@Override public synchronized void download( List<MusicDirectory.Entry> songs, boolean save, boolean autoplay, boolean playNext) { shufflePlay = false; int offset = 1; if (songs.isEmpty()) { return; } if (save) { for (MusicDirectory.Entry song : songs) { DownloadFile downloadFile = forSong(song); downloadFile.pin(); if (!downloadFile.isWorkDone() && !downloadList.contains(downloadFile)) { downloadList.add(downloadFile); } } } else if (playNext) { if (autoplay && getCurrentPlayingIndex() >= 0) { offset = 0; } for (MusicDirectory.Entry song : songs) { DownloadFile downloadFile = new DownloadFile(this, song); downloadList.add(getCurrentPlayingIndex() + offset, downloadFile); offset++; } } else { for (MusicDirectory.Entry song : songs) { DownloadFile downloadFile = new DownloadFile(this, song); downloadList.add(downloadFile); } } revision++; updateJukeboxPlaylist(); if (autoplay) { play(0); } else { if (currentPlaying == null) { currentPlaying = downloadList.get(0); } checkDownloads(); } lifecycleSupport.serializeDownloadQueue(); }