android - Is it possible to check if a notification is visible or canceled?

Question

I would like to update notification data, but the only way I found is to launch a new one with the same Id.

The problem is that I don't want to raise a new one if the original has beed canceled. Is there a way to tell if a notification is visible or canceled? Or a way to update a notification only if it exists?

Answer 1

If you're app has a minimum API >= 23 can use this method to get active notification:

NotificationManager mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
StatusBarNotification[] notifications = mNotificationManager.getActiveNotifications();
for (StatusBarNotification notification : notifications) {
  if (notification.getId() == 100) {
    // Do something.
  }
}