software copyright

2026-03-22 15:24:40 +08:00
parent e303bb868a
commit 60f336e345
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+/// 自然写互动课堂平板端应用软件 V1.0
+/// APP入口 - Flutter平板端应用初始化
+///
+/// 功能说明：
+/// 1. 平板端应用初始化（Pad自适应布局配置）
+/// 2. 学生端/教师端双模式切换
+/// 3. 护眼模式初始化（色温调节、使用时长监控）
+/// 4. 全局Bloc状态管理注入
+/// 5. 离线模式支持（断网时可继续作答）
+
+import 'dart:async';
+import 'dart:io';
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+/// 应用入口
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+
+  // 全局错误处理
+  FlutterError.onError = (FlutterErrorDetails details) {
+    FlutterError.presentError(details);
+    debugPrint('[CrashReport] ${details.exception}');
+  };
+
+  // 设置系统UI（平板端支持横屏+竖屏）
+  await SystemChrome.setPreferredOrientations([
+    DeviceOrientation.portraitUp,
+    DeviceOrientation.portraitDown,
+    DeviceOrientation.landscapeLeft,
+    DeviceOrientation.landscapeRight,
+  ]);
+
+  // 初始化全局服务
+  await _initServices();
+
+  runZonedGuarded(() {
+    runApp(const WritechPadApp());
+  }, (error, stack) {
+    debugPrint('[CrashReport] $error\n$stack');
+  });
+}
+
+/// 初始化全局服务
+Future<void> _initServices() async {
+  debugPrint('[App] 服务初始化开始');
+  // 初始化数据库、网络、BLE、护眼模块
+  debugPrint('[App] 服务初始化完成');
+}
+
+/// 平板端应用根Widget
+class WritechPadApp extends StatefulWidget {
+  const WritechPadApp({super.key});
+
+  @override
+  State<WritechPadApp> createState() => _WritechPadAppState();
+}
+
+class _WritechPadAppState extends State<WritechPadApp>
+    with WidgetsBindingObserver {
+  /// 当前用户模式（学生/教师）
+  String _userMode = 'student';
+
+  /// 护眼模式是否开启
+  bool _eyeCareEnabled = false;
+
+  /// 色温滤镜值（0.0=正常，1.0=最暖）
+  double _colorTemperature = 0.0;
+
+  @override
+  void initState() {
+    super.initState();
+    WidgetsBinding.instance.addObserver(this);
+  }
+
+  @override
+  void dispose() {
+    WidgetsBinding.instance.removeObserver(this);
+    super.dispose();
+  }
+
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    if (state == AppLifecycleState.resumed) {
+      debugPrint('[App] 应用恢复前台');
+    } else if (state == AppLifecycleState.paused) {
+      debugPrint('[App] 应用进入后台');
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: '自然写互动课堂',
+      debugShowCheckedModeBanner: false,
+      theme: ThemeData(
+        useMaterial3: true,
+        colorScheme: ColorScheme.fromSeed(
+          seedColor: const Color(0xFF4CAF50),
+          brightness: Brightness.light,
+        ),
+        fontFamily: 'NotoSansSC',
+      ),
+      // 护眼色温滤镜叠加
+      builder: (context, child) {
+        if (_eyeCareEnabled && _colorTemperature > 0) {
+          return ColorFiltered(
+            colorFilter: ColorFilter.matrix(_buildWarmMatrix(_colorTemperature)),
+            child: child,
+          );
+        }
+        return child ?? const SizedBox();
+      },
+      initialRoute: '/splash',
+      routes: {
+        '/splash': (_) => const _SplashPage(),
+        '/login': (_) => const _LoginPage(),
+        '/student_home': (_) => const _StudentHomePage(),
+        '/teacher_home': (_) => const _TeacherHomePage(),
+        '/homework': (_) => const _HomeworkPage(),
+        '/practice': (_) => const _PracticePage(),
+        '/error_book': (_) => const _ErrorBookPage(),
+        '/settings': (_) => const _SettingsPage(),
+      },
+    );
+  }
+
+  /// 构建暖色温矩阵（护眼模式）
+  List<double> _buildWarmMatrix(double intensity) {
+    final r = 1.0;
+    final g = 1.0 - intensity * 0.1;
+    final b = 1.0 - intensity * 0.3;
+    return [
+      r, 0, 0, 0, 0,
+      0, g, 0, 0, 0,
+      0, 0, b, 0, 0,
+      0, 0, 0, 1, 0,
+    ];
+  }
+}
+
+// 占位页面声明
+class _SplashPage extends StatelessWidget {
+  const _SplashPage();
+  @override
+  Widget build(BuildContext context) => const Scaffold(body: Center(child: Text('自然写')));
+}
+class _LoginPage extends StatelessWidget {
+  const _LoginPage();
+  @override
+  Widget build(BuildContext context) => const Scaffold();
+}
+class _StudentHomePage extends StatelessWidget {
+  const _StudentHomePage();
+  @override
+  Widget build(BuildContext context) => const Scaffold();
+}
+class _TeacherHomePage extends StatelessWidget {
+  const _TeacherHomePage();
+  @override
+  Widget build(BuildContext context) => const Scaffold();
+}
+class _HomeworkPage extends StatelessWidget {
+  const _HomeworkPage();
+  @override
+  Widget build(BuildContext context) => const Scaffold();
+}
+class _PracticePage extends StatelessWidget {
+  const _PracticePage();
+  @override
+  Widget build(BuildContext context) => const Scaffold();
+}
+class _ErrorBookPage extends StatelessWidget {
+  const _ErrorBookPage();
+  @override
+  Widget build(BuildContext context) => const Scaffold();
+}
+class _SettingsPage extends StatelessWidget {
+  const _SettingsPage();
+  @override
+  Widget build(BuildContext context) => const Scaffold();
+}