method stop

Source

@override
void stop() {
  if (_audioElement != null) {
    _position = this.position;
    _audioElement.pause();
    _audioElement.currentTime = 0;
    _audioElementSound._releaseAudioElement(_audioElement);
    _audioElement = null;
  }
  if (_volumeChangedSubscription != null) {
    _volumeChangedSubscription.cancel();
    _volumeChangedSubscription = null;
  }
  if (_stopped == false) {
    _stopped = true;
    _paused = true;
    _stopCompleteTimer();
    this.dispatchEvent(new Event(Event.COMPLETE));
  }
}