diff --git a/quickstep/res/drawable/bg_overview_clear_all_button.xml b/quickstep/res/drawable/bg_overview_clear_all_button.xml
new file mode 100644
index 0000000..47cbd9f
--- /dev/null
+++ b/quickstep/res/drawable/bg_overview_clear_all_button.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2021 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.
+-->
+<ripple android:color="?android:attr/colorControlHighlight"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:androidprv="http://schemas.android.com/apk/prv/res/android">
+    <item>
+        <shape android:shape="rectangle"
+            android:tint="?colorButtonNormal">
+            <corners android:radius="18dp" />
+            <solid android:color="?androidprv:attr/colorSurface"/>
+        </shape>
+    </item>
+</ripple>
\ No newline at end of file
diff --git a/quickstep/res/drawable/taskbar_edu_splitscreen.png b/quickstep/res/drawable/taskbar_edu_splitscreen.png
new file mode 100644
index 0000000..f9d2a63
--- /dev/null
+++ b/quickstep/res/drawable/taskbar_edu_splitscreen.png
Binary files differ
diff --git a/quickstep/res/drawable/taskbar_edu_splitscreen.webp b/quickstep/res/drawable/taskbar_edu_splitscreen.webp
deleted file mode 100644
index 2f4402f..0000000
--- a/quickstep/res/drawable/taskbar_edu_splitscreen.webp
+++ /dev/null
Binary files differ
diff --git a/quickstep/res/drawable/taskbar_edu_stashing.png b/quickstep/res/drawable/taskbar_edu_stashing.png
new file mode 100644
index 0000000..f9d2a63
--- /dev/null
+++ b/quickstep/res/drawable/taskbar_edu_stashing.png
Binary files differ
diff --git a/quickstep/res/drawable/taskbar_edu_switch_apps.png b/quickstep/res/drawable/taskbar_edu_switch_apps.png
new file mode 100644
index 0000000..f9d2a63
--- /dev/null
+++ b/quickstep/res/drawable/taskbar_edu_switch_apps.png
Binary files differ
diff --git a/quickstep/res/layout/overview_actions_container.xml b/quickstep/res/layout/overview_actions_container.xml
index 0c2a28c..acbb5b9 100644
--- a/quickstep/res/layout/overview_actions_container.xml
+++ b/quickstep/res/layout/overview_actions_container.xml
@@ -47,6 +47,23 @@
             android:layout_weight="1" />
 
         <Button
+            android:id="@+id/action_split"
+            style="@style/OverviewActionButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:drawableStart="@drawable/ic_split_screen"
+            android:text="@string/action_split"
+            android:theme="@style/ThemeControlHighlightWorkspaceColor"
+            android:visibility="gone" />
+
+        <Space
+            android:id="@+id/action_split_space"
+            android:layout_width="0dp"
+            android:layout_height="1dp"
+            android:layout_weight="1"
+            android:visibility="gone" />
+
+        <Button
             android:id="@+id/action_share"
             style="@style/OverviewActionButton"
             android:layout_width="wrap_content"
diff --git a/quickstep/res/layout/overview_clear_all_button.xml b/quickstep/res/layout/overview_clear_all_button.xml
index 1ee726e..1dea57e 100644
--- a/quickstep/res/layout/overview_clear_all_button.xml
+++ b/quickstep/res/layout/overview_clear_all_button.xml
@@ -16,7 +16,7 @@
 -->
 <com.android.quickstep.views.ClearAllButton
     xmlns:android="http://schemas.android.com/apk/res/android"
-    style="@android:style/Widget.DeviceDefault.Button.Borderless"
+    style="@style/OverviewClearAllButton"
     android:id="@+id/clear_all"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
diff --git a/quickstep/res/layout/taskbar_edu.xml b/quickstep/res/layout/taskbar_edu.xml
index ef57a53..3796ff9 100644
--- a/quickstep/res/layout/taskbar_edu.xml
+++ b/quickstep/res/layout/taskbar_edu.xml
@@ -43,6 +43,26 @@
             launcher:pageIndicator="@+id/content_page_indicator">
 
             <LinearLayout
+                android:id="@+id/page_switch_apps"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:gravity="center_horizontal">
+
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    style="@style/TextAppearance.TaskbarEdu.Title"
+                    android:text="@string/taskbar_edu_switch_apps"/>
+
+                <ImageView
+                    android:layout_width="322dp"
+                    android:layout_height="282dp"
+                    android:layout_marginTop="16dp"
+                    android:src="@drawable/taskbar_edu_switch_apps"/>
+            </LinearLayout>
+
+            <LinearLayout
                 android:id="@+id/page_splitscreen"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
@@ -52,14 +72,8 @@
                 <TextView
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                    android:layout_marginHorizontal="16dp"
-                    android:gravity="center_horizontal"
-                    style="@style/TextHeadline"
-                    android:text="@string/taskbar_edu_splitscreen"
-                    android:fontFamily="google-sans"
-                    android:textColor="?android:attr/textColorPrimary"
-                    android:textSize="24sp"
-                    android:maxLines="2"/>
+                    style="@style/TextAppearance.TaskbarEdu.Title"
+                    android:text="@string/taskbar_edu_splitscreen"/>
 
                 <ImageView
                     android:layout_width="322dp"
@@ -69,7 +83,7 @@
             </LinearLayout>
 
             <LinearLayout
-                android:id="@+id/page_customize"
+                android:id="@+id/page_stashing"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:orientation="vertical"
@@ -78,46 +92,14 @@
                 <TextView
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                    android:layout_marginHorizontal="16dp"
-                    android:gravity="center_horizontal"
-                    style="@style/TextHeadline"
-                    android:text="@string/taskbar_edu_customize"
-                    android:fontFamily="google-sans"
-                    android:textColor="?android:attr/textColorPrimary"
-                    android:textSize="24sp"
-                    android:maxLines="2"/>
+                    style="@style/TextAppearance.TaskbarEdu.Title"
+                    android:text="@string/taskbar_edu_stashing"/>
 
                 <ImageView
                     android:layout_width="322dp"
                     android:layout_height="282dp"
                     android:layout_marginTop="16dp"
-                    android:src="@drawable/taskbar_edu_splitscreen"/>
-            </LinearLayout>
-
-            <LinearLayout
-                android:id="@+id/page_dock"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="vertical"
-                android:gravity="center_horizontal">
-
-                <TextView
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_marginHorizontal="16dp"
-                    android:gravity="center_horizontal"
-                    style="@style/TextHeadline"
-                    android:text="@string/taskbar_edu_dock"
-                    android:fontFamily="google-sans"
-                    android:textColor="?android:attr/textColorPrimary"
-                    android:textSize="24sp"
-                    android:maxLines="2"/>
-
-                <ImageView
-                    android:layout_width="322dp"
-                    android:layout_height="282dp"
-                    android:layout_marginTop="16dp"
-                    android:src="@drawable/taskbar_edu_splitscreen"/>
+                    android:src="@drawable/taskbar_edu_stashing"/>
             </LinearLayout>
         </com.android.launcher3.taskbar.TaskbarEduPagedView>
 
@@ -126,6 +108,7 @@
             android:layout_width="wrap_content"
             android:layout_height="36dp"
             android:layout_marginBottom="92dp"
+            android:layout_marginTop="32dp"
             app:layout_constraintTop_toBottomOf="@id/content"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintStart_toStartOf="parent"
@@ -146,10 +129,9 @@
         <Button
             android:id="@+id/edu_end_button"
             android:layout_width="wrap_content"
-            android:layout_height="36dp"
-            android:layout_marginBottom="92dp"
-            app:layout_constraintTop_toBottomOf="@id/content"
-            app:layout_constraintBottom_toBottomOf="parent"
+            android:layout_height="0dp"
+            app:layout_constraintTop_toTopOf="@id/edu_start_button"
+            app:layout_constraintBottom_toBottomOf="@id/edu_start_button"
             app:layout_constraintEnd_toEndOf="parent"
             android:text="@string/taskbar_edu_next"
             style="@style/TaskbarEdu.Button.Next"
diff --git a/quickstep/res/values/dimens.xml b/quickstep/res/values/dimens.xml
index f1f23c4..1ec5bb8 100644
--- a/quickstep/res/values/dimens.xml
+++ b/quickstep/res/values/dimens.xml
@@ -166,5 +166,6 @@
     <dimen name="taskbar_stashed_size">24dp</dimen>
     <dimen name="taskbar_stashed_handle_width">220dp</dimen>
     <dimen name="taskbar_stashed_handle_height">6dp</dimen>
-    <dimen name="taskbar_edu_bg_corner_radius">28dp</dimen>
+    <dimen name="taskbar_edu_wave_anim_trans_y">25dp</dimen>
+    <dimen name="taskbar_edu_wave_anim_trans_y_return_overshoot">4dp</dimen>
 </resources>
diff --git a/quickstep/res/values/strings.xml b/quickstep/res/values/strings.xml
index 2916121..7158287 100644
--- a/quickstep/res/values/strings.xml
+++ b/quickstep/res/values/strings.xml
@@ -191,6 +191,8 @@
     <string name="action_share">Share</string>
     <!-- Label for a button that causes a screen shot of the current app to be taken. [CHAR_LIMIT=40] -->
     <string name="action_screenshot">Screenshot</string>
+    <!-- Label for a button that enters split screen selection mode. [CHAR_LIMIT=20] -->
+    <string name="action_split">Split</string>
     <!-- Message shown when an action is blocked by a policy enforced by the app or the organization managing the device. [CHAR_LIMIT=NONE] -->
     <string name="blocked_by_policy">This action isn\'t allowed by the app or your organization</string>
 
@@ -209,15 +211,15 @@
     <string name="taskbar_edu_opened">Taskbar education appeared</string>
     <!-- Accessibility text spoken when the taskbar education panel disappears [CHAR_LIMIT=NONE] -->
     <string name="taskbar_edu_closed">Taskbar education closed</string>
-    <!-- Text in dialog that lets a user know how they can use the taskbar to use multiple apps on their device.
+    <!-- Text in dialog that lets a user know how they can use the taskbar to switch apps on their device.
          [CHAR_LIMIT=60] -->
-    <string name="taskbar_edu_splitscreen" translatable="false">Use 2 apps at once and switch apps with the taskbar</string>
-    <!-- Text in dialog that lets a user know how they can customize the taskbar on their device.
+    <string name="taskbar_edu_switch_apps" translatable="false">Use the taskbar to switch apps</string>
+    <!-- Text in dialog that lets a user know how they can use the taskbar to use multiple apps at once on their device.
          [CHAR_LIMIT=60] -->
-    <string name="taskbar_edu_customize" translatable="false">Add your favorite apps and get automatic suggestions</string>
+    <string name="taskbar_edu_splitscreen" translatable="false">Drag to the side to use two apps at once</string>
     <!-- Text in dialog that lets a user know how they can hide the taskbar on their device.
          [CHAR_LIMIT=60] -->
-    <string name="taskbar_edu_dock">Touch &amp; hold to hide the taskbar anytime</string>
+    <string name="taskbar_edu_stashing">Touch &amp; hold to hide the taskbar</string>
     <!-- Text on button to go to the next screen of a tutorial [CHAR_LIMIT=16] -->
     <string name="taskbar_edu_next">Next</string>
     <!-- Text on button to go to the previous screen of a tutorial [CHAR_LIMIT=16] -->
diff --git a/quickstep/res/values/styles.xml b/quickstep/res/values/styles.xml
index ac70279..b5444b5 100644
--- a/quickstep/res/values/styles.xml
+++ b/quickstep/res/values/styles.xml
@@ -135,6 +135,13 @@
         <item name="android:textAllCaps">false</item>
     </style>
 
+    <style name="OverviewClearAllButton" parent="@android:style/Widget.DeviceDefault.Button">
+        <item name="android:background">@drawable/bg_overview_clear_all_button</item>
+        <item name="android:minWidth">85dp</item>
+        <item name="android:minHeight">36dp</item>
+        <item name="android:stateListAnimator">@null</item>
+    </style>
+
     <!-- Icon displayed on the taskbar -->
     <style name="BaseIcon.Workspace.Taskbar" >
         <item name="iconDisplay">taskbar</item>
@@ -153,4 +160,14 @@
         <item name="android:textSize">16sp</item>
         <item name="android:padding">4dp</item>
     </style>
+
+    <style name="TextAppearance.TaskbarEdu.Title"
+        parent="@android:style/TextAppearance.DeviceDefault.DialogWindowTitle" >
+        <item name="android:layout_marginHorizontal">16dp</item>
+        <item name="android:gravity">center_horizontal</item>
+        <item name="android:fontFamily">google-sans</item>
+        <item name="android:textColor">?android:attr/textColorPrimary</item>
+        <item name="android:textSize">24sp</item>
+        <item name="android:lines">2</item>
+    </style>
 </resources>
\ No newline at end of file
diff --git a/quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java b/quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java
index b40a1d5..13baf56 100644
--- a/quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java
+++ b/quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java
@@ -200,6 +200,7 @@
         }
 
         int predictionIndex = 0;
+        int numViewsAnimated = 0;
         ArrayList<WorkspaceItemInfo> newItems = new ArrayList<>();
         // make sure predicted icon removal and filling predictions don't step on each other
         if (mIconRemoveAnimators != null && mIconRemoveAnimators.isRunning()) {
@@ -233,7 +234,11 @@
                     (WorkspaceItemInfo) mPredictedItems.get(predictionIndex++);
             if (isPredictedIcon(child) && child.isEnabled()) {
                 PredictedAppIcon icon = (PredictedAppIcon) child;
-                icon.applyFromWorkspaceItem(predictedItem);
+                boolean animateIconChange = icon.shouldAnimateIconChange(predictedItem);
+                icon.applyFromWorkspaceItem(predictedItem, animateIconChange, numViewsAnimated);
+                if (animateIconChange) {
+                    numViewsAnimated++;
+                }
                 icon.finishBinding(mPredictionLongClickListener);
             } else {
                 newItems.add(predictedItem);
diff --git a/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java b/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
index a9c2a5e..5769f0b 100644
--- a/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
+++ b/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
@@ -44,7 +44,6 @@
 import androidx.annotation.WorkerThread;
 
 import com.android.launcher3.InvariantDeviceProfile;
-import com.android.launcher3.InvariantDeviceProfile.OnIDPChangeListener;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.logging.InstanceId;
 import com.android.launcher3.logging.InstanceIdSequence;
@@ -68,7 +67,7 @@
 /**
  * Model delegate which loads prediction items
  */
-public class QuickstepModelDelegate extends ModelDelegate implements OnIDPChangeListener {
+public class QuickstepModelDelegate extends ModelDelegate {
 
     public static final String LAST_PREDICTION_ENABLED_STATE = "last_prediction_enabled_state";
     private static final String LAST_SNAPSHOT_TIME_MILLIS = "LAST_SNAPSHOT_TIME_MILLIS";
@@ -93,7 +92,6 @@
         mAppEventProducer = new AppEventProducer(context, this::onAppTargetEvent);
 
         mIDP = InvariantDeviceProfile.INSTANCE.get(context);
-        mIDP.addOnChangeListener(this);
         StatsLogCompatManager.LOGS_CONSUMER.add(mAppEventProducer);
     }
 
@@ -179,7 +177,6 @@
         StatsLogCompatManager.LOGS_CONSUMER.remove(mAppEventProducer);
 
         destroyPredictors();
-        mIDP.removeOnChangeListener(this);
     }
 
     private void destroyPredictors() {
@@ -250,12 +247,6 @@
         mWidgetsRecommendationState.predictor.requestPredictionUpdate();
     }
 
-    @Override
-    public void onIdpChanged(InvariantDeviceProfile profile) {
-        // Reinitialize everything
-        Executors.MODEL_EXECUTOR.execute(this::recreatePredictors);
-    }
-
     private void onAppTargetEvent(AppTargetEvent event, int client) {
         PredictorState state = client == CONTAINER_PREDICTION ? mAllAppsState : mHotseatState;
         if (state.predictor != null) {
diff --git a/quickstep/src/com/android/launcher3/statehandlers/DepthController.java b/quickstep/src/com/android/launcher3/statehandlers/DepthController.java
index 68159fa..ab88b2b 100644
--- a/quickstep/src/com/android/launcher3/statehandlers/DepthController.java
+++ b/quickstep/src/com/android/launcher3/statehandlers/DepthController.java
@@ -296,13 +296,10 @@
         }
 
         if (supportsBlur) {
-            // We cannot mark the window as opaque in overview because there will be an app window
-            // below the launcher layer, and we need to draw it -- without blurs.
-            boolean isOverview = mLauncher.isInState(LauncherState.OVERVIEW);
-            boolean opaque = mLauncher.getScrimView().isFullyOpaque() && !isOverview;
+            boolean opaque = mLauncher.getScrimView().isFullyOpaque();
 
-            int blur = opaque || isOverview || !mCrossWindowBlursEnabled
-                    || mBlurDisabledForAppLaunch ? 0 : (int) (depth * mMaxBlurRadius);
+            int blur = !mCrossWindowBlursEnabled || mBlurDisabledForAppLaunch
+                    ? 0 : (int) (depth * mMaxBlurRadius);
             SurfaceControl.Transaction transaction = new SurfaceControl.Transaction()
                     .setBackgroundBlurRadius(mSurface, blur)
                     .setOpaque(mSurface, opaque);
diff --git a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
index da10bfb..acabb0d 100644
--- a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
@@ -34,6 +34,7 @@
 import com.android.launcher3.R;
 import com.android.launcher3.anim.AnimatorListeners;
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.model.data.ItemInfoWithIcon;
 import com.android.launcher3.util.MultiValueAlpha;
 import com.android.launcher3.util.MultiValueAlpha.AlphaProperty;
 import com.android.launcher3.util.OnboardingPrefs;
@@ -45,6 +46,9 @@
 import com.android.quickstep.views.RecentsView;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 
+import java.util.Arrays;
+import java.util.stream.Stream;
+
 /**
  * A data source which integrates with a Launcher instance
  */
@@ -268,6 +272,11 @@
         mTaskbarOverrideBackgroundAlpha.updateValue(forceHide ? 0 : 1);
     }
 
+    @Override
+    public Stream<ItemInfoWithIcon> getAppIconsForEdu() {
+        return Arrays.stream(mLauncher.getAppsView().getAppsStore().getApps());
+    }
+
     /**
      * Starts the taskbar education flow, if the user hasn't seen it yet.
      */
diff --git a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
index e871c25..046ee6f 100644
--- a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
@@ -38,6 +38,7 @@
 import android.graphics.Region;
 import android.graphics.Region.Op;
 import android.graphics.drawable.AnimatedVectorDrawable;
+import android.provider.Settings;
 import android.util.Property;
 import android.view.View;
 import android.view.View.OnClickListener;
@@ -54,6 +55,7 @@
 import com.android.launcher3.taskbar.contextual.RotationButton;
 import com.android.launcher3.taskbar.contextual.RotationButtonController;
 import com.android.launcher3.util.MultiValueAlpha;
+import com.android.launcher3.util.SettingsCache;
 import com.android.quickstep.AnimatedFloat;
 
 import java.util.ArrayList;
@@ -145,7 +147,10 @@
                 .getKeyguardBgTaskbar(),
                 flags -> (flags & FLAG_KEYGUARD_VISIBLE) == 0, AnimatedFloat.VALUE, 1, 0));
 
-        if (mContext.isThreeButtonNav()) {
+        // Force nav buttons (specifically back button) to be visible during setup wizard.
+        boolean areButtonsForcedVisible = !SettingsCache.INSTANCE.get(mContext).getValue(
+                Settings.Secure.getUriFor(Settings.Secure.USER_SETUP_COMPLETE), 0);
+        if (mContext.isThreeButtonNav() || areButtonsForcedVisible) {
             initButtons(mNavButtonContainer, mEndContextualContainer,
                     mControllers.navButtonController);
 
@@ -261,6 +266,13 @@
     }
 
     /**
+     * Returns true if the recents (overview) button is disabled
+     */
+    public boolean isRecentsDisabled() {
+        return (mState & FLAG_DISABLE_RECENTS) != 0;
+    }
+
+    /**
      * Adds the bounds corresponding to all visible buttons to provided region
      */
     public void addVisibleButtonsRegion(TaskbarDragLayer parent, Region outRegion) {
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index 8d7a6dc..8c12567 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -236,6 +236,8 @@
                 systemUiStateFlags, forceUpdate);
         mControllers.taskbarViewController.setImeIsVisible(
                 mControllers.navbarButtonsViewController.isImeVisible());
+        mControllers.taskbarViewController.setRecentsButtonDisabled(
+                mControllers.navbarButtonsViewController.isRecentsDisabled());
         mControllers.taskbarKeyguardController.updateStateForSysuiFlags(systemUiStateFlags);
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
index b32a41e..1197543 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
@@ -78,6 +78,7 @@
         taskbarKeyguardController.init(navbarButtonsViewController);
         stashedHandleViewController.init(this);
         taskbarStashController.init(this);
+        taskbarEduController.init(this);
     }
 
     /**
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarEduController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarEduController.java
index ae9592d..fd5c2ea 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarEduController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarEduController.java
@@ -15,16 +15,72 @@
  */
 package com.android.launcher3.taskbar;
 
+import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
+import static com.android.launcher3.anim.Interpolators.ACCEL_2;
+import static com.android.launcher3.anim.Interpolators.ACCEL_DEACCEL;
+import static com.android.launcher3.anim.Interpolators.DEACCEL;
+import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.AnimatorSet;
+import android.animation.Keyframe;
+import android.animation.ObjectAnimator;
+import android.animation.PropertyValuesHolder;
+import android.animation.TimeInterpolator;
+import android.content.res.Resources;
+import android.text.TextUtils;
+import android.view.View;
+
 import com.android.launcher3.R;
+import com.android.launcher3.icons.BitmapInfo;
+import com.android.launcher3.model.data.ItemInfo;
+import com.android.launcher3.uioverrides.PredictedAppIcon;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
 
 /** Handles the Taskbar Education flow. */
 public class TaskbarEduController {
 
+    private static final long WAVE_ANIM_DELAY = 250;
+    private static final long WAVE_ANIM_STAGGER = 50;
+    private static final long WAVE_ANIM_EACH_ICON_DURATION = 633;
+    private static final long WAVE_ANIM_SLOT_MACHINE_DURATION = 1085;
+    // The fraction of each icon's animation at which we reach the top point of the wave.
+    private static final float WAVE_ANIM_FRACTION_TOP = 0.4f;
+    // The fraction of each icon's animation at which we reach the bottom, before overshooting.
+    private static final float WAVE_ANIM_FRACTION_BOTTOM = 0.9f;
+    private static final TimeInterpolator WAVE_ANIM_TO_TOP_INTERPOLATOR = FAST_OUT_SLOW_IN;
+    private static final TimeInterpolator WAVE_ANIM_TO_BOTTOM_INTERPOLATOR = ACCEL_2;
+    private static final TimeInterpolator WAVE_ANIM_OVERSHOOT_INTERPOLATOR = DEACCEL;
+    private static final TimeInterpolator WAVE_ANIM_OVERSHOOT_RETURN_INTERPOLATOR = ACCEL_DEACCEL;
+    private static final float WAVE_ANIM_ICON_SCALE = 1.2f;
+    // How many icons to cycle through in the slot machine (+ the original icon at each end).
+    private static final int WAVE_ANIM_SLOT_MACHINE_NUM_ICONS = 3;
+
     private final TaskbarActivityContext mActivity;
+    private final float mWaveAnimTranslationY;
+    private final float mWaveAnimTranslationYReturnOvershoot;
+
+    // Initialized in init.
+    TaskbarControllers mControllers;
+
     private TaskbarEduView mTaskbarEduView;
+    private Animator mAnim;
 
     public TaskbarEduController(TaskbarActivityContext activity) {
         mActivity = activity;
+
+        final Resources resources = activity.getResources();
+        mWaveAnimTranslationY = resources.getDimension(R.dimen.taskbar_edu_wave_anim_trans_y);
+        mWaveAnimTranslationYReturnOvershoot = resources.getDimension(
+                R.dimen.taskbar_edu_wave_anim_trans_y_return_overshoot);
+    }
+
+    public void init(TaskbarControllers controllers) {
+        mControllers = controllers;
     }
 
     void showEdu() {
@@ -35,6 +91,7 @@
             mTaskbarEduView.init(new TaskbarEduCallbacks());
             mTaskbarEduView.addOnCloseListener(() -> mTaskbarEduView = null);
             mTaskbarEduView.show();
+            startAnim(createWaveAnim());
         });
     }
 
@@ -44,6 +101,90 @@
         }
     }
 
+    /**
+     * Starts the given animation, ending the previous animation first if it's still playing.
+     */
+    private void startAnim(Animator anim) {
+        if (mAnim != null) {
+            mAnim.end();
+        }
+        mAnim = anim;
+        mAnim.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                mAnim = null;
+            }
+        });
+        mAnim.start();
+    }
+
+    /**
+     * Creates a staggered "wave" animation where each icon translates and scales up in succession.
+     */
+    private Animator createWaveAnim() {
+        AnimatorSet waveAnim = new AnimatorSet();
+        View[] icons = mControllers.taskbarViewController.getIconViews();
+        for (int i = 0; i < icons.length; i++) {
+            View icon = icons[i];
+            AnimatorSet iconAnim = new AnimatorSet();
+
+            Keyframe[] scaleKeyframes = new Keyframe[] {
+                    Keyframe.ofFloat(0, 1f),
+                    Keyframe.ofFloat(WAVE_ANIM_FRACTION_TOP, WAVE_ANIM_ICON_SCALE),
+                    Keyframe.ofFloat(WAVE_ANIM_FRACTION_BOTTOM, 1f),
+                    Keyframe.ofFloat(1f, 1f)
+            };
+            scaleKeyframes[1].setInterpolator(WAVE_ANIM_TO_TOP_INTERPOLATOR);
+            scaleKeyframes[2].setInterpolator(WAVE_ANIM_TO_BOTTOM_INTERPOLATOR);
+
+            Keyframe[] translationYKeyframes = new Keyframe[] {
+                    Keyframe.ofFloat(0, 0f),
+                    Keyframe.ofFloat(WAVE_ANIM_FRACTION_TOP, -mWaveAnimTranslationY),
+                    Keyframe.ofFloat(WAVE_ANIM_FRACTION_BOTTOM, 0f),
+                    // Half of the remaining fraction overshoots, then the other half returns to 0.
+                    Keyframe.ofFloat(
+                            WAVE_ANIM_FRACTION_BOTTOM + (1 - WAVE_ANIM_FRACTION_BOTTOM) / 2f,
+                            mWaveAnimTranslationYReturnOvershoot),
+                    Keyframe.ofFloat(1f, 0f)
+            };
+            translationYKeyframes[1].setInterpolator(WAVE_ANIM_TO_TOP_INTERPOLATOR);
+            translationYKeyframes[2].setInterpolator(WAVE_ANIM_TO_BOTTOM_INTERPOLATOR);
+            translationYKeyframes[3].setInterpolator(WAVE_ANIM_OVERSHOOT_INTERPOLATOR);
+            translationYKeyframes[4].setInterpolator(WAVE_ANIM_OVERSHOOT_RETURN_INTERPOLATOR);
+
+            iconAnim.play(ObjectAnimator.ofPropertyValuesHolder(icon,
+                    PropertyValuesHolder.ofKeyframe(SCALE_PROPERTY, scaleKeyframes))
+                    .setDuration(WAVE_ANIM_EACH_ICON_DURATION));
+            iconAnim.play(ObjectAnimator.ofPropertyValuesHolder(icon,
+                    PropertyValuesHolder.ofKeyframe(View.TRANSLATION_Y, translationYKeyframes))
+                    .setDuration(WAVE_ANIM_EACH_ICON_DURATION));
+
+            if (icon instanceof PredictedAppIcon) {
+                // Play slot machine animation through random icons from AllAppsList.
+                PredictedAppIcon predictedAppIcon = (PredictedAppIcon) icon;
+                ItemInfo itemInfo = (ItemInfo) icon.getTag();
+                List<BitmapInfo> iconsToAnimate = mControllers.uiController.getAppIconsForEdu()
+                        .filter(appInfo -> !TextUtils.equals(appInfo.title, itemInfo.title))
+                        .map(appInfo -> appInfo.bitmap)
+                        .filter(bitmap -> !bitmap.isNullOrLowRes())
+                        .collect(Collectors.toList());
+                // Pick n icons at random.
+                Collections.shuffle(iconsToAnimate);
+                if (iconsToAnimate.size() > WAVE_ANIM_SLOT_MACHINE_NUM_ICONS) {
+                    iconsToAnimate = iconsToAnimate.subList(0, WAVE_ANIM_SLOT_MACHINE_NUM_ICONS);
+                }
+                Animator slotMachineAnim = predictedAppIcon.createSlotMachineAnim(iconsToAnimate);
+                if (slotMachineAnim != null) {
+                    iconAnim.play(slotMachineAnim.setDuration(WAVE_ANIM_SLOT_MACHINE_DURATION));
+                }
+            }
+
+            iconAnim.setStartDelay(WAVE_ANIM_STAGGER * i);
+            waveAnim.play(iconAnim);
+        }
+        waveAnim.setStartDelay(WAVE_ANIM_DELAY);
+        return waveAnim;
+    }
 
     /**
      * Callbacks for {@link TaskbarEduView} to interact with its controller.
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarEduView.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarEduView.java
index 9c4e844..8525427 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarEduView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarEduView.java
@@ -15,7 +15,7 @@
  */
 package com.android.launcher3.taskbar;
 
-import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
+import static com.android.launcher3.anim.Interpolators.AGGRESSIVE_EASE;
 
 import android.animation.PropertyValuesHolder;
 import android.content.Context;
@@ -33,6 +33,7 @@
 public class TaskbarEduView extends AbstractSlideInView<TaskbarActivityContext>
         implements Insettable {
 
+    private static final int DEFAULT_OPEN_DURATION = 500;
     private static final int DEFAULT_CLOSE_DURATION = 200;
 
     private final Rect mInsets = new Rect();
@@ -129,8 +130,8 @@
         mIsOpen = true;
         mOpenCloseAnimator.setValues(
                 PropertyValuesHolder.ofFloat(TRANSLATION_SHIFT, TRANSLATION_SHIFT_OPENED));
-        mOpenCloseAnimator.setInterpolator(FAST_OUT_SLOW_IN);
-        mOpenCloseAnimator.start();
+        mOpenCloseAnimator.setInterpolator(AGGRESSIVE_EASE);
+        mOpenCloseAnimator.setDuration(DEFAULT_OPEN_DURATION).start();
     }
 
     void snapToPage(int page) {
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
index 45eabed..4ed83f2 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
@@ -24,6 +24,8 @@
 
 import android.content.Context;
 import android.hardware.display.DisplayManager;
+import android.net.Uri;
+import android.provider.Settings;
 import android.view.Display;
 
 import androidx.annotation.NonNull;
@@ -35,6 +37,7 @@
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.DisplayController.Info;
+import com.android.launcher3.util.SettingsCache;
 import com.android.quickstep.SysUINavigationMode;
 import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.SystemUiProxy;
@@ -46,10 +49,14 @@
 public class TaskbarManager implements DisplayController.DisplayInfoChangeListener,
         SysUINavigationMode.NavigationModeChangeListener {
 
+    private static final Uri USER_SETUP_COMPLETE_URI = Settings.Secure.getUriFor(
+            Settings.Secure.USER_SETUP_COMPLETE);
+
     private final Context mContext;
     private final DisplayController mDisplayController;
     private final SysUINavigationMode mSysUINavigationMode;
     private final TaskbarNavButtonController mNavButtonController;
+    private final SettingsCache.OnChangeListener mUserSetupCompleteListener;
 
     private TaskbarActivityContext mTaskbarActivityContext;
     private BaseQuickstepLauncher mLauncher;
@@ -71,9 +78,13 @@
                 service.getSystemService(DisplayManager.class).getDisplay(DEFAULT_DISPLAY);
         mContext = service.createWindowContext(display, TYPE_APPLICATION_OVERLAY, null);
         mNavButtonController = new TaskbarNavButtonController(service);
+        mUserSetupCompleteListener = isUserSetupComplete -> recreateTaskbar();
 
         mDisplayController.addChangeListener(this);
         mSysUINavigationMode.addModeChangeListener(this);
+        SettingsCache.INSTANCE.get(mContext).register(USER_SETUP_COMPLETE_URI,
+                mUserSetupCompleteListener);
+
         recreateTaskbar();
     }
 
@@ -188,6 +199,8 @@
         destroyExistingTaskbar();
         mDisplayController.removeChangeListener(this);
         mSysUINavigationMode.removeModeChangeListener(this);
+        SettingsCache.INSTANCE.get(mContext).unregister(USER_SETUP_COMPLETE_URI,
+                mUserSetupCompleteListener);
     }
 
     public @Nullable TaskbarActivityContext getCurrentActivityContext() {
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
index df88e02..c0312a0 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
@@ -17,6 +17,10 @@
 
 import android.graphics.Rect;
 
+import com.android.launcher3.model.data.ItemInfoWithIcon;
+
+import java.util.stream.Stream;
+
 /**
  * Base class for providing different taskbar UI
  */
@@ -35,4 +39,8 @@
     protected void updateContentInsets(Rect outContentInsets) { }
 
     protected void onStashedInAppChanged() { }
+
+    public Stream<ItemInfoWithIcon> getAppIconsForEdu() {
+        return Stream.empty();
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
index a4a92f7..5144d9a 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
@@ -90,6 +90,9 @@
         // We layout the icons to be of mIconTouchSize in width and height
         mItemMarginLeftRight = actualMargin - (mIconTouchSize - actualIconSize) / 2;
         mItemPadding = (mIconTouchSize - actualIconSize) / 2;
+
+        // Needed to draw folder leave-behind when opening one.
+        setWillNotDraw(false);
     }
 
     protected void init(TaskbarViewController.TaskbarViewCallbacks callbacks) {
@@ -115,6 +118,7 @@
      */
     protected void updateHotseatItems(ItemInfo[] hotseatItemInfos) {
         int nextViewIndex = 0;
+        int numViewsAnimated = 0;
 
         for (int i = 0; i < hotseatItemInfos.length; i++) {
             ItemInfo hotseatItemInfo = hotseatItemInfos[i];
@@ -170,8 +174,14 @@
             // Apply the Hotseat ItemInfos, or hide the view if there is none for a given index.
             if (hotseatView instanceof BubbleTextView
                     && hotseatItemInfo instanceof WorkspaceItemInfo) {
-                ((BubbleTextView) hotseatView).applyFromWorkspaceItem(
-                        (WorkspaceItemInfo) hotseatItemInfo);
+                BubbleTextView btv = (BubbleTextView) hotseatView;
+                WorkspaceItemInfo workspaceInfo = (WorkspaceItemInfo) hotseatItemInfo;
+
+                boolean animate = btv.shouldAnimateIconChange((WorkspaceItemInfo) hotseatItemInfo);
+                btv.applyFromWorkspaceItem(workspaceInfo, animate, numViewsAnimated);
+                if (animate) {
+                    numViewsAnimated++;
+                }
             }
             setClickAndLongClickListenersForIcon(hotseatView);
             nextViewIndex++;
@@ -256,6 +266,18 @@
         return mIconLayoutBounds;
     }
 
+    /**
+     * Returns the app icons currently shown in the taskbar.
+     */
+    public View[] getIconViews() {
+        final int count = getChildCount();
+        View[] icons = new View[count];
+        for (int i = 0; i < count; i++) {
+            icons[i] = getChildAt(i);
+        }
+        return icons;
+    }
+
     // FolderIconParent implemented methods.
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
index 1882762..40b0e18 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
@@ -44,6 +44,8 @@
     public static final int ALPHA_INDEX_IME = 1;
     public static final int ALPHA_INDEX_KEYGUARD = 2;
     public static final int ALPHA_INDEX_STASH = 3;
+    public static final int ALPHA_INDEX_RECENTS_DISABLED = 4;
+    private static final int NUM_ALPHA_CHANNELS = 5;
 
     private final TaskbarActivityContext mActivity;
     private final TaskbarView mTaskbarView;
@@ -67,7 +69,7 @@
     public TaskbarViewController(TaskbarActivityContext activity, TaskbarView taskbarView) {
         mActivity = activity;
         mTaskbarView = taskbarView;
-        mTaskbarIconAlpha = new MultiValueAlpha(mTaskbarView, 4);
+        mTaskbarIconAlpha = new MultiValueAlpha(mTaskbarView, NUM_ALPHA_CHANNELS);
         mTaskbarIconAlpha.setUpdateVisibility(true);
         mModelCallbacks = new TaskbarModelCallbacks(activity, mTaskbarView);
     }
@@ -101,6 +103,14 @@
     }
 
     /**
+     * Should be called when the recents button is disabled, so we can hide taskbar icons as well.
+     */
+    public void setRecentsButtonDisabled(boolean isDisabled) {
+        // TODO: check TaskbarStashController#supportsStashing(), to stash instead of setting alpha.
+        mTaskbarIconAlpha.getProperty(ALPHA_INDEX_RECENTS_DISABLED).setValue(isDisabled ? 0 : 1);
+    }
+
+    /**
      * Sets OnClickListener and OnLongClickListener for the given view.
      */
     public void setClickAndLongClickListenersForIcon(View icon) {
@@ -111,6 +121,10 @@
         return mTaskbarView.getIconLayoutBounds();
     }
 
+    public View[] getIconViews() {
+        return mTaskbarView.getIconViews();
+    }
+
     public AnimatedFloat getTaskbarIconScaleForStash() {
         return mTaskbarIconScaleForStash;
     }
diff --git a/quickstep/src/com/android/launcher3/taskbar/contextual/RotationButtonController.java b/quickstep/src/com/android/launcher3/taskbar/contextual/RotationButtonController.java
index 99dc282..c776f16 100644
--- a/quickstep/src/com/android/launcher3/taskbar/contextual/RotationButtonController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/contextual/RotationButtonController.java
@@ -149,7 +149,7 @@
 
     public void init() {
         registerListeners();
-        if (mDisplayController.getInfo().id != DEFAULT_DISPLAY) {
+        if (mContext.getDisplay().getDisplayId() != DEFAULT_DISPLAY) {
             // Currently there is no accelerometer sensor on non-default display, disable fixed
             // rotation for non-default display
             onDisable2FlagChanged(StatusBarManager.DISABLE2_ROTATE_SUGGESTIONS);
@@ -168,7 +168,7 @@
         mListenersRegistered = true;
         try {
             WindowManagerGlobal.getWindowManagerService()
-                    .watchRotation(mRotationWatcher, mDisplayController.getInfo().id);
+                    .watchRotation(mRotationWatcher, DEFAULT_DISPLAY);
         } catch (IllegalArgumentException e) {
             mListenersRegistered = false;
             Log.w(TAG, "RegisterListeners for the display failed");
@@ -335,7 +335,7 @@
     }
 
     public void onBehaviorChanged(int displayId, @WindowInsetsController.Behavior int behavior) {
-        if (mDisplayController.getInfo().id != displayId) {
+        if (DEFAULT_DISPLAY != displayId) {
             return;
         }
 
diff --git a/quickstep/src/com/android/launcher3/uioverrides/ApiWrapper.java b/quickstep/src/com/android/launcher3/uioverrides/ApiWrapper.java
index 85943b6..8181a84 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/ApiWrapper.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/ApiWrapper.java
@@ -44,6 +44,13 @@
     }
 
     /**
+     * Returns a unique ID representing the display
+     */
+    public static String getUniqueId(Display display) {
+        return display.getUniqueId();
+    }
+
+    /**
      * Returns the minimum space that should be left empty at the end of hotseat
      */
     public static int getHotseatEndOffset(Context context) {
diff --git a/quickstep/src/com/android/launcher3/uioverrides/PredictedAppIcon.java b/quickstep/src/com/android/launcher3/uioverrides/PredictedAppIcon.java
index d839a36..ee6e8ce 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/PredictedAppIcon.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/PredictedAppIcon.java
@@ -15,6 +15,16 @@
  */
 package com.android.launcher3.uioverrides;
 
+import static com.android.launcher3.anim.Interpolators.ACCEL_DEACCEL;
+
+import android.animation.Animator;
+import android.animation.AnimatorSet;
+import android.animation.ArgbEvaluator;
+import android.animation.Keyframe;
+import android.animation.ObjectAnimator;
+import android.animation.PropertyValuesHolder;
+import android.animation.ValueAnimator;
+import android.annotation.Nullable;
 import android.content.Context;
 import android.graphics.BlurMaskFilter;
 import android.graphics.Canvas;
@@ -23,8 +33,10 @@
 import android.graphics.Paint;
 import android.graphics.Path;
 import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
 import android.os.Process;
 import android.util.AttributeSet;
+import android.util.FloatProperty;
 import android.view.LayoutInflater;
 import android.view.ViewGroup;
 
@@ -35,6 +47,8 @@
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.R;
+import com.android.launcher3.anim.AnimatorListeners;
+import com.android.launcher3.icons.BitmapInfo;
 import com.android.launcher3.icons.GraphicsUtils;
 import com.android.launcher3.icons.IconNormalizer;
 import com.android.launcher3.icons.LauncherIcons;
@@ -45,6 +59,10 @@
 import com.android.launcher3.views.ActivityContext;
 import com.android.launcher3.views.DoubleShadowBubbleTextView;
 
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
 /**
  * A BubbleTextView with a ring around it's drawable
  */
@@ -53,6 +71,9 @@
     private static final int RING_SHADOW_COLOR = 0x99000000;
     private static final float RING_EFFECT_RATIO = 0.095f;
 
+    private static final long ICON_CHANGE_ANIM_DURATION = 360;
+    private static final long ICON_CHANGE_ANIM_STAGGER = 50;
+
     boolean mIsDrawingDot = false;
     private final DeviceProfile mDeviceProfile;
     private final Paint mIconRingPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
@@ -67,6 +88,25 @@
     private int mPlateColor;
     boolean mDrawForDrag = false;
 
+    // Used for the "slot-machine" education animation.
+    private List<Drawable> mSlotMachineIcons;
+    private Animator mSlotMachineAnim;
+    private float mSlotMachineIconTranslationY;
+
+    private static final FloatProperty<PredictedAppIcon> SLOT_MACHINE_TRANSLATION_Y =
+            new FloatProperty<PredictedAppIcon>("slotMachineTranslationY") {
+        @Override
+        public void setValue(PredictedAppIcon predictedAppIcon, float transY) {
+            predictedAppIcon.mSlotMachineIconTranslationY = transY;
+            predictedAppIcon.invalidate();
+        }
+
+        @Override
+        public Float get(PredictedAppIcon predictedAppIcon) {
+            return predictedAppIcon.mSlotMachineIconTranslationY;
+        }
+    };
+
     public PredictedAppIcon(Context context) {
         this(context, null, 0);
     }
@@ -88,15 +128,38 @@
     @Override
     public void onDraw(Canvas canvas) {
         int count = canvas.save();
+        boolean isSlotMachineAnimRunning = mSlotMachineAnim != null;
         if (!mIsPinned) {
             drawEffect(canvas);
+            if (isSlotMachineAnimRunning) {
+                // Clip to to outside of the ring during the slot machine animation.
+                canvas.clipPath(mRingPath);
+            }
             canvas.translate(getWidth() * RING_EFFECT_RATIO, getHeight() * RING_EFFECT_RATIO);
             canvas.scale(1 - 2 * RING_EFFECT_RATIO, 1 - 2 * RING_EFFECT_RATIO);
         }
-        super.onDraw(canvas);
+        if (isSlotMachineAnimRunning) {
+            drawSlotMachineIcons(canvas);
+        } else {
+            super.onDraw(canvas);
+        }
         canvas.restoreToCount(count);
     }
 
+    private void drawSlotMachineIcons(Canvas canvas) {
+        canvas.translate((getWidth() - getIconSize()) / 2f,
+                (getHeight() - getIconSize()) / 2f + mSlotMachineIconTranslationY);
+        for (Drawable icon : mSlotMachineIcons) {
+            icon.setBounds(0, 0, getIconSize(), getIconSize());
+            icon.draw(canvas);
+            canvas.translate(0, getSlotMachineIconPlusSpacingSize());
+        }
+    }
+
+    private float getSlotMachineIconPlusSpacingSize() {
+        return getIconSize() + getOutlineOffsetY();
+    }
+
     @Override
     protected void drawDotIfNecessary(Canvas canvas) {
         mIsDrawingDot = true;
@@ -109,9 +172,17 @@
     }
 
     @Override
-    public void applyFromWorkspaceItem(WorkspaceItemInfo info) {
-        super.applyFromWorkspaceItem(info);
-        mPlateColor = ColorUtils.setAlphaComponent(mDotParams.color, 200);
+    public void applyFromWorkspaceItem(WorkspaceItemInfo info, boolean animate, int staggerIndex) {
+        // Create the slot machine animation first, since it uses the current icon to start.
+        Animator slotMachineAnim = animate
+                ? createSlotMachineAnim(Collections.singletonList(info.bitmap), false)
+                : null;
+        super.applyFromWorkspaceItem(info, animate, staggerIndex);
+        int oldPlateColor = mPlateColor;
+        int newPlateColor = ColorUtils.setAlphaComponent(mDotParams.color, 200);
+        if (!animate) {
+            mPlateColor = newPlateColor;
+        }
         if (mIsPinned) {
             setContentDescription(info.contentDescription);
         } else {
@@ -119,6 +190,76 @@
                     getContext().getString(R.string.hotseat_prediction_content_description,
                             info.contentDescription));
         }
+
+        if (animate) {
+            ValueAnimator plateColorAnim = ValueAnimator.ofObject(new ArgbEvaluator(),
+                    oldPlateColor, newPlateColor);
+            plateColorAnim.addUpdateListener(valueAnimator -> {
+                mPlateColor = (int) valueAnimator.getAnimatedValue();
+                invalidate();
+            });
+            AnimatorSet changeIconAnim = new AnimatorSet();
+            if (slotMachineAnim != null) {
+                changeIconAnim.play(slotMachineAnim);
+            }
+            changeIconAnim.play(plateColorAnim);
+            changeIconAnim.setStartDelay(staggerIndex * ICON_CHANGE_ANIM_STAGGER);
+            changeIconAnim.setDuration(ICON_CHANGE_ANIM_DURATION).start();
+        }
+    }
+
+    /**
+     * Returns an Animator that translates the given icons in a "slot-machine" fashion, beginning
+     * and ending with the original icon.
+     */
+    public @Nullable Animator createSlotMachineAnim(List<BitmapInfo> iconsToAnimate) {
+        return createSlotMachineAnim(iconsToAnimate, true);
+    }
+
+    /**
+     * Returns an Animator that translates the given icons in a "slot-machine" fashion, beginning
+     * with the original icon, then cycling through the given icons, optionally ending back with
+     * the original icon.
+     * @param endWithOriginalIcon Whether we should land back on the icon we started with, rather
+     *                            than the last item in iconsToAnimate.
+     */
+    public @Nullable Animator createSlotMachineAnim(List<BitmapInfo> iconsToAnimate,
+            boolean endWithOriginalIcon) {
+        if (mIsPinned || iconsToAnimate == null || iconsToAnimate.isEmpty()) {
+            return null;
+        }
+        if (mSlotMachineAnim != null) {
+            mSlotMachineAnim.end();
+        }
+
+        // Bookend the other animating icons with the original icon on both ends.
+        mSlotMachineIcons = new ArrayList<>(iconsToAnimate.size() + 2);
+        mSlotMachineIcons.add(getIcon());
+        iconsToAnimate.stream()
+                .map(iconInfo -> iconInfo.newThemedIcon(mContext))
+                .forEach(mSlotMachineIcons::add);
+        if (endWithOriginalIcon) {
+            mSlotMachineIcons.add(getIcon());
+        }
+
+        float finalTrans = -getSlotMachineIconPlusSpacingSize() * (mSlotMachineIcons.size() - 1);
+        Keyframe[] keyframes = new Keyframe[] {
+                Keyframe.ofFloat(0f, 0f),
+                Keyframe.ofFloat(0.82f, finalTrans - getOutlineOffsetY() / 2f), // Overshoot
+                Keyframe.ofFloat(1f, finalTrans) // Ease back into the final position
+        };
+        keyframes[1].setInterpolator(ACCEL_DEACCEL);
+        keyframes[2].setInterpolator(ACCEL_DEACCEL);
+
+        mSlotMachineAnim = ObjectAnimator.ofPropertyValuesHolder(this,
+                PropertyValuesHolder.ofKeyframe(SLOT_MACHINE_TRANSLATION_Y, keyframes));
+        mSlotMachineAnim.addListener(AnimatorListeners.forEndCallback(() -> {
+            mSlotMachineIcons = null;
+            mSlotMachineAnim = null;
+            mSlotMachineIconTranslationY = 0;
+            invalidate();
+        }));
+        return mSlotMachineAnim;
     }
 
     /**
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/SplitScreenSelectState.java b/quickstep/src/com/android/launcher3/uioverrides/states/SplitScreenSelectState.java
index 1882a0c..9fc0450 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/SplitScreenSelectState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/SplitScreenSelectState.java
@@ -43,8 +43,12 @@
     @Override
     public float getSplitSelectTranslation(Launcher launcher) {
         RecentsView recentsView = launcher.getOverviewPanel();
-        int splitPosition = recentsView.getSplitPlaceholder()
-                .getActiveSplitPositionOption().mStagePosition;
+//<<<<<<< HEAD
+//        int splitPosition = recentsView.getSplitPlaceholder()
+//                .getActiveSplitPositionOption().stagePosition;
+//=======
+        int splitPosition = recentsView.getSplitPlaceholder().getActiveSplitStagePosition();
+//>>>>>>> f6769c8532 (Add Split button in OverviewActions)
         if (!recentsView.shouldShiftThumbnailsForSplitSelect(splitPosition)) {
             return 0f;
         }
diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index 46d5857..6e90a3a 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -1194,9 +1194,6 @@
     @UiThread
     private void animateToProgressInternal(float start, float end, long duration,
             Interpolator interpolator, GestureEndTarget target, PointF velocityPxPerMs) {
-        if (Utilities.IS_RUNNING_IN_TEST_HARNESS) {
-            Log.d(TestProtocol.L3_SWIPE_TO_HOME, "7");
-        }
         maybeUpdateRecentsAttachedState();
 
         // If we are transitioning to launcher, then listen for the activity to be restarted while
@@ -1219,6 +1216,9 @@
             }
         }
 
+        if (Utilities.IS_RUNNING_IN_TEST_HARNESS) {
+            Log.d(TestProtocol.L3_SWIPE_TO_HOME, "7, end target=" + mGestureState.getEndTarget());
+        }
         if (mGestureState.getEndTarget() == HOME) {
             getOrientationHandler().adjustFloatingIconStartVelocity(velocityPxPerMs);
             final RemoteAnimationTargetCompat runningTaskTarget = mRecentsAnimationTargets != null
@@ -1233,6 +1233,9 @@
                     && runningTaskTarget.allowEnterPip
                     && runningTaskTarget.taskInfo.pictureInPictureParams != null
                     && runningTaskTarget.taskInfo.pictureInPictureParams.isAutoEnterEnabled();
+            if (Utilities.IS_RUNNING_IN_TEST_HARNESS) {
+                Log.d(TestProtocol.L3_SWIPE_TO_HOME, "8, class=" + getClass().getSimpleName());
+            }
             HomeAnimationFactory homeAnimFactory =
                     createHomeAnimationFactory(cookies, duration, isTranslucent, appCanEnterPip,
                             runningTaskTarget);
diff --git a/quickstep/src/com/android/quickstep/RecentsAnimationDeviceState.java b/quickstep/src/com/android/quickstep/RecentsAnimationDeviceState.java
index 444d77a..8a9bf7c 100644
--- a/quickstep/src/com/android/quickstep/RecentsAnimationDeviceState.java
+++ b/quickstep/src/com/android/quickstep/RecentsAnimationDeviceState.java
@@ -18,6 +18,7 @@
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_UNDEFINED;
 import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED;
 import static android.content.Intent.ACTION_USER_UNLOCKED;
+import static android.view.Display.DEFAULT_DISPLAY;
 
 import static com.android.launcher3.util.DisplayController.CHANGE_ALL;
 import static com.android.launcher3.util.DisplayController.CHANGE_ROTATION;
@@ -59,7 +60,6 @@
 import android.provider.Settings;
 import android.text.TextUtils;
 import android.util.DisplayMetrics;
-import android.util.Log;
 import android.view.MotionEvent;
 import android.view.Surface;
 
@@ -67,7 +67,6 @@
 
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.DisplayController.DisplayInfoChangeListener;
 import com.android.launcher3.util.DisplayController.Info;
@@ -147,7 +146,7 @@
         mContext = context;
         mDisplayController = DisplayController.INSTANCE.get(context);
         mSysUiNavMode = SysUINavigationMode.INSTANCE.get(context);
-        mDisplayId = mDisplayController.getInfo().id;
+        mDisplayId = DEFAULT_DISPLAY;
         mIsOneHandedModeSupported = SystemProperties.getBoolean(SUPPORT_ONE_HANDED_MODE, false);
         runOnDestroy(() -> mDisplayController.removeChangeListener(this));
         mRotationTouchHelper = RotationTouchHelper.INSTANCE.get(context);
diff --git a/quickstep/src/com/android/quickstep/RotationTouchHelper.java b/quickstep/src/com/android/quickstep/RotationTouchHelper.java
index 678b176..2a422cc 100644
--- a/quickstep/src/com/android/quickstep/RotationTouchHelper.java
+++ b/quickstep/src/com/android/quickstep/RotationTouchHelper.java
@@ -15,6 +15,7 @@
  */
 package com.android.quickstep;
 
+import static android.view.Display.DEFAULT_DISPLAY;
 import static android.view.Surface.ROTATION_0;
 
 import static com.android.launcher3.util.DisplayController.CHANGE_ACTIVE_SCREEN;
@@ -25,7 +26,6 @@
 
 import android.content.Context;
 import android.content.res.Resources;
-import android.util.Log;
 import android.view.MotionEvent;
 import android.view.OrientationEventListener;
 
@@ -35,7 +35,6 @@
 import com.android.launcher3.util.DisplayController.Info;
 import com.android.launcher3.util.MainThreadInitializedObject;
 import com.android.quickstep.util.RecentsOrientedState;
-import com.android.systemui.shared.system.ActivityManagerWrapper;
 import com.android.systemui.shared.system.QuickStepContract;
 import com.android.systemui.shared.system.TaskStackChangeListener;
 import com.android.systemui.shared.system.TaskStackChangeListeners;
@@ -146,7 +145,7 @@
         mDisplayController = DisplayController.INSTANCE.get(mContext);
         Resources resources = mContext.getResources();
         mSysUiNavMode = SysUINavigationMode.INSTANCE.get(mContext);
-        mDisplayId = mDisplayController.getInfo().id;
+        mDisplayId = DEFAULT_DISPLAY;
 
         mOrientationTouchTransformer = new OrientationTouchTransformer(resources, mMode,
                 () -> QuickStepContract.getWindowCornerRadius(resources));
diff --git a/quickstep/src/com/android/quickstep/TaskOverlayFactory.java b/quickstep/src/com/android/quickstep/TaskOverlayFactory.java
index f49c9b0..eb5c43f 100644
--- a/quickstep/src/com/android/quickstep/TaskOverlayFactory.java
+++ b/quickstep/src/com/android/quickstep/TaskOverlayFactory.java
@@ -218,6 +218,11 @@
             }
         }
 
+        private void enterSplitSelect() {
+            RecentsView overviewPanel = mThumbnailView.getTaskView().getRecentsView();
+            overviewPanel.initiateSplitSelect(mThumbnailView.getTaskView());
+        }
+
         /**
          * Called when the overlay is no longer used.
          */
@@ -323,6 +328,10 @@
             public void onScreenshot() {
                 endLiveTileMode(() -> saveScreenshot(mTask));
             }
+
+            public void onSplit() {
+                endLiveTileMode(TaskOverlay.this::enterSplitSelect);
+            }
         }
     }
 
@@ -336,5 +345,8 @@
 
         /** User has indicated they want to screenshot the current task. */
         void onScreenshot();
+
+        /** User wants to start split screen with current app. */
+        void onSplit();
     }
 }
diff --git a/quickstep/src/com/android/quickstep/TaskShortcutFactory.java b/quickstep/src/com/android/quickstep/TaskShortcutFactory.java
index a078bf3..559125e 100644
--- a/quickstep/src/com/android/quickstep/TaskShortcutFactory.java
+++ b/quickstep/src/com/android/quickstep/TaskShortcutFactory.java
@@ -100,7 +100,7 @@
         private SplitPositionOption mSplitPositionOption;
         public SplitSelectSystemShortcut(BaseDraggingActivity target, TaskView taskView,
                 SplitPositionOption option) {
-            super(option.mIconResId, option.mTextResId, target, taskView.getItemInfo());
+            super(option.iconResId, option.textResId, target, taskView.getItemInfo());
             mTaskView = taskView;
             mSplitPositionOption = option;
             setEnabled(taskView.getRecentsView().getTaskViewCount() > 1);
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
index 16c925a..eb77ac0 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
@@ -32,12 +32,11 @@
 import android.view.SurfaceControl;
 import android.window.TransitionInfo;
 
-import androidx.annotation.Nullable;
-
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.InsettableFrameLayout;
 import com.android.launcher3.R;
-import com.android.launcher3.util.SplitConfigurationOptions.SplitPositionOption;
+import com.android.launcher3.util.SplitConfigurationOptions;
+import com.android.launcher3.util.SplitConfigurationOptions.StagePosition;
 import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.TaskAnimationManager;
 import com.android.quickstep.TaskViewUtils;
@@ -57,7 +56,7 @@
     private final SystemUiProxy mSystemUiProxy;
     private TaskView mInitialTaskView;
     private TaskView mSecondTaskView;
-    private SplitPositionOption mInitialPosition;
+    private @StagePosition int mStagePosition;
     private Rect mInitialBounds;
     private final Handler mHandler;
 
@@ -69,10 +68,10 @@
     /**
      * To be called after first task selected
      */
-    public void setInitialTaskSelect(TaskView taskView, SplitPositionOption positionOption,
+    public void setInitialTaskSelect(TaskView taskView, @StagePosition int stagePosition,
             Rect initialBounds) {
         mInitialTaskView = taskView;
-        mInitialPosition = positionOption;
+        mStagePosition = stagePosition;
         mInitialBounds = initialBounds;
     }
 
@@ -83,7 +82,11 @@
         mSecondTaskView = taskView;
         // Assume initial task is for top/left part of screen
 
-        final int[] taskIds = mInitialPosition.mStagePosition == STAGE_POSITION_TOP_OR_LEFT
+//<<<<<<< HEAD
+//        final int[] taskIds = mInitialPosition.stagePosition == STAGE_POSITION_TOP_OR_LEFT
+//=======
+        final int[] taskIds = mStagePosition == STAGE_POSITION_TOP_OR_LEFT
+//>>>>>>> f6769c8532 (Add Split button in OverviewActions)
                 ? new int[]{mInitialTaskView.getTask().key.id, taskView.getTask().key.id}
                 : new int[]{taskView.getTask().key.id, mInitialTaskView.getTask().key.id};
         if (TaskAnimationManager.ENABLE_SHELL_TRANSITIONS) {
@@ -113,7 +116,11 @@
             DeviceProfile deviceProfile) {
         InsettableFrameLayout.LayoutParams params =
                 new InsettableFrameLayout.LayoutParams(MATCH_PARENT, MATCH_PARENT);
-        boolean topLeftPosition = mInitialPosition.mStagePosition == STAGE_POSITION_TOP_OR_LEFT;
+//<<<<<<< HEAD
+//        boolean topLeftPosition = mInitialPosition.stagePosition == STAGE_POSITION_TOP_OR_LEFT;
+//=======
+        boolean topLeftPosition = mStagePosition == STAGE_POSITION_TOP_OR_LEFT;
+//>>>>>>> f6769c8532 (Add Split button in OverviewActions)
         if (deviceProfile.isLandscape) {
             params.width = (int) resources.getDimension(R.dimen.split_placeholder_size);
             params.gravity = topLeftPosition ? Gravity.START : Gravity.END;
@@ -125,9 +132,8 @@
         return params;
     }
 
-    @Nullable
-    public SplitPositionOption getActiveSplitPositionOption() {
-        return mInitialPosition;
+    public @StagePosition int getActiveSplitStagePosition() {
+        return mStagePosition;
     }
 
     /**
@@ -189,7 +195,7 @@
     public void resetState() {
         mInitialTaskView = null;
         mSecondTaskView = null;
-        mInitialPosition = null;
+        mStagePosition = SplitConfigurationOptions.STAGE_POSITION_UNDEFINED;
         mInitialBounds = null;
     }
 
diff --git a/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java b/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
index 760f665..9960fd3 100644
--- a/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
+++ b/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
@@ -176,7 +176,7 @@
             mStagePosition = STAGE_POSITION_UNDEFINED;
             return;
         }
-        mStagePosition = mThumbnailPosition.equals(splitInfo.mLeftTopBounds) ?
+        mStagePosition = mThumbnailPosition.equals(splitInfo.leftTopBounds) ?
                 STAGE_POSITION_TOP_OR_LEFT :
                 STAGE_POSITION_BOTTOM_OR_RIGHT;
     }
diff --git a/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java b/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
index 6b2d19c..ddb1fca 100644
--- a/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/LauncherRecentsView.java
@@ -245,8 +245,8 @@
 
     @Override
     public void initiateSplitSelect(TaskView taskView,
-            SplitConfigurationOptions.SplitPositionOption splitPositionOption) {
-        super.initiateSplitSelect(taskView, splitPositionOption);
+            @SplitConfigurationOptions.StagePosition int stagePosition) {
+        super.initiateSplitSelect(taskView, stagePosition);
         mActivity.getStateManager().goToState(LauncherState.OVERVIEW_SPLIT_SELECT);
     }
 
diff --git a/quickstep/src/com/android/quickstep/views/OverviewActionsView.java b/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
index a2d2179..5d1c202 100644
--- a/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
+++ b/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
@@ -79,6 +79,7 @@
     private static final int INDEX_SCROLL_ALPHA = 4;
 
     private final MultiValueAlpha mMultiValueAlpha;
+    private View mSplitButton;
 
     @ActionsHiddenFlags
     private int mHiddenFlags;
@@ -110,6 +111,8 @@
         View share = findViewById(R.id.action_share);
         share.setOnClickListener(this);
         findViewById(R.id.action_screenshot).setOnClickListener(this);
+        mSplitButton = findViewById(R.id.action_split);
+        mSplitButton.setOnClickListener(this);
         if (ENABLE_OVERVIEW_SHARE.get()) {
             share.setVisibility(VISIBLE);
             findViewById(R.id.oav_three_button_space).setVisibility(VISIBLE);
@@ -135,6 +138,8 @@
             mCallbacks.onShare();
         } else if (id == R.id.action_screenshot) {
             mCallbacks.onScreenshot();
+        } else if (id == R.id.action_split) {
+            mCallbacks.onSplit();
         }
     }
 
@@ -218,6 +223,16 @@
         mDp = dp;
         updateVerticalMargin(SysUINavigationMode.getMode(getContext()));
         requestLayout();
+        setSplitButtonVisible(mDp.isTablet);
+    }
+
+    public void setSplitButtonVisible(boolean visible) {
+        if (mSplitButton == null) {
+            return;
+        }
+
+        mSplitButton.setVisibility(visible ? VISIBLE : GONE);
+        findViewById(R.id.action_split_space).setVisibility(visible ? VISIBLE : GONE);
     }
 
     /** Get the top margin associated with the action buttons in Overview. */
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index ad41321..646312e 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -133,7 +133,7 @@
 import com.android.launcher3.util.ResourceBasedOverride.Overrides;
 import com.android.launcher3.util.RunnableList;
 import com.android.launcher3.util.SplitConfigurationOptions;
-import com.android.launcher3.util.SplitConfigurationOptions.SplitPositionOption;
+import com.android.launcher3.util.SplitConfigurationOptions.StagePosition;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.util.TranslateEdgeEffect;
 import com.android.launcher3.util.ViewPool;
@@ -2572,8 +2572,8 @@
     private void createInitialSplitSelectAnimation(PendingAnimation anim) {
         float placeholderHeight = getResources().getDimension(R.dimen.split_placeholder_size);
         mOrientationHandler.getInitialSplitPlaceholderBounds((int) placeholderHeight,
-                        mActivity.getDeviceProfile(),
-                mSplitSelectStateController.getActiveSplitPositionOption(), mTempRect);
+                mActivity.getDeviceProfile(),
+                mSplitSelectStateController.getActiveSplitStagePosition(), mTempRect);
 
         RectF startingTaskRect = new RectF();
         mSplitHiddenTaskView.setVisibility(INVISIBLE);
@@ -2582,6 +2582,7 @@
         mFirstFloatingTaskView.setAlpha(1);
         mFirstFloatingTaskView.addAnimation(anim, startingTaskRect,
                 mTempRect, mSplitHiddenTaskView, true /*fadeWithThumbnail*/);
+        anim.addEndListener(aBoolean -> mActionsView.setSplitButtonVisible(false));
     }
 
     /**
@@ -3014,8 +3015,7 @@
      * @return {@code true} if one of the task thumbnails would intersect/overlap with the
      *         {@link #mFirstFloatingTaskView}
      */
-    public boolean shouldShiftThumbnailsForSplitSelect(@SplitConfigurationOptions.StagePosition
-            int stagePosition) {
+    public boolean shouldShiftThumbnailsForSplitSelect(@StagePosition int stagePosition) {
         if (!mActivity.getDeviceProfile().isTablet) {
             // Never enough space on phones
             return true;
@@ -3547,12 +3547,17 @@
         }
     }
 
-    public void initiateSplitSelect(TaskView taskView, SplitPositionOption splitPositionOption) {
+    public void initiateSplitSelect(TaskView taskView) {
+        int defaultSplitPosition = mOrientationHandler
+                .getDefaultSplitPosition(mActivity.getDeviceProfile());
+        initiateSplitSelect(taskView, defaultSplitPosition);
+    }
+
+    public void initiateSplitSelect(TaskView taskView, @StagePosition int stagePosition) {
         mSplitHiddenTaskView = taskView;
         Rect initialBounds = new Rect(taskView.getLeft(), taskView.getTop(), taskView.getRight(),
                 taskView.getBottom());
-        mSplitSelectStateController.setInitialTaskSelect(taskView,
-                splitPositionOption, initialBounds);
+        mSplitSelectStateController.setInitialTaskSelect(taskView, stagePosition, initialBounds);
         mSplitHiddenTaskViewIndex = indexOfChild(taskView);
         if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
             finishRecentsAnimation(true, null);
@@ -3578,7 +3583,7 @@
                 .getDimensionPixelSize(R.dimen.multi_window_task_divider_size) / 2;
         mOrientationHandler.getFinalSplitPlaceholderBounds(halfDividerSize,
                 mActivity.getDeviceProfile(),
-                mSplitSelectStateController.getActiveSplitPositionOption(), firstTaskEndingBounds,
+                mSplitSelectStateController.getActiveSplitStagePosition(), firstTaskEndingBounds,
                 secondTaskEndingBounds);
 
         mFirstFloatingTaskView.getBoundsOnScreen(firstTaskStartingBounds);
@@ -3603,7 +3608,7 @@
 
     public PendingAnimation cancelSplitSelect(boolean animate) {
         SplitSelectStateController splitController = mSplitSelectStateController;
-        SplitPositionOption splitOption = splitController.getActiveSplitPositionOption();
+        @StagePosition int stagePosition = splitController.getActiveSplitStagePosition();
         Rect initialBounds = splitController.getInitialBounds();
         splitController.resetState();
         int duration = mActivity.getStateManager().getState().getTransitionDuration(getContext());
@@ -3629,7 +3634,7 @@
             if (child == mSplitHiddenTaskView) {
                 TaskView taskView = (TaskView) child;
 
-                int dir = mOrientationHandler.getSplitTaskViewDismissDirection(splitOption,
+                int dir = mOrientationHandler.getSplitTaskViewDismissDirection(stagePosition,
                         mActivity.getDeviceProfile());
                 FloatProperty<TaskView> dismissingTaskViewTranslate;
                 Rect hiddenBounds = new Rect(taskView.getLeft(), taskView.getTop(),
@@ -3701,10 +3706,10 @@
         return pendingAnim;
     }
 
+    /** TODO(b/181707736) More gracefully handle exiting split selection state */
     private void resetFromSplitSelectionState() {
         mSplitHiddenTaskView.setTranslationY(0);
         if (!showAsGrid()) {
-            // TODO(b/186800707)
             int pageToSnapTo = mCurrentPage;
             if (mSplitHiddenTaskViewIndex <= pageToSnapTo) {
                 pageToSnapTo += 1;
@@ -3728,6 +3733,7 @@
             mSecondSplitHiddenTaskView.setVisibility(VISIBLE);
             mSecondSplitHiddenTaskView = null;
         }
+        mActionsView.setSplitButtonVisible(true);
     }
 
     private void updateDeadZoneRects() {
@@ -4090,6 +4096,8 @@
 
     public void finishRecentsAnimation(boolean toRecents, boolean shouldPip,
             Runnable onFinishComplete) {
+        // TODO(b/197232424#comment#10) Move this back into onRecentsAnimationComplete(). Maybe?
+        mRemoteTargetHandles = null;
         if (!toRecents && ENABLE_QUICKSTEP_LIVE_TILE.get()) {
             // Reset the minimized state since we force-toggled the minimized state when entering
             // overview, but never actually finished the recents animation.  This is a catch all for
@@ -4137,7 +4145,6 @@
         setCurrentTask(-1);
         mRecentsAnimationController = null;
         executeSideTaskLaunchCallback();
-        mRemoteTargetHandles = null;
     }
 
     public void setDisallowScrollToClearAll(boolean disallowScrollToClearAll) {
diff --git a/quickstep/src/com/android/quickstep/views/TaskView.java b/quickstep/src/com/android/quickstep/views/TaskView.java
index 5986649..bfe6ca4 100644
--- a/quickstep/src/com/android/quickstep/views/TaskView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskView.java
@@ -1514,7 +1514,7 @@
 
     public void initiateSplitSelect(SplitPositionOption splitPositionOption) {
         AbstractFloatingView.closeOpenViews(mActivity, false, TYPE_TASK_MENU);
-        getRecentsView().initiateSplitSelect(this, splitPositionOption);
+        getRecentsView().initiateSplitSelect(this, splitPositionOption.stagePosition);
     }
 
     /**
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index 353e52b..02ec5e8 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -256,9 +256,27 @@
 
     @UiThread
     public void applyFromWorkspaceItem(WorkspaceItemInfo info) {
+        applyFromWorkspaceItem(info, /* animate = */ false, /* staggerIndex = */ 0);
+    }
+
+    @UiThread
+    public void applyFromWorkspaceItem(WorkspaceItemInfo info, boolean animate, int staggerIndex) {
         applyFromWorkspaceItem(info, false);
     }
 
+    /**
+     * Returns whether the newInfo differs from the current getTag().
+     */
+    public boolean shouldAnimateIconChange(WorkspaceItemInfo newInfo) {
+        WorkspaceItemInfo oldInfo = getTag() instanceof WorkspaceItemInfo
+                ? (WorkspaceItemInfo) getTag()
+                : null;
+        boolean changedIcons = oldInfo != null && oldInfo.getTargetComponent() != null
+                && newInfo.getTargetComponent() != null
+                && !oldInfo.getTargetComponent().equals(newInfo.getTargetComponent());
+        return changedIcons && isShown();
+    }
+
     @Override
     public void setAccessibilityDelegate(AccessibilityDelegate delegate) {
         if (delegate instanceof LauncherAccessibilityDelegate) {
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index 2e14823..a2189c9 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -57,6 +57,7 @@
 
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
@@ -158,38 +159,6 @@
     @VisibleForTesting
     public InvariantDeviceProfile() {}
 
-    private InvariantDeviceProfile(InvariantDeviceProfile p) {
-        numRows = p.numRows;
-        numColumns = p.numColumns;
-        numFolderRows = p.numFolderRows;
-        numFolderColumns = p.numFolderColumns;
-        iconSize = p.iconSize;
-        landscapeIconSize = p.landscapeIconSize;
-        twoPanelPortraitIconSize = p.twoPanelPortraitIconSize;
-        twoPanelLandscapeIconSize = p.twoPanelLandscapeIconSize;
-        iconBitmapSize = p.iconBitmapSize;
-        iconTextSize = p.iconTextSize;
-        landscapeIconTextSize = p.landscapeIconTextSize;
-        twoPanelPortraitIconTextSize = p.twoPanelPortraitIconTextSize;
-        twoPanelLandscapeIconTextSize = p.twoPanelLandscapeIconTextSize;
-        numShownHotseatIcons = p.numShownHotseatIcons;
-        numDatabaseHotseatIcons = p.numDatabaseHotseatIcons;
-        numAllAppsColumns = p.numAllAppsColumns;
-        numDatabaseAllAppsColumns = p.numDatabaseAllAppsColumns;
-        isScalable = p.isScalable;
-        devicePaddingId = p.devicePaddingId;
-        minCellHeight = p.minCellHeight;
-        minCellWidth = p.minCellWidth;
-        borderSpacing = p.borderSpacing;
-        dbFile = p.dbFile;
-        allAppsIconSize = p.allAppsIconSize;
-        allAppsIconTextSize = p.allAppsIconTextSize;
-        defaultLayoutId = p.defaultLayoutId;
-        demoModeLayoutId = p.demoModeLayoutId;
-        mExtraAttrs = p.mExtraAttrs;
-        devicePaddings = p.devicePaddings;
-    }
-
     @TargetApi(23)
     private InvariantDeviceProfile(Context context) {
         String gridName = getCurrentGridName(context);
@@ -236,13 +205,13 @@
 
         DisplayOption result = new DisplayOption(defaultDisplayOption.grid)
                 .add(myDisplayOption);
-        result.iconSize = defaultDisplayOption.iconSize;
-        result.landscapeIconSize = defaultDisplayOption.landscapeIconSize;
-        if (defaultDisplayOption.allAppsIconSize < myDisplayOption.allAppsIconSize) {
-            result.allAppsIconSize = defaultDisplayOption.allAppsIconSize;
-        } else {
-            result.allAppsIconSize = myDisplayOption.allAppsIconSize;
+        result.iconSizes[DisplayOption.INDEX_DEFAULT] =
+                defaultDisplayOption.iconSizes[DisplayOption.INDEX_DEFAULT];
+        for (int i = 1; i < DisplayOption.COUNT_TOTAL; i++) {
+            result.iconSizes[i] = Math.min(
+                    defaultDisplayOption.iconSizes[i], myDisplayOption.iconSizes[i]);
         }
+
         result.minCellHeight = defaultDisplayOption.minCellHeight;
         result.minCellWidth = defaultDisplayOption.minCellWidth;
         result.borderSpacing = defaultDisplayOption.borderSpacing;
@@ -288,17 +257,21 @@
 
         mExtraAttrs = closestProfile.extraAttrs;
 
-        iconSize = displayOption.iconSize;
-        landscapeIconSize = displayOption.landscapeIconSize;
-        twoPanelPortraitIconSize = displayOption.twoPanelPortraitIconSize;
-        twoPanelLandscapeIconSize = displayOption.twoPanelLandscapeIconSize;
+        iconSize = displayOption.iconSizes[DisplayOption.INDEX_DEFAULT];
+        landscapeIconSize = displayOption.iconSizes[DisplayOption.INDEX_LANDSCAPE];
+        twoPanelPortraitIconSize = displayOption.iconSizes[DisplayOption.INDEX_TWO_PANEL_PORTRAIT];
+        twoPanelLandscapeIconSize =
+                displayOption.iconSizes[DisplayOption.INDEX_TWO_PANEL_LANDSCAPE];
         iconBitmapSize = ResourceUtils.pxFromDp(iconSize, metrics);
-        iconTextSize = displayOption.iconTextSize;
-        landscapeIconTextSize = displayOption.landscapeIconTextSize;
-        twoPanelPortraitIconTextSize = displayOption.twoPanelPortraitIconTextSize;
-        twoPanelLandscapeIconTextSize = displayOption.twoPanelLandscapeIconTextSize;
         fillResIconDpi = getLauncherIconDensity(iconBitmapSize);
 
+        iconTextSize = displayOption.textSizes[DisplayOption.INDEX_DEFAULT];
+        landscapeIconTextSize = displayOption.textSizes[DisplayOption.INDEX_LANDSCAPE];
+        twoPanelPortraitIconTextSize =
+                displayOption.textSizes[DisplayOption.INDEX_TWO_PANEL_PORTRAIT];
+        twoPanelLandscapeIconTextSize =
+                displayOption.textSizes[DisplayOption.INDEX_TWO_PANEL_LANDSCAPE];
+
         minCellHeight = displayOption.minCellHeight;
         minCellWidth = displayOption.minCellWidth;
         borderSpacing = displayOption.borderSpacing;
@@ -312,8 +285,8 @@
                 ? closestProfile.numDatabaseAllAppsColumns : closestProfile.numAllAppsColumns;
 
         if (Utilities.isGridOptionsEnabled(context)) {
-            allAppsIconSize = displayOption.allAppsIconSize;
-            allAppsIconTextSize = displayOption.allAppsIconTextSize;
+            allAppsIconSize = displayOption.iconSizes[DisplayOption.INDEX_ALL_APPS];
+            allAppsIconTextSize = displayOption.textSizes[DisplayOption.INDEX_ALL_APPS];
         } else {
             allAppsIconSize = iconSize;
             allAppsIconTextSize = iconTextSize;
@@ -374,13 +347,22 @@
         MAIN_EXECUTOR.execute(() -> onConfigChanged(appContext));
     }
 
+    private Object[] toModelState() {
+        return new Object[] {
+                numColumns, numRows, numDatabaseHotseatIcons, iconBitmapSize, fillResIconDpi,
+                numDatabaseAllAppsColumns, dbFile};
+    }
+
     private void onConfigChanged(Context context) {
+        Object[] oldState = toModelState();
+
         // Re-init grid
         String gridName = getCurrentGridName(context);
         initGrid(context, gridName);
 
+        boolean modelPropsChanged = !Arrays.equals(oldState, toModelState());
         for (OnIDPChangeListener listener : mChangeListeners) {
-            listener.onIdpChanged(this);
+            listener.onIdpChanged(modelPropsChanged);
         }
     }
 
@@ -533,22 +515,33 @@
                 Float.compare(dist(width, height, a.minWidthDps, a.minHeightDps),
                         dist(width, height, b.minWidthDps, b.minHeightDps)));
 
-        GridOption closestOption = points.get(0).grid;
+        DisplayOption closestPoint = points.get(0);
+        GridOption closestOption = closestPoint.grid;
         float weights = 0;
 
-        DisplayOption p = points.get(0);
-        if (dist(width, height, p.minWidthDps, p.minHeightDps) == 0) {
-            return p;
+        if (dist(width, height, closestPoint.minWidthDps, closestPoint.minHeightDps) == 0) {
+            return closestPoint;
         }
 
         DisplayOption out = new DisplayOption(closestOption);
         for (int i = 0; i < points.size() && i < KNEARESTNEIGHBOR; ++i) {
-            p = points.get(i);
+            DisplayOption p = points.get(i);
             float w = weight(width, height, p.minWidthDps, p.minHeightDps, WEIGHT_POWER);
             weights += w;
             out.add(new DisplayOption().add(p).multiply(w));
         }
-        return out.multiply(1.0f / weights);
+        out.multiply(1.0f / weights);
+
+        // Since the bitmaps are persisted, ensure that the default bitmap size is same as
+        // predefined size to avoid cache invalidation
+        out.iconSizes[DisplayOption.INDEX_DEFAULT] =
+                closestPoint.iconSizes[DisplayOption.INDEX_DEFAULT];
+        for (int i = DisplayOption.INDEX_DEFAULT + 1; i < DisplayOption.COUNT_TOTAL; i++) {
+            out.iconSizes[i] = Math.min(out.iconSizes[i],
+                    out.iconSizes[DisplayOption.INDEX_DEFAULT]);
+        }
+
+        return out;
     }
 
     public DeviceProfile getDeviceProfile(Context context) {
@@ -614,7 +607,7 @@
         /**
          * Called when the device provide changes
          */
-        void onIdpChanged(InvariantDeviceProfile profile);
+        void onIdpChanged(boolean modelPropertiesChanged);
     }
 
 
@@ -695,6 +688,14 @@
     @VisibleForTesting
     static final class DisplayOption {
 
+        static final int INDEX_DEFAULT = 0;
+        static final int INDEX_LANDSCAPE = 1;
+        static final int INDEX_ALL_APPS = 2;
+        static final int INDEX_TWO_PANEL_PORTRAIT = 3;
+        static final int INDEX_TWO_PANEL_LANDSCAPE = 4;
+
+        static final int COUNT_TOTAL = 5;
+
         public final GridOption grid;
 
         private final float minWidthDps;
@@ -705,16 +706,8 @@
         private float minCellWidth;
         private float borderSpacing;
 
-        private float iconSize;
-        private float iconTextSize;
-        private float landscapeIconSize;
-        private float twoPanelPortraitIconSize;
-        private float twoPanelLandscapeIconSize;
-        private float landscapeIconTextSize;
-        private float twoPanelPortraitIconTextSize;
-        private float twoPanelLandscapeIconTextSize;
-        private float allAppsIconSize;
-        private float allAppsIconTextSize;
+        private final float[] iconSizes = new float[COUNT_TOTAL];
+        private final float[] textSizes = new float[COUNT_TOTAL];
 
         DisplayOption(GridOption grid, Context context, AttributeSet attrs, int defaultFlagValue) {
             this.grid = grid;
@@ -732,27 +725,36 @@
             minCellWidth = a.getFloat(R.styleable.ProfileDisplayOption_minCellWidthDps, 0);
             borderSpacing = a.getFloat(R.styleable.ProfileDisplayOption_borderSpacingDps, 0);
 
-            iconSize = a.getFloat(R.styleable.ProfileDisplayOption_iconImageSize, 0);
-            landscapeIconSize = a.getFloat(R.styleable.ProfileDisplayOption_landscapeIconSize,
-                    iconSize);
-            twoPanelPortraitIconSize = a.getFloat(
-                    R.styleable.ProfileDisplayOption_twoPanelPortraitIconSize, iconSize);
-            twoPanelLandscapeIconSize = a.getFloat(
-                    R.styleable.ProfileDisplayOption_twoPanelLandscapeIconSize,
-                    landscapeIconSize);
-            iconTextSize = a.getFloat(R.styleable.ProfileDisplayOption_iconTextSize, 0);
-            landscapeIconTextSize = a.getFloat(
-                    R.styleable.ProfileDisplayOption_landscapeIconTextSize, iconTextSize);
-            twoPanelPortraitIconTextSize = a.getFloat(
-                    R.styleable.ProfileDisplayOption_twoPanelPortraitIconTextSize, iconTextSize);
-            twoPanelLandscapeIconTextSize = a.getFloat(
-                    R.styleable.ProfileDisplayOption_twoPanelLandscapeIconTextSize,
-                    landscapeIconTextSize);
+            iconSizes[INDEX_DEFAULT] =
+                    a.getFloat(R.styleable.ProfileDisplayOption_iconImageSize, 0);
+            iconSizes[INDEX_LANDSCAPE] =
+                    a.getFloat(R.styleable.ProfileDisplayOption_landscapeIconSize,
+                            iconSizes[INDEX_DEFAULT]);
+            iconSizes[INDEX_ALL_APPS] =
+                    a.getFloat(R.styleable.ProfileDisplayOption_allAppsIconSize,
+                            iconSizes[INDEX_DEFAULT]);
+            iconSizes[INDEX_TWO_PANEL_PORTRAIT] =
+                    a.getFloat(R.styleable.ProfileDisplayOption_twoPanelPortraitIconSize,
+                            iconSizes[INDEX_DEFAULT]);
+            iconSizes[INDEX_TWO_PANEL_LANDSCAPE] =
+                    a.getFloat(R.styleable.ProfileDisplayOption_twoPanelLandscapeIconSize,
+                            iconSizes[INDEX_LANDSCAPE]);
 
-            allAppsIconSize = a.getFloat(R.styleable.ProfileDisplayOption_allAppsIconSize,
-                    iconSize);
-            allAppsIconTextSize = a.getFloat(R.styleable.ProfileDisplayOption_allAppsIconTextSize,
-                    iconTextSize);
+            textSizes[INDEX_DEFAULT] =
+                    a.getFloat(R.styleable.ProfileDisplayOption_iconTextSize, 0);
+            textSizes[INDEX_LANDSCAPE] =
+                    a.getFloat(R.styleable.ProfileDisplayOption_landscapeIconTextSize,
+                            textSizes[INDEX_DEFAULT]);
+            textSizes[INDEX_ALL_APPS] =
+                    a.getFloat(R.styleable.ProfileDisplayOption_allAppsIconTextSize,
+                            textSizes[INDEX_DEFAULT]);
+            textSizes[INDEX_TWO_PANEL_PORTRAIT] =
+                    a.getFloat(R.styleable.ProfileDisplayOption_twoPanelPortraitIconTextSize,
+                            textSizes[INDEX_DEFAULT]);
+            textSizes[INDEX_TWO_PANEL_LANDSCAPE] =
+                    a.getFloat(R.styleable.ProfileDisplayOption_twoPanelLandscapeIconTextSize,
+                            textSizes[INDEX_LANDSCAPE]);
+
             a.recycle();
         }
 
@@ -771,16 +773,10 @@
         }
 
         private DisplayOption multiply(float w) {
-            iconSize *= w;
-            landscapeIconSize *= w;
-            twoPanelPortraitIconSize *= w;
-            twoPanelLandscapeIconSize *= w;
-            allAppsIconSize *= w;
-            iconTextSize *= w;
-            landscapeIconTextSize *= w;
-            twoPanelPortraitIconTextSize *= w;
-            twoPanelLandscapeIconTextSize *= w;
-            allAppsIconTextSize *= w;
+            for (int i = 0; i < COUNT_TOTAL; i++) {
+                iconSizes[i] *= w;
+                textSizes[i] *= w;
+            }
             minCellHeight *= w;
             minCellWidth *= w;
             borderSpacing *= w;
@@ -788,16 +784,10 @@
         }
 
         private DisplayOption add(DisplayOption p) {
-            iconSize += p.iconSize;
-            landscapeIconSize += p.landscapeIconSize;
-            twoPanelPortraitIconSize += p.twoPanelPortraitIconSize;
-            twoPanelLandscapeIconSize += p.twoPanelLandscapeIconSize;
-            allAppsIconSize += p.allAppsIconSize;
-            iconTextSize += p.iconTextSize;
-            landscapeIconTextSize += p.landscapeIconTextSize;
-            twoPanelPortraitIconTextSize += p.twoPanelPortraitIconTextSize;
-            twoPanelLandscapeIconTextSize += p.twoPanelLandscapeIconTextSize;
-            allAppsIconTextSize += p.allAppsIconTextSize;
+            for (int i = 0; i < COUNT_TOTAL; i++) {
+                iconSizes[i] += p.iconSizes[i];
+                textSizes[i] += p.textSizes[i];
+            }
             minCellHeight += p.minCellHeight;
             minCellWidth += p.minCellWidth;
             borderSpacing += p.borderSpacing;
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 4d5cc5e..3754dc1 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -558,7 +558,7 @@
     public void onConfigurationChanged(Configuration newConfig) {
         int diff = newConfig.diff(mOldConfig);
         if ((diff & (CONFIG_ORIENTATION | CONFIG_SCREEN_SIZE)) != 0) {
-            onIdpChanged(mDeviceProfile.inv);
+            onIdpChanged(false);
         }
 
         mOldConfig.setTo(newConfig);
@@ -566,8 +566,8 @@
     }
 
     @Override
-    public void onIdpChanged(InvariantDeviceProfile idp) {
-        initDeviceProfile(idp);
+    public void onIdpChanged(boolean modelPropertiesChanged) {
+        initDeviceProfile(mDeviceProfile.inv);
         dispatchDeviceProfileChanged();
         reapplyUi();
         mDragLayer.recreateControllers();
@@ -2186,6 +2186,24 @@
     }
 
     private void bindAddScreens(IntArray orderedScreenIds) {
+        if (mDeviceProfile.isTwoPanels) {
+            // Some empty pages might have been removed while the phone was in a single panel
+            // mode, so we want to add those empty pages back.
+            IntSet screenIds = IntSet.wrap(orderedScreenIds);
+            for (int i = 0; i < orderedScreenIds.size(); i++) {
+                int screenId = orderedScreenIds.get(i);
+                // Don't add the page pair if the page is the last one and if the pair is on the
+                // right, because that would cause a bug when adding new pages.
+                // TODO: (b/196376162) remove this when the new screen id logic is fixed for two
+                //  panel in Workspace::commitExtraEmptyScreen
+                if (i == orderedScreenIds.size() - 1 && screenId % 2 == 0) {
+                    continue;
+                }
+                screenIds.add(mWorkspace.getPagePair(screenId));
+            }
+            orderedScreenIds = screenIds.getArray();
+        }
+
         int count = orderedScreenIds.size();
         for (int i = 0; i < count; i++) {
             int screenId = orderedScreenIds.get(i);
@@ -2193,7 +2211,6 @@
                 // No need to bind the first screen, as its always bound.
                 continue;
             }
-
             mWorkspace.insertNewWorkspaceScreenBeforeEmptyScreen(screenId);
         }
     }
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index 702b73a..8adbcd9 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -83,7 +83,11 @@
         Log.v(Launcher.TAG, "LauncherAppState initiated");
         Preconditions.assertUIThread();
 
-        mInvariantDeviceProfile.addOnChangeListener(idp -> refreshAndReloadLauncher());
+        mInvariantDeviceProfile.addOnChangeListener(modelPropertiesChanged -> {
+            if (modelPropertiesChanged) {
+                refreshAndReloadLauncher();
+            }
+        });
 
         mContext.getSystemService(LauncherApps.class).registerCallback(mModel);
 
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 42b2033..94ec903 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -123,6 +123,7 @@
 
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.Iterator;
 import java.util.List;
 import java.util.function.Predicate;
 import java.util.stream.Collectors;
@@ -800,6 +801,21 @@
         return mScreenOrder;
     }
 
+    /**
+     * Returns the page that is shown together with the given page when two panel is enabled.
+     * @throws IllegalStateException if called while two panel home isn't enabled.
+     */
+    public int getPagePair(int page) {
+        if (!isTwoPanelEnabled()) {
+            throw new IllegalStateException("Two panel home isn't enabled.");
+        }
+        if (page % 2 == 0) {
+            return page + 1;
+        } else {
+            return page - 1;
+        }
+    }
+
     public void stripEmptyScreens() {
         if (mLauncher.isWorkspaceLoading()) {
             // Don't strip empty screens if the workspace is still loading.
@@ -825,6 +841,22 @@
             }
         }
 
+        // When two panel home is enabled we only remove an empty page if both visible pages are
+        // empty.
+        if (isTwoPanelEnabled()) {
+            // We go through all the pages that were marked as removable and check their page pair
+            Iterator<Integer> removeScreensIterator = removeScreens.iterator();
+            while (removeScreensIterator.hasNext()) {
+                int pageToRemove = removeScreensIterator.next();
+                int pagePair = getPagePair(pageToRemove);
+                if (!removeScreens.contains(pagePair)) {
+                    // The page pair isn't empty so we want to remove the current page from the
+                    // removable pages' collection
+                    removeScreensIterator.remove();
+                }
+            }
+        }
+
         // We enforce at least one page to add new items to. In the case that we remove the last
         // such screen, we convert the last screen to the empty screen
         int minScreens = 1;
diff --git a/src/com/android/launcher3/WorkspaceLayoutManager.java b/src/com/android/launcher3/WorkspaceLayoutManager.java
index d6302ce..44a5536 100644
--- a/src/com/android/launcher3/WorkspaceLayoutManager.java
+++ b/src/com/android/launcher3/WorkspaceLayoutManager.java
@@ -32,6 +32,8 @@
     int EXTRA_EMPTY_SCREEN_ID = -201;
     // The is the first screen. It is always present, even if its empty.
     int FIRST_SCREEN_ID = 0;
+    // This is the second page. On two panel home it is always present, even if its empty.
+    int SECOND_SCREEN_ID = 1;
 
     /**
      * At bind time, we use the rank (screenId) to compute x and y for hotseat items.
diff --git a/src/com/android/launcher3/allapps/AllAppsContainerView.java b/src/com/android/launcher3/allapps/AllAppsContainerView.java
index d2c71b2..f420ec2 100644
--- a/src/com/android/launcher3/allapps/AllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsContainerView.java
@@ -499,8 +499,10 @@
 
     private void replaceRVContainer(boolean showTabs) {
         for (int i = 0; i < mAH.length; i++) {
-            if (mAH[i].recyclerView != null) {
-                mAH[i].recyclerView.setLayoutManager(null);
+            AllAppsRecyclerView rv = mAH[i].recyclerView;
+            if (rv != null) {
+                rv.setLayoutManager(null);
+                rv.setAdapter(null);
             }
         }
         View oldView = getRecyclerViewContainer();
diff --git a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
index 2c84a3d..bddbbd0 100644
--- a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
@@ -63,6 +63,13 @@
     private final SparseIntArray mCachedScrollPositions = new SparseIntArray();
     private final AllAppsFastScrollHelper mFastScrollHelper;
 
+
+    private final AdapterDataObserver mObserver = new RecyclerView.AdapterDataObserver() {
+        public void onChanged() {
+            mCachedScrollPositions.clear();
+        }
+    };
+
     // The empty-search result background
     private AllAppsBackgroundDrawable mEmptySearchBackground;
     private int mEmptySearchBackgroundTopOffset;
@@ -247,12 +254,13 @@
 
     @Override
     public void setAdapter(Adapter adapter) {
+        if (getAdapter() != null) {
+            getAdapter().unregisterAdapterDataObserver(mObserver);
+        }
         super.setAdapter(adapter);
-        adapter.registerAdapterDataObserver(new RecyclerView.AdapterDataObserver() {
-            public void onChanged() {
-                mCachedScrollPositions.clear();
-            }
-        });
+        if (adapter != null) {
+            adapter.registerAdapterDataObserver(mObserver);
+        }
     }
 
     @Override
diff --git a/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java b/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
index a96de31..94c578e 100644
--- a/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
+++ b/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
@@ -65,6 +65,7 @@
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.Workspace;
 import com.android.launcher3.WorkspaceLayoutManager;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.folder.FolderIcon;
@@ -279,7 +280,7 @@
                     mDp.workspacePadding.top,
                     mDp.workspacePadding.right + mDp.cellLayoutPaddingLeftRightPx,
                     mDp.workspacePadding.bottom);
-            mWorkspaceScreens.put(PreviewSurfaceRenderer.SECOND_SCREEN_ID, rightPanel);
+            mWorkspaceScreens.put(Workspace.SECOND_SCREEN_ID, rightPanel);
         }
 
         if (Utilities.ATLEAST_S) {
diff --git a/src/com/android/launcher3/graphics/PreviewSurfaceRenderer.java b/src/com/android/launcher3/graphics/PreviewSurfaceRenderer.java
index af006d6..f4d1e61 100644
--- a/src/com/android/launcher3/graphics/PreviewSurfaceRenderer.java
+++ b/src/com/android/launcher3/graphics/PreviewSurfaceRenderer.java
@@ -66,9 +66,6 @@
 
     private static final int FADE_IN_ANIMATION_DURATION = 200;
 
-    // The is the second screen. It is always present in two panel, even if its empty.
-    static final int SECOND_SCREEN_ID = 1;
-
     private static final String KEY_HOST_TOKEN = "host_token";
     private static final String KEY_VIEW_WIDTH = "width";
     private static final String KEY_VIEW_HEIGHT = "height";
@@ -172,7 +169,7 @@
                             + LauncherSettings.Favorites.CONTAINER_HOTSEAT;
                     if (deviceProfile.isTwoPanels) {
                         query += " or " + LauncherSettings.Favorites.SCREEN + " = "
-                                + SECOND_SCREEN_ID;
+                                + Workspace.SECOND_SCREEN_ID;
                     }
                     loadWorkspace(new ArrayList<>(), LauncherSettings.Favorites.PREVIEW_CONTENT_URI,
                             query);
diff --git a/src/com/android/launcher3/model/AddWorkspaceItemsTask.java b/src/com/android/launcher3/model/AddWorkspaceItemsTask.java
index a13fa55..fea15c4 100644
--- a/src/com/android/launcher3/model/AddWorkspaceItemsTask.java
+++ b/src/com/android/launcher3/model/AddWorkspaceItemsTask.java
@@ -16,6 +16,7 @@
 package com.android.launcher3.model;
 
 import static com.android.launcher3.WorkspaceLayoutManager.FIRST_SCREEN_ID;
+import static com.android.launcher3.WorkspaceLayoutManager.SECOND_SCREEN_ID;
 
 import android.content.Intent;
 import android.content.pm.LauncherActivityInfo;
@@ -299,6 +300,11 @@
         IntSet screensToExclude = new IntSet();
         if (FeatureFlags.QSB_ON_FIRST_SCREEN) {
             screensToExclude.add(FIRST_SCREEN_ID);
+
+            // On split display we don't want to add the new items onto the second screen.
+            if (app.getInvariantDeviceProfile().isSplitDisplay) {
+                screensToExclude.add(SECOND_SCREEN_ID);
+            }
         }
 
         for (int screen = 0; screen < screenCount; screen++) {
diff --git a/src/com/android/launcher3/touch/LandscapePagedViewHandler.java b/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
index 0304a4e..17a00e2 100644
--- a/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
+++ b/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
@@ -45,6 +45,7 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.util.SplitConfigurationOptions;
 import com.android.launcher3.util.SplitConfigurationOptions.SplitPositionOption;
+import com.android.launcher3.util.SplitConfigurationOptions.StagePosition;
 import com.android.launcher3.views.BaseDragLayer;
 
 import java.util.Collections;
@@ -165,16 +166,24 @@
     }
 
     @Override
-    public int getSplitTaskViewDismissDirection(SplitPositionOption splitPosition,
+    public int getSplitTaskViewDismissDirection(@StagePosition int stagePosition,
             DeviceProfile dp) {
         // Don't use device profile here because we know we're in fake landscape, only split option
         // available is top/left
-        if (splitPosition.mStagePosition == STAGE_POSITION_TOP_OR_LEFT) {
+//<<<<<<< HEAD
+//        if (splitPosition.stagePosition == STAGE_POSITION_TOP_OR_LEFT) {
+//            // Top (visually left) side
+//            return SPLIT_TRANSLATE_PRIMARY_NEGATIVE;
+//        }
+//        throw new IllegalStateException("Invalid split stage position: " +
+//                splitPosition.stagePosition);
+//=======
+        if (stagePosition == STAGE_POSITION_TOP_OR_LEFT) {
             // Top (visually left) side
             return SPLIT_TRANSLATE_PRIMARY_NEGATIVE;
         }
-        throw new IllegalStateException("Invalid split stage position: " +
-                splitPosition.mStagePosition);
+        throw new IllegalStateException("Invalid split stage position: " + stagePosition);
+//>>>>>>> f6769c8532 (Add Split button in OverviewActions)
     }
 
     @Override
@@ -367,7 +376,7 @@
 
     @Override
     public void getInitialSplitPlaceholderBounds(int placeholderHeight, DeviceProfile dp,
-            SplitPositionOption splitPositionOption, Rect out) {
+            @StagePosition int stagePosition, Rect out) {
         // In fake land/seascape, the placeholder always needs to go to the "top" of the device,
         // which is the same bounds as 0 rotation.
         int width = dp.widthPx;
@@ -376,7 +385,7 @@
 
     @Override
     public void getFinalSplitPlaceholderBounds(int splitDividerSize, DeviceProfile dp,
-            SplitPositionOption initialSplitOption, Rect out1, Rect out2) {
+            @StagePosition int stagePosition, Rect out1, Rect out2) {
         // In fake land/seascape, the window bounds are always top and bottom half
         int screenHeight = dp.heightPx;
         int screenWidth = dp.widthPx;
@@ -385,14 +394,15 @@
     }
 
     @Override
+//<<<<<<< HEAD
     public void setSplitTaskSwipeRect(DeviceProfile dp, Rect outRect,
             SplitConfigurationOptions.StagedSplitBounds splitInfo, int desiredStagePosition) {
         float diff;
         if (desiredStagePosition == SplitConfigurationOptions.STAGE_POSITION_TOP_OR_LEFT) {
-            diff = outRect.height() * (1f - splitInfo.mLeftTaskPercent);
+            diff = outRect.height() * (1f - splitInfo.leftTaskPercent);
             outRect.bottom -= diff;
         } else {
-            diff = outRect.height() * splitInfo.mLeftTaskPercent;
+            diff = outRect.height() * splitInfo.leftTaskPercent;
             outRect.top += diff;
         }
     }
@@ -402,7 +412,7 @@
             SplitConfigurationOptions.StagedSplitBounds splitInfo, int desiredStagePosition) {
         if (desiredStagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT) {
             // The preview set is for the bottom/right, inset by top/left task
-            splitOffset.x = splitInfo.mLeftTopBounds.width() + splitInfo.mDividerBounds.width() / 2;
+            splitOffset.x = splitInfo.leftTopBounds.width() + splitInfo.dividerBounds.width() / 2;
         }
     }
 
@@ -413,18 +423,25 @@
         int spaceAboveSnapshot = dp.overviewTaskThumbnailTopMarginPx;
         int totalThumbnailHeight = taskParent.getHeight() - spaceAboveSnapshot;
         int totalThumbnailWidth = taskParent.getWidth();
-        int dividerBar = splitBoundsConfig.mDividerBounds.width() / 2;
+        int dividerBar = splitBoundsConfig.dividerBounds.width() / 2;
         ViewGroup.LayoutParams primaryLp = mSnapshotView.getLayoutParams();
         ViewGroup.LayoutParams secondaryLp = mSnapshotView2.getLayoutParams();
 
         primaryLp.width = totalThumbnailWidth;
-        primaryLp.height = (int)(totalThumbnailHeight * splitBoundsConfig.mLeftTaskPercent);
+        primaryLp.height = (int) (totalThumbnailHeight * splitBoundsConfig.leftTaskPercent);
 
         secondaryLp.width = totalThumbnailWidth;
         secondaryLp.height = totalThumbnailHeight - primaryLp.height - dividerBar;
         mSnapshotView2.setTranslationY(primaryLp.height + spaceAboveSnapshot + dividerBar);
     }
 
+//=======
+    @Override
+    public int getDefaultSplitPosition(DeviceProfile deviceProfile) {
+        throw new IllegalStateException("Default position not available in fake landscape");
+//>>>>>>> f6769c8532 (Add Split button in OverviewActions)
+    }
+
     @Override
     public FloatProperty getSplitSelectTaskOffset(FloatProperty primary, FloatProperty secondary,
             DeviceProfile deviceProfile) {
diff --git a/src/com/android/launcher3/touch/PagedOrientationHandler.java b/src/com/android/launcher3/touch/PagedOrientationHandler.java
index 5ef6950..b34a81e 100644
--- a/src/com/android/launcher3/touch/PagedOrientationHandler.java
+++ b/src/com/android/launcher3/touch/PagedOrientationHandler.java
@@ -80,11 +80,11 @@
     FloatProperty<View> getSecondaryViewTranslate();
 
     /**
-     * @param splitPosition The position where the view to be split will go
+     * @param stagePosition The position where the view to be split will go
      * @return {@link #SPLIT_TRANSLATE_*} constants to indicate which direction the
      * dismissal should happen
      */
-    int getSplitTaskViewDismissDirection(SplitPositionOption splitPosition, DeviceProfile dp);
+    int getSplitTaskViewDismissDirection(@StagePosition int stagePosition, DeviceProfile dp);
     int getPrimaryScroll(View view);
     float getPrimaryScale(View view);
     int getChildStart(View view);
@@ -122,18 +122,20 @@
      * @param splitholderSize height of placeholder view in portrait, width in landscape
      */
     void getInitialSplitPlaceholderBounds(int splitholderSize, DeviceProfile dp,
-            SplitPositionOption splitPositionOption, Rect out);
+            @StagePosition int stagePosition, Rect out);
 
     /**
      * @param splitDividerSize height of split screen drag handle in portrait, width in landscape
-     * @param initialSplitOption the split position option (top/left, bottom/right) of the first
+     * @param stagePosition the split position option (top/left, bottom/right) of the first
      *                           task selected for entering split
      * @param out1 the bounds for where the first selected app will be
      * @param out2 the bounds for where the second selected app will be, complimentary to
      *             {@param out1} based on {@param initialSplitOption}
      */
     void getFinalSplitPlaceholderBounds(int splitDividerSize, DeviceProfile dp,
-            SplitPositionOption initialSplitOption, Rect out1, Rect out2);
+            @StagePosition int stagePosition, Rect out1, Rect out2);
+
+    int getDefaultSplitPosition(DeviceProfile deviceProfile);
 
     /**
      * @param outRect This is expected to be the rect that has the dimensions for a non-split,
diff --git a/src/com/android/launcher3/touch/PortraitPagedViewHandler.java b/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
index bc3c0bf..640e6cc 100644
--- a/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
+++ b/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
@@ -44,6 +44,7 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.util.SplitConfigurationOptions;
 import com.android.launcher3.util.SplitConfigurationOptions.SplitPositionOption;
+import com.android.launcher3.util.SplitConfigurationOptions.StagePosition;
 import com.android.launcher3.views.BaseDragLayer;
 
 import java.util.ArrayList;
@@ -165,9 +166,13 @@
     }
 
     @Override
-    public int getSplitTaskViewDismissDirection(SplitPositionOption splitPosition,
+    public int getSplitTaskViewDismissDirection(@StagePosition int stagePosition,
             DeviceProfile dp) {
-        if (splitPosition.mStagePosition == STAGE_POSITION_TOP_OR_LEFT) {
+//<<<<<<< HEAD
+//        if (splitPosition.stagePosition == STAGE_POSITION_TOP_OR_LEFT) {
+//=======
+        if (stagePosition == STAGE_POSITION_TOP_OR_LEFT) {
+//>>>>>>> f6769c8532 (Add Split button in OverviewActions)
             if (dp.isLandscape) {
                 // Left side
                 return SPLIT_TRANSLATE_PRIMARY_NEGATIVE;
@@ -175,12 +180,20 @@
                 // Top side
                 return SPLIT_TRANSLATE_SECONDARY_NEGATIVE;
             }
-        } else if (splitPosition.mStagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT) {
+//<<<<<<< HEAD
+//        } else if (splitPosition.stagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT) {
+             // We don't have a bottom option, so should be right
+//            return SPLIT_TRANSLATE_PRIMARY_POSITIVE;
+//        }
+//        throw new IllegalStateException("Invalid split stage position: " +
+//                splitPosition.stagePosition);
+//=======
+        } else if (stagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT) {
             // We don't have a bottom option, so should be right
             return SPLIT_TRANSLATE_PRIMARY_POSITIVE;
         }
-        throw new IllegalStateException("Invalid split stage position: " +
-                splitPosition.mStagePosition);
+        throw new IllegalStateException("Invalid split stage position: " + stagePosition);
+//>>>>>>> f6769c8532 (Add Split button in OverviewActions)
     }
 
     @Override
@@ -416,7 +429,7 @@
 
     @Override
     public void getInitialSplitPlaceholderBounds(int placeholderHeight, DeviceProfile dp,
-            SplitPositionOption splitPositionOption, Rect out) {
+            @StagePosition int stagePosition, Rect out) {
         int width = dp.widthPx;
         out.set(0, 0, width, placeholderHeight);
         if (!dp.isLandscape) {
@@ -425,7 +438,11 @@
         }
 
         // Now we rotate the portrait rect depending on what side we want pinned
-        boolean pinToRight = splitPositionOption.mStagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT;
+//<<<<<<< HEAD
+//        boolean pinToRight = splitPositionOption.stagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT;
+//=======
+        boolean pinToRight = stagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT;
+//>>>>>>> f6769c8532 (Add Split button in OverviewActions)
 
         int screenHeight = dp.heightPx;
         float postRotateScale = (float) screenHeight / width;
@@ -442,7 +459,7 @@
 
     @Override
     public void getFinalSplitPlaceholderBounds(int splitDividerSize, DeviceProfile dp,
-            SplitPositionOption initialSplitOption, Rect out1, Rect out2) {
+            @StagePosition int stagePosition, Rect out1, Rect out2) {
         int screenHeight = dp.heightPx;
         int screenWidth = dp.widthPx;
         out1.set(0, 0, screenWidth, screenHeight / 2 - splitDividerSize);
@@ -453,7 +470,11 @@
         }
 
         // Now we rotate the portrait rect depending on what side we want pinned
-        boolean pinToRight = initialSplitOption.mStagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT;
+//<<<<<<< HEAD
+//        boolean pinToRight = initialSplitOption.stagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT;
+//=======
+        boolean pinToRight = stagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT;
+//>>>>>>> f6769c8532 (Add Split button in OverviewActions)
         float postRotateScale = (float) screenHeight / screenWidth;
 
         mTmpMatrix.reset();
@@ -471,24 +492,25 @@
     }
 
     @Override
+//<<<<<<< HEAD
     public void setSplitTaskSwipeRect(DeviceProfile dp, Rect outRect,
             SplitConfigurationOptions.StagedSplitBounds splitInfo, int desiredStagePosition) {
         boolean isLandscape = dp.isLandscape;
         float diff;
         if (desiredStagePosition == SplitConfigurationOptions.STAGE_POSITION_TOP_OR_LEFT) {
             if (isLandscape) {
-                diff = outRect.width() * (1f - splitInfo.mLeftTaskPercent);
+                diff = outRect.width() * (1f - splitInfo.leftTaskPercent);
                 outRect.right -= diff;
             } else {
-                diff = outRect.height() * (1f - splitInfo.mTopTaskPercent);
+                diff = outRect.height() * (1f - splitInfo.topTaskPercent);
                 outRect.bottom -= diff;
             }
         } else {
             if (isLandscape) {
-                diff = outRect.width() * splitInfo.mLeftTaskPercent;
+                diff = outRect.width() * splitInfo.leftTaskPercent;
                 outRect.left += diff;
             } else {
-                diff = outRect.height() * splitInfo.mTopTaskPercent;
+                diff = outRect.height() * splitInfo.topTaskPercent;
                 outRect.top += diff;
             }
         }
@@ -499,11 +521,11 @@
             SplitConfigurationOptions.StagedSplitBounds splitInfo, int desiredStagePosition) {
         if (desiredStagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT) {
             if (dp.isLandscape) {
-                splitOffset.x = splitInfo.mLeftTopBounds.width() +
-                        splitInfo.mDividerBounds.width() / 2;
+                splitOffset.x = splitInfo.leftTopBounds.width() +
+                        splitInfo.dividerBounds.width() / 2;
             } else {
-                splitOffset.y = splitInfo.mLeftTopBounds.height() +
-                        splitInfo.mDividerBounds.height() / 2;
+                splitOffset.y = splitInfo.leftTopBounds.height() +
+                        splitInfo.dividerBounds.height() / 2;
             }
         }
     }
@@ -516,15 +538,15 @@
         int totalThumbnailHeight = taskParent.getHeight() - spaceAboveSnapshot;
         int totalThumbnailWidth = taskParent.getWidth();
         int dividerBar = (dp.isLandscape ?
-                splitBoundsConfig.mDividerBounds.width() :
-                splitBoundsConfig.mDividerBounds.height())
+                splitBoundsConfig.dividerBounds.width() :
+                splitBoundsConfig.dividerBounds.height())
                 / 2;
         ViewGroup.LayoutParams primaryLp = mSnapshotView.getLayoutParams();
         ViewGroup.LayoutParams secondaryLp = mSnapshotView2.getLayoutParams();
 
         if (dp.isLandscape) {
             primaryLp.height = totalThumbnailHeight;
-            primaryLp.width = (int)(totalThumbnailWidth * splitBoundsConfig.mLeftTaskPercent);
+            primaryLp.width = (int) (totalThumbnailWidth * splitBoundsConfig.leftTaskPercent);
 
             secondaryLp.height = totalThumbnailHeight;
             secondaryLp.width = totalThumbnailWidth - primaryLp.width - dividerBar;
@@ -532,7 +554,7 @@
             mSnapshotView2.setTranslationY(spaceAboveSnapshot);
         } else {
             primaryLp.width = totalThumbnailWidth;
-            primaryLp.height = (int)(totalThumbnailHeight * splitBoundsConfig.mTopTaskPercent);
+            primaryLp.height = (int) (totalThumbnailHeight * splitBoundsConfig.topTaskPercent);
 
             secondaryLp.width = totalThumbnailWidth;
             secondaryLp.height = totalThumbnailHeight - primaryLp.height - dividerBar;
@@ -541,6 +563,20 @@
         }
     }
 
+//=======
+    @Override
+    public int getDefaultSplitPosition(DeviceProfile deviceProfile) {
+        if (!deviceProfile.isTablet) {
+            throw new IllegalStateException("Default position available only for large screens");
+        }
+        if (deviceProfile.isLandscape) {
+            return STAGE_POSITION_BOTTOM_OR_RIGHT;
+        } else {
+            return STAGE_POSITION_TOP_OR_LEFT;
+//>>>>>>> f6769c8532 (Add Split button in OverviewActions)
+        }
+    }
+
     @Override
     public FloatProperty getSplitSelectTaskOffset(FloatProperty primary, FloatProperty secondary,
             DeviceProfile dp) {
diff --git a/src/com/android/launcher3/util/DisplayController.java b/src/com/android/launcher3/util/DisplayController.java
index e2c0a32..7446181 100644
--- a/src/com/android/launcher3/util/DisplayController.java
+++ b/src/com/android/launcher3/util/DisplayController.java
@@ -23,6 +23,8 @@
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 import static com.android.launcher3.util.WindowManagerCompat.MIN_TABLET_WIDTH;
 
+import static java.util.Collections.emptyMap;
+
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.content.ComponentCallbacks;
@@ -34,10 +36,11 @@
 import android.hardware.display.DisplayManager;
 import android.hardware.display.DisplayManager.DisplayListener;
 import android.os.Build;
+import android.text.TextUtils;
+import android.util.ArrayMap;
 import android.util.ArraySet;
 import android.util.Log;
 import android.view.Display;
-import android.view.WindowMetrics;
 
 import androidx.annotation.AnyThread;
 import androidx.annotation.UiThread;
@@ -47,7 +50,7 @@
 import com.android.launcher3.uioverrides.ApiWrapper;
 
 import java.util.ArrayList;
-import java.util.Collections;
+import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
 
@@ -76,8 +79,8 @@
 
     // Null for SDK < S
     private final Context mWindowContext;
-
     private final ArrayList<DisplayInfoChangeListener> mListeners = new ArrayList<>();
+
     private Info mInfo;
 
     private DisplayController(Context context) {
@@ -95,19 +98,24 @@
             mContext.registerReceiver(configChangeReceiver,
                     new IntentFilter(Intent.ACTION_CONFIGURATION_CHANGED));
         }
+        mInfo = new Info(getDisplayInfoContext(display), display,
+                getInternalDisplays(mDM), emptyMap());
+        mDM.registerDisplayListener(this, UI_HELPER_EXECUTOR.getHandler());
+    }
 
-        // Create a single holder for all internal displays. External display holders created
-        // lazily.
-        Set<PortraitSize> extraInternalDisplays = new ArraySet<>();
-        for (Display d : mDM.getDisplays()) {
-            if (ApiWrapper.isInternalDisplay(display) && d.getDisplayId() != DEFAULT_DISPLAY) {
+    private static ArrayMap<String, PortraitSize> getInternalDisplays(
+            DisplayManager displayManager) {
+        Display[] displays = displayManager.getDisplays();
+        ArrayMap<String, PortraitSize> internalDisplays = new ArrayMap<>();
+        for (Display display : displays) {
+            if (ApiWrapper.isInternalDisplay(display)) {
                 Point size = new Point();
-                d.getRealSize(size);
-                extraInternalDisplays.add(new PortraitSize(size.x, size.y));
+                display.getRealSize(size);
+                internalDisplays.put(ApiWrapper.getUniqueId(display),
+                        new PortraitSize(size.x, size.y));
             }
         }
-        mInfo = new Info(getDisplayInfoContext(display), display, extraInternalDisplays);
-        mDM.registerDisplayListener(this, UI_HELPER_EXECUTOR.getHandler());
+        return internalDisplays;
     }
 
     @Override
@@ -203,11 +211,16 @@
     @AnyThread
     private void handleInfoChange(Display display) {
         Info oldInfo = mInfo;
-        Set<PortraitSize> extraDisplaysSizes = oldInfo.mAllSizes.size() > 1
-                ? oldInfo.mAllSizes : Collections.emptySet();
 
         Context displayContext = getDisplayInfoContext(display);
-        Info newInfo = new Info(displayContext, display, extraDisplaysSizes);
+        Info newInfo = new Info(displayContext, display,
+                oldInfo.mInternalDisplays, oldInfo.mPerDisplayBounds);
+
+        if (newInfo.densityDpi != oldInfo.densityDpi || newInfo.fontScale != oldInfo.fontScale) {
+            // Cache may not be valid anymore, recreate without cache
+            newInfo = new Info(displayContext, display, getInternalDisplays(mDM), emptyMap());
+        }
+
         int change = 0;
         if (!newInfo.mScreenSizeDp.equals(oldInfo.mScreenSizeDp)) {
             change |= CHANGE_ACTIVE_SCREEN;
@@ -240,7 +253,6 @@
 
     public static class Info {
 
-        public final int id;
         public final int singleFrameMs;
 
         // Configuration properties
@@ -249,19 +261,21 @@
         public final int densityDpi;
 
         private final PortraitSize mScreenSizeDp;
-        private final Set<PortraitSize> mAllSizes;
 
         public final Point currentSize;
 
         public final Set<WindowBounds> supportedBounds = new ArraySet<>();
+        private final Map<String, Set<WindowBounds>> mPerDisplayBounds = new ArrayMap<>();
+        private final ArrayMap<String, PortraitSize> mInternalDisplays;
 
         public Info(Context context, Display display) {
-            this(context, display, Collections.emptySet());
+            this(context, display, new ArrayMap<>(), emptyMap());
         }
 
-        private Info(Context context, Display display, Set<PortraitSize> extraDisplaysSizes) {
-            id = display.getDisplayId();
-
+        private Info(Context context, Display display,
+                ArrayMap<String, PortraitSize> internalDisplays,
+                Map<String, Set<WindowBounds>> perDisplayBoundsCache) {
+            mInternalDisplays = internalDisplays;
             rotation = display.getRotation();
 
             Configuration config = context.getResources().getConfiguration();
@@ -271,32 +285,51 @@
 
             singleFrameMs = getSingleFrameMs(display);
             currentSize = new Point();
-
             display.getRealSize(currentSize);
 
-            if (extraDisplaysSizes.isEmpty() || !Utilities.ATLEAST_S) {
-                Point smallestSize = new Point();
-                Point largestSize = new Point();
-                display.getCurrentSizeRange(smallestSize, largestSize);
+            String myDisplayId = ApiWrapper.getUniqueId(display);
+            Set<WindowBounds> currentSupportedBounds =
+                    getSupportedBoundsForDisplay(display, currentSize);
+            mPerDisplayBounds.put(myDisplayId, currentSupportedBounds);
+            supportedBounds.addAll(currentSupportedBounds);
 
-                int portraitWidth = Math.min(currentSize.x, currentSize.y);
-                int portraitHeight = Math.max(currentSize.x, currentSize.y);
+            if (ApiWrapper.isInternalDisplay(display) && internalDisplays.size() > 1) {
+                int displayCount = internalDisplays.size();
+                for (int i = 0; i < displayCount; i++) {
+                    String displayKey = internalDisplays.keyAt(i);
+                    if (TextUtils.equals(myDisplayId, displayKey)) {
+                        continue;
+                    }
 
-                supportedBounds.add(new WindowBounds(portraitWidth, portraitHeight,
-                        smallestSize.x, largestSize.y));
-                supportedBounds.add(new WindowBounds(portraitHeight, portraitWidth,
-                        largestSize.x, smallestSize.y));
-                mAllSizes = Collections.singleton(new PortraitSize(currentSize.x, currentSize.y));
-            } else {
-                mAllSizes = new ArraySet<>(extraDisplaysSizes);
-                mAllSizes.add(new PortraitSize(currentSize.x, currentSize.y));
-                Set<WindowMetrics> metrics = WindowManagerCompat.getDisplayProfiles(
-                        context, mAllSizes, densityDpi,
-                        ApiWrapper.TASKBAR_DRAWN_IN_PROCESS);
-                metrics.forEach(wm -> supportedBounds.add(WindowBounds.fromWindowMetrics(wm)));
+                    Set<WindowBounds> displayBounds = perDisplayBoundsCache.get(displayKey);
+                    if (displayBounds == null) {
+                        // We assume densityDpi is the same across all internal displays
+                        displayBounds = WindowManagerCompat.estimateDisplayProfiles(
+                                context, internalDisplays.valueAt(i), densityDpi,
+                                ApiWrapper.TASKBAR_DRAWN_IN_PROCESS);
+                    }
+
+                    supportedBounds.addAll(displayBounds);
+                    mPerDisplayBounds.put(displayKey, displayBounds);
+                }
             }
         }
 
+        private static Set<WindowBounds> getSupportedBoundsForDisplay(Display display, Point size) {
+            Point smallestSize = new Point();
+            Point largestSize = new Point();
+            display.getCurrentSizeRange(smallestSize, largestSize);
+
+            int portraitWidth = Math.min(size.x, size.y);
+            int portraitHeight = Math.max(size.x, size.y);
+            Set<WindowBounds> result = new ArraySet<>();
+            result.add(new WindowBounds(portraitWidth, portraitHeight,
+                    smallestSize.x, largestSize.y));
+            result.add(new WindowBounds(portraitHeight, portraitWidth,
+                    largestSize.x, smallestSize.y));
+            return result;
+        }
+
         /**
          * Returns true if the bounds represent a tablet
          */
diff --git a/src/com/android/launcher3/util/IntArray.java b/src/com/android/launcher3/util/IntArray.java
index e7235e7..1c78795 100644
--- a/src/com/android/launcher3/util/IntArray.java
+++ b/src/com/android/launcher3/util/IntArray.java
@@ -296,7 +296,7 @@
 
         @Override
         public void remove() {
-            throw new UnsupportedOperationException();
+            removeIndex(--mNextIndex);
         }
     }
 }
\ No newline at end of file
diff --git a/src/com/android/launcher3/util/SplitConfigurationOptions.java b/src/com/android/launcher3/util/SplitConfigurationOptions.java
index b07c21f..41693de 100644
--- a/src/com/android/launcher3/util/SplitConfigurationOptions.java
+++ b/src/com/android/launcher3/util/SplitConfigurationOptions.java
@@ -69,44 +69,44 @@
     ///////////////////////////////////
 
     public static class SplitPositionOption {
-        public final int mIconResId;
-        public final int mTextResId;
+        public final int iconResId;
+        public final int textResId;
         @StagePosition
-        public final int mStagePosition;
+        public final int stagePosition;
 
         @StageType
         public final int mStageType;
 
         public SplitPositionOption(int iconResId, int textResId, int stagePosition, int stageType) {
-            mIconResId = iconResId;
-            mTextResId = textResId;
-            mStagePosition = stagePosition;
+            this.iconResId = iconResId;
+            this.textResId = textResId;
+            this.stagePosition = stagePosition;
             mStageType = stageType;
         }
     }
 
     public static class StagedSplitBounds {
-        public final Rect mLeftTopBounds;
-        public final Rect mRightBottomBounds;
-        public final Rect mDividerBounds;
+        public final Rect leftTopBounds;
+        public final Rect rightBottomBounds;
+        public final Rect dividerBounds;
         // This class is orientation-agnostic, so we compute both for later use
-        public final float mTopTaskPercent;
-        public final float mLeftTaskPercent;
+        public final float topTaskPercent;
+        public final float leftTaskPercent;
 
 
         public StagedSplitBounds(Rect leftTopBounds, Rect rightBottomBounds, Rect dividerBounds) {
-            mLeftTopBounds = leftTopBounds;
-            mRightBottomBounds = rightBottomBounds;
-            mDividerBounds = dividerBounds;
-            float totalHeight = mLeftTopBounds.height()
-                    + mRightBottomBounds.height()
-                    + mDividerBounds.height();
-            float totalWidth = mLeftTopBounds.width()
-                    + mRightBottomBounds.width()
-                    + mDividerBounds.width();
+            this.leftTopBounds = leftTopBounds;
+            this.rightBottomBounds = rightBottomBounds;
+            this.dividerBounds = dividerBounds;
+            float totalHeight = this.leftTopBounds.height()
+                    + this.rightBottomBounds.height()
+                    + this.dividerBounds.height();
+            float totalWidth = this.leftTopBounds.width()
+                    + this.rightBottomBounds.width()
+                    + this.dividerBounds.width();
 
-            mLeftTaskPercent = mLeftTopBounds.width() / totalWidth;
-            mTopTaskPercent = mLeftTopBounds.height() / totalHeight;
+            leftTaskPercent = this.leftTopBounds.width() / totalWidth;
+            topTaskPercent = this.leftTopBounds.height() / totalHeight;
         }
     }
 
diff --git a/src/com/android/launcher3/util/WindowManagerCompat.java b/src/com/android/launcher3/util/WindowManagerCompat.java
index 38a63de..bfdf1e4 100644
--- a/src/com/android/launcher3/util/WindowManagerCompat.java
+++ b/src/com/android/launcher3/util/WindowManagerCompat.java
@@ -24,6 +24,7 @@
 import android.graphics.Insets;
 import android.graphics.Rect;
 import android.os.Build;
+import android.util.ArraySet;
 import android.view.WindowInsets;
 import android.view.WindowInsets.Type;
 import android.view.WindowManager;
@@ -31,14 +32,14 @@
 
 import com.android.launcher3.R;
 import com.android.launcher3.ResourceUtils;
+import com.android.launcher3.Utilities;
 import com.android.launcher3.util.DisplayController.PortraitSize;
 
-import java.util.Collection;
-import java.util.HashSet;
+import java.util.Collections;
 import java.util.Set;
 
 /**
- * Utility class to simulate window manager APIs until proper APIs are available
+ * Utility class to estimate window manager values
  */
 @TargetApi(Build.VERSION_CODES.S)
 public class WindowManagerCompat {
@@ -46,51 +47,51 @@
     public static final int MIN_TABLET_WIDTH = 600;
 
     /**
-     * Returns a set of supported render sizes for a set of internal displays.
-     * This is a temporary workaround which assumes only nav-bar insets change across displays
+     * Returns a set of supported render sizes for a internal display.
+     * This is a temporary workaround which assumes only nav-bar insets change across displays, and
+     * is only used until we eventually get the real values
      * @param consumeTaskBar if true, it assumes that task bar is part of the app window
      *                       and ignores any insets because of task bar.
      */
-    public static Set<WindowMetrics> getDisplayProfiles(
-            Context windowContext, Collection<PortraitSize> allDisplaySizes,
-            int densityDpi, boolean consumeTaskBar) {
-        WindowInsets metrics = windowContext.getSystemService(WindowManager.class)
+    public static Set<WindowBounds> estimateDisplayProfiles(
+            Context windowContext, PortraitSize size, int densityDpi, boolean consumeTaskBar) {
+        if (!Utilities.ATLEAST_S) {
+            return Collections.emptySet();
+        }
+        WindowInsets defaultInsets = windowContext.getSystemService(WindowManager.class)
                 .getMaximumWindowMetrics().getWindowInsets();
         boolean hasNavbar = ResourceUtils.getIntegerByName(
                 "config_navBarInteractionMode",
                 windowContext.getResources(),
                 INVALID_RESOURCE_HANDLE) != 0;
 
-        WindowInsets.Builder insetsBuilder = new WindowInsets.Builder(metrics);
+        WindowInsets.Builder insetsBuilder = new WindowInsets.Builder(defaultInsets);
+        Set<WindowBounds> result = new ArraySet<>();
+        int swDP = (int) dpiFromPx(size.width, densityDpi);
+        boolean isTablet = swDP >= MIN_TABLET_WIDTH;
 
-        Set<WindowMetrics> result = new HashSet<>();
-        for (PortraitSize size : allDisplaySizes) {
-            int swDP = (int) dpiFromPx(size.width, densityDpi);
-            boolean isTablet = swDP >= MIN_TABLET_WIDTH;
-
-            final Insets portraitNav, landscapeNav;
-            if (isTablet && !consumeTaskBar) {
-                portraitNav = landscapeNav = Insets.of(0, 0, 0, windowContext.getResources()
-                        .getDimensionPixelSize(R.dimen.taskbar_size));
-            } else if (hasNavbar) {
-                portraitNav = Insets.of(0, 0, 0,
-                        getSystemResource(windowContext, "navigation_bar_height", swDP));
-                landscapeNav = isTablet
-                        ? Insets.of(0, 0, 0, getSystemResource(windowContext,
-                                "navigation_bar_height_landscape", swDP))
-                        : Insets.of(0, 0, getSystemResource(windowContext,
-                                "navigation_bar_width", swDP), 0);
-            } else {
-                portraitNav = landscapeNav = Insets.of(0, 0, 0, 0);
-            }
-
-            result.add(new WindowMetrics(
-                    new Rect(0, 0, size.width, size.height),
-                    insetsBuilder.setInsets(Type.navigationBars(), portraitNav).build()));
-            result.add(new WindowMetrics(
-                    new Rect(0, 0, size.height, size.width),
-                    insetsBuilder.setInsets(Type.navigationBars(), landscapeNav).build()));
+        final Insets portraitNav, landscapeNav;
+        if (isTablet && !consumeTaskBar) {
+            portraitNav = landscapeNav = Insets.of(0, 0, 0, windowContext.getResources()
+                    .getDimensionPixelSize(R.dimen.taskbar_size));
+        } else if (hasNavbar) {
+            portraitNav = Insets.of(0, 0, 0,
+                    getSystemResource(windowContext, "navigation_bar_height", swDP));
+            landscapeNav = isTablet
+                    ? Insets.of(0, 0, 0, getSystemResource(windowContext,
+                            "navigation_bar_height_landscape", swDP))
+                    : Insets.of(0, 0, getSystemResource(windowContext,
+                            "navigation_bar_width", swDP), 0);
+        } else {
+            portraitNav = landscapeNav = Insets.of(0, 0, 0, 0);
         }
+
+        result.add(WindowBounds.fromWindowMetrics(new WindowMetrics(
+                new Rect(0, 0, size.width, size.height),
+                insetsBuilder.setInsets(Type.navigationBars(), portraitNav).build())));
+        result.add(WindowBounds.fromWindowMetrics(new WindowMetrics(
+                new Rect(0, 0, size.height, size.width),
+                insetsBuilder.setInsets(Type.navigationBars(), landscapeNav).build())));
         return result;
     }
 
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/ApiWrapper.java b/src_ui_overrides/com/android/launcher3/uioverrides/ApiWrapper.java
index cc90e6c..81e3f98 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/ApiWrapper.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/ApiWrapper.java
@@ -39,6 +39,13 @@
     }
 
     /**
+     * Returns a unique ID representing the display
+     */
+    public static String getUniqueId(Display display) {
+        return Integer.toString(display.getDisplayId());
+    }
+
+    /**
      * Returns the minimum space that should be left empty at the end of hotseat
      */
     public static int getHotseatEndOffset(Context context) {
diff --git a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
index f1fe508..e3f35e1 100644
--- a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
+++ b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
@@ -1550,7 +1550,7 @@
         try {
             return object.getVisibleBounds();
         } catch (StaleObjectException e) {
-            fail("Object " + object + " disappeared from screen");
+            fail("Object disappeared from screen");
             return null;
         } catch (Throwable t) {
             fail(t.toString());