From 73590c7751b9185137de962ba9ad9ff5a6e11e5d Mon Sep 17 00:00:00 2001
From: lucychang <lucychang@google.com>
Date: Mon, 1 Feb 2021 15:14:20 +0800
Subject: [PATCH] Clear data after calling ViewGroup#buildOrderedChildList

It needs to clear the reference views after calling
ViewGroup#buildOrderedChildList to prevent memory leak.

Bug: 178029590
Test: manually test
Change-Id: I770c8deab00496f9361ab30837a31f44c7367a46
---
 core/java/android/view/View.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 5c0e15639491d..10431f4d99f71 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -10364,6 +10364,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
                         for (int i = 0; i < childDrawIndex; i++) {
                             drawingOrderInParent += numViewsForAccessibility(preorderedList.get(i));
                         }
+                        preorderedList.clear();
                     } else {
                         final int childIndex = parentGroup.indexOfChild(viewAtDrawingLevel);
                         final boolean customOrder = parentGroup.isChildrenDrawingOrderEnabled();