title: Save object reference to Bundle in Android
body: <p>Is it possible to save a reference to an object in a bundle?<br>
  Not the whole object, only the reference?</p>
  
  <p>For example, <code>Bundle</code> class has method to <code>get</code> an object but I can't find the <code>put</code> or <code>set</code> method.</p>
  
  <p>I need it because in an activity, I create an instance of my timer class, and then I start the timer: <code>myTimer.start()</code></p>
  
  <p>If I have to restart the activity, I want to restore the timer to it's previous value.</p>