i have an xcode project, and i have some unity project even developed for ipad, but i want to add in to my in xcode my prohect of unity, what i want to mean is that in to my app developed in xcode want to import a project that i cerate in unity is there a simple way to imported
There is no simple way for that. Actually most devs here will agree that there is no way for it.
What you normally want to do is take your native xcode application and rewrite it to life within its view controller and then show this viewcontroller as overlay whenever you want / need it through calls from unity.
Unity is not some rendering you can just hook up, its a fullscale application thats already completely compiled by unity before the xcode project is even created