use WebView in flutter web without using iframe

Question

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Is there a way to use WebView in Web Filter without the need for an iframe? Most of the methods available by iframe display website information and many sites also prohibit the use of iframe .

I'm looking for a way to use website information directly and without the need for iframe

I also tested the lower libraries and it didn't work

easy_web_view2

easy_web_view

webviewx

web_browser

in app webview

and ...

I dont have problem to show webview in Flutter webI have trouble displaying sites that have disabled the iFrame feature on their site .

Answer 1

you should use url_launcher plugin for launching a url

https://pub.dev/packages/url_launcher

Answer 2

你可以使用这个插件https://pub.dev/packages/easy_web_view它也支持网络

Answer 3

Use webview_flutter: ^2.0.13 (or latest version)

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

class WebviewScreen extends StatelessWidget {
  const WebviewScreen({Key? key, required this.url}) : super(key: key);
  final String url;

  @override
  Widget build(BuildContext context) {
    return const Scaffold(
      body: WebView(
        initialUrl: 'http://www.chartsaz.com/',
        javascriptMode: JavascriptMode.unrestricted,
      ),
    );
  }
}

set usesCleartextTraffic property to true in your AndroidManifest file, like below.

<application
....
android:usesCleartextTraffic="true"
....>

Answer 4

Please explain your question more so I can give proper answer.

Here I have tried to give overview if it can help you.

Have you tried flutter_inappwebview , here is the docs

They are providing different types of classes

Here is the Example

import 'dart:async';
import 'dart:collection';
import 'dart:convert';
import 'dart:io';
import 'dart:typed_data';
import 'package:flutter/material.dart';
import 'package:flutter_inappwebview/flutter_inappwebview.dart';
import 'package:url_launcher/url_launcher.dart';

Future main() async {
  WidgetsFlutterBinding.ensureInitialized();

  if (Platform.isAndroid) {
    await AndroidInAppWebViewController.setWebContentsDebuggingEnabled(true);
  }

  runApp(new MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => new _MyAppState();
}

class _MyAppState extends State<MyApp> {

  final GlobalKey webViewKey = GlobalKey();

  InAppWebViewController? webViewController;
  InAppWebViewGroupOptions options = InAppWebViewGroupOptions(
      crossPlatform: InAppWebViewOptions(
        useShouldOverrideUrlLoading: true,
        mediaPlaybackRequiresUserGesture: false,
      ),
      android: AndroidInAppWebViewOptions(
        useHybridComposition: true,
      ),
      ios: IOSInAppWebViewOptions(
        allowsInlineMediaPlayback: true,
      ));

  late PullToRefreshController pullToRefreshController;
  String url = "";
  double progress = 0;
  final urlController = TextEditingController();

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

    pullToRefreshController = PullToRefreshController(
      options: PullToRefreshOptions(
        color: Colors.blue,
      ),
      onRefresh: () async {
        if (Platform.isAndroid) {
          webViewController?.reload();
        } else if (Platform.isIOS) {
          webViewController?.loadUrl(
              urlRequest: URLRequest(url: await webViewController?.getUrl()));
        }
      },
    );
  }

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
          appBar: AppBar(title: Text("Official InAppWebView website")),
          body: SafeArea(
              child: Column(children: <Widget>[
                TextField(
                  decoration: InputDecoration(
                      prefixIcon: Icon(Icons.search)
                  ),
                  controller: urlController,
                  keyboardType: TextInputType.url,
                  onSubmitted: (value) {
                    var url = Uri.parse(value);
                    if (url.scheme.isEmpty) {
                      url = Uri.parse("https://www.google.com/search?q=" + value);
                    }
                    webViewController?.loadUrl(
                        urlRequest: URLRequest(url: url));
                  },
                ),
                Expanded(
                  child: Stack(
                    children: [
                      InAppWebView(
                        key: webViewKey,
                        initialUrlRequest:
                        URLRequest(url: Uri.parse("https://inappwebview.dev/")),
                        initialOptions: options,
                        pullToRefreshController: pullToRefreshController,
                        onWebViewCreated: (controller) {
                          webViewController = controller;
                        },
                        onLoadStart: (controller, url) {
                          setState(() {
                            this.url = url.toString();
                            urlController.text = this.url;
                          });
                        },
                        androidOnPermissionRequest: (controller, origin, resources) async {
                          return PermissionRequestResponse(
                              resources: resources,
                              action: PermissionRequestResponseAction.GRANT);
                        },
                        shouldOverrideUrlLoading: (controller, navigationAction) async {
                          var uri = navigationAction.request.url!;

                          if (![ "http", "https", "file", "chrome",
                            "data", "javascript", "about"].contains(uri.scheme)) {
                            if (await canLaunch(url)) {
                              // Launch the App
                              await launch(
                                url,
                              );
                              // and cancel the request
                              return NavigationActionPolicy.CANCEL;
                            }
                          }

                          return NavigationActionPolicy.ALLOW;
                        },
                        onLoadStop: (controller, url) async {
                          pullToRefreshController.endRefreshing();
                          setState(() {
                            this.url = url.toString();
                            urlController.text = this.url;
                          });
                        },
                        onLoadError: (controller, url, code, message) {
                          pullToRefreshController.endRefreshing();
                        },
                        onProgressChanged: (controller, progress) {
                          if (progress == 100) {
                            pullToRefreshController.endRefreshing();
                          }
                          setState(() {
                            this.progress = progress / 100;
                            urlController.text = this.url;
                          });
                        },
                        onUpdateVisitedHistory: (controller, url, androidIsReload) {
                          setState(() {
                            this.url = url.toString();
                            urlController.text = this.url;
                          });
                        },
                        onConsoleMessage: (controller, consoleMessage) {
                          print(consoleMessage);
                        },
                      ),
                      progress < 1.0
                          ? LinearProgressIndicator(value: progress)
                          : Container(),
                    ],
                  ),
                ),
                ButtonBar(
                  alignment: MainAxisAlignment.center,
                  children: <Widget>[
                    ElevatedButton(
                      child: Icon(Icons.arrow_back),
                      onPressed: () {
                        webViewController?.goBack();
                      },
                    ),
                    ElevatedButton(
                      child: Icon(Icons.arrow_forward),
                      onPressed: () {
                        webViewController?.goForward();
                      },
                    ),
                    ElevatedButton(
                      child: Icon(Icons.refresh),
                      onPressed: () {
                        webViewController?.reload();
                      },
                    ),
                  ],
                ),
              ]))),
    );
  }
}

You can also check different example on website as per your requirement.

Answer 5

我希望这个包（ webview_flutter_plus ）可以帮助你

Answer 6

The flutter web directly not support any web view to load url. You have to use HtmlElementView to load URL.

import 'dart:ui' as ui;

@override
  void initState() {
    super.initState();
    
    ui.platformViewRegistry.registerViewFactory('openstreetmap', (int viewId) {
      return IFrameElement()
        ..style.width = '100%'
        ..style.height = '100%'
        ..src = 'https://www.openstreetmap.org/export/embed.html?bbox=-0.004017949104309083%2C51.47612752641776%2C0.00030577182769775396%2C51.478569861898606&layer=mapnik
'
        ..style.border = 'none';
    });
  }

  @override
  Widget build(BuildContext context) {
    return HtmlElementView(viewType: 'openstreetmap');
  }