tapsell_mediation_legacy 是一个用于 Flutter 的广告中介插件，主要用于集成 Tapsell 广告平台。Tapsell 是一个中东地区的广告平台，提供多种广告格式，包括横幅广告、插页广告和视频广告。

以下是如何在 Flutter 项目中使用 tapsell_mediation_legacy 插件的基本步骤：

1. 添加依赖

首先，你需要在 pubspec.yaml 文件中添加 tapsell_mediation_legacy 插件的依赖。

dependencies:
  flutter:
    sdk: flutter
  tapsell_mediation_legacy: ^1.0.0  # 请根据实际情况使用最新版本

然后，运行 flutter pub get 来获取依赖。

2. 初始化 Tapsell

在你的 Flutter 应用程序启动时，首先需要初始化 Tapsell。通常可以在 main.dart 文件中进行初始化。

import 'package:flutter/material.dart';
import 'package:tapsell_mediation_legacy/tapsell_mediation_legacy.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await TapsellMediation.initialize('YOUR_TAPSELL_APP_KEY'); // 替换为你的 Tapsell App Key
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

3. 加载并显示广告

你可以使用 TapsellMediation 类来加载和显示不同类型的广告。以下是一些常见的广告类型示例：

插页广告 (Interstitial Ad)

import 'package:flutter/material.dart';
import 'package:tapsell_mediation_legacy/tapsell_mediation_legacy.dart';

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  String _interstitialAdId = 'YOUR_INTERSTITIAL_ZONE_ID'; // 替换为你的插页广告 Zone ID

  Future<void> _loadInterstitialAd() async {
    await TapsellMediation.loadInterstitialAd(_interstitialAdId);
  }

  Future<void> _showInterstitialAd() async {
    await TapsellMediation.showInterstitialAd(_interstitialAdId);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Tapsell Ads Demo'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            ElevatedButton(
              onPressed: _loadInterstitialAd,
              child: Text('Load Interstitial Ad'),
            ),
            ElevatedButton(
              onPressed: _showInterstitialAd,
              child: Text('Show Interstitial Ad'),
            ),
          ],
        ),
      ),
    );
  }
}

横幅广告 (Banner Ad)

import 'package:flutter/material.dart';
import 'package:tapsell_mediation_legacy/tapsell_mediation_legacy.dart';

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  String _bannerAdId = 'YOUR_BANNER_ZONE_ID'; // 替换为你的横幅广告 Zone ID

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Tapsell Ads Demo'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            TapsellMediationBannerAd(
              zoneId: _bannerAdId,
              adSize: TapsellMediationBannerAdSize.BANNER_320x50,
              onAdLoaded: () {
                print('Banner Ad Loaded');
              },
              onAdFailedToLoad: (error) {
                print('Banner Ad Failed to Load: $error');
              },
            ),
          ],
        ),
      ),
    );
  }
}

视频广告 (Rewarded Video Ad)

import 'package:flutter/material.dart';
import 'package:tapsell_mediation_legacy/tapsell_mediation_legacy.dart';

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  String _rewardedAdId = 'YOUR_REWARDED_ZONE_ID'; // 替换为你的视频广告 Zone ID

  Future<void> _loadRewardedAd() async {
    await TapsellMediation.loadRewardedAd(_rewardedAdId);
  }

  Future<void> _showRewardedAd() async {
    await TapsellMediation.showRewardedAd(_rewardedAdId);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Tapsell Ads Demo'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            ElevatedButton(
              onPressed: _loadRewardedAd,
              child: Text('Load Rewarded Ad'),
            ),
            ElevatedButton(
              onPressed: _showRewardedAd,
              child: Text('Show Rewarded Ad'),
            ),
          ],
        ),
      ),
    );
  }
}

4. 处理回调

你可以通过回调来处理广告的加载、显示、点击等事件。例如：

TapsellMediation.setInterstitialAdListener(
  onAdAvailable: (zoneId) {
    print('Interstitial Ad Available for zone: $zoneId');
  },
  onAdNotAvailable: (zoneId) {
    print('Interstitial Ad Not Available for zone: $zoneId');
  },
  onAdShown: (zoneId) {
    print('Interstitial Ad Shown for zone: $zoneId');
  },
  onAdClosed: (zoneId) {
    print('Interstitial Ad Closed for zone: $zoneId');
  },
);