How to use

DownloadRemoteFileOperation

in

com.owncloud.android.lib.resources.files

private void startDownload() {
  File downFolder = new File(getCacheDir(), getString(R.string.download_folder_path));
  downFolder.mkdir();
  File upFolder = new File(getCacheDir(), getString(R.string.upload_folder_path));
  File fileToUpload = upFolder.listFiles()[0];
  String remotePath = FileUtils.PATH_SEPARATOR + fileToUpload.getName();
  DownloadRemoteFileOperation downloadOperation = new DownloadRemoteFileOperation(remotePath,
      downFolder.getAbsolutePath());
  downloadOperation.addDatatransferProgressListener(this);
  downloadOperation.execute(mClient, this, mHandler);
}

@Override
protected RemoteOperationResult run(OwnCloudClient client) {
  RemoteOperationResult result;
  /// download will be performed to a temporal file, then moved to the final location
  File tmpFile = new File(getTmpPath());
  /// perform the download
  try {
    tmpFile.getParentFile().mkdirs();
    result = downloadFile(client, tmpFile);
    Log_OC.i(TAG, "Download of " + mRemotePath + " to " + getTmpPath() + ": " +
      result.getLogMessage());
  } catch (Exception e) {
    result = new RemoteOperationResult<>(e);
    Log_OC.e(TAG, "Download of " + mRemotePath + " to " + getTmpPath() + ": " +
      result.getLogMessage(), e);
  }
  return result;
}

try {
  status = client.executeHttpMethod(mGet);
  if (isSuccess(status)) {
    targetFile.createNewFile();
    bis = new BufferedInputStream(mGet.getResponseBodyAsStream());
  result = isSuccess(status)
      ? new RemoteOperationResult<>(RemoteOperationResult.ResultCode.OK)
      : new RemoteOperationResult<>(mGet);