UIActivityViewController驳回MailViewController

Question

我已经尝试过通过UIActivityViewController发送电子邮件，它工作得很好，但邮件视图在电子邮件发送后并未关闭。当用户按下Cancel按钮时，它也不会取消。

我能做些什么来解决这个问题？

//conf share view
    NSString *textToShare = @"Teststring!";
    UIImage *imageToShare = fetchedImage;
    NSURL *urlToShare = [NSURL URLWithString:string_url];
    NSArray *activityItems = [[NSArray alloc]  initWithObjects:textToShare, imageToShare,urlToShare,nil];

    UIActivity *activity = [[UIActivity alloc] init];

    NSArray *applicationActivities = [[NSArray alloc] initWithObjects:activity, nil];
    UIActivityViewController *activityVC =
    [[UIActivityViewController alloc] initWithActivityItems:activityItems
                                      applicationActivities:applicationActivities];

    activityVC.excludedActivityTypes = @[UIActivityTypeAssignToContact,
        UIActivityTypePostToWeibo,
        UIActivityTypeCopyToPasteboard,
        UIActivityTypeSaveToCameraRoll,
        UIActivityTypePrint];

    [activityVC setCompletionHandler:^(NSString *activityType, BOOL completed) {
        NSLog(@"CompletionHandler was called!");
    }];

谢谢!

Answer 1

我有解决方案。你想在你的基础中展示UIActivityViewController，也就是你的最高或最后一个视图控制器。在我的例子中，这是可行的：

[[[self parentViewController] parentViewController] presentViewController:activityViewController animated:YES completion:nil];

试试看，在访问最高视图控制器之前，您必须调用parentViewController多少次。在我的简单的MasterView/DetailView应用程序中，我不得不调用它两次。

Answer 2

无论成功与否，它总是在发布完成后出现在完成处理程序中

[activityViewController setCompletionHandler:^(NSString *activityType, BOOL completed)
 {
            if (completed)
     {
         UIAlertView *objalert = [[UIAlertView alloc]initWithTitle:@"Alert" message:@"Posting was successful" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
         [objalert show];
         objalert = nil;
     }else
     {
         UIAlertView *objalert = [[UIAlertView alloc]initWithTitle:@"Alert" message:@"Posting was not successful" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
         [objalert show];
         objalert = nil;
     }
 }];

Answer 3

然后试着在completitionHandler上忽略它

[activityVC setCompletionHandler:^(NSString *activityType, BOOL completed) {
       //Dismiss here 
    }];