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

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

@@ -253,7 +253,9 @@ public class Divider extends SystemUI implements DividerView.DividerCallbacks,
             mSplitLayout.mSecondary = new Rect(mRotateSplitLayout.mSecondary);
             mRotateSplitLayout = null;
         }
-        update(newConfig);
+        if (isSplitActive()) {
+            update(newConfig);
+        }
     }
 
     Handler getHandler() {
@@ -328,11 +330,6 @@ public class Divider extends SystemUI implements DividerView.DividerCallbacks,
         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) {
@@ -534,7 +531,7 @@ public class Divider extends SystemUI implements DividerView.DividerCallbacks,
 
     void ensureMinimizedSplit() {
         setHomeMinimized(true /* minimized */, mHomeStackResizable);
-        if (!isDividerVisible()) {
+        if (mView != null && !isDividerVisible()) {
             // Wasn't in split-mode yet, so enter now.
             if (DEBUG) {
                 Slog.d(TAG, " entering split mode with minimized=true");
@@ -545,7 +542,7 @@ public class Divider extends SystemUI implements DividerView.DividerCallbacks,
 
     void ensureNormalSplit() {
         setHomeMinimized(false /* minimized */, mHomeStackResizable);
-        if (!isDividerVisible()) {
+        if (mView != null && !isDividerVisible()) {
             // Wasn't in split-mode, so enter now.
             if (DEBUG) {
                 Slog.d(TAG, " enter split mode unminimized ");

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

@@ -113,8 +113,6 @@ class SplitScreenTaskOrganizer extends TaskOrganizer {
                 t.setColor(mSecondaryDim, new float[]{0f, 0f, 0f});
                 t.apply();
                 releaseTransaction(t);
-
-                mDivider.onTasksReady();
             }
         }
     }