React Native WebView postMessage does not work

Question

I can\'t get React Native WebView postMessage to work. The React Native app successfully receives the post message sendt from the web app. But the web app does not receive m

Answer 1

Actually the listener works differently in different OSs such as iOS and Android. So you should use document.addEventListener for Android and window.addEventListener for iOS.

if(navigator.appVersion.includes('Android')){
            document.addEventListener("message", function (data) {
               alert("you are in android OS");
            });
        }
else {
            window.addEventListener("message", function (data) {
               alert("you are in android OS");               
             });
        }