This is a sample code i am using to test the blog.
@IBAction private func onAdd(sender: AnyObject) { let coordinate = mapView.centerCoordinate let radius = (radiusTextField.text! as NSString).doubleValue let identifier = NSUUID().UUIDString let note = noteTextField.text let eventType = (eventTypeSegmentedControl.selectedSegmentIndex == 0) ? EventType.OnEntry : EventType.OnExit delegate!.addGeotificationViewController(self, didAddCoordinate: coordinate, radius: radius, identifier: identifier, note: note!, eventType: eventType)}