Perform all layouts within first loop.

Do not begin animation while layout requests are still
outstanding.

Bug: 7333622 fixed.
Change-Id: I77c2cdc123c1e26f9661feade0d9a1843c75d5f6

1 files changed, 9 insertions, 1 deletions

diff --git a/services/java/com/android/server/wm/WindowManagerService.java b/services/java/com/android/server/wm/WindowManagerService.java
index c341872..5b0f4fb 100755
--- a/services/java/com/android/server/wm/WindowManagerService.java
+++ b/services/java/com/android/server/wm/WindowManagerService.java
@@ -8117,8 +8117,16 @@ public class WindowManagerService extends IWindowManager.Stub
         }
     }
 
-    private boolean mInLayout = false;
     private final void performLayoutAndPlaceSurfacesLocked() {
+        do {
+            mTraversalScheduled = false;
+            performLayoutAndPlaceSurfacesLockedLoop();
+            mH.removeMessages(H.DO_TRAVERSAL);
+        } while (mTraversalScheduled);
+    }
+
+    private boolean mInLayout = false;
+    private final void performLayoutAndPlaceSurfacesLockedLoop() {
         if (mInLayout) {
             if (DEBUG) {
                 throw new RuntimeException("Recursive call!");