Antialiasing of the rendered view

[davischung]

I have difficulties in trying to incorporate the method stated in the below webpage.

https://developer.apple.com/library/ios/documentation/3DDrawing/Conceptual/OpenGLES_ProgrammingGuide/WorkingwithEAGLContexts/WorkingwithEAGLContexts.html#//apple_ref/doc/uid/TP40008793-CH103-SW12

I have tried for a period of time but in vain. Could you instruct or show me how to add the antialiasing function to the current library? Thank you very much!!