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// Copyright 2022 The Flutter Authors. All rights reserved.

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file.

import 'package:material_ui/material_ui.dart';

import 'package:webview_flutter/webview_flutter.dart';

class WebViewStack extends StatefulWidget {

const WebViewStack({required this.controller, super.key});

final WebViewController controller;

@override

State<WebViewStack> createState() => _WebViewStackState();

}

class _WebViewStackState extends State<WebViewStack> {

var loadingPercentage = 0;

@override

void initState() {

super.initState();

widget.controller.setNavigationDelegate(

NavigationDelegate(

onPageStarted: (url) {

setState(() {

loadingPercentage = 0;

});

},

onProgress: (progress) {

setState(() {

loadingPercentage = progress;

});

},

onPageFinished: (url) {

setState(() {

loadingPercentage = 100;

});

},

),

);

}

@override

Widget build(BuildContext context) {

return Stack(

children: [

WebViewWidget(controller: widget.controller),

if (loadingPercentage < 100)

LinearProgressIndicator(value: loadingPercentage / 100.0),

],

);

}

}