From ec4e780e5c3ffacabe2e41dfbf40636744666859 Mon Sep 17 00:00:00 2001
From: Danny Baumann <dannybaumann@web.de>
Date: Sun, 22 Jun 2014 16:55:36 +0200
Subject: [PATCH] Fix frontOfTask assignment.

If all activities of a given stack were finishing, no activity was
marked as front-of-task. This confused ActivityManager, so make sure
there's always exactly one activity marked as front-of-task.

Change-Id: I087cbe10280d4a60aa5ccfaefe24a223523fb3f2
---
 services/java/com/android/server/am/TaskRecord.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/services/java/com/android/server/am/TaskRecord.java b/services/java/com/android/server/am/TaskRecord.java
index 9105103ac6325..9c4b7d14ec262 100644
--- a/services/java/com/android/server/am/TaskRecord.java
+++ b/services/java/com/android/server/am/TaskRecord.java
@@ -173,6 +173,11 @@ final class TaskRecord extends ThumbnailHolder {
                 foundFront = true;
             }
         }
+        if (!foundFront && numActivities > 0) {
+            // All activities of this task are finishing. As we ought to have a frontOfTask
+            // activity, make the bottom activity front.
+            mActivities.get(0).frontOfTask = true;
+        }
     }
 
     /**