public void PerformSingleBackgroundTransfer()
{
if (_sessionTasksList == null)
{
_sessionTasksList = new List <NSUrlSessionTask>();
}
var urlString = _testBkgdDownloadTask.PrepareCurrentURL();
var url = new NSUrl(urlString);
var downloadTask = _backgroundSession.CreateDownloadTask(url);
_sessionTasksList.Add(downloadTask);
downloadTask.Resume();
}
