Handling user acting on UILocalNotification

Question

My goal is to open a specific screen when user clicks on a UILocalNotification from the iOS Notification Center.

Now if the app is being resumed from the background when user acts on the Notification, I notice didReceiveLocalNotification is called:

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification

Now I can get the userInfo dictionary from the UILocalNotification object and opens the proper screen.

Unfortunately, this same method is called also when my app publishes a UILocationNotification while the app is running in the foreground:

[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

How would I distinguish between the 2 cases?

Answer 1

It passes to you the application object that contains the state in its .applicationState property.

Consequently, you can make sure it is not active by testing...

if (application.applicationState != UIApplicationStateActive){
 // do your stuff
}

And that's it!