title: iphone - Detecting what type of simulator
body: <p>how can I detect whether I'm using iphone simulator or ipad simulator.
  I'm using some 3rd party library to which I've to pass a parameter whether i'm using ipad or iphone. in order to test the app, i want to programatically detect whether i'm using iphone simulator or ipad simulator. is there any way to identify it?</p>