1.首先引入flutter_inappwebview依赖

flutter pub add flutter_inappwebview

2.直接上代码

class LoginView extends StatefulWidget {
  final String currentRoute;

  const LoginView({super.key, required this.currentRoute});
  @override
  State<LoginView> createState() => _LoginViewState();
}Ï



class _LoginViewState extends State<LoginView> {
 InAppWebViewGroupOptions options = InAppWebViewGroupOptions(
      crossPlatform: InAppWebViewOptions(
        useShouldOverrideUrlLoading: true,
        mediaPlaybackRequiresUserGesture: false,
        transparentBackground: true,
        verticalScrollBarEnabled: true,
        javaScriptEnabled: true,
        useShouldInterceptAjaxRequest: true,

        supportZoom: true,
        // cacheEnabled: true,
        javaScriptCanOpenWindowsAutomatically: true,
      ),
      android: AndroidInAppWebViewOptions(
        useHybridComposition: true,
      ),
      ios: IOSInAppWebViewOptions(
        allowsInlineMediaPlayback: true,
      ));

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


  @override
  Widget build(BuildContext context) {
    CookieManager cookieManager = CookieManager.instance();
    Uri webViewUrl = Uri.parse("https://www.baidu.com");
    return Scaffold(
        appBar: null,
        body: SafeArea(
            child: InAppWebView(
          initialUrlRequest: URLRequest(
              headers: {'Cookie': 'name=test;age=12'},  //初始化时候的cookie
              url: webViewUrl),
          initialOptions: options,
          onLoadStop: (controller, url) async {
            List<Cookie> cookies =
                await cookieManager.getCookies(url: webViewUrl);
            await cookieManager.setCookie(
                url: webViewUrl,
                name: 'name',
                value: 'test',
                domain: ".baidu.com",
                path: "/");
            await cookieManager.setCookie(
                url: webViewUrl,
                name: 'age',
                value: '12',
                domain: ".baidu.com",
                path: "/");
          },
          onUpdateVisitedHistory: (controller, url, androidIsReload) async {
//这里监听是监听webview内部url的变化 ， 如果url是指定的可以加逻辑进行处理
            if (url.toString().contains('url') &&
                !url.toString().contains('url')) {
              List<Cookie> cookies =
                  await cookieManager.getCookies(url: webViewUrl);
              String cookieString = cookies
                  .map((cookie) => '${cookie.name}=${cookie.value}')
                  .join(';');
              debugPrint('cookieString: $cookieString');
              PreferencesDB.prefs.setString('cookie', cookieString);
              Navigator.pushNamed(context, widget.currentRoute);
            }
          },
        )));
  }
}