上传代码

lib/data/models/channel_app_model.dart

@@ -69,12 +69,17 @@ class AppInfo {
   @JsonKey(name: 'tourists')
   final bool tourists;
 
+  /// 支付渠道列表
+  @JsonKey(name: 'Paychannels')
+  final String? paychannels;
+
   const AppInfo({
     this.address,
     required this.channel,
     required this.description,
     required this.version,
     this.tourists = false,
+    required this.paychannels,
   });
 
   factory AppInfo.fromJson(Map<String, dynamic> json) =>

lib/data/models/channel_app_model.g.dart

@@ -38,6 +38,7 @@ AppInfo _$AppInfoFromJson(Map<String, dynamic> json) => AppInfo(
       description: json['description'] as String,
       version: json['version'] as String,
       tourists: json['tourists'] as bool? ?? false,
+      paychannels: json['paychannels'] as String?,
     );
 
 Map<String, dynamic> _$AppInfoToJson(AppInfo instance) => <String, dynamic>{
@@ -46,4 +47,5 @@ Map<String, dynamic> _$AppInfoToJson(AppInfo instance) => <String, dynamic>{
       'description': instance.description,
       'version': instance.version,
       'tourists': instance.tourists,
+      'paychannels': instance.paychannels,
     };

lib/modules/goods/controllers/goods_base_controller.dart

@@ -3,6 +3,7 @@ import 'package:get/get.dart';
 import 'package:voitrans/data/models/user_Info.dart';
 import '../../../routes/app_routes.dart';
 import '../../../data/services/pay_service.dart';
+import '../../../data/services/version_update_service.dart';
 import '../../../data/models/goods.dart';
 import 'package:flutter_dotenv/flutter_dotenv.dart';
 import '../../../data/services/network/dio_manager.dart';
@@ -39,10 +40,20 @@ abstract class GoodsBaseController extends GetxController {
   /// 子类实现：返回商品列表（统一使用 DBGoods）
   Future<List<DBGoods>> fetchProducts();
 
-  /// 统一入口：不指定支付方式时，跳转到支付页面交由用户选择
+  /// 统一入口：根据后端配置决定是否弹出支付方式选择面板
   Future<void> purchase(DBGoods item) async {
-    final method = await _showPayMethodSheet();
+    // 读取渠道配置
+    final enabled = _getEnabledPayMethods();
+
+    // 无配置或多个渠道：弹出选择面板
+    _PayMethod? method;
+    if (enabled.length != 1) {
+      method = await _showPayMethodSheet(enabled);
       if (method == null) return;
+    } else {
+      // 仅一个渠道：直接走对应支付
+      method = enabled.first;
+    }
 
     bool ok = false;
     String failMsg = '支付失败，请重试';
@@ -75,8 +86,73 @@ abstract class GoodsBaseController extends GetxController {
     }
   }
 
-  /// 底部弹窗：选择支付方式
-  Future<_PayMethod?> _showPayMethodSheet() async {
+  /// 解析后端 paychannels 并结合平台过滤可用支付方式
+  List<_PayMethod> _getEnabledPayMethods() {
+    try {
+      final paychannels =
+          VersionUpdateService.to.cachedAppInfo?.paychannels ?? '';
+      final raw = paychannels
+          .split(',')
+          .map((e) => e.trim().toLowerCase())
+          .where((e) => e.isNotEmpty)
+          .toList();
+
+      final bool isIOS = GetPlatform.isIOS && !kIsWeb;
+      final bool isAndroid = GetPlatform.isAndroid && !kIsWeb;
+
+      final List<_PayMethod> methods = [];
+      for (final ch in raw) {
+        switch (ch) {
+          case 'wxpay':
+          case 'wechat':
+            methods.add(_PayMethod.wechat);
+            break;
+          case 'alipay':
+            methods.add(_PayMethod.alipay);
+            break;
+          case 'paypal':
+            methods.add(_PayMethod.paypal);
+            break;
+          case 'apple':
+            if (isIOS) methods.add(_PayMethod.apple);
+            break;
+          case 'google':
+            if (isAndroid) methods.add(_PayMethod.google);
+            break;
+          default:
+            break;
+        }
+      }
+
+      // 若后端未下发或全部被平台过滤，则回退为展示所有平台支持的方式
+      if (methods.isEmpty) {
+        final fallback = <_PayMethod>[
+          _PayMethod.wechat,
+          _PayMethod.alipay,
+          _PayMethod.paypal
+        ];
+        if (isIOS) fallback.add(_PayMethod.apple);
+        if (isAndroid) fallback.add(_PayMethod.google);
+        return fallback;
+      }
+      return methods;
+    } catch (_) {
+      // 任意异常则回退为旧逻辑：展示所有
+      final bool isIOS = GetPlatform.isIOS && !kIsWeb;
+      final bool isAndroid = GetPlatform.isAndroid && !kIsWeb;
+      final fallback = <_PayMethod>[
+        _PayMethod.wechat,
+        _PayMethod.alipay,
+        _PayMethod.paypal
+      ];
+      if (isIOS) fallback.add(_PayMethod.apple);
+      if (isAndroid) fallback.add(_PayMethod.google);
+      return fallback;
+    }
+  }
+
+  /// 底部弹窗：选择支付方式（仅展示后端允许的渠道）
+  Future<_PayMethod?> _showPayMethodSheet(List<_PayMethod> allowed) async {
     final context = Get.context;
     final isDark =
         context != null && Theme.of(context).brightness == Brightness.dark;
@@ -121,6 +197,7 @@ abstract class GoodsBaseController extends GetxController {
                     Row(
                       mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                       children: [
+                        if (allowed.contains(_PayMethod.wechat))
                           GestureDetector(
                             onTap: () => Get.back(result: _PayMethod.wechat),
                             child: Column(
@@ -131,8 +208,9 @@ abstract class GoodsBaseController extends GetxController {
                                   height: 56,
                                   decoration: BoxDecoration(
                                     shape: BoxShape.circle,
-                                  color:
-                                      isDark ? Colors.white10 : Colors.black12,
+                                    color: isDark
+                                        ? Colors.white10
+                                        : Colors.black12,
                                     border: Border.all(
                                       color: isDark
                                           ? Colors.white24
@@ -153,6 +231,7 @@ abstract class GoodsBaseController extends GetxController {
                               ],
                             ),
                           ),
+                        if (allowed.contains(_PayMethod.alipay))
                           GestureDetector(
                             onTap: () => Get.back(result: _PayMethod.alipay),
                             child: Column(
@@ -163,8 +242,9 @@ abstract class GoodsBaseController extends GetxController {
                                   height: 56,
                                   decoration: BoxDecoration(
                                     shape: BoxShape.circle,
-                                  color:
-                                      isDark ? Colors.white10 : Colors.black12,
+                                    color: isDark
+                                        ? Colors.white10
+                                        : Colors.black12,
                                     border: Border.all(
                                       color: isDark
                                           ? Colors.white24
@@ -185,6 +265,7 @@ abstract class GoodsBaseController extends GetxController {
                               ],
                             ),
                           ),
+                        if (allowed.contains(_PayMethod.paypal))
                           GestureDetector(
                             onTap: () => Get.back(result: _PayMethod.paypal),
                             child: Column(
@@ -195,8 +276,9 @@ abstract class GoodsBaseController extends GetxController {
                                   height: 56,
                                   decoration: BoxDecoration(
                                     shape: BoxShape.circle,
-                                  color:
-                                      isDark ? Colors.white10 : Colors.black12,
+                                    color: isDark
+                                        ? Colors.white10
+                                        : Colors.black12,
                                     border: Border.all(
                                       color: isDark
                                           ? Colors.white24
@@ -219,7 +301,7 @@ abstract class GoodsBaseController extends GetxController {
                               ],
                             ),
                           ),
-                        if (isIOS)
+                        if (isIOS && allowed.contains(_PayMethod.apple))
                           GestureDetector(
                             onTap: () => Get.back(result: _PayMethod.apple),
                             child: Column(
@@ -255,7 +337,7 @@ abstract class GoodsBaseController extends GetxController {
                               ],
                             ),
                           ),
-                        if (isAndroid)
+                        if (isAndroid && allowed.contains(_PayMethod.google))
                           GestureDetector(
                             onTap: () => Get.back(result: _PayMethod.google),
                             child: Column(