Android: How to use download manager class?

Question

I want to download a binary file from a url. Is it possible to use the Android download manager class that I found here DownloadManager class?

Answer 1

Is it possible to use the android download manager class that i found here

Yes, though that is only available since Android API Level 9 (version 2.3). Here is a sample project demonstrating the use of DownloadManager.

Answer 2

Use DownloadManager class (GingerBread and newer only)

GingerBread brought a new feature, DownloadManager, which allows you to download files easily and delegate the hard work of handling threads, streams, etc. to the system.

First, let's see a utility method:

/**  * @param context used to check the device version and DownloadManager information  * @return true if the download manager is available  */ public static boolean isDownloadManagerAvailable(Context context) {      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {         return true;     }     return false; } 

Method's name explains it all. Once you are sure DownloadManager is available, you can do something like this:

String url = "url you want to download"; DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url)); request.setDescription("Some descrition"); request.setTitle("Some title"); // in order for this if to run, you must use the android 3.2 to compile your app if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {     request.allowScanningByMediaScanner();     request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); } request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, "name-of-the-file.ext");  // get download service and enqueue file DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE); manager.enqueue(request); 

Download progress will be showing in the notification bar.