MDL中大屏幕和小屏幕的MDL-layout__折叠器不同

Question

我，正在尝试创建两个不同的mdl布局__抽屉为小屏幕和大屏幕。根据下面的代码，只有在小屏幕上，mdl-layout__drawer才会显示它在大屏幕上不显示。

<div class="mdl-layout__drawer mdl-layout--large-screen-only">
        <span class="mdl-layout-title"><img src="~/images/transfeteBirdLogo.png" width="80" height="80" /></span>
        <nav class="mdl-navigation">
            <a class="mdl-navigation__link" href="">Link21</a>
            <a class="mdl-navigation__link" href="">Link</a>
            <a class="mdl-navigation__link" href="">Link</a>
            <a class="mdl-navigation__link" href="">Link</a>
        </nav>
    </div>

    <div class="mdl-layout__drawer mdl-layout--small-screen-only">
        <span class="mdl-layout-title"><img src="~/images/transfeteBirdLogo.png" width="80" height="80" /></span>
        <nav class="mdl-navigation">
            <a class="mdl-navigation__link" href="">Link11</a>
            <a class="mdl-navigation__link" href="">Link</a>
            <a class="mdl-navigation__link" href="">Link</a>
            <a class="mdl-navigation__link" href="">Link</a>
        </nav>
    </div>

谁能告诉我代码中有什么地方错了吗？我该如何解决这个问题。

Answer 1

您的整个代码应该包装在一个包含mdl-layout、mdl-js-layout和mdl-layout--fixed-drawer类的目录中。最后一个负责在大屏幕上显示导航菜单。Pen here。

<div class="mdl-layout mdl-js-layout mdl-layout--fixed-drawer">
  <div class="mdl-layout__drawer mdl-layout--large-screen-only">
    <span class="mdl-layout-title"><img src="~/images/transfeteBirdLogo.png" width="80" height="80" /></span>
    <nav class="mdl-navigation">
      <a class="mdl-navigation__link" href="">Link21</a>
      <a class="mdl-navigation__link" href="">Link</a>
      <a class="mdl-navigation__link" href="">Link</a>
      <a class="mdl-navigation__link" href="">Link</a>
    </nav>
  </div>

  <div class="mdl-layout__drawer mdl-layout--small-screen-only">
    <span class="mdl-layout-title"><img src="~/images/transfeteBirdLogo.png" width="80" height="80" /></span>
    <nav class="mdl-navigation">
      <a class="mdl-navigation__link" href="">Link11</a>
      <a class="mdl-navigation__link" href="">Link</a>
      <a class="mdl-navigation__link" href="">Link</a>
      <a class="mdl-navigation__link" href="">Link</a>
    </nav>
  </div>
</div>