During our development, we want to make minimum changes in cocos2d’s internal code or the code generated by it (to keep it easier to move to newer cocos2dx versions without having to merge any such changes).
In the generated iOS code, RootViewController viewController is not public in AppController.h
A reference to thisviewController is needed in other classes if app wants to show any iOS popup controls on top of the cocos2d scene (for example a iOS message box or the share to facebook/twitter control for screnshot etc).
It will be great if in the generated code, we can have RootViewController *viewController in AppController.h public by default (in obj-c that would likely mean making it a property).