diff --git a/quickstep/src/com/android/launcher3/uioverrides/DeviceFlag.java b/quickstep/src/com/android/launcher3/uioverrides/DeviceFlag.java
index 010694b..bb1f6fc 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/DeviceFlag.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/DeviceFlag.java
@@ -60,6 +60,14 @@
         mListeners.add(r);
     }
 
+    @Override
+    public void removeChangeListener(Runnable r) {
+        if (mListeners == null) {
+            return;
+        }
+        mListeners.remove(r);
+    }
+
     private void registerDeviceConfigChangedListener(Context context) {
         DeviceConfig.addOnPropertiesChangedListener(
                 NAMESPACE_LAUNCHER,
diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index feeee50..7a259d4 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -1746,7 +1746,9 @@
         if (mWindowTransitionController != null) {
             mWindowTransitionController.setProgress(mCurrentShift.value, mDragLengthFactor);
         }
-        if (mRecentsAnimationTargets != null) {
+        // No need to apply any transform if there is ongoing swipe-pip-to-home animator since
+        // that animator handles the leash solely.
+        if (mRecentsAnimationTargets != null && !mIsSwipingPipToHome) {
             if (mRecentsViewScrollLinked) {
                 mTaskViewSimulator.setScroll(mRecentsView.getScrollOffset());
             }
diff --git a/quickstep/tests/src/com/android/quickstep/NavigationModeSwitchRule.java b/quickstep/tests/src/com/android/quickstep/NavigationModeSwitchRule.java
index 35383d2..67840d1 100644
--- a/quickstep/tests/src/com/android/quickstep/NavigationModeSwitchRule.java
+++ b/quickstep/tests/src/com/android/quickstep/NavigationModeSwitchRule.java
@@ -200,8 +200,8 @@
                 () -> launcher.getNavigationModel() == expectedMode, WAIT_TIME_MS, launcher);
 
         Wait.atMost(() -> "Switching nav mode: "
-                        + launcher.getNavigationModeMismatchError(),
-                () -> launcher.getNavigationModeMismatchError() == null,
+                        + launcher.getNavigationModeMismatchError(false),
+                () -> launcher.getNavigationModeMismatchError(false) == null,
                 WAIT_TIME_MS, launcher);
         AbstractLauncherUiTest.checkDetectedLeaks(launcher);
         return true;
diff --git a/res/drawable/bg_widgets_searchbox.xml b/res/drawable/bg_widgets_searchbox.xml
new file mode 100644
index 0000000..81dd2aa
--- /dev/null
+++ b/res/drawable/bg_widgets_searchbox.xml
@@ -0,0 +1,19 @@
+<?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.
+-->
+<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
+    <solid android:color="#FFFFF7" />
+    <corners android:radius="24dp" />
+</shape>
\ No newline at end of file
diff --git a/res/layout/live_preview_widget_cell.xml b/res/layout/live_preview_widget_cell.xml
index 7a42d19..1e1ce6e 100644
--- a/res/layout/live_preview_widget_cell.xml
+++ b/res/layout/live_preview_widget_cell.xml
@@ -15,14 +15,16 @@
 -->
 <com.android.launcher3.dragndrop.LivePreviewWidgetCell
     xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="wrap_content"
+    android:layout_width="0dp"
     android:layout_height="wrap_content"
+    android:paddingHorizontal="@dimen/widget_cell_horizontal_padding"
+    android:paddingVertical="@dimen/widget_cell_vertical_padding"
     android:layout_weight="1"
     android:orientation="vertical"
     android:focusable="true"
     android:background="?android:attr/colorPrimaryDark"
     android:gravity="center_horizontal">
 
-    <include layout="@layout/widget_cell_content"  />
+    <include layout="@layout/widget_cell_content" />
 
 </com.android.launcher3.dragndrop.LivePreviewWidgetCell>
\ No newline at end of file
diff --git a/res/layout/personal_work_tabs.xml b/res/layout/personal_work_tabs.xml
index 8f29997..5fb5bcb 100644
--- a/res/layout/personal_work_tabs.xml
+++ b/res/layout/personal_work_tabs.xml
@@ -23,6 +23,7 @@
     android:layout_marginLeft="@dimen/all_apps_tabs_side_padding"
     android:layout_marginRight="@dimen/all_apps_tabs_side_padding"
     android:orientation="horizontal"
+    android:elevation="2dp"
     style="@style/TextHeadline">
 
     <Button
diff --git a/res/layout/widget_cell.xml b/res/layout/widget_cell.xml
index 148a99b..73a5737 100644
--- a/res/layout/widget_cell.xml
+++ b/res/layout/widget_cell.xml
@@ -15,8 +15,10 @@
 -->
 <com.android.launcher3.widget.WidgetCell
     xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="wrap_content"
+    android:layout_width="0dp"
     android:layout_height="wrap_content"
+    android:paddingHorizontal="@dimen/widget_cell_horizontal_padding"
+    android:paddingVertical="@dimen/widget_cell_vertical_padding"
     android:layout_weight="1"
     android:orientation="vertical"
     android:focusable="true"
diff --git a/res/layout/widget_cell_content.xml b/res/layout/widget_cell_content.xml
index 64f2362..c3e37e9 100644
--- a/res/layout/widget_cell_content.xml
+++ b/res/layout/widget_cell_content.xml
@@ -17,47 +17,37 @@
     android:layout_width="wrap_content"
     android:layout_height="wrap_content">
 
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:paddingTop="@dimen/widget_preview_label_vertical_padding"
-        android:paddingBottom="@dimen/widget_preview_label_vertical_padding"
-        android:paddingLeft="@dimen/widget_preview_label_horizontal_padding"
-        android:paddingRight="@dimen/widget_preview_label_horizontal_padding"
-        android:orientation="horizontal">
-
-        <!-- The name of the widget. -->
-        <TextView
-            android:id="@+id/widget_name"
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:ellipsize="end"
-            android:fadingEdge="horizontal"
-            android:gravity="start"
-            android:singleLine="true"
-            android:maxLines="1"
-            android:textColor="?android:attr/textColorSecondary"
-            android:textSize="14sp" />
-
-        <!-- The original dimensions of the widget (can't be the same text as above due to different
-             style. -->
-        <TextView
-            android:id="@+id/widget_dims"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_marginStart="5dp"
-            android:layout_marginLeft="5dp"
-            android:textColor="?android:attr/textColorSecondary"
-            android:textSize="14sp"
-            android:alpha="0.8" />
-    </LinearLayout>
-
     <!-- The image of the widget. This view does not support padding. Any placement adjustment
          should be done using margins. -->
     <com.android.launcher3.widget.WidgetImageView
         android:id="@+id/widget_preview"
-        android:layout_width="match_parent"
+        android:layout_width="wrap_content"
         android:layout_height="0dp"
-        android:layout_weight="1" />
+        android:layout_weight="1"
+        android:layout_marginVertical="8dp" />
+
+    <!-- The name of the widget. -->
+    <TextView
+        android:id="@+id/widget_name"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:ellipsize="end"
+        android:fadingEdge="horizontal"
+        android:gravity="center_horizontal"
+        android:singleLine="true"
+        android:maxLines="1"
+        android:textColor="?android:attr/textColorSecondary"
+        android:textSize="14sp" />
+
+    <!-- The original dimensions of the widget (can't be the same text as above due to different
+         style. -->
+    <TextView
+        android:id="@+id/widget_dims"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center_horizontal"
+        android:textColor="?android:attr/textColorSecondary"
+        android:textSize="14sp"
+        android:alpha="0.8" />
+
 </merge>
\ No newline at end of file
diff --git a/res/layout/widgets_bottom_sheet.xml b/res/layout/widgets_bottom_sheet.xml
index 3fdfc96..c1b2cbf 100644
--- a/res/layout/widgets_bottom_sheet.xml
+++ b/res/layout/widgets_bottom_sheet.xml
@@ -44,11 +44,16 @@
         android:textSize="14sp"
         android:text="@string/long_press_widget_to_add"/>
 
-    <include layout="@layout/widgets_scroll_container"
-         android:id="@+id/widgets"
-         android:layout_width="wrap_content"
-         android:layout_height="wrap_content"
-         android:layout_marginTop="45dp"
-         android:layout_marginBottom="40dp"/>
+    <ScrollView
+        android:id="@+id/widgets_table_scroll_view"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="45dp"
+        android:layout_marginBottom="40dp">
+        <include layout="@layout/widgets_table_container"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal" />
+    </ScrollView>
 
 </com.android.launcher3.widget.WidgetsBottomSheet>
\ No newline at end of file
diff --git a/res/layout/widgets_full_sheet_paged_view.xml b/res/layout/widgets_full_sheet_paged_view.xml
index cfbb6dd..8125db8 100644
--- a/res/layout/widgets_full_sheet_paged_view.xml
+++ b/res/layout/widgets_full_sheet_paged_view.xml
@@ -16,13 +16,15 @@
 <merge xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:launcher="http://schemas.android.com/apk/res-auto">
 
-    <include layout="@layout/personal_work_tabs" />
+    <include layout="@layout/personal_work_tabs"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="16dp" />
 
     <com.android.launcher3.workprofile.PersonalWorkPagedView
         android:id="@+id/widgets_view_pager"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:layout_below="@+id/tabs"
         android:clipToPadding="false"
         android:descendantFocusability="afterDescendants"
         launcher:pageIndicator="@+id/tabs">
diff --git a/res/layout/widgets_full_sheet_search_and_recommendations.xml b/res/layout/widgets_full_sheet_search_and_recommendations.xml
new file mode 100644
index 0000000..9a6f922
--- /dev/null
+++ b/res/layout/widgets_full_sheet_search_and_recommendations.xml
@@ -0,0 +1,49 @@
+<?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.
+-->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/search_and_recommendations_container"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="16dp"
+    android:orientation="vertical">
+    <View
+        android:id="@+id/collapse_handle"
+        android:layout_width="48dp"
+        android:layout_height="2dp"
+        android:layout_gravity="center_horizontal"
+        android:background="@color/popup_color_primary_dark"/>
+    <TextView
+        android:id="@+id/title"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center_horizontal"
+        android:textSize="24sp"
+        android:layout_marginTop="16dp"
+        android:text="@string/widget_button_text"/>
+    <!-- Disable the search bar because it has not been implemented. -->
+    <EditText
+        android:id="@+id/widgets_search_bar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:visibility="gone"
+        android:layout_marginTop="16dp"
+        android:background="@drawable/bg_widgets_searchbox"
+        android:drawablePadding="8dp"
+        android:drawableStart="@drawable/ic_allapps_search"
+        android:hint="@string/widgets_full_sheet_search_bar_hint"
+        android:padding="12dp" />
+</LinearLayout>
diff --git a/res/layout/widgets_table_container.xml b/res/layout/widgets_table_container.xml
index ffa239a..c4dfe7e 100644
--- a/res/layout/widgets_table_container.xml
+++ b/res/layout/widgets_table_container.xml
@@ -18,4 +18,5 @@
     android:id="@+id/widgets_table"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:layout_marginHorizontal="8dp"
     android:background="?android:attr/colorPrimaryDark" />
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index acc6466..5f78192 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -102,8 +102,8 @@
     <dimen name="work_profile_footer_text_size">16sp</dimen>
 
 <!-- Widget tray -->
-    <dimen name="widget_preview_label_vertical_padding">8dp</dimen>
-    <dimen name="widget_preview_label_horizontal_padding">16dp</dimen>
+    <dimen name="widget_cell_vertical_padding">8dp</dimen>
+    <dimen name="widget_cell_horizontal_padding">16dp</dimen>
 
     <dimen name="widget_preview_shadow_blur">0.5dp</dimen>
     <dimen name="widget_preview_key_shadow_distance">1dp</dimen>
@@ -183,13 +183,11 @@
     <dimen name="popup_padding_start">10dp</dimen>
     <dimen name="popup_padding_end">16dp</dimen>
     <dimen name="popup_vertical_padding">4dp</dimen>
-    <dimen name="popup_arrow_width">10dp</dimen>
-    <dimen name="popup_arrow_height">8dp</dimen>
-    <dimen name="popup_arrow_vertical_offset">-2dp</dimen>
+    <dimen name="popup_arrow_width">12dp</dimen>
+    <dimen name="popup_arrow_height">10dp</dimen>
+    <dimen name="popup_arrow_vertical_offset">-1dp</dimen>
     <!-- popup_padding_start + deep_shortcut_icon_size / 2 -->
-    <dimen name="popup_arrow_horizontal_center_start">28dp</dimen>
-    <!-- popup_padding_end + deep_shortcut_drag_handle_size / 2 -->
-    <dimen name="popup_arrow_horizontal_center_end">24dp</dimen>
+    <dimen name="popup_arrow_horizontal_center_offset">28dp</dimen>
     <dimen name="popup_arrow_corner_radius">2dp</dimen>
     <!-- popup_padding_start + icon_size + 10dp -->
     <dimen name="deep_shortcuts_text_padding_start">56dp</dimen>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 5a9def7..73f9e53 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -57,6 +57,12 @@
         <item quantity="one"><xliff:g id="widget_count" example="1">%1$d</xliff:g> widget</item>
         <item quantity="other"><xliff:g id="widget_count" example="2">%1$d</xliff:g> widgets</item>
     </plurals>
+    <!-- Text for both the tile of a popup view, which shows all available widgets installed on
+         the device, and the text of a button, which opens this popup view. [CHAR LIMIT=30]-->
+    <string name="widget_button_text">Widgets</string>
+    <!-- Search bar text shown in the popup view showing all available widgets installed on the
+         device. [CHAR_LIMIT=50] -->
+    <string name="widgets_full_sheet_search_bar_hint">Search</string>
 
     <!-- All Apps -->
     <!-- Search bar text in the apps view. [CHAR_LIMIT=50] -->
@@ -185,8 +191,6 @@
     <string name="folder_name_format_overflow">Folder: <xliff:g id="name" example="Games">%1$s</xliff:g>, <xliff:g id="size" example="2">%2$d</xliff:g> or more items</string>
 
     <!-- Strings for the customization mode -->
-    <!-- Text for widget add button [CHAR LIMIT=30]-->
-    <string name="widget_button_text">Widgets</string>
     <!-- Text for wallpaper change button [CHAR LIMIT=30]-->
     <string name="wallpaper_button_text">Wallpapers</string>
     <!-- Text for wallpaper change button [CHAR LIMIT=30]-->
diff --git a/src/com/android/launcher3/BaseRecyclerView.java b/src/com/android/launcher3/BaseRecyclerView.java
index c55b46b..9369bdc 100644
--- a/src/com/android/launcher3/BaseRecyclerView.java
+++ b/src/com/android/launcher3/BaseRecyclerView.java
@@ -23,6 +23,7 @@
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityNodeInfo;
 
+import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
 import com.android.launcher3.compat.AccessibilityManagerCompat;
@@ -188,4 +189,21 @@
         super.onInitializeAccessibilityNodeInfo(info);
         if (isLayoutSuppressed()) info.setScrollable(false);
     }
+
+    /**
+     * Scrolls this recycler view to the top.
+     */
+    public void scrollToTop() {
+        if (mScrollbar != null) {
+            mScrollbar.reattachThumbToScroll();
+        }
+        if (getLayoutManager() instanceof LinearLayoutManager) {
+            LinearLayoutManager layoutManager = (LinearLayoutManager) getLayoutManager();
+            if (layoutManager.findFirstCompletelyVisibleItemPosition() == 0) {
+                // We are at the top, so don't scrollToPosition (would cause unnecessary relayout).
+                return;
+            }
+        }
+        scrollToPosition(0);
+    }
 }
\ No newline at end of file
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index e89b9b0..699495c 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -615,7 +615,9 @@
                         + "\" bitmapIcon=" + info.bitmap.icon
                         + " componentName=" + info.componentName.getPackageName());
             }
+            writer.println();
         }
+        mModelDelegate.dump(prefix, fd, writer, args);
         mBgDataModel.dump(prefix, fd, writer, args);
     }
 
diff --git a/src/com/android/launcher3/allapps/AllAppsContainerView.java b/src/com/android/launcher3/allapps/AllAppsContainerView.java
index ec2a6d5..4fd2577 100644
--- a/src/com/android/launcher3/allapps/AllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsContainerView.java
@@ -16,6 +16,8 @@
 package com.android.launcher3.allapps;
 
 import static com.android.launcher3.allapps.AllAppsGridAdapter.AdapterItem;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_TAP_ON_PERSONAL_TAB;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_TAP_ON_WORK_TAB;
 import static com.android.launcher3.model.BgDataModel.Callbacks.FLAG_HAS_SHORTCUT_PERMISSION;
 import static com.android.launcher3.model.BgDataModel.Callbacks.FLAG_QUIET_MODE_CHANGE_PERMISSION;
 import static com.android.launcher3.model.BgDataModel.Callbacks.FLAG_QUIET_MODE_ENABLED;
@@ -432,9 +434,19 @@
             mAH[AdapterHolder.WORK].setup(mViewPager.getChildAt(1), mWorkMatcher);
             mViewPager.getPageIndicator().setActiveMarker(AdapterHolder.MAIN);
             findViewById(R.id.tab_personal)
-                    .setOnClickListener((View view) -> mViewPager.snapToPage(AdapterHolder.MAIN));
+                    .setOnClickListener((View view) -> {
+                        if (mViewPager.snapToPage(AdapterHolder.MAIN)) {
+                            mLauncher.getStatsLogManager().logger()
+                                    .log(LAUNCHER_ALLAPPS_TAP_ON_PERSONAL_TAB);
+                        }
+                    });
             findViewById(R.id.tab_work)
-                    .setOnClickListener((View view) -> mViewPager.snapToPage(AdapterHolder.WORK));
+                    .setOnClickListener((View view) -> {
+                        if (mViewPager.snapToPage(AdapterHolder.WORK)) {
+                            mLauncher.getStatsLogManager().logger()
+                                    .log(LAUNCHER_ALLAPPS_TAP_ON_WORK_TAB);
+                        }
+                    });
             onActivePageChanged(mViewPager.getNextPage());
         } else {
             mAH[AdapterHolder.MAIN].setup(findViewById(R.id.apps_list_view), null);
diff --git a/src/com/android/launcher3/allapps/AllAppsPagedView.java b/src/com/android/launcher3/allapps/AllAppsPagedView.java
index 647402b..14e3b51 100644
--- a/src/com/android/launcher3/allapps/AllAppsPagedView.java
+++ b/src/com/android/launcher3/allapps/AllAppsPagedView.java
@@ -15,9 +15,13 @@
  */
 package com.android.launcher3.allapps;
 
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_SWIPE_TO_PERSONAL_TAB;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_SWIPE_TO_WORK_TAB;
+
 import android.content.Context;
 import android.util.AttributeSet;
 
+import com.android.launcher3.Launcher;
 import com.android.launcher3.PagedView;
 import com.android.launcher3.R;
 import com.android.launcher3.config.FeatureFlags;
@@ -44,4 +48,16 @@
                         R.dimen.all_apps_header_top_padding);
         setPadding(0, topPadding, 0, 0);
     }
+
+    @Override
+    protected boolean snapToPageWithVelocity(int whichPage, int velocity) {
+        boolean resp = super.snapToPageWithVelocity(whichPage, velocity);
+        if (resp && whichPage != mCurrentPage) {
+            Launcher.getLauncher(getContext()).getStatsLogManager().logger()
+                    .log(mCurrentPage < whichPage
+                            ? LAUNCHER_ALLAPPS_SWIPE_TO_WORK_TAB
+                            : LAUNCHER_ALLAPPS_SWIPE_TO_PERSONAL_TAB);
+        }
+        return resp;
+    }
 }
diff --git a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
index e61b95d..ace9938 100644
--- a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
@@ -36,7 +36,6 @@
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.R;
-import com.android.launcher3.allapps.AllAppsGridAdapter.AppsGridLayoutManager;
 import com.android.launcher3.views.RecyclerViewFastScroller;
 
 import java.util.ArrayList;
@@ -109,23 +108,6 @@
         mViewHeights.put(AllAppsGridAdapter.VIEW_TYPE_ICON, grid.allAppsCellHeightPx);
     }
 
-    /**
-     * Scrolls this recycler view to the top.
-     */
-    public void scrollToTop() {
-        // Ensure we reattach the scrollbar if it was previously detached while fast-scrolling
-        if (mScrollbar != null) {
-            mScrollbar.reattachThumbToScroll();
-        }
-        if (getLayoutManager() instanceof AppsGridLayoutManager) {
-            AppsGridLayoutManager layoutManager = (AppsGridLayoutManager) getLayoutManager();
-            if (layoutManager.findFirstCompletelyVisibleItemPosition() == 0) {
-                // We are at the top, so don't scrollToPosition (would cause unnecessary relayout).
-                return;
-            }
-        }
-        scrollToPosition(0);
-    }
 
     @Override
     public void onDraw(Canvas c) {
diff --git a/src/com/android/launcher3/allapps/LauncherAllAppsContainerView.java b/src/com/android/launcher3/allapps/LauncherAllAppsContainerView.java
index bc2e66c..13ddc12 100644
--- a/src/com/android/launcher3/allapps/LauncherAllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/LauncherAllAppsContainerView.java
@@ -16,8 +16,6 @@
 package com.android.launcher3.allapps;
 
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_KEYBOARD_CLOSED;
-import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_SWITCHED_TO_MAIN_TAB;
-import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_SWITCHED_TO_WORK_TAB;
 
 import android.content.Context;
 import android.graphics.Rect;
@@ -90,14 +88,6 @@
     public void onActivePageChanged(int currentActivePage) {
         super.onActivePageChanged(currentActivePage);
         if (mUsingTabs) {
-            // Log tab switches only when the launcher is in AllApps state
-            if (mLauncher.getStateManager().getCurrentStableState() == LauncherState.ALL_APPS) {
-                mLauncher.getStatsLogManager().logger()
-                        .log(currentActivePage == AdapterHolder.WORK
-                                ? LAUNCHER_ALLAPPS_SWITCHED_TO_WORK_TAB
-                                : LAUNCHER_ALLAPPS_SWITCHED_TO_MAIN_TAB);
-            }
-
             if (currentActivePage == AdapterHolder.WORK) {
                 WorkEduView.showWorkEduIfNeeded(mLauncher);
             } else {
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index ef7bdf4..e406e9b 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -158,7 +158,7 @@
             "ENABLE_SMARTSPACE_UNIVERSAL", false,
             "Replace Smartspace with a version rendered by System UI.");
 
-    public static final BooleanFlag ENABLE_SMARTSPACE_ENHANCED = getDebugFlag(
+    public static final BooleanFlag ENABLE_SMARTSPACE_ENHANCED = new DeviceFlag(
             "ENABLE_SMARTSPACE_ENHANCED", false,
             "Replace Smartspace with the enhanced version. "
               + "Ignored if ENABLE_SMARTSPACE_UNIVERSAL is enabled.");
@@ -263,6 +263,8 @@
         }
 
         public void addChangeListener(Context context, Runnable r) { }
+
+        public void removeChangeListener(Runnable r) {}
     }
 
     public static class DebugFlag extends BooleanFlag {
diff --git a/src/com/android/launcher3/logging/StatsLogManager.java b/src/com/android/launcher3/logging/StatsLogManager.java
index 431d534..d554bb9 100644
--- a/src/com/android/launcher3/logging/StatsLogManager.java
+++ b/src/com/android/launcher3/logging/StatsLogManager.java
@@ -362,11 +362,11 @@
         @UiEvent(doc = "User closed the AllApps keyboard.")
         LAUNCHER_ALLAPPS_KEYBOARD_CLOSED(694),
 
-        @UiEvent(doc = "User switched to Main tab in AllApps screen.")
-        LAUNCHER_ALLAPPS_SWITCHED_TO_MAIN_TAB(695),
+        @UiEvent(doc = "User switched to AllApps Main/Personal tab by swiping left.")
+        LAUNCHER_ALLAPPS_SWIPE_TO_PERSONAL_TAB(695),
 
-        @UiEvent(doc = "User switched to Work tab in AllApps screen.")
-        LAUNCHER_ALLAPPS_SWITCHED_TO_WORK_TAB(696),
+        @UiEvent(doc = "User switched to AllApps Work tab by swiping right.")
+        LAUNCHER_ALLAPPS_SWIPE_TO_WORK_TAB(696),
 
         @UiEvent(doc = "Default event when dedicated UI event is not available for the user action"
                 + " on slice .")
@@ -396,8 +396,17 @@
         @UiEvent(doc = "IME is used for selecting the focused item on the AllApps screen.")
         LAUNCHER_ALLAPPS_FOCUSED_ITEM_SELECTED_WITH_IME(718),
 
+        @UiEvent(doc = "User long-pressed on an AllApps item.")
+        LAUNCHER_ALLAPPS_ITEM_LONG_PRESSED(719),
+
         @UiEvent(doc = "Launcher entered into AllApps state with device search enabled.")
         LAUNCHER_ALLAPPS_ENTRY_WITH_DEVICE_SEARCH(720),
+
+        @UiEvent(doc = "User switched to AllApps Main/Personal tab by tapping on it.")
+        LAUNCHER_ALLAPPS_TAP_ON_PERSONAL_TAB(721),
+
+        @UiEvent(doc = "User switched to AllApps Work tab by tapping on it.")
+        LAUNCHER_ALLAPPS_TAP_ON_WORK_TAB(722),
         ;
 
         // ADD MORE
diff --git a/src/com/android/launcher3/model/ModelDelegate.java b/src/com/android/launcher3/model/ModelDelegate.java
index 92bea5b..13ec1ec 100644
--- a/src/com/android/launcher3/model/ModelDelegate.java
+++ b/src/com/android/launcher3/model/ModelDelegate.java
@@ -27,6 +27,8 @@
 import com.android.launcher3.shortcuts.ShortcutKey;
 import com.android.launcher3.util.ResourceBasedOverride;
 
+import java.io.FileDescriptor;
+import java.io.PrintWriter;
 import java.util.Map;
 
 /**
@@ -89,4 +91,11 @@
     @WorkerThread
     public void destroy() { }
 
+    /**
+     * Add data to a dumpsys request for Launcher (e.g. for bug reports).
+     *
+     * @see com.android.launcher3.Launcher#dump(java.lang.String, java.io.FileDescriptor,
+     *                                          java.io.PrintWriter, java.lang.String[])
+     **/
+    public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { }
 }
diff --git a/src/com/android/launcher3/popup/ArrowPopup.java b/src/com/android/launcher3/popup/ArrowPopup.java
index 56438d0..5a34d2a 100644
--- a/src/com/android/launcher3/popup/ArrowPopup.java
+++ b/src/com/android/launcher3/popup/ArrowPopup.java
@@ -26,11 +26,8 @@
 import android.animation.ValueAnimator;
 import android.content.Context;
 import android.content.res.Resources;
-import android.graphics.CornerPathEffect;
 import android.graphics.Outline;
-import android.graphics.Paint;
 import android.graphics.Rect;
-import android.graphics.drawable.ShapeDrawable;
 import android.util.AttributeSet;
 import android.util.Pair;
 import android.view.Gravity;
@@ -51,7 +48,6 @@
 import com.android.launcher3.anim.RevealOutlineAnimation;
 import com.android.launcher3.anim.RoundedRectRevealOutlineProvider;
 import com.android.launcher3.dragndrop.DragLayer;
-import com.android.launcher3.graphics.TriangleShape;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.BaseDragLayer;
 
@@ -72,7 +68,11 @@
     protected final T mLauncher;
     protected final boolean mIsRtl;
 
-    private final int mArrowOffset;
+    private final int mArrowOffsetVertical;
+    private final int mArrowOffsetHorizontal;
+    private final int mArrowWidth;
+    private final int mArrowHeight;
+    private final int mArrowPointRadius;
     private final View mArrow;
 
     protected boolean mIsLeftAligned;
@@ -103,11 +103,14 @@
 
         // Initialize arrow view
         final Resources resources = getResources();
-        final int arrowWidth = resources.getDimensionPixelSize(R.dimen.popup_arrow_width);
-        final int arrowHeight = resources.getDimensionPixelSize(R.dimen.popup_arrow_height);
+        mArrowWidth = resources.getDimensionPixelSize(R.dimen.popup_arrow_width);
+        mArrowHeight = resources.getDimensionPixelSize(R.dimen.popup_arrow_height);
         mArrow = new View(context);
-        mArrow.setLayoutParams(new DragLayer.LayoutParams(arrowWidth, arrowHeight));
-        mArrowOffset = resources.getDimensionPixelSize(R.dimen.popup_arrow_vertical_offset);
+        mArrow.setLayoutParams(new DragLayer.LayoutParams(mArrowWidth, mArrowHeight));
+        mArrowOffsetVertical = resources.getDimensionPixelSize(R.dimen.popup_arrow_vertical_offset);
+        mArrowOffsetHorizontal = resources.getDimensionPixelSize(
+                R.dimen.popup_arrow_horizontal_center_offset) - (mArrowWidth / 2);
+        mArrowPointRadius = resources.getDimensionPixelSize(R.dimen.popup_arrow_corner_radius);
     }
 
     public ArrowPopup(Context context, AttributeSet attrs) {
@@ -200,48 +203,33 @@
         orientAboutObject();
     }
 
-    private void addArrow() {
-        final Resources res = getResources();
-        final int arrowCenterOffset = res.getDimensionPixelSize(isAlignedWithStart()
-                ? R.dimen.popup_arrow_horizontal_center_start
-                : R.dimen.popup_arrow_horizontal_center_end);
-        final int halfArrowWidth = res.getDimensionPixelSize(R.dimen.popup_arrow_width) / 2;
-        getPopupContainer().addView(mArrow);
-        DragLayer.LayoutParams arrowLp = (DragLayer.LayoutParams) mArrow.getLayoutParams();
+    private int getArrowLeft() {
         if (mIsLeftAligned) {
-            mArrow.setX(getX() + arrowCenterOffset - halfArrowWidth);
-        } else {
-            mArrow.setX(getX() + getMeasuredWidth() - arrowCenterOffset - halfArrowWidth);
+            return mArrowOffsetHorizontal;
         }
+        return getMeasuredWidth() - mArrowOffsetHorizontal - mArrowWidth;
+    }
+
+    private void addArrow() {
+        getPopupContainer().addView(mArrow);
+        mArrow.setX(getX() + getArrowLeft());
 
         if (Gravity.isVertical(mGravity)) {
             // This is only true if there wasn't room for the container next to the icon,
             // so we centered it instead. In that case we don't want to showDefaultOptions the arrow.
             mArrow.setVisibility(INVISIBLE);
         } else {
-            ShapeDrawable arrowDrawable = new ShapeDrawable(TriangleShape.create(
-                    arrowLp.width, arrowLp.height, !mIsAboveIcon));
-            Paint arrowPaint = arrowDrawable.getPaint();
-            arrowPaint.setColor(Themes.getAttrColor(getContext(), R.attr.popupColorPrimary));
-            // The corner path effect won't be reflected in the shadow, but shouldn't be noticeable.
-            int radius = getResources().getDimensionPixelSize(R.dimen.popup_arrow_corner_radius);
-            arrowPaint.setPathEffect(new CornerPathEffect(radius));
-            mArrow.setBackground(arrowDrawable);
-            // Clip off the part of the arrow that is underneath the popup.
-            if (mIsAboveIcon) {
-                mArrow.setClipBounds(new Rect(0, -mArrowOffset, arrowLp.width, arrowLp.height));
-            } else {
-                mArrow.setClipBounds(new Rect(0, 0, arrowLp.width, arrowLp.height + mArrowOffset));
-            }
+            mArrow.setBackground(new RoundedArrowDrawable(
+                    mArrowWidth, mArrowHeight, mArrowPointRadius,
+                    mOutlineRadius, getMeasuredWidth(), getMeasuredHeight(),
+                    mArrowOffsetHorizontal, -mArrowOffsetVertical,
+                    !mIsAboveIcon, mIsLeftAligned,
+                    Themes.getAttrColor(getContext(), R.attr.popupColorPrimary)));
             mArrow.setElevation(getElevation());
         }
 
-        mArrow.setPivotX(arrowLp.width / 2);
-        mArrow.setPivotY(mIsAboveIcon ? arrowLp.height : 0);
-    }
-
-    protected boolean isAlignedWithStart() {
-        return mIsLeftAligned && !mIsRtl || !mIsLeftAligned && mIsRtl;
+        mArrow.setPivotX(mArrowWidth / 2.0f);
+        mArrow.setPivotY(mIsAboveIcon ? mArrowHeight : 0);
     }
 
     /**
@@ -274,8 +262,9 @@
      */
     private void orientAboutObject(boolean allowAlignLeft, boolean allowAlignRight) {
         measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
+
         int width = getMeasuredWidth();
-        int extraVerticalSpace = mArrow.getLayoutParams().height + mArrowOffset
+        int extraVerticalSpace = mArrowHeight + mArrowOffsetVertical
                 + getResources().getDimensionPixelSize(R.dimen.popup_vertical_padding);
         int height = getMeasuredHeight() + extraVerticalSpace;
 
@@ -291,22 +280,7 @@
 
         // Offset x so that the arrow and shortcut icons are center-aligned with the original icon.
         int iconWidth = mTempRect.width();
-        Resources resources = getResources();
-        int xOffset;
-        if (isAlignedWithStart()) {
-            // Aligning with the shortcut icon.
-            int shortcutIconWidth = resources.getDimensionPixelSize(R.dimen.deep_shortcut_icon_size);
-            int shortcutPaddingStart = resources.getDimensionPixelSize(
-                    R.dimen.popup_padding_start);
-            xOffset = iconWidth / 2 - shortcutIconWidth / 2 - shortcutPaddingStart;
-        } else {
-            // Aligning with the drag handle.
-            int shortcutDragHandleWidth = resources.getDimensionPixelSize(
-                    R.dimen.deep_shortcut_drag_handle_size);
-            int shortcutPaddingEnd = resources.getDimensionPixelSize(
-                    R.dimen.popup_padding_end);
-            xOffset = iconWidth / 2 - shortcutDragHandleWidth / 2 - shortcutPaddingEnd;
-        }
+        int xOffset = iconWidth / 2 - mArrowOffsetHorizontal - mArrowWidth / 2;
         x += mIsLeftAligned ? xOffset : -xOffset;
 
         // Check whether we can still align as we originally wanted, now that we've calculated x.
@@ -375,12 +349,14 @@
         FrameLayout.LayoutParams arrowLp = (FrameLayout.LayoutParams) mArrow.getLayoutParams();
         if (mIsAboveIcon) {
             arrowLp.gravity = lp.gravity = Gravity.BOTTOM;
-            lp.bottomMargin = getPopupContainer().getHeight() - y - getMeasuredHeight() - insets.top;
-            arrowLp.bottomMargin = lp.bottomMargin - arrowLp.height - mArrowOffset - insets.bottom;
+            lp.bottomMargin =
+                    getPopupContainer().getHeight() - y - getMeasuredHeight() - insets.top;
+            arrowLp.bottomMargin =
+                    lp.bottomMargin - arrowLp.height - mArrowOffsetVertical - insets.bottom;
         } else {
             arrowLp.gravity = lp.gravity = Gravity.TOP;
             lp.topMargin = y + insets.top;
-            arrowLp.topMargin = lp.topMargin - insets.top - arrowLp.height - mArrowOffset;
+            arrowLp.topMargin = lp.topMargin - insets.top - arrowLp.height - mArrowOffsetVertical;
         }
     }
 
@@ -529,22 +505,13 @@
     protected void onCreateCloseAnimation(AnimatorSet anim) { }
 
     private RoundedRectRevealOutlineProvider createOpenCloseOutlineProvider() {
-        Resources res = getResources();
-        int arrowCenterX = res.getDimensionPixelSize(mIsLeftAligned ^ mIsRtl ?
-                R.dimen.popup_arrow_horizontal_center_start:
-                R.dimen.popup_arrow_horizontal_center_end);
-        int halfArrowWidth = res.getDimensionPixelSize(R.dimen.popup_arrow_width) / 2;
-        float arrowCornerRadius = res.getDimension(R.dimen.popup_arrow_corner_radius);
-        if (!mIsLeftAligned) {
-            arrowCenterX = getMeasuredWidth() - arrowCenterX;
-        }
+        int arrowLeft = getArrowLeft();
         int arrowCenterY = mIsAboveIcon ? getMeasuredHeight() : 0;
 
-        mStartRect.set(arrowCenterX - halfArrowWidth, arrowCenterY, arrowCenterX + halfArrowWidth,
-                arrowCenterY);
+        mStartRect.set(arrowLeft, arrowCenterY, arrowLeft + mArrowWidth, arrowCenterY);
 
-        return new RoundedRectRevealOutlineProvider
-                (arrowCornerRadius, mOutlineRadius, mStartRect, mEndRect);
+        return new RoundedRectRevealOutlineProvider(
+                mArrowPointRadius, mOutlineRadius, mStartRect, mEndRect);
     }
 
     /**
diff --git a/src/com/android/launcher3/popup/RoundedArrowDrawable.java b/src/com/android/launcher3/popup/RoundedArrowDrawable.java
new file mode 100644
index 0000000..e662d5c
--- /dev/null
+++ b/src/com/android/launcher3/popup/RoundedArrowDrawable.java
@@ -0,0 +1,161 @@
+/*
+ * 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.
+ */
+
+package com.android.launcher3.popup;
+
+import static java.lang.Math.atan;
+import static java.lang.Math.cos;
+import static java.lang.Math.sin;
+import static java.lang.Math.toDegrees;
+
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.Matrix;
+import android.graphics.Outline;
+import android.graphics.Paint;
+import android.graphics.Path;
+import android.graphics.PixelFormat;
+import android.graphics.drawable.Drawable;
+
+/**
+ * A drawable for a very specific purpose. Used for the caret arrow on a rounded rectangle popup
+ * bubble.
+ * Draws a triangle with one rounded tip, the opposite edge is clipped by the body of the popup
+ * so there is no overlap when drawing them together.
+ */
+public class RoundedArrowDrawable extends Drawable {
+
+    private final Path mPath;
+    private final Paint mPaint;
+
+    /**
+     * Default constructor.
+     *
+     * @param width of the arrow.
+     * @param height of the arrow.
+     * @param radius of the tip of the arrow.
+     * @param popupRadius of the rect to clip this by.
+     * @param popupWidth of the rect to clip this by.
+     * @param popupHeight of the rect to clip this by.
+     * @param arrowOffsetX from the edge of the popup to the arrow.
+     * @param arrowOffsetY how much the arrow will overlap the popup.
+     * @param isPointingUp or not.
+     * @param leftAligned or false for right aligned.
+     * @param color to draw the triangle.
+     */
+    public RoundedArrowDrawable(float width, float height, float radius, float popupRadius,
+            float popupWidth, float popupHeight,
+            float arrowOffsetX, float arrowOffsetY, boolean isPointingUp, boolean leftAligned,
+            int color) {
+        mPath = new Path();
+        mPaint = new Paint();
+        mPaint.setColor(color);
+        mPaint.setStyle(Paint.Style.FILL);
+        mPaint.setAntiAlias(true);
+
+        // Make the drawable with the triangle pointing down and positioned on the left..
+        addDownPointingRoundedTriangleToPath(width, height, radius, mPath);
+        clipPopupBodyFromPath(popupRadius, popupWidth, popupHeight, arrowOffsetX, arrowOffsetY,
+                mPath);
+
+        // ... then flip it horizontal or vertical based on where it will be used.
+        Matrix pathTransform = new Matrix();
+        pathTransform.setScale(
+                leftAligned ? 1 : -1, isPointingUp ? -1 : 1, width * 0.5f, height * 0.5f);
+        mPath.transform(pathTransform);
+    }
+
+    @Override
+    public void draw(Canvas canvas) {
+        canvas.drawPath(mPath, mPaint);
+    }
+
+    @Override
+    public void getOutline(Outline outline) {
+        outline.setPath(mPath);
+    }
+
+    @Override
+    public int getOpacity() {
+        return PixelFormat.TRANSLUCENT;
+    }
+
+    @Override
+    public void setAlpha(int i) {
+        mPaint.setAlpha(i);
+    }
+
+    @Override
+    public void setColorFilter(ColorFilter colorFilter) {
+        mPaint.setColorFilter(colorFilter);
+    }
+
+    private static void addDownPointingRoundedTriangleToPath(float width, float height,
+            float radius, Path path) {
+        // Calculated for the arrow pointing down, will be flipped later if needed.
+
+        // Theta is half of the angle inside the triangle tip
+        float tanTheta = width / (2.0f * height);
+        float theta = (float) atan(tanTheta);
+
+        // Some trigonometry to find the center of the circle for the rounded tip
+        float roundedPointCenterY = (float) (height - (radius / sin(theta)));
+
+        // p is the distance along the triangle side to the intersection with the point circle
+        float p = radius / tanTheta;
+        float lineRoundPointIntersectFromCenter = (float) (p * sin(theta));
+        float lineRoundPointIntersectFromTop = (float) (height - (p * cos(theta)));
+
+        float centerX = width / 2.0f;
+        float thetaDeg = (float) toDegrees(theta);
+
+        path.reset();
+        path.moveTo(0, 0);
+        // Draw the top
+        path.lineTo(width, 0);
+        // Draw the right side up to the circle intersection
+        path.lineTo(
+                centerX + lineRoundPointIntersectFromCenter,
+                lineRoundPointIntersectFromTop);
+        // Draw the rounded point
+        path.arcTo(
+                centerX - radius,
+                roundedPointCenterY - radius,
+                centerX + radius,
+                roundedPointCenterY + radius,
+                thetaDeg,
+                180 - (2 * thetaDeg),
+                false);
+        // Draw the left edge to close
+        path.lineTo(0, 0);
+        path.close();
+    }
+
+    private static void clipPopupBodyFromPath(float popupRadius, float popupWidth,
+            float popupHeight, float arrowOffsetX, float arrowOffsetY, Path path) {
+        // Make a path that is used to clip the triangle, this represents the body of the popup
+        Path clipPiece = new Path();
+        clipPiece.addRoundRect(
+                0, 0, popupWidth, popupHeight,
+                popupRadius, popupRadius, Path.Direction.CW);
+        // clipping is performed as if the arrow is pointing down and positioned on the left, the
+        // resulting path will be flipped as needed later.
+        // The extra 0.5 in the vertical offset is to close the gap between this anti-aliased object
+        // and the anti-aliased body of the popup.
+        clipPiece.offset(-arrowOffsetX, -popupHeight + arrowOffsetY - 0.5f);
+        path.op(clipPiece, Path.Op.DIFFERENCE);
+    }
+}
diff --git a/src/com/android/launcher3/settings/SettingsActivity.java b/src/com/android/launcher3/settings/SettingsActivity.java
index ac8dac5..f03065c 100644
--- a/src/com/android/launcher3/settings/SettingsActivity.java
+++ b/src/com/android/launcher3/settings/SettingsActivity.java
@@ -129,6 +129,7 @@
         private String mHighLightKey;
         private boolean mPreferenceHighlighted = false;
         private NotificationDotsPreference mNotificationSettingsChangedListener;
+        private Preference mDeveloperOptionPref;
 
         @Override
         public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
@@ -202,18 +203,37 @@
                     return FeatureFlags.showFlagTogglerUi(getContext());
 
                 case DEVELOPER_OPTIONS_KEY:
-                    // Show if plugins are enabled or flag UI is enabled.
-                    return FeatureFlags.showFlagTogglerUi(getContext()) ||
-                            PluginManagerWrapper.hasPlugins(getContext());
+                    mDeveloperOptionPref = preference;
+                    return updateDeveloperOption();
             }
 
             return true;
         }
 
+        /**
+         * Show if plugins are enabled or flag UI is enabled.
+         * @return True if we should show the preference option.
+         */
+        private boolean updateDeveloperOption() {
+            boolean showPreference = FeatureFlags.showFlagTogglerUi(getContext())
+                    || PluginManagerWrapper.hasPlugins(getContext());
+            if (mDeveloperOptionPref != null) {
+                mDeveloperOptionPref.setEnabled(showPreference);
+                if (showPreference) {
+                    getPreferenceScreen().addPreference(mDeveloperOptionPref);
+                } else {
+                    getPreferenceScreen().removePreference(mDeveloperOptionPref);
+                }
+            }
+            return showPreference;
+        }
+
         @Override
         public void onResume() {
             super.onResume();
 
+            updateDeveloperOption();
+
             if (isAdded() && !mPreferenceHighlighted) {
                 PreferenceHighlighter highlighter = createHighlighter();
                 if (highlighter != null) {
diff --git a/src/com/android/launcher3/touch/ItemLongClickListener.java b/src/com/android/launcher3/touch/ItemLongClickListener.java
index 7baeab8..919673f 100644
--- a/src/com/android/launcher3/touch/ItemLongClickListener.java
+++ b/src/com/android/launcher3/touch/ItemLongClickListener.java
@@ -21,6 +21,7 @@
 import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_ITEM_LONG_PRESSED;
 
 import android.view.View;
 import android.view.View.OnLongClickListener;
@@ -32,6 +33,7 @@
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.folder.Folder;
+import com.android.launcher3.logging.StatsLogManager.StatsLogger;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.testing.TestLogging;
 import com.android.launcher3.testing.TestProtocol;
@@ -86,6 +88,12 @@
         if (!launcher.isInState(ALL_APPS) && !launcher.isInState(OVERVIEW)) return false;
         if (launcher.getWorkspace().isSwitchingState()) return false;
 
+        StatsLogger logger = launcher.getStatsLogManager().logger();
+        if (v.getTag() instanceof ItemInfo) {
+            logger.withItemInfo((ItemInfo) v.getTag());
+        }
+        logger.log(LAUNCHER_ALLAPPS_ITEM_LONG_PRESSED);
+
         // Start the drag
         final DragController dragController = launcher.getDragController();
         dragController.addDragListener(new DragController.DragListener() {
diff --git a/src/com/android/launcher3/views/RecyclerViewFastScroller.java b/src/com/android/launcher3/views/RecyclerViewFastScroller.java
index 804fb3e..ae34257 100644
--- a/src/com/android/launcher3/views/RecyclerViewFastScroller.java
+++ b/src/com/android/launcher3/views/RecyclerViewFastScroller.java
@@ -34,6 +34,7 @@
 import android.view.ViewConfiguration;
 import android.widget.TextView;
 
+import androidx.annotation.Nullable;
 import androidx.recyclerview.widget.RecyclerView;
 
 import com.android.launcher3.BaseRecyclerView;
@@ -99,6 +100,7 @@
     private boolean mIsThumbDetached;
     private final boolean mCanThumbDetach;
     private boolean mIgnoreDragGesture;
+    private boolean mIsRecyclerViewFirstChildInParent = true;
 
     // This is the offset from the top of the scrollbar when the user first starts touching.  To
     // prevent jumping, this offset is applied as the user scrolls.
@@ -112,6 +114,7 @@
 
     protected BaseRecyclerView mRv;
     private RecyclerView.OnScrollListener mOnScrollListener;
+    @Nullable private OnFastScrollChangeListener mOnFastScrollChangeListener;
 
     private int mDownX;
     private int mDownY;
@@ -188,6 +191,9 @@
         updatePopupY(y);
         mThumbOffsetY = y;
         invalidate();
+        if (mOnFastScrollChangeListener != null) {
+            mOnFastScrollChangeListener.onThumbOffsetYChanged(mThumbOffsetY);
+        }
     }
 
     public int getThumbOffsetY() {
@@ -391,7 +397,9 @@
             return false;
         }
         getHitRect(sTempRect);
-        sTempRect.top += mRv.getScrollBarTop();
+        if (mIsRecyclerViewFirstChildInParent) {
+            sTempRect.top += mRv.getScrollBarTop();
+        }
         if (outOffset != null) {
             outOffset.set(sTempRect.left, sTempRect.top);
         }
@@ -404,4 +412,23 @@
         // alpha is so low, it does not matter.
         return false;
     }
+
+    public void setIsRecyclerViewFirstChildInParent(boolean isRecyclerViewFirstChildInParent) {
+        mIsRecyclerViewFirstChildInParent = isRecyclerViewFirstChildInParent;
+    }
+
+    public void setOnFastScrollChangeListener(
+            @Nullable OnFastScrollChangeListener onFastScrollChangeListener) {
+        mOnFastScrollChangeListener = onFastScrollChangeListener;
+    }
+
+    /**
+     * A callback that is invoked when there is a scroll change in {@link RecyclerViewFastScroller}.
+     */
+    public interface OnFastScrollChangeListener {
+        /**
+         * Called when the thumb offset vertical position, in pixels, has changed to {@code y}.
+         */
+        void onThumbOffsetYChanged(int y);
+    }
 }
diff --git a/src/com/android/launcher3/widget/WidgetCell.java b/src/com/android/launcher3/widget/WidgetCell.java
index bef91d2..c6593f8 100644
--- a/src/com/android/launcher3/widget/WidgetCell.java
+++ b/src/com/android/launcher3/widget/WidgetCell.java
@@ -24,7 +24,6 @@
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.View.OnLayoutChangeListener;
-import android.view.ViewGroup;
 import android.view.ViewPropertyAnimator;
 import android.view.accessibility.AccessibilityNodeInfo;
 import android.widget.LinearLayout;
@@ -60,6 +59,8 @@
     /** Widget preview width is calculated by multiplying this factor to the widget cell width. */
     private static final float PREVIEW_SCALE = 0.8f;
 
+    private int mPreviewWidth;
+    private int mPreviewHeight;
     protected int mPresetPreviewSize;
     private int mCellSize;
 
@@ -106,6 +107,7 @@
     private void setContainerWidth() {
         mCellSize = (int) (mDeviceProfile.allAppsIconSizePx * WIDTH_SCALE);
         mPresetPreviewSize = (int) (mCellSize * PREVIEW_SCALE);
+        mPreviewWidth = mPreviewHeight = mPresetPreviewSize;
     }
 
     @Override
@@ -128,6 +130,7 @@
         mWidgetImage.setBitmap(null, null);
         mWidgetName.setText(null);
         mWidgetDims.setText(null);
+        mPreviewWidth = mPreviewHeight = mPresetPreviewSize;
 
         if (mActiveRequest != null) {
             mActiveRequest.cancel();
@@ -181,6 +184,11 @@
             return;
         }
         if (bitmap != null) {
+            LayoutParams layoutParams = (LayoutParams) mWidgetImage.getLayoutParams();
+            layoutParams.width = bitmap.getWidth();
+            layoutParams.height = bitmap.getHeight();
+            mWidgetImage.setLayoutParams(layoutParams);
+
             mWidgetImage.setBitmap(bitmap, mWidgetPreviewLoader.getBadgeForUser(mItem.user,
                     BaseIconFactory.getBadgeSizeForIconSize(mDeviceProfile.allAppsIconSizePx)));
             if (mAnimatePreview) {
@@ -197,8 +205,16 @@
         if (mActiveRequest != null) {
             return;
         }
-        mActiveRequest = mWidgetPreviewLoader.getPreview(
-                mItem, mPresetPreviewSize, mPresetPreviewSize, this);
+        mActiveRequest = mWidgetPreviewLoader.getPreview(mItem, mPreviewWidth, mPreviewHeight,
+                this);
+    }
+
+    /** Sets the widget preview image size in number of cells. */
+    public void setPreviewSize(int spanX, int spanY) {
+        int padding = 2 * getResources()
+                .getDimensionPixelSize(R.dimen.widget_preview_shortcut_padding);
+        mPreviewWidth = mDeviceProfile.cellWidthPx * spanX + padding;
+        mPreviewHeight = mDeviceProfile.cellHeightPx * spanY + padding;
     }
 
     @Override
@@ -233,12 +249,6 @@
     }
 
     @Override
-    public void setLayoutParams(ViewGroup.LayoutParams params) {
-        params.width = params.height = mCellSize;
-        super.setLayoutParams(params);
-    }
-
-    @Override
     public CharSequence getAccessibilityClassName() {
         return WidgetCell.class.getName();
     }
diff --git a/src/com/android/launcher3/widget/WidgetsBottomSheet.java b/src/com/android/launcher3/widget/WidgetsBottomSheet.java
index 223cda2..6abbf21 100644
--- a/src/com/android/launcher3/widget/WidgetsBottomSheet.java
+++ b/src/com/android/launcher3/widget/WidgetsBottomSheet.java
@@ -24,22 +24,25 @@
 import android.util.AttributeSet;
 import android.util.IntProperty;
 import android.util.Pair;
-import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.animation.Interpolator;
+import android.widget.ScrollView;
+import android.widget.TableLayout;
+import android.widget.TableRow;
 import android.widget.TextView;
 
+import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Insettable;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.R;
-import com.android.launcher3.ResourceUtils;
 import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.dragndrop.LivePreviewWidgetCell;
 import com.android.launcher3.model.WidgetItem;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.util.PackageUserKey;
+import com.android.launcher3.widget.util.WidgetsTableUtils;
 
 import java.util.List;
 
@@ -65,6 +68,8 @@
     private static final int DEFAULT_CLOSE_DURATION = 200;
     private ItemInfo mOriginalItemInfo;
     private Rect mInsets;
+    private final int mMaxTableHeight;
+    private int mMaxHorizontalSpan = 4;
 
     public WidgetsBottomSheet(Context context, AttributeSet attrs) {
         this(context, attrs, 0);
@@ -75,12 +80,41 @@
         setWillNotDraw(false);
         mInsets = new Rect();
         mContent = this;
+        DeviceProfile deviceProfile = mLauncher.getDeviceProfile();
+        // Set the max table height to 2 / 3 of the grid height so that the bottom picker won't
+        // take over the entire view vertically.
+        mMaxTableHeight = deviceProfile.inv.numRows * 2 / 3  * deviceProfile.cellHeightPx;
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+
+        int paddingPx = 2 * getResources().getDimensionPixelOffset(
+                R.dimen.widget_cell_horizontal_padding);
+        int maxHorizontalSpan = findViewById(R.id.widgets_table).getMeasuredWidth()
+                / (mLauncher.getDeviceProfile().cellWidthPx + paddingPx);
+
+        if (mMaxHorizontalSpan != maxHorizontalSpan) {
+            // Ensure the table layout is showing widgets in the right column after measure.
+            mMaxHorizontalSpan = maxHorizontalSpan;
+            onWidgetsBound();
+        }
     }
 
     @Override
     protected void onLayout(boolean changed, int l, int t, int r, int b) {
         super.onLayout(changed, l, t, r, b);
         setTranslationShift(mTranslationShift);
+
+        // Ensure the scroll view height is not larger than mMaxTableHeight, which is a value
+        // smaller than the entire screen height.
+        ScrollView widgetsTableScrollView = findViewById(R.id.widgets_table_scroll_view);
+        if (widgetsTableScrollView.getMeasuredHeight() > mMaxTableHeight) {
+            ViewGroup.LayoutParams layoutParams = widgetsTableScrollView.getLayoutParams();
+            layoutParams.height = mMaxTableHeight;
+            widgetsTableScrollView.setLayoutParams(layoutParams);
+        }
     }
 
     public void populateAndShow(ItemInfo itemInfo) {
@@ -101,39 +135,21 @@
                         mOriginalItemInfo.getTargetComponent().getPackageName(),
                         mOriginalItemInfo.user));
 
-        ViewGroup widgetRow = findViewById(R.id.widgets);
-        ViewGroup widgetCells = widgetRow.findViewById(R.id.widgets_cell_list);
+        TableLayout widgetsTable = findViewById(R.id.widgets_table);
+        widgetsTable.removeAllViews();
 
-        widgetCells.removeAllViews();
-
-        for (int i = 0; i < widgets.size(); i++) {
-            WidgetCell widget = addItemCell(widgetCells);
-            widget.applyFromCellItem(widgets.get(i), LauncherAppState.getInstance(mLauncher)
-                    .getWidgetCache());
-            widget.ensurePreview();
-            widget.setVisibility(View.VISIBLE);
-            if (i < widgets.size() - 1) {
-                addDivider(widgetCells);
-            }
-        }
-
-        if (widgets.size() == 1) {
-            // If there is only one widget, we want to center it instead of left-align.
-            WidgetsBottomSheet.LayoutParams params = (WidgetsBottomSheet.LayoutParams)
-                    widgetRow.getLayoutParams();
-            params.gravity = Gravity.CENTER_HORIZONTAL;
-        } else {
-            // Otherwise, add an empty view to the start as padding (but still scroll edge to edge).
-            View leftPaddingView = LayoutInflater.from(getContext()).inflate(
-                    R.layout.widget_list_divider, widgetRow, false);
-            leftPaddingView.getLayoutParams().width = ResourceUtils.pxFromDp(
-                    16, getResources().getDisplayMetrics());
-            widgetCells.addView(leftPaddingView, 0);
-        }
-    }
-
-    private void addDivider(ViewGroup parent) {
-        LayoutInflater.from(getContext()).inflate(R.layout.widget_list_divider, parent, true);
+        WidgetsTableUtils.groupWidgetItemsIntoTable(widgets, mMaxHorizontalSpan).forEach(row -> {
+            TableRow tableRow = new TableRow(getContext());
+            row.forEach(widgetItem -> {
+                WidgetCell widget = addItemCell(tableRow);
+                widget.setPreviewSize(widgetItem.spanX, widgetItem.spanY);
+                widget.applyFromCellItem(widgetItem, LauncherAppState.getInstance(mLauncher)
+                        .getWidgetCache());
+                widget.ensurePreview();
+                widget.setVisibility(View.VISIBLE);
+            });
+            widgetsTable.addView(tableRow);
+        });
     }
 
     protected WidgetCell addItemCell(ViewGroup parent) {
diff --git a/src/com/android/launcher3/widget/picker/SearchAndRecommendationsScrollController.java b/src/com/android/launcher3/widget/picker/SearchAndRecommendationsScrollController.java
new file mode 100644
index 0000000..a5ed20a
--- /dev/null
+++ b/src/com/android/launcher3/widget/picker/SearchAndRecommendationsScrollController.java
@@ -0,0 +1,162 @@
+/*
+ * 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.
+ */
+package com.android.launcher3.widget.picker;
+
+import android.view.View;
+import android.widget.RelativeLayout;
+
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.android.launcher3.views.RecyclerViewFastScroller;
+import com.android.launcher3.widget.picker.WidgetsFullSheet.SearchAndRecommendationViewHolder;
+import com.android.launcher3.workprofile.PersonalWorkPagedView;
+
+/**
+ * A controller which measures & updates {@link WidgetsFullSheet}'s views padding, margin and
+ * vertical displacement upon scrolling.
+ */
+final class SearchAndRecommendationsScrollController implements
+        RecyclerViewFastScroller.OnFastScrollChangeListener {
+    private final boolean mHasWorkProfile;
+    private final SearchAndRecommendationViewHolder mViewHolder;
+    private final RecyclerView mPrimaryRecyclerView;
+
+    // The following are only non null if mHasWorkProfile is true.
+    @Nullable private final RecyclerView mWorkRecyclerView;
+    @Nullable private final View mPrimaryWorkTabsView;
+    @Nullable private final PersonalWorkPagedView mPrimaryWorkViewPager;
+
+    private int mMaxCollapsibleHeight = 0;
+
+    SearchAndRecommendationsScrollController(
+            boolean hasWorkProfile,
+            SearchAndRecommendationViewHolder viewHolder,
+            RecyclerView primaryRecyclerView,
+            @Nullable RecyclerView workRecyclerView,
+            @Nullable View personalWorkTabsView,
+            @Nullable PersonalWorkPagedView primaryWorkViewPager) {
+        mHasWorkProfile = hasWorkProfile;
+        mViewHolder = viewHolder;
+        mPrimaryRecyclerView = primaryRecyclerView;
+        mWorkRecyclerView = workRecyclerView;
+        mPrimaryWorkTabsView = personalWorkTabsView;
+        mPrimaryWorkViewPager = primaryWorkViewPager;
+    }
+
+    /**
+     * Updates the margin and padding of {@link WidgetsFullSheet} to accumulate collapsible views.
+     */
+    public void updateMarginAndPadding() {
+        // The maximum vertical distance, in pixels, until the last collapsible element is not
+        // visible from the screen when the user scrolls down the recycler view.
+        mMaxCollapsibleHeight = mViewHolder.mContainer.getPaddingTop()
+                + mViewHolder.mCollapseHandle.getMeasuredHeight()
+                + mViewHolder.mHeaderTitle.getMeasuredHeight();
+
+        int topContainerHeight = mViewHolder.mContainer.getMeasuredHeight();
+        if (mHasWorkProfile) {
+            // In a work profile setup, the full widget sheet contains the following views:
+            //           -------               -|
+            //           Widgets               -|---> LinearLayout for search & recommendations
+            //          Search bar             -|
+            //      Personal | Work
+            //           View Pager
+            //
+            // Views after the search & recommendations are not bound by RelativelyLayout param.
+            // To position them on the expected location, padding & margin are added to these views
+
+            // Tabs should have a padding of the height of the search & recommendations container.
+            mPrimaryWorkTabsView.setPadding(
+                    mPrimaryWorkTabsView.getPaddingLeft(),
+                    topContainerHeight,
+                    mPrimaryWorkTabsView.getPaddingRight(),
+                    mPrimaryWorkTabsView.getPaddingBottom());
+
+            // Instead of setting the top offset directly, we split the top offset into two values:
+            // 1. topOffsetAfterAllViewsCollapsed: this is the top offset after all collapsible
+            //    views are no longer visible on the screen.
+            //    This value is set as the margin for the view pager.
+            // 2. mMaxCollapsibleDistance
+            //    This value is set as the padding for the recycler views in order to work with
+            //    clipToPadding="false", which is an attribute for not showing top / bottom padding
+            //    when a recycler view has not reached the top or bottom of the list.
+            //    e.g. a list of 10 entries, only 3 entries are visible at a time.
+            //         case 1: recycler view is scrolled to the top. Top padding is visible/
+            //         (top padding)
+            //         item 1
+            //         item 2
+            //         item 3
+            //
+            //         case 2: recycler view is scrolled to the middle. No padding is visible.
+            //         item 4
+            //         item 5
+            //         item 6
+            //
+            //         case 3: recycler view is scrolled to the end. bottom padding is visible.
+            //         item 8
+            //         item 9
+            //         item 10
+            //         (bottom padding): not set in this case.
+            //
+            // When the views are first inflated, the sum of topOffsetAfterAllViewsCollapsed and
+            // mMaxCollapsibleDistance should equal to the top container height.
+            int tabsViewActualHeight =
+                    mPrimaryWorkTabsView.getMeasuredHeight() - mPrimaryWorkTabsView.getPaddingTop();
+            int topOffsetAfterAllViewsCollapsed =
+                    topContainerHeight + tabsViewActualHeight - mMaxCollapsibleHeight;
+
+            RelativeLayout.LayoutParams layoutParams =
+                    (RelativeLayout.LayoutParams) mPrimaryWorkViewPager.getLayoutParams();
+            layoutParams.setMargins(0, topOffsetAfterAllViewsCollapsed, 0, 0);
+            mPrimaryWorkViewPager.setLayoutParams(layoutParams);
+            mPrimaryWorkViewPager.requestLayout();
+
+            mPrimaryRecyclerView.setPadding(
+                    mPrimaryRecyclerView.getPaddingLeft(),
+                    mMaxCollapsibleHeight,
+                    mPrimaryRecyclerView.getPaddingRight(),
+                    mPrimaryRecyclerView.getPaddingBottom());
+            mWorkRecyclerView.setPadding(
+                    mWorkRecyclerView.getPaddingLeft(),
+                    mMaxCollapsibleHeight,
+                    mWorkRecyclerView.getPaddingRight(),
+                    mWorkRecyclerView.getPaddingBottom());
+        } else {
+            mPrimaryRecyclerView.setPadding(
+                    mPrimaryRecyclerView.getPaddingLeft(),
+                    topContainerHeight,
+                    mPrimaryRecyclerView.getPaddingRight(),
+                    mPrimaryRecyclerView.getPaddingBottom());
+        }
+    }
+
+    /**
+     * Changes the displacement of collapsible views (e.g. title & widget recommendations) and fixed
+     * views (e.g. recycler views, tabs) upon scrolling.
+     */
+    @Override
+    public void onThumbOffsetYChanged(int y) {
+        if (mMaxCollapsibleHeight > 0) {
+            int yDisplacement = Math.max(-y, -mMaxCollapsibleHeight);
+            mViewHolder.mHeaderTitle.setTranslationY(yDisplacement);
+            mViewHolder.mSearchBar.setTranslationY(yDisplacement);
+            if (mHasWorkProfile) {
+                mPrimaryWorkTabsView.setTranslationY(yDisplacement);
+            }
+        }
+    }
+}
diff --git a/src/com/android/launcher3/widget/picker/WidgetsFullSheet.java b/src/com/android/launcher3/widget/picker/WidgetsFullSheet.java
index 39953b1..3a186c5 100644
--- a/src/com/android/launcher3/widget/picker/WidgetsFullSheet.java
+++ b/src/com/android/launcher3/widget/picker/WidgetsFullSheet.java
@@ -34,6 +34,8 @@
 import android.view.View;
 import android.view.animation.AnimationUtils;
 import android.view.animation.Interpolator;
+import android.widget.EditText;
+import android.widget.TextView;
 
 import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
@@ -61,7 +63,8 @@
  * Popup for showing the full list of available widgets
  */
 public class WidgetsFullSheet extends BaseWidgetSheet
-        implements Insettable, ProviderChangedListener, OnActivePageChangedListener {
+        implements Insettable, ProviderChangedListener, OnActivePageChangedListener,
+        WidgetsRecyclerView.HeaderViewDimensionsProvider {
 
     private static final long DEFAULT_OPEN_DURATION = 267;
     private static final long FADE_IN_DURATION = 150;
@@ -77,6 +80,10 @@
             mPrimaryWidgetsFilter.negate();
 
     @Nullable private PersonalWorkPagedView mViewPager;
+    private int mInitialTabsHeight = 0;
+    private View mTabsView;
+    private SearchAndRecommendationViewHolder mSearchAndRecommendationViewHolder;
+    private SearchAndRecommendationsScrollController mSearchAndRecommendationsScrollController;
 
     public WidgetsFullSheet(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
@@ -98,8 +105,9 @@
         LayoutInflater layoutInflater = LayoutInflater.from(getContext());
         int contentLayoutRes = mHasWorkProfile ? R.layout.widgets_full_sheet_paged_view
                 : R.layout.widgets_full_sheet_recyclerview;
-        layoutInflater.inflate(contentLayoutRes,  springLayout, true);
+        layoutInflater.inflate(contentLayoutRes, springLayout, true);
 
+        RecyclerViewFastScroller fastScroller = findViewById(R.id.fast_scroller);
         if (mHasWorkProfile) {
             mViewPager = findViewById(R.id.widgets_view_pager);
             // Temporarily disable swipe gesture until widgets list horizontal scrollviews per
@@ -108,10 +116,12 @@
             mViewPager.initParentViews(this);
             mViewPager.getPageIndicator().setOnActivePageChangedListener(this);
             mViewPager.getPageIndicator().setActiveMarker(AdapterHolder.PRIMARY);
+            mTabsView = findViewById(R.id.tabs);
             findViewById(R.id.tab_personal)
                     .setOnClickListener((View view) -> mViewPager.snapToPage(0));
             findViewById(R.id.tab_work)
                     .setOnClickListener((View view) -> mViewPager.snapToPage(1));
+            fastScroller.setIsRecyclerViewFirstChildInParent(false);
             springLayout.addSpringView(R.id.primary_widgets_list_view);
             springLayout.addSpringView(R.id.work_widgets_list_view);
         } else {
@@ -119,12 +129,36 @@
             springLayout.addSpringView(R.id.primary_widgets_list_view);
         }
 
+        layoutInflater.inflate(R.layout.widgets_full_sheet_search_and_recommendations, springLayout,
+                true);
+        springLayout.addSpringView(R.id.search_and_recommendations_container);
+
+        mSearchAndRecommendationViewHolder = new SearchAndRecommendationViewHolder(
+                findViewById(R.id.search_and_recommendations_container));
+        mSearchAndRecommendationsScrollController = new SearchAndRecommendationsScrollController(
+                mHasWorkProfile,
+                mSearchAndRecommendationViewHolder,
+                findViewById(R.id.primary_widgets_list_view),
+                mHasWorkProfile ? findViewById(R.id.work_widgets_list_view) : null,
+                mTabsView,
+                mViewPager);
+        fastScroller.setOnFastScrollChangeListener(mSearchAndRecommendationsScrollController);
+
         onWidgetsBound();
     }
 
     @Override
     public void onActivePageChanged(int currentActivePage) {
         mAdapters.get(currentActivePage).mWidgetsRecyclerView.bindFastScrollbar();
+
+        reset();
+    }
+
+    private void reset() {
+        mAdapters.get(AdapterHolder.PRIMARY).mWidgetsRecyclerView.scrollToTop();
+        if (mHasWorkProfile) {
+            mAdapters.get(AdapterHolder.WORK).mWidgetsRecyclerView.scrollToTop();
+        }
     }
 
     @VisibleForTesting
@@ -198,8 +232,9 @@
         setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec),
                 MeasureSpec.getSize(heightMeasureSpec));
 
-        int maxSpansPerRow = getMeasuredWidth() / (deviceProfile.cellWidthPx
-                + deviceProfile.workspaceCellPaddingXPx);
+        int paddingPx = 2 * getResources().getDimensionPixelOffset(
+                R.dimen.widget_cell_horizontal_padding);
+        int maxSpansPerRow = getMeasuredWidth() / (deviceProfile.cellWidthPx + paddingPx);
         mAdapters.get(AdapterHolder.PRIMARY).mWidgetsListAdapter.setMaxHorizontalSpansPerRow(
                 maxSpansPerRow);
         if (mHasWorkProfile) {
@@ -220,6 +255,12 @@
                 contentLeft + contentWidth, height);
 
         setTranslationShift(mTranslationShift);
+
+        if (mInitialTabsHeight == 0 && mTabsView != null) {
+            mInitialTabsHeight = mTabsView.getMeasuredHeight();
+        }
+
+        mSearchAndRecommendationsScrollController.updateMarginAndPadding();
     }
 
     @Override
@@ -325,6 +366,14 @@
         AccessibilityManagerCompat.sendStateEventToTest(getContext(), NORMAL_STATE_ORDINAL);
     }
 
+    @Override
+    public int getHeaderViewHeight() {
+        // No need to check work profile here because mInitialTabHeight is always 0 if there is no
+        // work profile.
+        return mInitialTabsHeight
+                + mSearchAndRecommendationViewHolder.mContainer.getMeasuredHeight();
+    }
+
     /** A holder class for holding adapters & their corresponding recycler view. */
     private final class AdapterHolder {
         static final int PRIMARY = 0;
@@ -354,9 +403,24 @@
         void setup(WidgetsRecyclerView recyclerView) {
             mWidgetsRecyclerView = recyclerView;
             mWidgetsRecyclerView.setAdapter(mWidgetsListAdapter);
+            mWidgetsRecyclerView.setHeaderViewDimensionsProvider(WidgetsFullSheet.this);
             mWidgetsRecyclerView.setEdgeEffectFactory(
                     ((TopRoundedCornerView) mContent).createEdgeEffectFactory());
             mWidgetsListAdapter.setApplyBitmapDeferred(false, mWidgetsRecyclerView);
         }
     }
+
+    final class SearchAndRecommendationViewHolder {
+        final View mContainer;
+        final View mCollapseHandle;
+        final EditText mSearchBar;
+        final TextView mHeaderTitle;
+
+        SearchAndRecommendationViewHolder(View searchAndRecommendationContainer) {
+            mContainer = searchAndRecommendationContainer;
+            mCollapseHandle = mContainer.findViewById(R.id.collapse_handle);
+            mSearchBar = mContainer.findViewById(R.id.widgets_search_bar);
+            mHeaderTitle = mContainer.findViewById(R.id.title);
+        }
+    }
 }
diff --git a/src/com/android/launcher3/widget/picker/WidgetsListTableViewHolderBinder.java b/src/com/android/launcher3/widget/picker/WidgetsListTableViewHolderBinder.java
index 2355700..9c8684a 100644
--- a/src/com/android/launcher3/widget/picker/WidgetsListTableViewHolderBinder.java
+++ b/src/com/android/launcher3/widget/picker/WidgetsListTableViewHolderBinder.java
@@ -112,7 +112,9 @@
                 TableRow row = (TableRow) table.getChildAt(i);
                 row.setVisibility(View.VISIBLE);
                 WidgetCell widget = (WidgetCell) row.getChildAt(j);
+                widget.clear();
                 WidgetItem widgetItem = widgetItemsPerRow.get(j);
+                widget.setPreviewSize(widgetItem.spanX, widgetItem.spanY);
                 widget.applyFromCellItem(widgetItem, mWidgetPreviewLoader);
                 widget.setApplyBitmapDeferred(mApplyBitmapDeferred);
                 widget.ensurePreview();
diff --git a/src/com/android/launcher3/widget/picker/WidgetsRecyclerView.java b/src/com/android/launcher3/widget/picker/WidgetsRecyclerView.java
index 52e9496..d65a809 100644
--- a/src/com/android/launcher3/widget/picker/WidgetsRecyclerView.java
+++ b/src/com/android/launcher3/widget/picker/WidgetsRecyclerView.java
@@ -40,6 +40,7 @@
 
     private final Point mFastScrollerOffset = new Point();
     private boolean mTouchDownOnScroller;
+    private HeaderViewDimensionsProvider mHeaderViewDimensionsProvider;
 
     public WidgetsRecyclerView(Context context) {
         this(context, null);
@@ -135,8 +136,8 @@
     @Override
     protected int getAvailableScrollHeight() {
         View child = getChildAt(0);
-        return child.getMeasuredHeight() * mAdapter.getItemCount() - getScrollbarTrackHeight()
-                - mScrollbarTop;
+        return child.getMeasuredHeight() * mAdapter.getItemCount() + getScrollBarTop()
+                + getPaddingBottom() - mScrollbar.getHeight();
     }
 
     private boolean isModelNotReady() {
@@ -145,7 +146,9 @@
 
     @Override
     public int getScrollBarTop() {
-        return mScrollbarTop;
+        return mHeaderViewDimensionsProvider == null
+                ? mScrollbarTop
+                : mHeaderViewDimensionsProvider.getHeaderViewHeight() + mScrollbarTop;
     }
 
     @Override
@@ -171,4 +174,21 @@
     @Override
     public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
     }
+
+    public void setHeaderViewDimensionsProvider(
+            HeaderViewDimensionsProvider headerViewDimensionsProvider) {
+        mHeaderViewDimensionsProvider = headerViewDimensionsProvider;
+    }
+
+    /**
+     * Provides dimensions of the header view that is shown at the top of a
+     * {@link WidgetsRecyclerView}.
+     */
+    public interface HeaderViewDimensionsProvider {
+        /**
+         * Returns the height, in pixels, of the header view that is shown at the top of a
+         * {@link WidgetsRecyclerView}.
+         */
+        int getHeaderViewHeight();
+    }
 }
diff --git a/tests/tapl/com/android/launcher3/tapl/Launchable.java b/tests/tapl/com/android/launcher3/tapl/Launchable.java
index 3fc83ff..c4a566b 100644
--- a/tests/tapl/com/android/launcher3/tapl/Launchable.java
+++ b/tests/tapl/com/android/launcher3/tapl/Launchable.java
@@ -67,7 +67,7 @@
                 () -> "Launching an app didn't open a new window: " + label);
 
         mLauncher.assertTrue(
-                "App didn't start: " + label,
+                "App didn't start: " + label + " (" + selector + ")",
                 TestHelpers.wait(Until.hasObject(selector), LauncherInstrumentation.WAIT_TIME_MS));
         return new Background(mLauncher);
     }
diff --git a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
index 6afadfa..f279a82 100644
--- a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
+++ b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
@@ -365,9 +365,11 @@
 
             if (hasSystemUiObject("keyguard_status_view")) return "Phone is locked";
 
-            if (!mDevice.hasObject(By.textStartsWith(""))) return "Screen is empty";
+            if (!mDevice.wait(Until.hasObject(By.textStartsWith("")), WAIT_TIME_MS)) {
+                return "Screen is empty";
+            }
 
-            final String navigationModeError = getNavigationModeMismatchError();
+            final String navigationModeError = getNavigationModeMismatchError(true);
             if (navigationModeError != null) return navigationModeError;
         } catch (Throwable e) {
             Log.w(TAG, "getSystemAnomalyMessage failed", e);
@@ -535,17 +537,28 @@
         mExpectedRotation = expectedRotation;
     }
 
-    public String getNavigationModeMismatchError() {
+    public String getNavigationModeMismatchError(boolean waitForCorrectState) {
+        final int waitTime = waitForCorrectState ? WAIT_TIME_MS : 0;
         final NavigationModel navigationModel = getNavigationModel();
-        final boolean hasRecentsButton = hasSystemUiObject("recent_apps");
-        final boolean hasHomeButton = hasSystemUiObject("home");
-        if ((navigationModel == NavigationModel.THREE_BUTTON) != hasRecentsButton) {
-            return "Presence of recents button doesn't match the interaction mode, mode="
-                    + navigationModel.name() + ", hasRecents=" + hasRecentsButton;
+
+        if (navigationModel == NavigationModel.THREE_BUTTON) {
+            if (!mDevice.wait(Until.hasObject(By.res(SYSTEMUI_PACKAGE, "recent_apps")), waitTime)) {
+                return "Recents button not present in 3-button mode";
+            }
+        } else {
+            if (!mDevice.wait(Until.gone(By.res(SYSTEMUI_PACKAGE, "recent_apps")), waitTime)) {
+                return "Recents button is present in non-3-button mode";
+            }
         }
-        if ((navigationModel != NavigationModel.ZERO_BUTTON) != hasHomeButton) {
-            return "Presence of home button doesn't match the interaction mode, mode="
-                    + navigationModel.name() + ", hasHome=" + hasHomeButton;
+
+        if (navigationModel == NavigationModel.ZERO_BUTTON) {
+            if (!mDevice.wait(Until.gone(By.res(SYSTEMUI_PACKAGE, "home")), waitTime)) {
+                return "Home button is present in gestural mode";
+            }
+        } else {
+            if (!mDevice.wait(Until.hasObject(By.res(SYSTEMUI_PACKAGE, "home")), waitTime)) {
+                return "Home button not present in non-gestural mode";
+            }
         }
         return null;
     }
@@ -556,7 +569,7 @@
         assertEquals("Unexpected display rotation",
                 mExpectedRotation, mDevice.getDisplayRotation());
 
-        final String error = getNavigationModeMismatchError();
+        final String error = getNavigationModeMismatchError(true);
         assertTrue(error, error == null);
 
         log("verifyContainerType: " + containerType);
diff --git a/tests/tapl/com/android/launcher3/tapl/Workspace.java b/tests/tapl/com/android/launcher3/tapl/Workspace.java
index f0e686f..d43e235 100644
--- a/tests/tapl/com/android/launcher3/tapl/Workspace.java
+++ b/tests/tapl/com/android/launcher3/tapl/Workspace.java
@@ -110,7 +110,8 @@
                     TestProtocol.REQUEST_HOME_TO_ALL_APPS_SWIPE_HEIGHT).
                     getInt(TestProtocol.TEST_INFO_RESPONSE_FIELD);
             LauncherInstrumentation.log(
-                    "switchToAllApps: swipeHeight = " + swipeHeight + ", slop = "
+                    "switchToAllApps: deviceHeight = " + deviceHeight + ", startY = " + startY
+                            + ", swipeHeight = " + swipeHeight + ", slop = "
                             + mLauncher.getTouchSlop());
 
             mLauncher.swipeToState(