如何在带有动态 url 的 IOS 中使用 WebView？

如何解决如何在带有动态 url 的 IOS 中使用 WebView？

我有一个动态 html url ('https://...../tokens,headers etc./example.html')。我在 url 中放置了 cookie 设置。这是我的 webview 类，它在 Android 上运行良好。但在 IOS 上，只有加载小部件处于活动状态。网络视图不起作用。控制台上没有错误或警告。我还将以下代码添加到 info.plist：

<key>io.flutter.embedded_views_preview</key><true/>
<key>NSAppTransportSecurity</key>
    <dict>
        <key>NSAllowsArbitraryLoads</key>
        <true/>
        <key>NSAllowsArbitraryLoadsInWebContent</key>
        <true/>
    </dict>

我的 webview 小部件仍然无法正常工作。我尝试了许多 webview 插件，但它们都不适用于我的问题。如果我使用任何其他网址，它就可以正常工作。一切都在颤振医生上更新。 Xcode 12.3 版。 这是使用inappwebview插件的代码；

class MyWebView extends StatefulWidget {
  final String title;
  final String selectedUrl;

  MyWebView({
    @required this.title,@required this.selectedUrl,});

  @override
  _MyWebViewState createState() => _MyWebViewState();
}

class _MyWebViewState extends State<MyWebView> {
  num position = 1;
  String token;
  String tenant;
  String roleID;
  String path;
  /*final Completer<WebViewController> _controller =
      Completer<WebViewController>();
*/
  final flutterWebviewPlugin = new FlutterWebviewPlugin();
  final Set<JavascriptChannel> jsChannels = [
    JavascriptChannel(
        name: 'Print',onMessageReceived: (JavascriptMessage message) {
          print(message.message);
        }),].toSet();

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      await _getTenant().then((v) {
        setState(() {
          this.tenant = v;
        });
      });
    });
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      await _getToken().then((v) {
        setState(() {
          this.token = v;
        });
      });
    });
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      await _getRoleId().then((v) {
        setState(() {
          this.roleID = v;
        });
      });
    });
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      await _getDefaultPath().then((v) {
        setState(() {
          this.path = v;
        });
      });
    });
  }

  @override
  Widget build(BuildContext context) {
    print('url ->>> ' + widget.selectedUrl);
    return new MaterialApp(
      routes: {
        "/": (_) => new WebviewScaffold(
              headers: {
                'tenant': this.tenant,'ORA_BIPS_NQID': this.token,'roles': this.roleID
              },url: widget.selectedUrl,javascriptChannels: jsChannels,appBar: new AppBar(
                leading: IconButton(
                  icon: Icon(Icons.arrow_back,color: Colors.white),onPressed: () => Navigator.of(context).pop(),),backgroundColor: Colors.grey,title: new Text("Vispeahen"),withZoom: true,withLocalStorage: true,hidden: true,initialChild: Container(
                color: Colors.white,child: const Center(
                  child: CircularProgressIndicator(),},);
  }
}

这是 Flutter 的 WebView 插件；

class MyWebView extends StatefulWidget {
  final String title;
  final String selectedUrl;

  MyWebView({
    @required this.title,});

  @override
  _MyWebViewState createState() => _MyWebViewState();
}

class _MyWebViewState extends State<MyWebView> {
  num position = 1;
  final Completer<WebViewController> _controller =
      Completer<WebViewController>();

  @override
  void initState() {
    super.initState();
    WebView.platform = SurfaceAndroidWebView();
  }

  @override
  Widget build(BuildContext context) {
    print('url ->>> ' + widget.selectedUrl);
    return Scaffold(
        appBar: AppBar(
          backgroundColor: Colors.grey,title: Text(widget.title),body: IndexedStack(
          index: position,children: <Widget>[
            WebView(
                initialUrl: widget.selectedUrl,onPageStarted: (value) {
                  setState(() {
                    position = 1;
                  });
                },onPageFinished: (value) {
                  setState(() {
                    position = 0;
                  });
                },javascriptMode: JavascriptMode.unrestricted,onWebViewCreated: (WebViewController webViewController) {
                  _controller.complete(webViewController);
                },navigationDelegate: (NavigationRequest nav) {
                  print(
                      'SAW REQ TO LOAD: ${nav.url}\nIN MAIN FRAME? ${nav.isForMainFrame}');
                  return NavigationDecision.navigate;
                }),Container(
              child: Center(child: CircularProgressIndicator()),],));
  }
}

它给了我同样的结果。