Реклама с вознаграждением

import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:yandex_mobileads/mobile_ads.dart';

class RewardedPage extends StatefulWidget {
  const RewardedPage({super.key});

  @override
  State<RewardedPage> createState() => _RewardedPageState();
}

class _RewardedPageState extends State<RewardedPage> {
  static const _tag = 'Rewarded';
  static const _adUnitId = 'demo-rewarded-yandex';

  RewardedAdLoader? _loader;
  RewardedAd? _ad;
  String _status = 'Initializing...';
  String _reward = '';

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

  @override
  void dispose() {
    _ad?.destroy();
    super.dispose();
  }

  Future<void> _init() async {
    setState(() => _status = 'Creating loader...');
    
    _loader = await RewardedAdLoader.create(
      onAdLoaded: (ad) {
        debugPrint('[$_tag] onAdLoaded');
        if (!mounted) { ad.destroy(); return; }
        _ad = ad;
        setState(() => _status = 'Showing...');
        _show();
      },
      onAdFailedToLoad: (error) {
        debugPrint('[$_tag] onAdFailedToLoad: ${error.description}');
        if (mounted) setState(() => _status = 'Error: ${error.description}');
      },
    );

    setState(() => _status = 'Loading ad...');
    
    await _loader!.loadAd(
      adRequestConfiguration: AdRequestConfiguration(adUnitId: _adUnitId),
    );
  }

  Future<void> _show() async {
    final ad = _ad;
    if (ad == null) return;

    ad.setAdEventListener(
      eventListener: RewardedAdEventListener(
        onAdShown: () => debugPrint('[$_tag] onAdShown'),
        onAdDismissed: () {
          debugPrint('[$_tag] onAdDismissed');
          if (mounted) setState(() => _status = _reward.isEmpty ? 'Closed' : 'Reward received!');
        },
        onAdClicked: () => debugPrint('[$_tag] onAdClicked'),
        onAdFailedToShow: (error) {
          debugPrint('[$_tag] onAdFailedToShow: ${error.description}');
          if (mounted) setState(() => _status = 'Show error: ${error.description}');
        },
        onAdImpression: (ImpressionData impressionData) =>
            debugPrint('[$_tag] onAdImpression: $impressionData'),
        onRewarded: (reward) {
          debugPrint('[$_tag] onRewarded: ${reward.amount} ${reward.type}');
          if (mounted) setState(() => _reward = '+${reward.amount} ${reward.type}');
        },
      ),
    );

    await ad.show();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Rewarded')),
      body: Center(
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            if (_reward.isEmpty && !_status.contains('Error') && !_status.contains('Closed'))
              const CircularProgressIndicator(),
            const SizedBox(height: 16),
            Text(_status),
            if (_reward.isNotEmpty) ...[
              const SizedBox(height: 16),
              Text(_reward, style: const TextStyle(color: Colors.green, fontSize: 24, fontWeight: FontWeight.bold)),
            ],
          ],
        ),
      ),
    );
  }
}

[Integration] Ad type rewarded was integrated successfully