Swift 3 How to display a confirmation screen based on MFMailComposeResult email screen

Question

I\'m building an app that constructs an email and presents it in a MFMailComposeViewController for the user to send. When the user sends or cancels it I want the app to res

Answer 1

If you want to present an alert before the controller is dismissed? Try this one:

func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {


    switch result {
    case .cancelled:

        let alertController = UIAlertController.init(title: "Cancelled", message: "Some message", preferredStyle: .alert)
        alertController.addAction(UIAlertAction.init(title: "Ok", style: .default, handler: { (alertAction) in
            controller.dismiss(animated: true, completion: nil)
        }))
        controller.present(alertController, animated: true, completion: nil)

    case .sent:

        let alertController = UIAlertController.init(title: "Sent", message: "Some message", preferredStyle: .alert)
        alertController.addAction(UIAlertAction.init(title: "Ok", style: .default, handler: { (alertAction) in
            controller.dismiss(animated: true, completion: nil)
        }))
        controller.present(alertController, animated: true, completion: nil)

    default:
        break;
    }
}