On iOS, how can my app get the notification data that it received while the phone was in the background?

Question

Is there a way in AppDelegate to get a queue of all the notification data? (Once the user opens the app).

Answer 1

For UILocalNotification, you can get received notifications by calling following function in your AppDelegate:

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
UIApplicationState state = [application applicationState];
    if (state == UIApplicationStateInactive) {
    // Application was in the background when notification was delivered.
    } 
}

If you want to find the list of local Notifications, that app has already set, check this solution.