diff --git a/Android.mk b/Android.mk
index 727c541..b8e6c85 100644
--- a/Android.mk
+++ b/Android.mk
@@ -28,6 +28,35 @@
 LOCAL_SDK_VERSION := current
 include $(BUILD_PREBUILT)
 
+include $(CLEAR_VARS)
+LOCAL_MODULE := libPluginCore
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_CLASS := JAVA_LIBRARIES
+LOCAL_SRC_FILES := libs/plugin_core.jar
+LOCAL_UNINSTALLABLE_MODULE := true
+LOCAL_SDK_VERSION := current
+include $(BUILD_PREBUILT)
+
+#
+# Build rule for plugin lib (needed to write a plugin).
+#
+include $(CLEAR_VARS)
+LOCAL_USE_AAPT2 := true
+LOCAL_AAPT2_ONLY := true
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_STATIC_JAVA_LIBRARIES := libPluginCore
+
+LOCAL_SRC_FILES := \
+    $(call all-java-files-under, src_plugins)
+
+LOCAL_SDK_VERSION := current
+LOCAL_MIN_SDK_VERSION := 28
+LOCAL_MODULE := LauncherPluginLib
+LOCAL_PRIVILEGED_MODULE := true
+
+include $(BUILD_STATIC_JAVA_LIBRARY)
+
 #
 # Build rule for Launcher3 dependencies lib.
 #
@@ -40,6 +69,8 @@
     androidx.recyclerview_recyclerview \
     androidx.dynamicanimation_dynamicanimation
 
+LOCAL_STATIC_JAVA_LIBRARIES := libPluginCore
+
 LOCAL_SRC_FILES := \
     $(call all-proto-files-under, protos) \
     $(call all-proto-files-under, proto_overrides)
diff --git a/libs/plugin_core.jar b/libs/plugin_core.jar
new file mode 100644
index 0000000..dd27f86
--- /dev/null
+++ b/libs/plugin_core.jar
Binary files differ
diff --git a/quickstep/libs/sysui_shared.jar b/quickstep/libs/sysui_shared.jar
index 7ff664d..c5a7c05 100644
--- a/quickstep/libs/sysui_shared.jar
+++ b/quickstep/libs/sysui_shared.jar
Binary files differ
diff --git a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginEnablerImpl.java b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginEnablerImpl.java
new file mode 100644
index 0000000..e9fac26
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginEnablerImpl.java
@@ -0,0 +1,45 @@
+/*
+ * 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.launcher3.uioverrides.plugins;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.SharedPreferences;
+
+import com.android.launcher3.Utilities;
+import com.android.systemui.shared.plugins.PluginEnabler;
+
+public class PluginEnablerImpl implements PluginEnabler {
+
+    final private SharedPreferences mSharedPrefs;
+
+    public PluginEnablerImpl(Context context) {
+        mSharedPrefs = Utilities.getDevicePrefs(context);
+    }
+
+    @Override
+    public void setEnabled(ComponentName component, boolean enabled) {
+        mSharedPrefs.edit().putBoolean(toPrefString(component), enabled).apply();
+    }
+
+    @Override
+    public boolean isEnabled(ComponentName component) {
+        return mSharedPrefs.getBoolean(toPrefString(component), true);
+    }
+
+    private String toPrefString(ComponentName component) {
+        return "PLUGIN_ENABLED_" + component.flattenToString();
+    }
+}
diff --git a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginInitializerImpl.java b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginInitializerImpl.java
new file mode 100644
index 0000000..8a6aa05
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginInitializerImpl.java
@@ -0,0 +1,47 @@
+/*
+ * 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.launcher3.uioverrides.plugins;
+
+import android.content.Context;
+import android.os.Looper;
+
+import com.android.launcher3.LauncherModel;
+import com.android.systemui.shared.plugins.PluginEnabler;
+import com.android.systemui.shared.plugins.PluginInitializer;
+
+public class PluginInitializerImpl implements PluginInitializer {
+    @Override
+    public Looper getBgLooper() {
+        return LauncherModel.getWorkerLooper();
+    }
+
+    @Override
+    public void onPluginManagerInit() {
+    }
+
+    @Override
+    public String[] getWhitelistedPlugins(Context context) {
+        return new String[0];
+    }
+
+    @Override
+    public PluginEnabler getPluginEnabler(Context context) {
+        return new PluginEnablerImpl(context);
+    }
+
+    @Override
+    public void handleWtfs() {
+    }
+}
diff --git a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
new file mode 100644
index 0000000..ca12951
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
@@ -0,0 +1,52 @@
+/*
+ * 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.launcher3.uioverrides.plugins;
+
+import android.content.Context;
+
+import com.android.launcher3.util.MainThreadInitializedObject;
+import com.android.systemui.plugins.Plugin;
+import com.android.systemui.plugins.PluginListener;
+import com.android.systemui.shared.plugins.PluginEnabler;
+import com.android.systemui.shared.plugins.PluginInitializer;
+import com.android.systemui.shared.plugins.PluginManager;
+import com.android.systemui.shared.plugins.PluginManagerImpl;
+
+public class PluginManagerWrapper {
+
+    public static final MainThreadInitializedObject<PluginManagerWrapper> INSTANCE =
+            new MainThreadInitializedObject<>(PluginManagerWrapper::new);
+
+    private final PluginManager mPluginManager;
+    private final PluginEnabler mPluginEnabler;
+
+    private PluginManagerWrapper(Context c) {
+        PluginInitializer pluginInitializer  = new PluginInitializerImpl();
+        mPluginManager = new PluginManagerImpl(c, pluginInitializer);
+        mPluginEnabler = pluginInitializer.getPluginEnabler(c);
+    }
+
+    PluginEnabler getPluginEnabler() {
+        return mPluginEnabler;
+    }
+
+    public void addPluginListener(PluginListener<? extends Plugin> listener, Class<?> pluginClass) {
+        mPluginManager.addPluginListener(listener, pluginClass);
+    }
+
+    public void removePluginListener(PluginListener<? extends Plugin> listener) {
+        mPluginManager.removePluginListener(listener);
+    }
+}
diff --git a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginPreferencesFragment.java b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginPreferencesFragment.java
new file mode 100644
index 0000000..3da4f84
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginPreferencesFragment.java
@@ -0,0 +1,217 @@
+/*
+ * 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.launcher3.uioverrides.plugins;
+
+import android.content.BroadcastReceiver;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.net.Uri;
+import android.os.Bundle;
+import android.preference.PreferenceFragment;
+import android.preference.PreferenceScreen;
+import android.preference.SwitchPreference;
+import android.provider.Settings;
+import android.util.ArrayMap;
+import android.util.ArraySet;
+import android.view.View;
+
+import com.android.launcher3.R;
+import com.android.systemui.shared.plugins.PluginEnabler;
+import com.android.systemui.shared.plugins.PluginManager;
+import com.android.systemui.shared.plugins.PluginPrefs;
+
+import java.util.List;
+import java.util.Set;
+
+/**
+ * This class is copied from System UI Tuner, except using our PluginEnablerImpl. The reason we
+ * can't share a common base class in the shared lib is because the androidx preference dependency
+ * interferes with our recyclerview and fragment dependencies.
+ */
+public class PluginPreferencesFragment extends PreferenceFragment {
+    public static final String ACTION_PLUGIN_SETTINGS
+            = "com.android.systemui.action.PLUGIN_SETTINGS";
+
+    private static final String PLUGIN_PERMISSION = "com.android.systemui.permission.PLUGIN";
+
+    private PluginPrefs mPluginPrefs;
+    private PluginEnabler mPluginEnabler;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
+        filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
+        filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
+        filter.addDataScheme("package");
+        getContext().registerReceiver(mReceiver, filter);
+        filter = new IntentFilter(Intent.ACTION_USER_UNLOCKED);
+        getContext().registerReceiver(mReceiver, filter);
+
+        mPluginEnabler = PluginManagerWrapper.INSTANCE.get(getContext()).getPluginEnabler();
+        loadPrefs();
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        getContext().unregisterReceiver(mReceiver);
+    }
+
+    private void loadPrefs() {
+        PreferenceScreen screen = getPreferenceManager().createPreferenceScreen(getContext());
+        screen.setOrderingAsAdded(false);
+        Context prefContext = getContext();
+        mPluginPrefs = new PluginPrefs(getContext());
+        PackageManager pm = getContext().getPackageManager();
+
+        Set<String> pluginActions = mPluginPrefs.getPluginList();
+        ArrayMap<String, ArraySet<String>> plugins = new ArrayMap<>();
+        for (String action : pluginActions) {
+            String name = toName(action);
+            List<ResolveInfo> result = pm.queryIntentServices(
+                    new Intent(action), PackageManager.MATCH_DISABLED_COMPONENTS);
+            for (ResolveInfo info : result) {
+                String packageName = info.serviceInfo.packageName;
+                if (!plugins.containsKey(packageName)) {
+                    plugins.put(packageName, new ArraySet<>());
+                }
+                plugins.get(packageName).add(name);
+            }
+        }
+
+        List<PackageInfo> apps = pm.getPackagesHoldingPermissions(new String[]{PLUGIN_PERMISSION},
+                PackageManager.MATCH_DISABLED_COMPONENTS | PackageManager.GET_SERVICES);
+        apps.forEach(app -> {
+            if (!plugins.containsKey(app.packageName)) return;
+            SwitchPreference pref = new PluginPreference(prefContext, app, mPluginEnabler);
+            pref.setSummary("Plugins: " + toString(plugins.get(app.packageName)));
+            screen.addPreference(pref);
+        });
+        setPreferenceScreen(screen);
+    }
+
+    private String toString(ArraySet<String> plugins) {
+        StringBuilder b = new StringBuilder();
+        for (String string : plugins) {
+            if (b.length() != 0) {
+                b.append(", ");
+            }
+            b.append(string);
+        }
+        return b.toString();
+    }
+
+    private String toName(String action) {
+        String str = action.replace("com.android.systemui.action.PLUGIN_", "");
+        StringBuilder b = new StringBuilder();
+        for (String s : str.split("_")) {
+            if (b.length() != 0) {
+                b.append(' ');
+            }
+            b.append(s.substring(0, 1));
+            b.append(s.substring(1).toLowerCase());
+        }
+        return b.toString();
+    }
+
+    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            loadPrefs();
+        }
+    };
+
+    private static class PluginPreference extends SwitchPreference {
+        private final boolean mHasSettings;
+        private final PackageInfo mInfo;
+        private final PluginEnabler mPluginEnabler;
+
+        public PluginPreference(Context prefContext, PackageInfo info, PluginEnabler pluginEnabler) {
+            super(prefContext);
+            PackageManager pm = prefContext.getPackageManager();
+            mHasSettings = pm.resolveActivity(new Intent(ACTION_PLUGIN_SETTINGS)
+                    .setPackage(info.packageName), 0) != null;
+            mInfo = info;
+            mPluginEnabler = pluginEnabler;
+            setTitle(info.applicationInfo.loadLabel(pm));
+            setChecked(isPluginEnabled());
+            setWidgetLayoutResource(R.layout.switch_preference_with_settings);
+        }
+
+        private boolean isPluginEnabled() {
+            for (int i = 0; i < mInfo.services.length; i++) {
+                ComponentName componentName = new ComponentName(mInfo.packageName,
+                        mInfo.services[i].name);
+                if (!mPluginEnabler.isEnabled(componentName)) {
+                    return false;
+                }
+            }
+            return true;
+        }
+
+        @Override
+        protected boolean persistBoolean(boolean isEnabled) {
+            boolean shouldSendBroadcast = false;
+            for (int i = 0; i < mInfo.services.length; i++) {
+                ComponentName componentName = new ComponentName(mInfo.packageName,
+                        mInfo.services[i].name);
+
+                if (mPluginEnabler.isEnabled(componentName) != isEnabled) {
+                    mPluginEnabler.setEnabled(componentName, isEnabled);
+                    shouldSendBroadcast = true;
+                }
+            }
+            if (shouldSendBroadcast) {
+                final String pkg = mInfo.packageName;
+                final Intent intent = new Intent(PluginManager.PLUGIN_CHANGED,
+                        pkg != null ? Uri.fromParts("package", pkg, null) : null);
+                getContext().sendBroadcast(intent);
+            }
+            setChecked(isEnabled);
+            return true;
+        }
+
+        @Override
+        protected void onBindView(View view) {
+            super.onBindView(view);
+            view.findViewById(R.id.settings).setVisibility(mHasSettings ? View.VISIBLE
+                    : View.GONE);
+            view.findViewById(R.id.divider).setVisibility(mHasSettings ? View.VISIBLE
+                    : View.GONE);
+            view.findViewById(R.id.settings).setOnClickListener(v -> {
+                ResolveInfo result = v.getContext().getPackageManager().resolveActivity(
+                        new Intent(ACTION_PLUGIN_SETTINGS).setPackage(
+                                mInfo.packageName), 0);
+                if (result != null) {
+                    v.getContext().startActivity(new Intent().setComponent(
+                            new ComponentName(result.activityInfo.packageName,
+                                    result.activityInfo.name)));
+                }
+            });
+            view.setOnLongClickListener(v -> {
+                Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
+                intent.setData(Uri.fromParts("package", mInfo.packageName, null));
+                getContext().startActivity(intent);
+                return true;
+            });
+        }
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/NormalizedIconLoader.java b/quickstep/src/com/android/quickstep/NormalizedIconLoader.java
index 6557761..bd6204a 100644
--- a/quickstep/src/com/android/quickstep/NormalizedIconLoader.java
+++ b/quickstep/src/com/android/quickstep/NormalizedIconLoader.java
@@ -43,7 +43,6 @@
     private final SparseArray<BitmapInfo> mDefaultIcons = new SparseArray<>();
     private final DrawableFactory mDrawableFactory;
     private final boolean mDisableColorExtraction;
-    private LauncherIcons mLauncherIcons;
 
     public NormalizedIconLoader(Context context, TaskKeyLruCache<Drawable> iconCache,
             LruCache<ComponentName, ActivityInfo> activityInfoCache,
@@ -73,19 +72,18 @@
                 false));
     }
 
-    private synchronized BitmapInfo getBitmapInfo(Drawable drawable, int userId,
+    private BitmapInfo getBitmapInfo(Drawable drawable, int userId,
             int primaryColor, boolean isInstantApp) {
-        if (mLauncherIcons == null) {
-            mLauncherIcons = LauncherIcons.obtain(mContext);
+        try (LauncherIcons la = LauncherIcons.obtain(mContext)) {
             if (mDisableColorExtraction) {
-                mLauncherIcons.disableColorExtraction();
+                la.disableColorExtraction();
             }
-        }
+            la.setWrapperBackgroundColor(primaryColor);
 
-        mLauncherIcons.setWrapperBackgroundColor(primaryColor);
-        // User version code O, so that the icon is always wrapped in an adaptive icon container.
-        return mLauncherIcons.createBadgedIconBitmap(drawable, UserHandle.of(userId),
-                Build.VERSION_CODES.O, isInstantApp);
+            // User version code O, so that the icon is always wrapped in an adaptive icon container
+            return la.createBadgedIconBitmap(drawable, UserHandle.of(userId),
+                    Build.VERSION_CODES.O, isInstantApp);
+        }
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index bff3025..1205bdc 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -229,7 +229,9 @@
         }
     };
 
-    private int mLoadPlanId = -1;
+    // Used to keep track of the last requested load plan id, so that we do not request to load the
+    // tasks again if we have already requested it and the task list has not changed
+    private int mRequestedLoadPlanId = -1;
 
     // Only valid until the launcher state changes to NORMAL
     private int mRunningTaskId = -1;
@@ -447,6 +449,7 @@
             mPendingAnimation.addEndListener((onEndListener) -> applyLoadPlan(loadPlan));
             return;
         }
+
         TaskStack stack = loadPlan != null ? loadPlan.getTaskStack() : null;
         if (stack == null) {
             removeAllViews();
@@ -615,8 +618,9 @@
      * and unloads the associated task data for tasks that are no longer visible.
      */
     public void loadVisibleTaskData() {
-        if (!mOverviewStateEnabled) {
-            // Skip loading visible task data if we've already left the overview state
+        if (!mOverviewStateEnabled || mRequestedLoadPlanId == -1) {
+            // Skip loading visible task data if we've already left the overview state, or if the
+            // task list hasn't been loaded yet (the task views will not reflect the task list)
             return;
         }
 
@@ -675,6 +679,7 @@
         mRunningTaskId = -1;
         mRunningTaskTileHidden = false;
         mIgnoreResetTaskId = -1;
+        mRequestedLoadPlanId = -1;
 
         unloadVisibleTaskData();
         setCurrentPage(0);
@@ -686,8 +691,8 @@
      * Reloads the view if anything in recents changed.
      */
     public void reloadIfNeeded() {
-        if (!mModel.isLoadPlanValid(mLoadPlanId)) {
-            mLoadPlanId = mModel.loadTasks(mRunningTaskId, this::applyLoadPlan);
+        if (!mModel.isLoadPlanValid(mRequestedLoadPlanId)) {
+            mRequestedLoadPlanId = mModel.loadTasks(mRunningTaskId, this::applyLoadPlan);
         }
     }
 
@@ -748,8 +753,8 @@
 
         setCurrentPage(0);
 
-        // Load the tasks (if the loading is already
-        mLoadPlanId = mModel.loadTasks(runningTaskId, this::applyLoadPlan);
+        // Load the tasks
+        reloadIfNeeded();
     }
 
     public void showNextTask() {
diff --git a/res/layout/switch_preference_with_settings.xml b/res/layout/switch_preference_with_settings.xml
new file mode 100644
index 0000000..d319561
--- /dev/null
+++ b/res/layout/switch_preference_with_settings.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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.
+-->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:gravity="center_vertical">
+
+    <ImageView
+        android:id="@+id/settings"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:src="@drawable/ic_setting"
+        android:tint="@android:color/black"
+        android:padding="12dp"
+        android:background="?android:attr/selectableItemBackgroundBorderless" />
+
+    <View
+        android:id="@+id/divider"
+        android:layout_width="1dp"
+        android:layout_height="30dp"
+        android:layout_marginEnd="8dp"
+        android:background="?android:attr/listDivider" />
+
+    <!-- Note: seems we need focusable="false" and clickable="false" when moving to androidx -->
+    <Switch
+        android:id="@android:id/switch_widget"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:background="@null" />
+</LinearLayout>
\ No newline at end of file
diff --git a/src_plugins/README.md b/src_plugins/README.md
new file mode 100644
index 0000000..c7ce1da
--- /dev/null
+++ b/src_plugins/README.md
@@ -0,0 +1,3 @@
+This directory contains plugin interfaces that launcher listens for and plugins implement. In other words, these are the hooks that specify what plugins launcher currently supports. 
+
+Details about how to create a new plugin interface, or to use existing interfaces to write a plugin can be found at go/gnl/plugins.
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java b/src_ui_overrides/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
new file mode 100644
index 0000000..fcb2abe
--- /dev/null
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/plugins/PluginManagerWrapper.java
@@ -0,0 +1,36 @@
+/*
+ * 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.launcher3.uioverrides.plugins;
+
+import android.content.Context;
+
+import com.android.launcher3.util.MainThreadInitializedObject;
+import com.android.systemui.plugins.Plugin;
+import com.android.systemui.plugins.PluginListener;
+
+public class PluginManagerWrapper {
+
+    public static final MainThreadInitializedObject<PluginManagerWrapper> INSTANCE =
+            new MainThreadInitializedObject<>(PluginManagerWrapper::new);
+
+    private PluginManagerWrapper(Context c) {
+    }
+
+    public void addPluginListener(PluginListener<? extends Plugin> listener, Class<?> pluginClass) {
+    }
+
+    public void removePluginListener(PluginListener<? extends Plugin> listener) {
+    }
+}
diff --git a/tests/src/com/android/launcher3/ui/widget/AddConfigWidgetTest.java b/tests/src/com/android/launcher3/ui/widget/AddConfigWidgetTest.java
index 14141f0..970376f 100644
--- a/tests/src/com/android/launcher3/ui/widget/AddConfigWidgetTest.java
+++ b/tests/src/com/android/launcher3/ui/widget/AddConfigWidgetTest.java
@@ -36,7 +36,6 @@
 import com.android.launcher3.Workspace;
 import com.android.launcher3.testcomponent.WidgetConfigActivity;
 import com.android.launcher3.ui.AbstractLauncherUiTest;
-import com.android.launcher3.tapl.TestHelpers;
 import com.android.launcher3.util.Condition;
 import com.android.launcher3.util.Wait;
 import com.android.launcher3.util.rule.ShellCommandRule;
@@ -55,7 +54,7 @@
 @RunWith(AndroidJUnit4.class)
 public class AddConfigWidgetTest extends AbstractLauncherUiTest {
 
-    @Rule public ShellCommandRule mGrantWidgetRule = ShellCommandRule.grandWidgetBind();
+    @Rule public ShellCommandRule mGrantWidgetRule = ShellCommandRule.grantWidgetBind();
 
     private LauncherAppWidgetProviderInfo mWidgetInfo;
     private AppWidgetManager mAppWidgetManager;
diff --git a/tests/src/com/android/launcher3/ui/widget/AddWidgetTest.java b/tests/src/com/android/launcher3/ui/widget/AddWidgetTest.java
index 8a05e2c..4f962df 100644
--- a/tests/src/com/android/launcher3/ui/widget/AddWidgetTest.java
+++ b/tests/src/com/android/launcher3/ui/widget/AddWidgetTest.java
@@ -45,7 +45,7 @@
 @RunWith(AndroidJUnit4.class)
 public class AddWidgetTest extends AbstractLauncherUiTest {
 
-    @Rule public ShellCommandRule mGrantWidgetRule = ShellCommandRule.grandWidgetBind();
+    @Rule public ShellCommandRule mGrantWidgetRule = ShellCommandRule.grantWidgetBind();
 
     @Test
     @Ignore
diff --git a/tests/src/com/android/launcher3/ui/widget/BindWidgetTest.java b/tests/src/com/android/launcher3/ui/widget/BindWidgetTest.java
index b7342c4..06270b7 100644
--- a/tests/src/com/android/launcher3/ui/widget/BindWidgetTest.java
+++ b/tests/src/com/android/launcher3/ui/widget/BindWidgetTest.java
@@ -30,21 +30,16 @@
 import android.content.pm.PackageManager;
 import android.database.Cursor;
 import android.os.Bundle;
-import androidx.test.filters.LargeTest;
-import androidx.test.runner.AndroidJUnit4;
-import androidx.test.uiautomator.UiSelector;
 
 import com.android.launcher3.LauncherAppWidgetHost;
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherAppWidgetProviderInfo;
-import com.android.launcher3.LauncherModel;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.Workspace;
 import com.android.launcher3.compat.AppWidgetManagerCompat;
 import com.android.launcher3.compat.PackageInstallerCompat;
 import com.android.launcher3.ui.AbstractLauncherUiTest;
 import com.android.launcher3.util.ContentWriter;
-import com.android.launcher3.util.LooperExecutor;
 import com.android.launcher3.util.rule.ShellCommandRule;
 import com.android.launcher3.widget.LauncherAppWidgetHostView;
 import com.android.launcher3.widget.PendingAddWidgetInfo;
@@ -56,12 +51,13 @@
 import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
-import org.junit.rules.TestRule;
 import org.junit.runner.RunWith;
 
 import java.util.Set;
-import java.util.concurrent.Callable;
-import java.util.concurrent.TimeUnit;
+
+import androidx.test.filters.LargeTest;
+import androidx.test.runner.AndroidJUnit4;
+import androidx.test.uiautomator.UiSelector;
 
 /**
  * Tests for bind widget flow.
@@ -72,6 +68,8 @@
 @RunWith(AndroidJUnit4.class)
 public class BindWidgetTest extends AbstractLauncherUiTest {
 
+    @Rule public ShellCommandRule mGrantWidgetRule = ShellCommandRule.grantWidgetBind();
+
     private ContentResolver mResolver;
     private AppWidgetManagerCompat mWidgetManager;
 
@@ -121,7 +119,8 @@
         LauncherAppWidgetProviderInfo info = findWidgetProvider(true);
         LauncherAppWidgetInfo item = createWidgetInfo(info, true);
 
-        setupAndVerifyContents(item, LauncherAppWidgetHostView.class, info.label);
+        setupContents(item);
+        verifyWidgetPresent(info);
     }
 
     @Test
@@ -129,18 +128,21 @@
         LauncherAppWidgetProviderInfo info = findWidgetProvider(false);
         LauncherAppWidgetInfo item = createWidgetInfo(info, true);
 
-        setupAndVerifyContents(item, LauncherAppWidgetHostView.class, info.label);
+        setupContents(item);
+        verifyWidgetPresent(info);
     }
 
     @Test @Ignore
-    public void testUnboundWidget_removed() throws Exception {
+    public void testUnboundWidget_removed() {
         LauncherAppWidgetProviderInfo info = findWidgetProvider(false);
         LauncherAppWidgetInfo item = createWidgetInfo(info, false);
         item.appWidgetId = -33;
 
-        // Since there is no widget to verify, just wait until the workspace is ready.
-        setupAndVerifyContents(item, Workspace.class, null);
+        setupContents(item);
 
+        // Since there is no widget to verify, just wait until the workspace is ready.
+        // TODO: fix LauncherInstrumentation#LAUNCHER_PKG
+        mLauncher.getWorkspace();
         // Item deleted from db
         mCursor = mResolver.query(LauncherSettings.Favorites.getContentUri(item.id),
                 null, null, null, null, null);
@@ -163,7 +165,9 @@
         LauncherAppWidgetInfo item = createWidgetInfo(info, false);
         item.restoreStatus = LauncherAppWidgetInfo.FLAG_ID_NOT_VALID;
 
-        setupAndVerifyContents(item, LauncherAppWidgetHostView.class, info.label);
+        setupContents(item);
+        verifyWidgetPresent(info);
+
         if (com.android.launcher3.Utilities.IS_RUNNING_IN_TEST_HARNESS
                 && com.android.launcher3.Utilities.IS_DEBUG_DEVICE) {
             android.util.Log.d("b/117332845",
@@ -172,7 +176,7 @@
     }
 
     @Test
-    public void testPendingWidget_withConfigScreen() throws Exception {
+    public void testPendingWidget_withConfigScreen() {
         if (com.android.launcher3.Utilities.IS_RUNNING_IN_TEST_HARNESS
                 && com.android.launcher3.Utilities.IS_DEBUG_DEVICE) {
             android.util.Log.d("b/117332845",
@@ -185,7 +189,9 @@
         LauncherAppWidgetInfo item = createWidgetInfo(info, false);
         item.restoreStatus = LauncherAppWidgetInfo.FLAG_ID_NOT_VALID;
 
-        setupAndVerifyContents(item, PendingAppWidgetHostView.class, null);
+        setupContents(item);
+        verifyPendingWidgetPresent();
+
         // Item deleted from db
         mCursor = mResolver.query(LauncherSettings.Favorites.getContentUri(item.id),
                 null, null, null, null, null);
@@ -205,12 +211,16 @@
     }
 
     @Test @Ignore
-    public void testPendingWidget_notRestored_removed() throws Exception {
+    public void testPendingWidget_notRestored_removed() {
         LauncherAppWidgetInfo item = getInvalidWidgetInfo();
         item.restoreStatus = LauncherAppWidgetInfo.FLAG_ID_NOT_VALID
                 | LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY;
 
-        setupAndVerifyContents(item, Workspace.class, null);
+        setupContents(item);
+
+        // Since there is no widget to verify, just wait until the workspace is ready.
+        // TODO: fix LauncherInstrumentation#LAUNCHER_PKG
+        mLauncher.getWorkspace();
         // The view does not exist
         assertFalse(mDevice.findObject(
                 new UiSelector().className(PendingAppWidgetHostView.class)).exists());
@@ -221,7 +231,7 @@
     }
 
     @Test
-    public void testPendingWidget_notRestored_brokenInstall() throws Exception {
+    public void testPendingWidget_notRestored_brokenInstall() {
         // A widget which is was being installed once, even if its not being
         // installed at the moment is not removed.
         LauncherAppWidgetInfo item = getInvalidWidgetInfo();
@@ -229,7 +239,9 @@
                 | LauncherAppWidgetInfo.FLAG_RESTORE_STARTED
                 | LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY;
 
-        setupAndVerifyContents(item, PendingAppWidgetHostView.class, null);
+        setupContents(item);
+        verifyPendingWidgetPresent();
+
         // Verify item still exists in db
         mCursor = mResolver.query(LauncherSettings.Favorites.getContentUri(item.id),
                 null, null, null, null, null);
@@ -255,7 +267,9 @@
         PackageInstaller installer = mTargetContext.getPackageManager().getPackageInstaller();
         mSessionId = installer.createSession(params);
 
-        setupAndVerifyContents(item, PendingAppWidgetHostView.class, null);
+        setupContents(item);
+        verifyPendingWidgetPresent();
+
         // Verify item still exists in db
         mCursor = mResolver.query(LauncherSettings.Favorites.getContentUri(item.id),
                 null, null, null, null, null);
@@ -271,11 +285,8 @@
     /**
      * Adds {@param item} on the homescreen on the 0th screen at 0,0, and verifies that the
      * widget class is displayed on the homescreen.
-     * @param widgetClass the View class which is displayed on the homescreen
-     * @param desc the content description of the view or null.
      */
-    private void setupAndVerifyContents(
-            LauncherAppWidgetInfo item, Class<?> widgetClass, String desc) {
+    private void setupContents(LauncherAppWidgetInfo item) {
         int screenId = Workspace.FIRST_SCREEN_ID;
         // Update the screen id counter for the provider.
         LauncherSettings.Settings.call(mResolver, LauncherSettings.Settings.METHOD_NEW_SCREEN_ID);
@@ -302,13 +313,17 @@
         // Launch the home activity
         mActivityMonitor.startLauncher();
         waitForModelLoaded();
+    }
 
-        // Verify UI
+    private void verifyWidgetPresent(LauncherAppWidgetProviderInfo info) {
         UiSelector selector = new UiSelector().packageName(mTargetContext.getPackageName())
-                .className(widgetClass);
-        if (desc != null) {
-            selector = selector.description(desc);
-        }
+                .className(LauncherAppWidgetHostView.class).description(info.label);
+        assertTrue(mDevice.findObject(selector).waitForExists(DEFAULT_UI_TIMEOUT));
+    }
+
+    private void verifyPendingWidgetPresent() {
+        UiSelector selector = new UiSelector().packageName(mTargetContext.getPackageName())
+                .className(PendingAppWidgetHostView.class);
         assertTrue(mDevice.findObject(selector).waitForExists(DEFAULT_UI_TIMEOUT));
     }
 
@@ -357,13 +372,9 @@
         int count = 0;
         String pkg = invalidPackage;
 
-        Set<String> activePackage = getOnUiThread(new Callable<Set<String>>() {
-            @Override
-            public Set<String> call() throws Exception {
-                return PackageInstallerCompat.getInstance(mTargetContext)
-                        .updateAndGetActiveSessionCache().keySet();
-            }
-        });
+        Set<String> activePackage = getOnUiThread(() ->
+                PackageInstallerCompat.getInstance(mTargetContext)
+                        .updateAndGetActiveSessionCache().keySet());
         while(true) {
             try {
                 mTargetContext.getPackageManager().getPackageInfo(
diff --git a/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java b/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java
index 839cfb2..f6c7286 100644
--- a/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java
+++ b/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java
@@ -62,7 +62,7 @@
 @RunWith(AndroidJUnit4.class)
 public class RequestPinItemTest extends AbstractLauncherUiTest {
 
-    @Rule public ShellCommandRule mGrantWidgetRule = ShellCommandRule.grandWidgetBind();
+    @Rule public ShellCommandRule mGrantWidgetRule = ShellCommandRule.grantWidgetBind();
 
     private String mCallbackAction;
     private String mShortcutId;
diff --git a/tests/src/com/android/launcher3/util/rule/ShellCommandRule.java b/tests/src/com/android/launcher3/util/rule/ShellCommandRule.java
index 4531ab1..0ec0f02 100644
--- a/tests/src/com/android/launcher3/util/rule/ShellCommandRule.java
+++ b/tests/src/com/android/launcher3/util/rule/ShellCommandRule.java
@@ -63,7 +63,7 @@
     /**
      * Grants the launcher permission to bind widgets.
      */
-    public static ShellCommandRule grandWidgetBind() {
+    public static ShellCommandRule grantWidgetBind() {
         return new ShellCommandRule("appwidget grantbind --package "
                 + InstrumentationRegistry.getTargetContext().getPackageName(), null);
     }
diff --git a/tests/tapl/com/android/launcher3/tapl/Background.java b/tests/tapl/com/android/launcher3/tapl/Background.java
index 26295c8..27e0954 100644
--- a/tests/tapl/com/android/launcher3/tapl/Background.java
+++ b/tests/tapl/com/android/launcher3/tapl/Background.java
@@ -17,11 +17,10 @@
 package com.android.launcher3.tapl;
 
 import static com.android.launcher3.tapl.LauncherInstrumentation.WAIT_TIME_MS;
+import static com.android.launcher3.tapl.TestHelpers.getOverviewPackageName;
 
 import static org.junit.Assert.assertTrue;
 
-import static androidx.test.InstrumentationRegistry.getTargetContext;
-
 import androidx.annotation.NonNull;
 import androidx.test.uiautomator.By;
 import androidx.test.uiautomator.UiObject2;
@@ -52,9 +51,8 @@
     public BaseOverview switchToOverview() {
         verifyActiveContainer();
         goToOverviewUnchecked();
-        assertTrue("Overview not visible", mLauncher.getDevice().wait(Until.hasObject(By.pkg(
-                getTargetContext().getPackageName())),
-                WAIT_TIME_MS));
+        assertTrue("Overview not visible", mLauncher.getDevice().wait(
+                Until.hasObject(By.pkg(getOverviewPackageName())), WAIT_TIME_MS));
         return new BaseOverview(mLauncher);
     }
 
diff --git a/tests/tapl/com/android/launcher3/tapl/BaseOverview.java b/tests/tapl/com/android/launcher3/tapl/BaseOverview.java
index 87d0a79..4fce211 100644
--- a/tests/tapl/com/android/launcher3/tapl/BaseOverview.java
+++ b/tests/tapl/com/android/launcher3/tapl/BaseOverview.java
@@ -16,8 +16,6 @@
 
 package com.android.launcher3.tapl;
 
-import com.android.launcher3.tapl.LauncherInstrumentation.ContainerType;
-
 import java.util.Collections;
 import java.util.List;
 
diff --git a/tests/tapl/com/android/launcher3/tapl/TestHelpers.java b/tests/tapl/com/android/launcher3/tapl/TestHelpers.java
index c393cdf..93554d2 100644
--- a/tests/tapl/com/android/launcher3/tapl/TestHelpers.java
+++ b/tests/tapl/com/android/launcher3/tapl/TestHelpers.java
@@ -20,10 +20,12 @@
 import static androidx.test.InstrumentationRegistry.getTargetContext;
 
 import android.app.Instrumentation;
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
 import android.content.pm.ResolveInfo;
+import android.content.res.Resources;
 
 import java.util.List;
 
@@ -70,4 +72,13 @@
         }
         return launchers.get(0).activityInfo;
     }
+
+    public static String getOverviewPackageName() {
+        Resources res = Resources.getSystem();
+        int id = res.getIdentifier("config_recentsComponentName", "string", "android");
+        if (id != 0) {
+            return ComponentName.unflattenFromString(res.getString(id)).getPackageName();
+        }
+        return "com.android.systemui";
+    }
 }