public override async void Activate()
{
if (Albums.IsNullOrEmpty())
{
await LoadAlbums();
}
if (Artists.IsNullOrEmpty())
{
await LoadArtists(_cancellationToken.Token);
}
}
private async Task LoadSelectedArtist()
{
if (SelectedArtist == null)
{
return;
}
OnTaskStarted("artists");
try
{
if (Albums.IsNullOrEmpty())
{
await LoadAlbums();
}
var albums = await ServiceLocator.LocalMusicService.GetArtistAlbums(SelectedArtist.Id);
if (!albums.IsNullOrEmpty())
{
foreach (var album in albums)
{
var tracks = await ServiceLocator.LocalMusicService.GetAlbumTracks(album.Id);
if (!tracks.IsNullOrEmpty())
{
album.Tracks = tracks.Cast <Audio>().ToList();
}
}
}
else
{
albums = new List <AudioAlbum>();
}
if (SelectedArtist == null)
{
return;
}
var unsortedTracks = await ServiceLocator.LocalMusicService.GetArtistUnsortedTracks(SelectedArtist.Id);
if (!unsortedTracks.IsNullOrEmpty())
{
var unsortedAlbum = new AudioAlbum()
{
Tracks = unsortedTracks.OfType <Audio>().ToList()
};
albums.Insert(0, unsortedAlbum);
}
SelectedArtistAlbums = albums;
SelectedArtistTracks = albums.SelectMany(a => a.Tracks).Cast <LocalAudio>().ToList();
}
catch (Exception ex)
{
OnTaskError("artists", ErrorResources.LoadArtistsErrorCommon);
LoggingService.Log(ex);
}
OnTaskFinished("artists");
}