title: Android activity restart with same Objectreferences
body: <p>i already read the question <a href="https://stackoverflow.com/questions/456211/activity-restart-on-rotation-android">Activity restart on rotation Android</a> . But it does not really help me. </p>
  
  <p>I've two activities. The Second gets updated from an Async_Task, which holds a few Threads which i cannot just restart. 
  The Problem i got is, that rotating my Device forces an Activity-restart, which means i loose my Reference to the Async_Task.
  Is there any possibility to pass Objektreferences from one activity to another?</p>
  
  <p>Thanks for help!</p>