287 lines
9.9 KiB
Dart
287 lines
9.9 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter_localizations/flutter_localizations.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'package:topic/HomePage.dart';
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import 'package:mysql_client/mysql_client.dart';
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import 'package:topic/NoSwipeBackRoute.dart';
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import 'package:topic/RegisterPage.dart';
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import 'package:topic/ForgetPasswordPage.dart';
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import 'package:validators/validators.dart' as validator;
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import 'generated/l10n.dart';
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void main() {
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runApp(
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MaterialApp(
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localizationsDelegates: [
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S.delegate,
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GlobalMaterialLocalizations.delegate,
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GlobalWidgetsLocalizations.delegate,
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GlobalCupertinoLocalizations.delegate,
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], //add
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supportedLocales: S.delegate.supportedLocales, // add
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home: LoginPage(),
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)
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);
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}
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class LoginPage extends StatefulWidget {
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@override
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_LoginPageState createState() => _LoginPageState();
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}
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class _LoginPageState extends State<LoginPage> {
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final TextEditingController _emailController = TextEditingController();
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final TextEditingController _ageController = TextEditingController();
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bool _passwordNotVisible = true;
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@override
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void initState() {
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//初始化
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_setLanguage(); //設定語言
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super.initState();
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_fetchData(); //連資料庫
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_CheckPreLoginInfo(); //確定有先前有無登入
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}
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void _fetchData() async {
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//MYSQL
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final conn = await MySQLConnection.createConnection(
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host: '203.64.84.154',
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// host:'10.0.2.2',
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//127.0.0.1 10.0.2.2
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port: 33061,
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userName: 'root',
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password: 'Topic@2024',
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// password: '0000',
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databaseName: 'care', //testdb
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// databaseName: 'testdb',
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);
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await conn.connect();
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}
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void _CheckPreLoginInfo() async {
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SharedPreferences prefs = await SharedPreferences.getInstance();
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//get user data from share preference else set empty to check not login before
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String loginUserEmail = prefs.getString("email") ?? "";
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//replace screen to HomePage if there are previous data in share preference
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if (loginUserEmail != "") {
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Navigator.pushReplacement(
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context,
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NoSwipeBackRoute(
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builder: (context) => HomePage(
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email: loginUserEmail,
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),
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),
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);
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}
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}
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void _setLanguage() async {
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SharedPreferences prefs = await SharedPreferences.getInstance();
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String preLanguage = prefs.getString("language") ?? "";
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Locale locale = preLanguage == "" ? Localizations.localeOf(context) : Locale(preLanguage);
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S.load(locale);
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setState(() {});
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}
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void _setLoginInfo(String email) async {
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//save user email into share preference to let app can auto login next open
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SharedPreferences prefs = await SharedPreferences.getInstance();
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prefs.setString("email", email);
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}
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void loginBtn() async {
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final conn = await MySQLConnection.createConnection(
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host: '203.64.84.154',
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port: 33061,
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userName: 'root',
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password: 'Topic@2024',
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databaseName: 'care',
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);
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await conn.connect();
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try {
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// 獲取用戶輸入的帳號和密碼
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String email = _emailController.text;
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String password = _ageController.text;
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print('输入的信箱: $email');
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print('输入的密碼: $password');
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// 查詢數據庫，检查是否有匹配的帳號
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IResultSet result;
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if (validator.isEmail(email)) {
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result = await conn.execute(
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'SELECT * FROM HomeLogin WHERE homeEmail = :email AND homePassword = :password',
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{'email': email, 'password': password},
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);
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}
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else{
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result = await conn.execute(
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'SELECT * FROM HomeLogin WHERE homeUserName = :email AND homePassword = :password',
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{'email': email, 'password': password},
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);
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email = result.rows.first.colByName("homeEmail").toString();
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}
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print('查詢結果行數: ${result.rows.length}');
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if (result.rows.isNotEmpty) {
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_emailController.clear();
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_ageController.clear();
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// 如果找到匹配的帳號，登入成功，跳轉到主頁
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_setLoginInfo(email);
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Navigator.pushReplacement(
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context,
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NoSwipeBackRoute(
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builder: (context) => HomePage(
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email: email,
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),
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),
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);
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} else {
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// 没有找到匹配的帳號，提示登入失敗
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('登入失敗：帳號或密碼錯誤')),
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);
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}
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} catch (e) {
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print('資料庫錯誤: $e');
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('登入失敗：系統錯誤')),
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);
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} finally {
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await conn.close();
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}
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}
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@override
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Widget build(BuildContext context) {
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debugPaintSizeEnabled = false;
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//by use PopScope and disable can Pop avoid android user pop back by back button
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return PopScope(
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canPop: false,
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child: Scaffold(
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body: SafeArea(
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child: Center(
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child: SingleChildScrollView(
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 32.0),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Container(
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margin: EdgeInsets.only(bottom: 40), // 添加間距
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height: 100, // 設置logo高度
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child: Icon(
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Icons.account_circle,
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size: 100, // 設置圖標大小
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color: Color(0xFF4FC3F7), // 設置圖標颜色
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),
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),
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Text(
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'全方位照護守護者',
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style: TextStyle(
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fontSize: 32,
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fontWeight: FontWeight.bold,
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color: Colors.black,
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),
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), //全方位照護守護者
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SizedBox(height: 20),
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TextField(
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controller: _emailController, // 绑定電子信箱输入框的控制器
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decoration: InputDecoration(
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border: OutlineInputBorder(),
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prefixIcon: Icon(Icons.email_outlined),
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//https://www.fluttericon.cn/v
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labelText: S.of(context).email_label,
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),
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), //電子信箱
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SizedBox(height: 20),
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TextField(
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controller: _ageController,
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decoration: InputDecoration(
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border: OutlineInputBorder(),
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prefixIcon: Icon(Icons.lock_outlined),
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suffixIcon: IconButton(
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icon: Icon(_passwordNotVisible
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? Icons.visibility
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: Icons.visibility_off),
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onPressed: () {
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setState(
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() {
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_passwordNotVisible = !_passwordNotVisible;
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},
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);
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},
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),
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labelText: S.of(context).password_label,
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),
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obscureText: _passwordNotVisible,
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), //密碼
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SizedBox(height: 20),
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ElevatedButton(
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onPressed: loginBtn,
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/*() {
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Navigator.push(
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context,
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MaterialPageRoute(builder: (context) => HomePage()),
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);
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},*/
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child: Text(S.of(context).login_button),
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style: ElevatedButton.styleFrom(
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backgroundColor: Color(0xFF4FC3F7),
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padding:
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EdgeInsets.symmetric(horizontal: 50, vertical: 15),
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textStyle: TextStyle(fontSize: 18),
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),
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), //登入
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SizedBox(height: 10),
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ElevatedButton(
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onPressed: () {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => RegisterPage()),
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);
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},
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child: Text(S.of(context).register_button),
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style: TextButton.styleFrom(
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// TODO: In physical devices, the background color of the button is transparent
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backgroundColor: Colors.transparent, // 無背景颜色
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textStyle: TextStyle(fontSize: 18),
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shadowColor: Colors.transparent, // 去除陰影
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),
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),
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ElevatedButton(
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onPressed: () {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => ForgetPasswordPage()),
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);
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},
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child: Text(S.of(context).forgot_password),
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style: TextButton.styleFrom(
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backgroundColor: Colors.transparent, // 無背景颜色
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textStyle: TextStyle(fontSize: 18),
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shadowColor: Colors.transparent, // 去除陰影
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),
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),
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],
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),
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),
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),
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),
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),
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),
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);
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}
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}
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