iPhone：如何关闭MFMailComposeViewController？ [英] iPhone: How to Close MFMailComposeViewController?

问题描述

关闭我提出的电子邮件，我遇到困难。

电子邮件打开很好，但一旦打开它将不会像mailComposeController那样关闭：mailer didFinishWithResult：result error：错误处理程序永远不会被调用。

据我所知，我已经掌握了一切可以做到的一切。

任何人有什么想法可以看看？

这是我如何提高电子邮件：

   - （IBAction）emailButtonPressed 
 {
  

NSString * text = @我的电子邮件文本;

  MFMailComposeViewController * mailer = [[MFMailComposeViewController alloc] init]; 
 mailer.delegate = self; 
 
 [mailer setSubject：@Note]; 
 [mailer setMessageBody：text isHTML：NO]; 
 [self presentModalViewController：mailer animated：YES]; 
 [邮件发布]; 
} 
  

后来在类中我有这个代码来处理关闭（但它永远不会被调用）：

   - （void）mailComposeController :( MFMailComposeViewController *）mailer didFinishWithResult：（MFMailComposeResult）结果错误：（NSError *）error 
 {
 [self becomeFirstResponder]; 
 [mailer dismissModalViewControllerAnimated：YES]; 
} 
  

我的头文件定义为：

  #import< UIKit / UIKit.h> 
 #import< MessageUI / MessageUI.h> 
 #import< MessageUI / MFMailComposeViewController.h> 
 
 @interface myViewController：UIViewController< UIActionSheetDelegate，UIAlertViewDelegate，MFMailComposeViewControllerDelegate，UINavigationControllerDelegate> 
  

谢谢

Iphaaw

解决方案

您正在设置委托错误， MFMailComposeViewController 中的委托属性称为mailComposeDelegate，所以应该是：

  mailer.mailComposeDelegate = self; 
  

我可以看到的另一个可能的错误是调用 dismissModalViewControllerAnimated： on mailer - 您应该将此消息发送给呈现邮件界面的视图控制器 - self 在这种情况下：

  [self dismissModalViewControllerAnimated：YES]; 
  

我写了可能的错误，因为如果iOS通过响应者链路由消息，实际上可能会起作用，无论如何 - 文件说应该发送给演示者。

I'm having difficulties closing an email message that I have raised.

The email opens nicely, but once it is opened it will not close as the mailComposeController:mailer didFinishWithResult:result error:error handler never gets invoked.

As far as I can tell I have all the bits in place to be able to do this.

Anyone any ideas of what I can look at?

Here is how I raise the email:

-(IBAction)emailButtonPressed 
{

NSString *text = @"My Email Text";

 MFMailComposeViewController *mailer = [[MFMailComposeViewController alloc] init];
 mailer.delegate = self;

 [mailer setSubject:@"Note"];
 [mailer setMessageBody:text isHTML:NO];
 [self presentModalViewController:mailer animated:YES];
 [mailer release];
}

and later in the class I have this code to handle the close (but it never gets called):

-(void)mailComposeController:(MFMailComposeViewController *)mailer didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
{
 [self becomeFirstResponder];
 [mailer dismissModalViewControllerAnimated:YES];
}

My header file is defined as:

#import <UIKit/UIKit.h>
#import <MessageUI/MessageUI.h>
#import <MessageUI/MFMailComposeViewController.h>

@interface myViewController : UIViewController <UIActionSheetDelegate, UIAlertViewDelegate, MFMailComposeViewControllerDelegate, UINavigationControllerDelegate>

Thanks

Iphaaw

解决方案

You are setting the delegate wrong, the delegate property in MFMailComposeViewController is called mailComposeDelegate, so it should be:

mailer.mailComposeDelegate = self;

Another possible error I can see is calling dismissModalViewControllerAnimated: on mailer - you should send this message to the view controller who presented the mail interface - self in this case:

[self dismissModalViewControllerAnimated:YES];

I wrote "possible error" because it might actually work if iOS routes the message through responder chain, anyway - the documentation says it should be send to presenter.

这篇关于iPhone：如何关闭MFMailComposeViewController？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！