title: Get currency symbol from currency/country code
body: <p>I have my app translated to different languages (<a href="https://pub.dev/packages/flutter_translate" rel="nofollow noreferrer">https://pub.dev/packages/flutter_translate</a>) and I also provide the option to select a specific currency (<a href="https://pub.dev/packages/country_currency_pickers" rel="nofollow noreferrer">https://pub.dev/packages/country_currency_pickers</a>):</p>
  <p><a href="https://i.stack.imgur.com/DCAJY.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DCAJY.png" alt="enter image description here" /></a>
  <em>first 2 options</em></p>
  <p>When I select the currency I get this:</p>
  <p><a href="https://i.stack.imgur.com/RPQqE.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RPQqE.png" alt="enter image description here" /></a></p>
  <p>Now that everything is selected I need to update my currency and for that I can do:</p>
  <pre><code>NumberFormat.simpleCurrency(
        locale: &quot;en_GB&quot;,
  ).format(money);
  </code></pre>
  <p>Notice that I have <code>en_GB</code> which is what I'd need here to display pounds. For this example I get <code>es</code> from the language and <code>GB</code> from the currency but <code>es_GB</code> gets euros instead of pounds, which is what I'd need.</p>
  <ul>
  <li>How can I get the country code from any of the previous parameters?</li>
  <li>Can I pass something else to get the symbol like currencyCode for example?</li>
  </ul>