title: How to receive status of download manager intent until download success or failed
body: <p>Here's my problem.
  I'm trying to download file from my server using download manager intent via Asynctask.
  in my doInBackground of asynctask class, i was call download manager intent, and doinBackground will return boolean value when download finish (Success or Failed).
  Here's my code</p>
  
  <pre><code>  protected Boolean doInBackground(String... f_url) {
          boolean flag = true;
          boolean downloading =true;
          try{
              DownloadManager mManager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);            
                             Request mRqRequest = new Request(
                                     Uri.parse("http://"+model.getDownloadURL()));
                             long idDownLoad=mManager.enqueue(mRqRequest);
                             DownloadManager.Query query = null;
                             query = new DownloadManager.Query();
                             Cursor c = null;
                               if(query!=null) {
                                          query.setFilterByStatus(DownloadManager.STATUS_FAILED|DownloadManager.STATUS_PAUSED|DownloadManager.STATUS_SUCCESSFUL|
                                                  DownloadManager.STATUS_RUNNING|DownloadManager.STATUS_PENDING);                                         
                               } else {
                          return flag;
                              }
                               c = mManager.query(query);
                                  if(c.moveToFirst()) { 
              int status =c.getInt(c.getColumnIndex(DownloadManager.COLUMN_STATUS)); 
  
  
                                 while (downloading)
                                 {    Log.i ("FLAG","Downloading");
                                     if (status==DownloadManager.STATUS_SUCCESSFUL)
                                     {    Log.i ("FLAG","done");
                                         downloading = false;
                                         flag=true;
                                         break;      
                                     }
                                     if (status==DownloadManager.STATUS_FAILED)
                                     {Log.i ("FLAG","Fail");
                                         downloading = false;
                                         flag=false;
                                        break;
                                     }
                         c.moveToFirst();
                                 }
          }
                              return flag;
          }
          catch (Exception e)
          {
               flag = false;
                  return flag;
          }    
      }
  </code></pre>
  
  <p>But DownloadManager status never jump on DownloadManager.STATUS_SUCCESSFUL or DownloadManager.STATUS_FAILED.</p>