title: DownloadManager with manually pause and resume
body: <p>I need to implement Download-Manager with pause and resume mechanism.</p>
  
  <p>This manager is needed for downloading large video files or any other type.</p>
  
  <p>I thought about using Android's DownloadManager, but as far as I know the DownloadManager doesn't support a manual pause and resume by the user.</p>
  
  <p>What other Android build-in options do I have except for writing this component myself?
  Or maybe one knows how to use DownloadManager with manually pause and resume?</p>