弹出到第一个查看项目的控制器

Question

我有UINavigationController。我加载了presentmodalviewcontroller。我在presentmodalviewcontroller上推出了2个以上的视图控制器。如果我需要移动到我的第一个视图控制器，应该做什么？

编辑：我还在我的堆栈顶部的UIView上加载了一些UIViewController。我已经成功删除了它。

我试过了

 [self.navigationController popToRootViewControllerAnimated:YES];
 [self.navigationController dismissModalViewControllerAnimated:YES];  
 [self.navigationController popToViewController:[self.navigationController.viewControllers   objectAtIndex:0] animated:YES]; 

但仍无效

这就是我添加每个视图控制器的方式

第一个视图控制器

 FirstViewController *firstViewController = 
 [[[FirstViewController alloc] initWithNibName:@"FirstViewController" bundle:nil] autorelease];

 UINavigationController *navcontrol =[[UINavigationController alloc]initWithRootViewController:firstViewController];
 [self presentModalViewController:navcontrol animated:YES];
 [navcontrol release];

第二个视图控制器

SecondViewController *secondViewController = [[SecondViewController alloc]init] ;
[self.navigationController pushViewController: secondViewController animated:YES];
        [secondViewController release];

第三个视图控制器

ThirdViewController *thirdViewController = [[ThirdViewController alloc] init];
[self.navigationController pushViewController: thirdViewController animated:YES];
[thirdViewController release];

Answer 1

确定。我懂了。

    myAppDelegate *appDelegate = (myAppDelegate*)[UIApplication sharedApplication].delegate;

    [appDelegate.navigationController dismissModalViewControllerAnimated:YES];