/// <summary>
/// 开始播放前获取相关信息准备
/// </summary>
/// <param name="playingSongId"></param>
/// <param name="songsItem"></param>
/// <returns></returns>
public static async Task <bool> PreparePlayingSong(long playingSongId, SongsItem songsItem = null)
{
if (songsItem == null)//需获取实例
{
MusicDetailRoot musicDetailRoot = await Task.Run(() => SongService.GetMusicDetail_Get(playingSongId.ToString()));
if (musicDetailRoot == null || musicDetailRoot.songs == null || musicDetailRoot.songs.Count == 0)
{
return(false);
}
songsItem = musicDetailRoot.songs.Last();
//判断是否为喜欢歌曲
if (MainPage.favoriteSongsRoot != null)
{
if (MainPage.favoriteSongsRoot.ids.Find(p => p.Equals(songsItem.Id)) != 0)
{
songsItem.isFavorite = true;
}
}
}
SongUrlRoot songUrlRoot = SongService.GetMusicUrl(songsItem.Id);
if (songUrlRoot == null)
{
return(false);
}
PlayingSong = songsItem;
PlayingSongUrlRoot = songUrlRoot;
var playingSong = PlayingService.PlayingSongList.FirstOrDefault(p => p.Id == PlayingService.PlayingSong.Id);
if (playingSong == null)//将要播放的歌曲不在当前播放列表
{
PlayingSongList = new List <SongsItem>()
{
PlayingSong
};
playingSong = PlayingSong;
}
if (PlayedSongId != null)
{
if (PlayingSongList != PlayedSongList)//不同一个播放列表需清空列表
{
PlayedSongId.Clear();
}
}
else
{
PlayedSongId = new List <long>();
}
PlayedSongId.Remove(playingSong.Id); //删除重复的，避免死循环
PlayedSongId.Add(playingSong.Id);
if (PlayingService.PlayedSong != null) //听歌打卡
{
PlayingService.PlayDurationStopwatch.Stop();
await Task.Run(() => SongService.MarkPlayDuration(PlayedSong.Id, PlayedListId, PlayDurationStopwatch.ElapsedMilliseconds / 1000));
}
//获取专辑
PlayingAlbum = await Task.Run(() => AlbumService.GetAlbum(songsItem.al.id));
if (PlayingAlbum == null)
{
return(false);
}
PlayingService.PlayingAlbumBitmapImage = await FileHelper.DownloadFile(new Uri(PlayingAlbum.album.picUrl + "?param=200y200"));
if (PlayedSong != null && PlayedSongList != null)
{
PlayedSongList.FirstOrDefault(p => p.Id == PlayedSong.Id).IsPlaying = false;
}
PlayingSongList.FirstOrDefault(p => p.Id == PlayingSong.Id).IsPlaying = true;
return(true);
}