title: react-native FlastList cannot scroll to the end
body: <p>I want to implement a chat room that use the FlastList to load chat logs, so I need the FlastList to scroll to the bottom of the list every time I have a new chat log. But it didn't work</p>
  
  <p>"react": "16.8.3",
  "react-native": "^0.58.6",</p>
  
  <pre><code>    this.refs.flatlist.scrollToEnd()
  </code></pre>