popToViewController，它不会给我任何崩溃，但是，不打开controllview和动画，所以代码不起作用

Question

UINavigationController *loginNavCon = [[UINavigationController alloc] init];
loginNavCon.navigationController.navigationBarHidden=YES;
loginNavCon.navigationBar.barStyle = UIBarStyleBlack;

//I created navigationcontroller hear

PushMe *p=[[PushMe alloc]initWithNibName:@"PushMe" bundle:[NSBundle mainBundle]];

//这是一个简单的ControllView。只有颜色视图

[loginNavCon pushViewController:p animated:YES];
NSArray *currentViewControllers = [loginNavCon viewControllers];
NSMutableArray *vcs =  [NSMutableArray arrayWithArray:currentViewControllers];

[loginNavCon setViewControllers:vcs animated:NO];
[loginNavCon popViewControllerAnimated:YES];
[loginNavCon popToViewController:p animated:YES];

Answer 1

设置根目录：

  

initWithRootViewController：（UIViewController *）rootViewController

如果您弹出，它将返回此VC。