弹出到项目的第一个视图控制器

Question

我有一个UINavigationController。我在上面加载了presentmodalviewcontroller。我在presentmodalviewcontroller 上再推 2 个视图控制器。如果我需要移动到我的第一个视图控制器，应该怎么做？

编辑：我还在堆栈顶部的UIViewController 上加载了一些UIView。我已成功删除它。

我试过了

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

但还是不行

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

好的。我明白了。

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

    [appDelegate.navigationController dismissModalViewControllerAnimated:YES];