MFMailComposeViewController不从视图中取消 [英] MFMailComposeViewController Not Dismissing From View

问题描述

我有以下代码，当调用操作表上的按钮时调用。但是当我按取消，然后删除草稿，它只是冻结，不会关闭。我使用相同的代码在我的应用程序的其他地方，并从一个选择的tableview单元格，它的工作找到那里。任何想法为什么它不工作这里？

Ther在控制台冻结时也没有错误msg。

  if（[MFMailComposeViewController canSendMail]）
 {
 MFMailComposeViewController * picker = [[MFMailComposeViewController alloc] init]; 
 picker.mailComposeDelegate = self; 
 
 [picker setSubject：@Dr。Chrono Support]; 
 
 NSDictionary * infoDict = [[NSBundle mainBundle] infoDictionary]; 
 NSString * versionNum = [infoDict objectForKey：@CFBundleVersion]; 
 NSString * appName = [infoDict objectForKey：@CFBundleDisplayName]; 
 NSString * text = [NSString stringWithFormat：@％@％@，appName，versionNum]; 
 
 //设置收件人
 NSArray * toRecipients = [NSArray arrayWithObject：@[e-mail]]; 
 // NSArray * ccRecipients = [NSArray arrayWithObjects：@[e-mail]，@[e-mail]，nil]; 
 // NSArray * bccRecipients = [NSArray arrayWithObject：@[e-mail]]; 
 
 [picker setToRecipients：toRecipients]; 
 // [picker setCcRecipients：ccRecipients]; 
 // [picker setBccRecipients：bccRecipients]; 
 
 //将图像附加到电子邮件
 // NSString * path = [[NSBundle mainBundle] pathForResource：@rainyofType：@png]; 
 // NSData * myData = [NSData dataWithContentsOfFile：path]; 
 // [picker addAttachmentData：myData mimeType：@image / pngfileName：@rainy]; 
 
 //填写电子邮件正文文本
 NSString * emailBody = text; 
 [picker setMessageBody：emailBody isHTML：NO]; 
 
 [self presentModalViewController：picker animated：YES]; 
 [picker release]; 
} 
  

解决方案

方法：

   - （void）mailComposeController：（MFMailComposeViewController *）controller didFinishWithResult：（MFMailComposeResult）result error：（NSError *）error然后在这个委托方法中添加：
 pre>  [self dismissModalViewControllerAnimated：YES]; 
  

它应该工作正常。

您不必查找结果（仅当您想要显示谢谢警报或某些事情时，例如，如果用户确实命中发送）

I have the following code that is called when a button on an action sheet is called. But when I press cancel, then delete draft, it just feezes and does not dismiss. I use the same code elsewhere in my app and its called from a select of a tableview cell and it works find there. Any ideas why it isn't working here?

Ther is also no error msg in the console when it freezes.

if([MFMailComposeViewController canSendMail])
{
    MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
    picker.mailComposeDelegate = self;

    [picker setSubject:@"Dr. Chrono Support"];

    NSDictionary* infoDict = [[NSBundle mainBundle] infoDictionary];
    NSString* versionNum = [infoDict objectForKey:@"CFBundleVersion"];
    NSString *appName = [infoDict objectForKey:@"CFBundleDisplayName"];
    NSString *text = [NSString stringWithFormat:@"%@ %@",appName,versionNum];

    // Set up recipients
    NSArray *toRecipients = [NSArray arrayWithObject:@"[e-mail]"]; 
    //NSArray *ccRecipients = [NSArray arrayWithObjects:@"[e-mail]", @"[e-mail]", nil]; 
    //NSArray *bccRecipients = [NSArray arrayWithObject:@"[e-mail]"]; 

    [picker setToRecipients:toRecipients];
    //[picker setCcRecipients:ccRecipients];  
    //[picker setBccRecipients:bccRecipients];

    // Attach an image to the email
    //NSString *path = [[NSBundle mainBundle] pathForResource:@"rainy" ofType:@"png"];
    //NSData *myData = [NSData dataWithContentsOfFile:path];
    //[picker addAttachmentData:myData mimeType:@"image/png" fileName:@"rainy"];

    // Fill out the email body text
    NSString *emailBody = text;
    [picker setMessageBody:emailBody isHTML:NO];

    [self presentModalViewController:picker animated:YES];
    [picker release];
}

解决方案

You need to implement the delegate method:

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {

Then in this delegate method add:

[self dismissModalViewControllerAnimated:YES];

and it should be working just fine.

You don't have to look for the result (only if you want to display a "Thank you" alert or something, for example, if the user did indeed hit Send)

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