feat(mobile-app): 授权申请弹窗支持省市选择器

- 市团队和省团队申请弹窗使用 city_pickers 选择省市
- 默认选中本地存储的省市（来自认种时的选择）
- 允许用户重新选择省市
- 社区申请保持只输入社区名称（无省市选择）

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/mobile-app/lib/features/authorization/presentation/pages/authorization_apply_page.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
 import 'package:image_picker/image_picker.dart';
+import 'package:city_pickers/city_pickers.dart';
 import '../../../../core/di/injection_container.dart';
 import '../../../../core/services/authorization_service.dart';
 
@@ -207,159 +208,260 @@ class _AuthorizationApplyPageState
   }
 
   /// 显示授权确认弹窗
-  Future<bool?> _showAuthorizationConfirmDialog(AuthorizationType type) {
+  /// 返回 Map 包含确认状态和选择的省市信息
+  Future<Map<String, dynamic>?> _showAuthorizationConfirmDialog(AuthorizationType type) {
     String title;
-    String locationInfo;
-    String? additionalField;
 
     switch (type) {
       case AuthorizationType.community:
         title = '申请社区授权';
-        locationInfo = '请输入您的社区名称';
-        additionalField = 'community';
         break;
       case AuthorizationType.cityTeam:
         title = '申请市团队授权';
-        if (_savedCityName == null || _savedCityCode == null) {
-          _showErrorSnackBar('未找到认种时保存的城市信息，请先完成认种');
-          return Future.value(false);
-        }
-        locationInfo = '城市: $_savedCityName';
         break;
       case AuthorizationType.provinceTeam:
         title = '申请省团队授权';
-        if (_savedProvinceName == null || _savedProvinceCode == null) {
-          _showErrorSnackBar('未找到认种时保存的省份信息，请先完成认种');
-          return Future.value(false);
-        }
-        locationInfo = '省份: $_savedProvinceName';
         break;
     }
 
-    return showDialog<bool>(
+    // 初始化弹窗内的临时变量（使用本地存储的值作为默认值）
+    String? tempProvinceName = _savedProvinceName;
+    String? tempProvinceCode = _savedProvinceCode;
+    String? tempCityName = _savedCityName;
+    String? tempCityCode = _savedCityCode;
+
+    return showDialog<Map<String, dynamic>>(
       context: context,
       barrierDismissible: true,
-      builder: (context) => AlertDialog(
+      builder: (dialogContext) => StatefulBuilder(
-        shape: RoundedRectangleBorder(
+        builder: (context, setDialogState) {
-          borderRadius: BorderRadius.circular(16),
+          // 显示省市选择器
-        ),
+          Future<void> showLocationPicker() async {
-        title: Text(
+            final result = await CityPickers.showCityPicker(
-          title,
+              context: context,
-          style: const TextStyle(
+              cancelWidget: const Text(
-            fontSize: 18,
+                '取消',
-            fontWeight: FontWeight.w600,
+                style: TextStyle(color: Color(0xFF745D43), fontSize: 16),
-            color: Color(0xFF5D4037),
-          ),
-        ),
-        content: Column(
-          mainAxisSize: MainAxisSize.min,
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: [
-            if (additionalField == 'community') ...[
-              const Text(
-                '社区名称',
-                style: TextStyle(
-                  fontSize: 14,
-                  fontWeight: FontWeight.w500,
-                  color: Color(0xFF745D43),
-                ),
               ),
-              const SizedBox(height: 8),
+              confirmWidget: const Text(
-              TextField(
+                '确定',
-                controller: _communityNameController,
+                style: TextStyle(color: Color(0xFFD4AF37), fontSize: 16, fontWeight: FontWeight.w600),
-                decoration: InputDecoration(
-                  hintText: '请输入社区名称',
-                  hintStyle: TextStyle(
-                    color: const Color(0xFF745D43).withOpacity(0.5),
-                  ),
-                  border: OutlineInputBorder(
-                    borderRadius: BorderRadius.circular(8),
-                    borderSide: const BorderSide(color: Color(0x4D8B5A2B)),
-                  ),
-                  focusedBorder: OutlineInputBorder(
-                    borderRadius: BorderRadius.circular(8),
-                    borderSide: const BorderSide(color: Color(0xFFD4AF37), width: 2),
-                  ),
-                  contentPadding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
-                ),
               ),
-            ] else ...[
+              height: 300,
-              Container(
+              showType: ShowType.pc, // 只显示省市两级
-                width: double.infinity,
+              barrierDismissible: true,
-                padding: const EdgeInsets.all(16),
+              locationCode: tempCityCode ?? tempProvinceCode, // 默认选中保存的位置
-                decoration: BoxDecoration(
+            );
-                  color: const Color(0xFFFFF5E6),
+
-                  borderRadius: BorderRadius.circular(8),
+            if (result != null) {
-                  border: Border.all(color: const Color(0x33D4AF37)),
+              setDialogState(() {
-                ),
+                tempProvinceName = result.provinceName;
-                child: Column(
+                tempProvinceCode = result.provinceId;
-                  crossAxisAlignment: CrossAxisAlignment.start,
+                tempCityName = result.cityName;
-                  children: [
+                tempCityCode = result.cityId;
-                    Text(
+              });
-                      locationInfo,
+            }
-                      style: const TextStyle(
+          }
-                        fontSize: 16,
+
-                        fontWeight: FontWeight.w600,
+          return AlertDialog(
-                        color: Color(0xFF5D4037),
+            shape: RoundedRectangleBorder(
+              borderRadius: BorderRadius.circular(16),
+            ),
+            title: Text(
+              title,
+              style: const TextStyle(
+                fontSize: 18,
+                fontWeight: FontWeight.w600,
+                color: Color(0xFF5D4037),
+              ),
+            ),
+            content: Column(
+              mainAxisSize: MainAxisSize.min,
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                if (type == AuthorizationType.community) ...[
+                  const Text(
+                    '社区名称',
+                    style: TextStyle(
+                      fontSize: 14,
+                      fontWeight: FontWeight.w500,
+                      color: Color(0xFF745D43),
+                    ),
+                  ),
+                  const SizedBox(height: 8),
+                  TextField(
+                    controller: _communityNameController,
+                    decoration: InputDecoration(
+                      hintText: '请输入社区名称',
+                      hintStyle: TextStyle(
+                        color: const Color(0xFF745D43).withOpacity(0.5),
+                      ),
+                      border: OutlineInputBorder(
+                        borderRadius: BorderRadius.circular(8),
+                        borderSide: const BorderSide(color: Color(0x4D8B5A2B)),
+                      ),
+                      focusedBorder: OutlineInputBorder(
+                        borderRadius: BorderRadius.circular(8),
+                        borderSide: const BorderSide(color: Color(0xFFD4AF37), width: 2),
+                      ),
+                      contentPadding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
+                    ),
+                  ),
+                ] else ...[
+                  // 省市选择区域
+                  Text(
+                    type == AuthorizationType.cityTeam ? '选择城市' : '选择省份',
+                    style: const TextStyle(
+                      fontSize: 14,
+                      fontWeight: FontWeight.w500,
+                      color: Color(0xFF745D43),
+                    ),
+                  ),
+                  const SizedBox(height: 8),
+                  GestureDetector(
+                    onTap: showLocationPicker,
+                    child: Container(
+                      width: double.infinity,
+                      padding: const EdgeInsets.all(16),
+                      decoration: BoxDecoration(
+                        color: const Color(0xFFFFF5E6),
+                        borderRadius: BorderRadius.circular(8),
+                        border: Border.all(color: const Color(0x4DD4AF37)),
+                      ),
+                      child: Row(
+                        children: [
+                          Expanded(
+                            child: Column(
+                              crossAxisAlignment: CrossAxisAlignment.start,
+                              children: [
+                                if (type == AuthorizationType.cityTeam) ...[
+                                  Text(
+                                    tempCityName ?? '请选择城市',
+                                    style: TextStyle(
+                                      fontSize: 16,
+                                      fontWeight: FontWeight.w600,
+                                      color: tempCityName != null
+                                          ? const Color(0xFF5D4037)
+                                          : const Color(0xFF5D4037).withOpacity(0.5),
+                                    ),
+                                  ),
+                                  if (tempProvinceName != null) ...[
+                                    const SizedBox(height: 4),
+                                    Text(
+                                      tempProvinceName!,
+                                      style: TextStyle(
+                                        fontSize: 12,
+                                        color: const Color(0xFF745D43).withOpacity(0.7),
+                                      ),
+                                    ),
+                                  ],
+                                ] else ...[
+                                  Text(
+                                    tempProvinceName ?? '请选择省份',
+                                    style: TextStyle(
+                                      fontSize: 16,
+                                      fontWeight: FontWeight.w600,
+                                      color: tempProvinceName != null
+                                          ? const Color(0xFF5D4037)
+                                          : const Color(0xFF5D4037).withOpacity(0.5),
+                                    ),
+                                  ),
+                                ],
+                              ],
+                            ),
+                          ),
+                          const Icon(
+                            Icons.keyboard_arrow_down,
+                            color: Color(0xFFD4AF37),
+                            size: 24,
+                          ),
+                        ],
                       ),
                     ),
-                    const SizedBox(height: 8),
+                  ),
-                    Text(
+                  const SizedBox(height: 8),
-                      '此信息来自您认种时的选择，不可修改',
+                  Text(
-                      style: TextStyle(
+                    '点击可重新选择省市',
-                        fontSize: 12,
+                    style: TextStyle(
-                        color: const Color(0xFF745D43).withOpacity(0.7),
+                      fontSize: 12,
-                      ),
+                      color: const Color(0xFF745D43).withOpacity(0.6),
                     ),
-                  ],
+                  ),
+                ],
+                const SizedBox(height: 16),
+                Text(
+                  '确认申请后将使用以上信息提交授权申请',
+                  style: TextStyle(
+                    fontSize: 13,
+                    color: const Color(0xFF745D43).withOpacity(0.8),
+                  ),
+                ),
+              ],
+            ),
+            actions: [
+              TextButton(
+                onPressed: () => Navigator.of(dialogContext).pop(null),
+                child: const Text(
+                  '取消',
+                  style: TextStyle(color: Color(0xFF745D43)),
+                ),
+              ),
+              ElevatedButton(
+                onPressed: () {
+                  if (type == AuthorizationType.community) {
+                    if (_communityNameController.text.trim().isEmpty) {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        const SnackBar(
+                          content: Text('请输入社区名称'),
+                          backgroundColor: Colors.red,
+                        ),
+                      );
+                      return;
+                    }
+                  } else if (type == AuthorizationType.cityTeam) {
+                    if (tempCityCode == null || tempCityName == null) {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        const SnackBar(
+                          content: Text('请选择城市'),
+                          backgroundColor: Colors.red,
+                        ),
+                      );
+                      return;
+                    }
+                  } else if (type == AuthorizationType.provinceTeam) {
+                    if (tempProvinceCode == null || tempProvinceName == null) {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        const SnackBar(
+                          content: Text('请选择省份'),
+                          backgroundColor: Colors.red,
+                        ),
+                      );
+                      return;
+                    }
+                  }
+
+                  Navigator.of(dialogContext).pop({
+                    'confirmed': true,
+                    'provinceName': tempProvinceName,
+                    'provinceCode': tempProvinceCode,
+                    'cityName': tempCityName,
+                    'cityCode': tempCityCode,
+                  });
+                },
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: const Color(0xFFD4AF37),
+                  shape: RoundedRectangleBorder(
+                    borderRadius: BorderRadius.circular(8),
+                  ),
+                ),
+                child: const Text(
+                  '确认申请',
+                  style: TextStyle(color: Colors.white),
                 ),
               ),
             ],
-            const SizedBox(height: 16),
+          );
-            Text(
+        },
-              '确认申请后将使用以上信息提交授权申请',
-              style: TextStyle(
-                fontSize: 13,
-                color: const Color(0xFF745D43).withOpacity(0.8),
-              ),
-            ),
-          ],
-        ),
-        actions: [
-          TextButton(
-            onPressed: () => Navigator.of(context).pop(false),
-            child: const Text(
-              '取消',
-              style: TextStyle(color: Color(0xFF745D43)),
-            ),
-          ),
-          ElevatedButton(
-            onPressed: () {
-              if (additionalField == 'community') {
-                if (_communityNameController.text.trim().isEmpty) {
-                  ScaffoldMessenger.of(context).showSnackBar(
-                    const SnackBar(
-                      content: Text('请输入社区名称'),
-                      backgroundColor: Colors.red,
-                    ),
-                  );
-                  return;
-                }
-              }
-              Navigator.of(context).pop(true);
-            },
-            style: ElevatedButton.styleFrom(
-              backgroundColor: const Color(0xFFD4AF37),
-              shape: RoundedRectangleBorder(
-                borderRadius: BorderRadius.circular(8),
-              ),
-            ),
-            child: const Text(
-              '确认申请',
-              style: TextStyle(color: Colors.white),
-            ),
-          ),
-        ],
       ),
     );
   }
@@ -395,8 +497,8 @@ class _AuthorizationApplyPageState
     }
 
     // 显示确认弹窗
-    final confirmed = await _showAuthorizationConfirmDialog(_selectedType!);
+    final dialogResult = await _showAuthorizationConfirmDialog(_selectedType!);
-    if (confirmed != true) {
+    if (dialogResult == null || dialogResult['confirmed'] != true) {
       return;
     }
 
@@ -419,6 +521,7 @@ class _AuthorizationApplyPageState
       }
 
       // 2. 将 AuthorizationType 转换为 SelfApplyAuthorizationType
+      // 从弹窗返回结果中获取省市信息
       SelfApplyAuthorizationType selfApplyType;
       String? communityName;
       String? provinceCode;
@@ -433,13 +536,13 @@ class _AuthorizationApplyPageState
           break;
         case AuthorizationType.cityTeam:
           selfApplyType = SelfApplyAuthorizationType.cityTeam;
-          cityCode = _savedCityCode;
+          cityCode = dialogResult['cityCode'] as String?;
-          cityName = _savedCityName;
+          cityName = dialogResult['cityName'] as String?;
           break;
         case AuthorizationType.provinceTeam:
           selfApplyType = SelfApplyAuthorizationType.provinceTeam;
-          provinceCode = _savedProvinceCode;
+          provinceCode = dialogResult['provinceCode'] as String?;
-          provinceName = _savedProvinceName;
+          provinceName = dialogResult['provinceName'] as String?;
           break;
       }