How to Enable Android Download Manager

Question

I\'m using Android Download Manager to download list of files. Lately I came across a crash report saying

Unknown java.lang.IllegalArgumentException: Unknown

Answer 1

May be it's help to you.

downloadManager = (DownloadManager)getSystemService(DOWNLOAD_SERVICE);
   DownloadManager.Request request = new DownloadManager.Request(Download_Uri);
   //Restrict the types of networks over which this download may proceed.
   request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI | DownloadManager.Request.NETWORK_MOBILE);
   //Set whether this download may proceed over a roaming connection.
   request.setAllowedOverRoaming(false);
   //Set the title of this download, to be displayed in notifications (if enabled).
   request.setTitle("My Data Download");
   //Set a description of this download, to be displayed in notifications (if enabled)
   request.setDescription("Android Data download using DownloadManager.");
   //Set the local destination for the downloaded file to a path within the application's external files directory
   request.setDestinationInExternalFilesDir(this,Environment.DIRECTORY_DOWNLOADS,"CountryList.json");

   //Enqueue a new download and same the referenceId
   downloadReference = downloadManager.enqueue(request);

http://www.mysamplecode.com/2012/09/android-downloadmanager-example.html