dismissViewControllerAnimated在iOS 7中不起作用？

Question

點擊時，我有一個單元格顯示密碼更改視圖控制器。

else if (indexPath.row == 2) { 
       //Change passcode 
       NSString *passcode = [[NSUserDefaults standardUserDefaults] stringForKey:@"passcode"]; 
       PAPasscodeViewController *passcodeViewController = [[PAPasscodeViewController alloc] initForAction:PasscodeActionChange]; 
       passcodeViewController.delegate = self; 
       passcodeViewController.passcode = passcode; 
       passcodeViewController.simple = YES; 
       [self presentViewController:passcodeViewController animated:YES completion:nil]; 
       break; 

      } 

委託回調方法駁回密碼更改視圖控制器時，命中取消：

- (void)PAPasscodeViewControllerDidCancel:(PAPasscodeViewController *)controller { 
    [self dismissViewControllerAnimated:YES completion:nil]; 
// [self.presentingViewController dismissViewControllerAnimated:YES completion:nil]; 
// [self.navigationController popViewControllerAnimated:YES]; 

} 

但是，它沒有關閉該密碼更改視圖控制器命中即使Xcode的調試擊中取消按鈕時碼。我試過[self.presentingViewController dismissViewControllerAnimated：YES completion：nil];它也沒有工作。 presentViewController屬性爲零。

它以前在iOS 6上完美工作。之前有人遇到過這個問題嗎？謝謝

Answer 1

你可以試試PAPasscodeViewController，而不是使用委託。

[self removeFromParentViewController];