Files
jiu/client/lib/providers/product_provider.dart
T
wangjia 5dd7c07138 feat(client): 网络恢复自动刷新 + 离线嗅探 + 连通性感知登录
网络嗅探与自动恢复:
- ConnectivityNotifier:在线时 30s 检测,离线时切换为 1min 嗅探
- 新增 networkRecoveryCountProvider:网络恢复时自增,各数据 provider
  通过 ref.watch 实现自动重新加载
- inventory/product/stock_in/stock_out/partner provider 均已接入

FutureBuilder 类屏幕:
- finance_screen + batch_tracking_screen 通过 ref.listen 监听恢复事件

修复问题 1:API 超时 10s/30s → 5s/15s,减少无网络时等待
修复问题 2:offline banner 文字由"写操作已禁用"改为实际行为描述

连通性感知:
- app 启动时(_AppBootstrap)立即 forceCheck,路由跳转前状态已就绪
- 登录页:watch connectivityProvider,离线时显示警告 banner
- 登录按钮:离线状态下直接提示,不等待超时

测试:
- login_screen_test + login_flow_test 通过 ConnectivityNotifier(skipInit: true)
  覆盖 provider,避免测试环境中 pending HTTP timer

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-18 19:52:17 +08:00

97 lines
2.3 KiB
Dart

import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../core/api/api_client.dart';
import '../core/auth/auth_state.dart';
import '../core/models/page_result.dart';
import '../models/product.dart';
import '../repositories/product_repository.dart';
import 'connectivity_provider.dart';
final productRepositoryProvider = Provider<ProductRepository>((ref) {
return ProductRepository(ref.watch(apiClientProvider));
});
final productListProvider =
AsyncNotifierProvider<ProductListNotifier, PageResult<Product>>(
ProductListNotifier.new,
);
class ProductListNotifier extends AsyncNotifier<PageResult<Product>> {
int _page = 1;
String _keyword = '';
int? _categoryId;
PageResult<Product>? _cache;
@override
Future<PageResult<Product>> build() async {
ref.watch(authStateProvider.select((s) => s.user?.shopId));
ref.watch(networkRecoveryCountProvider);
try {
final result = await _fetch();
_cache = result;
return result;
} catch (_) {
if (_cache != null) return _cache!;
rethrow;
}
}
Future<PageResult<Product>> _fetch() {
final repo = ref.read(productRepositoryProvider);
return repo.list(
page: _page,
pageSize: 20,
keyword: _keyword.isEmpty ? null : _keyword,
categoryId: _categoryId,
);
}
void setPage(int page) {
_page = page;
reload();
}
void setKeyword(String keyword) {
_keyword = keyword;
_page = 1;
reload();
}
void setCategoryId(int? categoryId) {
_categoryId = categoryId;
_page = 1;
reload();
}
void reload() {
state = const AsyncValue.loading();
_fetch().then((result) {
_cache = result;
state = AsyncValue.data(result);
}, onError: (e, st) {
if (_cache != null) {
state = AsyncValue.data(_cache!);
} else {
state = AsyncValue.error(e, st);
}
});
}
Future<void> createProduct(Map<String, dynamic> data) async {
final repo = ref.read(productRepositoryProvider);
await repo.create(data);
reload();
}
Future<void> updateProduct(int id, Map<String, dynamic> data) async {
final repo = ref.read(productRepositoryProvider);
await repo.update(id, data);
reload();
}
Future<void> deleteProduct(int id) async {
final repo = ref.read(productRepositoryProvider);
await repo.delete(id);
reload();
}
}