Question

我在 S3 上托管了一个静态站点，上面有 CloudFront 发行版。

<WebView
  ref={webViewRef}
  scrollEnabled={false}
  source={{ uri: Config.REMOTE_URL }} // CloudFront URL
  sharedCookiesEnabled={true}
  onMessage={(event) => receivedMessageFromWebView(event.nativeEvent.data)}
/>

我们postMessage()上网的方式是这样的

const sendDataToWebView = (dataMap: any) => {
  const dataToPost = { type: 'data', data: dataMap };
  const postMessageJSCode = `
    window.postMessage(${JSON.stringify(dataToPost)}, "*");
    true;
  `;
  if (webViewRef && webViewRef.current) {
    webViewRef.current.injectJavaScript(postMessageJSCode);
  }
}

onMessage 实现如下

const receivedMessageFromWebView = (msgData: any) => {
  console.log('Data Received from WebView -->', msgData); // <-- Not working
};

我在这里遗漏了什么？

反应：17.0.2
ReactNative：0.64.2
Web 视图：11.6.5

Answer 1

与其window.postMessage不如尝试window.ReactNativeWebView.postMessage

https://github.com/react-native-webview/react-native-webview/blob/master/docs/Reference.md#onmessage

或者文档已经是本地和 webview 之间通信的真正细节：https://github.com/react-native-webview/react-native-webview/blob/master/docs/Guide.md#communicating-between-js-and-native

未触发 React Native WebView onMessage()

1 个答案: