Android: what's Download manager File size Limitations

Question

what's Downloadmanager downloadable File size Limitations in android, because I'm trying to download a file size (700MB) it's not downloaded but when i try same thing with 1MB or 2MB it's download perfect.

so, any help please

Answer 1

There is no documented limitation on file size, though available disk space would be one likely limit.

For your failing downloads, use DownloadManager.Query to examine the COLUMN_STATUS and COLUMN_REASON values for your download, to try to determine what is going on.

In this sample app, I download a file with DownloadManager, and a I have a button that allows you to view the status information.

When you request a download, you get an int back that is a download request ID:

lastDownload=mgr.enqueue(req);

When the user clicks the appropriate button, I query for the download status, log some of that information to LogCat, and show a Toast:

  private void queryStatus(View v) {
    Cursor c=
        mgr.query(new DownloadManager.Query().setFilterById(lastDownload));

    if (c == null) {
      Toast.makeText(getActivity(), R.string.download_not_found,
                     Toast.LENGTH_LONG).show();
    }
    else {
      c.moveToFirst();

      Log.d(getClass().getName(),
            "COLUMN_ID: "
                + c.getLong(c.getColumnIndex(DownloadManager.COLUMN_ID)));
      Log.d(getClass().getName(),
            "COLUMN_BYTES_DOWNLOADED_SO_FAR: "
                + c.getLong(c.getColumnIndex(DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR)));
      Log.d(getClass().getName(),
            "COLUMN_LAST_MODIFIED_TIMESTAMP: "
                + c.getLong(c.getColumnIndex(DownloadManager.COLUMN_LAST_MODIFIED_TIMESTAMP)));
      Log.d(getClass().getName(),
            "COLUMN_LOCAL_URI: "
                + c.getString(c.getColumnIndex(DownloadManager.COLUMN_LOCAL_URI)));
      Log.d(getClass().getName(),
            "COLUMN_STATUS: "
                + c.getInt(c.getColumnIndex(DownloadManager.COLUMN_STATUS)));
      Log.d(getClass().getName(),
            "COLUMN_REASON: "
                + c.getInt(c.getColumnIndex(DownloadManager.COLUMN_REASON)));

      Toast.makeText(getActivity(), statusMessage(c), Toast.LENGTH_LONG)
           .show();

      c.close();
    }
  }

  private String statusMessage(Cursor c) {
    String msg="???";

    switch (c.getInt(c.getColumnIndex(DownloadManager.COLUMN_STATUS))) {
      case DownloadManager.STATUS_FAILED:
        msg=getActivity().getString(R.string.download_failed);
        break;

      case DownloadManager.STATUS_PAUSED:
        msg=getActivity().getString(R.string.download_paused);
        break;

      case DownloadManager.STATUS_PENDING:
        msg=getActivity().getString(R.string.download_pending);
        break;

      case DownloadManager.STATUS_RUNNING:
        msg=getActivity().getString(R.string.download_in_progress);
        break;

      case DownloadManager.STATUS_SUCCESSFUL:
        msg=getActivity().getString(R.string.download_complete);
        break;

      default:
        msg=
            getActivity().getString(R.string.download_is_nowhere_in_sight);
        break;
    }

    return(msg);
  }