</section>
    <section class="desc markdown">
      <p>Creates the mutable state for this widget at a given location in the tree.</p>
<p>Subclasses should override this method to return a newly created
instance of their associated <code>State</code> subclass:</p>
<pre class="language-dart"><code class="language-dart">@override
_MyState createState() =&gt; new _MyState();
</code></pre>
<p>The framework can call this method multiple times over the lifetime of
a <code>StatefulWidget</code>. For example, if th