自习室优化ok

lib/global/config.dart

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+class Config {
+  ///获取环境
+  static String getEnv() {
+    const env = String.fromEnvironment('ENV', defaultValue: 'dev');
+    return env;
+  }
+
+  ///获取接口地址
+  static String baseUrl() {
+    if (getEnv() == 'dev') {
+      return 'https://xueguang.test.tuzuu.com/api';
+    } else {
+      return 'https://xueguang.test.tuzuu.com/api';
+    }
+  }
+
+  /// 获取websocket地址
+  static String wsUrl() {
+    return "wss://xueguang.test.tuzuu.com/ws";
+  }
+
+  ///网页域名地址
+  static String get webUrl => "http://xueguang.test.tuzuu.com";
+
+  ///声网APPid
+  static String get swAppId => "011c2fd2e1854511a80c1aebded4eee7";
+}

lib/global/event_bus.dart

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+import 'dart:async';
+
+/// 全局事件总线
+class EventBus {
+  EventBus._();
+
+  static final _instance = EventBus._();
+
+  factory EventBus() => _instance;
+
+
+  // StreamController，广播模式可以让多个地方监听
+  final StreamController<GlobalEvent> _controller = StreamController.broadcast();
+
+  /// 发送事件
+  void fire(GlobalEvent event) {
+    _controller.add(event);
+  }
+
+  /// 监听事件
+  Stream<GlobalEvent> get stream => _controller.stream;
+
+  /// 关闭流（一般应用生命周期结束时调用）
+  void dispose() {
+    _controller.close();
+  }
+}
+
+/// 事件类型枚举
+enum GlobalEvent {
+  unauthorized, // 401 需要重新登录
+  // 以后可以扩展其他事件
+}

lib/global/theme/base/app_colors_base.dart

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+import 'dart:ui';
+
+abstract class AppColorsBase {
+  /// 品牌主色
+  Color get primary;
+
+  // 灰度
+  Color get textPrimary;
+
+  Color get textSecondary;
+
+  Color get textTertiary;
+
+  // 状态颜色
+  Color get success;
+
+  Color get warning;
+
+  Color get info;
+
+  Color get danger;
+
+
+  // 容器色
+  Color get surfaceContainerLowest;
+
+  Color get surfaceContainerLow;
+
+  Color get surfaceContainer;
+
+  Color get surfaceContainerHigh; //白色卡片 / item
+
+  //阴影颜色
+  Color get shadow;
+}

lib/global/theme/base/app_text_style.dart

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+import 'package:flutter/material.dart';
+import 'app_colors_base.dart'; // 假设你之前定义了 AppColorsBase
+
+TextTheme buildTextTheme(AppColorsBase colors) {
+  return TextTheme(
+    // 标题层级
+    titleLarge: TextStyle(
+      fontSize: 22, // 比正文大6
+      fontWeight: FontWeight.w700,
+      color: colors.textPrimary,
+    ),
+    titleMedium: TextStyle(
+      fontSize: 20, // 比正文大4
+      fontWeight: FontWeight.w700,
+      color: colors.textPrimary,
+    ),
+    titleSmall: TextStyle(
+      fontSize: 18, // 比正文大2
+      fontWeight: FontWeight.w700,
+      color: colors.textPrimary,
+    ),
+
+    // 正文字体
+    bodyLarge: TextStyle(
+      fontSize: 18, // 稍大正文
+      color: colors.textPrimary,
+    ),
+    bodyMedium: TextStyle(
+      fontSize: 16, // 正文标准
+      color: colors.textPrimary,
+    ),
+    bodySmall: TextStyle(
+      fontSize: 14, // 辅助正文
+      color: colors.textPrimary,
+    ),
+
+    // 标签/提示文字
+    labelLarge: TextStyle(
+      fontSize: 14, // 比正文小一点
+      fontWeight: FontWeight.w500,
+      color: colors.textSecondary,
+    ),
+    labelMedium: TextStyle(
+      fontSize: 12,
+      fontWeight: FontWeight.w500,
+      color: colors.textSecondary,
+    ),
+    labelSmall: TextStyle(
+      fontSize: 11,
+      fontWeight: FontWeight.w400,
+      color: colors.textSecondary,
+    ),
+  );
+}

lib/global/theme/base/app_theme_ext.dart

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+import 'package:flutter/material.dart';
+
+import 'app_colors_base.dart';
+
+@immutable
+class AppThemeExtension extends ThemeExtension<AppThemeExtension> {
+  final AppColorsBase baseTheme;
+
+  const AppThemeExtension({required this.baseTheme});
+
+  @override
+  ThemeExtension<AppThemeExtension> copyWith({
+    AppColorsBase? baseTheme,
+  }) {
+    return AppThemeExtension(
+      baseTheme: baseTheme ?? this.baseTheme,
+    );
+  }
+
+  @override
+  AppThemeExtension lerp(AppThemeExtension? other, double t) {
+    if (other is! AppThemeExtension) return this;
+    return t < 0.5 ? this : other; // 或者 this/base 混合逻辑
+  }
+}
+
+extension AppThemeExt on BuildContext {
+  AppThemeExtension get themeEx => Theme.of(this).extension<AppThemeExtension>()!;
+
+  ///主题
+  Color get success => themeEx.baseTheme.success;
+
+  Color get warning => themeEx.baseTheme.warning;
+
+  Color get danger => themeEx.baseTheme.danger;
+
+  Color get info => themeEx.baseTheme.info;
+
+  //字体灰度
+  Color get textSecondary => themeEx.baseTheme.textSecondary;
+
+  Color get textTertiary => themeEx.baseTheme.textTertiary;
+
+  double get pagePadding => 12;
+}

lib/global/theme/theme.dart

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+import 'package:flutter/material.dart';
+
+import 'base/app_colors_base.dart';
+import 'base/app_text_style.dart';
+import 'base/app_theme_ext.dart';
+
+export 'themes/light_theme.dart';
+export 'base/app_theme_ext.dart';
+
+class AppTheme {
+  static ThemeData createTheme(AppColorsBase themeBase) {
+    final textTheme = buildTextTheme(themeBase);
+    return ThemeData(
+      useMaterial3: true,
+      fontFamily: "资源圆体",
+      primaryColor: themeBase.primary,
+      scaffoldBackgroundColor: themeBase.surfaceContainerHigh,
+      colorScheme: ColorScheme.fromSeed(
+        seedColor: themeBase.primary,
+        brightness: Brightness.light,
+        onSurfaceVariant: themeBase.textSecondary,
+        //背景色
+        surfaceContainerHigh: themeBase.surfaceContainerHigh,
+        surfaceContainer: themeBase.surfaceContainer,
+        surfaceContainerLow: themeBase.surfaceContainerLow,
+        surfaceContainerLowest: themeBase.surfaceContainerLowest,
+        //阴影
+        shadow: themeBase.shadow,
+      ),
+      textTheme: textTheme,
+      extensions: [AppThemeExtension(baseTheme: themeBase)],
+      // pageTransitionsTheme: const PageTransitionsTheme(),
+      appBarTheme: AppBarTheme(
+        backgroundColor: Colors.white,
+        titleTextStyle: textTheme.titleMedium,
+        scrolledUnderElevation: 0,
+
+      ),
+    );
+  }
+}

lib/global/theme/themes/light_theme.dart

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+import 'dart:ui';
+
+import 'package:flutter/material.dart';
+
+import '../base/app_colors_base.dart';
+
+class LightTheme extends AppColorsBase {
+  @override
+  Color get primary => const Color(0xff615fff);
+
+  @override
+  Color get textPrimary => const Color(0xff222932);
+
+  @override
+  Color get textSecondary => const Color(0xffA6B0BE);
+
+  @override
+  Color get textTertiary => const Color(0xffC7CDD5);
+
+  @override
+  Color get success => const Color(0xff00D4B5);
+
+  @override
+  Color get warning => const Color(0xffFF9200);
+
+  @override
+  Color get info => const Color(0xFFEEEEEE);
+
+  @override
+  Color get danger => const Color(0xffFF4900);
+
+  @override
+  Color get surfaceContainerLowest => Color(0xffE0E0E0);
+
+  @override
+  Color get surfaceContainerLow => Color(0xffF0F0F0);
+
+  @override
+  Color get surfaceContainer =>  Color(0xfff7f9fa);
+
+  @override
+  Color get surfaceContainerHigh => Color(0xffFFFFFF);
+
+  @override
+  Color get shadow => const Color.fromRGBO(0, 0, 0, 0.1);
+}