title: Double popping to close alert and get the previous rote
body: <p>I've found that I'm using double <code>Navigator.pop</code> to close alert and poping the current route.
  Is it ok or there is other way to do it?</p>
  <pre><code>Alert( // rflutter_alert package
    context: context,
    desc: &quot;Flutter is awesome.&quot;,
    closeFunction: () {
      Navigator.pop(context);
      Navigator.pop(context);
    },
  ).show();
  </code></pre>