如何从Cocos2D返回UIkit？

After much pain, tears and pulling out of hair I have finally managed to merge my UIKit (ARC enabled) app with my Cocos2D game project. Basically, I have a UIKit app that has (amongst other things) a button to play the Cocos2D game. The button calls an action which sets up the director, eaglview and scenes, etc and the game works as it should.After much pain, tears and pulling out of hair