tify problems in your app's layout performance and improve the UI
             responsiveness."
            >Improving Layout Performance</a>
        </div>
        <ul>
          <li><a href="../../../training/improving-layouts/optimizing-layout.html">
            Optimizing Layout Hierarchies
          </a>
          </li>
          <li><a href="../../../training/improving-layouts/reusing-layouts.html">
            Re-using Layouts with &lt;include/&gt;
          </a>
          </li>
          <li><a href