private void Me_CurrentStateChanged(object sender, RoutedEventArgs e)
 {
     if (media.CurrentState == MediaElementState.Paused)
     {
         LyricViewer.pause();
         isPause = true;
         needle_storyboard.Stop();
         cover_storyboard.Pause();
     }
     else if (media.CurrentState == MediaElementState.Playing)
     {
         LyricViewer.start();
         needle_storyboard.Begin();
         if (isPause)
         {
             cover_storyboard.Resume();
         }
         else
         {
             cover_storyboard.Begin();
         }
     }
     else if (media.CurrentState == MediaElementState.Opening)
     {
         if (PlayingBarVm.CurrentPlayingSong.Lyric.Length > 100)
         {
             noLyricText.Visibility = Visibility.Collapsed;
             LyricViewer.Visibility = Visibility.Visible;
             LyricViewer.init();
         }
         else
         {
             LyricViewer.Visibility = Visibility.Collapsed;
             noLyricText.Visibility = Visibility.Visible;
         }
         RenderPage();
     }
 }
 private void Me_SeekCompleted(object sender, RoutedEventArgs e)
 {
     LyricViewer.moveTo((int)media.Position.TotalMilliseconds);
 }