title: How to load views in XML into a child ViewGroup of the parent ViewGroup
body: <p>I am trying to create a custom <code>ViewGroup</code> by extending the parent <code>LinearLayout</code> as explained in the picture. But I don't know how, when and where to add the views in the XML into the first child <code>LinearLayout</code> in the extended class of the parent <code>LinearLayout</code>?</p>
  
  <p><img src="https://i.stack.imgur.com/aRguO.jpg" alt="click to view the picture"></p>