如何添加UIViewController？

Question

I have a GLES game, it has no standard UI elements. It is based on the code from GLSprite which contains a UIView and an AppDelegate (full source code on github https://github.com/acekiller/iOS-Samples/tree/master/GLSprite/Classes )

The problem I have is I want to add GameCenter functionality and need to open the matchmaking views, but they require I pass a UIViewController to them, of which I have none!

Can I add a UIViewController to my current game (which I would really love to do as I have modified the GLSprite source somewhat and don't want to mess around with getting new code working) and how do I add it?

Thank you for your help.

Answer 1

Simply add this to the end of applicationDidFinishLaunching

UIViewController *vc = [[UIViewController alloc] init];
vc.view = glView;
self.window.rootViewController = vc;
[window makeKeyAndVisible];