title: Changing android widget setup preferences after creation?
body: <p>Say my app has a widget and I use a configuration screen to do initial app widget setup and set a few preferences.</p>
  
  <p>I want the user to be able to change those settings by simply going into my app's settings screen and clicking an intent preference to open up the same options the user was given when the app was created.</p>
  
  <p>Can I use the same activity as the configuration activity?  Will I have to handle it differently?  How does the existing widget get updated with the new settings?</p>
  
  <p>How can I get this to work?</p>