From 0cb538bbd00f5edb8ed736f9b5131c56ff7919c0 Mon Sep 17 00:00:00 2001
From: Yanting Yang <yantingyang@google.com>
Date: Tue, 5 Mar 2019 19:38:16 +0800
Subject: [PATCH] Animate the expansion/collapse of a slice

Fixes: 123950127
Test: visual
Change-Id: If78bace71b166c484c8f4c358f1007bd2f6ffc89
---
 res/layout/homepage_slice_tile.xml                              | 1 +
 .../contextualcards/slices/SliceFullCardRendererHelper.java     | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/res/layout/homepage_slice_tile.xml b/res/layout/homepage_slice_tile.xml
index 807c26bd7c4..e95129e6041 100644
--- a/res/layout/homepage_slice_tile.xml
+++ b/res/layout/homepage_slice_tile.xml
@@ -31,6 +31,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_gravity="center_vertical"
+            android:animateLayoutChanges="true"
             style="@style/SliceViewStyle"/>
 
         <!--dismissal view-->
diff --git a/src/com/android/settings/homepage/contextualcards/slices/SliceFullCardRendererHelper.java b/src/com/android/settings/homepage/contextualcards/slices/SliceFullCardRendererHelper.java
index ef0a67d0e20..ee635365a81 100644
--- a/src/com/android/settings/homepage/contextualcards/slices/SliceFullCardRendererHelper.java
+++ b/src/com/android/settings/homepage/contextualcards/slices/SliceFullCardRendererHelper.java
@@ -16,6 +16,7 @@
 
 package com.android.settings.homepage.contextualcards.slices;
 
+import android.animation.LayoutTransition;
 import android.content.Context;
 import android.view.View;
 
@@ -94,6 +95,7 @@ class SliceFullCardRendererHelper implements SliceView.OnSliceActionListener {
         public SliceViewHolder(View view) {
             super(view);
             sliceView = view.findViewById(R.id.slice_view);
+            sliceView.getLayoutTransition().enableTransitionType(LayoutTransition.CHANGING);
         }
     }
 }