使用动态文件名获取SQLite数据库备份

如果有多个SQLite数据库(在下面的截图中,我想得到11408102018000005)已经备份到了SD卡上 .db 文件?

注:

这是图片:

这是我还原SQLite数据库时的代码。

private void restoreDB() {
    try {
        File[] sd = getContext().getExternalFilesDirs(null);

        if (sd[1].canWrite()) {
            File backupDB = new File(sd[1] + "/" + curControlNo);    //<--- what to put here. This is just a test path and name
            File currentDB = new File(getContext().getDatabasePath(DBHelper.DB_NAME).getPath());

            FileChannel src = new FileInputStream(backupDB).getChannel();
            FileChannel dst = new FileOutputStream(currentDB).getChannel();
            dst.transferFrom(src, 0, src.size());
            src.close();
            dst.close();
            Toast.makeText(getContext(), "Import Successful!", Toast.LENGTH_SHORT).show();
            openHome();
        }
    } catch (Throwable e) {
        Toast.makeText(getContext(), "Import Failed!", Toast.LENGTH_SHORT).show();
        e.printStackTrace();
    }
}