Flutter电子券验证与管理插件merchant_evc_plus的使用
Flutter电子券验证与管理插件merchant_evc_plus的使用
使用
final merchantEvcPlus = MerchantEvcPlus(
apiKey: '', // API 密钥
merchantUid: '', // 商户 UID
apiUserId: '', // API 用户 ID
);
final transactionInfo = TransactionInfo(payerPhoneNumber: 'xxxxxx', amount: 1);
await merchantEvcPlus.makePayment(
transactionInfo: transactionInfo,
onSuccess: () {
print('支付成功');
},
onFailure: (error) {
print(error);
},
);
完整示例 Demo
示例代码
import 'package:flutter/material.dart';
import 'package:merchant_evc_plus/merchant_evc_plus.dart';
import 'package:modal_progress_hud_nsn/modal_progress_hud_nsn.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
[@override](/user/override)
Widget build(BuildContext context) {
return MaterialApp(
title: '商户 EvcPlus API',
debugShowCheckedModeBanner: false,
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: '商户 EvcPlus API'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key, required this.title}) : super(key: key);
final String title;
[@override](/user/override)
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final _formKey = GlobalKey<FormState>();
late String merchantUid, apiUserId, apiKey, phone;
late num amount;
bool isLoading = false;
void makePayment() async {
FocusScope.of(context).unfocus();
if (_formKey.currentState != null) {
_formKey.currentState!.save();
if (_formKey.currentState!.validate()) {
final merchantEvcPlus = MerchantEvcPlus(
apiKey: apiKey,
merchantUid: merchantUid,
apiUserId: apiUserId,
);
setState(() => isLoading = !isLoading);
await merchantEvcPlus.makePayment(
transactionInfo: TransactionInfo(
payerPhoneNumber: phone,
amount: amount,
invoiceId: 'INV-PLAN-Test',
),
onSuccess: () {
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content: Text('支付成功'),
));
},
onFailure: (error) {
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content: Text(error),
));
},
);
setState(() => isLoading = !isLoading);
}
}
}
[@override](/user/override)
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
centerTitle: true,
),
body: ModalProgressHUD(
inAsyncCall: isLoading,
child: Center(
child: SingleChildScrollView(
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 10),
child: Form(
key: _formKey,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'API 配置',
style: TextStyle(fontSize: 20),
),
const SizedBox(height: 6),
Text(
'注意:为了获得这些凭证,您需要联系 Hormuud 电信。',
style: TextStyle(fontSize: 12),
textAlign: TextAlign.center,
),
const SizedBox(height: 30),
TextFormField(
validator: (value) {
if (value != null) if (value.isEmpty)
return '字段必填';
},
onSaved: (newValue) {
if (newValue != null) merchantUid = newValue;
},
decoration: InputDecoration(
border: OutlineInputBorder(),
labelText: '商户 UID',
),
),
const SizedBox(height: 16),
TextFormField(
validator: (value) {
if (value != null) if (value.isEmpty)
return '字段必填';
},
onSaved: (newValue) {
if (newValue != null) apiUserId = newValue;
},
decoration: InputDecoration(
border: OutlineInputBorder(),
labelText: 'API 用户 ID',
),
),
const SizedBox(height: 16),
TextFormField(
validator: (value) {
if (value != null) if (value.isEmpty)
return '字段必填';
},
onSaved: (newValue) {
if (newValue != null) apiKey = newValue;
},
decoration: InputDecoration(
border: OutlineInputBorder(),
labelText: 'API 密钥',
),
),
const SizedBox(height: 20),
const Text('测试部分'),
const SizedBox(height: 10),
// 测试字段
Container(
padding: const EdgeInsets.symmetric(
horizontal: 16, vertical: 20),
decoration: BoxDecoration(
border: Border.all(color: Colors.grey.shade300),
borderRadius: BorderRadius.circular(10),
),
child: Column(
children: [
TextFormField(
validator: (value) {
if (value != null) if (value.isEmpty)
return '字段必填';
},
onSaved: (newValue) {
if (newValue != null) phone = newValue;
},
decoration: InputDecoration(
border: OutlineInputBorder(),
labelText: '电话号码',
hintText: '25261123456',
),
),
const SizedBox(height: 10),
TextFormField(
keyboardType: TextInputType.number,
validator: (value) {
if (value != null) if (value.isEmpty)
return '字段必填';
},
onSaved: (newValue) {
if (newValue != null)
amount = double.tryParse(newValue) ?? 0;
},
decoration: InputDecoration(
border: OutlineInputBorder(),
labelText: '金额',
hintText: '0.5',
),
),
],
),
),
const SizedBox(height: 16),
RawMaterialButton(
onPressed: makePayment,
child: Text(
'保存并测试',
style: TextStyle(color: Colors.white, fontSize: 20),
),
constraints: BoxConstraints.tightFor(
width: double.infinity,
height: 56,
),
fillColor: Colors.blue,
),
],
),
),
),
),
),
),
floatingActionButton: FloatingActionButton(
onPressed: () => showDialog(
context: context,
builder: (_) => AlertDialog(
title: Text('开发者信息'),
content: Text(
'该插件由 Abdirahman Baabale 开发。 \n\n邮件: me@baabale.com \n网站: baabale.com',
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: Text('好的,知道了!'),
),
],
),
),
tooltip: '开发者',
child: const Icon(Icons.info),
),
);
}
}
更多关于Flutter电子券验证与管理插件merchant_evc_plus的使用的实战教程也可以访问 https://www.itying.com/category-92-b0.html
更多关于Flutter电子券验证与管理插件merchant_evc_plus的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html
当然,以下是如何在Flutter项目中使用merchant_evc_plus
插件进行电子券验证与管理的示例代码。假设你已经将merchant_evc_plus
插件添加到了你的pubspec.yaml
文件中,并且已经运行了flutter pub get
命令。
1. 添加依赖
首先,确保你的pubspec.yaml
文件中包含以下依赖:
dependencies:
flutter:
sdk: flutter
merchant_evc_plus: ^最新版本号
2. 导入插件
在你的Dart文件中导入merchant_evc_plus
插件:
import 'package:merchant_evc_plus/merchant_evc_plus.dart';
3. 初始化插件
通常,你需要在应用的入口文件(例如main.dart
)中初始化插件。不过,具体的初始化步骤可能依赖于插件的具体实现和文档。这里假设插件有一个初始化方法:
void main() {
WidgetsFlutterBinding.ensureInitialized();
// 假设插件有一个初始化方法
MerchantEvcPlus.instance.initialize();
runApp(MyApp());
}
4. 使用插件进行电子券验证与管理
以下是一个简单的示例,展示如何使用merchant_evc_plus
插件进行电子券验证:
import 'package:flutter/material.dart';
import 'package:merchant_evc_plus/merchant_evc_plus.dart';
void main() {
WidgetsFlutterBinding.ensureInitialized();
MerchantEvcPlus.instance.initialize();
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: Text('Merchant EVC Plus Example'),
),
body: Center(
child: ValidateCouponButton(),
),
),
);
}
}
class ValidateCouponButton extends StatelessWidget {
@override
Widget build(BuildContext context) {
return ElevatedButton(
onPressed: () async {
// 假设你有一个电子券的code
String couponCode = "YOUR_COUPON_CODE_HERE";
try {
// 调用插件的验证方法
var result = await MerchantEvcPlus.instance.validateCoupon(couponCode);
// 处理验证结果
if (result.isValid) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Coupon is valid')),
);
} else {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Coupon is invalid or expired')),
);
}
} catch (e) {
// 处理错误
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Failed to validate coupon: $e')),
);
}
},
child: Text('Validate Coupon'),
);
}
}
5. 管理电子券
管理电子券可能涉及创建、更新和删除电子券等操作。具体的方法取决于merchant_evc_plus
插件提供的API。以下是一个假设性的示例,展示如何管理电子券:
// 假设有一个创建电子券的方法
Future<void> createCoupon() async {
try {
var couponDetails = {
'code': 'NEW_COUPON_CODE',
'value': 100, // 假设电子券的价值为100
'expiryDate': '2023-12-31', // 电子券的过期日期
};
var result = await MerchantEvcPlus.instance.createCoupon(couponDetails);
if (result.isSuccess) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Coupon created successfully')),
);
} else {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Failed to create coupon')),
);
}
} catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Error creating coupon: $e')),
);
}
}
请注意,上述createCoupon
方法中的参数和返回值是假设性的,具体实现应参考merchant_evc_plus
插件的文档。
总结
以上代码示例展示了如何在Flutter项目中使用merchant_evc_plus
插件进行电子券的验证与管理。具体实现细节和API调用应参考插件的官方文档和示例代码。