Flutter微信游戏（Wegame）API集成插件mpflutter_wegame_api的使用

插件介绍

mpflutter_wegame_api 是一个专门为 MPFlutter 2.0 开发的微信游戏 API 封装库。通过该插件，开发者可以方便地在 Flutter 应用中集成微信游戏功能，例如分享、登录等。

以下是插件的基本使用方法及完整示例代码。

使用步骤

1. 添加依赖

在 pubspec.yaml 文件中添加插件依赖：

dependencies:
  mpflutter_wegame_api: ^版本号

运行以下命令以安装依赖：

flutter pub get

2. 初始化插件

在应用启动时初始化插件：

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

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  MpflutterWeGameApi.init(appId: 'your-wechat-app-id'); // 替换为你的微信小程序 App ID
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: WeGameHomePage(),
    );
  }
}

3. 实现微信游戏功能

分享到微信朋友圈

Future<void> shareToWeChatTimeline() async {
  try {
    await MpflutterWeGameApi.shareToWeChatTimeline(
      title: '快来玩我的小游戏！',
      imageUrl: 'https://example.com/share-image.png', // 替换为实际图片 URL
      query: 'game_id=12345', // 可选参数
    );
    print('分享成功');
  } catch (e) {
    print('分享失败: $e');
  }
}

登录微信并获取用户信息

Future<void> loginWithWeChat() async {
  try {
    final result = await MpflutterWeGameApi.loginWithWeChat();
    if (result.success) {
      print('登录成功: ${result.data}');
    } else {
      print('登录失败: ${result.message}');
    }
  } catch (e) {
    print('登录异常: $e');
  }
}

完整示例代码

以下是一个完整的示例代码，展示了如何在 Flutter 中集成微信游戏 API：

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

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  MpflutterWeGameApi.init(appId: 'your-wechat-app-id'); // 替换为你的微信小程序 App ID
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: WeGameHomePage(),
    );
  }
}

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

class _WeGameHomePageState extends State<WeGameHomePage> {
  String _loginResult = '未登录';
  String _shareResult = '未分享';

  Future<void> _handleLogin() async {
    final result = await MpflutterWeGameApi.loginWithWeChat();
    setState(() {
      _loginResult = result.success ? '登录成功' : '登录失败: ${result.message}';
    });
  }

  Future<void> _handleShare() async {
    try {
      await MpflutterWeGameApi.shareToWeChatTimeline(
        title: '快来玩我的小游戏！',
        imageUrl: 'https://example.com/share-image.png', // 替换为实际图片 URL
        query: 'game_id=12345', // 可选参数
      );
      setState(() {
        _shareResult = '分享成功';
      });
    } catch (e) {
      setState(() {
        _shareResult = '分享失败: $e';
      });
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('微信游戏 API 示例'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            ElevatedButton(
              onPressed: _handleLogin,
              child: Text('登录微信'),
            ),
            SizedBox(height: 20),
            Text(_loginResult),
            SizedBox(height: 20),
            ElevatedButton(
              onPressed: _handleShare,
              child: Text('分享到微信朋友圈'),
            ),
            SizedBox(height: 20),
            Text(_shareResult),
          ],
        ),
      ),
    );
  }
}