Flutter模拟内购插件in_app_faker的使用

发布于 1周前 作者 htzhanglong 来自 Flutter

Flutter模拟内购插件in_app_faker的使用

在本教程中,我们将学习如何在Flutter项目中使用in_app_faker插件来模拟内购功能。in_app_faker插件可以帮助开发者在开发阶段测试内购功能,而无需真正进行支付。

InAppFaker

首先,我们需要导入in_app_faker包并设置一些基本配置。

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

void main() {
  _test();
  runApp(const MyApp());
}

void _test() {
  // CUSTOM
  final usersJson = UserFaker(
    // photos: [], // 可选参数
    // domains: [], // 可选参数
    // usernames: [], // 可选参数
    // countries: [], // 可选参数
  ).generate(100);
  print(usersJson);

  // INSTANCE
  for (int i = 0; i < 100; i++) {
    print(UserFaker.username);
    print(UserFaker.email);
    print(UserFaker.country);
    print(UserFaker.photoUrl);
  }
}

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应用中使用in_app_faker插件。

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

void main() {
  _test();
  runApp(const MyApp());
}

void _test(){
  // CUSTOM
  final usersJson = UserFaker(
    // photos: [], // 可选参数
    // domains: [], // 可选参数
    // usernames: [], // 可选参数
    // countries: [], // 可选参数
  ).generate(100);
  print(usersJson);

  // INSTANCE
  for (int i = 0; i<100;i++){
    print(UserFaker.username);
    print(UserFaker.email);
    print(UserFaker.country);
    print(UserFaker.photoUrl);
  }
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  [@override](/user/override)
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      // This call to setState tells the Flutter framework that something has
      // changed in this State, which causes it to rerun the build method below
      // so that the display can reflect the updated values. If we changed
      // _counter without calling setState(), then the build method would not be
      // called again, and so nothing would appear to happen.
      _counter++;
    });
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
      appBar: AppBar(
        // TRY THIS: Try changing the color here to a specific color (to
        // Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
        // change color while the other colors stay the same.
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child: Column(
          // Column is also a layout widget. It takes a list of children and
          // arranges them vertically. By default, it sizes itself to fit its
          // children horizontally, and tries to be as tall as its parent.
          //
          // Column has various properties to control how it sizes itself and
          // how it positions its children. Here we use mainAxisAlignment to
          // center the children vertically; the main axis here is the vertical
          // axis because Columns are vertical (the cross axis would be
          // horizontal).
          //
          // TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
          // action in the IDE, or press "p" in the console), to see the
          // wireframe for each widget.
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headlineMedium,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}

更多关于Flutter模拟内购插件in_app_faker的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html

1 回复

更多关于Flutter模拟内购插件in_app_faker的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html


in_app_faker 是一个用于 Flutter 的模拟内购插件,它允许开发者在开发和测试阶段模拟应用内购买(In-App Purchases)的行为,而不需要实际连接到 App Store 或 Google Play。这对于开发者在没有实际支付环境的情况下测试应用内购买功能非常有用。

以下是如何在 Flutter 项目中使用 in_app_faker 的步骤:

1. 添加依赖

首先,你需要在 pubspec.yaml 文件中添加 in_app_faker 依赖:

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

然后运行 flutter pub get 来获取依赖。

2. 配置 InAppFaker

在你的 Dart 代码中,你需要初始化 InAppFaker 并配置模拟的购买项。

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

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  
  // 初始化 InAppFaker
  await InAppFaker.initialize(
    purchaseItems: [
      PurchaseItem(
        id: 'com.example.product1',
        title: 'Product 1',
        description: 'This is product 1',
        price: '\$0.99',
        currency: 'USD',
      ),
      PurchaseItem(
        id: 'com.example.product2',
        title: 'Product 2',
        description: 'This is product 2',
        price: '\$1.99',
        currency: 'USD',
      ),
    ],
  );

  runApp(MyApp());
}

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

3. 实现购买逻辑

接下来,你可以在应用中实现购买逻辑。InAppFaker 提供了与 in_app_purchase 插件类似的 API,因此你可以使用类似的方法来启动购买流程。

class InAppPurchaseScreen extends StatelessWidget {
  Future<void> _purchaseProduct(String productId) async {
    try {
      final purchaseDetails = await InAppFaker.purchase(productId);
      if (purchaseDetails.status == PurchaseStatus.purchased) {
        // 处理购买成功的逻辑
        print('Purchase successful: ${purchaseDetails.productID}');
      } else {
        // 处理购买失败或取消的逻辑
        print('Purchase failed or cancelled');
      }
    } catch (e) {
      print('Error during purchase: $e');
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('InAppFaker Demo'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            ElevatedButton(
              onPressed: () => _purchaseProduct('com.example.product1'),
              child: Text('Buy Product 1'),
            ),
            SizedBox(height: 20),
            ElevatedButton(
              onPressed: () => _purchaseProduct('com.example.product2'),
              child: Text('Buy Product 2'),
            ),
          ],
        ),
      ),
    );
  }
}
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