objective-c - UINavigationController 不显示

Question

遇到这个问题，UInavigationController 没有显示.. 这是我的代码..

eSigHomeViewController *controller = [[eSigHomeViewController alloc] initWithNibName:@"eSigHomeViewController" bundle:[NSBundle mainBundle]];
self.navigationController = [[UINavigationController alloc] initWithRootViewController:controller];
self.navigationController.navigationBarHidden = YES;
self.navigationController.navigationBar.barStyle = UIBarStyleBlackOpaque;

self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

// Override point for customization after application launch.
[self.window addSubview:self.navigationController.view];
self.window.backgroundColor = [UIColor clearColor];
[self.window makeKeyAndVisible];

做，我错过了一些东西..希望你能提供一些帮助..

谢谢，

雀巢

Answer 1

self.navigationController.navigationBarHidden = YES;如果您想查看导航栏，请删除此行。

Answer 2

好像你不见了

self.window.rootViewController = self.navigationController;