React Native WebView onMessage doesn`t work












0















My companent



import React, {Component} from 'react';
import {WebView} from 'react-native';

class Html extends Component {

constructor(props){
super(props);
this.webView = null;
}

onMessage( event ) {
console.log( "On Message", event.nativeEvent.data );
}

sendPostMessage(msg) {
console.log( "Sending post message",msg );
this.webView.postMessage(JSON.stringify(msg));
}

runJSInBackground (code) {
this.webView.injectJavaScript(code)
}


render() {
return (
<WebView
originWhitelist={['*']}
ref={( webView ) => this.webView = webView}
onMessage={this.onMessage}
onError={(e)=>console.log("WebView error: "+e)}
source={{
baseUrl:"include/",
html: `
<html>
<head>
</head>
<body>
<script>
document.addEventListener("message",function(event) {
console.log("Received post message", event); //Work!!!
}, false);

setTimeout(()=>window.postMessage("WhatsAppMANNN!!!"),5000) //doesn`t work ((
</script>
</body>
</html>
` }}
/>
)
}

}

export default Html;


Everything works fine when I send a WebView request, but there is no answer to the return. That is, the window.postMessage method does not work, and the error does not light either. What's the catch, not how I can not find the answer to this question.










share|improve this question























  • Try with webView.postMessage("WhatsAppMANNN!!!"),5000)

    – Anurag Chutani
    Nov 21 '18 at 7:02











  • Does not help, tried and wait for the bridge function waitForBridge() { if (window.postMessage.length !== 1) setTimeout(waitForBridge, 200); else window.postMessage('abcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc'); } window.onload = waitForBridge;

    – Владимир Аристархов
    Nov 21 '18 at 7:23













  • waiting for the bridge with window.postMessage.length === 1 does not work since chrome 70

    – Ulysse Mizrahi
    Jan 22 at 17:38
















0















My companent



import React, {Component} from 'react';
import {WebView} from 'react-native';

class Html extends Component {

constructor(props){
super(props);
this.webView = null;
}

onMessage( event ) {
console.log( "On Message", event.nativeEvent.data );
}

sendPostMessage(msg) {
console.log( "Sending post message",msg );
this.webView.postMessage(JSON.stringify(msg));
}

runJSInBackground (code) {
this.webView.injectJavaScript(code)
}


render() {
return (
<WebView
originWhitelist={['*']}
ref={( webView ) => this.webView = webView}
onMessage={this.onMessage}
onError={(e)=>console.log("WebView error: "+e)}
source={{
baseUrl:"include/",
html: `
<html>
<head>
</head>
<body>
<script>
document.addEventListener("message",function(event) {
console.log("Received post message", event); //Work!!!
}, false);

setTimeout(()=>window.postMessage("WhatsAppMANNN!!!"),5000) //doesn`t work ((
</script>
</body>
</html>
` }}
/>
)
}

}

export default Html;


Everything works fine when I send a WebView request, but there is no answer to the return. That is, the window.postMessage method does not work, and the error does not light either. What's the catch, not how I can not find the answer to this question.










share|improve this question























  • Try with webView.postMessage("WhatsAppMANNN!!!"),5000)

    – Anurag Chutani
    Nov 21 '18 at 7:02











  • Does not help, tried and wait for the bridge function waitForBridge() { if (window.postMessage.length !== 1) setTimeout(waitForBridge, 200); else window.postMessage('abcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc'); } window.onload = waitForBridge;

    – Владимир Аристархов
    Nov 21 '18 at 7:23













  • waiting for the bridge with window.postMessage.length === 1 does not work since chrome 70

    – Ulysse Mizrahi
    Jan 22 at 17:38














0












0








0








My companent



import React, {Component} from 'react';
import {WebView} from 'react-native';

class Html extends Component {

constructor(props){
super(props);
this.webView = null;
}

onMessage( event ) {
console.log( "On Message", event.nativeEvent.data );
}

sendPostMessage(msg) {
console.log( "Sending post message",msg );
this.webView.postMessage(JSON.stringify(msg));
}

runJSInBackground (code) {
this.webView.injectJavaScript(code)
}


render() {
return (
<WebView
originWhitelist={['*']}
ref={( webView ) => this.webView = webView}
onMessage={this.onMessage}
onError={(e)=>console.log("WebView error: "+e)}
source={{
baseUrl:"include/",
html: `
<html>
<head>
</head>
<body>
<script>
document.addEventListener("message",function(event) {
console.log("Received post message", event); //Work!!!
}, false);

setTimeout(()=>window.postMessage("WhatsAppMANNN!!!"),5000) //doesn`t work ((
</script>
</body>
</html>
` }}
/>
)
}

}

export default Html;


Everything works fine when I send a WebView request, but there is no answer to the return. That is, the window.postMessage method does not work, and the error does not light either. What's the catch, not how I can not find the answer to this question.










share|improve this question














My companent



import React, {Component} from 'react';
import {WebView} from 'react-native';

class Html extends Component {

constructor(props){
super(props);
this.webView = null;
}

onMessage( event ) {
console.log( "On Message", event.nativeEvent.data );
}

sendPostMessage(msg) {
console.log( "Sending post message",msg );
this.webView.postMessage(JSON.stringify(msg));
}

runJSInBackground (code) {
this.webView.injectJavaScript(code)
}


render() {
return (
<WebView
originWhitelist={['*']}
ref={( webView ) => this.webView = webView}
onMessage={this.onMessage}
onError={(e)=>console.log("WebView error: "+e)}
source={{
baseUrl:"include/",
html: `
<html>
<head>
</head>
<body>
<script>
document.addEventListener("message",function(event) {
console.log("Received post message", event); //Work!!!
}, false);

setTimeout(()=>window.postMessage("WhatsAppMANNN!!!"),5000) //doesn`t work ((
</script>
</body>
</html>
` }}
/>
)
}

}

export default Html;


Everything works fine when I send a WebView request, but there is no answer to the return. That is, the window.postMessage method does not work, and the error does not light either. What's the catch, not how I can not find the answer to this question.







react-native






share|improve this question













share|improve this question











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share|improve this question










asked Nov 21 '18 at 6:52









Владимир АристарховВладимир Аристархов

2818




2818













  • Try with webView.postMessage("WhatsAppMANNN!!!"),5000)

    – Anurag Chutani
    Nov 21 '18 at 7:02











  • Does not help, tried and wait for the bridge function waitForBridge() { if (window.postMessage.length !== 1) setTimeout(waitForBridge, 200); else window.postMessage('abcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc'); } window.onload = waitForBridge;

    – Владимир Аристархов
    Nov 21 '18 at 7:23













  • waiting for the bridge with window.postMessage.length === 1 does not work since chrome 70

    – Ulysse Mizrahi
    Jan 22 at 17:38



















  • Try with webView.postMessage("WhatsAppMANNN!!!"),5000)

    – Anurag Chutani
    Nov 21 '18 at 7:02











  • Does not help, tried and wait for the bridge function waitForBridge() { if (window.postMessage.length !== 1) setTimeout(waitForBridge, 200); else window.postMessage('abcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc'); } window.onload = waitForBridge;

    – Владимир Аристархов
    Nov 21 '18 at 7:23













  • waiting for the bridge with window.postMessage.length === 1 does not work since chrome 70

    – Ulysse Mizrahi
    Jan 22 at 17:38

















Try with webView.postMessage("WhatsAppMANNN!!!"),5000)

– Anurag Chutani
Nov 21 '18 at 7:02





Try with webView.postMessage("WhatsAppMANNN!!!"),5000)

– Anurag Chutani
Nov 21 '18 at 7:02













Does not help, tried and wait for the bridge function waitForBridge() { if (window.postMessage.length !== 1) setTimeout(waitForBridge, 200); else window.postMessage('abcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc'); } window.onload = waitForBridge;

– Владимир Аристархов
Nov 21 '18 at 7:23







Does not help, tried and wait for the bridge function waitForBridge() { if (window.postMessage.length !== 1) setTimeout(waitForBridge, 200); else window.postMessage('abcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc'); } window.onload = waitForBridge;

– Владимир Аристархов
Nov 21 '18 at 7:23















waiting for the bridge with window.postMessage.length === 1 does not work since chrome 70

– Ulysse Mizrahi
Jan 22 at 17:38





waiting for the bridge with window.postMessage.length === 1 does not work since chrome 70

– Ulysse Mizrahi
Jan 22 at 17:38












1 Answer
1






active

oldest

votes


















0














Try using:



window.postMessage("Lulz", "*") 


Source: https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage






share|improve this answer

























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    1 Answer
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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    0














    Try using:



    window.postMessage("Lulz", "*") 


    Source: https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage






    share|improve this answer






























      0














      Try using:



      window.postMessage("Lulz", "*") 


      Source: https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage






      share|improve this answer




























        0












        0








        0







        Try using:



        window.postMessage("Lulz", "*") 


        Source: https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage






        share|improve this answer















        Try using:



        window.postMessage("Lulz", "*") 


        Source: https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Dec 29 '18 at 17:32









        סטנלי גרונן

        1,76482245




        1,76482245










        answered Dec 29 '18 at 17:04









        ValdaXDValdaXD

        962217




        962217
































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