Extend NotificationListenerService to support system use cases.

Bug: 14846846
Change-Id: Ic308b2f78c86393304d446c57fd677294e01717c

diff --git a/core/java/android/service/notification/NotificationListenerService.java b/core/java/android/service/notification/NotificationListenerService.java
index a94f45a..e2e9ff4 100644 (file)
--- a/core/java/android/service/notification/NotificationListenerService.java
+++ b/core/java/android/service/notification/NotificationListenerService.java
@@ -16,9 +16,11 @@
 
 package android.service.notification;
 
+import android.annotation.PrivateApi;
 import android.annotation.SdkConstant;
 import android.app.INotificationManager;
 import android.app.Service;
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.os.IBinder;
@@ -26,9 +28,6 @@ import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.util.Log;
 
-import java.util.Comparator;
-import java.util.HashMap;
-
 /**
  * A service that receives calls from the system when new notifications are posted or removed.
  * <p>To extend this class, you must declare the service in your manifest file with
@@ -53,6 +52,9 @@ public abstract class NotificationListenerService extends Service {
 
     private INotificationManager mNoMan;
 
+    /** Only valid after a successful call to (@link registerAsService}. */
+    private int mCurrentUser;
+
     /**
      * The {@link Intent} that must be declared as handled by the service.
      */
@@ -267,6 +269,42 @@ public abstract class NotificationListenerService extends Service {
         return true;
     }
 
+    /**
+     * Directly register this service with the Notification Manager.
+     *
+     * <p>Only system services may use this call. It will fail for non-system callers.
+     * Apps should ask the user to add their listener in Settings.
+     *
+     * @param componentName the component that will consume the notification information
+     * @param currentUser the user to use as the stream filter
+     * @hide
+     */
+    @PrivateApi
+    public void registerAsSystemService(ComponentName componentName, int currentUser)
+            throws RemoteException {
+        if (mWrapper == null) {
+            mWrapper = new INotificationListenerWrapper();
+        }
+        INotificationManager noMan = getNotificationInterface();
+        noMan.registerListener(mWrapper, componentName, currentUser);
+        mCurrentUser = currentUser;
+    }
+
+    /**
+     * Directly unregister this service from the Notification Manager.
+     *
+     * <P>This method will fail for listeners that were not registered
+     * with (@link registerAsService).
+     * @hide
+     */
+    @PrivateApi
+    public void unregisterAsSystemService() throws RemoteException {
+        if (mWrapper != null) {
+            INotificationManager noMan = getNotificationInterface();
+            noMan.unregisterListener(mWrapper, mCurrentUser);
+        }
+    }
+
     private class INotificationListenerWrapper extends INotificationListener.Stub {
         @Override
         public void onNotificationPosted(StatusBarNotification sbn,