public async Task <IEnumerable <AudioFileDoc> > GetAudioFilesAsync()
{
var storageFiles = await ScanMusicLibrary();
var audioFileDocs = new List <AudioFileDoc>();
_sw.Start();
foreach (var storageFile in storageFiles)
{
var audioFileDoc = MapStorageFile(storageFile);
audioFileDoc.Checksum = await _checksumProviderService.GetFileChecksum(audioFileDoc.FilePath);
await SetAudioMetadata(audioFileDoc);
AddToDb(audioFileDoc);
audioFileDocs.Add(audioFileDoc);
}
_sw.Stop();
Debug.WriteLine($"Time spent calculating checksums: {_sw.Elapsed}");
_sw.Reset();
return(audioFileDocs);
}
public async Task <IEnumerable <AudioFileDoc> > GetAudioFilesAsync()
{
var audioFileDocs = new List <AudioFileDoc>();
await Task.Run(async() =>
{
//TODO: Request permissions for external storage
var context = Application.Context;
var contentResolver = context.ContentResolver;
var uri = MediaStore.Audio.Media.ExternalContentUri;
var projection = new[]
{
MediaStore.Audio.AudioColumns.Artist,
MediaStore.Audio.AudioColumns.Album,
MediaStore.Audio.AudioColumns.Title,
MediaStore.Audio.AudioColumns.Data
};
var sortOrder = MediaStore.Audio.Media.DefaultSortOrder;
var selection = $"{MediaStore.Audio.Media.InterfaceConsts.IsMusic}=1";
var musicCursor = contentResolver.Query(
uri,
projection,
selection,
null,
sortOrder);
if (musicCursor != null && musicCursor.MoveToFirst())
{
//get columns
var pathColumn = musicCursor.GetColumnIndex
(MediaStore.Audio.Media.InterfaceConsts.Data);
//var idColumn = musicCursor.GetColumnIndex
// (MediaStore.Audio.Media.InterfaceConsts.Id);
var titleColumn = musicCursor.GetColumnIndex
(MediaStore.Audio.Media.InterfaceConsts.Title);
var artistColumn = musicCursor.GetColumnIndex
(MediaStore.Audio.Media.InterfaceConsts.Artist);
var albumColumn = musicCursor.GetColumnIndex
(MediaStore.Audio.Media.InterfaceConsts.Album);
//add songs to list
do
{
//var thisId = musicCursor.GetLong(idColumn);
var thisArtist = musicCursor.GetString(artistColumn);
var thisAlbum = musicCursor.GetString(albumColumn);
var thisTitle = musicCursor.GetString(titleColumn);
var thisPath = musicCursor.GetString(pathColumn);
if (string.IsNullOrWhiteSpace(thisArtist))
{
thisArtist = "Unknown artist";
}
if (string.IsNullOrWhiteSpace(thisAlbum))
{
thisArtist = "Unknown album";
}
if (string.IsNullOrWhiteSpace(thisTitle))
{
thisArtist = "Unknown title";
}
var audioFileDoc = new AudioFileDoc
{
Artist = thisArtist,
Album = thisAlbum,
Title = thisTitle,
FilePath = thisPath
};
audioFileDoc.Checksum = await _checksumProviderService.GetFileChecksum(audioFileDoc.FilePath);
AddToDb(audioFileDoc);
audioFileDocs.Add(audioFileDoc);
} while (musicCursor.MoveToNext());
}
});
return(audioFileDocs);
}