如何用GLKit中的OpenGL视图替换OpenGL ES 1.1 EAGLLayer视图？

I have a simple game which uses EAGLLayer directly. I had to set up the runloop and all OpenGL ES boilerplate. Game sometimes crashes because of OpenGL backgrounding problems. I heard the GLKit has a robust boilerplate OpenGL view which takes care of OpenGL initialize and suspension.I have a simple game which uses EAGLLayer direc