...[[UIApplicationsharedApplication]setStatusBarHidden:YES];self.viewController=[[ViewControlleralloc]initWithNibName:@"ViewController"bundle:nil];self.window.rootViewController=self.viewController;[windowmakeKeyAndVisible];...这是我的应用程序委托(delegate)中的代码，它正在加载一个ViewController(或RootViewController)。此