Add a new notification when push notification is received (not replace the previous)

Question

I am using push notifications in my app. I need to display a notification when a push notification delivered. If I send another notification (without clearing the previous notification), it will replace the old notification.

This is the code I use:

NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

int icon = R.drawable.ic_launcher;
CharSequence tickerText = "New notification Pending";
long time = System.currentTimeMillis();

Notification notification = new Notification(icon, tickerText, time);
notification.flags = Notification.DEFAULT_LIGHTS | Notification.FLAG_AUTO_CANCEL;

// Context context = getApplicationContext();
CharSequence contentTitle = "Notifications";
CharSequence contentText = newMessage;
Intent notificationIntent = new Intent(this, LoginActivity.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
        notificationIntent, 0);
notification.setLatestEventInfo(context, contentTitle, contentText,
        contentIntent);
mNotificationManager.notify(1, notification);

But I don't want to replace the notification, I want to add it as a new notification.

Answer 1

You can also use System.currentTimeMillis() to assign unique id to your notification.

int id = (int) System.currentTimeMillis();
mNotificationManager.notify(id, notification);

Answer 2

You need to supply a different ID as the notification ID each time. The best approach would be to send an ID field to GCM which can be then accessed via Intent.getExtras().getInt() in your GCMIntentService's onMessage() method.

If this is not possible, I'd suggest using something like (int)Math.random()*10 to generate a random integer number as your notification ID. This will (partially) ensure that your notifications will not replace each other.