NSNotification postNotificationName in AppDelegate but NSNotificationCenter in ViewController?

Question

I can\'t get the selector method, receiveChatText, in the NSNotificationCenter to execute and I am wondering if the problem is because the NSNotification postNotificationNam

Answer 1

+defaultCenter is a class method on NSNotificationCenter which will return the same NSNotificationCenter instance every time it is called in a given process regardless of where you call it from.

How is 'ChatMessageReceived' defined? It should be a NSString but is the name 'ChatMessageReceived' a valid symbol in the context of both of your classes?