PopularMediaViewController

Instantiate and add your UIViewController subclass to the view hierarchy:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    
    // Override point for customization after application launch.
    
    PopularMediaViewController *vc = [[PopularMediaViewController alloc] initWithNibName:@"PopularMediaViewController" bundle:nil];
    // UINavigationController *nc = [[UINavigationController alloc] initWithRootViewController:vc];
    [self.window setRootViewController:nc];
    
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    return YES;
}

A blank UIViewController subclass:

@interface PopularMediaViewController ()

@end

@implementation PopularMediaViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

UINavigationController Class Reference