tapsell_mediation_admob 是一个用于在 Flutter 应用中集成 Tapsell 和 AdMob 广告中介的插件。它允许你通过 AdMob 中介平台来展示 Tapsell 广告。以下是如何使用 tapsell_mediation_admob 插件的详细步骤：

1. 添加依赖

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

dependencies:
  flutter:
    sdk: flutter
  tapsell_mediation_admob: ^1.0.0  # 请使用最新版本

然后运行 flutter pub get 来获取依赖。

2. 初始化插件

在你的 Flutter 应用中初始化 tapsell_mediation_admob 插件。通常，你可以在 main.dart 文件中进行初始化：

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

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  
  // 初始化 Tapsell Mediation AdMob
  await TapsellMediationAdmob.initialize(
    tapsellAppKey: 'YOUR_TAPSELL_APP_KEY',
    admobAppId: 'YOUR_ADMOB_APP_ID',
  );

  runApp(MyApp());
}

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

3. 加载和展示广告

你可以使用 tapsell_mediation_admob 插件来加载和展示不同类型的广告，例如横幅广告、插页式广告和激励视频广告。

横幅广告

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

class BannerAdExample extends StatefulWidget {
  [@override](/user/override)
  _BannerAdExampleState createState() => _BannerAdExampleState();
}

class _BannerAdExampleState extends State<BannerAdExample> {
  BannerAd? _bannerAd;

  [@override](/user/override)
  void initState() {
    super.initState();
    _loadBannerAd();
  }

  void _loadBannerAd() {
    _bannerAd = BannerAd(
      adUnitId: 'YOUR_ADMOB_BANNER_AD_UNIT_ID',
      size: AdSize.banner,
      request: AdRequest(),
      listener: BannerAdListener(
        onAdLoaded: (Ad ad) {
          print('Banner ad loaded.');
        },
        onAdFailedToLoad: (Ad ad, LoadAdError error) {
          print('Banner ad failed to load: $error');
        },
      ),
    )..load();
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Banner Ad Example'),
      ),
      body: Center(
        child: _bannerAd != null
            ? AdWidget(ad: _bannerAd!)
            : Text('Loading banner ad...'),
      ),
    );
  }

  [@override](/user/override)
  void dispose() {
    _bannerAd?.dispose();
    super.dispose();
  }
}

插页式广告

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

class InterstitialAdExample extends StatefulWidget {
  [@override](/user/override)
  _InterstitialAdExampleState createState() => _InterstitialAdExampleState();
}

class _InterstitialAdExampleState extends State<InterstitialAdExample> {
  InterstitialAd? _interstitialAd;

  [@override](/user/override)
  void initState() {
    super.initState();
    _loadInterstitialAd();
  }

  void _loadInterstitialAd() {
    InterstitialAd.load(
      adUnitId: 'YOUR_ADMOB_INTERSTITIAL_AD_UNIT_ID',
      request: AdRequest(),
      adLoadCallback: InterstitialAdLoadCallback(
        onAdLoaded: (InterstitialAd ad) {
          _interstitialAd = ad;
          _interstitialAd?.show();
        },
        onAdFailedToLoad: (LoadAdError error) {
          print('Interstitial ad failed to load: $error');
        },
      ),
    );
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Interstitial Ad Example'),
      ),
      body: Center(
        child: ElevatedButton(
          onPressed: () {
            if (_interstitialAd != null) {
              _interstitialAd?.show();
            } else {
              print('Interstitial ad is not ready yet.');
            }
          },
          child: Text('Show Interstitial Ad'),
        ),
      ),
    );
  }

  [@override](/user/override)
  void dispose() {
    _interstitialAd?.dispose();
    super.dispose();
  }
}

激励视频广告

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

class RewardedAdExample extends StatefulWidget {
  [@override](/user/override)
  _RewardedAdExampleState createState() => _RewardedAdExampleState();
}

class _RewardedAdExampleState extends State<RewardedAdExample> {
  RewardedAd? _rewardedAd;

  [@override](/user/override)
  void initState() {
    super.initState();
    _loadRewardedAd();
  }

  void _loadRewardedAd() {
    RewardedAd.load(
      adUnitId: 'YOUR_ADMOB_REWARDED_AD_UNIT_ID',
      request: AdRequest(),
      rewardedAdLoadCallback: RewardedAdLoadCallback(
        onAdLoaded: (RewardedAd ad) {
          _rewardedAd = ad;
        },
        onAdFailedToLoad: (LoadAdError error) {
          print('Rewarded ad failed to load: $error');
        },
      ),
    );
  }

  void _showRewardedAd() {
    if (_rewardedAd != null) {
      _rewardedAd?.show(
        onUserEarnedReward: (RewardedAd ad, RewardItem reward) {
          print('User earned reward: ${reward.amount} ${reward.type}');
        },
      );
    } else {
      print('Rewarded ad is not ready yet.');
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Rewarded Ad Example'),
      ),
      body: Center(
        child: ElevatedButton(
          onPressed: _showRewardedAd,
          child: Text('Show Rewarded Ad'),
        ),
      ),
    );
  }

  [@override](/user/override)
  void dispose() {
    _rewardedAd?.dispose();
    super.dispose();
  }
}