How to pass userInfo in NSNotification?

Question

I am trying to send some data using NSNotification but get stuck. Here is my code:

// Posting Notification NSDictionary *orientationData; if(iFromInterfaceOrientation == UIInterfaceOrientationLandscapeRight) {     orientationData = [NSDictionary dictionaryWithObject:@"Right"                                                   forKey:@"Orientation"]; }  NSNotificationCenter *notificationCenter = [NSNotificationCenter defaultCenter]; [notificationCenter postNotificationName:@"Abhinav"                                   object:nil                                 userInfo:orientationData];  // Adding observer [[NSNotificationCenter defaultCenter] addObserver:self                                          selector:@selector(orientationChanged)                                              name:@"Abhinav"                                            object:nil]; 

Now how to fetch this userInfo dictionary in my selector orientationChanged?

Answer 1

You get an NSNotification object passed to your function. This includes the name, object and user info that you provided to the NSNotificationCenter.

- (void)orientationChanged:(NSNotification *)notification {     NSDictionary *dict = [notification userInfo]; }