C＃UWP一次两个MediaElement

Question

我正在开发Microsoft UWP。我需要一个播放器来播放两个单独的网址。 MediaElement没有时间轴控件，因此我创建了2个MediaElement并使用以下代码：

                            AudioPlayer.AutoPlay = false;
                            AudioPlayer.Source = new Uri("audio url");
                            MediaPlayer.Source = new Uri("video url");
                            MediaPlayer.CurrentStateChanged += (sender, args) =>
                            {
                                AudioPlayer.Position = MediaPlayer.Position;
                                if (MediaPlayer.CurrentState == MediaElementState.Paused)
                                    AudioPlayer.Pause();
                                else if (MediaPlayer.CurrentState == MediaElementState.Playing)
                                    AudioPlayer.Play();
                                else if (MediaPlayer.CurrentState == MediaElementState.Stopped)
                                    AudioPlayer.Stop();
                                else
                                    AudioPlayer.Pause();

                            };
                            MediaPlayer.SeekCompleted += (sender, args) =>
                            {
                                AudioPlayer.Position = MediaPlayer.Position;
                            };

如何提高效率？