xcode 6 beta 4: MessageComposeResult no es convertible a OptionalNilComparisonType
Acabo de actualizar de Xcode 6 Beta 3 a Beta 4. En 3 mi aplicación se estaba compilando perfectamente, sin embargo, en 4 tengo el siguiente error. ¿Alguien puede explicar y proporcionar una solución por favor?
func messageComposeViewController(sendMsg: MFMessageComposeViewController, didFinishWithResult result: MessageComposeResult) {
switch result {
case MessageComposeResultSent : //Error: MessageComposeResult is not convertible to _OptionalNilComparisonType
label2.text = "Msg Sent"
case MessageComposeResultCancelled : //Error: MessageComposeResult is not convertible to _OptionalNilComparisonType
label2.text = "Msg Send Cancelled"
case MessageComposeResultFailed : //Error: MessageComposeResult is not convertible to _OptionalNilComparisonType
label2.text = "Msg Send Failed"
default:
label2.text = "Msg Error"
}
self.dismissViewControllerAnimated(true, completion: nil)
self.reloadInputViews()
}