import React, {useState, useRef} from 'react'; import {View, Text, StatusBar, Button} from 'react-native'; import {WebView} from 'react-native-webview'; const App = () => { const ref = useRef(undefined); const [hello, setHello] = useState(false); const html = ` WebTest web view

Hello, World!

`; const triggerHello = () => { ref.current.injectJavaScript('sendData(); true'); }; return ( <> { setHello(true); }} /> {hello ? ( Hello from the webview! ) : ( No hello yet )}