commit 2adba07d75419462873dfeef40d4c983d832ed99
author Jorim Jaggi <jjaggi@google.com> Thu Mar 03 13:43:39 2016 +0100
committer Jorim Jaggi <jjaggi@google.com> Fri Mar 25 14:23:41 2016 -0700
tree bd50515e6ddb80ffecb38172717e49747078e2b8
parent c39c7b0ce2b80fbadfd58245c106cc513b83eac2

Show a scrim activity if task is not resizable

Add a callback to TaskStackChangeListener which gets fired when the system
might need to inform the user that a specific app might not work in
multi-window.

Use that callback in SysUI to show a translucent activity which scrims the
activity behind to inform that it might not be resizable.

Debounce the information to once per multi-window session, to not make it
annoying.

Introduce launchTaskId to start an activity in an existing task, and protect
that with START_TASKS_FROM_RECENTS permission.

Bug: 27327287
Bug: 27431869
Change-Id: I89e8d653872ab01ba3c1e252b426e5481da0e6ca

services/core/java/com/android/server/policy/StatusBarController.java

diff --git a/services/core/java/com/android/server/policy/StatusBarController.java b/services/core/java/com/android/server/policy/StatusBarController.java
index 9d353c6..86d0468 100644
--- a/services/core/java/com/android/server/policy/StatusBarController.java
+++ b/services/core/java/com/android/server/policy/StatusBarController.java
@@ -29,6 +29,8 @@
 import android.view.animation.TranslateAnimation;
 
 import com.android.internal.statusbar.IStatusBarService;
+import com.android.server.LocalServices;
+import com.android.server.statusbar.StatusBarManagerInternal;
 
 import static android.view.WindowManagerInternal.*;
 
@@ -103,6 +105,20 @@
                 }
             });
         }
+
+        @Override
+        public void onAppTransitionFinishedLocked(IBinder token) {
+            mHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    StatusBarManagerInternal statusbar = LocalServices.getService(
+                            StatusBarManagerInternal.class);
+                    if (statusbar != null) {
+                        statusbar.appTransitionFinished();
+                    }
+                }
+            });
+        }
     };
 
     public StatusBarController() {