Merge "Fix bug where thumbnails flashed more often in Recents" into jb-mr2-dev

1 files changed, 15 insertions, 2 deletions

diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index 3862c326ea73..b63ccab6de85 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -211,6 +211,7 @@ public final class ViewRootImpl implements ViewParent,
     boolean mHasHadWindowFocus;
     boolean mLastWasImTarget;
     boolean mWindowsAnimating;
+    boolean mDrawDuringWindowsAnimating;
     boolean mIsDrawing;
     int mLastSystemUiVisibility;
     int mClientWindowLayoutFlags;
@@ -1396,8 +1397,10 @@ public final class ViewRootImpl implements ViewParent,
 
                 final int surfaceGenerationId = mSurface.getGenerationId();
                 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending);
-                mWindowsAnimating |=
-                        (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0;
+                if (!mDrawDuringWindowsAnimating) {
+                    mWindowsAnimating |=
+                            (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0;
+                }
 
                 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString()
                         + " overscan=" + mPendingOverscanInsets.toShortString()
@@ -2572,6 +2575,16 @@ public final class ViewRootImpl implements ViewParent,
         displayLists.clear();
     }
 
+    /**
+     * @hide
+     */
+    public void setDrawDuringWindowsAnimating(boolean value) {
+        mDrawDuringWindowsAnimating = value;
+        if (value) {
+            handleDispatchDoneAnimating();
+        }
+    }
+
     boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) {
         final View.AttachInfo attachInfo = mAttachInfo;
         final Rect ci = attachInfo.mContentInsets;