title: "Unfortunately, Launcher has stopped" on Android Nexus 6 emulator
body: <p>When testing my 2D game on the Nexus 6 emulator, the app launches and works fine the first time.  But when I close out of the app and try to reopen it, I get a "Unfortunately, Launcher has stopped" and the emulator crashes.  This only happens on the Nexus 6 emulator, on other older AVDs the app reopens fine.  Nothing shows up in Logcat when this happens.  </p>
  
  <p>I was wondering if anyone knew why this happens and only on the Nexus 6 emulator.  I have suspected the following culprits but I am not sure:</p>
  
  <ol>
  <li><p>Out of memory - I do not release any of the bitmap resources used in the game, should I be doing this and if so, should it be from the <code>surfaceDestroyed()</code> method?</p></li>
  <li><p>A threading issue - perhaps the thread is not being properly shut down or restarted?</p></li>
  </ol>
  
  <p>Any help would be appreciated!</p>