title: Android: Dynamically Change Activity Title to Text of Selected List Item
body: <p>I'm new to Android development.  </p>
  
  <p>I created a simple master-detail app that starts with a simple, vertical scrolling list of topics.  </p>
  
  <p>When the user selects a topic, a details screen appears, replacing the first screen, with a list of details that pertain to the selected topic.  </p>
  
  <p>I want the title for the details screen to show the topic the user has selected on the first page, but haven't been able to solve the problem after working for almost a week. </p>
  
  <p>All I need to know is, Can this be done?  Not looking for someone to solve this for me, but maybe a hint or a link to a tutorial that shows how this can be done.</p>
  
  <p>Note: I'd post a drawing of what I want to do, but I'm new here and don't have 10 reputation yet.</p>
  
  <p>Thanks,
  SonCoder</p>