Is there any way to run a method or intent when a notification or message is received in background in android?

Question

I am working on an application on which i want to run a method when a message or notification is received from another device. Notification or method will be send from the sender device and method should run on the Receiver device. Please guide me . Thanks in advance

Answer 1

When the notification is received, You will be notified if you have used Notification Listener Service

@TargetApi(18)
public class NotificationsListenerService extends android.service.notification.NotificationListenerService {



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

    @Override
    public void onListenerConnected() {

        Log.d("NotificationListener", "listenerconnected");
    }


    @Override
    public void onNotificationPosted(StatusBarNotification sbn) {
      //here check notification and call method


    }

    @Override
    public void onNotificationRemoved(StatusBarNotification sbn) {
        Log.d("NotificationListener","removed "+ sbn.getPackageName() + " notification");
    }

To use this service , You need Notification Access

        String enabledNotificationListeners = Settings.Secure.getString(getContentResolver(), "enabled_notification_listeners");
        String packageName = getPackageName();
        if (enabledNotificationListeners == null || !enabledNotificationListeners.contains(packageName)) {
               startActivityForResult(new Intent("android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS"), 13);
               Toast.makeText(getApplicationContext(),"Turn on Notification Access for \"App\"",Toast.LENGTH_SHORT).show();

    } else {
        startService(this, NotificationsListenerService.class);
    }