title: Dynamic navigation items in Drawer Navigator
body: <p>I want to populate DrawerNavigator from response from an api. How can the drawer items be loaded dynamically?</p>
  
  <p>Eg</p>
  
  <pre><code>    'someName1': { screen: (props) =&gt; &lt;someView {...props} viewId='someId2' /&gt; },
      'someName2': { screen: (props) =&gt; &lt;someView {...props} viewId='someId2' /&gt; },
  </code></pre>