iphone - 没有为 MFMailComposeViewController 调用 didFinishWithResult

Question

在按键回调中：

 MFMailComposeViewController *mailViewController = [[MFMailComposeViewController alloc] init];
    mailViewController.mailComposeDelegate = self;

    [self presentModalViewController:mailViewController animated:YES];

委托实施：

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {
NSLog (@" Inside  MAIL COMPOSER CONTROLLER DELIGATE ");


// Remove the mail view
[self dismissModalViewControllerAnimated:YES];
}

当我在 MailComposerView 中按下取消按钮时，不会调用删除。我究竟做错了什么 ？

Answer 1

1. 将您的 viewController 设置为 MFMailComposeViewControllerDelegate：

   @interface CurrentViewController : UIViewController <MFMailComposeViewControllerDelegate>
   

2. 在实例化后立即设置您的 mailComposer 委托：

   MFMailComposeViewController * mailComposer = [[MFMailComposeViewController alloc]init];
   mailComposer.mailComposeDelegate = self;
   

Answer 2

你真的让你的班级成为 MFMailComposeViewControllerDelegate 吗？

@interface MyViewController : UIViewController <MFMailComposeViewControllerDelegate>