title: Why use fragments in navigation drawer?
body: <p>I followed this tutorial about navigation drawer <a href="http://www.androidhive.info/2013/11/android-sliding-menu-using-navigation-drawer/" rel="nofollow">androidhive-navigation drawer</a> and it has used fragments for the list items.</p>
  
  <p>Similarly all sources I found use fragment views for individual list items. I have these issues.</p>
  
  <ol>
  <li>Why use fragments, when we can use an ordinary Activity class?</li>
  <li>Going with the link example, if I have Home Activity class implemented before, what should I do to convert it to a fragment?</li>
  <li>If Home is the main activity, what happens then?</li>
  </ol>