NSNotificationCenter in C & Swift

NSNotificationCenter in C & Swift

For Objective C :-

Send(Post) Notification:

[[NSNotificationCenter defaultCenter] postNotificationName:@"Restorepayment" object:self];

Remove Notification:

 [[NSNotificationCenter defaultCenter] removeObserver:self name:@"Restorepayment" object:nil];

Receive(Get) Notification:

 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(check:) name:@"Restorepayment" object:nil];

Method handler for received Notification :-

-(void)check:(NSNotification *)notification

{

    if ([[notification name] isEqualToString:@"Restorepayment"])

    {

        // Your Coding

    }

}

For Swift :-

Send(Post) Notification:

NotificationCenter.default.post(name: NSNotification.Name(rawValue: "NotificationIdentifier"), object: nil)

Remove Notification:

NotificationCenter.default.removeObserver(self, name: NSNotification.Name(rawValue: "NotificationIdentifier"), object: nil)

NotificationCenter.default.removeObserver(self) // Remove from all notifications being observed

        

Receive(Get) Notification:

NotificationCenter.default.addObserver(self, selector: #selector(self.methodOfReceivedNotification(notification:)), name: Notification.Name("NotificationIdentifier"), object: nil)

Method handler for received Notification :-

func methodOfReceivedNotification(notification: Notification){

        //Take Action on Notification

        

  

        print("Notification Method Call")

    }