroidJUnit4.class)
 public class CacheDataUpdatedTaskTest extends BaseModelUpdateTaskTestCase {
 
     private static final String NEW_LABEL_PREFIX = "new-label-";
 
-    @Override
-    protected void setUp() throws Exception {
-        super.setUp();
-
+    @Before
+    public void initData() throws Exception {
         initializeData("cache_data_updated_task_data");
         // Add dummy entries in the cache to simulate update
         for (ItemInfo info : bgDataModel.itemsIdMap) {
@@ -29,6 +40,7 @@
         return new CacheDataUpdatedTask(op, myUser, new HashSet<>(Arrays.asList(pkg)));
     }
 
+    @Test
     public void testCacheUpdate_update_apps() throws Exception {
         // Clear all icons from apps list so that its easy to check what was updated
         for (AppInfo info : allAppsList.data) {
@@ -52,6 +64,7 @@
         }
     }
 
+    @Test
     public void testSessionUpdate_ignores_normal_apps() throws Exception {
         executeTaskForTest(newTask(CacheDataUpdatedTask.OP_SESSION_UPDATE, "app1"));
 
@@ -59,6 +72,7 @@
         verifyUpdate();
     }
 
+    @Test
     public void testSessionUpdate_updates_pending_apps() throws Exception {
         executeTaskForTest(newTask(CacheDataUpdatedTask.OP_SESSION_UPDATE, "app3"));
 
diff --git a/tests/src/com/android/launcher3/model/GridSizeMigrationTaskTest.java b/tests/src/com/android/launcher3/model/GridSizeMigrationTaskTest.java
index fd62d36..b92f612 100644
--- a/tests/src/com/android/launcher3/model/GridSizeMigrationTaskTest.java
+++ b/tests/src/com/android/launcher3/model/GridSizeMigrationTaskTest.java
@@ -1,11 +1,16 @@
 package com.android.launcher3.model;
 
+import android.content.ContentResolver;
 import android.content.ContentValues;
+import android.content.Context;
+import android.content.ContextWrapper;
 import android.content.Intent;
 import android.database.Cursor;
 import android.graphics.Point;
-import android.test.ProviderTestCase2;
-import android.test.suitebuilder.annotation.MediumTest;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.filters.MediumTest;
+import android.support.test.rule.provider.ProviderTestRule;
+import android.support.test.runner.AndroidJUnit4;
 
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherModel;
@@ -15,15 +20,29 @@
 import com.android.launcher3.model.GridSizeMigrationTask.MultiStepMigrationTask;
 import com.android.launcher3.util.TestLauncherProvider;
 
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.LinkedList;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
 /**
  * Unit tests for {@link GridSizeMigrationTask}
  */
 @MediumTest
-public class GridSizeMigrationTaskTest extends ProviderTestCase2<TestLauncherProvider> {
+@RunWith(AndroidJUnit4.class)
+public class GridSizeMigrationTaskTest {
+
+    @Rule
+    public ProviderTestRule mProviderRule =
+            new ProviderTestRule.Builder(TestLauncherProvider.class, LauncherProvider.AUTHORITY)
+                    .build();
 
     private static final long DESKTOP = LauncherSettings.Favorites.CONTAINER_DESKTOP;
     private static final long HOTSEAT = LauncherSettings.Favorites.CONTAINER_HOTSEAT;
@@ -37,20 +56,25 @@
 
     private HashSet<String> mValidPackages;
     private InvariantDeviceProfile mIdp;
+    private Context mContext;
 
-    public GridSizeMigrationTaskTest() {
-        super(TestLauncherProvider.class, LauncherProvider.AUTHORITY);
-    }
-
-    @Override
-    protected void setUp() throws Exception {
-        super.setUp();
+    @Before
+    public void setUp() throws Exception {
         mValidPackages = new HashSet<>();
         mValidPackages.add(TEST_PACKAGE);
 
         mIdp = new InvariantDeviceProfile();
+
+        mContext = new ContextWrapper(InstrumentationRegistry.getTargetContext()) {
+
+            @Override
+            public ContentResolver getContentResolver() {
+                return mProviderRule.getResolver();
+            }
+        };
     }
 
+    @Test
     public void testHotseatMigration_apps_dropped() throws Exception {
         long[] hotseatItems = {
                 addItem(APPLICATION, 0, HOTSEAT, 0, 0),
@@ -61,7 +85,7 @@
         };
 
         mIdp.numHotseatIcons = 3;
-        new GridSizeMigrationTask(getMockContext(), mIdp, mValidPackages, 5, 3)
+        new GridSizeMigrationTask(mContext, mIdp, mValidPackages, 5, 3)
                 .migrateHotseat();
         if (FeatureFlags.NO_ALL_APPS_ICON) {
             // First item is dropped as it has the least weight.
@@ -72,6 +96,7 @@
         }
     }
 
+    @Test
     public void testHotseatMigration_shortcuts_dropped() throws Exception {
         long[] hotseatItems = {
                 addItem(APPLICATION, 0, HOTSEAT, 0, 0),
@@ -82,7 +107,7 @@
         };
 
         mIdp.numHotseatIcons = 3;
-        new GridSizeMigrationTask(getMockContext(), mIdp, mValidPackages, 5, 3)
+        new GridSizeMigrationTask(mContext, mIdp, mValidPackages, 5, 3)
                 .migrateHotseat();
         if (FeatureFlags.NO_ALL_APPS_ICON) {
             // First item is dropped as it has the least weight.
@@ -98,7 +123,7 @@
         int total = 0;
 
         for (long id : sortedIds) {
-            Cursor c = getMockContentResolver().query(LauncherSettings.Favorites.CONTENT_URI,
+            Cursor c = mProviderRule.getResolver().query(LauncherSettings.Favorites.CONTENT_URI,
                     new String[]{LauncherSettings.Favorites._ID},
                     "container=-101 and screen=" + screenId, null, null, null);
 
@@ -116,13 +141,14 @@
         }
 
         // Verify that not other entry exist in the DB.
-        Cursor c = getMockContentResolver().query(LauncherSettings.Favorites.CONTENT_URI,
+        Cursor c = mProviderRule.getResolver().query(LauncherSettings.Favorites.CONTENT_URI,
                 new String[]{LauncherSettings.Favorites._ID},
                 "container=-101", null, null, null);
         assertEquals(total, c.getCount());
         c.close();
     }
 
+    @Test
     public void testWorkspace_empty_row_column_removed() throws Exception {
         long[][][] ids = createGrid(new int[][][]{{
                 {  0,  0, -1,  1},
@@ -131,7 +157,7 @@
                 {  5,  2, -1,  6},
         }});
 
-        new GridSizeMigrationTask(getMockContext(), mIdp, mValidPackages,
+        new GridSizeMigrationTask(mContext, mIdp, mValidPackages,
                 new Point(4, 4), new Point(3, 3)).migrateWorkspace();
 
         // Column 2 and row 2 got removed.
@@ -142,6 +168,7 @@
         }});
     }
 
+    @Test
     public void testWorkspace_new_screen_created() throws Exception {
         long[][][] ids = createGrid(new int[][][]{{
                 {  0,  0,  0,  1},
@@ -150,7 +177,7 @@
                 {  5,  2, -1,  6},
         }});
 
-        new GridSizeMigrationTask(getMockContext(), mIdp, mValidPackages,
+        new GridSizeMigrationTask(mContext, mIdp, mValidPackages,
                 new Point(4, 4), new Point(3, 3)).migrateWorkspace();
 
         // Items in the second column get moved to new screen
@@ -163,6 +190,7 @@
         }});
     }
 
+    @Test
     public void testWorkspace_items_merged_in_next_screen() throws Exception {
         long[][][] ids = createGrid(new int[][][]{{
                 {  0,  0,  0,  1},
@@ -174,7 +202,7 @@
                 {  3,  1, -1,  4},
         }});
 
-        new GridSizeMigrationTask(getMockContext(), mIdp, mValidPackages,
+        new GridSizeMigrationTask(mContext, mIdp, mValidPackages,
                 new Point(4, 4), new Point(3, 3)).migrateWorkspace();
 
         // Items in the second column of the first screen should get placed on the 3rd
@@ -190,6 +218,7 @@
         }});
     }
 
+    @Test
     public void testWorkspace_items_not_merged_in_next_screen() throws Exception {
         // First screen has 2 items that need to be moved, but second screen has only one
         // empty space after migration (top-left corner)
@@ -205,7 +234,7 @@
                 {  5,  2, -1,  6},
         }});
 
-        new GridSizeMigrationTask(getMockContext(), mIdp, mValidPackages,
+        new GridSizeMigrationTask(mContext, mIdp, mValidPackages,
                 new Point(4, 4), new Point(3, 3)).migrateWorkspace();
 
         // Items in the second column of the first screen should get placed on a new screen.
@@ -222,6 +251,7 @@
         }});
     }
 
+    @Test
     public void testWorkspace_first_row_blocked() throws Exception {
         // The first screen has one item on the 4th column which needs moving, as the first row
         // will be kept empty.
@@ -232,7 +262,7 @@
                 {  5,  2,  7, -1},
         }}, 0);
 
-        new GridSizeMigrationTask(getMockContext(), mIdp, mValidPackages,
+        new GridSizeMigrationTask(mContext, mIdp, mValidPackages,
                 new Point(4, 4), new Point(3, 4)).migrateWorkspace();
 
         // Items in the second column of the first screen should get placed on a new screen.
@@ -246,6 +276,7 @@
         }});
     }
 
+    @Test
     public void testWorkspace_items_moved_to_empty_first_row() throws Exception {
         // Items will get moved to the next screen to keep the first screen empty.
         long[][][] ids = createGrid(new int[][][]{{
@@ -255,7 +286,7 @@
                 {  5,  6,  7, -1},
         }}, 0);
 
-        new GridSizeMigrationTask(getMockContext(), mIdp, mValidPackages,
+        new GridSizeMigrationTask(mContext, mIdp, mValidPackages,
                 new Point(4, 4), new Point(3, 3)).migrateWorkspace();
 
         // Items in the second column of the first screen should get placed on a new screen.
@@ -281,7 +312,7 @@
      * @return the same grid representation where each entry is the corresponding item id.
      */
     private long[][][] createGrid(int[][][] typeArray, long startScreen) throws Exception {
-        LauncherSettings.Settings.call(getMockContentResolver(),
+        LauncherSettings.Settings.call(mProviderRule.getResolver(),
                 LauncherSettings.Settings.METHOD_CREATE_EMPTY_DB);
         long[][][] ids = new long[typeArray.length][][];
 
@@ -290,13 +321,13 @@
             long screenId = startScreen + i;
 
             // Keep the screen id counter up to date
-            LauncherSettings.Settings.call(getMockContentResolver(),
+            LauncherSettings.Settings.call(mProviderRule.getResolver(),
                     LauncherSettings.Settings.METHOD_NEW_SCREEN_ID);
 
             ContentValues v = new ContentValues();
             v.put(LauncherSettings.WorkspaceScreens._ID, screenId);
             v.put(LauncherSettings.WorkspaceScreens.SCREEN_RANK, i);
-            getMockContentResolver().insert(LauncherSettings.WorkspaceScreens.CONTENT_URI, v);
+            mProviderRule.getResolver().insert(LauncherSettings.WorkspaceScreens.CONTENT_URI, v);
 
             ids[i] = new long[typeArray[i].length][];
             for (int y = 0; y < typeArray[i].length; y++) {
@@ -320,7 +351,7 @@
      *            represent the workspace grid.
      */
     private void verifyWorkspace(long[][][] ids) {
-        ArrayList<Long> allScreens = LauncherModel.loadWorkspaceScreensDb(getMockContext());
+        ArrayList<Long> allScreens = LauncherModel.loadWorkspaceScreensDb(mContext);
         assertEquals(ids.length, allScreens.size());
         int total = 0;
 
@@ -330,7 +361,8 @@
                 for (int x = 0; x < ids[i][y].length; x++) {
                     long id = ids[i][y][x];
 
-                    Cursor c = getMockContentResolver().query(LauncherSettings.Favorites.CONTENT_URI,
+                    Cursor c = mProviderRule.getResolver().query(
+                            LauncherSettings.Favorites.CONTENT_URI,
                             new String[]{LauncherSettings.Favorites._ID},
                             "container=-100 and screen=" + screenId +
                                     " and cellX=" + x + " and cellY=" + y, null, null, null);
@@ -349,7 +381,7 @@
         }
 
         // Verify that not other entry exist in the DB.
-        Cursor c = getMockContentResolver().query(LauncherSettings.Favorites.CONTENT_URI,
+        Cursor c = mProviderRule.getResolver().query(LauncherSettings.Favorites.CONTENT_URI,
                 new String[]{LauncherSettings.Favorites._ID},
                 "container=-100", null, null, null);
         assertEquals(total, c.getCount());
@@ -362,7 +394,7 @@
      *             folder (where the type represents the number of items in the folder).
      */
     private long addItem(int type, long screen, long container, int x, int y) throws Exception {
-        long id = LauncherSettings.Settings.call(getMockContentResolver(),
+        long id = LauncherSettings.Settings.call(mProviderRule.getResolver(),
                 LauncherSettings.Settings.METHOD_NEW_ITEM_ID)
                 .getLong(LauncherSettings.Settings.EXTRA_VALUE);
 
@@ -387,16 +419,18 @@
             }
         }
 
-        getMockContentResolver().insert(LauncherSettings.Favorites.CONTENT_URI, values);
+        mProviderRule.getResolver().insert(LauncherSettings.Favorites.CONTENT_URI, values);
         return id;
     }
 
+    @Test
     public void testMultiStepMigration_small_to_large() throws Exception {
         MultiStepMigrationTaskVerifier verifier = new MultiStepMigrationTaskVerifier();
         verifier.migrate(new Point(3, 3), new Point(5, 5));
         verifier.assertCompleted();
     }
 
+    @Test
     public void testMultiStepMigration_large_to_small() throws Exception {
         MultiStepMigrationTaskVerifier verifier = new MultiStepMigrationTaskVerifier(
                 5, 5, 4, 4,
@@ -406,6 +440,7 @@
         verifier.assertCompleted();
     }
 
+    @Test
     public void testMultiStepMigration_zig_zag() throws Exception {
         MultiStepMigrationTaskVerifier verifier = new MultiStepMigrationTaskVerifier(
                 5, 7, 4, 7,
diff --git a/tests/src/com/android/launcher3/model/PackageInstallStateChangedTaskTest.java b/tests/src/com/android/launcher3/model/PackageInstallStateChangedTaskTest.java
index ed893c4..0a741c4 100644
--- a/tests/src/com/android/launcher3/model/PackageInstallStateChangedTaskTest.java
+++ b/tests/src/com/android/launcher3/model/PackageInstallStateChangedTaskTest.java
@@ -1,22 +1,30 @@
 package com.android.launcher3.model;
 
+import android.support.test.runner.AndroidJUnit4;
+
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.ShortcutInfo;
 import com.android.launcher3.compat.PackageInstallerCompat;
 import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo;
 
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
 import java.util.Arrays;
 import java.util.HashSet;
 
+import static org.junit.Assert.assertEquals;
+
 /**
  * Tests for {@link PackageInstallStateChangedTask}
  */
+@RunWith(AndroidJUnit4.class)
 public class PackageInstallStateChangedTaskTest extends BaseModelUpdateTaskTestCase {
 
-    @Override
-    protected void setUp() throws Exception {
-        super.setUp();
+    @Before
+    public void initData() throws Exception {
         initializeData("package_install_state_change_task_data");
     }
 
@@ -26,6 +34,7 @@
         return new PackageInstallStateChangedTask(installInfo);
     }
 
+    @Test
     public void testSessionUpdate_ignore_installed() throws Exception {
         executeTaskForTest(newTask("app1", 30));
 
@@ -33,12 +42,14 @@
         verifyProgressUpdate(0);
     }
 
+    @Test
     public void testSessionUpdate_shortcuts_updated() throws Exception {
         executeTaskForTest(newTask("app3", 30));
 
         verifyProgressUpdate(30, 5L, 6L, 7L);
     }
 
+    @Test
     public void testSessionUpdate_widgets_updated() throws Exception {
         executeTaskForTest(newTask("app4", 30));
 
diff --git a/tests/src/com/android/launcher3/provider/RestoreDbTaskTest.java b/tests/src/com/android/launcher3/provider/RestoreDbTaskTest.java
index 5858e13..5d417b5 100644
--- a/tests/src/com/android/launcher3/provider/RestoreDbTaskTest.java
+++ b/tests/src/com/android/launcher3/provider/RestoreDbTaskTest.java
@@ -3,23 +3,32 @@
 import android.content.ContentValues;
 import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
-import android.test.AndroidTestCase;
-import android.test.suitebuilder.annotation.MediumTest;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.filters.MediumTest;
+import android.support.test.runner.AndroidJUnit4;
 
 import com.android.launcher3.LauncherProvider.DatabaseHelper;
 import com.android.launcher3.LauncherSettings.Favorites;
 
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.assertEquals;
+
 /**
  * Tests for {@link RestoreDbTask}
  */
 @MediumTest
-public class RestoreDbTaskTest extends AndroidTestCase {
+@RunWith(AndroidJUnit4.class)
+public class RestoreDbTaskTest {
 
+    @Test
     public void testGetProfileId() throws Exception {
         SQLiteDatabase db = new MyDatabaseHelper(23).getWritableDatabase();
         assertEquals(23, new RestoreDbTask().getDefaultProfileId(db));
     }
 
+    @Test
     public void testMigrateProfileId() throws Exception {
         SQLiteDatabase db = new MyDatabaseHelper(42).getWritableDatabase();
         // Add some dummy data
@@ -57,7 +66,7 @@
         private final long mProfileId;
 
         MyDatabaseHelper(long profileId) {
-            super(getContext(), null, null);
+            super(InstrumentationRegistry.getContext(), null, null);
             mProfileId = profileId;
         }
 
@@ -66,6 +75,9 @@
             return mProfileId;
         }
 
+        @Override
+        protected void handleOneTimeDataUpgrade(SQLiteDatabase db) { }
+
         protected void onEmptyDbCreated() { }
     }
 }
diff --git a/tests/src/com/android/launcher3/util/FocusLogicTest.java b/tests/src/com/android/launcher3/util/FocusLogicTest.java
index 79aed80..691d9bc 100644
--- a/tests/src/com/android/launcher3/util/FocusLogicTest.java
+++ b/tests/src/com/android/launcher3/util/FocusLogicTest.java
@@ -16,30 +16,24 @@
 
 package com.android.launcher3.util;
 
-import android.test.AndroidTestCase;
-import android.test.suitebuilder.annotation.SmallTest;
+import android.support.test.filters.SmallTest;
+import android.support.test.runner.AndroidJUnit4;
 import android.view.KeyEvent;
-import android.view.View;
 
-import com.android.launcher3.util.FocusLogic;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
 
 /**
  * Tests the {@link FocusLogic} class that handles key event based focus handling.
  */
 @SmallTest
-public final class FocusLogicTest extends AndroidTestCase {
+@RunWith(AndroidJUnit4.class)
+public final class FocusLogicTest {
 
-    @Override
-    protected void setUp() throws Exception {
-        super.setUp();
-        // Nothing to set up as this class only tests static methods.
-    }
-
-    @Override
-    protected void tearDown() throws Exception {
-        // Nothing to tear down as this class only tests static methods.
-    }
-
+    @Test
     public void testShouldConsume() {
          assertTrue(FocusLogic.shouldConsume(KeyEvent.KEYCODE_DPAD_LEFT));
          assertTrue(FocusLogic.shouldConsume(KeyEvent.KEYCODE_DPAD_RIGHT));
@@ -51,12 +45,14 @@
          assertTrue(FocusLogic.shouldConsume(KeyEvent.KEYCODE_PAGE_DOWN));
     }
 
+    @Test
     public void testCreateSparseMatrix() {
          // Either, 1) create a helper method to generate/instantiate all possible cell layout that
          // may get created in real world to test this method. OR 2) Move all the matrix
          // management routine to celllayout and write tests for them.
     }
 
+    @Test
     public void testMoveFromBottomRightToBottomLeft() {
         int[][] map = transpose(new int[][] {
                 {-1, 0, -1, -1, -1, -1},
@@ -69,6 +65,7 @@
         assertEquals(1, i);
     }
 
+    @Test
     public void testMoveFromBottomRightToTopLeft() {
         int[][] map = transpose(new int[][] {
                 {-1, 0, -1, -1, -1, -1},
@@ -81,6 +78,7 @@
         assertEquals(FocusLogic.NEXT_PAGE_FIRST_ITEM, i);
     }
 
+    @Test
     public void testMoveIntoHotseatWithEqualHotseatAndWorkspaceColumns() {
         // Test going from an icon right above the All Apps button to the All Apps button.
         int[][] map = transpose(new int[][] {
@@ -105,6 +103,7 @@
         assertEquals(4, i);
     }
 
+    @Test
     public void testMoveIntoHotseatWithExtraColumnForAllApps() {
         // Test going from an icon above and to the left
         // of the All Apps button to the All Apps button.
@@ -187,6 +186,7 @@
         assertEquals(12, i);
     }
 
+    @Test
     public void testCrossingAllAppsColumn() {
         // Test crossing from left to right in portrait.
         int[][] map = transpose(new int[][] {
diff --git a/tests/src/com/android/launcher3/util/GridOccupancyTest.java b/tests/src/com/android/launcher3/util/GridOccupancyTest.java
index 7d0fe71..fdd8e88 100644
--- a/tests/src/com/android/launcher3/util/GridOccupancyTest.java
+++ b/tests/src/com/android/launcher3/util/GridOccupancyTest.java
@@ -1,15 +1,23 @@
 package com.android.launcher3.util;
 
-import android.test.suitebuilder.annotation.SmallTest;
+import android.support.test.filters.SmallTest;
+import android.support.test.runner.AndroidJUnit4;
 
-import junit.framework.TestCase;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
 
 /**
  * Unit tests for {@link GridOccupancy}
  */
 @SmallTest
-public class GridOccupancyTest extends TestCase {
+@RunWith(AndroidJUnit4.class)
+public class GridOccupancyTest {
 
+    @Test
     public void testFindVacantCell() {
         GridOccupancy grid = initGrid(4,
                 1, 1, 1, 0, 0,
@@ -30,6 +38,7 @@
         assertFalse(grid.findVacantCell(vacant, 3, 3));
     }
 
+    @Test
     public void testIsRegionVacant() {
         GridOccupancy grid = initGrid(4,
                 1, 1, 1, 0, 0,