NotificationListener.requestInterruptionFilter sample

Question

I have been searching for a sample or tutorial to change the Interruptions in Lollipop. But I didn't find any complete one. I saw ideas or hints but not a complete one. With those ideas I have created a NotificationListener which is executed but I get this error:

java.lang.ClassCastException: android.service.notification.NotificationListenerService$INotificationListenerWrapper cannot be cast to My.App.MyNotificationListenerService

My Manifest:

    <service android:name=".MyNotificationListenerService"
          android:label="Some text here"
          android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE">
          <intent-filter>
             <action android:name="android.service.notification.NotificationListenerService" />
          </intent-filter>
      </service>  

My MyNotificationListenerService class:

public class MyNotificationListenerService extends NotificationListenerService
{  
   @Override public void onCreate() 
   {  super.onCreate();       
   }


   @Override public void onDestroy() 
   {  super.onDestroy();      
   }


   @Override public IBinder onBind(Intent intent) 
   {  return super.onBind(intent);
   }       

}

My activity:

Intent serviceIntent = new Intent(MyActivity.this, MyNotificationListenerService.class);
MyServiceConnection oMyServiceConnection = new MyServiceConnection();
bindService(serviceIntent, oMyServiceConnection, Context.BIND_AUTO_CREATE);
//Now we wait onconnect


class MyServiceConnection implements ServiceConnection 
{  @Override public void onServiceConnected(ComponentName name, IBinder binder) 
   {  MyNotificationListenerService oMyNotificationListenerService= ((MyNotificationListenerService ) binder).getService(); <-- here is where I get the ClassCastException

      int iFilter = NotificationListenerService.INTERRUPTION_FILTER_PRIORITY; //Or INTERRUPTION_FILTER_ALL or INTERRUPTION_FILTER_NONE
      oMyNotificationListenerService.requestInterruptionFilter(iFilter);              

   }

   @Override  public void onServiceDisconnected(ComponentName name) 
   {  
   }
}

Answer 1

As seen in the source of NotificationListenerService, NotificationListenerService already implements onBind() and is how the NotificationListenerService communicates with the system.

By overriding onBind() to return your own interface, none of the methods that communicate with the system will work - you should see verbose level log messages along the lines of "Unable to contact notification manager".

You can use other methods for communicating with your service such as LocalBroadcastManager.