WebRtc 网页在浏览器上工作时无法与 flutter webview 一起使用

Question

我最近创建了一个托管在 Ubuntu 上的 Webrtc web 应用程序。 它可以在浏览器上按预期工作，包括 PC 和移动浏览器。 它也要求相机和麦克风的许可。

当我在 flutter 上使用带有flutter_webview_pro插件的 web url 时，我的问题就开始了。 我知道我必须请求 flutter 的许可，我使用permission_handler插件执行以下操作：

bool _permissions = false;
final Completer<WebViewController> _controller =
Completer<WebViewController>();

@override
void initState() {
  super.initState();
  if (Platform.isAndroid) {
    WebView.platform = SurfaceAndroidWebView();
  }
  permissions();
}

Future<void> permissions() async {
  Map<Permission, PermissionStatus> multiPermissions = await [
    Permission.camera,
    Permission.microphone,
  ].request();
  if(multiPermissions[Permission.camera] != PermissionStatus.granted){
    _getCameraPermission();
  } else if(multiPermissions[Permission.microphone] != PermissionStatus.granted){
    _getMicrophonePermission(true);
  } else {
    setState(() {
      _permissions = true;
    });
  }
}

void _getCameraPermission(){
  Permission.camera.request().then((cameraStatus) {
    if(cameraStatus.isGranted == true){
      _getMicrophonePermission(true);
    } else {
      debugPrint('debug: Camera Permission Denied');
      _getMicrophonePermission(false);
    }
  });
}

void _getMicrophonePermission(cameraPermission){
  Permission.microphone.request().then((microphoneStatus) {
    if(microphoneStatus.isGranted && cameraPermission){
      setState(() {
        _permissions = true;
      });
    } else {
      debugPrint('debug: Permission Denied');
    }
  });
}

@override
Widget build(BuildContext context) {
  return Scaffold(
    body: _permissions ? WebView(
      javascriptMode: JavascriptMode.unrestricted,
      initialUrl: 'https://subdomain.mydomain.com:8443/?room=123456',
      onWebViewCreated: (WebViewController webViewController) {
        _controller.complete(webViewController);
      },
    ) : Container(),
    );
}

我收到以下错误：

E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.cameraId"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.packagelist"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.extrapackagelist"
E/libc    ( 8244): Access denied finding property "vendor.camera.aux.packagelist"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.cameraId"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.packagelist"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.extrapackagelist"
E/libc    ( 8244): Access denied finding property "vendor.camera.aux.packagelist"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.cameraId"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.packagelist"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.extrapackagelist"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.cameraId"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.packagelist"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.extrapackagelist"
E/libc    ( 8244): Access denied finding property "vendor.camera.aux.packagelist"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.cameraId"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.packagelist"
E/libc    ( 8244): Access denied finding property "vendor.camera.fullsize.extrapackagelist"

在 Menifest 我有以下权限：

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<uses-permission android:name="android.permission.VIDEO_CAPTURE" />
<uses-permission android:name="android.permission.AUDIO_CAPTURE" />

和android:hardwareAccelerated="true"

请帮忙。 提前致谢。