play video's audio out loud and resume playback after plugging out headphones

gistfile1.txt

// SWIFT 2 - http://stackoverflow.com/a/42730969/611879

// setup player
let audioSession = AVAudioSession.sharedInstance()
_ = try? audioSession.setCategory(AVAudioSessionCategoryPlayback, withOptions: .DuckOthers)
_ = try? audioSession.setActive(true)
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(audioRouteChanged), name: AVAudioSessionRouteChangeNotification, object: nil)
player.play()


// observer
func audioRouteChanged(note: NSNotification) {
  if let userInfo = note.userInfo {
    if let reason = userInfo[AVAudioSessionRouteChangeReasonKey] as? Int {
      if reason == AVAudioSessionRouteChangeReason.OldDeviceUnavailable.hashValue {
        // headphones plugged out -> continue playback
        player.play()
      }
    }
  }
}