我有一个应用程序，允许用户从他们的 iPhone 发送测试电子邮件。我的应用程序调用一个方法来激活撰写邮件功能，如下所示:
-(void)displayComposerSheet
{
//set up a way to cancel the email here
//picker is an instance of MSMailComposeViewController already declared in the .h file
[picker setSubject:@"Test Mail"];
// Set up recipients
// Attach an image to the email
NSString *path = [[NSBundle mainBundle] pathForResource:@"Icon" ofType:@"png"];
NSData *myData = [NSData dataWithContentsOfFile:path];
[picker addAttachmentData:myData mimeType:@"image/png" fileName:@"Icon"];
// Fill out the email body text
NSString *emailBody = @"This is a test mail.";
[picker setMessageBody:emailBody isHTML:NO];
[self presentModalViewController:picker animated:YES];
NSLog(@"mail is working");
}
- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error
{
emailLabel.hidden = NO;
// Notifies users about errors associated with the interface
switch (result)
{
case MFMailComposeResultCancelled:
emailLabel.text = @"Mail sending canceled.";
break;
case MFMailComposeResultSaved:
emailLabel.text = @"Mail saved.";
break;
case MFMailComposeResultSent:
{
emailLabel.text = @"Mail sent.";
NSLog(@"It's away!");
UIAlertView *emailAlertView = [[UIAlertView alloc] initWithTitle:@"Sent!" message:@"Mail sent successfully." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
[emailAlertView show];
[self dismissModalViewControllerAnimated:YES];
[self.navigationController popViewControllerAnimated:YES];
}
break;
case MFMailComposeResultFailed:
{
emailLabel.text = @"Mail sending failed.";
}
break;
default:
{
emailLabel.text = @"Mail not sent.";
}
break;
}
}
我的问题是，当撰写电子邮件功能处于事件状态时，我无法退出此功能并返回到我的应用程序。解决这个问题的唯一方法是实际继续发送消息。导航栏的左上角出现一个默认的“取消”栏按钮，单击该按钮后，会出现三个选项:“删除草稿”、“保存草稿”和“取消”。如果我选择“删除草稿”，除了返回撰写消息屏幕之外，它不会执行任何操作。有没有办法让用户在启动撰写邮件功能后但在发送之前返回应用程序？有没有办法向“取消”栏按钮添加额外的功能来实现此目的？
提前感谢所有回复的人。
最佳答案
您必须实现MFMessageComposeViewControllerDelegate与 - (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result方法。
您将在此方法中关闭消息 View 。
编辑:我对 MFMailComposeViewControllerDelegate 感到困惑但目的与 MFMessageComposeViewControllerDelegate 相同
关于ios - 需要帮助关闭 iOS 中的电子邮件编辑器屏幕，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/14263690/