From e52f8091263c00656fd0d4fda215dff2169160a2 Mon Sep 17 00:00:00 2001
From: Robert Carr <racarr@google.com>
Date: Wed, 3 Jun 2020 15:37:32 -0700
Subject: VirtualDisplayTaskEmbedder: Post background color change callback

Otherwise we will end up calling SurfaceView#setResizeBackgroundColor
from a Binder thread and potentially cause a crash. This mirrors the
behavior of TaskOrganizerTaskEmbedder.

Bug: 157605189
Test: Existing tests pass
Change-Id: Iafe9e4c3eb4d32a52a6a1479aa9a2b295cd4ad6f
---
 core/java/android/window/VirtualDisplayTaskEmbedder.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'core/java/android/window/VirtualDisplayTaskEmbedder.java')

diff --git a/core/java/android/window/VirtualDisplayTaskEmbedder.java b/core/java/android/window/VirtualDisplayTaskEmbedder.java
index d2614da31ff9..9ccb4c172158 100644
--- a/core/java/android/window/VirtualDisplayTaskEmbedder.java
+++ b/core/java/android/window/VirtualDisplayTaskEmbedder.java
@@ -365,8 +365,8 @@ public class VirtualDisplayTaskEmbedder extends TaskEmbedder {
             // Found the topmost stack on target display. Now check if the topmost task's
             // description changed.
             if (taskInfo.taskId == stackInfo.taskIds[stackInfo.taskIds.length - 1]) {
-                mHost.onTaskBackgroundColorChanged(VirtualDisplayTaskEmbedder.this,
-                        taskInfo.taskDescription.getBackgroundColor());
+                mHost.post(()-> mHost.onTaskBackgroundColorChanged(VirtualDisplayTaskEmbedder.this,
+                        taskInfo.taskDescription.getBackgroundColor()));
             }
         }
 
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