diff --git a/Android.mk b/Android.mk
index b8e6c85..15daf1f 100644
--- a/Android.mk
+++ b/Android.mk
@@ -53,7 +53,6 @@
 LOCAL_SDK_VERSION := current
 LOCAL_MIN_SDK_VERSION := 28
 LOCAL_MODULE := LauncherPluginLib
-LOCAL_PRIVILEGED_MODULE := true
 
 include $(BUILD_STATIC_JAVA_LIBRARY)
 
@@ -69,7 +68,7 @@
     androidx.recyclerview_recyclerview \
     androidx.dynamicanimation_dynamicanimation
 
-LOCAL_STATIC_JAVA_LIBRARIES := libPluginCore
+LOCAL_STATIC_JAVA_LIBRARIES := LauncherPluginLib
 
 LOCAL_SRC_FILES := \
     $(call all-proto-files-under, protos) \
diff --git a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
index ca12951..88c362d 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
@@ -43,7 +43,12 @@
     }
 
     public void addPluginListener(PluginListener<? extends Plugin> listener, Class<?> pluginClass) {
-        mPluginManager.addPluginListener(listener, pluginClass);
+        addPluginListener(listener, pluginClass, false);
+    }
+
+    public void addPluginListener(PluginListener<? extends Plugin> listener, Class<?> pluginClass,
+            boolean allowMultiple) {
+        mPluginManager.addPluginListener(listener, pluginClass, allowMultiple);
     }
 
     public void removePluginListener(PluginListener<? extends Plugin> listener) {
diff --git a/quickstep/src/com/android/quickstep/OverviewInteractionState.java b/quickstep/src/com/android/quickstep/OverviewInteractionState.java
index d71c08a..27f1399 100644
--- a/quickstep/src/com/android/quickstep/OverviewInteractionState.java
+++ b/quickstep/src/com/android/quickstep/OverviewInteractionState.java
@@ -15,23 +15,21 @@
  */
 package com.android.quickstep;
 
+import static com.android.quickstep.SwipeUpSetting.newSwipeUpSettingsObserver;
 import static com.android.systemui.shared.system.NavigationBarCompat.FLAG_DISABLE_QUICK_SCRUB;
 import static com.android.systemui.shared.system.NavigationBarCompat.FLAG_DISABLE_SWIPE_UP;
 import static com.android.systemui.shared.system.NavigationBarCompat.FLAG_SHOW_OVERVIEW_BUTTON;
-import static com.android.systemui.shared.system.SettingsCompat.SWIPE_UP_SETTING_NAME;
 
-import android.content.ContentResolver;
 import android.content.Context;
-import android.database.ContentObserver;
 import android.os.Handler;
 import android.os.Message;
 import android.os.RemoteException;
-import android.provider.Settings;
 import android.util.Log;
 
 import com.android.launcher3.Utilities;
 import com.android.launcher3.allapps.DiscoveryBounce;
 import com.android.launcher3.util.MainThreadInitializedObject;
+import com.android.launcher3.util.SecureSettingsObserver;
 import com.android.launcher3.util.UiThreadHelper;
 import com.android.systemui.shared.recents.ISystemUiProxy;
 
@@ -60,7 +58,7 @@
     private static final int MSG_SET_BACK_BUTTON_ALPHA = 201;
     private static final int MSG_SET_SWIPE_UP_ENABLED = 202;
 
-    private final SwipeUpGestureEnabledSettingObserver mSwipeUpSettingObserver;
+    private final SecureSettingsObserver mSwipeUpSettingObserver;
 
     private final Context mContext;
     private final Handler mUiHandler;
@@ -85,9 +83,11 @@
         mBgHandler = new Handler(UiThreadHelper.getBackgroundLooper(), this::handleBgMessage);
 
         if (SwipeUpSetting.isSwipeUpSettingAvailable()) {
-            mSwipeUpSettingObserver = new SwipeUpGestureEnabledSettingObserver(mUiHandler,
-                    context.getContentResolver());
+            mSwipeUpSettingObserver =
+                    newSwipeUpSettingsObserver(context, this::notifySwipeUpSettingChanged);
             mSwipeUpSettingObserver.register();
+            mSwipeUpEnabled = mSwipeUpSettingObserver.getValue();
+            resetHomeBounceSeenOnQuickstepEnabledFirstTime();
         } else {
             mSwipeUpSettingObserver = null;
             mSwipeUpEnabled = SwipeUpSetting.isSwipeUpEnabledDefaultValue();
@@ -192,34 +192,6 @@
                 sendToTarget();
     }
 
-    private class SwipeUpGestureEnabledSettingObserver extends ContentObserver {
-        private ContentResolver mResolver;
-        private final int defaultValue;
-
-        SwipeUpGestureEnabledSettingObserver(Handler handler, ContentResolver resolver) {
-            super(handler);
-            mResolver = resolver;
-            defaultValue = SwipeUpSetting.isSwipeUpEnabledDefaultValue() ? 1 : 0;
-        }
-
-        public void register() {
-            mResolver.registerContentObserver(Settings.Secure.getUriFor(SWIPE_UP_SETTING_NAME),
-                    false, this);
-            mSwipeUpEnabled = getValue();
-            resetHomeBounceSeenOnQuickstepEnabledFirstTime();
-        }
-
-        @Override
-        public void onChange(boolean selfChange) {
-            super.onChange(selfChange);
-            notifySwipeUpSettingChanged(getValue());
-        }
-
-        private boolean getValue() {
-            return Settings.Secure.getInt(mResolver, SWIPE_UP_SETTING_NAME, defaultValue) == 1;
-        }
-    }
-
     private void resetHomeBounceSeenOnQuickstepEnabledFirstTime() {
         if (mSwipeUpEnabled && !Utilities.getPrefs(mContext).getBoolean(
                 HAS_ENABLED_QUICKSTEP_ONCE, true)) {
diff --git a/quickstep/src/com/android/quickstep/SwipeUpSetting.java b/quickstep/src/com/android/quickstep/SwipeUpSetting.java
index 0f91f97..381ab9f 100644
--- a/quickstep/src/com/android/quickstep/SwipeUpSetting.java
+++ b/quickstep/src/com/android/quickstep/SwipeUpSetting.java
@@ -16,9 +16,15 @@
 
 package com.android.quickstep;
 
+import static com.android.systemui.shared.system.SettingsCompat.SWIPE_UP_SETTING_NAME;
+
+import android.content.Context;
 import android.content.res.Resources;
 import android.util.Log;
 
+import com.android.launcher3.util.SecureSettingsObserver;
+import com.android.launcher3.util.SecureSettingsObserver.OnChangeListener;
+
 public final class SwipeUpSetting {
     private static final String TAG = "SwipeUpSetting";
 
@@ -47,4 +53,10 @@
     public static boolean isSwipeUpEnabledDefaultValue() {
         return getSystemBooleanRes(SWIPE_UP_ENABLED_DEFAULT_RES_NAME);
     }
+
+    public static SecureSettingsObserver newSwipeUpSettingsObserver(Context context,
+            OnChangeListener listener) {
+        return new SecureSettingsObserver(context.getContentResolver(), listener,
+                SWIPE_UP_SETTING_NAME, isSwipeUpEnabledDefaultValue() ? 1 : 0);
+    }
 }
diff --git a/res/values-iw/strings.xml b/res/values-iw/strings.xml
index 9aff1ff..7de4388 100644
--- a/res/values-iw/strings.xml
+++ b/res/values-iw/strings.xml
@@ -65,10 +65,10 @@
     <string name="folder_hint_text" msgid="6617836969016293992">"תיקיה ללא שם"</string>
     <string name="disabled_app_label" msgid="6673129024321402780">"<xliff:g id="APP_NAME">%1$s</xliff:g> מושבתת"</string>
     <plurals name="badged_app_label" formatted="false" msgid="7948068486082879291">
-      <item quantity="two">לאפליקציה <xliff:g id="APP_NAME_2">%1$s</xliff:g> יש <xliff:g id="NOTIFICATION_COUNT_3">%2$d</xliff:g> הודעות</item>
-      <item quantity="many">לאפליקציה <xliff:g id="APP_NAME_2">%1$s</xliff:g> יש <xliff:g id="NOTIFICATION_COUNT_3">%2$d</xliff:g> הודעות</item>
-      <item quantity="other">לאפליקציה <xliff:g id="APP_NAME_2">%1$s</xliff:g> יש <xliff:g id="NOTIFICATION_COUNT_3">%2$d</xliff:g> הודעות</item>
-      <item quantity="one">לאפליקציה <xliff:g id="APP_NAME_0">%1$s</xliff:g> יש הודעה אחת (<xliff:g id="NOTIFICATION_COUNT_1">%2$d</xliff:g>)</item>
+      <item quantity="two">לאפליקציה <xliff:g id="APP_NAME_2">%1$s</xliff:g> יש <xliff:g id="NOTIFICATION_COUNT_3">%2$d</xliff:g> התראות</item>
+      <item quantity="many">לאפליקציה <xliff:g id="APP_NAME_2">%1$s</xliff:g> יש <xliff:g id="NOTIFICATION_COUNT_3">%2$d</xliff:g> התראות</item>
+      <item quantity="other">לאפליקציה <xliff:g id="APP_NAME_2">%1$s</xliff:g> יש <xliff:g id="NOTIFICATION_COUNT_3">%2$d</xliff:g> התראות</item>
+      <item quantity="one">לאפליקציה <xliff:g id="APP_NAME_0">%1$s</xliff:g> יש התראה אחת (<xliff:g id="NOTIFICATION_COUNT_1">%2$d</xliff:g>)</item>
     </plurals>
     <string name="default_scroll_format" msgid="7475544710230993317">"‏דף %1$d מתוך %2$d"</string>
     <string name="workspace_scroll_format" msgid="8458889198184077399">"‏מסך דף הבית %1$d מתוך %2$d"</string>
@@ -85,11 +85,11 @@
     <string name="msg_disabled_by_admin" msgid="6898038085516271325">"הושבת על ידי מנהל המערכת שלך"</string>
     <string name="allow_rotation_title" msgid="7728578836261442095">"אפשרות סיבוב של מסך דף הבית"</string>
     <string name="allow_rotation_desc" msgid="8662546029078692509">"כאשר הטלפון מסובב"</string>
-    <string name="icon_badging_title" msgid="874121399231955394">"סימני הודעות"</string>
+    <string name="icon_badging_title" msgid="874121399231955394">"סימני ההתראות"</string>
     <string name="icon_badging_desc_on" msgid="2627952638544674079">"מופעלת"</string>
     <string name="icon_badging_desc_off" msgid="5503319969924580241">"כבויה"</string>
-    <string name="title_missing_notification_access" msgid="7503287056163941064">"נדרשת גישה להודעות"</string>
-    <string name="msg_missing_notification_access" msgid="281113995110910548">"כדי להציג את סימני ההודעות, יש להפעיל הודעות מהאפליקציה <xliff:g id="NAME">%1$s</xliff:g>"</string>
+    <string name="title_missing_notification_access" msgid="7503287056163941064">"נדרשת גישה להתראות"</string>
+    <string name="msg_missing_notification_access" msgid="281113995110910548">"כדי להציג את סימני ההתראות,יש להפעיל התראות מהאפליקציה <xliff:g id="NAME">%1$s</xliff:g>"</string>
     <string name="title_change_settings" msgid="1376365968844349552">"שנה את ההגדרות"</string>
     <string name="icon_badging_service_title" msgid="2309733118428242174">"הצגה של סימן ההודעות"</string>
     <string name="auto_add_shortcuts_label" msgid="8222286205987725611">"הוספת סמל במסך דף הבית"</string>
@@ -137,7 +137,7 @@
     <string name="action_deep_shortcut" msgid="2864038805849372848">"קיצורי דרך"</string>
     <string name="shortcuts_menu_with_notifications_description" msgid="2676582286544232849">"קיצורי דרך והודעות"</string>
     <string name="action_dismiss_notification" msgid="5909461085055959187">"סגור"</string>
-    <string name="notification_dismissed" msgid="6002233469409822874">"ההודעה נסגרה"</string>
+    <string name="notification_dismissed" msgid="6002233469409822874">"ההתראה נסגרה"</string>
     <string name="all_apps_personal_tab" msgid="4190252696685155002">"אישיות"</string>
     <string name="all_apps_work_tab" msgid="4884822796154055118">"עבודה"</string>
     <string name="work_profile_toggle_label" msgid="3081029915775481146">"פרופיל עבודה"</string>
diff --git a/res/values-my/strings.xml b/res/values-my/strings.xml
index f400832..d5188c9 100644
--- a/res/values-my/strings.xml
+++ b/res/values-my/strings.xml
@@ -73,7 +73,7 @@
     <string name="workspace_new_page" msgid="257366611030256142">"ပင်မမျက်နှာပြင် စာမျက်နှာသစ်"</string>
     <string name="folder_opened" msgid="94695026776264709">"ဖွင့်ထားသောအကန့်, <xliff:g id="WIDTH">%1$d</xliff:g> နှင့် <xliff:g id="HEIGHT">%2$d</xliff:g>"</string>
     <string name="folder_tap_to_close" msgid="4625795376335528256">"ဖိုင်တွဲကို ပိတ်ရန် တို့ပါ"</string>
-    <string name="folder_tap_to_rename" msgid="4017685068016979677">"အမည်ပြောင်းခြင်းကို သိမ်းဆည်းရန် တို့ပါ"</string>
+    <string name="folder_tap_to_rename" msgid="4017685068016979677">"အမည်ပြောင်းခြင်းကို သိမ်းရန် တို့ပါ"</string>
     <string name="folder_closed" msgid="4100806530910930934">"ပိတ်ထားသောအကန့်"</string>
     <string name="folder_renamed" msgid="1794088362165669656">"ပြောင်းလဲလိုက်သော အကန့်အမည် <xliff:g id="NAME">%1$s</xliff:g>"</string>
     <string name="folder_name_format" msgid="6629239338071103179">"အကန့်အမည်: <xliff:g id="NAME">%1$s</xliff:g>"</string>
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 55d6984..0395fbb 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -2285,6 +2285,8 @@
         writer.print(" mPendingRequestArgs=" + mPendingRequestArgs);
         writer.println(" mPendingActivityResult=" + mPendingActivityResult);
         writer.println(" mRotationHelper: " + mRotationHelper);
+        // Extra logging for b/116853349
+        mDragLayer.dumpAlpha(writer);
         dumpMisc(writer);
 
         try {
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index b02182c..6bf5812 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -16,7 +16,7 @@
 
 package com.android.launcher3;
 
-import static com.android.launcher3.SettingsActivity.NOTIFICATION_BADGING;
+import static com.android.launcher3.util.SecureSettingsObserver.newNotificationSettingsObserver;
 
 import android.content.ComponentName;
 import android.content.ContentProviderClient;
@@ -33,7 +33,7 @@
 import com.android.launcher3.notification.NotificationListener;
 import com.android.launcher3.util.MainThreadInitializedObject;
 import com.android.launcher3.util.Preconditions;
-import com.android.launcher3.util.SettingsObserver;
+import com.android.launcher3.util.SecureSettingsObserver;
 
 public class LauncherAppState {
 
@@ -48,7 +48,7 @@
     private final IconCache mIconCache;
     private final WidgetPreviewLoader mWidgetCache;
     private final InvariantDeviceProfile mInvariantDeviceProfile;
-    private final SettingsObserver mNotificationBadgingObserver;
+    private final SecureSettingsObserver mNotificationBadgingObserver;
 
     public static LauncherAppState getInstance(final Context context) {
         return INSTANCE.get(context);
@@ -99,17 +99,17 @@
             mNotificationBadgingObserver = null;
         } else {
             // Register an observer to rebind the notification listener when badging is re-enabled.
-            mNotificationBadgingObserver = new SettingsObserver.Secure(
-                    mContext.getContentResolver()) {
-                @Override
-                public void onSettingChanged(boolean isNotificationBadgingEnabled) {
-                    if (isNotificationBadgingEnabled) {
-                        NotificationListener.requestRebind(new ComponentName(
-                                mContext, NotificationListener.class));
-                    }
-                }
-            };
-            mNotificationBadgingObserver.register(NOTIFICATION_BADGING);
+            mNotificationBadgingObserver =
+                    newNotificationSettingsObserver(mContext, this::onNotificationSettingsChanged);
+            mNotificationBadgingObserver.register();
+            mNotificationBadgingObserver.dispatchOnChange();
+        }
+    }
+
+    protected void onNotificationSettingsChanged(boolean isNotificationBadgingEnabled) {
+        if (isNotificationBadgingEnabled) {
+            NotificationListener.requestRebind(new ComponentName(
+                    mContext, NotificationListener.class));
         }
     }
 
diff --git a/src/com/android/launcher3/SettingsActivity.java b/src/com/android/launcher3/SettingsActivity.java
index 60edcda..a17f614 100644
--- a/src/com/android/launcher3/SettingsActivity.java
+++ b/src/com/android/launcher3/SettingsActivity.java
@@ -18,6 +18,7 @@
 
 import static com.android.launcher3.states.RotationHelper.ALLOW_ROTATION_PREFERENCE_KEY;
 import static com.android.launcher3.states.RotationHelper.getAllowRotationDefaultValue;
+import static com.android.launcher3.util.SecureSettingsObserver.newNotificationSettingsObserver;
 
 import android.annotation.TargetApi;
 import android.app.Activity;
@@ -25,7 +26,6 @@
 import android.app.Dialog;
 import android.app.DialogFragment;
 import android.app.Fragment;
-import android.app.FragmentManager;
 import android.content.ComponentName;
 import android.content.ContentResolver;
 import android.content.Context;
@@ -47,7 +47,7 @@
 import com.android.launcher3.graphics.IconShapeOverride;
 import com.android.launcher3.notification.NotificationListener;
 import com.android.launcher3.util.ListViewHighlighter;
-import com.android.launcher3.util.SettingsObserver;
+import com.android.launcher3.util.SecureSettingsObserver;
 import com.android.launcher3.views.ButtonPreference;
 
 import java.util.Objects;
@@ -61,8 +61,6 @@
     private static final String FLAGS_PREFERENCE_KEY = "flag_toggler";
 
     private static final String ICON_BADGING_PREFERENCE_KEY = "pref_icon_badging";
-    /** Hidden field Settings.Secure.NOTIFICATION_BADGING */
-    public static final String NOTIFICATION_BADGING = "notification_badging";
     /** Hidden field Settings.Secure.ENABLED_NOTIFICATION_LISTENERS */
     private static final String NOTIFICATION_ENABLED_LISTENERS = "enabled_notification_listeners";
 
@@ -114,7 +112,7 @@
      */
     public static class LauncherSettingsFragment extends PreferenceFragment {
 
-        private IconBadgingObserver mIconBadgingObserver;
+        private SecureSettingsObserver mIconBadgingObserver;
 
         private String mPreferenceKey;
         private boolean mPreferenceHighlighted = false;
@@ -147,9 +145,14 @@
                 getPreferenceScreen().removePreference(iconBadgingPref);
             } else {
                 // Listen to system notification badge settings while this UI is active.
-                mIconBadgingObserver = new IconBadgingObserver(
-                        iconBadgingPref, resolver, getFragmentManager());
-                mIconBadgingObserver.register(NOTIFICATION_BADGING, NOTIFICATION_ENABLED_LISTENERS);
+                mIconBadgingObserver = newNotificationSettingsObserver(
+                        getActivity(), new IconBadgingObserver(iconBadgingPref, resolver));
+                mIconBadgingObserver.register();
+                // Also listen if notification permission changes
+                mIconBadgingObserver.getResolver().registerContentObserver(
+                        Settings.Secure.getUriFor(NOTIFICATION_ENABLED_LISTENERS), false,
+                        mIconBadgingObserver);
+                mIconBadgingObserver.dispatchOnChange();
             }
 
             Preference iconShapeOverride = findPreference(IconShapeOverride.KEY_PREFERENCE);
@@ -255,22 +258,18 @@
      * Content observer which listens for system badging setting changes,
      * and updates the launcher badging setting subtext accordingly.
      */
-    private static class IconBadgingObserver extends SettingsObserver.Secure {
+    private static class IconBadgingObserver implements SecureSettingsObserver.OnChangeListener {
 
         private final ButtonPreference mBadgingPref;
         private final ContentResolver mResolver;
-        private final FragmentManager mFragmentManager;
 
-        public IconBadgingObserver(ButtonPreference badgingPref, ContentResolver resolver,
-                FragmentManager fragmentManager) {
-            super(resolver);
+        public IconBadgingObserver(ButtonPreference badgingPref, ContentResolver resolver) {
             mBadgingPref = badgingPref;
             mResolver = resolver;
-            mFragmentManager = fragmentManager;
         }
 
         @Override
-        public void onSettingChanged(boolean enabled) {
+        public void onSettingsChanged(boolean enabled) {
             int summary = enabled ? R.string.icon_badging_desc_on : R.string.icon_badging_desc_off;
 
             boolean serviceEnabled = true;
diff --git a/src/com/android/launcher3/allapps/FloatingHeaderView.java b/src/com/android/launcher3/allapps/FloatingHeaderView.java
index 5348349..90e195b 100644
--- a/src/com/android/launcher3/allapps/FloatingHeaderView.java
+++ b/src/com/android/launcher3/allapps/FloatingHeaderView.java
@@ -25,16 +25,22 @@
 import android.view.ViewGroup;
 import android.view.animation.Interpolator;
 import android.widget.LinearLayout;
-
-import com.android.launcher3.R;
-import com.android.launcher3.anim.PropertySetter;
-
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.recyclerview.widget.RecyclerView;
+import com.android.launcher3.R;
+import com.android.launcher3.anim.PropertySetter;
+import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
+import com.android.systemui.plugins.AllAppsRow;
+import com.android.systemui.plugins.PluginListener;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
 
 public class FloatingHeaderView extends LinearLayout implements
-        ValueAnimator.AnimatorUpdateListener {
+        ValueAnimator.AnimatorUpdateListener, PluginListener<AllAppsRow> {
 
     private final Rect mClip = new Rect(0, 0, Integer.MAX_VALUE, Integer.MAX_VALUE);
     private final ValueAnimator mAnimator = ValueAnimator.ofInt(0, 0);
@@ -64,6 +70,9 @@
     private AllAppsRecyclerView mMainRV;
     private AllAppsRecyclerView mWorkRV;
     private AllAppsRecyclerView mCurrentRV;
+    protected final Map<AllAppsRow, View> mPluginRows;
+    // Contains just the values of the above map so we can iterate without extracting a new list.
+    protected final List<View> mPluginRowViews;
     private ViewGroup mParent;
     private boolean mHeaderCollapsed;
     private int mSnappedScrolledY;
@@ -82,6 +91,8 @@
 
     public FloatingHeaderView(@NonNull Context context, @Nullable AttributeSet attrs) {
         super(context, attrs);
+        mPluginRows = new HashMap<>();
+        mPluginRowViews = new ArrayList<>();
     }
 
     @Override
@@ -90,6 +101,38 @@
         mTabLayout = findViewById(R.id.tabs);
     }
 
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        PluginManagerWrapper.INSTANCE.get(getContext()).addPluginListener(this,
+                AllAppsRow.class, true /* allowMultiple */);
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        PluginManagerWrapper.INSTANCE.get(getContext()).removePluginListener(this);
+    }
+
+    @Override
+    public void onPluginConnected(AllAppsRow allAppsRowPlugin, Context context) {
+        mPluginRows.put(allAppsRowPlugin, null);
+        setupPluginRows();
+        allAppsRowPlugin.setOnHeightUpdatedListener(this::onPluginRowHeightUpdated);
+    }
+
+    protected void onPluginRowHeightUpdated() {
+    }
+
+    @Override
+    public void onPluginDisconnected(AllAppsRow plugin) {
+        View pluginRowView = mPluginRows.get(plugin);
+        removeView(pluginRowView);
+        mPluginRows.remove(plugin);
+        mPluginRowViews.remove(pluginRowView);
+        onPluginRowHeightUpdated();
+    }
+
     public void setup(AllAppsContainerView.AdapterHolder[] mAH, boolean tabsHidden) {
         mTabsHidden = tabsHidden;
         mTabLayout.setVisibility(tabsHidden ? View.GONE : View.VISIBLE);
@@ -97,9 +140,24 @@
         mWorkRV = setupRV(mWorkRV, mAH[AllAppsContainerView.AdapterHolder.WORK].recyclerView);
         mParent = (ViewGroup) mMainRV.getParent();
         setMainActive(mMainRVActive || mWorkRV == null);
+        setupPluginRows();
         reset(false);
     }
 
+    private void setupPluginRows() {
+        for (Map.Entry<AllAppsRow, View> rowPluginEntry : mPluginRows.entrySet()) {
+            if (rowPluginEntry.getValue() == null) {
+                View pluginRow = rowPluginEntry.getKey().setup(this);
+                addView(pluginRow, indexOfChild(mTabLayout));
+                rowPluginEntry.setValue(pluginRow);
+                mPluginRowViews.add(pluginRow);
+            }
+        }
+        for (View plugin : mPluginRowViews) {
+            plugin.setVisibility(mHeaderCollapsed ? GONE : VISIBLE);
+        }
+    }
+
     private AllAppsRecyclerView setupRV(AllAppsRecyclerView old, AllAppsRecyclerView updated) {
         if (old != updated && updated != null ) {
             updated.addOnScrollListener(mOnScrollListener);
diff --git a/src/com/android/launcher3/icons/BaseIconFactory.java b/src/com/android/launcher3/icons/BaseIconFactory.java
new file mode 100644
index 0000000..db723b7
--- /dev/null
+++ b/src/com/android/launcher3/icons/BaseIconFactory.java
@@ -0,0 +1,303 @@
+package com.android.launcher3.icons;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.PaintFlagsDrawFilter;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.graphics.drawable.AdaptiveIconDrawable;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.Drawable;
+import android.os.Build;
+import android.os.Process;
+import android.os.UserHandle;
+
+import com.android.launcher3.R;
+
+import static android.graphics.Paint.DITHER_FLAG;
+import static android.graphics.Paint.FILTER_BITMAP_FLAG;
+import static com.android.launcher3.icons.ShadowGenerator.BLUR_FACTOR;
+
+/**
+ * This class will be moved to androidx library. There shouldn't be any dependency outside
+ * this package.
+ */
+public class BaseIconFactory {
+
+    private static final int DEFAULT_WRAPPER_BACKGROUND = Color.WHITE;
+    public static final boolean ATLEAST_OREO = Build.VERSION.SDK_INT >= Build.VERSION_CODES.O;
+
+    private final Rect mOldBounds = new Rect();
+    private final Context mContext;
+    private final Canvas mCanvas;
+    private final PackageManager mPm;
+    private final ColorExtractor mColorExtractor;
+    private boolean mDisableColorExtractor;
+
+    private int mFillResIconDpi;
+    private int mIconBitmapSize;
+
+    private IconNormalizer mNormalizer;
+    private ShadowGenerator mShadowGenerator;
+
+    private Drawable mWrapperIcon;
+    private int mWrapperBackgroundColor;
+
+    protected BaseIconFactory(Context context, int fillResIconDpi, int iconBitmapSize) {
+        mContext = context.getApplicationContext();
+
+        mFillResIconDpi = fillResIconDpi;
+        mIconBitmapSize = iconBitmapSize;
+
+        mPm = mContext.getPackageManager();
+        mColorExtractor = new ColorExtractor();
+
+        mCanvas = new Canvas();
+        mCanvas.setDrawFilter(new PaintFlagsDrawFilter(DITHER_FLAG, FILTER_BITMAP_FLAG));
+    }
+
+    protected void clear() {
+        mWrapperBackgroundColor = DEFAULT_WRAPPER_BACKGROUND;
+        mDisableColorExtractor = false;
+    }
+
+    public ShadowGenerator getShadowGenerator() {
+        if (mShadowGenerator == null) {
+            mShadowGenerator = new ShadowGenerator(mContext);
+        }
+        return mShadowGenerator;
+    }
+
+    public IconNormalizer getNormalizer() {
+        if (mNormalizer == null) {
+            mNormalizer = new IconNormalizer(mContext);
+        }
+        return mNormalizer;
+    }
+
+    public BitmapInfo createIconBitmap(Intent.ShortcutIconResource iconRes) {
+        try {
+            Resources resources = mPm.getResourcesForApplication(iconRes.packageName);
+            if (resources != null) {
+                final int id = resources.getIdentifier(iconRes.resourceName, null, null);
+                // do not stamp old legacy shortcuts as the app may have already forgotten about it
+                return createBadgedIconBitmap(
+                        resources.getDrawableForDensity(id, mFillResIconDpi),
+                        Process.myUserHandle() /* only available on primary user */,
+                        false /* do not apply legacy treatment */);
+            }
+        } catch (Exception e) {
+            // Icon not found.
+        }
+        return null;
+    }
+
+    public BitmapInfo createIconBitmap(Bitmap icon) {
+        if (mIconBitmapSize == icon.getWidth() && mIconBitmapSize == icon.getHeight()) {
+            return BitmapInfo.fromBitmap(icon);
+        }
+        return BitmapInfo.fromBitmap(
+                createIconBitmap(new BitmapDrawable(mContext.getResources(), icon), 1f));
+    }
+
+    public BitmapInfo createBadgedIconBitmap(Drawable icon, UserHandle user,
+            boolean shrinkNonAdaptiveIcons) {
+        return createBadgedIconBitmap(icon, user, shrinkNonAdaptiveIcons, false, null);
+    }
+
+    public BitmapInfo createBadgedIconBitmap(Drawable icon, UserHandle user,
+            boolean shrinkNonAdaptiveIcons, boolean isInstantApp) {
+        return createBadgedIconBitmap(icon, user, shrinkNonAdaptiveIcons, isInstantApp, null);
+    }
+
+    /**
+     * Creates bitmap using the source drawable and various parameters.
+     * The bitmap is visually normalized with other icons and has enough spacing to add shadow.
+     *
+     * @param icon                      source of the icon
+     * @param user                      info can be used for a badge
+     * @param shrinkNonAdaptiveIcons    {@code true} if non adaptive icons should be treated
+     * @param isInstantApp              info can be used for a badge
+     * @param scale                     returns the scale result from normalization
+     * @return a bitmap suitable for disaplaying as an icon at various system UIs.
+     */
+    public BitmapInfo createBadgedIconBitmap(Drawable icon, UserHandle user,
+            boolean shrinkNonAdaptiveIcons, boolean isInstantApp, float[] scale) {
+        if (scale == null) {
+            scale = new float[1];
+        }
+        icon = normalizeAndWrapToAdaptiveIcon(icon, shrinkNonAdaptiveIcons, null, scale);
+        Bitmap bitmap = createIconBitmap(icon, scale[0]);
+        if (ATLEAST_OREO && icon instanceof AdaptiveIconDrawable) {
+            mCanvas.setBitmap(bitmap);
+            getShadowGenerator().recreateIcon(Bitmap.createBitmap(bitmap), mCanvas);
+            mCanvas.setBitmap(null);
+        }
+
+        final Bitmap result;
+        if (user != null && !Process.myUserHandle().equals(user)) {
+            BitmapDrawable drawable = new FixedSizeBitmapDrawable(bitmap);
+            Drawable badged = mPm.getUserBadgedIcon(drawable, user);
+            if (badged instanceof BitmapDrawable) {
+                result = ((BitmapDrawable) badged).getBitmap();
+            } else {
+                result = createIconBitmap(badged, 1f);
+            }
+        } else if (isInstantApp) {
+            badgeWithDrawable(bitmap, mContext.getDrawable(R.drawable.ic_instant_app_badge));
+            result = bitmap;
+        } else {
+            result = bitmap;
+        }
+        return BitmapInfo.fromBitmap(result, mDisableColorExtractor ? null : mColorExtractor);
+    }
+
+    public Bitmap createScaledBitmapWithoutShadow(Drawable icon, boolean shrinkNonAdaptiveIcons) {
+        RectF iconBounds = new RectF();
+        float[] scale = new float[1];
+        icon = normalizeAndWrapToAdaptiveIcon(icon, shrinkNonAdaptiveIcons, iconBounds, scale);
+        return createIconBitmap(icon,
+                Math.min(scale[0], ShadowGenerator.getScaleForBounds(iconBounds)));
+    }
+
+    /**
+     * Sets the background color used for wrapped adaptive icon
+     */
+    public void setWrapperBackgroundColor(int color) {
+        mWrapperBackgroundColor = (Color.alpha(color) < 255) ? DEFAULT_WRAPPER_BACKGROUND : color;
+    }
+
+    /**
+     * Disables the dominant color extraction for all icons loaded.
+     */
+    public void disableColorExtraction() {
+        mDisableColorExtractor = true;
+    }
+
+    private Drawable normalizeAndWrapToAdaptiveIcon(Drawable icon, boolean shrinkNonAdaptiveIcons,
+            RectF outIconBounds, float[] outScale) {
+        float scale = 1f;
+
+        if (shrinkNonAdaptiveIcons) {
+            boolean[] outShape = new boolean[1];
+            if (mWrapperIcon == null) {
+                mWrapperIcon = mContext.getDrawable(R.drawable.adaptive_icon_drawable_wrapper)
+                        .mutate();
+            }
+            AdaptiveIconDrawable dr = (AdaptiveIconDrawable) mWrapperIcon;
+            dr.setBounds(0, 0, 1, 1);
+            scale = getNormalizer().getScale(icon, outIconBounds, dr.getIconMask(), outShape);
+            if (ATLEAST_OREO && !outShape[0] && !(icon instanceof AdaptiveIconDrawable)) {
+                FixedScaleDrawable fsd = ((FixedScaleDrawable) dr.getForeground());
+                fsd.setDrawable(icon);
+                fsd.setScale(scale);
+                icon = dr;
+                scale = getNormalizer().getScale(icon, outIconBounds, null, null);
+
+                ((ColorDrawable) dr.getBackground()).setColor(mWrapperBackgroundColor);
+            }
+        } else {
+            scale = getNormalizer().getScale(icon, outIconBounds, null, null);
+        }
+
+        outScale[0] = scale;
+        return icon;
+    }
+
+    /**
+     * Adds the {@param badge} on top of {@param target} using the badge dimensions.
+     */
+    public void badgeWithDrawable(Bitmap target, Drawable badge) {
+        mCanvas.setBitmap(target);
+        badgeWithDrawable(mCanvas, badge);
+        mCanvas.setBitmap(null);
+    }
+
+    /**
+     * Adds the {@param badge} on top of {@param target} using the badge dimensions.
+     */
+    public void badgeWithDrawable(Canvas target, Drawable badge) {
+        int badgeSize = mContext.getResources().getDimensionPixelSize(R.dimen.profile_badge_size);
+        badge.setBounds(mIconBitmapSize - badgeSize, mIconBitmapSize - badgeSize,
+                mIconBitmapSize, mIconBitmapSize);
+        badge.draw(target);
+    }
+
+    /**
+     * @param scale the scale to apply before drawing {@param icon} on the canvas
+     */
+    private Bitmap createIconBitmap(Drawable icon, float scale) {
+        Bitmap bitmap = Bitmap.createBitmap(mIconBitmapSize, mIconBitmapSize,
+                Bitmap.Config.ARGB_8888);
+        mCanvas.setBitmap(bitmap);
+        mOldBounds.set(icon.getBounds());
+
+        if (ATLEAST_OREO && icon instanceof AdaptiveIconDrawable) {
+            int offset = Math.max((int) Math.ceil(BLUR_FACTOR * mIconBitmapSize),
+                    Math.round(mIconBitmapSize * (1 - scale) / 2 ));
+            icon.setBounds(offset, offset, mIconBitmapSize - offset, mIconBitmapSize - offset);
+            icon.draw(mCanvas);
+        } else {
+            if (icon instanceof BitmapDrawable) {
+                BitmapDrawable bitmapDrawable = (BitmapDrawable) icon;
+                Bitmap b = bitmapDrawable.getBitmap();
+                if (bitmap != null && b.getDensity() == Bitmap.DENSITY_NONE) {
+                    bitmapDrawable.setTargetDensity(mContext.getResources().getDisplayMetrics());
+                }
+            }
+            int width = mIconBitmapSize;
+            int height = mIconBitmapSize;
+
+            int intrinsicWidth = icon.getIntrinsicWidth();
+            int intrinsicHeight = icon.getIntrinsicHeight();
+            if (intrinsicWidth > 0 && intrinsicHeight > 0) {
+                // Scale the icon proportionally to the icon dimensions
+                final float ratio = (float) intrinsicWidth / intrinsicHeight;
+                if (intrinsicWidth > intrinsicHeight) {
+                    height = (int) (width / ratio);
+                } else if (intrinsicHeight > intrinsicWidth) {
+                    width = (int) (height * ratio);
+                }
+            }
+            final int left = (mIconBitmapSize - width) / 2;
+            final int top = (mIconBitmapSize - height) / 2;
+            icon.setBounds(left, top, left + width, top + height);
+            mCanvas.save();
+            mCanvas.scale(scale, scale, mIconBitmapSize / 2, mIconBitmapSize / 2);
+            icon.draw(mCanvas);
+            mCanvas.restore();
+
+        }
+        icon.setBounds(mOldBounds);
+        mCanvas.setBitmap(null);
+        return bitmap;
+    }
+
+    /**
+     * An extension of {@link BitmapDrawable} which returns the bitmap pixel size as intrinsic size.
+     * This allows the badging to be done based on the action bitmap size rather than
+     * the scaled bitmap size.
+     */
+    private static class FixedSizeBitmapDrawable extends BitmapDrawable {
+
+        public FixedSizeBitmapDrawable(Bitmap bitmap) {
+            super(null, bitmap);
+        }
+
+        @Override
+        public int getIntrinsicHeight() {
+            return getBitmap().getWidth();
+        }
+
+        @Override
+        public int getIntrinsicWidth() {
+            return getBitmap().getWidth();
+        }
+    }
+}
diff --git a/src/com/android/launcher3/icons/LauncherIcons.java b/src/com/android/launcher3/icons/LauncherIcons.java
index 244654b..69614a3 100644
--- a/src/com/android/launcher3/icons/LauncherIcons.java
+++ b/src/com/android/launcher3/icons/LauncherIcons.java
@@ -16,29 +16,11 @@
 
 package com.android.launcher3.icons;
 
-import static android.graphics.Paint.DITHER_FLAG;
-import static android.graphics.Paint.FILTER_BITMAP_FLAG;
-
-import static com.android.launcher3.icons.ShadowGenerator.BLUR_FACTOR;
-
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
-import android.content.Intent.ShortcutIconResource;
-import android.content.pm.PackageManager;
-import android.content.res.Resources;
 import android.graphics.Bitmap;
-import android.graphics.Canvas;
-import android.graphics.Color;
-import android.graphics.Paint;
-import android.graphics.PaintFlagsDrawFilter;
-import android.graphics.Rect;
-import android.graphics.RectF;
-import android.graphics.drawable.AdaptiveIconDrawable;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
-import android.graphics.drawable.PaintDrawable;
 import android.os.Build;
 import android.os.Process;
 import android.os.UserHandle;
@@ -49,7 +31,6 @@
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.ItemInfoWithIcon;
 import com.android.launcher3.LauncherAppState;
-import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.model.PackageItemInfo;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
@@ -60,14 +41,14 @@
 import androidx.annotation.Nullable;
 
 /**
- * Helper methods for generating various launcher icons
+ * Wrapper class to provide access to {@link BaseIconFactory} and also to provide pool of this class
+ * that are threadsafe.
  */
-public class LauncherIcons implements AutoCloseable {
+public class LauncherIcons extends BaseIconFactory implements AutoCloseable {
 
-    private static final int DEFAULT_WRAPPER_BACKGROUND = Color.WHITE;
-
-    public static final Object sPoolSync = new Object();
+    private static final Object sPoolSync = new Object();
     private static LauncherIcons sPool;
+    private LauncherIcons next;
 
     /**
      * Return a new Message instance from the global pool. Allows us to
@@ -82,7 +63,8 @@
                 return m;
             }
         }
-        return new LauncherIcons(context);
+        InvariantDeviceProfile idp = LauncherAppState.getIDP(context);
+        return new LauncherIcons(context, idp.fillResIconDpi, idp.iconBitmapSize);
     }
 
     /**
@@ -91,8 +73,7 @@
     public void recycle() {
         synchronized (sPoolSync) {
             // Clear any temporary state variables
-            mWrapperBackgroundColor = DEFAULT_WRAPPER_BACKGROUND;
-            mDisableColorExtractor = false;
+            clear();
 
             next = sPool;
             sPool = this;
@@ -104,259 +85,41 @@
         recycle();
     }
 
-    private final Rect mOldBounds = new Rect();
     private final Context mContext;
-    private final Canvas mCanvas;
-    private final PackageManager mPm;
-    private final ColorExtractor mColorExtractor;
-    private boolean mDisableColorExtractor;
-
     private final int mFillResIconDpi;
     private final int mIconBitmapSize;
 
-    private IconNormalizer mNormalizer;
-    private ShadowGenerator mShadowGenerator;
-
-    private Drawable mWrapperIcon;
-    private int mWrapperBackgroundColor = DEFAULT_WRAPPER_BACKGROUND;
-
-    // sometimes we store linked lists of these things
-    private LauncherIcons next;
-
-    private LauncherIcons(Context context) {
+    private LauncherIcons(Context context, int fillResIconDpi, int iconBitmapSize) {
+        super(context, fillResIconDpi, iconBitmapSize);
         mContext = context.getApplicationContext();
-        mPm = mContext.getPackageManager();
-        mColorExtractor = new ColorExtractor();
-
-        InvariantDeviceProfile idp = LauncherAppState.getIDP(mContext);
-        mFillResIconDpi = idp.fillResIconDpi;
-        mIconBitmapSize = idp.iconBitmapSize;
-
-        mCanvas = new Canvas();
-        mCanvas.setDrawFilter(new PaintFlagsDrawFilter(DITHER_FLAG, FILTER_BITMAP_FLAG));
+        mFillResIconDpi = fillResIconDpi;
+        mIconBitmapSize = iconBitmapSize;
     }
 
-    public ShadowGenerator getShadowGenerator() {
-        if (mShadowGenerator == null) {
-            mShadowGenerator = new ShadowGenerator(mContext);
-        }
-        return mShadowGenerator;
+    public BitmapInfo createBadgedIconBitmap(Drawable icon, UserHandle user,
+            int iconAppTargetSdk) {
+        return createBadgedIconBitmap(icon, user, iconAppTargetSdk, false);
     }
 
-    public IconNormalizer getNormalizer() {
-        if (mNormalizer == null) {
-            mNormalizer = new IconNormalizer(mContext);
-        }
-        return mNormalizer;
-    }
-
-    /**
-     * Returns a bitmap suitable for the all apps view. If the package or the resource do not
-     * exist, it returns null.
-     */
-    public BitmapInfo createIconBitmap(ShortcutIconResource iconRes) {
-        try {
-            Resources resources = mPm.getResourcesForApplication(iconRes.packageName);
-            if (resources != null) {
-                final int id = resources.getIdentifier(iconRes.resourceName, null, null);
-                // do not stamp old legacy shortcuts as the app may have already forgotten about it
-                return createBadgedIconBitmap(
-                        resources.getDrawableForDensity(id, mFillResIconDpi),
-                        Process.myUserHandle() /* only available on primary user */,
-                        0 /* do not apply legacy treatment */);
-            }
-        } catch (Exception e) {
-            // Icon not found.
-        }
-        return null;
-    }
-
-    /**
-     * Returns a bitmap which is of the appropriate size to be displayed as an icon
-     */
-    public BitmapInfo createIconBitmap(Bitmap icon) {
-        if (mIconBitmapSize == icon.getWidth() && mIconBitmapSize == icon.getHeight()) {
-            return BitmapInfo.fromBitmap(icon);
-        }
-        return BitmapInfo.fromBitmap(
-                createIconBitmap(new BitmapDrawable(mContext.getResources(), icon), 1f));
-    }
-
-    /**
-     * Returns a bitmap suitable for displaying as an icon at various launcher UIs like all apps
-     * view or workspace. The icon is badged for {@param user}.
-     * The bitmap is also visually normalized with other icons.
-     */
-    public BitmapInfo createBadgedIconBitmap(Drawable icon, UserHandle user, int iconAppTargetSdk) {
-        return createBadgedIconBitmap(icon, user, iconAppTargetSdk, false, null);
-    }
-
-    public BitmapInfo createBadgedIconBitmap(Drawable icon, UserHandle user, int iconAppTargetSdk,
-            boolean isInstantApp) {
+    public BitmapInfo createBadgedIconBitmap(Drawable icon, UserHandle user,
+            int iconAppTargetSdk, boolean isInstantApp) {
         return createBadgedIconBitmap(icon, user, iconAppTargetSdk, isInstantApp, null);
     }
 
-    /**
-     * Returns a bitmap suitable for displaying as an icon at various launcher UIs like all apps
-     * view or workspace. The icon is badged for {@param user}.
-     * The bitmap is also visually normalized with other icons.
-     */
-    public BitmapInfo createBadgedIconBitmap(Drawable icon, UserHandle user, int iconAppTargetSdk,
-            boolean isInstantApp, float[] scale) {
-        if (scale == null) {
-            scale = new float[1];
-        }
-        icon = normalizeAndWrapToAdaptiveIcon(icon, iconAppTargetSdk, null, scale);
-        Bitmap bitmap = createIconBitmap(icon, scale[0]);
-        if (Utilities.ATLEAST_OREO && icon instanceof AdaptiveIconDrawable) {
-            mCanvas.setBitmap(bitmap);
-            getShadowGenerator().recreateIcon(Bitmap.createBitmap(bitmap), mCanvas);
-            mCanvas.setBitmap(null);
-        }
-
-        final Bitmap result;
-        if (user != null && !Process.myUserHandle().equals(user)) {
-            BitmapDrawable drawable = new FixedSizeBitmapDrawable(bitmap);
-            Drawable badged = mPm.getUserBadgedIcon(drawable, user);
-            if (badged instanceof BitmapDrawable) {
-                result = ((BitmapDrawable) badged).getBitmap();
-            } else {
-                result = createIconBitmap(badged, 1f);
-            }
-        } else if (isInstantApp) {
-            badgeWithDrawable(bitmap, mContext.getDrawable(R.drawable.ic_instant_app_badge));
-            result = bitmap;
-        } else {
-            result = bitmap;
-        }
-        return BitmapInfo.fromBitmap(result, mDisableColorExtractor ? null : mColorExtractor);
+    public BitmapInfo createBadgedIconBitmap(Drawable icon, UserHandle user,
+            int iconAppTargetSdk, boolean isInstantApp, float[] scale) {
+        boolean shrinkNonAdaptiveIcons = Utilities.ATLEAST_P ||
+                (Utilities.ATLEAST_OREO && iconAppTargetSdk >= Build.VERSION_CODES.O);
+        return createBadgedIconBitmap(icon, user, shrinkNonAdaptiveIcons, isInstantApp, scale);
     }
 
-    /**
-     * Creates a normalized bitmap suitable for the all apps view. The bitmap is also visually
-     * normalized with other icons and has enough spacing to add shadow.
-     */
     public Bitmap createScaledBitmapWithoutShadow(Drawable icon, int iconAppTargetSdk) {
-        RectF iconBounds = new RectF();
-        float[] scale = new float[1];
-        icon = normalizeAndWrapToAdaptiveIcon(icon, iconAppTargetSdk, iconBounds, scale);
-        return createIconBitmap(icon,
-                Math.min(scale[0], ShadowGenerator.getScaleForBounds(iconBounds)));
+        boolean shrinkNonAdaptiveIcons = Utilities.ATLEAST_P ||
+                (Utilities.ATLEAST_OREO && iconAppTargetSdk >= Build.VERSION_CODES.O);
+        return  createScaledBitmapWithoutShadow(icon, shrinkNonAdaptiveIcons);
     }
 
-    /**
-     * Sets the background color used for wrapped adaptive icon
-     */
-    public void setWrapperBackgroundColor(int color) {
-        mWrapperBackgroundColor = (Color.alpha(color) < 255) ? DEFAULT_WRAPPER_BACKGROUND : color;
-    }
-
-    /**
-     * Disables the dominant color extraction for all icons loaded through this session (until
-     * this instance is recycled).
-     */
-    public void disableColorExtraction() {
-        mDisableColorExtractor = true;
-    }
-
-    private Drawable normalizeAndWrapToAdaptiveIcon(Drawable icon, int iconAppTargetSdk,
-            RectF outIconBounds, float[] outScale) {
-        float scale = 1f;
-        if ((Utilities.ATLEAST_OREO && iconAppTargetSdk >= Build.VERSION_CODES.O) ||
-                Utilities.ATLEAST_P) {
-            boolean[] outShape = new boolean[1];
-            if (mWrapperIcon == null) {
-                mWrapperIcon = mContext.getDrawable(R.drawable.adaptive_icon_drawable_wrapper)
-                        .mutate();
-            }
-            AdaptiveIconDrawable dr = (AdaptiveIconDrawable) mWrapperIcon;
-            dr.setBounds(0, 0, 1, 1);
-            scale = getNormalizer().getScale(icon, outIconBounds, dr.getIconMask(), outShape);
-            if (Utilities.ATLEAST_OREO && !outShape[0] && !(icon instanceof AdaptiveIconDrawable)) {
-                FixedScaleDrawable fsd = ((FixedScaleDrawable) dr.getForeground());
-                fsd.setDrawable(icon);
-                fsd.setScale(scale);
-                icon = dr;
-                scale = getNormalizer().getScale(icon, outIconBounds, null, null);
-
-                ((ColorDrawable) dr.getBackground()).setColor(mWrapperBackgroundColor);
-            }
-        } else {
-            scale = getNormalizer().getScale(icon, outIconBounds, null, null);
-        }
-
-        outScale[0] = scale;
-        return icon;
-    }
-
-    /**
-     * Adds the {@param badge} on top of {@param target} using the badge dimensions.
-     */
-    public void badgeWithDrawable(Bitmap target, Drawable badge) {
-        mCanvas.setBitmap(target);
-        badgeWithDrawable(mCanvas, badge);
-        mCanvas.setBitmap(null);
-    }
-
-    /**
-     * Adds the {@param badge} on top of {@param target} using the badge dimensions.
-     */
-    private void badgeWithDrawable(Canvas target, Drawable badge) {
-        int badgeSize = mContext.getResources().getDimensionPixelSize(R.dimen.profile_badge_size);
-        badge.setBounds(mIconBitmapSize - badgeSize, mIconBitmapSize - badgeSize,
-                mIconBitmapSize, mIconBitmapSize);
-        badge.draw(target);
-    }
-
-    /**
-     * @param scale the scale to apply before drawing {@param icon} on the canvas
-     */
-    private Bitmap createIconBitmap(Drawable icon, float scale) {
-        Bitmap bitmap = Bitmap.createBitmap(mIconBitmapSize, mIconBitmapSize,
-                Bitmap.Config.ARGB_8888);
-        mCanvas.setBitmap(bitmap);
-        mOldBounds.set(icon.getBounds());
-
-        if (Utilities.ATLEAST_OREO && icon instanceof AdaptiveIconDrawable) {
-            int offset = Math.max((int) Math.ceil(BLUR_FACTOR * mIconBitmapSize),
-                    Math.round(mIconBitmapSize * (1 - scale) / 2 ));
-            icon.setBounds(offset, offset, mIconBitmapSize - offset, mIconBitmapSize - offset);
-            icon.draw(mCanvas);
-        } else {
-            if (icon instanceof BitmapDrawable) {
-                BitmapDrawable bitmapDrawable = (BitmapDrawable) icon;
-                Bitmap b = bitmapDrawable.getBitmap();
-                if (bitmap != null && b.getDensity() == Bitmap.DENSITY_NONE) {
-                    bitmapDrawable.setTargetDensity(mContext.getResources().getDisplayMetrics());
-                }
-            }
-            int width = mIconBitmapSize;
-            int height = mIconBitmapSize;
-
-            int intrinsicWidth = icon.getIntrinsicWidth();
-            int intrinsicHeight = icon.getIntrinsicHeight();
-            if (intrinsicWidth > 0 && intrinsicHeight > 0) {
-                // Scale the icon proportionally to the icon dimensions
-                final float ratio = (float) intrinsicWidth / intrinsicHeight;
-                if (intrinsicWidth > intrinsicHeight) {
-                    height = (int) (width / ratio);
-                } else if (intrinsicHeight > intrinsicWidth) {
-                    width = (int) (height * ratio);
-                }
-            }
-            final int left = (mIconBitmapSize - width) / 2;
-            final int top = (mIconBitmapSize - height) / 2;
-            icon.setBounds(left, top, left + width, top + height);
-            mCanvas.save();
-            mCanvas.scale(scale, scale, mIconBitmapSize / 2, mIconBitmapSize / 2);
-            icon.draw(mCanvas);
-            mCanvas.restore();
-
-        }
-        icon.setBounds(mOldBounds);
-        mCanvas.setBitmap(null);
-        return bitmap;
-    }
+    // below methods should also migrate to BaseIconFactory
 
     public BitmapInfo createShortcutIcon(ShortcutInfoCompat shortcutInfo) {
         return createShortcutIcon(shortcutInfo, true /* badged */);
@@ -424,26 +187,4 @@
             return pkgInfo;
         }
     }
-
-    /**
-     * An extension of {@link BitmapDrawable} which returns the bitmap pixel size as intrinsic size.
-     * This allows the badging to be done based on the action bitmap size rather than
-     * the scaled bitmap size.
-     */
-    private static class FixedSizeBitmapDrawable extends BitmapDrawable {
-
-        public FixedSizeBitmapDrawable(Bitmap bitmap) {
-            super(null, bitmap);
-        }
-
-        @Override
-        public int getIntrinsicHeight() {
-            return getBitmap().getWidth();
-        }
-
-        @Override
-        public int getIntrinsicWidth() {
-            return getBitmap().getWidth();
-        }
-    }
 }
diff --git a/src/com/android/launcher3/notification/NotificationListener.java b/src/com/android/launcher3/notification/NotificationListener.java
index 68cf7de..f27b728 100644
--- a/src/com/android/launcher3/notification/NotificationListener.java
+++ b/src/com/android/launcher3/notification/NotificationListener.java
@@ -16,7 +16,7 @@
 
 package com.android.launcher3.notification;
 
-import static com.android.launcher3.SettingsActivity.NOTIFICATION_BADGING;
+import static com.android.launcher3.util.SecureSettingsObserver.newNotificationSettingsObserver;
 
 import android.annotation.TargetApi;
 import android.app.Notification;
@@ -28,14 +28,13 @@
 import android.service.notification.NotificationListenerService;
 import android.service.notification.StatusBarNotification;
 import android.text.TextUtils;
-import android.util.ArraySet;
 import android.util.Log;
 import android.util.Pair;
 
 import com.android.launcher3.LauncherModel;
 import com.android.launcher3.util.IntSet;
 import com.android.launcher3.util.PackageUserKey;
-import com.android.launcher3.util.SettingsObserver;
+import com.android.launcher3.util.SecureSettingsObserver;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -43,7 +42,6 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.Set;
 
 import androidx.annotation.Nullable;
 
@@ -79,7 +77,7 @@
     /** The last notification key that was dismissed from launcher UI */
     private String mLastKeyDismissedByLauncher;
 
-    private SettingsObserver mNotificationBadgingObserver;
+    private SecureSettingsObserver mNotificationBadgingObserver;
 
     private final Handler.Callback mWorkerCallback = new Handler.Callback() {
         @Override
@@ -196,19 +194,20 @@
         super.onListenerConnected();
         sIsConnected = true;
 
-        mNotificationBadgingObserver = new SettingsObserver.Secure(getContentResolver()) {
-            @Override
-            public void onSettingChanged(boolean isNotificationBadgingEnabled) {
-                if (!isNotificationBadgingEnabled && sIsConnected) {
-                    requestUnbind();
-                }
-            }
-        };
-        mNotificationBadgingObserver.register(NOTIFICATION_BADGING);
+        mNotificationBadgingObserver =
+                newNotificationSettingsObserver(this, this::onNotificationBadgingChanged);
+        mNotificationBadgingObserver.register();
+        mNotificationBadgingObserver.dispatchOnChange();
 
         onNotificationFullRefresh();
     }
 
+    private void onNotificationBadgingChanged(boolean isNotificationBadgingEnabled) {
+        if (!isNotificationBadgingEnabled && sIsConnected) {
+            requestUnbind();
+        }
+    }
+
     private void onNotificationFullRefresh() {
         mWorkerHandler.obtainMessage(MSG_NOTIFICATION_FULL_REFRESH).sendToTarget();
     }
diff --git a/src/com/android/launcher3/util/MultiValueAlpha.java b/src/com/android/launcher3/util/MultiValueAlpha.java
index f810f48..07f835d 100644
--- a/src/com/android/launcher3/util/MultiValueAlpha.java
+++ b/src/com/android/launcher3/util/MultiValueAlpha.java
@@ -19,6 +19,8 @@
 import android.util.Property;
 import android.view.View;
 
+import java.util.Arrays;
+
 /**
  * Utility class to handle separating a single value as a factor of multiple values
  */
@@ -55,6 +57,11 @@
         }
     }
 
+    @Override
+    public String toString() {
+        return Arrays.toString(mMyProperties);
+    }
+
     public AlphaProperty getProperty(int index) {
         return mMyProperties[index];
     }
@@ -97,5 +104,10 @@
         public float getValue() {
             return mValue;
         }
+
+        @Override
+        public String toString() {
+            return Float.toString(mValue);
+        }
     }
 }
diff --git a/src/com/android/launcher3/util/SecureSettingsObserver.java b/src/com/android/launcher3/util/SecureSettingsObserver.java
new file mode 100644
index 0000000..48aa02b
--- /dev/null
+++ b/src/com/android/launcher3/util/SecureSettingsObserver.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3.util;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.database.ContentObserver;
+import android.os.Handler;
+import android.provider.Settings;
+
+/**
+ * Utility class to listen for secure settings changes
+ */
+public class SecureSettingsObserver extends ContentObserver {
+
+    /** Hidden field Settings.Secure.NOTIFICATION_BADGING */
+    public static final String NOTIFICATION_BADGING = "notification_badging";
+
+    private final ContentResolver mResolver;
+    private final String mKeySetting;
+    private final int mDefaultValue;
+    private final OnChangeListener mOnChangeListener;
+
+    public SecureSettingsObserver(ContentResolver resolver, OnChangeListener listener,
+            String keySetting, int defaultValue) {
+        super(new Handler());
+
+        mResolver = resolver;
+        mOnChangeListener = listener;
+        mKeySetting = keySetting;
+        mDefaultValue = defaultValue;
+    }
+
+    @Override
+    public void onChange(boolean selfChange) {
+        mOnChangeListener.onSettingsChanged(getValue());
+    }
+
+    public boolean getValue() {
+        return Settings.Secure.getInt(mResolver, mKeySetting, mDefaultValue) == 1;
+    }
+
+    public void register() {
+        mResolver.registerContentObserver(Settings.Secure.getUriFor(mKeySetting), false, this);
+    }
+
+    public ContentResolver getResolver() {
+        return mResolver;
+    }
+
+    public void dispatchOnChange() {
+        onChange(true);
+    }
+
+    public void unregister() {
+        mResolver.unregisterContentObserver(this);
+    }
+
+    public interface OnChangeListener {
+        void onSettingsChanged(boolean isEnabled);
+    }
+
+    public static SecureSettingsObserver newNotificationSettingsObserver(Context context,
+            OnChangeListener listener) {
+        return new SecureSettingsObserver(
+                context.getContentResolver(), listener, NOTIFICATION_BADGING, 1);
+    }
+}
diff --git a/src/com/android/launcher3/util/SettingsObserver.java b/src/com/android/launcher3/util/SettingsObserver.java
deleted file mode 100644
index 6baa242..0000000
--- a/src/com/android/launcher3/util/SettingsObserver.java
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.launcher3.util;
-
-import android.content.ContentResolver;
-import android.database.ContentObserver;
-import android.os.Handler;
-import android.provider.Settings;
-
-public interface SettingsObserver {
-
-    /**
-     * Registers the content observer to call {@link #onSettingChanged(boolean)} when any of the
-     * passed settings change. The value passed to onSettingChanged() is based on the key setting.
-     */
-    void register(String keySetting, String ... dependentSettings);
-    void unregister();
-    void onSettingChanged(boolean keySettingEnabled);
-
-
-    abstract class Secure extends ContentObserver implements SettingsObserver {
-        private ContentResolver mResolver;
-        private String mKeySetting;
-
-        public Secure(ContentResolver resolver) {
-            super(new Handler());
-            mResolver = resolver;
-        }
-
-        @Override
-        public void register(String keySetting, String ... dependentSettings) {
-            mKeySetting = keySetting;
-            mResolver.registerContentObserver(
-                    Settings.Secure.getUriFor(mKeySetting), false, this);
-            for (String setting : dependentSettings) {
-                mResolver.registerContentObserver(
-                        Settings.Secure.getUriFor(setting), false, this);
-            }
-            onChange(true);
-        }
-
-        @Override
-        public void unregister() {
-            mResolver.unregisterContentObserver(this);
-        }
-
-        @Override
-        public void onChange(boolean selfChange) {
-            super.onChange(selfChange);
-            onSettingChanged(Settings.Secure.getInt(mResolver, mKeySetting, 1) == 1);
-        }
-    }
-
-    abstract class System extends ContentObserver implements SettingsObserver {
-        private ContentResolver mResolver;
-        private String mKeySetting;
-
-        public System(ContentResolver resolver) {
-            super(new Handler());
-            mResolver = resolver;
-        }
-
-        @Override
-        public void register(String keySetting, String ... dependentSettings) {
-            mKeySetting = keySetting;
-            mResolver.registerContentObserver(
-                    Settings.System.getUriFor(mKeySetting), false, this);
-            for (String setting : dependentSettings) {
-                mResolver.registerContentObserver(
-                        Settings.System.getUriFor(setting), false, this);
-            }
-            onChange(true);
-        }
-
-        @Override
-        public void unregister() {
-            mResolver.unregisterContentObserver(this);
-        }
-
-        @Override
-        public void onChange(boolean selfChange) {
-            super.onChange(selfChange);
-            onSettingChanged(Settings.System.getInt(mResolver, mKeySetting, 1) == 1);
-        }
-    }
-}
diff --git a/src/com/android/launcher3/views/BaseDragLayer.java b/src/com/android/launcher3/views/BaseDragLayer.java
index 5b8df13..4545a1e 100644
--- a/src/com/android/launcher3/views/BaseDragLayer.java
+++ b/src/com/android/launcher3/views/BaseDragLayer.java
@@ -39,6 +39,7 @@
 import com.android.launcher3.util.MultiValueAlpha.AlphaProperty;
 import com.android.launcher3.util.TouchController;
 
+import java.io.PrintWriter;
 import java.util.ArrayList;
 
 /**
@@ -357,6 +358,10 @@
         return mMultiValueAlpha.getProperty(index);
     }
 
+    public void dumpAlpha(PrintWriter writer) {
+        writer.println(" dragLayerAlpha : " + mMultiValueAlpha );
+    }
+
     public static class LayoutParams extends InsettableFrameLayout.LayoutParams {
         public int x, y;
         public boolean customPosition = false;
diff --git a/src_plugins/com/android/systemui/plugins/AllAppsRow.java b/src_plugins/com/android/systemui/plugins/AllAppsRow.java
new file mode 100644
index 0000000..c003fc1
--- /dev/null
+++ b/src_plugins/com/android/systemui/plugins/AllAppsRow.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2018 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.systemui.plugins;
+
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.android.systemui.plugins.annotations.ProvidesInterface;
+
+/**
+ * Implement this plugin interface to add a row of views to the top of the all apps drawer.
+ */
+@ProvidesInterface(action = AllAppsRow.ACTION, version = AllAppsRow.VERSION)
+public interface AllAppsRow extends Plugin {
+    String ACTION = "com.android.systemui.action.PLUGIN_ALL_APPS_ACTIONS";
+    int VERSION = 1;
+
+    /**
+     * Setup the row and return the parent view.
+     * @param parent The ViewGroup to which launcher will add this row.
+     */
+    View setup(ViewGroup parent);
+
+    /**
+     * @return The height to reserve in all apps for your views.
+     */
+    int getExpectedHeight();
+
+    /**
+     * Update launcher whenever {@link #getExpectedHeight()} changes.
+     */
+    void setOnHeightUpdatedListener(OnHeightUpdatedListener onHeightUpdatedListener);
+
+    interface OnHeightUpdatedListener {
+        void onHeightUpdated();
+    }
+}
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java b/src_ui_overrides/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
index fcb2abe..31dbb34 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
@@ -31,6 +31,10 @@
     public void addPluginListener(PluginListener<? extends Plugin> listener, Class<?> pluginClass) {
     }
 
+    public void addPluginListener(PluginListener<? extends Plugin> listener, Class<?> pluginClass,
+            boolean allowMultiple) {
+    }
+
     public void removePluginListener(PluginListener<? extends Plugin> listener) {
     }
 }
diff --git a/tests/Android.mk b/tests/Android.mk
index 7cba33a..d808873 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -27,7 +27,8 @@
 
 LOCAL_SRC_FILES := $(call all-java-files-under, tapl) \
   ../quickstep/src/com/android/quickstep/SwipeUpSetting.java \
-  ../src/com/android/launcher3/TestProtocol.java
+  ../src/com/android/launcher3/util/SecureSettingsObserver.java \
+  ../src/com/android/launcher3/TestProtocol.java \
 
 LOCAL_SDK_VERSION := current
 LOCAL_MODULE := ub-launcher-aosp-tapl