From 1d05b726240d57d49753a2420701642757297dee Mon Sep 17 00:00:00 2001
From: Kevin Han <kevhan@google.com>
Date: Tue, 19 May 2020 15:29:14 -0700
Subject: [PATCH] Add animateAlpha to add/remove animations

Adding/removing notifications may push other group children beyond the
edge of the group container which should have an alpha effect applied as
it clips out.  So we add animateAlpha to add/remove to keep this
animation.

Bug: 150717795
Test: manual, post group, add notification, watch child clip out
animation

Change-Id: Id7e354934f1df86470114277b954f42ad09df562
---
 .../notification/stack/NotificationStackScrollLayout.java       | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
index 3db4b6f7ffbb7..e33cc6027c4f3 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
@@ -5983,6 +5983,7 @@ public class NotificationStackScrollLayout extends ViewGroup implements ScrollAd
 
                 // ANIMATION_TYPE_ADD
                 new AnimationFilter()
+                        .animateAlpha()
                         .animateHeight()
                         .animateTopInset()
                         .animateY()
@@ -5991,6 +5992,7 @@ public class NotificationStackScrollLayout extends ViewGroup implements ScrollAd
 
                 // ANIMATION_TYPE_REMOVE
                 new AnimationFilter()
+                        .animateAlpha()
                         .animateHeight()
                         .animateTopInset()
                         .animateY()