我有一个适用于 Android 的 React Native 应用程序，它支持实时聊天(使用 Intercom)。为了访问 Intercom，我使用 WebView 和 injectedJavaScript 来显示 UI。它在我的开发版本上运行良好，但是当我进行发布版本时，它提示找不到 window.Intercom (如果删除 window.，我也会遇到相同的相关问题。 )
这是我尝试运行的代码
IntercomContainer.js
// =============================================================================
// Components >> IntercomContainer
// =============================================================================
// @flow
// Import
// =============================================================================
import * as React from 'react';
import { View, WebView } from 'react-native';
import Spinner from 'react-native-loading-spinner-overlay';
import styles from './styles';
// Content
// =============================================================================
type State = {
isLoading: boolean,
};
type Props = {
appId: string,
}
// Render
// =============================================================================
export default class IntercomContainer extends React.Component<Props, State> {
props: Props = {
appId: '',
};
state: State = {
isLoading: true,
}
setState: Function;
injectedJS = (appId: string) => {
return `
try {
window.Intercom('boot', {
app_id: '${appId}',
});
window.Intercom('show');
window.Intercom('onShow', function() {
document.getElementById('message').innerHTML = '';
setTimeout(() => {
document.getElementById('message').innerHTML = 'Click on the chat button in the bottom-right to open chat...';
}, 1000)
});
} catch(e) {
alert('Intercom failed to load: ' + e.message);
}
`;
}
onLoadEnd = () => {
this.setState({
isLoading: false,
});
}
render(){
const { appId } = this.props;
const { isLoading } = this.state;
return (
<View style={styles.container}>
<Spinner visible={isLoading} />
<WebView
injectedJavaScript={this.injectedJS(appId)}
source={require('./IntercomWebView.html')}
onLoadEnd={this.onLoadEnd}
javaScriptEnabled={true}
style={styles.webView}
/>
</View>
);
}
}
IntercomWebView.html
<!DOCTYPE html>
<head>
<script>
// intercom JS library
var APP_ID = '';
(function(){
debugger;
console.log("Executing function main...");
var w=window;
var ic=w.Intercom;
if (typeof ic === "function") {
ic('reattach_activator');
ic('update',intercomSettings);
} else {
var d=document;
var i= function() {
i.c(arguments)
};
i.q=[];
i.c=function(args){
i.q.push(args)
};
w.Intercom=i;
function l(){
debugger;
console.log("Executing function l...");
var s=d.createElement('script');
s.type='text/javascript';
s.async=true;
s.src='https://widget.intercom.io/widget/' + APP_ID;
var x=d.getElementsByTagName('script')[0];
x.parentNode.insertBefore(s,x);
}
if(w.attachEvent){
w.attachEvent('onload',l);
}else{
w.addEventListener('load',l,false);
}
}
})();
</script>
<style>
main {
align-items: center;
background-color: #fefefe;
color: #999;
display: flex;
font-family: sans-serif;
height: 80vh;
justify-content: center;
text-align: center;
}
</style>
</head>
<body>
<main id="message">
loading...
</main>
</body>
</html>
谢谢!
最佳答案
您的问题的根本原因很可能与postMessage相同。漏洞。使用 Intercom 对象的代码将在初始化该对象的 JavaScript 代码之前加载。作为解决方法，您可以使用一些神奇值在 setTimeout 中调用此代码，或实现 more "neat" solution您将推迟对 Intercom 对象的实际调用，直到它初始化
关于javascript - React Native WebView JavaScript 构建问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/46648549/