MediaReader.java 文件源码

/**
 * Get all the multimedia files, including videos and pictures.
 */
@WorkerThread
public ArrayList<AlbumFolder> getAllMedia() {
    Map<String, AlbumFolder> albumFolderMap = new HashMap<>();
    AlbumFolder allFileFolder = new AlbumFolder();
    allFileFolder.setChecked(true);
    allFileFolder.setName(mContext.getString(R.string.album_all_images_videos));

    scanImageFile(albumFolderMap, allFileFolder);
    scanVideoFile(albumFolderMap, allFileFolder);

    ArrayList<AlbumFolder> albumFolders = new ArrayList<>();
    Collections.sort(allFileFolder.getAlbumFiles());
    albumFolders.add(allFileFolder);

    for (Map.Entry<String, AlbumFolder> folderEntry : albumFolderMap.entrySet()) {
        AlbumFolder albumFolder = folderEntry.getValue();
        Collections.sort(albumFolder.getAlbumFiles());
        albumFolders.add(albumFolder);
    }
    return albumFolders;
}