tion">
        <div class="nav-section-header">
          <a href="../training/backward-compatible-ui/index.html"
             description=
             "How to use UI components and other APIs from the more recent versions of Android
             while remaining compatible with older versions of the platform."
            >Creating Backward-Compatible UIs</a>
        </div>
        <ul>
          <li><a href="../training/backward-compatible-ui/abstracting.html">
            Abstracting the New APIs
       