小编Göz*_*Bal的帖子

我尝试通过我的应用发送电子邮件，但收到一个错误消息

“请设置邮件帐户以发送电子邮件”。

我的代码块在下面。

import MessageUI

@IBAction func emailTapped(_ sender: Any) {   

    let mailComposerVC = MFMailComposeViewController()
    mailComposerVC.mailComposeDelegate = self
    mailComposerVC.setToRecipients(["abc@gmail.com"])
    mailComposerVC.setSubject("Sending you an in-app e-mail...")
    mailComposerVC.setMessageBody("Sending e-mail in-app is not so bad!", isHTML: false)

    if MFMailComposeViewController.canSendMail() {
        self.present(mailComposerVC, animated: true, completion: {() -> Void in })
    }  
}

func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Swift.Error?){
    controller.dismiss(animated: true) { () -> Void in } 
}