Reset slider animator on density change

Change-Id: Iae7d32746c6ea2cabe7d0d58ff11a05d1722fce4
Fixes: 28626591
diff --git a/packages/SystemUI/src/com/android/systemui/volume/VolumeDialog.java b/packages/SystemUI/src/com/android/systemui/volume/VolumeDialog.java
index 65b93c7..f2cd885 100644
--- a/packages/SystemUI/src/com/android/systemui/volume/VolumeDialog.java
+++ b/packages/SystemUI/src/com/android/systemui/volume/VolumeDialog.java
@@ -396,6 +396,7 @@
         mSpTexts.add(row.header);
         row.slider = (SeekBar) row.view.findViewById(R.id.volume_row_slider);
         row.slider.setOnSeekBarChangeListener(new VolumeSeekBarChangeListener(row));
+        row.anim = null;
 
         // forward events above the slider into the slider
         row.view.setOnTouchListener(new OnTouchListener() {