Add APIs to remove tasks.

You can remove sub-tasks inside of a task, or an entire task.

When removing an entire task, you can have its process killed
as well.

When the process is killed, any running services will get an
onTaskRemoved() callback for them to do cleanup before their
process is killed (and the service possibly restarted).

Or they can set a new android:stopWithTask attribute to just
have the service automatically (cleanly) stopped at this point.

Change-Id: I1891bc2da006fa53b99c52f9040f1145650e6808

1 files changed, 4 insertions, 2 deletions

diff --git a/core/java/android/app/ApplicationThreadNative.java b/core/java/android/app/ApplicationThreadNative.java
index a82234ea8d1b..0e511f2892ac 100644
--- a/core/java/android/app/ApplicationThreadNative.java
+++ b/core/java/android/app/ApplicationThreadNative.java
@@ -219,6 +219,7 @@ public abstract class ApplicationThreadNative extends Binder
         {
             data.enforceInterface(IApplicationThread.descriptor);
             IBinder token = data.readStrongBinder();
+            boolean taskRemoved = data.readInt() != 0;
             int startId = data.readInt();
             int fl = data.readInt();
             Intent args;
@@ -227,7 +228,7 @@ public abstract class ApplicationThreadNative extends Binder
             } else {
                 args = null;
             }
-            scheduleServiceArgs(token, startId, fl, args);
+            scheduleServiceArgs(token, taskRemoved, startId, fl, args);
             return true;
         }
 
@@ -688,11 +689,12 @@ class ApplicationThreadProxy implements IApplicationThread {
         data.recycle();
     }
 
-    public final void scheduleServiceArgs(IBinder token, int startId,
+    public final void scheduleServiceArgs(IBinder token, boolean taskRemoved, int startId,
 	    int flags, Intent args) throws RemoteException {
         Parcel data = Parcel.obtain();
         data.writeInterfaceToken(IApplicationThread.descriptor);
         data.writeStrongBinder(token);
+        data.writeInt(taskRemoved ? 1 : 0);
         data.writeInt(startId);
         data.writeInt(flags);
         if (args != null) {