293 lines
9.9 KiB
Dart
293 lines
9.9 KiB
Dart
|
// ignore_for_file: use_build_context_synchronously
|
|||
|
import 'main_tab.dart';
|
|||
|
import 'package:flutter/material.dart';
|
|||
|
|
|||
|
|
|||
|
void main() => runApp(const MyApp());
|
|||
|
|
|||
|
class MyApp extends StatelessWidget {
|
|||
|
const MyApp({super.key});
|
|||
|
|
|||
|
@override
|
|||
|
Widget build(BuildContext context) {
|
|||
|
return MaterialApp(
|
|||
|
title: '登录页面',
|
|||
|
theme: ThemeData(
|
|||
|
primarySwatch: Colors.blue,
|
|||
|
inputDecorationTheme: const InputDecorationTheme(
|
|||
|
border: InputBorder.none,
|
|||
|
contentPadding: EdgeInsets.symmetric(horizontal: 8),
|
|||
|
),
|
|||
|
),
|
|||
|
home: const LoginPage(),
|
|||
|
debugShowCheckedModeBanner: false,
|
|||
|
);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
class LoginPage extends StatefulWidget {
|
|||
|
const LoginPage({super.key});
|
|||
|
|
|||
|
@override
|
|||
|
// ignore: library_private_types_in_public_api
|
|||
|
_LoginPageState createState() => _LoginPageState();
|
|||
|
}
|
|||
|
|
|||
|
class _LoginPageState extends State<LoginPage> {
|
|||
|
final TextEditingController _phoneController = TextEditingController();
|
|||
|
final TextEditingController _passwordController = TextEditingController();
|
|||
|
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
|
|||
|
String _errorMessage = '';
|
|||
|
bool _isLoading = false;
|
|||
|
bool _obscurePassword = true;
|
|||
|
|
|||
|
@override
|
|||
|
Widget build(BuildContext context) {
|
|||
|
return Scaffold(
|
|||
|
backgroundColor: Colors.white,
|
|||
|
body: SingleChildScrollView(
|
|||
|
child: Column(
|
|||
|
children: [
|
|||
|
_buildHeader(),
|
|||
|
|
|||
|
Transform.translate(
|
|||
|
offset: const Offset(0, -60),
|
|||
|
child: Container(
|
|||
|
decoration: const BoxDecoration(
|
|||
|
color: Colors.white,
|
|||
|
borderRadius: BorderRadius.only(
|
|||
|
topLeft: Radius.circular(30),
|
|||
|
topRight: Radius.circular(30),
|
|||
|
),
|
|||
|
),
|
|||
|
child: Padding(
|
|||
|
padding: const EdgeInsets.only(top: 30),
|
|||
|
child: Column(
|
|||
|
children: [
|
|||
|
|
|||
|
const Text(
|
|||
|
'欢迎登录',
|
|||
|
style: TextStyle(
|
|||
|
fontSize: 24,
|
|||
|
fontWeight: FontWeight.bold,
|
|||
|
color: Colors.black,
|
|||
|
shadows: [
|
|||
|
Shadow(
|
|||
|
blurRadius: 10,
|
|||
|
color: Colors.black45,
|
|||
|
offset: Offset(2, 2),
|
|||
|
),
|
|||
|
],
|
|||
|
),
|
|||
|
),
|
|||
|
const SizedBox(height: 12),
|
|||
|
Text(
|
|||
|
'秦皇岛开发区泰盛安管平台',
|
|||
|
style: TextStyle(fontSize: 18, color: Colors.black),
|
|||
|
),
|
|||
|
|
|||
|
// 手机号
|
|||
|
_buildInputSection(
|
|||
|
label: "",
|
|||
|
controller: _phoneController,
|
|||
|
hintText: "请输入用户名",
|
|||
|
keyboardType: TextInputType.phone,
|
|||
|
validator: (value) {
|
|||
|
if (value == null || value.isEmpty) {
|
|||
|
return '请输入用户名';
|
|||
|
}
|
|||
|
// if (!RegExp(r'^1[3-9]\d{9}$').hasMatch(value)) {
|
|||
|
// return '请输入有效的手机号';
|
|||
|
// }
|
|||
|
return null;
|
|||
|
},
|
|||
|
),
|
|||
|
|
|||
|
Padding(padding: const EdgeInsets.symmetric(horizontal: 25),
|
|||
|
child: const Divider(height: 1, thickness: 1),
|
|||
|
),
|
|||
|
// 密码
|
|||
|
_buildInputSection(
|
|||
|
label: "",
|
|||
|
controller: _passwordController,
|
|||
|
hintText: "请输入密码",
|
|||
|
obscureText: _obscurePassword,
|
|||
|
// suffixIcon: IconButton(
|
|||
|
// icon: Icon(
|
|||
|
// _obscurePassword
|
|||
|
// ? Icons.visibility
|
|||
|
// : Icons.visibility_off,
|
|||
|
// color: Colors.grey,
|
|||
|
// ),
|
|||
|
// onPressed: () {
|
|||
|
// setState(() {
|
|||
|
// _obscurePassword = !_obscurePassword;
|
|||
|
// });
|
|||
|
// },
|
|||
|
// ),
|
|||
|
validator: (value) {
|
|||
|
if (value == null || value.isEmpty) {
|
|||
|
return '请输入密码';
|
|||
|
}
|
|||
|
// if (value.length < 6) {
|
|||
|
// return '密码长度至少6位';
|
|||
|
// }
|
|||
|
return null;
|
|||
|
},
|
|||
|
),
|
|||
|
Padding(padding: const EdgeInsets.symmetric(horizontal: 25),
|
|||
|
child: const Divider(height: 1, thickness: 1),
|
|||
|
),
|
|||
|
// 登录按钮
|
|||
|
Padding(
|
|||
|
padding: const EdgeInsets.symmetric(
|
|||
|
horizontal: 25, vertical: 24),
|
|||
|
child: SizedBox(
|
|||
|
width: double.infinity,
|
|||
|
height: 48,
|
|||
|
child: ElevatedButton(
|
|||
|
onPressed: _isLoading ? null : _handleLogin,
|
|||
|
style: ElevatedButton.styleFrom(
|
|||
|
backgroundColor: Colors.blue,
|
|||
|
shape: RoundedRectangleBorder(
|
|||
|
borderRadius: BorderRadius.circular(8),
|
|||
|
),
|
|||
|
),
|
|||
|
child: _isLoading
|
|||
|
? const CircularProgressIndicator(
|
|||
|
color: Colors.white,
|
|||
|
)
|
|||
|
: const Text(
|
|||
|
'登录',
|
|||
|
style: TextStyle(
|
|||
|
fontSize: 18,
|
|||
|
color: Colors.white,
|
|||
|
fontWeight: FontWeight.bold,
|
|||
|
),
|
|||
|
),
|
|||
|
),
|
|||
|
),
|
|||
|
),
|
|||
|
Padding(padding: const EdgeInsets.only(left: 30, right: 30),
|
|||
|
child:Text(" 本平台为互联网非涉密平台,严禁处理、传输国家秘密和工作秘密",
|
|||
|
style: TextStyle(color: Colors.red))
|
|||
|
)
|
|||
|
],
|
|||
|
),
|
|||
|
),
|
|||
|
),
|
|||
|
),
|
|||
|
],
|
|||
|
),
|
|||
|
),
|
|||
|
);
|
|||
|
}
|
|||
|
|
|||
|
// 顶部图片和文字
|
|||
|
Widget _buildHeader() {
|
|||
|
return Stack(
|
|||
|
alignment: Alignment.center,
|
|||
|
children: [
|
|||
|
Image.asset(
|
|||
|
'assets/images/login-bg.png',
|
|||
|
width: double.infinity,
|
|||
|
fit: BoxFit.fitWidth,
|
|||
|
),
|
|||
|
Positioned(
|
|||
|
bottom: 40,
|
|||
|
left: 30,
|
|||
|
child: Column(
|
|||
|
children: [
|
|||
|
|
|||
|
],
|
|||
|
),
|
|||
|
),
|
|||
|
],
|
|||
|
);
|
|||
|
}
|
|||
|
// 输入区域组件
|
|||
|
Widget _buildInputSection({
|
|||
|
required String label,
|
|||
|
required TextEditingController controller,
|
|||
|
required String hintText,
|
|||
|
bool obscureText = false,
|
|||
|
TextInputType keyboardType = TextInputType.text,
|
|||
|
Widget? suffixIcon,
|
|||
|
String? Function(String?)? validator,
|
|||
|
}) {
|
|||
|
return Padding(
|
|||
|
padding: const EdgeInsets.symmetric(horizontal: 25, vertical: 12),
|
|||
|
child: Column(
|
|||
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|||
|
children: [
|
|||
|
Text(
|
|||
|
label,
|
|||
|
style: const TextStyle(
|
|||
|
fontSize: 10,
|
|||
|
fontWeight: FontWeight.w500,
|
|||
|
color: Colors.black87,
|
|||
|
),
|
|||
|
),
|
|||
|
const SizedBox(height: 15),
|
|||
|
TextFormField(
|
|||
|
controller: controller,
|
|||
|
obscureText: obscureText,
|
|||
|
keyboardType: keyboardType,
|
|||
|
validator: validator,
|
|||
|
// 关键属性:让文字在行内垂直居中
|
|||
|
textAlignVertical: TextAlignVertical.center,
|
|||
|
decoration: InputDecoration(
|
|||
|
hintText: hintText,
|
|||
|
suffixIcon: suffixIcon,
|
|||
|
// 去掉默认的上下/左右 padding,让文字贴紧外层的 25 左边距
|
|||
|
isDense: true,
|
|||
|
contentPadding: EdgeInsets.zero,
|
|||
|
),
|
|||
|
),
|
|||
|
],
|
|||
|
),
|
|||
|
);
|
|||
|
}
|
|||
|
|
|||
|
|
|||
|
// 登录处理
|
|||
|
void _handleLogin() {
|
|||
|
// 清除之前的错误信息
|
|||
|
setState(() => _errorMessage = '');
|
|||
|
Navigator.pushReplacement(
|
|||
|
context,
|
|||
|
MaterialPageRoute(builder: (context) => const MainPage()),
|
|||
|
);
|
|||
|
|
|||
|
|
|||
|
|
|||
|
// if (_formKey.currentState?.validate() ?? false) {
|
|||
|
// setState(() => _isLoading = true);
|
|||
|
//
|
|||
|
// // 模拟登录请求
|
|||
|
// Future.delayed(const Duration(seconds: 2), () {
|
|||
|
// setState(() => _isLoading = false);
|
|||
|
// // 登录成功,跳转到主页
|
|||
|
// // Navigator.pushReplacement(
|
|||
|
// // context,
|
|||
|
// // MaterialPageRoute(builder: (context) => const MainPage()),
|
|||
|
// // );
|
|||
|
// // 模拟登录逻辑
|
|||
|
// if (_phoneController.text == "13800138000" &&
|
|||
|
// _passwordController.text == "123456") {
|
|||
|
// // 登录成功,跳转到主页
|
|||
|
// Navigator.pushReplacement(
|
|||
|
// context,
|
|||
|
// MaterialPageRoute(builder: (context) => const MainPage()),
|
|||
|
// );
|
|||
|
// } else {
|
|||
|
// // 登录失败,显示错误信息
|
|||
|
// setState(() {
|
|||
|
// _errorMessage = '手机号或密码错误,请重试';
|
|||
|
// });
|
|||
|
// }
|
|||
|
// });
|
|||
|
// }
|
|||
|
}
|
|||
|
}
|