public int createPlaylist(Playlist playlist, boolean overwrite) {
String[] artistNameVariations = playlist.getArtistsVariations();
Cursor cursor = findSongs(artistNameVariations);
int order = 1;
if (cursor != null) { // if any artists matching the playlist artist was found
if (anySongsFound(cursor, playlist)) { // if any of the songs selected were found
Uri insertUri = setupPlaylist(playlist.getPlaylistName(), overwrite);
if (insertUri != null) { // if the playlist was setup correctly
order = addToPlaylist(cursor, insertUri, order, playlist);
cursor.close();
return (order
- 1); // return the number of songs that were found and added to the playlist
} else {
cursor.close();
return ERROR;
}
} else {
cursor.close();
return NO_SONGS;
}
} else {
return NO_ARTIST;
}
}
private boolean anySongsFound(Cursor cursor, Playlist playlist) {
cursor.moveToFirst();
do {
String songName = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
if (playlist.containsSong(songName)) {
return true;
}
} while (cursor.moveToNext());
return false;
}
private int addToPlaylist(Cursor cursor, Uri insertUri, int order, Playlist playlist) {
ContentResolver resolver = mContext.getContentResolver();
do {
String songName = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
if (playlist.containsSong(songName)) {
long id = cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media._ID));
if (!playlistContains(id, insertUri)) {
ContentValues values = new ContentValues();
values.put(MediaStore.Audio.Playlists.Members.PLAY_ORDER, order++);
values.put(MediaStore.Audio.Playlists.Members.AUDIO_ID, id);
resolver.insert(insertUri, values);
}
}
} while (cursor.moveToNext());
cursor.close();
return order;
}