  <p>Finishes recording graphical operations.</p>
<p>Returns a picture containing the graphical operations that have been
recorded thus far. After calling this function, both the picture recorder
and the canvas objects are invalid and cannot be used further.</p>
<p>Returns null if the PictureRecorder is not associated with a canvas.</p>
    </section>
    
    <section class="summary source-code" id="source">
      <h2><span>Implementation</span></h2>
      <pre class="language-dart"><code class="language-d