I have a `UIViewController` class called `AppController.h`, `AppController.m`. I have thousands of lines of code in there, and that is the only reason why I didn't test this before I asked it. Is there any possible way to use `drawRect` in a `UIViewController`? that way I wouldn't have to make more delegates and methods and callbacks. I should have started off using `drawRect` to handle my drawing code, but I didn't, and there's severe lag with core graphics on the iPad. So, please let me know if there's any way to use `drawRect` in a `UIViewController`.

Thanks!