Баннер

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

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

  @override
  State<BannerPage> createState() => _BannerPageState();
}

class _BannerPageState extends State<BannerPage> {
  static const _tag = 'Banner';
  static const _adUnitId = 'demo-banner-yandex';

  BannerAd? _banner;
  StreamSubscription<BannerAdLoadState>? _loadSubscription;
  StreamSubscription<BannerAdEvent>? _eventSubscription;
  String _status = 'Loading...';

  @override
  void didChangeDependencies() {
    super.didChangeDependencies();
    if (_banner == null) {
      _createBanner();
    }
  }

  @override
  void dispose() {
    _loadSubscription?.cancel();
    _eventSubscription?.cancel();
    _banner?.destroy();
    super.dispose();
  }

  void _createBanner() {
    final size = MediaQuery.of(context).size;
    final screenWidth = size.width.round();
    final maxHeight = (size.height / 3).round();

    final banner = BannerAd(
      adSize: BannerAdSize.inline(width: screenWidth, maxHeight: maxHeight),
    );

    _loadSubscription?.cancel();
    _eventSubscription?.cancel();

    _loadSubscription = banner.loadStateStream.listen((state) {
      if (state is BannerAdLoadStateLoaded) {
        debugPrint('[$_tag] onAdLoaded');
        if (mounted) setState(() => _status = 'Loaded');
      } else if (state is BannerAdLoadStateError) {
        debugPrint('[$_tag] onAdFailedToLoad: ${state.error.description}');
        if (mounted) setState(() => _status = 'Error: ${state.error.description}');
      }
    });

    _eventSubscription = banner.events.listen((event) {
      if (event is BannerAdClickedEvent) {
        debugPrint('[$_tag] onAdClicked');
      } else if (event is BannerAdImpressionEvent) {
        debugPrint('[$_tag] onAdImpression');
      }
    });

    banner.load(AdRequest(adUnitId: _adUnitId));
    _banner = banner;
    setState(() {});
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Banner')),
      body: Column(
        children: [
          Padding(
            padding: const EdgeInsets.all(16),
            child: Text(_status),
          ),
          const Spacer(),
          if (_banner != null)
            SizedBox(
              width: double.infinity,
              child: AdWidget(bannerAd: _banner!),
            ),
        ],
      ),
    );
  }
}

[Integration] Ad type Banner was integrated successfully