MFMailComposeViewController 不会关闭 (iOS10)

Question

希望你一切都好。

我对 Swift 很陌生。我使用 iOS10 SDK 在 XCode 8.0 上构建了一个 iOS 应用程序。我正在尝试添加允许用户向预先配置的电子邮件地址发送电子邮件的功能。当点击发送按钮时，MFMailComposeViewController 正常打开，用户可以通过他们添加的邮件帐户发送或取消。单击发送实际上发送电子邮件正常，但 MFMailComposeViewController 不会在发送电子邮件后或单击取消按钮时关闭。请帮忙！

谢谢

import UIKit
import MessageUI

class EmailHelpdesk_ViewController: UIViewController, MFMailComposeViewControllerDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()

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

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

    //Email Subject and Body text fields.
    @IBOutlet var helpdesk_email_subject: UITextField!
    @IBOutlet var helpdesk_email_body: UITextView!

    //Helpdesk (Submit Button - Config)
    @IBAction func helpdesk_email_send(_ sender: AnyObject) {
        let HDsubjectText = helpdesk_email_subject.text
        let HDbodyText = helpdesk_email_body.text

        MFMailComposeViewController to be called.
        let mail_controller_compose = MFMailComposeViewController()
        mail_controller_compose.mailComposeDelegate = self

       mail_controller_compose.setToRecipients(["example@example.com"])
        mail_controller_compose.setSubject(HDsubjectText!)
        mail_controller_compose.setMessageBody(HDbodyText!, isHTML: false)


        self.present(mail_controller_compose, animated: true, completion: nil)
    }

    func mailComposeController(controller: MFMailComposeViewController,
         didFinishWithResult result:MFMailComposeResult, error: NSError?) {
         controller.dismiss(animated: true, completion: nil)

      }
    }
}

Answer 1

用这个替换你的完整代码。

import UIKit
import MessageUI

class EmailHelpdesk_ViewController: UIViewController, MFMailComposeViewControllerDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()

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

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

    //Email Subject and Body text fields.
    @IBOutlet var helpdesk_email_subject: UITextField!
    @IBOutlet var helpdesk_email_body: UITextView!

    var mail_controller_compose:MFMailComposeViewController!

    //Helpdesk (Submit Button - Config)
    @IBAction func helpdesk_email_send(_ sender: AnyObject) {
        let HDsubjectText = helpdesk_email_subject.text
        let HDbodyText = helpdesk_email_body.text

        //MFMailComposeViewController to be called.
        mail_controller_compose = MFMailComposeViewController()
        mail_controller_compose.mailComposeDelegate = self

       mail_controller_compose.setToRecipients(["example@example.com"])
        mail_controller_compose.setSubject(HDsubjectText!)
        mail_controller_compose.setMessageBody(HDbodyText!, isHTML: false)


        self.present(mail_controller_compose, animated: true, completion: nil)
    }

    func mailComposeController(controller: MFMailComposeViewController,
        didFinishWithResult result:MFMailComposeResult, error: NSError?)     {
         mail_controller_compose.dismiss(animated: true, completion: nil)
    }
}

试一次。

MFMailComposeViewController 不会关闭 (iOS10)

MFMailComposeViewController won't close (iOS10)

email

xcode

ios

swift

mfmailcomposeviewcontroller