diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index c04d15f..957484b 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -740,6 +740,8 @@
             mRecentsAnimationStartCallbacks.clear();
         }
 
+        TaskViewUtils.setDividerBarShown(mRecentsAnimationTargets.nonApps, false);
+
         // Only add the callback to enable the input consumer after we actually have the controller
         mStateCallback.runOnceAtState(STATE_APP_CONTROLLER_RECEIVED | STATE_GESTURE_STARTED,
                 mRecentsAnimationController::enableInputConsumer);
@@ -754,6 +756,8 @@
         mActivityInitListener.unregister();
         mStateCallback.setStateOnUiThread(STATE_GESTURE_CANCELLED | STATE_HANDLER_INVALIDATED);
 
+        TaskViewUtils.setDividerBarShown(mRecentsAnimationTargets.nonApps, true);
+
         // Defer clearing the controller and the targets until after we've updated the state
         mRecentsAnimationController = null;
         mRecentsAnimationTargets = null;
@@ -882,6 +886,7 @@
                 break;
             case LAST_TASK:
                 mStateCallback.setState(STATE_RESUME_LAST_TASK);
+                TaskViewUtils.setDividerBarShown(mRecentsAnimationTargets.nonApps, true);
                 break;
         }
         ActiveGestureLog.INSTANCE.addLog("onSettledOnEndTarget " + endTarget);
@@ -1723,6 +1728,9 @@
 
     @Override
     public void onRecentsAnimationFinished(RecentsAnimationController controller) {
+        if (!controller.getFinishTargetIsLauncher()) {
+            TaskViewUtils.setDividerBarShown(mRecentsAnimationTargets.nonApps, true);
+        }
         mRecentsAnimationController = null;
         mRecentsAnimationTargets = null;
         if (mRecentsView != null) {
diff --git a/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java b/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java
index a21c714..239233b 100644
--- a/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java
+++ b/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java
@@ -19,6 +19,7 @@
 
 import android.graphics.Rect;
 import android.util.ArraySet;
+import android.view.RemoteAnimationTarget;
 
 import androidx.annotation.BinderThread;
 import androidx.annotation.UiThread;
@@ -39,6 +40,7 @@
         com.android.systemui.shared.system.RecentsAnimationListener {
 
     private final Set<RecentsAnimationListener> mListeners = new ArraySet<>();
+    private final SystemUiProxy mSystemUiProxy;
     private final boolean mAllowMinimizeSplitScreen;
 
     // TODO(141886704): Remove these references when they are no longer needed
@@ -46,7 +48,9 @@
 
     private boolean mCancelled;
 
-    public RecentsAnimationCallbacks(boolean allowMinimizeSplitScreen) {
+    public RecentsAnimationCallbacks(SystemUiProxy systemUiProxy,
+            boolean allowMinimizeSplitScreen) {
+        mSystemUiProxy = systemUiProxy;
         mAllowMinimizeSplitScreen = allowMinimizeSplitScreen;
     }
 
@@ -89,8 +93,11 @@
             RemoteAnimationTargetCompat[] appTargets,
             RemoteAnimationTargetCompat[] wallpaperTargets,
             Rect homeContentInsets, Rect minimizedHomeBounds) {
+        RemoteAnimationTarget[] nonAppTargets =
+                mSystemUiProxy.onGoingToRecentsLegacy(mCancelled);
         RecentsAnimationTargets targets = new RecentsAnimationTargets(appTargets,
-                wallpaperTargets, homeContentInsets, minimizedHomeBounds);
+                wallpaperTargets, RemoteAnimationTargetCompat.wrap(nonAppTargets),
+                homeContentInsets, minimizedHomeBounds);
         mController = new RecentsAnimationController(animationController,
                 mAllowMinimizeSplitScreen, this::onAnimationFinished);
 
diff --git a/quickstep/src/com/android/quickstep/RecentsAnimationTargets.java b/quickstep/src/com/android/quickstep/RecentsAnimationTargets.java
index 3861bab..b6d9016 100644
--- a/quickstep/src/com/android/quickstep/RecentsAnimationTargets.java
+++ b/quickstep/src/com/android/quickstep/RecentsAnimationTargets.java
@@ -31,9 +31,9 @@
     public final Rect minimizedHomeBounds;
 
     public RecentsAnimationTargets(RemoteAnimationTargetCompat[] apps,
-            RemoteAnimationTargetCompat[] wallpapers, Rect homeContentInsets,
-            Rect minimizedHomeBounds) {
-        super(apps, wallpapers, new RemoteAnimationTargetCompat[0], MODE_CLOSING);
+            RemoteAnimationTargetCompat[] wallpapers, RemoteAnimationTargetCompat[] nonApps,
+            Rect homeContentInsets, Rect minimizedHomeBounds) {
+        super(apps, wallpapers, nonApps, MODE_CLOSING);
         this.homeContentInsets = homeContentInsets;
         this.minimizedHomeBounds = minimizedHomeBounds;
     }
diff --git a/quickstep/src/com/android/quickstep/SystemUiProxy.java b/quickstep/src/com/android/quickstep/SystemUiProxy.java
index 6226fb0..d6b95c1 100644
--- a/quickstep/src/com/android/quickstep/SystemUiProxy.java
+++ b/quickstep/src/com/android/quickstep/SystemUiProxy.java
@@ -34,6 +34,7 @@
 import android.util.Log;
 import android.view.MotionEvent;
 import android.view.RemoteAnimationAdapter;
+import android.view.RemoteAnimationTarget;
 import android.view.SurfaceControl;
 
 import com.android.launcher3.util.MainThreadInitializedObject;
@@ -612,6 +613,24 @@
         }
     }
 
+    /**
+     * Call this when going to recents so that shell can set-up and provide appropriate leashes
+     * for animation (eg. DividerBar).
+     *
+     * @param cancel true if recents starting is being cancelled.
+     * @return RemoteAnimationTargets of windows that need to animate but only exist in shell.
+     */
+    public RemoteAnimationTarget[] onGoingToRecentsLegacy(boolean cancel) {
+        if (mSplitScreen != null) {
+            try {
+                return mSplitScreen.onGoingToRecentsLegacy(cancel);
+            } catch (RemoteException e) {
+                Log.w(TAG, "Failed call onGoingToRecentsLegacy");
+            }
+        }
+        return null;
+    }
+
     //
     // One handed
     //
diff --git a/quickstep/src/com/android/quickstep/TaskAnimationManager.java b/quickstep/src/com/android/quickstep/TaskAnimationManager.java
index 33718a3..fe07cbd 100644
--- a/quickstep/src/com/android/quickstep/TaskAnimationManager.java
+++ b/quickstep/src/com/android/quickstep/TaskAnimationManager.java
@@ -109,7 +109,8 @@
 
         final BaseActivityInterface activityInterface = gestureState.getActivityInterface();
         mLastGestureState = gestureState;
-        mCallbacks = new RecentsAnimationCallbacks(activityInterface.allowMinimizeSplitScreen());
+        mCallbacks = new RecentsAnimationCallbacks(SystemUiProxy.INSTANCE.get(mCtx),
+                activityInterface.allowMinimizeSplitScreen());
         mCallbacks.addListener(new RecentsAnimationCallbacks.RecentsAnimationListener() {
             @Override
             public void onRecentsAnimationStart(RecentsAnimationController controller,
diff --git a/quickstep/src/com/android/quickstep/TaskViewUtils.java b/quickstep/src/com/android/quickstep/TaskViewUtils.java
index a85a24d..f292f1a 100644
--- a/quickstep/src/com/android/quickstep/TaskViewUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskViewUtils.java
@@ -15,6 +15,7 @@
  */
 package com.android.quickstep;
 
+import static android.view.WindowManager.LayoutParams.TYPE_DOCK_DIVIDER;
 import static android.view.WindowManager.TRANSIT_OPEN;
 import static android.view.WindowManager.TRANSIT_TO_FRONT;
 
@@ -452,6 +453,10 @@
         PendingAnimation pa = new PendingAnimation(RECENTS_LAUNCH_DURATION);
         createRecentsWindowAnimator(taskView, skipLauncherChanges, appTargets, wallpaperTargets,
                 nonAppTargets, depthController, pa);
+        if (launcherClosing) {
+            // TODO(b/182592057): differentiate between "restore split" vs "launch fullscreen app"
+            TaskViewUtils.setDividerBarShown(nonAppTargets, true);
+        }
 
         Animator childStateAnimation = null;
         // Found a visible recents task that matches the opening app, lets launch the app from there
@@ -504,4 +509,19 @@
         stateManager.setCurrentAnimation(anim, childStateAnimation);
         anim.addListener(windowAnimEndListener);
     }
+
+    static void setDividerBarShown(RemoteAnimationTargetCompat[] nonApps, boolean shown) {
+        // TODO(b/182592057): make this part of the animations instead.
+        if (nonApps != null && nonApps.length > 0) {
+            for (int i = 0; i < nonApps.length; ++i) {
+                final RemoteAnimationTargetCompat targ = nonApps[i];
+                if (targ.windowType == TYPE_DOCK_DIVIDER) {
+                    SurfaceControl.Transaction t = new SurfaceControl.Transaction();
+                    t.setVisibility(targ.leash.getSurfaceControl(), shown);
+                    t.apply();
+                    t.close();
+                }
+            }
+        }
+    }
 }