diff --git a/Android.bp b/Android.bp
index 0575602..7c78ba8 100644
--- a/Android.bp
+++ b/Android.bp
@@ -13,24 +13,12 @@
 // limitations under the License.
 
 package {
-    default_applicable_licenses: ["packages_apps_Launcher3_license"],
+    // See: http://go/android-license-faq
+    default_applicable_licenses: ["Android-Apache-2.0"],
 }
 
 min_launcher3_sdk_version = "26"
 
-// Added automatically by a large-scale-change
-// See: http://go/android-license-faq
-license {
-    name: "packages_apps_Launcher3_license",
-    visibility: [":__subpackages__"],
-    license_kinds: [
-        "SPDX-license-identifier-Apache-2.0",
-    ],
-    license_text: [
-        "NOTICE",
-    ],
-}
-
 android_library {
     name: "launcher-aosp-tapl",
     libs: [
diff --git a/Android.mk b/Android.mk
index ceaaf13..1bc8b28 100644
--- a/Android.mk
+++ b/Android.mk
@@ -49,7 +49,8 @@
 LOCAL_JACK_COVERAGE_INCLUDE_FILTER := com.android.launcher3.*
 LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
 LOCAL_LICENSE_CONDITIONS := notice
-LOCAL_NOTICE_FILE := $(LOCAL_PATH)/NOTICE
+LOCAL_LICENSE_PACKAGE_NAME := Android Launcher3
+LOCAL_NOTICE_FILE := build/soong/licenses/LICENSE
 include $(BUILD_PACKAGE)
 
 #
@@ -85,7 +86,8 @@
 
 LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
 LOCAL_LICENSE_CONDITIONS := notice
-LOCAL_NOTICE_FILE := $(LOCAL_PATH)/NOTICE
+LOCAL_LICENSE_PACKAGE_NAME := Android Launcher3
+LOCAL_NOTICE_FILE := build/soong/licenses/LICENSE
 include $(BUILD_PACKAGE)
 
 
@@ -136,7 +138,8 @@
 LOCAL_JACK_COVERAGE_INCLUDE_FILTER := com.android.launcher3.*
 LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
 LOCAL_LICENSE_CONDITIONS := notice
-LOCAL_NOTICE_FILE := $(LOCAL_PATH)/NOTICE
+LOCAL_LICENSE_PACKAGE_NAME := Android Launcher3
+LOCAL_NOTICE_FILE := build/soong/licenses/LICENSE
 include $(BUILD_PACKAGE)
 
 
diff --git a/NOTICE b/NOTICE
deleted file mode 100644
index c5b1efa..0000000
--- a/NOTICE
+++ /dev/null
@@ -1,190 +0,0 @@
-
-   Copyright (c) 2005-2008, The Android Open Source Project
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-
-   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.
-
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
-
-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
-      copyright notice that is included in or attached to the work
-      (an example is provided in the Appendix below).
-
-      "Derivative Works" shall mean any work, whether in Source or Object
-      form, that is based on (or derived from) the Work and for which the
-      editorial revisions, annotations, elaborations, or other modifications
-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
-
-      "Contribution" shall mean any work of authorship, including
-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
-      submitted to Licensor for inclusion in the Work by the copyright owner
-      or by an individual or Legal Entity authorized to submit on behalf of
-      the copyright owner. For the purposes of this definition, "submitted"
-      means any form of electronic, verbal, or written communication sent
-      to the Licensor or its representatives, including but not limited to
-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
-      excluding communication that is conspicuously marked or otherwise
-      designated in writing by the copyright owner as "Not a Contribution."
-
-      "Contributor" shall mean Licensor and any individual or Legal Entity
-      on behalf of whom a Contribution has been received by Licensor and
-      subsequently incorporated within the Work.
-
-   2. Grant of Copyright License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      copyright license to reproduce, prepare Derivative Works of,
-      publicly display, publicly perform, sublicense, and distribute the
-      Work and such Derivative Works in Source or Object form.
-
-   3. Grant of Patent License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      (except as stated in this section) patent license to make, have made,
-      use, offer to sell, sell, import, and otherwise transfer the Work,
-      where such license applies only to those patent claims licensable
-      by such Contributor that are necessarily infringed by their
-      Contribution(s) alone or by combination of their Contribution(s)
-      with the Work to which such Contribution(s) was submitted. If You
-      institute patent litigation against any entity (including a
-      cross-claim or counterclaim in a lawsuit) alleging that the Work
-      or a Contribution incorporated within the Work constitutes direct
-      or contributory patent infringement, then any patent licenses
-      granted to You under this License for that Work shall terminate
-      as of the date such litigation is filed.
-
-   4. Redistribution. You may reproduce and distribute copies of the
-      Work or Derivative Works thereof in any medium, with or without
-      modifications, and in Source or Object form, provided that You
-      meet the following conditions:
-
-      (a) You must give any other recipients of the Work or
-          Derivative Works a copy of this License; and
-
-      (b) You must cause any modified files to carry prominent notices
-          stating that You changed the files; and
-
-      (c) You must retain, in the Source form of any Derivative Works
-          that You distribute, all copyright, patent, trademark, and
-          attribution notices from the Source form of the Work,
-          excluding those notices that do not pertain to any part of
-          the Derivative Works; and
-
-      (d) If the Work includes a "NOTICE" text file as part of its
-          distribution, then any Derivative Works that You distribute must
-          include a readable copy of the attribution notices contained
-          within such NOTICE file, excluding those notices that do not
-          pertain to any part of the Derivative Works, in at least one
-          of the following places: within a NOTICE text file distributed
-          as part of the Derivative Works; within the Source form or
-          documentation, if provided along with the Derivative Works; or,
-          within a display generated by the Derivative Works, if and
-          wherever such third-party notices normally appear. The contents
-          of the NOTICE file are for informational purposes only and
-          do not modify the License. You may add Your own attribution
-          notices within Derivative Works that You distribute, alongside
-          or as an addendum to the NOTICE text from the Work, provided
-          that such additional attribution notices cannot be construed
-          as modifying the License.
-
-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-      implied, including, without limitation, any warranties or conditions
-      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
-
-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
diff --git a/quickstep/Android.bp b/quickstep/Android.bp
index 7b3e6c4..70b1438 100644
--- a/quickstep/Android.bp
+++ b/quickstep/Android.bp
@@ -14,11 +14,7 @@
 
 package {
     // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "packages_apps_Launcher3_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["packages_apps_Launcher3_license"],
+    default_applicable_licenses: ["Android-Apache-2.0"],
 }
 
 filegroup {
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarAllAppsViewController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarAllAppsViewController.java
index 0b53cc2..62125fe 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarAllAppsViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarAllAppsViewController.java
@@ -15,7 +15,6 @@
  */
 package com.android.launcher3.taskbar;
 
-import com.android.launcher3.R;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.model.data.AppInfo;
 
@@ -41,9 +40,6 @@
 
         mAppsView.setOnIconLongClickListener(
                 controllers.taskbarDragController::startDragOnLongClick);
-
-        // TODO(b/205803230): Remove once entry point button is implemented.
-        mContext.getDragLayer().findViewById(R.id.taskbar_view).setOnClickListener(v -> show());
     }
 
     /** Binds the current {@link AppInfo} instances to the {@link TaskbarAllAppsContainerView}. */
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
index c8d9fca..fddd1ed 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
@@ -22,6 +22,7 @@
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.ViewGroup;
 import android.widget.FrameLayout;
 
 import androidx.annotation.LayoutRes;
@@ -31,6 +32,7 @@
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.Insettable;
 import com.android.launcher3.R;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.folder.FolderIcon;
 import com.android.launcher3.model.data.FolderInfo;
 import com.android.launcher3.model.data.ItemInfo;
@@ -38,6 +40,7 @@
 import com.android.launcher3.uioverrides.ApiWrapper;
 import com.android.launcher3.util.LauncherBindableItemsContainer;
 import com.android.launcher3.views.ActivityContext;
+import com.android.launcher3.views.AllAppsButton;
 
 /**
  * Hosts the Taskbar content such as Hotseat and Recent Apps. Drawn on top of other apps.
@@ -64,6 +67,9 @@
     // Only non-null when the corresponding Folder is open.
     private @Nullable FolderIcon mLeaveBehindFolderIcon;
 
+    // Only non-null when device supports having an All Apps button.
+    private @Nullable AllAppsButton mAllAppsButton;
+
     public TaskbarView(@NonNull Context context) {
         this(context, null);
     }
@@ -94,6 +100,13 @@
 
         // Needed to draw folder leave-behind when opening one.
         setWillNotDraw(false);
+
+        if (FeatureFlags.ENABLE_ALL_APPS_IN_TASKBAR.get()) {
+            mAllAppsButton = new AllAppsButton(context);
+            mAllAppsButton.setLayoutParams(
+                    new ViewGroup.LayoutParams(mIconTouchSize, mIconTouchSize));
+            mAllAppsButton.setPadding(mItemPadding, mItemPadding, mItemPadding, mItemPadding);
+        }
     }
 
     protected void init(TaskbarViewController.TaskbarViewCallbacks callbacks) {
@@ -102,6 +115,10 @@
         mIconLongClickListener = mControllerCallbacks.getIconOnLongClickListener();
 
         setOnLongClickListener(mControllerCallbacks.getBackgroundOnLongClickListener());
+
+        if (mAllAppsButton != null) {
+            mAllAppsButton.setOnClickListener(mControllerCallbacks.getAllAppsButtonClickListener());
+        }
     }
 
     private void removeAndRecycle(View view) {
@@ -121,6 +138,10 @@
         int nextViewIndex = 0;
         int numViewsAnimated = 0;
 
+        if (mAllAppsButton != null) {
+            removeView(mAllAppsButton);
+        }
+
         for (int i = 0; i < hotseatItemInfos.length; i++) {
             ItemInfo hotseatItemInfo = hotseatItemInfos[i];
             if (hotseatItemInfo == null) {
@@ -191,6 +212,10 @@
         while (nextViewIndex < getChildCount()) {
             removeAndRecycle(getChildAt(nextViewIndex));
         }
+
+        if (mAllAppsButton != null) {
+            addView(mAllAppsButton);
+        }
     }
 
     /**
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
index 0508994..778040d 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
@@ -22,6 +22,7 @@
 
 import android.graphics.Rect;
 import android.util.FloatProperty;
+import android.util.Log;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewTreeObserver;
@@ -33,6 +34,7 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.anim.PendingAnimation;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.folder.FolderIcon;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.util.LauncherBindableItemsContainer;
@@ -45,6 +47,9 @@
  * Handles properties/data collection, then passes the results to TaskbarView to render.
  */
 public class TaskbarViewController implements TaskbarControllers.LoggableTaskbarController {
+
+    private static final String TAG = TaskbarViewController.class.getSimpleName();
+
     private static final Runnable NO_OP = () -> { };
 
     public static final int ALPHA_INDEX_HOME = 0;
@@ -225,14 +230,29 @@
         int count = mTaskbarView.getChildCount();
         for (int i = 0; i < count; i++) {
             View child = mTaskbarView.getChildAt(i);
-            ItemInfo info = (ItemInfo) child.getTag();
-            setter.setFloat(child, SCALE_PROPERTY, scaleUp, LINEAR);
+
+            int positionInHotseat = -1;
+            if (FeatureFlags.ENABLE_ALL_APPS_IN_TASKBAR.get() && i == count - 1) {
+                // Note that there is no All Apps button in the hotseat, this position is only used
+                // as its convenient for animation purposes.
+                positionInHotseat = mActivity.getDeviceProfile().inv.numShownHotseatIcons;
+
+                setter.setViewAlpha(child, 0, LINEAR);
+            } else if (child.getTag() instanceof ItemInfo) {
+                positionInHotseat = ((ItemInfo) child.getTag()).screenId;
+            } else {
+                Log.w(TAG, "Unsupported view found in createIconAlignmentController, v=" + child);
+                continue;
+            }
+
+            float hotseatIconCenter = hotseatPadding.left
+                    + (hotseatCellSize + borderSpacing) * positionInHotseat
+                    + hotseatCellSize / 2;
 
             float childCenter = (child.getLeft() + child.getRight()) / 2;
-            float hotseatIconCenter = hotseatPadding.left
-                    + (hotseatCellSize + borderSpacing) * info.screenId
-                    + hotseatCellSize / 2;
             setter.setFloat(child, ICON_TRANSLATE_X, hotseatIconCenter - childCenter, LINEAR);
+
+            setter.setFloat(child, SCALE_PROPERTY, scaleUp, LINEAR);
         }
 
         AnimatorPlaybackController controller = setter.createPlaybackController();
@@ -279,6 +299,10 @@
             return mActivity.getItemOnClickListener();
         }
 
+        public View.OnClickListener getAllAppsButtonClickListener() {
+            return v -> mControllers.taskbarAllAppsViewController.show();
+        }
+
         public View.OnLongClickListener getIconOnLongClickListener() {
             return mControllers.taskbarDragController::startDragOnLongClick;
         }
diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
index b4917f3..e3198a8 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
@@ -21,6 +21,7 @@
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
+import static org.junit.Assume.assumeTrue;
 
 import android.content.Intent;
 
@@ -37,7 +38,6 @@
 import com.android.launcher3.tapl.Overview;
 import com.android.launcher3.tapl.OverviewActions;
 import com.android.launcher3.tapl.OverviewTask;
-import com.android.launcher3.tapl.TestHelpers;
 import com.android.launcher3.ui.TaplTestsLauncher3;
 import com.android.launcher3.util.rule.ScreenRecordRule.ScreenRecord;
 import com.android.quickstep.NavigationModeSwitchRule.NavigationModeSwitch;
@@ -322,10 +322,8 @@
     @Test
     @PortraitLandscape
     public void testOverviewForTablet() throws Exception {
-        // TODO(b/210158657): Re-enable for OOP
-        if (!mLauncher.isTablet() || !TestHelpers.isInLauncherProcess()) {
-            return;
-        }
+        assumeTrue(mLauncher.isTablet());
+
         for (int i = 2; i <= 14; i++) {
             startTestActivity(i);
         }
diff --git a/res/drawable/ic_all_apps_button.xml b/res/drawable/ic_all_apps_button.xml
new file mode 100644
index 0000000..52b919b
--- /dev/null
+++ b/res/drawable/ic_all_apps_button.xml
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2022 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="80dp"
+    android:height="80dp"
+    android:viewportWidth="80"
+    android:viewportHeight="80">
+  <path
+      android:pathData="M40,0.5L40,0.5c21.8,0 39.5,17.7 39.5,39.5l0,0c0,21.8 -17.7,39.5 -39.5,39.5l0,0C18.2,79.5 0.5,61.8 0.5,40l0,0C0.5,18.2 18.2,0.5 40,0.5z"
+      android:fillColor="#F7F9FA"/>
+  <path
+      android:pathData="M26.8,32.1m-5.3,0a5.3,5.3 0,1 1,10.6 0a5.3,5.3 0,1 1,-10.6 0"
+      android:fillColor="#00677E"/>
+  <path
+      android:pathData="M26.8,47.9m-5.3,0a5.3,5.3 0,1 1,10.6 0a5.3,5.3 0,1 1,-10.6 0"
+      android:fillColor="#5F757E"/>
+  <path
+      android:pathData="M40,32.1m-5.3,0a5.3,5.3 0,1 1,10.6 0a5.3,5.3 0,1 1,-10.6 0"
+      android:fillColor="#5F757E"/>
+  <path
+      android:pathData="M40,47.9m-5.3,0a5.3,5.3 0,1 1,10.6 0a5.3,5.3 0,1 1,-10.6 0"
+      android:fillColor="#6C6F93"/>
+  <path
+      android:pathData="M53.2,32.1m-5.3,0a5.3,5.3 0,1 1,10.6 0a5.3,5.3 0,1 1,-10.6 0"
+      android:fillColor="#005A6E"/>
+  <path
+      android:pathData="M53.2,47.9m-5.3,0a5.3,5.3 0,1 1,10.6 0a5.3,5.3 0,1 1,-10.6 0"
+      android:fillColor="#5F757E"/>
+</vector>
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index 0b168a5..a381787 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -135,7 +135,7 @@
     /**
      * Number of icons inside the hotseat area.
      */
-    protected int numShownHotseatIcons;
+    public int numShownHotseatIcons;
 
     /**
      * Number of icons inside the hotseat area that is stored in the database. This is greater than
diff --git a/src/com/android/launcher3/model/FirstScreenBroadcast.java b/src/com/android/launcher3/model/FirstScreenBroadcast.java
index e391d37..5fac7cf 100644
--- a/src/com/android/launcher3/model/FirstScreenBroadcast.java
+++ b/src/com/android/launcher3/model/FirstScreenBroadcast.java
@@ -135,6 +135,13 @@
             printList(installerPackageName, "Widget item", widgetItems);
         }
 
+        if (folderItems.isEmpty()
+                && workspaceItems.isEmpty()
+                && hotseatItems.isEmpty()
+                && widgetItems.isEmpty()) {
+            // Avoid sending broadcast if there is nothing to send.
+            return;
+        }
         context.sendBroadcast(new Intent(ACTION_FIRST_SCREEN_ACTIVE_INSTALLS)
                 .setPackage(installerPackageName)
                 .putStringArrayListExtra(FOLDER_ITEM_EXTRA, new ArrayList<>(folderItems))
diff --git a/src/com/android/launcher3/views/AllAppsButton.java b/src/com/android/launcher3/views/AllAppsButton.java
new file mode 100644
index 0000000..f502d46
--- /dev/null
+++ b/src/com/android/launcher3/views/AllAppsButton.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.views;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.util.AttributeSet;
+
+import com.android.launcher3.BubbleTextView;
+import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.R;
+import com.android.launcher3.icons.FastBitmapDrawable;
+
+/**
+ * Button in Taskbar that opens All Apps.
+ */
+public class AllAppsButton extends BubbleTextView {
+
+    public AllAppsButton(Context context) {
+        this(context, null);
+    }
+
+    public AllAppsButton(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public AllAppsButton(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+
+        Bitmap bitmap = LauncherAppState.getInstance(context).getIconCache().getIconFactory()
+                .createScaledBitmapWithShadow(context.getDrawable(R.drawable.ic_all_apps_button));
+        setIcon(new FastBitmapDrawable(bitmap));
+    }
+}
diff --git a/tests/Android.bp b/tests/Android.bp
index f3e0500..c2c545b 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -11,13 +11,10 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+
 package {
     // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "packages_apps_Launcher3_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["packages_apps_Launcher3_license"],
+    default_applicable_licenses: ["Android-Apache-2.0"],
 }
 
 // Source code used for test
@@ -46,6 +43,7 @@
       "src/com/android/launcher3/util/rule/TestStabilityRule.java",
       "src/com/android/launcher3/ui/TaplTestsLauncher3.java",
       "src/com/android/launcher3/testcomponent/BaseTestingActivity.java",
+      "src/com/android/launcher3/testcomponent/OtherBaseTestingActivity.java",
       "src/com/android/launcher3/testcomponent/CustomShortcutConfigActivity.java",
       "src/com/android/launcher3/testcomponent/TestCommandReceiver.java",
       "src/com/android/launcher3/testcomponent/TestLauncherActivity.java",
diff --git a/tests/dummy_app/Android.bp b/tests/dummy_app/Android.bp
index 4f83bb7..08ce2f7 100644
--- a/tests/dummy_app/Android.bp
+++ b/tests/dummy_app/Android.bp
@@ -15,7 +15,8 @@
 //
 
 package {
-    default_applicable_licenses:   ["packages_apps_Launcher3_license"],
+    // See: http://go/android-license-faq
+    default_applicable_licenses: ["Android-Apache-2.0"],
 }
 
 android_app {