在MFMessageComposeViewController中點擊取消后沒有任何反應

Question

雖然在使用MFMailComposeViewController ，移動到MFMessageComposeViewController是直接的，但有一個問題。

假設這段代碼：

MFMessageComposeViewController* mySMS = [[MFMessageComposeViewController alloc] init];
[mySMS setDelegate:self];
[self presentModalViewController:mySMS animated:YES];

它以這種方式用於郵件，但在短信中你應該將委托設置為不同的內部結構，如下所示：

[SMS setMessageComposeDelegate:self];

希望你不要像今天早些時候那樣陷入困境。

Answer 1

您需要實現委托方法-(void)mailComposeController(MFMailComposeViewController*)controller didFinishWithResult (MFMailComposeResult)result error:(NSError*)error:

在它里面你應該自己解雇它：

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

Answer 2

您可以在Apple文檔中看到MFMailComposeResult

  enum MFMailComposeResult {
    MFMailComposeResultCancelled,
    MFMailComposeResultSaved,
    MFMailComposeResultSent,
    MFMailComposeResultFailed
 };
 typedef enum MFMailComposeResult MFMailComposeResult; 

你必須在委托方法中自己解雇控制器

 - (void) mailComposeController:(MFMailComposeViewController *)controller          didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
 {
  switch (result){
    case MFMailComposeResultCancelled:
        NSLog(@"Mail cancelled");
        break;
    case MFMailComposeResultSaved:
        NSLog(@"Mail saved");
        break;
    case MFMailComposeResultSent:
        NSLog(@"Mail sent");
        break;
    case MFMailComposeResultFailed:
        NSLog(@"Mail sent failure: %@", [error localizedDescription]);
        break;
    default:
        break;
   }
// Close the Mail Interface
   [self dismissViewControllerAnimated:YES completion:NULL];
}