title: How can I add a banner in my view?
body: <p>First, I have some view in <code>MainActivity.java</code> as follows:</p>
  
  <pre><code>CanvasMainMenu canvasMenu = new CanvasMainMenu(this);
  setContentView(canvasMenu);
  </code></pre>
  
  <p>Class CanvasMainMenu extends <code>View</code> and I wanna add some banner into this view.</p>
  
  <p>How can I add view of banner into my <code>CanvasMainMenu</code>?</p>