tablet-app/lib/Screens/Web/web_view.dart

import 'dart:convert';

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

class WebView extends StatefulWidget {
  final SectionDTO? section;
  WebView({this.section});

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

class _WebViewWidget extends State<WebView> {
  //WebView _webView;
  WebDTO webDTO = WebDTO();
  WebViewController? controller;

  @override
  void initState() {
    print(widget.section!.data);
    webDTO = WebDTO.fromJson(jsonDecode(widget.section!.data!))!;
    print(webDTO);

    controller = WebViewController()
      ..setJavaScriptMode(JavaScriptMode.unrestricted)
      ..setBackgroundColor(const Color(0x00000000))
      ..setNavigationDelegate(
        NavigationDelegate(
          onProgress: (int progress) {
            // Update loading bar.
          },
          onPageStarted: (String url) {},
          onPageFinished: (String url) {},
          onWebResourceError: (WebResourceError error) {},
          onNavigationRequest: (NavigationRequest request) {
            if (request.url != webDTO.source_) {
              print('blocking navigation to $request}');
              return NavigationDecision.prevent;
            }
            return NavigationDecision.navigate;
          },
        ),
      )
      ..loadRequest(Uri.parse(webDTO.source_!));

    super.initState();
    /*_webView = WebView(
      initialUrl: webDTO.source_, //"https://my.matterport.com/show/?m=k8bvdezfHbT"
      javascriptMode: JavascriptMode.unrestricted,
      navigationDelegate: (NavigationRequest request) {
        print(request.url);
        print(webDTO.source_);
        if (request.url != webDTO.source_) {
          print('blocking navigation to $request}');
          return NavigationDecision.prevent;
        }
        print('allowing navigation to $request');
        return NavigationDecision.navigate;
      }
    );*/
  }

  @override
  void dispose() {
    //_webView = null;
    super.dispose();
  }

  @override
  Widget build(BuildContext context) => webDTO.source_ != null && webDTO.source_!.length > 0 ? WebViewWidget(controller: controller!) : Center(child: Text("La page internet ne peut pas être affichée, l'url est incorrecte ou vide"));
} //_webView