title: Detecting if UIView is intersecting other UIViews
body: <p>I have a bunch of UIViews on the screen. I would like to know what's the best to way to check if a particular view (which I have reference to) is intersection ANY other views. The way I am doing it right now is, iterating though all the subviews and check one by one if there's an intersection between the frames. </p>
  
  <p>This doesn't seem very efficient. Is there a better way to do this?</p>