与下载管理器一起使用公共下载文件夹

Question

我正在尝试从firebase下载一些文件，所以我创建了此methode

private void downloadFile(String url, String destination,String fileName,String fileExtension)
{
    DownloadManager downloadManager = (DownloadManager) context.getSystemService(context.DOWNLOAD_SERVICE);
    Uri uri = Uri.parse(url);
    DownloadManager.Request request = new DownloadManager.Request(uri);
    request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
    request.setDestinationInExternalFilesDir(context,destination,fileName+"."+fileExtension);
    downloadManager.enqueue(request);
}

，但是这些文件并未保存在公共下载文件夹中，它保存在android/data/apppackageName/apppackagename/files/files/storage/emulation/emulation/0/下载