diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitLayout.java b/libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitLayout.java
index 040fffae3e848..b8ac87fa5d4cf 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitLayout.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitLayout.java
@@ -93,7 +93,7 @@ public final class SplitLayout implements DisplayInsetsController.OnInsetsChange
     private final InsetsState mInsetsState = new InsetsState();
 
     private Context mContext;
-    private DividerSnapAlgorithm mDividerSnapAlgorithm;
+    @VisibleForTesting DividerSnapAlgorithm mDividerSnapAlgorithm;
     private WindowContainerToken mWinToken1;
     private WindowContainerToken mWinToken2;
     private int mDividePosition;
@@ -294,20 +294,22 @@ public final class SplitLayout implements DisplayInsetsController.OnInsetsChange
         mSplitLayoutHandler.onLayoutSizeChanging(this);
     }
 
-    void setDividePosition(int position) {
+    void setDividePosition(int position, boolean applyLayoutChange) {
         mDividePosition = position;
         updateBounds(mDividePosition);
-        mSplitLayoutHandler.onLayoutSizeChanged(this);
+        if (applyLayoutChange) {
+            mSplitLayoutHandler.onLayoutSizeChanged(this);
+        }
     }
 
-    /** Sets divide position base on the ratio within root bounds. */
+    /** Updates divide position and split bounds base on the ratio within root bounds. */
     public void setDivideRatio(float ratio) {
         final int position = isLandscape()
                 ? mRootBounds.left + (int) (mRootBounds.width() * ratio)
                 : mRootBounds.top + (int) (mRootBounds.height() * ratio);
-        DividerSnapAlgorithm.SnapTarget snapTarget =
+        final DividerSnapAlgorithm.SnapTarget snapTarget =
                 mDividerSnapAlgorithm.calculateNonDismissingSnapTarget(position);
-        setDividePosition(snapTarget.position);
+        setDividePosition(snapTarget.position, false /* applyLayoutChange */);
     }
 
     /** Resets divider position. */
@@ -336,7 +338,7 @@ public final class SplitLayout implements DisplayInsetsController.OnInsetsChange
                 break;
             default:
                 flingDividePosition(currentPosition, snapTarget.position,
-                        () -> setDividePosition(snapTarget.position));
+                        () -> setDividePosition(snapTarget.position, true /* applyLayoutChange */));
                 break;
         }
     }
@@ -389,7 +391,7 @@ public final class SplitLayout implements DisplayInsetsController.OnInsetsChange
 
             @Override
             public void onAnimationCancel(Animator animation) {
-                setDividePosition(to);
+                setDividePosition(to, true /* applyLayoutChange */);
             }
         });
         animator.start();
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 d1feee4803c19..9eef09bbe43dc 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
@@ -341,12 +341,12 @@ class StageCoordinator implements SplitLayout.SplitLayoutHandler,
         sideOptions = sideOptions != null ? sideOptions : new Bundle();
         setSideStagePosition(sidePosition, wct);
 
+        mSplitLayout.setDivideRatio(splitRatio);
         // Build a request WCT that will launch both apps such that task 0 is on the main stage
         // while task 1 is on the side stage.
         mMainStage.activate(getMainStageBounds(), wct, false /* reparent */);
         mSideStage.setBounds(getSideStageBounds(), wct);
 
-        mSplitLayout.setDivideRatio(splitRatio);
         // Make sure the launch options will put tasks in the corresponding split roots
         addActivityOptions(mainOptions, mMainStage);
         addActivityOptions(sideOptions, mSideStage);
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/common/split/SplitLayoutTests.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/common/split/SplitLayoutTests.java
index 453050fcfab4f..83d5f04b7cdb9 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/common/split/SplitLayoutTests.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/common/split/SplitLayoutTests.java
@@ -24,6 +24,7 @@ import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
 
@@ -101,14 +102,21 @@ public class SplitLayoutTests extends ShellTestCase {
 
     @Test
     public void testSetDividePosition() {
-        mSplitLayout.setDividePosition(anyInt());
+        mSplitLayout.setDividePosition(100, false /* applyLayoutChange */);
+        assertThat(mSplitLayout.getDividePosition()).isEqualTo(100);
+        verify(mSplitLayoutHandler, never()).onLayoutSizeChanged(any(SplitLayout.class));
+
+        mSplitLayout.setDividePosition(200, true /* applyLayoutChange */);
+        assertThat(mSplitLayout.getDividePosition()).isEqualTo(200);
         verify(mSplitLayoutHandler).onLayoutSizeChanged(any(SplitLayout.class));
     }
 
     @Test
     public void testSetDivideRatio() {
+        mSplitLayout.setDividePosition(200, false /* applyLayoutChange */);
         mSplitLayout.setDivideRatio(0.5f);
-        verify(mSplitLayoutHandler).onLayoutSizeChanged(any(SplitLayout.class));
+        assertThat(mSplitLayout.getDividePosition()).isEqualTo(
+                mSplitLayout.mDividerSnapAlgorithm.getMiddleTarget().position);
     }
 
     @Test