title: reload listView data
body: <p>I have a source of data that changes from time to time. When it does I simply do:</p>
  
  <pre><code>mylistView.setAdapter(...)
  </code></pre>
  
  <p>which works fine and replaces the old data with the new ones. Thing is, I dunno if it is the right way to go. Is there any way to notify the view about the change in the data layer? Bear in mind I am not using a content provider and the data layer is completely hand-madeso dont make any assumption about the data layer as it is simply a List of beans.</p>
  
  <p>cheers</p>