邮件撰写视图控制器不会从UIAlertController打开

我想从UIAlertController按下按钮后拉起邮件撰写视图控制器。在模拟器中，当我尝试打开邮件时，我收到了正常的崩溃和错误消息，但在应用程序中，我什么都没有收到。没有控制器，没有崩溃，没有。这是代码。邮件撰写视图控制器不会从UIAlertController打开

[actionSheet addAction:[UIAlertAction actionWithTitle:@"Email" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) { 

     [self emailThem]; 

     [self dismissViewControllerAnimated:YES completion:^{ 
     }]; 
    }]]; 

-(void) emailThem { 
    NSLog(@"EMAIL"); 
    MFMailComposeViewController *mail = [[MFMailComposeViewController alloc] init]; 
    mail.mailComposeDelegate = self; 
    [mail setSubject:@"To P3 Media"]; 
    [mail setMessageBody:@"Replace this text with your message for all the information you would like on P3 Media." isHTML:NO]; 
    [mail setToRecipients:@[@"[email protected]"]]; 

    [self presentViewController:mail animated:YES completion:NULL]; 
}

什么问题？

来源

2016-07-28 user717452

尝试把“[自我emailThem]”完成处理的内部驳回视图控制器之后。还要确保方法emailThem下的presentViewController正在用户界面线程上运行。 –

@SeanMcDonald好吧，我试过'[self dismissViewControllerAnimated：YES完成：^ {0} {0} {0} {self emailThem; }];但仍然是同样的事情。 – user717452

你有在设备上设置的电子邮件帐户吗？ –

试试这个代码

[actionSheet addAction:[UIAlertAction actionWithTitle:@"Email" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) { 

    [self emailThem]; 

    [self dismissViewControllerAnimated:YES completion:^{ 
    }]; 
}]]; 

-(void) emailThem { 
    NSLog(@"EMAIL"); 
    MFMailComposeViewController *mail = [[MFMailComposeViewController alloc] init]; 
    mail.mailComposeDelegate = self; 
    [mail setSubject:@"To P3 Media"]; 
    [mail setMessageBody:@"Replace this text with your message for all the information you would like on P3 Media." isHTML:NO]; 
    [mail setToRecipients:@[@"[email protected]"]]; 
    dispatch_async(dispatch_get_main_queue(),^{ 
     [self presentViewController:mail animated:YES completion:NULL]; 
    }); 
}

来源

2016-07-28 04:54:41 PinkeshGjr

邮件撰写视图控制器不会从UIAlertController打开

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