iOS开发返回指定控制器

MainTarBarController这个改为要返回的控制器

UIViewController * presentingViewController = self.presentingViewController;
    
    do {
        if ([presentingViewController isKindOfClass:[MainTarBarController class]]) {
            break;
        }
        presentingViewController = presentingViewController.presentingViewController;

    } while (presentingViewController.presentingViewController);
    
    [presentingViewController dismissViewControllerAnimated:YES completion:nil];