Add Media Playing API

These methods permit an activity to play or continue playing media
behind a translucent activity above it. Particularly the home
activity in Android TV. Methods exist to notify the upper activity
when playing starts or stops and for notifying the playing activity
when to stop playing and release its resources.

Methods are called when either activity's state changes or new
activities are launched.

Fixes bug 14469711.

Change-Id: I7ba10c5a4683504931cffa228488f5281e5bbf86

1 files changed, 38 insertions, 0 deletions

diff --git a/core/java/android/app/ApplicationThreadNative.java b/core/java/android/app/ApplicationThreadNative.java
index 6dead08d2a8b..0b4510fe4c7e 100644
--- a/core/java/android/app/ApplicationThreadNative.java
+++ b/core/java/android/app/ApplicationThreadNative.java
@@ -647,6 +647,25 @@ public abstract class ApplicationThreadNative extends Binder
             reply.writeNoException();
             return true;
         }
+
+        case STOP_MEDIA_PLAYING_TRANSACTION:
+        {
+            data.enforceInterface(IApplicationThread.descriptor);
+            IBinder token = data.readStrongBinder();
+            scheduleStopMediaPlaying(token);
+            reply.writeNoException();
+            return true;
+        }
+
+        case BACKGROUND_MEDIA_PLAYING_CHANGED_TRANSACTION:
+        {
+            data.enforceInterface(IApplicationThread.descriptor);
+            IBinder token = data.readStrongBinder();
+            boolean enabled = data.readInt() > 0;
+            scheduleBackgroundMediaPlayingChanged(token, enabled);
+            reply.writeNoException();
+            return true;
+        }
         }
 
         return super.onTransact(code, data, reply, flags);
@@ -1304,4 +1323,23 @@ class ApplicationThreadProxy implements IApplicationThread {
         mRemote.transact(UPDATE_TIME_PREFS_TRANSACTION, data, null, IBinder.FLAG_ONEWAY);
         data.recycle();
     }
+
+    @Override
+    public void scheduleStopMediaPlaying(IBinder token) throws RemoteException {
+        Parcel data = Parcel.obtain();
+        data.writeInterfaceToken(IApplicationThread.descriptor);
+        data.writeStrongBinder(token);
+        mRemote.transact(STOP_MEDIA_PLAYING_TRANSACTION, data, null, IBinder.FLAG_ONEWAY);
+        data.recycle();
+    }
+
+    @Override
+    public void scheduleBackgroundMediaPlayingChanged(IBinder token, boolean enabled) throws RemoteException {
+        Parcel data = Parcel.obtain();
+        data.writeInterfaceToken(IApplicationThread.descriptor);
+        data.writeStrongBinder(token);
+        data.writeInt(enabled ? 1 : 0);
+        mRemote.transact(BACKGROUND_MEDIA_PLAYING_CHANGED_TRANSACTION, data, null, IBinder.FLAG_ONEWAY);
+        data.recycle();
+    }
 }