I have a strange behavior with an NSNotification object. My app has an navigation controller, first view is a table view and the second view is just a view controller which shows data of the select...

In trying to de-couple my model from the view controllers that display fetched data, when an asynchronous fetch completes, I post an NSNotification. [[NSNotificationCenter defaultCenter] postNoti...

My question is in regards the object that gets added to a -postNotificationName:object: userInfo: method. Does the NSNotification retain the object ? (in a similar fashion to NSMutableDictionary...

I've a class called AppController.h/m I want to make something when the NSNotificationDidResignActiveNotification is sent. So i wrote this code in AppController.m: -(void) initialize(){ [[NSNotif...

Should it be possible to have a static NSNotification observer (like the code below)? I'm having some problems, and I think it may be due to my singleton class structure. I don't always have a cla...

In my iPad app, in one class I register for a notification: NSNotificationCenter *nc = [NSNotificationCenter defaultCenter]; [nc addObserver:self selector:@selector(selectedList:) name:@"TTSelect...

I need to create two classes and both should be able to send and receive the events through the NSNotificationCenter methods.ie Both should have the sendEvent and receiveEvent methods: @implement...