iOS:MFMailComposeViewController 未关闭

Question

我正在使用 MFMailComposeViewController在我的应用程序中撰写反馈电子邮件。 MFMailComposeViewController显示，但无法关闭。

用于打开MFMailComposeViewController的方法模态窗口:

-(IBAction) feedbackBtnClicked:(id)sender {

    // Dismiss the Old View Controller
    [self dismissViewControllerAnimated:NO completion:NULL];

    // Present the New View Controller
    if ([MFMailComposeViewController canSendMail])
    {
        MFMailComposeViewController *mail = [[MFMailComposeViewController alloc] init];
        mail.mailComposeDelegate = self;
        [mail setSubject:@"Sample Subject"];
        [mail setMessageBody:@"Here is some main text in the email!" isHTML:NO];
        [mail setToRecipients:@[@"example@mail.com"]];

        [self presentViewController:mail animated:YES completion:NULL];
    }
    else
    {
        NSLog(@"This device cannot send email");
    }
}

这是单击按钮时发生的情况:

发送(发送) - 电子邮件已发送，但模式窗口保持打开状态；多次单击该按钮会导致发送多封电子邮件而不会关闭模式窗口。
Abbrechen (取消) - 没发生什么事

如何解雇确保 MFMailComposeViewController单击这些按钮后被解雇？

Answer 1

您需要执行 MFMailComposeViewControllerDelegate方法mailComposeController:didFinishWithResult:error: , 并关闭邮件 View Controller …

- (void)messageComposeViewController:(MFMessageComposeViewController *)controller
                 didFinishWithResult:(MessageComposeResult)result
{
  [self dismissViewControllerAnimated:YES completion:NULL];
}