Fix invalidate code path (#2273209).

Cached views would, in some situations, not update if they contained an
animating child. This was caused by clearing the dirty cache flag too
early in View.buildDrawingCache().

Approved by Dr. No mcleron.

Change-Id: I8c5f2fc3e6605657e0da625d60d50b55bb133666

1 files changed, 4 insertions, 3 deletions

diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 0b87536..1fc3678 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -4324,8 +4324,9 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
             requestLayout();
             invalidate();
 
-            if (((mViewFlags & VISIBILITY_MASK) == GONE) && hasFocus()) {
-                clearFocus();
+            if (((mViewFlags & VISIBILITY_MASK) == GONE)) {
+                if (hasFocus()) clearFocus();
+                destroyDrawingCache();
             }
             if (mAttachInfo != null) {
                 mAttachInfo.mViewVisibilityChanged = true;
@@ -6283,6 +6284,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
             canvas.translate(-mScrollX, -mScrollY);
 
             mPrivateFlags |= DRAWN;
+            mPrivateFlags |= DRAWING_CACHE_VALID;
 
             // Fast path for layouts with no backgrounds
             if ((mPrivateFlags & SKIP_DRAW) == SKIP_DRAW) {
@@ -6301,7 +6303,6 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
                 // Restore the cached Canvas for our siblings
                 attachInfo.mCanvas = canvas;
             }
-            mPrivateFlags |= DRAWING_CACHE_VALID;
         }
     }