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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| /* eslint-disable react-native/no-inline-styles */ | ||
| import React from 'react'; | ||
| import { View, Alert, TextInput } from 'react-native'; | ||
|
|
||
| import WebView from 'react-native-webview'; | ||
|
|
||
| const HTML = `<!DOCTYPE html>\n | ||
| <html> | ||
| <head> | ||
| <title>Messaging</title> | ||
| <meta http-equiv="content-type" content="text/html; charset=utf-8"> | ||
| <meta name="viewport" content="width=160, user-scalable=no"> | ||
| <style type="text/css"> | ||
| body { | ||
| margin: 0; | ||
| padding: 0; | ||
| font: 62.5% arial, sans-serif; | ||
| background: #ccc; | ||
| } | ||
| </style> | ||
| </head> | ||
| <body> | ||
| <button onclick="sendPostMessage()">Send post message from JS to WebView</button> | ||
| <p id="demo"></p> | ||
| <p id="test">Nothing received yet</p> | ||
| <script> | ||
| function sendPostMessage() { | ||
| window.ReactNativeWebView.postMessage('Message from JS'); | ||
| } | ||
| window.addEventListener('message',function(event){ | ||
| document.getElementById('test').innerHTML = event.data; | ||
| console.log("Message received from RN: ",event.data); | ||
| },false); | ||
| document.addEventListener('message',function(event){ | ||
| document.getElementById('test').innerHTML = event.data; | ||
| console.log("Message received from RN: ",event.data); | ||
| },false); | ||
| </script> | ||
| </body> | ||
| </html>`; | ||
|
|
||
| export default function MultiMessaging() { | ||
| const webView = React.useRef<WebView | null>(null); | ||
| const webView2 = React.useRef<WebView | null>(null); | ||
|
|
||
| return ( | ||
| <View style={{ flex: 1, flexDirection: 'row' }}> | ||
| <View style={{ flexDirection: 'column', flex: 1, margin: 4 }}> | ||
| <TextInput | ||
| style={{ | ||
| height: 40, | ||
| borderColor: 'gray', | ||
| borderWidth: 1, | ||
| margin: 8, | ||
| }} | ||
| onSubmitEditing={(e) => { | ||
| webView.current?.postMessage(e.nativeEvent.text); | ||
| }} | ||
| /> | ||
| <WebView | ||
| ref={webView} | ||
| source={{ html: HTML }} | ||
| onLoadEnd={() => { | ||
| webView.current?.postMessage('Hello from RN'); | ||
| }} | ||
| automaticallyAdjustContentInsets={false} | ||
| onMessage={(e: { nativeEvent: { data?: string } }) => { | ||
| Alert.alert('Message received from JS: ', e.nativeEvent.data); | ||
| }} | ||
| /> | ||
| </View> | ||
|
|
||
| <View style={{ flexDirection: 'column', flex: 1, margin: 4 }}> | ||
| <TextInput | ||
| style={{ | ||
| height: 40, | ||
| borderColor: 'gray', | ||
| borderWidth: 1, | ||
| margin: 8, | ||
| }} | ||
| onSubmitEditing={(e) => { | ||
| webView2.current?.postMessage(e.nativeEvent.text); | ||
| }} | ||
| /> | ||
| <WebView | ||
| ref={webView2} | ||
| source={{ | ||
| html: HTML.replace(/from JS/g, 'from JS2'), | ||
| }} | ||
| onLoadEnd={() => { | ||
| webView2.current?.postMessage('Hello from RN2'); | ||
| }} | ||
| automaticallyAdjustContentInsets={false} | ||
| onMessage={(e: { nativeEvent: { data?: string } }) => { | ||
| Alert.alert('Message received from JS2: ', e.nativeEvent.data); | ||
| }} | ||
| /> | ||
| </View> | ||
| </View> | ||
| ); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| /* eslint-disable react-native/no-inline-styles */ | ||
| import React from 'react'; | ||
| import { View, Alert, TextInput } from 'react-native'; | ||
|
|
||
| import WebView from 'react-native-webview'; | ||
|
|
||
| const HTML = `<!DOCTYPE html>\n | ||
| <html> | ||
| <head> | ||
| <title>Messaging</title> | ||
| <meta http-equiv="content-type" content="text/html; charset=utf-8"> | ||
| <meta name="viewport" content="width=160, user-scalable=no"> | ||
| <style type="text/css"> | ||
| body { | ||
| margin: 0; | ||
| padding: 0; | ||
| font: 62.5% arial, sans-serif; | ||
| background: #ccc; | ||
| } | ||
| </style> | ||
| </head> | ||
| <body> | ||
| <button onclick="sendPostMessage()">Send post message from JS to WebView</button> | ||
| <p id="demo"></p> | ||
| <p id="test">Nothing received yet</p> | ||
| <script> | ||
| function sendPostMessage() { | ||
| window.postMessage('Message from JS'); | ||
| } | ||
| window.addEventListener('message',function(event){ | ||
| document.getElementById('test').innerHTML = event.data; | ||
| console.log("Message received from RN: ",event.data); | ||
| },false); | ||
| document.addEventListener('message',function(event){ | ||
| document.getElementById('test').innerHTML = event.data; | ||
| console.log("Message received from RN: ",event.data); | ||
| },false); | ||
| </script> | ||
| </body> | ||
| </html>`; | ||
|
|
||
| export default function MultiMessaging() { | ||
| const webView = React.useRef<WebView | null>(null); | ||
| const webView2 = React.useRef<WebView | null>(null); | ||
|
|
||
| return ( | ||
| <View style={{ flex: 1, flexDirection: 'row' }}> | ||
| <View style={{ flexDirection: 'column', flex: 1, margin: 4 }}> | ||
| <TextInput | ||
| style={{ | ||
| height: 40, | ||
| borderColor: 'gray', | ||
| borderWidth: 1, | ||
| margin: 8, | ||
| }} | ||
| onSubmitEditing={(e) => { | ||
| webView.current?.postMessage(e.nativeEvent.text); | ||
| }} | ||
| /> | ||
| <WebView | ||
| ref={webView} | ||
| source={{ html: HTML }} | ||
| onLoadEnd={() => { | ||
| webView.current?.postMessage('Hello from RN'); | ||
| }} | ||
| automaticallyAdjustContentInsets={false} | ||
| onMessage={(e: { nativeEvent: { data?: string } }) => { | ||
| Alert.alert('Message received from JS: ', e.nativeEvent.data); | ||
| }} | ||
| useWebView2 | ||
| /> | ||
| </View> | ||
|
|
||
| <View style={{ flexDirection: 'column', flex: 1, margin: 4 }}> | ||
| <TextInput | ||
| style={{ | ||
| height: 40, | ||
| borderColor: 'gray', | ||
| borderWidth: 1, | ||
| margin: 8, | ||
| }} | ||
| onSubmitEditing={(e) => { | ||
| webView2.current?.postMessage(e.nativeEvent.text); | ||
| }} | ||
| /> | ||
| <WebView | ||
| ref={webView2} | ||
| source={{ | ||
| html: HTML.replace(/from JS/g, 'from JS2'), | ||
| }} | ||
| onLoadEnd={() => { | ||
| webView2.current?.postMessage('Hello from RN2'); | ||
| }} | ||
| automaticallyAdjustContentInsets={false} | ||
| onMessage={(e: { nativeEvent: { data?: string } }) => { | ||
| Alert.alert('Message received from JS2: ', e.nativeEvent.data); | ||
| }} | ||
| useWebView2 | ||
| /> | ||
| </View> | ||
| </View> | ||
| ); | ||
| } |
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