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Commit a53c3b21 authored by Alan Viverette's avatar Alan Viverette
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Don't verify the scrollbar drawable 

Avoids infinite invalidations caused by re-use of scrollbar drawable
during a single draw() pass. Does not address the general problem of
drawable reuse causing unnecessary invalidations as a result of calls
to setBounds() invoking invalidateSelf().

Bug: 26533725
Change-Id: I99e9c2dfe4ddfc833569e40e7268dcb03e931fc9
parent e41a6c8b

core/java/android/view/View.java

+4 −2
Original line number Diff line number Diff line
@@ -16937,8 +16937,10 @@ public class View implements Drawable.Callback, KeyEvent.Callback, 
     */

    @CallSuper

    protected boolean verifyDrawable(Drawable who) {

        return who == mBackground || (mScrollCache != null && mScrollCache.scrollBar == who)

                || (mForegroundInfo != null && mForegroundInfo.mDrawable == who);

        // Avoid verifying the scroll bar drawable so that we don't end up in

        // an invalidation loop. This effectively prevents the scroll bar

        // drawable from triggering invalidations and scheduling runnables.

        return who == mBackground || (mForegroundInfo != null && mForegroundInfo.mDrawable == who);

    }















    /**