/// <summary>
/// _mediaTimelineController_PositionChanged 250ms间隔，无可避免歌词延迟
/// </summary>
/// <param name="totalMilliseconds"></param>
public async void ChangeLyricPosition(double totalMilliseconds)
{
if (lyricStrs == null || lyricStrs.Count == 0)
{
return;
}
int index = await Task.Run(() => SearchPerfectTime(totalMilliseconds));
if (index < 0)
{
return;
}
//下一句歌词距当前时间大于100ms先不显示
if (lyricStrs[index].DateTime.TimeOfDay.TotalMilliseconds - totalMilliseconds > 100)
{
return;
}
if (ListBox_lyric.Items.Count != 0)
{
int showItemCount = (int)(ListBox_lyric.ActualHeight / 50);
ListBox_lyric.SelectedIndex = index;
if (index < ListBox_lyric.Items.Count - showItemCount / 2)
{
ListBox_lyric.ScrollIntoView(lyricStrs[index + showItemCount / 2]);
}
if ((Application.Current as App).compactOverlayPage != null)
{
List <LyricStr> lsTemp = new List <LyricStr>();
//前一句
if (index == 0)
{
lsTemp.Add(new LyricStr());
}
else
{
lsTemp.Add(lyricStrs[index - 1]);
}
//当前
lsTemp.Add(lyricStrs[index]);
//后一句
if (index == lyricStrs.Count - 1)
{
lsTemp.Add(new LyricStr());
}
else
{
lsTemp.Add(lyricStrs[index + 1]);
}
(Application.Current as App).compactOverlayPage.UpdateLayout_lyric(lsTemp);
}
}
}
async void UpDateSong()
{
_albumRoot = PlayingService.PlayingAlbum;
_songsItem = PlayingService.PlayingSong;
Image_album.Source = PlayingService.PlayingAlbumBitmapImage;
Button_albumName.Content = _albumRoot.album.name;
string name = "";
for (int i = 0; i < _songsItem.ar.Count; i++)
{
if (i != 0)
{
name += "/";
}
name += _songsItem.ar[i].name;
}
ListBox_artists.ItemsSource = _songsItem.ar;
Button_artistName.Content = name;
TextBlock_songName.Text = _songsItem.Name;
LyricRoot lyricRoot = await Task.Run(() => LyricService.GetLyric(_songsItem.Id));
if (lyricRoot == null)
{
ListBox_lyric.ItemsSource = null;
return;
}
lyricStrs = LyricService.GetLyricStrs(lyricRoot);
if (lyricStrs != null)
{
if (lyricStrs.Count == 0)
{
DateTime dateTime = DateTime.Now;
lyricStrs.Add(new LyricStr()
{
DateTime = dateTime, Original = "无歌词"
});
}
ListBox_lyric.ItemsSource = lyricStrs;
ListBox_lyric.ScrollIntoView(lyricStrs.First());
}
UpDateComment();
UpDateSimiSongs();
}
