How to use Materialize side-nav?

Good morning, I'm trying to make a menu responsive to my portfolio, I'm using the materialize but when I put it fixed the side-nav of the mobile buga version, it's all dark and does not click on the items, here's the image how it gets when you're with the navbar-fixed class

andhereisanimagetoshowhowitworksnormallywithoutputtingitfixed

TomakethismenuIwatchedthisvideo:2.-TutorialMaterialize:NAVBARofthechannelBrajanMontesPerezonyoutube,Ididnotputthelinkpqifthereisnowaytoputthehtmlcode

Mycodehere(Iremovedthebody)

            menulateral

<linkrel="stylesheet" href="css/materialize.min.css">
<link href="http://fonts.googleapis.com/icon?family=Material+Icons"     rel="stylesheet">
<meta name="viewport" content="width=device-width, initial-scale=1.0" />

<div class="row">

  <div class="navbar-fixed">
    <nav>
            <div class="nav-wrapper grey darken-1">
                <a href="#!" class="brand-logo">Eduardo Moya Simões</a>
                <a href="#" data-activates="mobile-demo" class="button-collapse"><i class="material-icons">menu</i></a>
                <ul class="right hide-on-med-and-down">
                    <li><a href="">Início</a></li>
                    <li><a href="">Habilidades</a></li>
                    <li><a href="">Portifólio</a></li>
                    <li><a href="">Currículo</a></li>
                    <li><a href="">Contato</a></li>
                </ul>
                <ul class="side-nav" id="mobile-demo">
                    <li><a href="">Início</a></li>
                    <li><a href="">Habilidades</a></li>
                    <li><a href="">Portifólio</a></li>
                    <li><a href="">Currículo</a></li>
                    <li><a href="">Contato</a></li>
                </ul>
            </div>
    </nav>
  </div>
   <script src="js/jquery-3.1.1.js"></script>
   <script src="js/materialize.min.js" ></script>
   <script type="text/javascript">
      $(document).ready(function(){
      $('.parallax').parallax();
    });
   </script>
   <script>
     $( document ).ready(function(){
     $(".button-collapse").sideNav();
   })
 </script>