321 lines
13 KiB
Dart
321 lines
13 KiB
Dart
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(
|
||
// 关键修复1：resizeToAvoidBottomInset = false，防止键盘弹出重绘崩溃
|
||
resizeToAvoidBottomInset: false,
|
||
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: SingleChildScrollView(
|
||
// 关键修复2：让滚动视图正常工作
|
||
physics: const AlwaysScrollableScrollPhysics(),
|
||
child: ConstrainedBox(
|
||
constraints: BoxConstraints(
|
||
minHeight: MediaQuery.of(context).size.height - 100,
|
||
),
|
||
child: Center(
|
||
child: Transform.translate(
|
||
offset: const Offset(0, -30),
|
||
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: [
|
||
Container(
|
||
padding: const EdgeInsets.all(20),
|
||
decoration: BoxDecoration(
|
||
color: _pinkColor.withOpacity(0.15),
|
||
shape: BoxShape.circle,
|
||
),
|
||
child: Icon(
|
||
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),
|
||
),
|
||
),
|
||
],
|
||
),
|
||
),
|
||
|
||
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),
|
||
|
||
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),
|
||
|
||
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),
|
||
|
||
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,
|
||
),
|
||
),
|
||
),
|
||
],
|
||
),
|
||
),
|
||
),
|
||
),
|
||
),
|
||
),
|
||
),
|
||
),
|
||
),
|
||
);
|
||
}
|
||
} |