IconButton(
  icon: AnimatedIcon(
    progress: _animationController,
    icon: AnimatedIcons.play_pause,
  ),
  onPressed: () {
    if (playStatus.isPlaying) {
      _animationController.reverse();
      _stop();
    } else {
      _animationController.forward();
      _play(downloadLocation ?? item.guid);
    }
  }
)