This commit is contained in:
2026-03-23 00:08:19 +08:00
parent ca33e0d3c5
commit 2fdd842b89
11 changed files with 1196 additions and 380 deletions

View File

@@ -0,0 +1,74 @@
/// API 响应状态码
class ResponseCode {
static const String success = '0000';
static const String unauthorized = '0002';
}
/// API 响应模型
class ApiResponse<T> {
final bool success;
final String? message;
final T? data;
final String? code;
ApiResponse({
required this.success,
this.message,
this.data,
this.code,
});
factory ApiResponse.success(T data, [String? message]) {
return ApiResponse(
success: true,
data: data,
message: message,
code: ResponseCode.success,
);
}
factory ApiResponse.fail(String message, [String? code]) {
return ApiResponse(
success: false,
message: message,
code: code,
);
}
factory ApiResponse.unauthorized(String message) {
return ApiResponse(
success: false,
message: message,
code: ResponseCode.unauthorized,
);
}
factory ApiResponse.fromJson(
Map<String, dynamic> json,
T Function(dynamic)? fromJsonT,
) {
final code = json['code'] as String? ?? '';
final msg = json['msg'] as String? ?? '';
return switch (code) {
ResponseCode.success => _parseSuccess(json, msg, fromJsonT),
ResponseCode.unauthorized => ApiResponse.unauthorized(msg),
_ => ApiResponse.fail(msg, code),
};
}
static ApiResponse<T> _parseSuccess<T>(
Map<String, dynamic> json,
String msg,
T Function(dynamic)? fromJsonT,
) {
final data = json['data'];
if (fromJsonT != null && data != null) {
return ApiResponse.success(fromJsonT(data), msg);
}
return ApiResponse.success(data as T, msg);
}
bool get isSuccess => success;
bool get isUnauthorized => code == ResponseCode.unauthorized;
}

View File

@@ -1,65 +1,13 @@
import 'package:dio/dio.dart';
import '../storage/local_storage.dart';
import 'api_exception.dart';
import 'api_response.dart';
/// API 响应模型
class ApiResponse<T> {
final bool success;
final String? message;
final T? data;
final String? code;
ApiResponse({
required this.success,
this.message,
this.data,
this.code,
});
factory ApiResponse.success(T data, [String? message]) {
return ApiResponse(
success: true,
data: data,
message: message,
code: '0000',
);
}
factory ApiResponse.fail(String message, [String? code]) {
return ApiResponse(
success: false,
message: message,
code: code,
);
}
factory ApiResponse.unauthorized(String message) {
return ApiResponse(
success: false,
message: message,
code: '0002',
);
}
factory ApiResponse.fromJson(
Map<String, dynamic> json,
T Function(dynamic)? fromJsonT,
) {
final code = json['code'] as String? ?? '';
final msg = json['msg'] as String? ?? '';
if (code == '0000') {
final data = json['data'];
if (fromJsonT != null && data != null) {
return ApiResponse.success(fromJsonT(data), msg);
}
return ApiResponse.success(data as T, msg);
} else if (code == '0002') {
return ApiResponse.unauthorized(msg);
} else {
return ApiResponse.fail(msg, code);
}
}
/// 网络配置常量
class NetworkConfig {
static const String baseUrl = 'http://localhost:5010';
static const Duration connectTimeout = Duration(seconds: 30);
static const Duration receiveTimeout = Duration(seconds: 30);
}
/// Dio 网络客户端
@@ -67,23 +15,30 @@ class DioClient {
late final Dio _dio;
DioClient() {
_dio = Dio(BaseOptions(
baseUrl: 'http://localhost:5010',
connectTimeout: const Duration(seconds: 30),
receiveTimeout: const Duration(seconds: 30),
headers: {
'Content-Type': 'application/json',
},
));
_dio = _createDio();
_setupInterceptors();
}
_dio.interceptors.add(_AuthInterceptor());
_dio.interceptors.add(LogInterceptor(
requestHeader: false,
responseHeader: false,
error: true,
Dio _createDio() {
return Dio(BaseOptions(
baseUrl: NetworkConfig.baseUrl,
connectTimeout: NetworkConfig.connectTimeout,
receiveTimeout: NetworkConfig.receiveTimeout,
headers: {'Content-Type': 'application/json'},
));
}
void _setupInterceptors() {
_dio.interceptors.addAll([
_AuthInterceptor(),
LogInterceptor(
requestHeader: false,
responseHeader: false,
error: true,
),
]);
}
/// GET 请求
Future<ApiResponse<T>> get<T>(
String path, {
@@ -112,7 +67,6 @@ class DioClient {
}
}
/// 处理响应
ApiResponse<T> _handleResponse<T>(
Response response,
T Function(dynamic)? fromJson,
@@ -124,13 +78,39 @@ class DioClient {
return ApiResponse.fail('响应数据格式错误');
}
/// 处理错误
ApiResponse<T> _handleError<T>(DioException e) {
if (e.response?.statusCode == 401) {
LocalStorage.clearUserData();
if (_isUnauthorized(e)) {
_clearUserData();
return ApiResponse.unauthorized('登录已过期,请重新登录');
}
return ApiResponse.fail(e.message ?? '网络请求失败');
final message = _getErrorMessage(e);
return ApiResponse.fail(message);
}
bool _isUnauthorized(DioException e) {
return e.response?.statusCode == 401;
}
void _clearUserData() {
LocalStorage.clearUserData();
}
String _getErrorMessage(DioException e) {
switch (e.type) {
case DioExceptionType.connectionTimeout:
return '连接超时,请检查网络';
case DioExceptionType.sendTimeout:
return '发送超时,请重试';
case DioExceptionType.receiveTimeout:
return '响应超时,请重试';
case DioExceptionType.connectionError:
return '网络连接失败';
case DioExceptionType.badResponse:
return '服务器错误 (${e.response?.statusCode})';
default:
return e.message ?? '网络请求失败';
}
}
}
@@ -139,7 +119,7 @@ class _AuthInterceptor extends Interceptor {
@override
void onRequest(RequestOptions options, RequestInterceptorHandler handler) {
final token = LocalStorage.getToken();
if (token != null && token.isNotEmpty) {
if (token?.isNotEmpty == true) {
options.headers['Authorization'] = 'Bearer $token';
}
super.onRequest(options, handler);

View File

@@ -19,12 +19,9 @@ import 'ui/pages/main/main_page.dart';
void main() async {
WidgetsFlutterBinding.ensureInitialized();
// 禁用 Provider 类型检查
Provider.debugCheckInvalidValueType = null;
// 初始化本地存储
final prefs = await SharedPreferences.getInstance();
await SharedPreferences.getInstance();
await LocalStorage.init();
runApp(const MyApp());
@@ -36,84 +33,117 @@ class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MultiProvider(
providers: [
// 服务
Provider<DioClient>(create: (_) => DioClient()),
ProxyProvider<DioClient, UserService>(
create: (_) => UserService(DioClient()),
update: (_, client, previous) => previous ?? UserService(client),
providers: _buildProviders(),
child: AuthNavigator(
child: ShadApp.custom(
themeMode: ThemeMode.dark,
darkTheme: ShadThemeData(
brightness: Brightness.dark,
colorScheme: const ShadSlateColorScheme.dark(),
),
appBuilder: _buildMaterialApp,
),
ProxyProvider<DioClient, MarketService>(
create: (_) => MarketService(DioClient()),
update: (_, client, previous) => previous ?? MarketService(client),
),
ProxyProvider<DioClient, TradeService>(
create: (_) => TradeService(DioClient()),
update: (_, client, previous) => previous ?? TradeService(client),
),
ProxyProvider<DioClient, AssetService>(
create: (_) => AssetService(DioClient()),
update: (_, client, previous) => previous ?? AssetService(client),
),
ProxyProvider<DioClient, FundService>(
create: (_) => FundService(DioClient()),
update: (_, client, previous) => previous ?? FundService(client),
),
// 状态管理
ProxyProvider2<UserService, DioClient, AuthProvider>(
create: (_) => AuthProvider(UserService(DioClient())),
update: (_, userService, __, previous) =>
previous ?? AuthProvider(userService),
),
ProxyProvider<MarketService, MarketProvider>(
create: (_) => MarketProvider(MarketService(DioClient())),
update: (_, service, previous) =>
previous ?? MarketProvider(service),
),
ProxyProvider2<AssetService, FundService, AssetProvider>(
create: (_) =>
AssetProvider(AssetService(DioClient()), FundService(DioClient())),
update: (_, assetService, fundService, previous) =>
previous ?? AssetProvider(assetService, fundService),
),
],
child: ShadApp.custom(
themeMode: ThemeMode.dark,
darkTheme: ShadThemeData(
brightness: Brightness.dark,
colorScheme: const ShadSlateColorScheme.dark(),
),
appBuilder: (context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
theme: Theme.of(context),
localizationsDelegates: const [
GlobalShadLocalizations.delegate,
GlobalMaterialLocalizations.delegate,
GlobalCupertinoLocalizations.delegate,
GlobalWidgetsLocalizations.delegate,
],
builder: (context, child) {
return ShadAppBuilder(child: child!);
},
home: Consumer<AuthProvider>(
builder: (context, auth, _) {
if (auth.isLoading) {
return const Scaffold(
body: Center(
child: CircularProgressIndicator(),
),
);
}
if (auth.isLoggedIn) {
return const MainPage();
}
return const LoginPage();
},
),
);
},
),
);
}
List<SingleChildWidget> _buildProviders() {
final dioClient = DioClient();
return [
// Services
Provider<DioClient>.value(value: dioClient),
Provider<UserService>(create: (_) => UserService(dioClient)),
Provider<MarketService>(create: (_) => MarketService(dioClient)),
Provider<TradeService>(create: (_) => TradeService(dioClient)),
Provider<AssetService>(create: (_) => AssetService(dioClient)),
Provider<FundService>(create: (_) => FundService(dioClient)),
// State Management
ChangeNotifierProvider<AuthProvider>(
create: (ctx) => AuthProvider(ctx.read<UserService>()),
),
ChangeNotifierProvider<MarketProvider>(
create: (ctx) => MarketProvider(ctx.read<MarketService>()),
),
ChangeNotifierProvider<AssetProvider>(
create: (ctx) => AssetProvider(
ctx.read<AssetService>(),
ctx.read<FundService>(),
),
),
];
}
Widget _buildMaterialApp(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
theme: Theme.of(context),
localizationsDelegates: const [
GlobalShadLocalizations.delegate,
GlobalMaterialLocalizations.delegate,
GlobalCupertinoLocalizations.delegate,
GlobalWidgetsLocalizations.delegate,
],
builder: (context, child) => ShadAppBuilder(child: child!),
home: _buildHome(),
);
}
Widget _buildHome() {
return Consumer<AuthProvider>(
builder: (context, auth, _) {
if (auth.isLoading) {
return const Scaffold(
body: Center(child: CircularProgressIndicator()),
);
}
return auth.isLoggedIn ? const MainPage() : const LoginPage();
},
);
}
}
/// 认证路由守卫 - 监听认证状态并自动导航
class AuthNavigator extends StatefulWidget {
final Widget child;
const AuthNavigator({super.key, required this.child});
@override
State<AuthNavigator> createState() => _AuthNavigatorState();
}
class _AuthNavigatorState extends State<AuthNavigator> {
bool? _wasLoggedIn;
@override
void didChangeDependencies() {
super.didChangeDependencies();
final isLoggedIn = context.watch<AuthProvider>().isLoggedIn;
if (_wasLoggedIn == null) {
_wasLoggedIn = isLoggedIn;
return;
}
if (_wasLoggedIn != isLoggedIn) {
_wasLoggedIn = isLoggedIn;
_navigateToAuthPage(isLoggedIn);
}
}
void _navigateToAuthPage(bool isLoggedIn) {
WidgetsBinding.instance.addPostFrameCallback((_) {
if (!mounted) return;
Navigator.of(context).pushAndRemoveUntil(
MaterialPageRoute(
builder: (_) => isLoggedIn ? const MainPage() : const LoginPage(),
),
(route) => false,
);
});
}
@override
Widget build(BuildContext context) => widget.child;
}

View File

@@ -1,4 +1,3 @@
import 'dart:convert';
import 'package:flutter/material.dart';
import '../core/network/dio_client.dart';
import '../core/storage/local_storage.dart';
@@ -15,7 +14,7 @@ class AuthProvider extends ChangeNotifier {
String? _token;
AuthProvider(this._userService) {
_checkAuth();
_initAuth();
}
// Getters
@@ -24,100 +23,81 @@ class AuthProvider extends ChangeNotifier {
bool get isLoading => _isLoading;
String? get token => _token;
/// 检查登录状态
Future<void> _checkAuth() async {
_isLoading = true;
notifyListeners();
/// 初始化认证状态
Future<void> _initAuth() async {
_token = LocalStorage.getToken();
_isLoggedIn = _token != null && _token!.isNotEmpty;
_isLoggedIn = _token?.isNotEmpty == true;
if (_isLoggedIn) {
final userJson = LocalStorage.getUserInfo();
if (userJson != null) {
_user = User.fromJson(userJson);
}
_user = _loadUserFromStorage();
}
_isLoading = false;
notifyListeners();
}
User? _loadUserFromStorage() {
final userJson = LocalStorage.getUserInfo();
return userJson != null ? User.fromJson(userJson) : null;
}
/// 登录
Future<ApiResponse<User>> login(String username, String password) async {
_isLoading = true;
notifyListeners();
try {
final response = await _userService.login(username, password);
if (response.success && response.data != null) {
_token = response.data!['token'] as String?;
final userJson = response.data!['user'] as Map<String, dynamic>? ??
response.data!['userInfo'] as Map<String, dynamic>?;
if (_token != null) {
await LocalStorage.saveToken(_token!);
}
if (userJson != null) {
await LocalStorage.saveUserInfo(userJson);
_user = User.fromJson(userJson);
}
_isLoggedIn = true;
notifyListeners();
return ApiResponse.success(_user!, response.message);
}
_isLoading = false;
notifyListeners();
return ApiResponse.fail(response.message ?? '登录失败');
} catch (e) {
_isLoading = false;
notifyListeners();
return ApiResponse.fail('登录失败: $e');
}
Future<ApiResponse<User>> login(String username, String password) {
return _authenticate(() => _userService.login(username, password));
}
/// 注册
Future<ApiResponse<User>> register(String username, String password) async {
_isLoading = true;
notifyListeners();
Future<ApiResponse<User>> register(String username, String password) {
return _authenticate(() => _userService.register(username, password));
}
/// 统一认证处理
Future<ApiResponse<User>> _authenticate(
Future<ApiResponse<Map<String, dynamic>>> Function() action,
) async {
_setLoading(true);
try {
final response = await _userService.register(username, password);
final response = await action();
if (response.success && response.data != null) {
_token = response.data!['token'] as String?;
final userJson = response.data!['userInfo'] as Map<String, dynamic>?;
if (_token != null) {
await LocalStorage.saveToken(_token!);
}
if (userJson != null) {
await LocalStorage.saveUserInfo(userJson);
_user = User.fromJson(userJson);
}
_isLoggedIn = true;
notifyListeners();
return ApiResponse.success(_user!, response.message);
if (!response.success || response.data == null) {
return ApiResponse.fail(response.message ?? '操作失败');
}
_isLoading = false;
notifyListeners();
return ApiResponse.fail(response.message ?? '注册失败');
return _handleAuthSuccess(response.data!, response.message);
} catch (e) {
_isLoading = false;
notifyListeners();
return ApiResponse.fail('注册失败: $e');
return ApiResponse.fail('操作失败: $e');
} finally {
_setLoading(false);
}
}
/// 处理认证成功
ApiResponse<User> _handleAuthSuccess(
Map<String, dynamic> data,
String? message,
) {
_token = data['token'] as String?;
final userJson = data['user'] as Map<String, dynamic>? ??
data['userInfo'] as Map<String, dynamic>?;
if (_token != null) {
LocalStorage.saveToken(_token!);
}
if (userJson != null) {
LocalStorage.saveUserInfo(userJson);
_user = User.fromJson(userJson);
}
_isLoggedIn = true;
return _user != null
? ApiResponse.success(_user!, message)
: ApiResponse.fail('用户信息获取失败');
}
/// 退出登录
Future<void> logout() async {
_isLoading = true;
notifyListeners();
_setLoading(true);
try {
await _userService.logout();
@@ -125,12 +105,15 @@ class AuthProvider extends ChangeNotifier {
// 忽略退出登录的接口错误
}
await LocalStorage.clearUserData();
_clearAuthState();
_setLoading(false);
}
void _clearAuthState() {
LocalStorage.clearUserData();
_user = null;
_token = null;
_isLoggedIn = false;
_isLoading = false;
notifyListeners();
}
/// 刷新用户信息
@@ -148,4 +131,9 @@ class AuthProvider extends ChangeNotifier {
// 忽略错误
}
}
void _setLoading(bool value) {
_isLoading = value;
notifyListeners();
}
}

View File

@@ -3,6 +3,7 @@ import 'package:shadcn_ui/shadcn_ui.dart';
import 'package:provider/provider.dart';
import '../../../providers/auth_provider.dart';
import '../main/main_page.dart';
import 'register_page.dart';
class LoginPage extends StatefulWidget {
@@ -15,6 +16,10 @@ class LoginPage extends StatefulWidget {
class _LoginPageState extends State<LoginPage> {
final formKey = GlobalKey<ShadFormState>();
static const _maxFormWidth = 400.0;
static const _logoSize = 64.0;
static const _loadingIndicatorSize = 16.0;
@override
Widget build(BuildContext context) {
final theme = ShadTheme.of(context);
@@ -22,7 +27,7 @@ class _LoginPageState extends State<LoginPage> {
return Scaffold(
body: Center(
child: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 400),
constraints: const BoxConstraints(maxWidth: _maxFormWidth),
child: Padding(
padding: const EdgeInsets.all(24),
child: ShadForm(
@@ -31,135 +36,15 @@ class _LoginPageState extends State<LoginPage> {
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
// Logo 和标题
Icon(
LucideIcons.trendingUp,
size: 64,
color: theme.colorScheme.primary,
),
const SizedBox(height: 24),
Text(
'模拟所',
style: theme.textTheme.h1,
textAlign: TextAlign.center,
),
const SizedBox(height: 8),
Text(
'虚拟货币模拟交易平台',
style: theme.textTheme.muted,
textAlign: TextAlign.center,
),
_buildHeader(theme),
const SizedBox(height: 48),
// 用户名输入
ShadInputFormField(
id: 'username',
label: const Text('用户名'),
placeholder: const Text('请输入用户名'),
leading: const Icon(LucideIcons.user),
validator: (value) {
if (value == null || value.isEmpty) {
return '请输入用户名';
}
if (value.length < 3) {
return '用户名至少 3 个字符';
}
return null;
},
),
_buildUsernameField(),
const SizedBox(height: 16),
// 密码输入
ShadInputFormField(
id: 'password',
label: const Text('密码'),
placeholder: const Text('请输入密码'),
obscureText: true,
leading: const Icon(LucideIcons.lock),
validator: (value) {
if (value == null || value.isEmpty) {
return '请输入密码';
}
if (value.length < 6) {
return '密码至少 6 个字符';
}
return null;
},
),
_buildPasswordField(),
const SizedBox(height: 24),
// 登录按钮
Consumer<AuthProvider>(
builder: (context, auth, _) {
return ShadButton(
onPressed: auth.isLoading
? null
: () async {
if (formKey.currentState!.saveAndValidate()) {
final values = formKey.currentState!.value;
final response = await auth.login(
values['username'],
values['password'],
);
// 登录成功后Provider 会自动更新状态
// MaterialApp 的 Consumer 会自动切换到 MainPage
if (!response.success && mounted) {
// 只在失败时显示错误
showShadDialog(
context: context,
builder: (context) => ShadDialog.alert(
title: const Text('登录失败'),
description: Text(
response.message ?? '用户名或密码错误',
),
actions: [
ShadButton(
child: const Text('确定'),
onPressed: () =>
Navigator.of(context).pop(),
),
],
),
);
}
}
},
child: auth.isLoading
? const SizedBox.square(
dimension: 16,
child: CircularProgressIndicator(
strokeWidth: 2,
color: Colors.white,
),
)
: const Text('登录'),
);
},
),
_buildLoginButton(),
const SizedBox(height: 16),
// 注册链接
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
'还没有账号?',
style: theme.textTheme.muted,
),
ShadButton.link(
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => RegisterPage(),
),
);
},
child: const Text('立即注册'),
),
],
),
_buildRegisterLink(theme),
],
),
),
@@ -168,4 +53,154 @@ class _LoginPageState extends State<LoginPage> {
),
);
}
Widget _buildHeader(ShadThemeData theme) {
return Column(
children: [
Icon(
LucideIcons.trendingUp,
size: _logoSize,
color: theme.colorScheme.primary,
),
const SizedBox(height: 24),
Text(
'模拟所',
style: theme.textTheme.h1,
textAlign: TextAlign.center,
),
const SizedBox(height: 8),
Text(
'虚拟货币模拟交易平台',
style: theme.textTheme.muted,
textAlign: TextAlign.center,
),
],
);
}
Widget _buildUsernameField() {
return ShadInputFormField(
id: 'username',
label: const Text('用户名'),
placeholder: const Text('请输入用户名'),
leading: const Icon(LucideIcons.user),
validator: _validateUsername,
);
}
Widget _buildPasswordField() {
return ShadInputFormField(
id: 'password',
label: const Text('密码'),
placeholder: const Text('请输入密码'),
obscureText: true,
leading: const Icon(LucideIcons.lock),
validator: _validatePassword,
);
}
Widget _buildLoginButton() {
return Consumer<AuthProvider>(
builder: (context, auth, _) {
return ShadButton(
onPressed: auth.isLoading ? null : () => _handleLogin(auth),
child: auth.isLoading
? const SizedBox.square(
dimension: _loadingIndicatorSize,
child: CircularProgressIndicator(
strokeWidth: 2,
color: Colors.white,
),
)
: const Text('登录'),
);
},
);
}
Widget _buildRegisterLink(ShadThemeData theme) {
return Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
'还没有账号?',
style: theme.textTheme.muted,
),
ShadButton.link(
onPressed: _navigateToRegister,
child: const Text('立即注册'),
),
],
);
}
// Validators
String? _validateUsername(String? value) {
if (value == null || value.isEmpty) {
return '请输入用户名';
}
if (value.length < 3) {
return '用户名至少 3 个字符';
}
return null;
}
String? _validatePassword(String? value) {
if (value == null || value.isEmpty) {
return '请输入密码';
}
if (value.length < 6) {
return '密码至少 6 个字符';
}
return null;
}
// Actions
Future<void> _handleLogin(AuthProvider auth) async {
if (!formKey.currentState!.saveAndValidate()) return;
final values = formKey.currentState!.value;
final response = await auth.login(
values['username'],
values['password'],
);
if (!mounted) return;
if (response.success) {
_navigateToMainPage();
} else {
_showErrorDialog(response.message ?? '用户名或密码错误');
}
}
void _navigateToMainPage() {
Navigator.of(context).pushAndRemoveUntil(
MaterialPageRoute(builder: (_) => const MainPage()),
(route) => false,
);
}
void _navigateToRegister() {
Navigator.push(
context,
MaterialPageRoute(builder: (context) => const RegisterPage()),
);
}
void _showErrorDialog(String message) {
showShadDialog(
context: context,
builder: (context) => ShadDialog.alert(
title: const Text('登录失败'),
description: Text(message),
actions: [
ShadButton(
child: const Text('确定'),
onPressed: () => Navigator.of(context).pop(),
),
],
),
);
}
}

View File

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
import 'package:shadcn_ui/shadcn_ui.dart';
import 'package:provider/provider.dart';
import '../../../providers/auth_provider.dart';
import '../auth/login_page.dart';
/// 我的页面 - 使用 shadcn_ui 现代化设计
class MinePage extends StatefulWidget {
@@ -275,8 +276,14 @@ class _MinePageState extends State<MinePage> with AutomaticKeepAliveClientMixin
onPressed: () async {
Navigator.of(context).pop();
await auth.logout();
// 登出成功,直接导航到登录页
if (context.mounted) {
Navigator.pushReplacementNamed(context, '/login');
Navigator.of(context).pushAndRemoveUntil(
MaterialPageRoute(
builder: (_) => const LoginPage(),
),
(route) => false,
);
}
},
),