DownloadManager.ACTION_DOWNLOAD_COMPLETE broadcast receiver receiving same download id more than once with different download statuses in Android

Question

I am using Android DownloadManger System Service for downloading some files in following way

dwnId = mgr.enqueue(new DownloadManager.Request(serveruri)
             


        

Answer 1

A simple way to download your files, See download progress in notification bar and even open your file when it complete to download by just clicking it in the notification bar.

Just call this method and pass your filename and download url

 public void downloadFile(String name, String url){ 
        //download link
        downloadUri = Uri.parse(url);

        DownloadManager.Request request = new DownloadManager.Request(downloadUri);

        //allow download to take place over wifi, mobile network and roaming
        request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI | DownloadManager.Request.NETWORK_MOBILE ).setAllowedOverRoaming(true);
        request.setAllowedOverRoaming(false);

        //name to show while downloading
        request.setTitle(name);

        //description to show while downloading
        request.setDescription("Downloading " + name);

        //show on navigation
        request.setVisibleInDownloadsUi(true);

        //download path
        request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS.toString(), "/" + name);

        //file open when item on navigation is clicked
        request.allowScanningByMediaScanner();
        request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
       long downloadId = downloadManager.enqueue(request);

    }

Output

You can learn more here

Answer 2

This is a reported bug see: http://code.google.com/p/android/issues/detail?id=18462

The way around I found is to verify if the download was a success, if not ditch the intent or re-queue the file if it was never downloaded...

Lost a couple of hours figuring that one :(

** Edit: adding code example **

/**
 * Check if download was valid, see issue
 * http://code.google.com/p/android/issues/detail?id=18462
 * @param long1
 * @return
 */
private boolean validDownload(long downloadId) {

    Log.d(TAG,"Checking download status for id: " + downloadId);

    //Verify if download is a success
    Cursor c= dMgr.query(new DownloadManager.Query().setFilterById(downloadId));

    if(c.moveToFirst()){            
        int status = c.getInt(c.getColumnIndex(DownloadManager.COLUMN_STATUS));

        if(status == DownloadManager.STATUS_SUCCESSFUL){
            return true; //Download is valid, celebrate
        }else{
            int reason = c.getInt(c.getColumnIndex(DownloadManager.COLUMN_REASON));
            Log.d(TAG, "Download not correct, status [" + status + "] reason [" + reason + "]");            
            return false;
        }   
    }               
    return false;                                   
}

For complete code see : https://github.com/flegare/JAV387_LaboWidget/blob/master/src/com/mobidroid/widgetfact/service/FactService.java