From aa4f5c95c372f54f6c2c89fdea0ececfd05f474a Mon Sep 17 00:00:00 2001
From: Adam Powell <adamp@google.com>
Date: Tue, 11 Oct 2011 15:34:54 -0700
Subject: [PATCH] Fix bug 5434403 - invalidation problem with seek bars at
 edges

Explicitly invalidate the seek bar thumb area when we change drawable
states for touch down. This prevents the thumb from only being
half-invalidated at the edges since it extends into the view's padding
region.

Change-Id: Icc4e608aca044b2d05f3a9378eced839c03947e6
---
 core/java/android/widget/AbsSeekBar.java | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/core/java/android/widget/AbsSeekBar.java b/core/java/android/widget/AbsSeekBar.java
index df8eb053845d4..475b8eeaf0289 100644
--- a/core/java/android/widget/AbsSeekBar.java
+++ b/core/java/android/widget/AbsSeekBar.java
@@ -335,6 +335,7 @@ public abstract class AbsSeekBar extends ProgressBar {
                     mTouchDownX = event.getX();
                 } else {
                     setPressed(true);
+                    invalidate(mThumb.getBounds()); // This may be within the padding region
                     onStartTrackingTouch();
                     trackTouchEvent(event);
                     attemptClaimDrag();
@@ -348,6 +349,7 @@ public abstract class AbsSeekBar extends ProgressBar {
                     final float x = event.getX();
                     if (Math.abs(x - mTouchDownX) > mScaledTouchSlop) {
                         setPressed(true);
+                        invalidate(mThumb.getBounds()); // This may be within the padding region
                         onStartTrackingTouch();
                         trackTouchEvent(event);
                         attemptClaimDrag();