diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index e9385d9..4ffe582 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -278,8 +278,6 @@
     private RunningWindowAnim[] mRunningWindowAnim;
     // Possible second animation running at the same time as mRunningWindowAnim
     private Animator mParallelRunningAnim;
-    // Current running divider animation
-    private ValueAnimator mDividerAnimator;
     private boolean mIsMotionPaused;
     private boolean mHasMotionEverBeenPaused;
 
@@ -325,8 +323,8 @@
     private final boolean mIsTransientTaskbar;
     // May be set to false when mIsTransientTaskbar is true.
     private boolean mCanSlowSwipeGoHome = true;
-    private boolean mHasReachedOverviewThreshold = false;
-    private boolean mDividerHiddenBeforeAnimation = false;
+    // Indicates whether the divider is shown, only used when split screen is activated.
+    private boolean mIsDividerShown = true;
 
     @Nullable
     private RemoteAnimationTargets.ReleaseCheck mSwipePipToHomeReleaseCheck = null;
@@ -767,10 +765,6 @@
 
     private void setIsLikelyToStartNewTask(boolean isLikelyToStartNewTask, boolean animate) {
         if (mIsLikelyToStartNewTask != isLikelyToStartNewTask) {
-            if (isLikelyToStartNewTask && mIsTransientTaskbar) {
-                setDividerShown(false /* shown */, true /* immediate */);
-            }
-
             mIsLikelyToStartNewTask = isLikelyToStartNewTask;
             maybeUpdateRecentsAttachedState(animate);
         }
@@ -1110,9 +1104,8 @@
                 } else {
                     mStateCallback.setState(STATE_RESUME_LAST_TASK);
                 }
-                if (mRecentsAnimationTargets != null) {
-                    setDividerShown(true /* shown */, true /* immediate */);
-                }
+                // Restore the divider as it resumes the last top-tasks.
+                setDividerShown(true);
                 break;
         }
         ActiveGestureLog.INSTANCE.addLog(
@@ -1284,9 +1277,6 @@
             if (mRecentsAnimationController != null) {
                 mRecentsAnimationController.detachNavigationBarFromApp(true);
             }
-            if (mIsTransientTaskbar) {
-                setDividerShown(false /* shown */, true /* immediate */);
-            }
         } else if (endTarget == RECENTS) {
             if (mRecentsView != null) {
                 int nearestPage = mRecentsView.getDestinationPage();
@@ -1685,12 +1675,6 @@
         }
 
         mRecentsAnimationController.enableInputConsumer();
-
-        // Start hiding the divider
-        if (!mIsTransientTaskbar || mTaskbarAlreadyOpen || mIsTaskbarAllAppsOpen
-                || mDividerHiddenBeforeAnimation) {
-            setDividerShown(false /* shown */, true /* immediate */);
-        }
     }
 
     private void computeRecentsScrollIfInvisible() {
@@ -2154,9 +2138,6 @@
 
     @Override
     public void onRecentsAnimationFinished(RecentsAnimationController controller) {
-        if (!controller.getFinishTargetIsLauncher()) {
-            setDividerShown(true /* shown */, false /* immediate */);
-        }
         mRecentsAnimationController = null;
         mRecentsAnimationTargets = null;
         if (mRecentsView != null) {
@@ -2256,18 +2237,23 @@
         boolean notSwipingToHome = mRecentsAnimationTargets != null
                 && mGestureState.getEndTarget() != HOME;
         boolean setRecentsScroll = mRecentsViewScrollLinked && mRecentsView != null;
+        float progress = Math.max(mCurrentShift.value, getScaleProgressDueToScroll());
+        int scrollOffset = setRecentsScroll ? mRecentsView.getScrollOffset() : 0;
+        if (progress > 0 || scrollOffset != 0) {
+            // Hide the divider as the tasks start moving.
+            setDividerShown(false);
+        }
         for (RemoteTargetHandle remoteHandle : mRemoteTargetHandles) {
             AnimatorControllerWithResistance playbackController =
                     remoteHandle.getPlaybackController();
             if (playbackController != null) {
-                playbackController.setProgress(Math.max(mCurrentShift.value,
-                        getScaleProgressDueToScroll()), mDragLengthFactor);
+                playbackController.setProgress(progress, mDragLengthFactor);
             }
 
             if (notSwipingToHome) {
                 TaskViewSimulator taskViewSimulator = remoteHandle.getTaskViewSimulator();
                 if (setRecentsScroll) {
-                    taskViewSimulator.setScroll(mRecentsView.getScrollOffset());
+                    taskViewSimulator.setScroll(scrollOffset);
                 }
                 taskViewSimulator.apply(remoteHandle.getTransformParams());
             }
@@ -2326,10 +2312,6 @@
 
         // "Catch up" with the displacement at mTaskbarCatchUpThreshold.
         if (displacement < mTaskbarCatchUpThreshold) {
-            if (!mHasReachedOverviewThreshold) {
-                setDividerShown(false /* shown */, true /* immediate */);
-                mHasReachedOverviewThreshold = true;
-            }
             return Utilities.mapToRange(displacement, mTaskbarAppWindowThreshold,
                     mTaskbarCatchUpThreshold, 0, mTaskbarCatchUpThreshold, ACCEL_DEACCEL);
         }
@@ -2337,23 +2319,13 @@
         return displacement;
     }
 
-    private void setDividerShown(boolean shown, boolean immediate) {
-        if (mRecentsAnimationTargets == null) {
-            if (!shown) {
-                mDividerHiddenBeforeAnimation = true;
-            }
+    private void setDividerShown(boolean shown) {
+        if (mRecentsAnimationTargets == null || mIsDividerShown == shown) {
             return;
         }
-        if (mDividerAnimator != null) {
-            mDividerAnimator.cancel();
-        }
-        mDividerAnimator = TaskViewUtils.createSplitAuxiliarySurfacesAnimator(
-                mRecentsAnimationTargets.nonApps, shown, (dividerAnimator) -> {
-                    dividerAnimator.start();
-                    if (immediate) {
-                        dividerAnimator.end();
-                    }
-                });
+        mIsDividerShown = shown;
+        TaskViewUtils.createSplitAuxiliarySurfacesAnimator(
+                mRecentsAnimationTargets.nonApps, shown, null /* animatorHandler */);
     }
 
     /**
diff --git a/quickstep/src/com/android/quickstep/TaskAnimationManager.java b/quickstep/src/com/android/quickstep/TaskAnimationManager.java
index 725f9e7..dde5d55 100644
--- a/quickstep/src/com/android/quickstep/TaskAnimationManager.java
+++ b/quickstep/src/com/android/quickstep/TaskAnimationManager.java
@@ -188,12 +188,8 @@
                         return;
                     }
                 } else if (nonAppTargets.length > 0) {
-                    TaskViewUtils.createSplitAuxiliarySurfacesAnimator(
-                            nonAppTargets /* nonApps */,
-                            true /*shown*/, dividerAnimator -> {
-                                dividerAnimator.start();
-                                dividerAnimator.end();
-                            });
+                    TaskViewUtils.createSplitAuxiliarySurfacesAnimator(nonAppTargets /* nonApps */,
+                            true /*shown*/, null /* animatorHandler */);
                 }
                 if (mController != null) {
                     if (mLastAppearedTaskTarget == null
diff --git a/quickstep/src/com/android/quickstep/TaskViewUtils.java b/quickstep/src/com/android/quickstep/TaskViewUtils.java
index da97df6..f0d0bdb 100644
--- a/quickstep/src/com/android/quickstep/TaskViewUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskViewUtils.java
@@ -679,28 +679,36 @@
     /**
      * Creates an animation to show/hide the auxiliary surfaces (aka. divider bar), only calling
      * {@param animatorHandler} if there are valid surfaces to animate.
+     * Passing null handler to apply the visibility immediately.
      *
      * @return the animator animating the surfaces
      */
     public static ValueAnimator createSplitAuxiliarySurfacesAnimator(
-            RemoteAnimationTarget[] nonApps, boolean shown,
-            Consumer<ValueAnimator> animatorHandler) {
+            @Nullable RemoteAnimationTarget[] nonApps, boolean shown,
+            @Nullable Consumer<ValueAnimator> animatorHandler) {
         if (nonApps == null || nonApps.length == 0) {
             return null;
         }
 
-        SurfaceControl.Transaction t = new SurfaceControl.Transaction();
-        List<SurfaceControl> auxiliarySurfaces = new ArrayList<>(nonApps.length);
-        boolean hasSurfaceToAnimate = false;
-        for (int i = 0; i < nonApps.length; ++i) {
-            final RemoteAnimationTarget targ = nonApps[i];
-            final SurfaceControl leash = targ.leash;
-            if (targ.windowType == TYPE_DOCK_DIVIDER && leash != null && leash.isValid()) {
+        List<SurfaceControl> auxiliarySurfaces = new ArrayList<>();
+        for (RemoteAnimationTarget target : nonApps) {
+            final SurfaceControl leash = target.leash;
+            if (target.windowType == TYPE_DOCK_DIVIDER && leash != null && leash.isValid()) {
                 auxiliarySurfaces.add(leash);
-                hasSurfaceToAnimate = true;
             }
         }
-        if (!hasSurfaceToAnimate) {
+        if (auxiliarySurfaces.isEmpty()) {
+            return null;
+        }
+
+        SurfaceControl.Transaction t = new SurfaceControl.Transaction();
+        if (animatorHandler == null) {
+            // Apply the visibility directly without fade animation.
+            for (SurfaceControl leash : auxiliarySurfaces) {
+                t.setVisibility(leash, shown);
+            }
+            t.apply();
+            t.close();
             return null;
         }