diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
index 2f0cb7e..71ee690 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
@@ -207,6 +207,7 @@
     private boolean mIsDividerRemoteAnimating;
     private boolean mIsDropEntering;
     private boolean mIsExiting;
+    private boolean mIsRootTranslucent;
 
     private DefaultMixedHandler mMixedHandler;
     private final Toast mSplitUnsupportedToast;
@@ -422,6 +423,11 @@
             }
         }
 
+        if (!isSplitActive()) {
+            // prevent the fling divider to center transitioni if split screen didn't active.
+            mIsDropEntering = true;
+        }
+
         setSideStagePosition(sideStagePosition, wct);
         final WindowContainerTransaction evictWct = new WindowContainerTransaction();
         targetStage.evictAllChildren(evictWct);
@@ -436,28 +442,13 @@
         // reparent the task to an invisible split root will make the activity invisible.  Reorder
         // the root task to front to make the entering transition from pip to split smooth.
         wct.reorder(mRootTaskInfo.token, true);
-        wct.setForceTranslucent(mRootTaskInfo.token, true);
         wct.reorder(targetStage.mRootTaskInfo.token, true);
-        wct.setForceTranslucent(targetStage.mRootTaskInfo.token, true);
-        // prevent the fling divider to center transition
-        mIsDropEntering = true;
-
         targetStage.addTask(task, wct);
 
-        if (ENABLE_SHELL_TRANSITIONS) {
-            prepareEnterSplitScreen(wct);
-            mSplitTransitions.startEnterTransition(TRANSIT_SPLIT_SCREEN_OPEN_TO_SIDE, wct,
-                    null, this, null /* consumedCallback */, (finishWct, finishT) -> {
-                        if (!evictWct.isEmpty()) {
-                            finishWct.merge(evictWct, true);
-                        }
-                    } /* finishedCallback */);
-        } else {
-            if (!evictWct.isEmpty()) {
-                wct.merge(evictWct, true /* transfer */);
-            }
-            mTaskOrganizer.applyTransaction(wct);
+        if (!evictWct.isEmpty()) {
+            wct.merge(evictWct, true /* transfer */);
         }
+        mTaskOrganizer.applyTransaction(wct);
         return true;
     }
 
@@ -716,7 +707,7 @@
         mSplitLayout.setDivideRatio(splitRatio);
         updateWindowBounds(mSplitLayout, wct);
         wct.reorder(mRootTaskInfo.token, true);
-        wct.setForceTranslucent(mRootTaskInfo.token, false);
+        setRootForceTranslucent(false, wct);
 
         // Make sure the launch options will put tasks in the corresponding split roots
         mainOptions = mainOptions != null ? mainOptions : new Bundle();
@@ -923,7 +914,7 @@
 
         updateWindowBounds(mSplitLayout, wct);
         wct.reorder(mRootTaskInfo.token, true);
-        wct.setForceTranslucent(mRootTaskInfo.token, false);
+        setRootForceTranslucent(false, wct);
 
         // TODO(b/268008375): Merge APIs to start a split pair into one.
         if (mainTaskId != INVALID_TASK_ID) {
@@ -1344,7 +1335,7 @@
             mSideStage.removeAllTasks(wct, false /* toTop */);
             mMainStage.deactivate(wct, false /* toTop */);
             wct.reorder(mRootTaskInfo.token, false /* onTop */);
-            wct.setForceTranslucent(mRootTaskInfo.token, true);
+            setRootForceTranslucent(true, wct);
             wct.setBounds(mSideStage.mRootTaskInfo.token, mTempRect1);
             onTransitionAnimationComplete();
         } else {
@@ -1376,7 +1367,7 @@
                     mMainStage.deactivate(finishedWCT, childrenToTop == mMainStage /* toTop */);
                     mSideStage.removeAllTasks(finishedWCT, childrenToTop == mSideStage /* toTop */);
                     finishedWCT.reorder(mRootTaskInfo.token, false /* toTop */);
-                    finishedWCT.setForceTranslucent(mRootTaskInfo.token, true);
+                    setRootForceTranslucent(true, wct);
                     finishedWCT.setBounds(mSideStage.mRootTaskInfo.token, mTempRect1);
                     mSyncQueue.queue(finishedWCT);
                     mSyncQueue.runInSync(at -> {
@@ -1488,7 +1479,7 @@
         mMainStage.activate(wct, true /* includingTopTask */);
         updateWindowBounds(mSplitLayout, wct);
         wct.reorder(mRootTaskInfo.token, true);
-        wct.setForceTranslucent(mRootTaskInfo.token, false);
+        setRootForceTranslucent(false, wct);
     }
 
     void finishEnterSplitScreen(SurfaceControl.Transaction t) {
@@ -1692,6 +1683,7 @@
 
         mRootTaskInfo = null;
         mRootTaskLeash = null;
+        mIsRootTranslucent = false;
     }
 
 
@@ -1710,7 +1702,7 @@
         // Make the stages adjacent to each other so they occlude what's behind them.
         wct.setAdjacentRoots(mMainStage.mRootTaskInfo.token, mSideStage.mRootTaskInfo.token);
         wct.setLaunchAdjacentFlagRoot(mSideStage.mRootTaskInfo.token);
-        wct.setForceTranslucent(mRootTaskInfo.token, true);
+        setRootForceTranslucent(true, wct);
         mSplitLayout.getInvisibleBounds(mTempRect1);
         wct.setBounds(mSideStage.mRootTaskInfo.token, mTempRect1);
         mSyncQueue.queue(wct);
@@ -1734,7 +1726,7 @@
             mSideStage.evictOtherChildren(wct, taskId);
             updateWindowBounds(mSplitLayout, wct);
             wct.reorder(mRootTaskInfo.token, true);
-            wct.setForceTranslucent(mRootTaskInfo.token, false);
+            setRootForceTranslucent(false, wct);
 
             mSyncQueue.queue(wct);
             mSyncQueue.runInSync(t -> {
@@ -1758,6 +1750,13 @@
         mDisplayInsetsController.removeInsetsChangedListener(mDisplayId, mSplitLayout);
     }
 
+    private void setRootForceTranslucent(boolean translucent, WindowContainerTransaction wct) {
+        if (mIsRootTranslucent == translucent) return;
+
+        mIsRootTranslucent = translucent;
+        wct.setForceTranslucent(mRootTaskInfo.token, translucent);
+    }
+
     private void onStageVisibilityChanged(StageListenerImpl stageListener) {
         // If split didn't active, just ignore this callback because we should already did these
         // on #applyExitSplitScreen.
@@ -1784,12 +1783,11 @@
             // Split entering background.
             wct.setReparentLeafTaskIfRelaunch(mRootTaskInfo.token,
                     true /* setReparentLeafTaskIfRelaunch */);
-            if (!mMainStage.mRootTaskInfo.isSleeping && !mSideStage.mRootTaskInfo.isSleeping) {
-                wct.setForceTranslucent(mRootTaskInfo.token, true);
-            }
+            setRootForceTranslucent(true, wct);
         } else {
             wct.setReparentLeafTaskIfRelaunch(mRootTaskInfo.token,
                     false /* setReparentLeafTaskIfRelaunch */);
+            setRootForceTranslucent(false, wct);
         }
 
         mSyncQueue.queue(wct);
@@ -1921,7 +1919,7 @@
                 mMainStage.activate(wct, true /* includingTopTask */);
                 updateWindowBounds(mSplitLayout, wct);
                 wct.reorder(mRootTaskInfo.token, true);
-                wct.setForceTranslucent(mRootTaskInfo.token, false);
+                setRootForceTranslucent(false, wct);
             }
 
             mSyncQueue.queue(wct);