title: How to use React.forwardRef() in React Native
body: <p>I am using <code>refs</code> for access child component</p>
  
  <pre><code>&lt;MyComponent
     ref='_my_refs'
     ...
  /&gt;
  </code></pre>
  
  <p>and call them</p>
  
  <pre><code>this.refs._my_refs.scrollToTop();
  </code></pre>
  
  <p>I get the error below</p>
  
  <blockquote>
    <p>Warning: Function components cannot be given refs. Attempts to access this ref will fail. Did you mean to use React.forwardRef()?</p>
  </blockquote>