set class for UINavigationController

Question

Как установить класс (первый класс) для UINavigationController из кода?

Answer 1

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 

    window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 
    LoginViewController* loginViewctrl = [[LoginViewController alloc] init]; 
    navigationController = [[UINavigationController alloc] initWithRootViewController:loginViewctrl]; 
    UIWindow* window addSubview:[navigationController view]]; 
    [loginViewctrl release]; 
    [window makeKeyAndVisible]; 
}