Files
jiu/client/lib/screens/auth/login_screen.dart
T
wangjia 37112d6599 feat(client): 登录历史下拉、macOS 兼容修复、UI 优化
- 替换 flutter_secure_storage 为 shared_preferences,解决 macOS Keychain 签名报错
- 登录页门店编号/用户名支持历史下拉(最多5条,LRU 淘汰),使用 Overlay + CompositedTransformFollower 实现浮层
- logout 仅删除 auth token,保留登录历史
- AppShell 时钟抽为独立 _ClockWidget,避免每秒 setState 导致 TabBarView 叠影
- ShellRoute 子路由改用 NoTransitionPage,消除切换页面时的过渡动画叠影
- 新增 auth_state_test、auth_repository_test、login_screen_test 共 14 个单元/Widget 测试

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-05 01:21:40 +08:00

471 lines
18 KiB
Dart

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:go_router/go_router.dart';
import '../../core/auth/auth_state.dart';
import '../../core/theme/app_theme.dart';
import '../../core/storage/login_history.dart';
import '../../repositories/auth_repository.dart';
class LoginScreen extends ConsumerStatefulWidget {
const LoginScreen({super.key});
@override
ConsumerState<LoginScreen> createState() => _LoginScreenState();
}
class _LoginScreenState extends ConsumerState<LoginScreen> {
final _formKey = GlobalKey<FormState>();
final _hotelCodeCtrl = TextEditingController();
final _usernameCtrl = TextEditingController();
final _passwordCtrl = TextEditingController();
final _hotelCodeFocus = FocusNode();
final _usernameFocus = FocusNode();
final _hotelLayerLink = LayerLink();
final _usernameLayerLink = LayerLink();
bool _loading = false;
bool _obscure = true;
String? _errorMessage;
List<String> _hotelCodeHistory = [];
List<String> _usernameHistory = [];
OverlayEntry? _hotelEntry;
OverlayEntry? _usernameEntry;
bool get _hotelShowing => _hotelEntry != null;
bool get _usernameShowing => _usernameEntry != null;
@override
void initState() {
super.initState();
_loadHistory();
_hotelCodeFocus.addListener(() {
if (_hotelCodeFocus.hasFocus && _hotelCodeHistory.isNotEmpty) {
_openDropdown(_hotelLayerLink, _hotelCodeHistory, _hotelCodeCtrl,
isHotel: true);
} else if (!_hotelCodeFocus.hasFocus) {
_closeHotel();
}
});
_usernameFocus.addListener(() {
if (_usernameFocus.hasFocus && _usernameHistory.isNotEmpty) {
_openDropdown(_usernameLayerLink, _usernameHistory, _usernameCtrl,
isHotel: false);
} else if (!_usernameFocus.hasFocus) {
_closeUsername();
}
});
}
Future<void> _loadHistory() async {
final hotels = await LoginHistoryStorage.getHotelCodes();
final users = await LoginHistoryStorage.getUsernames();
if (!mounted) return;
setState(() {
_hotelCodeHistory = hotels;
_usernameHistory = users;
});
// If a field is already focused, open its dropdown now that history loaded
if (_hotelCodeFocus.hasFocus && hotels.isNotEmpty) {
_openDropdown(_hotelLayerLink, hotels, _hotelCodeCtrl, isHotel: true);
}
if (_usernameFocus.hasFocus && users.isNotEmpty) {
_openDropdown(_usernameLayerLink, users, _usernameCtrl, isHotel: false);
}
}
void _openDropdown(
LayerLink link,
List<String> items,
TextEditingController ctrl, {
required bool isHotel,
}) {
if (isHotel) {
if (_hotelEntry != null) return;
_closeUsername();
} else {
if (_usernameEntry != null) return;
_closeHotel();
}
final entry = OverlayEntry(
builder: (_) => Stack(
children: [
// Transparent backdrop — tap outside closes dropdown
Positioned.fill(
child: GestureDetector(
behavior: HitTestBehavior.translucent,
onTap: isHotel ? _closeHotel : _closeUsername,
),
),
// Dropdown positioned below the field
CompositedTransformFollower(
link: link,
targetAnchor: Alignment.bottomLeft,
followerAnchor: Alignment.topLeft,
showWhenUnlinked: false,
child: Material(
elevation: 6,
borderRadius:
const BorderRadius.vertical(bottom: Radius.circular(4)),
child: SizedBox(
width: 320,
child: ListView.separated(
padding: EdgeInsets.zero,
shrinkWrap: true,
physics: const NeverScrollableScrollPhysics(),
itemCount: items.length,
separatorBuilder: (_, __) => const Divider(height: 1),
itemBuilder: (_, i) => GestureDetector(
behavior: HitTestBehavior.opaque,
onTapDown: (_) {
ctrl.text = items[i];
ctrl.selection = TextSelection.collapsed(
offset: items[i].length);
if (isHotel) { _closeHotel(); } else { _closeUsername(); }
},
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 12, vertical: 10),
child: Row(
children: [
const Icon(Icons.history,
size: 14, color: AppTheme.textSecondary),
const SizedBox(width: 8),
Text(items[i],
style: const TextStyle(
fontSize: 14,
color: AppTheme.textPrimary)),
],
),
),
),
),
),
),
),
],
),
);
if (isHotel) {
_hotelEntry = entry;
} else {
_usernameEntry = entry;
}
Overlay.of(context).insert(entry);
setState(() {}); // refresh arrow icon
}
void _closeHotel() {
_hotelEntry?.remove();
_hotelEntry = null;
if (mounted) setState(() {});
}
void _closeUsername() {
_usernameEntry?.remove();
_usernameEntry = null;
if (mounted) setState(() {});
}
@override
void dispose() {
_hotelEntry?.remove();
_usernameEntry?.remove();
_hotelCodeCtrl.dispose();
_usernameCtrl.dispose();
_passwordCtrl.dispose();
_hotelCodeFocus.dispose();
_usernameFocus.dispose();
super.dispose();
}
Future<void> _login() async {
if (!_formKey.currentState!.validate()) return;
setState(() {
_loading = true;
_errorMessage = null;
});
try {
final user = await AuthRepository.login(
hotelCode: _hotelCodeCtrl.text.trim(),
username: _usernameCtrl.text.trim(),
password: _passwordCtrl.text,
);
await LoginHistoryStorage.record(
_hotelCodeCtrl.text.trim(),
_usernameCtrl.text.trim(),
);
await ref.read(authStateProvider.notifier).login(user);
if (mounted) context.go('/stock-in');
} on AuthException catch (e) {
setState(() => _errorMessage = e.message);
} catch (e) {
setState(() => _errorMessage = '登录失败:$e');
} finally {
if (mounted) setState(() => _loading = false);
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: AppTheme.primaryDark,
body: Stack(
children: [
Positioned.fill(
child: CustomPaint(painter: _BackgroundPainter()),
),
SingleChildScrollView(
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: MediaQuery.of(context).size.height,
),
child: Center(
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 40),
child: Card(
elevation: 12,
shadowColor: Colors.black38,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(8)),
child: Container(
width: 400,
padding: const EdgeInsets.all(40),
child: Form(
key: _formKey,
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
// Logo
Container(
width: 80,
height: 80,
decoration: BoxDecoration(
gradient: const LinearGradient(
colors: [
AppTheme.primaryLight,
AppTheme.primaryDark
],
begin: Alignment.topLeft,
end: Alignment.bottomRight,
),
borderRadius: BorderRadius.circular(12),
boxShadow: [
BoxShadow(
color: AppTheme.primary.withAlpha(102),
blurRadius: 12,
offset: const Offset(0, 4),
),
],
),
child: const Icon(Icons.wine_bar,
color: Colors.white, size: 44),
),
const SizedBox(height: 20),
const Text(
'酒库管理系统',
style: TextStyle(
fontSize: 24,
fontWeight: FontWeight.w700,
color: AppTheme.primaryDark,
letterSpacing: 1,
),
),
const SizedBox(height: 6),
const Text(
'酒店仓库管理解决方案',
style: TextStyle(
fontSize: 13,
color: AppTheme.textSecondary),
),
const SizedBox(height: 32),
// Hotel code field
CompositedTransformTarget(
link: _hotelLayerLink,
child: TextFormField(
controller: _hotelCodeCtrl,
focusNode: _hotelCodeFocus,
decoration: InputDecoration(
labelText: '门店编号',
hintText: '请输入门店编号',
prefixIcon: const Icon(
Icons.store_outlined, size: 20),
suffixIcon: _hotelCodeHistory.isNotEmpty
? Icon(
_hotelShowing
? Icons.arrow_drop_up
: Icons.arrow_drop_down,
color: AppTheme.textSecondary,
)
: null,
),
validator: (v) =>
(v == null || v.isEmpty)
? '请输入门店编号'
: null,
textInputAction: TextInputAction.next,
),
),
const SizedBox(height: 14),
// Username field
CompositedTransformTarget(
link: _usernameLayerLink,
child: TextFormField(
controller: _usernameCtrl,
focusNode: _usernameFocus,
decoration: InputDecoration(
labelText: '用户名',
hintText: '请输入用户名',
prefixIcon: const Icon(
Icons.person_outline, size: 20),
suffixIcon: _usernameHistory.isNotEmpty
? Icon(
_usernameShowing
? Icons.arrow_drop_up
: Icons.arrow_drop_down,
color: AppTheme.textSecondary,
)
: null,
),
validator: (v) =>
(v == null || v.isEmpty)
? '请输入用户名'
: null,
textInputAction: TextInputAction.next,
),
),
const SizedBox(height: 14),
// Password
TextFormField(
controller: _passwordCtrl,
obscureText: _obscure,
decoration: InputDecoration(
labelText: '密码',
hintText: '请输入密码',
prefixIcon: const Icon(Icons.lock_outline,
size: 20),
suffixIcon: IconButton(
icon: Icon(
_obscure
? Icons.visibility_off
: Icons.visibility,
size: 20),
onPressed: () =>
setState(() => _obscure = !_obscure),
),
),
validator: (v) =>
(v == null || v.isEmpty)
? '请输入密码'
: null,
onFieldSubmitted: (_) => _login(),
),
// Inline error
if (_errorMessage != null) ...[
const SizedBox(height: 12),
Container(
width: double.infinity,
padding: const EdgeInsets.symmetric(
horizontal: 12, vertical: 10),
decoration: BoxDecoration(
color: AppTheme.danger.withAlpha(15),
borderRadius: BorderRadius.circular(4),
border: Border.all(
color: AppTheme.danger.withAlpha(80)),
),
child: Row(
children: [
const Icon(Icons.error_outline,
color: AppTheme.danger, size: 16),
const SizedBox(width: 8),
Expanded(
child: Text(
_errorMessage!,
style: const TextStyle(
color: AppTheme.danger,
fontSize: 13),
),
),
],
),
),
],
const SizedBox(height: 24),
SizedBox(
width: double.infinity,
height: 46,
child: ElevatedButton(
onPressed: _loading ? null : _login,
style: ElevatedButton.styleFrom(
shape: RoundedRectangleBorder(
borderRadius:
BorderRadius.circular(4)),
),
child: _loading
? const SizedBox(
width: 20,
height: 20,
child: CircularProgressIndicator(
strokeWidth: 2,
color: Colors.white))
: const Text('登 录',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.w500,
letterSpacing: 2)),
),
),
],
),
),
),
),
),
),
),
),
Positioned(
bottom: 16,
left: 0,
right: 0,
child: Center(
child: Text(
'© 2026 酒库管理系统 v1.0.0',
style: TextStyle(
color: Colors.white.withAlpha(102), fontSize: 12),
),
),
),
],
),
);
}
}
class _BackgroundPainter extends CustomPainter {
@override
void paint(Canvas canvas, Size size) {
final paint = Paint()
..color = const Color(0xFF1976D2).withAlpha(38)
..style = PaintingStyle.fill;
canvas.drawCircle(
Offset(size.width * 0.1, size.height * 0.2), 180, paint);
canvas.drawCircle(
Offset(size.width * 0.9, size.height * 0.8), 220, paint);
paint.color = const Color(0xFF0D47A1).withAlpha(26);
canvas.drawCircle(
Offset(size.width * 0.8, size.height * 0.1), 140, paint);
}
@override
bool shouldRepaint(covariant CustomPainter oldDelegate) => false;
}