title: Passing a thread object to service
body: <p>In my activity I start a thread which works a long time. In order to stop the thread at application termination (when the user removes it from the recent app list), I want to call <code>thread.interrupt()</code>
  in a service inside <code>void onTaskRemoved(Intent rootIntent)</code>. But I have no access to my thread object in my activity. </p>
  
  <p>So my question is: How can I pass the thread to my service?</p>