title: AVAudioplayer doesn't play in background
body: <p>This is <strong><em>NOT</em></strong> duplicate question I had searched every where but unfortunate I hadn't found any solution.</p>
  
  <p>My problem I want to play a music file when app is in background, it should start playing when any local notification is called.</p>
  
  <p>I have a function where I am checking app is exist in background and then I have written statement to play music file but <strong><em>[avaudioplayer play]</em></strong> is always returning NO instead. I have checked error code but it is showing null.</p>
  
  <p>I have also edited info.plist file to set Audio file setting to play in background.</p>