How to add cocoa framework to my in iphone application

Thanks in advance .

How to add Cocoa framework into my iphone application.If i include also it is giving an error . Because I have downloaded an iphone app. It has imported

#ifdef __OBJC__
    #import <Cocoa/Cocoa.h>
#endif 

like this. If i try to execute it is giving an error .I have downloaded app from http://www.macresearch.org/tutorial-intro-core-animation in th开发者_StackOverflow社区at side heading "Let's Animate..."

If any one know please help me.

The app you've downloaded is a Mac app, not an iPhone app. You won't be able to run it on the iPhone.