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spasolreisa
2026-04-16 14:26:52 +08:00
commit 9ce601aa8d
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317
lib/pages/user/login_page.dart Normal file
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import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../../providers/user_provider.dart';
class LoginPage extends StatefulWidget {
const LoginPage({super.key});
@override
State<LoginPage> createState() => _LoginPageState();
}
class _LoginPageState extends State<LoginPage> {
bool isRegisterMode = false;
bool isLoading = false;
final usernameController = TextEditingController();
final passwordController = TextEditingController();
final inviterController = TextEditingController();
String errorMessage = '';
// 定义主题粉色
static const _pinkColor = Color(0xFFFFC0D6);
Future <void> submit() async {
// 基本验证
if (usernameController.text.trim().isEmpty || passwordController.text.trim().isEmpty) {
setState(() => errorMessage = '用户名和密码不能为空');
return;
}
setState(() {
isLoading = true;
errorMessage = '';
});
final userProvider = Provider.of<UserProvider>(context, listen: false);
try {
if (isRegisterMode) {
await userProvider.register(
usernameController.text.trim(),
passwordController.text.trim(),
inviterController.text.trim(),
);
} else {
await userProvider.login(
usernameController.text.trim(),
passwordController.text.trim(),
);
}
if (mounted) {
Navigator.of(context).pop();
}
} catch (e) {
if (mounted) {
setState(() => errorMessage = e.toString().replaceAll('Exception: ', ''));
}
} finally {
if (mounted) {
setState(() => isLoading = false);
}
}
}
@override
void dispose() {
usernameController.dispose();
passwordController.dispose();
inviterController.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
final isDark = theme.brightness == Brightness.dark;
return Scaffold(
backgroundColor: isDark ? Colors.black : Colors.white,
appBar: AppBar(
title: Text(isRegisterMode ? '创建账号' : '欢迎回来'),
centerTitle: true,
elevation: 0,
backgroundColor: Colors.transparent,
),
body: Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
colors: isDark
? [Colors.black, Colors.grey[900]!]
: [Colors.white, Colors.grey[50]!],
),
),
alignment: Alignment.center,
padding: const EdgeInsets.all(24),
child: Transform.translate(
offset: const Offset(0, -30),
child: SingleChildScrollView(
child: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 400),
child: Card(
elevation: 8,
shadowColor: _pinkColor.withOpacity(0.3),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(20),
),
color: isDark ? Colors.grey[850] : Colors.white,
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 32),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
// 头像/图标区域 - 已修改为黑白粉主题
Container(
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(
color: _pinkColor.withOpacity(0.15),
shape: BoxShape.circle,
),
child: Icon(
// 更换为更美观的人物头像类图标
isRegisterMode ? Icons.person_add_rounded : Icons.person_rounded,
size: 48,
color: _pinkColor,
),
),
const SizedBox(height: 24),
Text(
isRegisterMode ? '注册新账号' : '账号登录',
style: TextStyle(
fontSize: 24,
fontWeight: FontWeight.bold,
color: isDark ? Colors.white : Colors.black87,
),
),
const SizedBox(height: 8),
Text(
isRegisterMode ? '请填写以下信息' : '请输入您的凭证以继续',
style: TextStyle(
fontSize: 14,
color: isDark ? Colors.grey[400] : Colors.grey[600],
),
textAlign: TextAlign.center,
),
const SizedBox(height: 24),
if (errorMessage.isNotEmpty)
Container(
width: double.infinity,
padding: const EdgeInsets.all(12),
margin: const EdgeInsets.only(bottom: 16),
decoration: BoxDecoration(
color: Colors.red.withOpacity(0.1),
borderRadius: BorderRadius.circular(8),
border: Border.all(color: Colors.red.withOpacity(0.3)),
),
child: Row(
children: [
const Icon(Icons.error_outline, color: Colors.red, size: 20),
const SizedBox(width: 8),
Expanded(
child: Text(
errorMessage,
style: const TextStyle(color: Colors.red, fontSize: 13),
),
),
],
),
),
// 用户名输入框
TextField(
controller: usernameController,
enabled: !isLoading,
decoration: InputDecoration(
labelText: '用户名',
prefixIcon: const Icon(Icons.person_outline, color: _pinkColor),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: _pinkColor),
),
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: BorderSide(color: _pinkColor.withOpacity(0.5)),
),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: _pinkColor, width: 2),
),
filled: true,
fillColor: isDark ? Colors.grey[800] : Colors.grey[50],
),
),
const SizedBox(height: 16),
// 密码输入框
TextField(
controller: passwordController,
obscureText: true,
enabled: !isLoading,
decoration: InputDecoration(
labelText: isRegisterMode ? '设置密码' : '密码 / TOTP验证码',
prefixIcon: const Icon(Icons.lock_outline, color: _pinkColor),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: _pinkColor),
),
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: BorderSide(color: _pinkColor.withOpacity(0.5)),
),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: _pinkColor, width: 2),
),
filled: true,
fillColor: isDark ? Colors.grey[800] : Colors.grey[50],
),
),
if (isRegisterMode) ...[
const SizedBox(height: 16),
TextField(
controller: inviterController,
enabled: !isLoading,
decoration: InputDecoration(
labelText: '邀请人 ID (可选)',
prefixIcon: const Icon(Icons.card_giftcard_outlined, color: _pinkColor),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: _pinkColor),
),
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: BorderSide(color: _pinkColor.withOpacity(0.5)),
),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: _pinkColor, width: 2),
),
filled: true,
fillColor: isDark ? Colors.grey[800] : Colors.grey[50],
),
),
],
const SizedBox(height: 24),
// 登录/注册按钮
SizedBox(
width: double.infinity,
height: 50,
child: ElevatedButton(
onPressed: isLoading ? null : submit,
style: ElevatedButton.styleFrom(
backgroundColor: _pinkColor,
foregroundColor: Colors.black,
elevation: 2,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12),
),
),
child: isLoading
? const SizedBox(
height: 20,
width: 20,
child: CircularProgressIndicator(
strokeWidth: 2,
valueColor: AlwaysStoppedAnimation<Color>(Colors.black),
),
)
: Text(
isRegisterMode ? '立即注册' : '登录',
style: const TextStyle(fontSize: 16, fontWeight: FontWeight.w600),
),
),
),
const SizedBox(height: 16),
// 切换登录/注册
TextButton(
onPressed: isLoading
? null
: () {
setState(() {
isRegisterMode = !isRegisterMode;
errorMessage = '';
});
},
child: Text(
isRegisterMode
? '已有账号？去登录'
: '没有账号？去注册',
style: const TextStyle(
color: _pinkColor,
fontWeight: FontWeight.w500,
fontSize: 14,
),
),
),
],
),
),
),
),
),
),
),
);
}
}

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lib/pages/user/userpage.dart Normal file
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