APIs: window.postMessage in WebView , post a message to react-native JS . onMessage callback in react-native JS , receive a message from WebView . injectjavascript , Function that accepts a string that will be passed to the WebView and executed immediately as JavaScript. injectedjavascript , Set this to provide JavaScript that will be injected into the web page when the view loads. onMessage A function that is invoked when the webview calls window.postMessage. Setting this property will inject a postMessage global into your webview, but will still call pre-existing values of postMessage. window.postMessage accepts one argument, data, which will be available on the event object, event.nativeEvent.data. data must be a string. Sample code import React, { Component } from 'react'; import { Button, Platform, StyleSheet, Text, View, WebView, } from 'react-native'; var WEBVIEW_REF = 'webview'; export default class App extends Component<...