更新到Swift 2.0時的代碼問題。 「無法轉換價值..」

Question

我已經更新了Swift到2.0，並自動轉換了代碼，但我看到了一些我仍然想修復的錯誤。

其中之一就是：「不能轉換類型，期望的參數類型「[字符串]的‘[AnyObject]’值

該VC創建發起一封郵件屏幕，以幫助用戶聯繫到？ 。我

錯誤是在FUNC lanzarEmail以下行：

mailController .setToRecipients（收件人）

代碼：

import UIKit 
import MessageUI 

class tuPropiaHistoriaVC: UIViewController,MFMailComposeViewControllerDelegate { 

var alert: UIAlertView? 
var subjectText:String? 
var destinatario:AnyObject! 
var mailController:MFMailComposeViewController? 

@IBOutlet weak var scrollView: UIScrollView! 

override func viewDidLoad() { 
    super.viewDidLoad() 

    //Recipients 
    subjectText = "Mi historia de éxito/superación." 
    destinatario = "1234@hotmail.es" 

    // Do any additional setup after loading the view. 
} 

override func didReceiveMemoryWarning() { 
    super.didReceiveMemoryWarning() 
    // Dispose of any resources that can be recreated. 
} 


@IBAction func lanzarEmail(sender: AnyObject) { 

    if(MFMailComposeViewController.canSendMail()){ 


     //AlertView 
     alert = UIAlertView() 
     alert!.addButtonWithTitle("Ok") 

     mailController = MFMailComposeViewController() 
     //asignar delegado al controlador de email 
     mailController?.mailComposeDelegate = self 




     //Completar objeto mailController 

     mailController?.setSubject(subjectText!) 

     var recipients = [destinatario] 

     mailController?.setToRecipients(recipients) 
     self.presentViewController(mailController!, animated: true, completion: nil) 

    }else 
    { 
     let sendMailErrorAlert = UIAlertView(title: "No se puede enviar Email", message: "Por favor configura tu app Mail para poder enviar correos", delegate: self, cancelButtonTitle: "Entendido") 
     sendMailErrorAlert.show() 
     self.dismissViewControllerAnimated(false, completion: nil) 

    } 






} 


func mailComposeController(controller: MFMailComposeViewController, didFinishWithResult result: MFMailComposeResult, error: NSError?) { 


    switch result.rawValue { 

    case MFMailComposeResultCancelled.rawValue: 
     //se cancelo envio 
     alert!.title = "Envio cancelado" 
     alert!.message = "Se canceló el envio" 
     alert!.show() 

    case MFMailComposeResultSaved.rawValue: 
     //se guardo draft 
     alert!.title = "Correo guardado" 
     alert!.message = "Se guardó el correo en la app de Mail" 
     alert!.show() 

    case MFMailComposeResultFailed.rawValue: 
     //fallo el envio 
     alert!.title = "Error" 
     alert!.message = "El correo no pudo ser enviado" 
     alert!.show() 

    case MFMailComposeResultSent.rawValue: 
     //el mail se pudo enviar y esta en la pila de envio 
     alert!.title = "Correo enviado" 
     alert!.message = "El correo se envió exitosamente" 
     alert!.show() 

    default: 
     break 


    } 


    mailController?.dismissViewControllerAnimated(true, 

     //Clousure a ejecutar al finalizar de mostrar la vista 

     completion: {() -> Void in 


      //Cerrar pantalla del view base, requiere que la conexion entre pantallas sea del tipo seague 
      self.dismissViewControllerAnimated(true, completion: nil) 



    }) 



} 



} 

Answer 1

嘗試換行var destinatario: AnyObject!至var destinatario: String!。如果它是恆定值，則爲let destinatario = "1234@hotmail.es"。

mailController的方法setToReceipents簽名看起來像func setToRecipients(recipients: [String])（實際上，這是屬性var recipients: [String]）。但你傳遞AnyObject，這不是陣列String