starting ios project without storyboard

Question

Im having some troubles to start an iOS app using xibs instead of storyboard. The problem is that im getting a black screen and the first view controller is not being called

Answer 1

I didnt try with XIB, but this thing is working fine here:::

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.viewController = [[ViewController alloc] init];
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:self.viewController];
    navController.navigationBarHidden = YES;

    self.window.rootViewController = navController;
    [self.window makeKeyAndVisible];
    // Override point for customization after application launch.
    return YES;
}

and in ViewController's viewDidLoad

- (void)viewDidLoad {
    [super viewDidLoad];
    [self.view setBackgroundColor:[UIColor greenColor]];
    // Do any additional setup after loading the view, typically from a nib.
}

And the green color comes on the screen.

Initialize the window before setting the root view controller for the window.

That's the only problem that i see in you code, as the rootViewController is set to a nil window, and after that you are initializing.