Android: Manage multiple push notification in device of an app

Question

I am developing an application in which i implemented Push notification functionality. My code of onMessage - GCMIntentService.java is:

@Override
protected void onMessage(Context context, Intent data) {
    String message = data.getExtras().getString("message");

    displayMessage(context, message);
    generateNotification(context, message);
}

And code of generateNotification -

private static void generateNotification(Context context, String message) {
    int icon = R.drawable.ic_launcher;
    long when = System.currentTimeMillis();
    NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
    Notification notification = new Notification(icon, message, when);

    String title = context.getString(R.string.app_name);

    Intent notificationIntent = new Intent(context, GCMMessageView.class);

    notificationIntent.putExtra("message", message);
    // set intent so it does not start a new activity
    notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
    PendingIntent intent = PendingIntent.getActivity(context, 0,notificationIntent, 0);

    notification.setLatestEventInfo(context, title, message, intent);
    notification.flags |= Notification.FLAG_AUTO_CANCEL;

    // Play default notification sound
    notification.defaults |= Notification.DEFAULT_SOUND;

    // Vibrate if vibrate is enabled
    notification.defaults |= Notification.DEFAULT_VIBRATE;
    notificationManager.notify(0, notification);
}

This code is working fine. I am getting push message and notification.

=>But when i send more then one message the notification gets over write. And i am able to see only last notification in status bar.

The need of application is that - if i send more then one notification then all should be display in status bar.

So please guide me what should i do for that in my code.

Answer 1

Try to put different notification id (i.e. nid) in intent and notify instead of 0 for each new notification this will prevent over writing your notification

  PendingIntent intent = PendingIntent.getActivity(context, nid,notificationIntent, 0);

and

notificationManager.notify(nid, notification);

Hope this will help you

Answer 2

Get random numbers:

Random random = new Random();
int m = random.nextInt(9999 - 1000) + 1000;

Instead of:

notificationManager.notify(0, notification);

use:

notificationManager.notify(m, notification);