Merge "Only add divider when it need to show" into rvc-dev

Author: Tony Huang

core/java/android/view/WindowlessWindowManager.java

@@ -41,7 +41,6 @@ public class WindowlessWindowManager implements IWindowSession {
     private final static String TAG = "WindowlessWindowManager";
 
     private class State {
-        //TODO : b/150190730 we should create it when view show and release it when view invisible.
         SurfaceControl mSurfaceControl;
         WindowManager.LayoutParams mParams = new WindowManager.LayoutParams();
         int mDisplayId;

packages/SystemUI/src/com/android/systemui/stackdivider/Divider.java

@@ -238,7 +238,10 @@ public void onDisplayConfigurationChanged(int displayId, Configuration newConfig
             mSplitLayout.mSecondary = new Rect(mRotateSplitLayout.mSecondary);
             mRotateSplitLayout = null;
         }
-        update(newConfig);
+
+        if (isSplitActive()) {
+            update(newConfig);
+        }
     }
 
     Handler getHandler() {
@@ -313,11 +316,6 @@ void onTaskVanished() {
         mHandler.post(this::removeDivider);
     }
 
-    void onTasksReady() {
-        mHandler.post(() -> update(mDisplayController.getDisplayContext(
-                mContext.getDisplayId()).getResources().getConfiguration()));
-    }
-
     private void updateVisibility(final boolean visible) {
         if (DEBUG) Slog.d(TAG, "Updating visibility " + mVisible + "->" + visible);
         if (mVisible != visible) {

packages/SystemUI/src/com/android/systemui/stackdivider/SplitScreenTaskOrganizer.java

@@ -113,8 +113,6 @@ public void onTaskAppeared(RunningTaskInfo taskInfo, SurfaceControl leash) {
                 t.setColor(mSecondaryDim, new float[]{0f, 0f, 0f});
                 t.apply();
                 releaseTransaction(t);
-
-                mDivider.onTasksReady();
             }
         }
     }