title: iOS - Stopping a Video on Navigation Change
body: <p>So here is my dilemma, I have a navigation controller that controls three views. The first view has audio on it, the second view image sequences/videos and the third view will have audio.</p>
  
  <p>How can I make sure that all of those things are ended (or just end them) when someone clicks the "Back" button to go to a lower numbered view?</p>