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@@ -0,0 +1,109 @@
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+import 'package:flutter/material.dart';
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+import 'package:plugin_platform/engine/notify/notify_engine.dart';
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+import 'package:plugin_platform/platform_export.dart';
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+import 'package:shared/utils/log_utils.dart';
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+
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+//定义一个top-level（全局）变量，页面引入该文件后可以直接使用
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+var stripeService = StripeService();
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+
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+class StripeService {
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+
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+ StripeService._internal();
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+
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+ //保存单例
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+ static final StripeService _singleton = StripeService._internal();
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+
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+ //工厂构造函数
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+ factory StripeService() => _singleton;
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+
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+
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+ bool _isInitialized = false;
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+
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+ //初始化 Stripe
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+ Future<void> _ensureInitialized() async {
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+ if (_isInitialized) return;
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+
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+ Stripe.publishableKey = 'pk_test_51RMmxaRpg7SPAcNndAqMUMEOkRFsY5mL0JqJmdunL3vspxrYsGjGARQddaVu3ZQVEy1e1WTF8yalt0cYZCY8sK9R0005VIg5mC';
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+ await Stripe.instance.applySettings();
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+
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+ Log.d("Stripe 初始化完成");
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+ _isInitialized = true;
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+ }
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+
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+ ///执行支付
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+ Future<bool> executePayment({
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+ required String orderId,
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+ }) async {
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+ try {
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+ await _ensureInitialized();
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+
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+ // 实际开发中应从服务端获取 clientSecret
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+ final clientSecret = await _fetchPaymentIntent(orderId);
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+
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+ await _initializePaymentSheet(clientSecret);
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+ await Stripe.instance.presentPaymentSheet();
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+ Log.d("presentPaymentSheet 关闭，用户操作完成 !");
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+ return await _verifyPaymentResult(clientSecret);
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+ } on StripeException catch (e) {
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+ _handleStripeError(e);
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+ return false;
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+ } catch (e) {
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+ _handleGenericError(e);
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+ return false;
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+ }
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+ }
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+
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+ ///调用网络请求
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+ Future<String> _fetchPaymentIntent(String orderId) async {
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+ // 实际开发中调用后端接口获取
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+ return "pi_3ROERGRpg7SPAcNn0sPDWCQI_secret_EZPly9t0IbKqaKA2CQwkUNIjd";
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+ }
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+
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+ Future<void> _initializePaymentSheet(String clientSecret) async {
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+ await Stripe.instance.initPaymentSheet(
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+ paymentSheetParameters: SetupPaymentSheetParameters(
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+ customFlow: false,
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+ paymentIntentClientSecret: clientSecret,
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+ merchantDisplayName: 'Your App Demo',
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+ style: ThemeMode.light,
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+ allowsDelayedPaymentMethods: false,
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+ ),
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+ );
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+ }
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+
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+ Future<bool> _verifyPaymentResult(String clientSecret) async {
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+ final paymentIntent = await Stripe.instance.retrievePaymentIntent(clientSecret);
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+
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+ switch (paymentIntent.status) {
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+ case PaymentIntentsStatus.Succeeded:
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+ NotifyEngine.showSuccess('支付成功');
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+ return true;
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+ case PaymentIntentsStatus.RequiresPaymentMethod:
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+ NotifyEngine.showFailure('支付方式无效');
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+ return false;
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+ case PaymentIntentsStatus.Processing:
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+ return await _handleProcessingPayment(clientSecret);
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+ default:
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+ return false;
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+ }
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+ }
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+
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+ Future<bool> _handleProcessingPayment(String clientSecret) async {
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+ // 处理需要等待的支付状态
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+ await Future.delayed(const Duration(seconds: 2));
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+ final updatedIntent = await Stripe.instance.retrievePaymentIntent(clientSecret);
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+
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+ return updatedIntent.status == PaymentIntentsStatus.Succeeded;
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+ }
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+
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+ void _handleStripeError(StripeException e) {
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+ final errorMessage = e.error.localizedMessage ?? '支付失败';
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+ Log.e('Stripe Error: ${e.error.code} - $errorMessage');
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+ NotifyEngine.showError(errorMessage);
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+ }
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+
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+ void _handleGenericError(dynamic e) {
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+ Log.e('System Error: $e');
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+ NotifyEngine.showError('支付系统异常');
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+ }
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+}
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liukai