title: Getting the current section that is in the viewport in React-Native sectionlist
body: <p>I want to detect which section of the react-native sectionlist is in the viewport.
  <a href="https://i.stack.imgur.com/oJe2S.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/oJe2S.jpg" alt="enter image description here"></a></p>
  
  <p>Is there any solution?</p>