dev/snippets/config/skeletons/application.html

{@inject-html}
<div class="snippet-buttons">
  <script>var visibleSnippet{{serial}} = "shortSnippet{{serial}}";</script>
  <button id="shortSnippet{{serial}}Button"
          onclick="visibleSnippet{{serial}} = showSnippet('shortSnippet{{serial}}', visibleSnippet{{serial}});"
          selected>Sample</button>
  <button id="longSnippet{{serial}}Button"
          onclick="visibleSnippet{{serial}} = showSnippet('longSnippet{{serial}}', visibleSnippet{{serial}});">Sample in an App</button>
</div>
<div class="snippet-container">
  <div class="snippet" id="shortSnippet{{serial}}">
    {{description}}
    <div class="copyable-container">
      <button class="copy-button-overlay copy-button" title="Copy to clipboard"
              onclick="copyTextToClipboard(visibleSnippet{{serial}});">
        <i class="material-icons copy-image">assignment</i>
      </button>
      <pre class="language-{{language}}"><code class="language-{{language}}">{{code}}</code></pre>
    </div>
  </div>
  <div class="snippet" id="longSnippet{{serial}}" hidden>
    <div class="snippet-description">To create a sample project with this code snippet, run:<br/>
      <span class="snippet-create-command">flutter create --sample={{id}} mysample</span>
    </div>
    <div class="copyable-container">
      <button class="copy-button-overlay copy-button" title="Copy to clipboard"
              onclick="copyTextToClipboard(visibleSnippet{{serial}});">
        <i class="material-icons copy-image">assignment</i>
      </button>
      <pre class="language-{{language}}"><code class="language-{{language}}">{{app}}</code></pre>
    </div>
  </div>
</div>
{@end-inject-html}