im integrating webview in my flutter app. here is the related code:

import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';


class _WebViewStackState extends State<WebViewStack> {
  var loaded = false;
  late WebViewController _webViewController;

  @override
  void initState() {
    super.initState();

    _webViewController = WebViewController()
      ..loadRequest(Uri.parse(widget.url))
      ..setNavigationDelegate(
        NavigationDelegate(
          onPageStarted: (url) {},
          onProgress: (progress) {},
          onPageFinished: (url) {
            setState(() {
              loaded = true;
            });
          },
          onNavigationRequest: (navigation) {
            final host = Uri.parse(navigation.url).host;
            print(host);
            return NavigationDecision.navigate;
          },
        ),
      )
      ..setJavaScriptMode(JavaScriptMode.unrestricted)
      ..addJavaScriptChannel(
        'callNativeMethod',
        onMessageReceived: (message) {
          print(message.message);
        },
      )
      ..addJavaScriptChannel('callAnalysisEvents',
          onMessageReceived: (message) {
        print(message.message);
      });
  }

  @override
  Widget build(BuildContext context) {
    print(widget.url);

    return
        SafeArea(
            child: WebViewWidget(
      controller: _webViewController,
    ));
  }
}

I can receive messages from iOS, but cannot in android.

here is the code from js side:

iOS

messageHandlers.callNativeMethod.postMessage

android

window.external. CallNativeMethod(JSON.stringify({type,data}))

already set this in AndroidManifest.xml:

<uses-permission android:name="android.permission.INTERNET"/>

I also tried InAppWebView, but I didn’t receive any message from the js side.

hope it working fine in both iOS and android. have I missed something?

any ideas?