title: Flutter App localization : How to get value with String key?
body: <p>I can get value of translations with methods like that :</p>
  <pre><code>AppLocalizations.of(context).closed
  </code></pre>
  <p>if I have &quot;closed&quot; as String variable like that :</p>
  <pre><code>String c = &quot;closed&quot;;
  </code></pre>
  <p>how can I get the value with c Variable :</p>
  <pre><code>AppLocalizations.of(context).c  ( This Makes Error &quot;The getter 'c' isn't defined for the type 'AppLocalizations'&quot;)
  </code></pre>