Why does the iPhone load a black screen after the launch screens?

Question

I have been creating my first iOS app for iPhone (iOS 8) since last year (iOS 7).

My iPhone app launches perfectly, loads the launch images properly, and then loads up a black screen. You can see the status bar at the top as well. It stays on this screen. It should be loading my main selected UIViewController .

My main interface is set properly and my info.plist file seems look fine.

I am not using storyboards. I prefer to use NIBs (I am old school).

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{ // Override point for customization after application launch. 
sleep(1); 
return YES; 
} 

I do not hit viewDidLoad in my root UIViewController .

Answer 1

Your didFinishLaunchingWithOptions: method needs to create a UIWindow , instantiate a view controller, and set that as the root view controller for your window. Then you should call makeKeyAndVisible on the window.