Append the parameter to the URL depending on the platform:
?idfa=...?gaid=...import 'dart:io';
import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';
import 'package:url_launcher/url_launcher.dart';
void main() {
WidgetsFlutterBinding.ensureInitialized();
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Offerwall Demo',
theme: ThemeData(primarySwatch: Colors.blue),
home: const OfferwallPage(),
);
}
}
class OfferwallPage extends StatefulWidget {
const OfferwallPage({super.key});
@override
State<OfferwallPage> createState() => _OfferwallPageState();
}
class _OfferwallPageState extends State<OfferwallPage> {
late final WebViewController _controller;
final String offerwallUrl = Uri.https(
'sdk.mychips.io',
'/content',
{
'content_id': '28617c7e-0178-4b89-b258-74bcf171e',
'user_id': '5d41402abc4b2a76b9719d911017c592',
'gaid': '9b2f0c84-17a3-4f19-9c51-3e8b0a7c3c91',
'age': '27',
'gender': 'f',
'webview': '1',
},
).toString();
bool _isLoading = true;
@override
void initState() {
super.initState();
_controller = WebViewController()
..setJavaScriptMode(JavaScriptMode.unrestricted)
..clearCache()
..clearLocalStorage()
..setBackgroundColor(const Color(0x00000000))
..setNavigationDelegate(
NavigationDelegate(
onPageStarted: (String url) {
setState(() => _isLoading = true);
},
onPageFinished: (String url) {
setState(() => _isLoading = false);
},
onNavigationRequest: (NavigationRequest request) async {
final url = request.url;
if (url.startsWith('mychips://')) {
_syncRewardFromUri(url);
return NavigationDecision.prevent;
}
if ((url.startsWith('https://api.mychips.io') && url.contains('redirect'))) {
final uri = Uri.parse(url);
if (await canLaunchUrl(uri)) {
await launchUrl(uri, mode: LaunchMode.externalApplication);
}
return NavigationDecision.prevent;
}
return NavigationDecision.navigate;
},
onWebResourceError: (WebResourceError error) {
_controller.loadHtmlString(
'<html><body><h3>Failed to load. Please try again later.</h3></body></html>',
);
},
),
)
..loadRequest(Uri.parse(offerwallUrl));
}
void _syncRewardFromUri(String uriString) {
final uri = Uri.parse(uriString);
final amount = uri.queryParameters['amount'];
final currency = uri.queryParameters['currency'];
if (amount != null && currency != null) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('You received $amount $currency')),
);
}
}
@override
Widget build(BuildContext context) {
return WillPopScope(
onWillPop: () async {
final currentUrl = await _controller.currentUrl() ?? '';
if (currentUrl.contains('/home')) {
return true;
}
if (await _controller.canGoBack()) {
_controller.goBack();
return false;
}
return true;
},
child: Scaffold(
appBar: AppBar(
title: const Text('Offerwall'),
leading: IconButton(
icon: const Icon(Icons.arrow_back),
onPressed: () async {
if (await _controller.canGoBack()) {
_controller.goBack();
} else {
Navigator.of(context).pop();
}
},
),
),
body: Stack(
children: [
WebViewWidget(controller: _controller),
if (_isLoading)
const Center(child: CircularProgressIndicator()),
],
),
),
);
}
}