diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/AppToOverviewAnimationProvider.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/AppToOverviewAnimationProvider.java
index e1ff4f4..aaf7619 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/AppToOverviewAnimationProvider.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/AppToOverviewAnimationProvider.java
@@ -48,7 +48,7 @@
  *
  * @param <T> activity that contains the overview
  */
-final class AppToOverviewAnimationProvider<T extends BaseDraggingActivity> implements
+final class AppToOverviewAnimationProvider<T extends BaseDraggingActivity> extends
         RemoteAnimationProvider {
 
     private static final long RECENTS_LAUNCH_DURATION = 250;
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/OverviewCommandHelper.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/OverviewCommandHelper.java
index fc50660..c6b719a 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/OverviewCommandHelper.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/OverviewCommandHelper.java
@@ -33,6 +33,7 @@
 import com.android.launcher3.logging.UserEventDispatcher;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.quickstep.util.ActivityInitListener;
+import com.android.quickstep.util.RemoteAnimationProvider;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
@@ -187,7 +188,15 @@
             // Otherwise, start overview.
             mListener = mActivityInterface.createActivityInitListener(this::onActivityReady);
             mListener.registerAndStartActivity(mOverviewComponentObserver.getOverviewIntent(),
-                    this::createWindowAnimation, mContext, MAIN_EXECUTOR.getHandler(),
+                    new RemoteAnimationProvider() {
+                        @Override
+                        public AnimatorSet createWindowAnimation(
+                                RemoteAnimationTargetCompat[] appTargets,
+                                RemoteAnimationTargetCompat[] wallpaperTargets) {
+                            return RecentsActivityCommand.this.createWindowAnimation(appTargets,
+                                    wallpaperTargets);
+                        }
+                    }, mContext, MAIN_EXECUTOR.getHandler(),
                     mAnimationProvider.getRecentsLaunchDuration());
         }
 
diff --git a/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java b/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
index 809543a..a7d00c5 100644
--- a/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
@@ -52,10 +52,12 @@
 import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.SysUINavigationMode.NavigationModeChangeListener;
 import com.android.quickstep.SystemUiProxy;
+import com.android.quickstep.util.RemoteAnimationProvider;
 import com.android.quickstep.util.RemoteFadeOutAnimationListener;
 import com.android.quickstep.util.ShelfPeekAnim;
 import com.android.quickstep.views.RecentsView;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
+import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 
 import java.util.stream.Stream;
 
@@ -262,17 +264,21 @@
     public void useFadeOutAnimationForLauncherStart(CancellationSignal signal) {
         QuickstepAppTransitionManagerImpl appTransitionManager =
                 (QuickstepAppTransitionManagerImpl) getAppTransitionManager();
-        appTransitionManager.setRemoteAnimationProvider((appTargets, wallpaperTargets) -> {
+        appTransitionManager.setRemoteAnimationProvider(new RemoteAnimationProvider() {
+            @Override
+            public AnimatorSet createWindowAnimation(RemoteAnimationTargetCompat[] appTargets,
+                    RemoteAnimationTargetCompat[] wallpaperTargets) {
 
-            // On the first call clear the reference.
-            signal.cancel();
+                // On the first call clear the reference.
+                signal.cancel();
 
-            ValueAnimator fadeAnimation = ValueAnimator.ofFloat(1, 0);
-            fadeAnimation.addUpdateListener(new RemoteFadeOutAnimationListener(appTargets,
-                    wallpaperTargets));
-            AnimatorSet anim = new AnimatorSet();
-            anim.play(fadeAnimation);
-            return anim;
+                ValueAnimator fadeAnimation = ValueAnimator.ofFloat(1, 0);
+                fadeAnimation.addUpdateListener(new RemoteFadeOutAnimationListener(appTargets,
+                        wallpaperTargets));
+                AnimatorSet anim = new AnimatorSet();
+                anim.play(fadeAnimation);
+                return anim;
+            }
         }, signal);
     }
 
diff --git a/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java b/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java
index 31c1acf..2cb23f1 100644
--- a/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java
+++ b/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java
@@ -34,7 +34,8 @@
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 
 @TargetApi(Build.VERSION_CODES.P)
-public abstract class LauncherAnimationRunner implements RemoteAnimationRunnerCompat {
+public abstract class LauncherAnimationRunner implements RemoteAnimationRunnerCompat,
+        WrappedAnimationRunnerImpl {
 
     private final Handler mHandler;
     private final boolean mStartAtFrontOfQueue;
@@ -49,6 +50,10 @@
         mStartAtFrontOfQueue = startAtFrontOfQueue;
     }
 
+    public Handler getHandler() {
+        return mHandler;
+    }
+
     // Called only in R+ platform
     @BinderThread
     public void onAnimationStart(RemoteAnimationTargetCompat[] appTargets,
diff --git a/quickstep/src/com/android/launcher3/LauncherInitListener.java b/quickstep/src/com/android/launcher3/LauncherInitListener.java
index 96340b2..fbd7a8a 100644
--- a/quickstep/src/com/android/launcher3/LauncherInitListener.java
+++ b/quickstep/src/com/android/launcher3/LauncherInitListener.java
@@ -15,6 +15,7 @@
  */
 package com.android.launcher3;
 
+import android.animation.AnimatorSet;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.Intent;
@@ -25,6 +26,7 @@
 import com.android.launcher3.util.ActivityTracker;
 import com.android.quickstep.util.ActivityInitListener;
 import com.android.quickstep.util.RemoteAnimationProvider;
+import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 
 import java.util.function.BiPredicate;
 
@@ -51,17 +53,21 @@
             // Set a one-time animation provider. After the first call, this will get cleared.
             // TODO: Probably also check the intended target id.
             CancellationSignal cancellationSignal = new CancellationSignal();
-            appTransitionManager.setRemoteAnimationProvider((appTargets, wallpaperTargets) -> {
+            appTransitionManager.setRemoteAnimationProvider(new RemoteAnimationProvider() {
+                @Override
+                public AnimatorSet createWindowAnimation(RemoteAnimationTargetCompat[] appTargets,
+                        RemoteAnimationTargetCompat[] wallpaperTargets) {
 
-                // On the first call clear the reference.
-                cancellationSignal.cancel();
-                RemoteAnimationProvider provider = mRemoteAnimationProvider;
-                mRemoteAnimationProvider = null;
+                    // On the first call clear the reference.
+                    cancellationSignal.cancel();
+                    RemoteAnimationProvider provider = mRemoteAnimationProvider;
+                    mRemoteAnimationProvider = null;
 
-                if (provider != null && launcher.getStateManager().getState().overviewUi) {
-                    return provider.createWindowAnimation(appTargets, wallpaperTargets);
+                    if (provider != null && launcher.getStateManager().getState().overviewUi) {
+                        return provider.createWindowAnimation(appTargets, wallpaperTargets);
+                    }
+                    return null;
                 }
-                return null;
             }, cancellationSignal);
         }
         launcher.deferOverlayCallbacksUntilNextResumeOrStop();
diff --git a/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java b/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
index f691359..8d4e727 100644
--- a/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
+++ b/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
@@ -86,8 +86,6 @@
 import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 import com.android.systemui.shared.system.WindowManagerWrapper;
 
-import java.lang.ref.WeakReference;
-
 /**
  * {@link LauncherAppTransitionManager} with Quickstep-specific app transitions for launching from
  * home and/or all-apps.  Not used for 3p launchers.
@@ -785,52 +783,6 @@
     }
 
     /**
-     * Used with WrappedLauncherAnimationRunner as an interface for the runner to call back to the
-     * implementation.
-     */
-    protected interface WrappedAnimationRunnerImpl {
-        Handler getHandler();
-        void onCreateAnimation(RemoteAnimationTargetCompat[] appTargets,
-                RemoteAnimationTargetCompat[] wallpaperTargets,
-                LauncherAnimationRunner.AnimationResult result);
-    }
-
-    /**
-     * This class is needed to wrap any animation runner that is a part of the
-     * RemoteAnimationDefinition:
-     * - Launcher creates a new instance of the LauncherAppTransitionManagerImpl whenever it is
-     *   created, which in turn registers a new definition
-     * - When the definition is registered, window manager retains a strong binder reference to the
-     *   runner passed in
-     * - If the Launcher activity is recreated, the new definition registered will replace the old
-     *   reference in the system's activity record, but until the system server is GC'd, the binder
-     *   reference will still exist, which references the runner in the Launcher process, which
-     *   references the (old) Launcher activity through this class
-     *
-     * Instead we make the runner provided to the definition static only holding a weak reference to
-     * the runner implementation.  When this animation manager is destroyed, we remove the Launcher
-     * reference to the runner, leaving only the weak ref from the runner.
-     */
-    protected static class WrappedLauncherAnimationRunner<R extends WrappedAnimationRunnerImpl>
-            extends LauncherAnimationRunner {
-        private WeakReference<R> mImpl;
-
-        public WrappedLauncherAnimationRunner(R animationRunnerImpl, boolean startAtFrontOfQueue) {
-            super(animationRunnerImpl.getHandler(), startAtFrontOfQueue);
-            mImpl = new WeakReference<>(animationRunnerImpl);
-        }
-
-        @Override
-        public void onCreateAnimation(RemoteAnimationTargetCompat[] appTargets,
-                RemoteAnimationTargetCompat[] wallpaperTargets, AnimationResult result) {
-            R animationRunnerImpl = mImpl.get();
-            if (animationRunnerImpl != null) {
-                animationRunnerImpl.onCreateAnimation(appTargets, wallpaperTargets, result);
-            }
-        }
-    }
-
-    /**
      * Remote animation runner for animation from the app to Launcher, including recents.
      */
     protected class WallpaperOpenLauncherAnimationRunner implements WrappedAnimationRunnerImpl {
diff --git a/quickstep/src/com/android/launcher3/WrappedAnimationRunnerImpl.java b/quickstep/src/com/android/launcher3/WrappedAnimationRunnerImpl.java
new file mode 100644
index 0000000..da2aee4
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/WrappedAnimationRunnerImpl.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2020 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;
+
+import android.os.Handler;
+
+import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
+
+/**
+ * Used with WrappedLauncherAnimationRunner as an interface for the runner to call back to the
+ * implementation.
+ */
+public interface WrappedAnimationRunnerImpl {
+    Handler getHandler();
+    void onCreateAnimation(RemoteAnimationTargetCompat[] appTargets,
+            RemoteAnimationTargetCompat[] wallpaperTargets,
+            LauncherAnimationRunner.AnimationResult result);
+}
diff --git a/quickstep/src/com/android/launcher3/WrappedLauncherAnimationRunner.java b/quickstep/src/com/android/launcher3/WrappedLauncherAnimationRunner.java
new file mode 100644
index 0000000..1753b62
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/WrappedLauncherAnimationRunner.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2020 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;
+
+import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
+
+import java.lang.ref.WeakReference;
+
+/**
+ * This class is needed to wrap any animation runner that is a part of the
+ * RemoteAnimationDefinition:
+ * - Launcher creates a new instance of the LauncherAppTransitionManagerImpl whenever it is
+ *   created, which in turn registers a new definition
+ * - When the definition is registered, window manager retains a strong binder reference to the
+ *   runner passed in
+ * - If the Launcher activity is recreated, the new definition registered will replace the old
+ *   reference in the system's activity record, but until the system server is GC'd, the binder
+ *   reference will still exist, which references the runner in the Launcher process, which
+ *   references the (old) Launcher activity through this class
+ *
+ * Instead we make the runner provided to the definition static only holding a weak reference to
+ * the runner implementation.  When this animation manager is destroyed, we remove the Launcher
+ * reference to the runner, leaving only the weak ref from the runner.
+ */
+public class WrappedLauncherAnimationRunner<R extends WrappedAnimationRunnerImpl>
+        extends LauncherAnimationRunner {
+    private WeakReference<R> mImpl;
+
+    public WrappedLauncherAnimationRunner(R animationRunnerImpl, boolean startAtFrontOfQueue) {
+        super(animationRunnerImpl.getHandler(), startAtFrontOfQueue);
+        mImpl = new WeakReference<>(animationRunnerImpl);
+    }
+
+    @Override
+    public void onCreateAnimation(RemoteAnimationTargetCompat[] appTargets,
+            RemoteAnimationTargetCompat[] wallpaperTargets, AnimationResult result) {
+        R animationRunnerImpl = mImpl.get();
+        if (animationRunnerImpl != null) {
+            animationRunnerImpl.onCreateAnimation(appTargets, wallpaperTargets, result);
+        }
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java b/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
index 6520c4f..21b97ec 100644
--- a/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
+++ b/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
@@ -21,21 +21,22 @@
 import android.os.Handler;
 
 import com.android.launcher3.LauncherAnimationRunner;
+import com.android.launcher3.WrappedLauncherAnimationRunner;
 import com.android.systemui.shared.system.ActivityOptionsCompat;
 import com.android.systemui.shared.system.RemoteAnimationAdapterCompat;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.TransactionCompat;
 
-@FunctionalInterface
-public interface RemoteAnimationProvider {
+public abstract class RemoteAnimationProvider {
 
+    LauncherAnimationRunner mAnimationRunner;
     static final int Z_BOOST_BASE = 800570000;
 
-    AnimatorSet createWindowAnimation(RemoteAnimationTargetCompat[] appTargets,
+    public abstract AnimatorSet createWindowAnimation(RemoteAnimationTargetCompat[] appTargets,
             RemoteAnimationTargetCompat[] wallpaperTargets);
 
-    default ActivityOptions toActivityOptions(Handler handler, long duration, Context context) {
-        LauncherAnimationRunner runner = new LauncherAnimationRunner(handler,
+    ActivityOptions toActivityOptions(Handler handler, long duration, Context context) {
+        mAnimationRunner = new LauncherAnimationRunner(handler,
                 false /* startAtFrontOfQueue */) {
 
             @Override
@@ -44,8 +45,11 @@
                 result.setAnimation(createWindowAnimation(appTargets, wallpaperTargets), context);
             }
         };
+        final LauncherAnimationRunner wrapper = new WrappedLauncherAnimationRunner(
+                mAnimationRunner, false /* startAtFrontOfQueue */);
+
         return ActivityOptionsCompat.makeRemoteAnimation(
-                new RemoteAnimationAdapterCompat(runner, duration, 0));
+                new RemoteAnimationAdapterCompat(wrapper, duration, 0));
     }
 
     /**
@@ -63,7 +67,7 @@
         }
     }
 
-    static int getLayer(RemoteAnimationTargetCompat target, int boostModeTarget) {
+    public static int getLayer(RemoteAnimationTargetCompat target, int boostModeTarget) {
         return target.mode == boostModeTarget
                 ? Z_BOOST_BASE + target.prefixOrderIndex
                 : target.prefixOrderIndex;
@@ -72,7 +76,7 @@
     /**
      * @return the target with the lowest opaque layer for a certain app animation, or null.
      */
-    static RemoteAnimationTargetCompat findLowestOpaqueLayerTarget(
+    public static RemoteAnimationTargetCompat findLowestOpaqueLayerTarget(
             RemoteAnimationTargetCompat[] appTargets, int mode) {
         int lowestLayer = Integer.MAX_VALUE;
         int lowestLayerIndex = -1;