From 12a6782d61dbefd5ba0bb286372936f957849637 Mon Sep 17 00:00:00 2001
From: Jorim Jaggi <jjaggi@google.com>
Date: Fri, 5 Sep 2014 16:01:00 +0200
Subject: [PATCH] Don't update notification layer when collapsing the panel

This change makes sure that we don't update the hardware for the
notification layer when we collapse or expand the panel. It does so
by starting the fading when the panel is more collapsed.

Bug: 17287256
Change-Id: I35dc35494d71d816b7e6c5821b769847aaa183b0
---
 .../android/systemui/statusbar/phone/NotificationPanelView.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
index f467e27b6fb4b..cf5aebc9780ae 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
@@ -1278,7 +1278,7 @@ public class NotificationPanelView extends PanelView implements
     private void updateNotificationTranslucency() {
         float alpha = (getNotificationsTopY() + mNotificationStackScroller.getItemHeight())
                 / (mQsMinExpansionHeight + mNotificationStackScroller.getBottomStackPeekSize()
-                        + mNotificationStackScroller.getCollapseSecondCardPadding());
+                        - mNotificationStackScroller.getCollapseSecondCardPadding());
         alpha = Math.max(0, Math.min(alpha, 1));
         alpha = (float) Math.pow(alpha, 0.75);
         if (alpha != 1f && mNotificationStackScroller.getLayerType() != LAYER_TYPE_HARDWARE) {