orting-devices/platforms.html">
            Supporting Different Platform Versions
          </a>
          </li>
        </ul>
      </li>

      <li class="nav-section">
        <div class="nav-section-header">
          <a href="../../../training/basics/activity-lifecycle/index.html"
             description=
             "How Android activities live and die and how to create
             a seamless user experience by implementing lifecycle callback methods."
            >Managing the Activity Lifecycle<