小编bot*_*t91的帖子

我有一个关于下载管理器的问题.我要从网站下载文件.当我设置下载的默认目录(Environment.DIRECTORY_DOWNLOAD)时,一切正常,我的下载开始了.但是,如果我尝试更改目录,我的应用程序不会下载该文件.特别是,我希望我的文件进入下载文件夹,例如/ storage/sdcard/Download/myFolder.我该如何解决这个问题？

File mydownload = new File (Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)+ "/myFolder");

if (!mydownload.exists()){
    mydownload.mkdir();
}

String url = sUrl[0];
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
    request.allowScanningByMediaScanner();
    request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
}

request.setDestinationInExternalPublicDir(mydownload.getAbsolutePath(),"Myfile.extension");


DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
manager.enqueue(request);