NSNotificationCenter postNotificationName example ios

postNotificationName :object:

Creates a notification with a given name and sender and posts it to the receiver.

- (void)postNotificationName:(NSString *)notificationName object:(id)notificationSender

Parameters

notificationName

The name of the notification.

notificationSender

The object posting the notification.

Discussion of [NSNotificationCenter postNotificationName]

This method invokes postNotificationName :object:userInfo: with a userInfo argument of nil.

Example of [NSNotificationCenter postNotificationName]

[[NSNotificationCenter defaultCenter] postNotificationName:@"HotSpotTouched" object:self userInfo:itemDetails ];


- (void)hotSpotMore:(NSNotification *)notification {
      NSLog(@"%@", notification.userInfo);
      NSLog(@"%@", [notification.userInfo objectForKey:@"HelpTopic"]);    
}