在 Swift 2.0 中使用 MFMailComposeViewController

Question

在我的应用程序中，我需要实现（发送邮件）功能。 我使用 MFMailComposeViewController 来实现这个功能。 但是我遇到了一个奇怪的问题，当 MFMailComposeViewController 无法发送邮件时，会出现一个奇怪的弹出窗口，如下所示：

我的代码是：

let mailComposerVC = MFMailComposeViewController()

        mailComposerVC.mailComposeDelegate = self

        mailComposerVC.setToRecipients(["in**@******.***"])

        mailComposerVC.setSubject(getEmailSubject())

        let message = "Name: \(self.nameTextField.text!) \n Email: \(self.emailTextField.text!) \n Phone: \(self.phoneTextField.text!) \n \(self.messageTextView.text!)"

        print(message)

        mailComposerVC.setMessageBody(message, isHTML: false)

        if MFMailComposeViewController.canSendMail() {

            self.presentViewController(mailComposerVC, animated: true, completion: nil)

        } else {

            self.showSendMailErrorAlert()

        }

有人遇到过这个问题吗？ 请帮忙。

谢谢

Answer 1

通过模拟器使用MFMailComposeViewController 可能会失败。 最佳做法是在真实设备上进行检查。

我正在附加我的一个项目的工作代码。

 func shareMail()
    {
        let mailClass:AnyClass?=NSClassFromString("MFMailComposeViewController")
        if(mailClass != nil)
        {
            if((mailClass?.canSendMail()) != nil)
            {
                displayComposerSheet()
            }
            else
            {
                launchMailAppOnDevice()
            }
        }
        else
        {
            launchMailAppOnDevice()
        }
    }
    func launchMailAppOnDevice()
    {
        let recipients:NSString="";
        let body:NSString = "hey"
        var email:NSString="\(recipients) \(body)"
        email=email.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!
        UIApplication.sharedApplication().openURL(NSURL(string: email as String)!)
    }
    func displayComposerSheet()
    {
        let picker: MFMailComposeViewController=MFMailComposeViewController()
        picker.mailComposeDelegate=self;
        picker .setSubject("Check out this photo I've edited with PICCELL! ")
        picker.setMessageBody(bodyFor, isHTML: true)
        let data: NSData = UIImagePNGRepresentation(sendImage)!

        picker.addAttachmentData(data, mimeType: "image/png", fileName: "images.png")

        self.presentViewController(picker, animated: true, completion: nil)
    }
    func mailComposeController(controller:MFMailComposeViewController, didFinishWithResult result:MFMailComposeResult, error:NSError?)
    {
        if result == MFMailComposeResultSent
        {
           animateFinished(btn_email)
        }

        self.dismissViewControllerAnimated(true, completion: nil)
    }

别忘了添加代表：

UINavigationControllerDelegate,MFMessageComposeViewControllerDelegate, MFMailComposeViewControllerDelegate