title: Airplay from iPad - a separate UIView to display on Apple TV
body: <p>I want to use Airplay to send images in high definition to a Apple TV.</p>
  
  <p>Airplay works fine on my iPad 2 with iOS 5.0.1.</p>
  
  <p>When I start my app, my <code>UIScreen</code> screens array only has 1 item in it. (the iPad of course). I register for the notification for more screens, it never comes unless i bring up the multitasking bar and select my Apple TV. I don't want to do this.</p>
  
  <p>I want an in app pop over where I can select the Apple TV or any other airplay device in the list.</p>
  
  <p>I used <code>MPVolumeView</code>, which did give me that list - and did let me select the Apple TV - but I stil don't get the call back notification that the Apple TV has been selected - so that I can setup my <code>UIWindow</code> for the new view! (but the multitask bar does confirm that the Apple TV is now ticked and the icon from <code>MPVolumeView</code> does go blue too).</p>
  
  <p>I've tried the externalDisplay sample app too, and this too only shows one screen in the list of <code>UIScreens</code> when the app starts.</p>
  
  <p>What am I missing?</p>
  
  <p>Thanks</p>