300 lines
9.4 KiB
Dart
300 lines
9.4 KiB
Dart
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import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:video_player/video_player.dart';
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import 'vast_webview_player.dart';
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/// Example widget displaying VAST ads using WebView and vast-player library.
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class VastWebViewPage extends StatefulWidget {
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/// Constructs a [VastWebViewPage].
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const VastWebViewPage({super.key});
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@override
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State<VastWebViewPage> createState() => _VastWebViewPageState();
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}
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class _VastWebViewPageState extends State<VastWebViewPage>
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with WidgetsBindingObserver {
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// Last state received in `didChangeAppLifecycleState`.
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AppLifecycleState _lastLifecycleState = AppLifecycleState.resumed;
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// Whether the widget should be displaying the content video. The content
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// player is hidden while Ads are playing.
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bool _shouldShowContentVideo = false;
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// Контроллер для ввода URL
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late final TextEditingController _urlController = TextEditingController()
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..text = _defaultVastUrl;
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static const _defaultVastUrl =
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'https://mediatoday.ru/c/ads.xml?pid=10548&vr=1&rid=5432234&dl=https://google.com';
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// VAST URL для загрузки рекламы
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String _vastUrl = _defaultVastUrl;
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// Состояние рекламы
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bool _isAdPlaying = false;
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String _adStatus = '';
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// Ключ для принудительного пересоздания WebView
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Key _webViewKey = UniqueKey();
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@override
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void initState() {
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super.initState();
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// Adds this instance as an observer for `AppLifecycleState` changes.
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WidgetsBinding.instance.addObserver(this);
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// Устанавливаем начальный URL в контроллер
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_urlController.text = _vastUrl;
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}
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void _onAdComplete() {
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setState(() {
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_shouldShowContentVideo = true;
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_isAdPlaying = false;
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_adStatus = 'Реклама завершена';
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});
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}
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void _onAdError() {
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print('Ad error occurred in VastWebViewPage');
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setState(() {
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_shouldShowContentVideo = true;
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_isAdPlaying = false;
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_adStatus = 'Ошибка рекламы - проверьте URL и сетевые настройки';
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});
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}
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void _onAdClick() {
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setState(() {
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_adStatus = 'Клик по рекламе - открываем ссылку...';
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});
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print('Ad clicked - opening link in browser');
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// Показываем уведомление пользователю
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('Открываем ссылку рекламы в браузере'),
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duration: Duration(seconds: 2),
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backgroundColor: Colors.blue,
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),
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);
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}
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void _onAdStarted() {
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setState(() {
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_isAdPlaying = true;
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_adStatus = 'Реклама началась';
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});
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}
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void _onAdStopped() {
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setState(() {
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_shouldShowContentVideo = true;
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_isAdPlaying = false;
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_adStatus = 'Реклама остановлена пользователем';
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});
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}
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void _onAdLoaded() {
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setState(() {
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_adStatus = 'Реклама загружена';
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});
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}
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void _onAdVideoStart() {
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setState(() {
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_adStatus = 'Видео рекламы началось';
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});
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}
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void _onAdVideoComplete() {
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setState(() {
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_adStatus = 'Видео рекламы завершено';
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});
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}
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void _onAdImpression() {
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setState(() {
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_adStatus = 'Показ рекламы зафиксирован';
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});
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}
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void _loadAdWithCustomUrl() {
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final newUrl = _urlController.text.trim();
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if (newUrl.isNotEmpty) {
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setState(() {
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_vastUrl = newUrl;
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_shouldShowContentVideo = false;
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_adStatus = 'Загрузка рекламы...';
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_isAdPlaying = false;
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// Создаем новый ключ для принудительного пересоздания WebView
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_webViewKey = UniqueKey();
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});
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print('Loading new VAST ad from URL: $newUrl');
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} else {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('Пожалуйста, введите URL'),
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backgroundColor: Colors.red,
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),
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);
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}
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}
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@override
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void didChangeAppLifecycleState(AppLifecycleState state) {
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switch (state) {
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case AppLifecycleState.resumed:
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if (!_shouldShowContentVideo) {
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// Возобновляем рекламу
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}
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case AppLifecycleState.inactive:
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// Пауза рекламы
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if (!_shouldShowContentVideo &&
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_lastLifecycleState == AppLifecycleState.resumed) {
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// Пауза рекламы
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}
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case AppLifecycleState.hidden:
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case AppLifecycleState.paused:
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case AppLifecycleState.detached:
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}
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_lastLifecycleState = state;
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}
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@override
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void dispose() {
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_urlController.dispose();
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WidgetsBinding.instance.removeObserver(this);
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: const Text('VAST WebView Player'),
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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),
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body: Column(
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spacing: 20,
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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// Поле ввода URL
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Container(
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: Colors.grey[100],
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borderRadius: BorderRadius.circular(8),
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border: Border.all(color: Colors.grey[300]!),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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mainAxisSize: MainAxisSize.min,
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children: [
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const Text(
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'URL для загрузки VAST рекламы:',
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style: TextStyle(fontWeight: FontWeight.bold, fontSize: 16),
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),
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const SizedBox(height: 12),
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TextField(
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controller: _urlController,
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decoration: const InputDecoration(
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hintText: 'Введите URL VAST рекламы...',
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border: OutlineInputBorder(),
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contentPadding: EdgeInsets.symmetric(
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horizontal: 12,
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vertical: 8,
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),
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),
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style: const TextStyle(fontSize: 14),
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),
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const SizedBox(height: 12),
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Row(
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children: [
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Expanded(
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child: ElevatedButton.icon(
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onPressed: _loadAdWithCustomUrl,
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icon: const Icon(Icons.download),
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label: const Text('Загрузить рекламу'),
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.blue,
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foregroundColor: Colors.white,
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),
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),
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),
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const SizedBox(width: 12),
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ElevatedButton.icon(
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onPressed: () {
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_urlController.text = _defaultVastUrl;
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_loadAdWithCustomUrl();
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},
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icon: const Icon(Icons.refresh),
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label: const Text('Сброс'),
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.grey,
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foregroundColor: Colors.white,
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),
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),
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],
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),
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],
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),
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),
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// Статус рекламы
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if (_adStatus.isNotEmpty)
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Container(
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padding: const EdgeInsets.all(12),
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decoration: BoxDecoration(
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color: Colors.blue.withOpacity(0.1),
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borderRadius: BorderRadius.circular(8),
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border: Border.all(color: Colors.blue),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(
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_isAdPlaying ? Icons.play_arrow : Icons.info,
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color: Colors.blue,
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),
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const SizedBox(width: 8),
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Expanded(
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child: Text(
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_adStatus,
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style: const TextStyle(
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color: Colors.blue,
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fontWeight: FontWeight.w500,
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),
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),
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),
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],
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),
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),
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// Видео контейнер
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Expanded(
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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child: VastWebViewPlayer(
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key: _webViewKey,
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vastUrl: _vastUrl,
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onAdComplete: _onAdComplete,
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onAdError: _onAdError,
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onAdClick: _onAdClick,
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onAdStarted: _onAdStarted,
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onAdStopped: _onAdStopped,
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onAdLoaded: _onAdLoaded,
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onAdVideoStart: _onAdVideoStart,
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onAdVideoComplete: _onAdVideoComplete,
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onAdImpression: _onAdImpression,
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),
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),
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),
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],
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),
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);
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}
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}
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