at the bottom of the screen in vertical orientation.
</div> -->

<img src="../../design/media/action_bar_pattern_rotation.png">


<h2 id="considerations-split-action-bars">分割操作栏的布局考虑</h2>

<div class="layout-content-row">
  <div class="layout-content-col span-8 with-callouts">

<p>在把内容拆分成不同的操作栏时，你又三个可能的地方来显示操作栏内容：</p>
<ol>
<li><strong>主操作栏</strong></li>
<li><strong>顶栏</strong></li>
<li><strong>底栏</strong></