shenleiandClaude Opus 4.8
febfd30f49
课程内容 - 重写全部 21 个 A1 单元的听读材料，把本单元理解词织进听/读文本， 单元内理解词复现率从约 20% 提升到约 77%（各单元 56–96%）。 - 修正 U01 房间号与机场大巴同为 thirty 的撞车（改为 17/30/40）。 - 校验器容差按级别读取（A1 为 8%），materials 覆盖率、字数、 选项子串等校验全部通过；course_content_test 通过。 黑夜模式 - app_theme 拆分明/暗两套调色板，AppColors 随亮度切换； main 用 theme/darkTheme/themeMode + builder 镜像已解析亮度； 主题偏好持久化到快照；进度页新增“外观主题”切换。 文档 - COURSE-PACK-JSON.md 更新 A1 词池覆盖（840/933）与材料复现约定。 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
137 lines
3.6 KiB
Dart
137 lines
3.6 KiB
Dart
import 'package:flutter/material.dart';
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/// User's theme preference, persisted in the learning snapshot.
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enum AppThemeMode { system, light, dark }
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/// One brightness worth of brand colours. Two const instances below hold the
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/// light and dark values; [AppColors] mirrors the active one so the many
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/// widgets that read `AppColors.x` directly recolour when the theme changes.
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class _Palette {
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const _Palette({
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required this.paper,
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required this.surface,
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required this.surfaceMuted,
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required this.ink,
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required this.muted,
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required this.line,
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required this.green,
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required this.softGreen,
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required this.warm,
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required this.warmInk,
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});
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final Color paper;
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final Color surface;
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final Color surfaceMuted;
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final Color ink;
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final Color muted;
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final Color line;
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final Color green;
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final Color softGreen;
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final Color warm;
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final Color warmInk;
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}
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const _light = _Palette(
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paper: Color(0xFFF5F7F3),
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surface: Colors.white,
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surfaceMuted: Color(0xFFF1F5F0),
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ink: Color(0xFF19211B),
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muted: Color(0xFF647268),
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line: Color(0xFFD8E1D9),
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green: Color(0xFF176B46),
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softGreen: Color(0xFFE2F3E8),
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warm: Color(0xFFFFF0E3),
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warmInk: Color(0xFF9E4C18),
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);
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const _dark = _Palette(
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paper: Color(0xFF11150F),
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surface: Color(0xFF1B211A),
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surfaceMuted: Color(0xFF232B22),
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ink: Color(0xFFE8EEE6),
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muted: Color(0xFF9CA99D),
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line: Color(0xFF33402F),
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green: Color(0xFF2FA36B),
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softGreen: Color(0xFF17311F),
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warm: Color(0xFF352618),
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warmInk: Color(0xFFEBAA78),
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);
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/// Brand colours for the active brightness. Values are reassigned by
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/// [AppColors.applyBrightness]; call it before building the widget tree.
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abstract final class AppColors {
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static Color paper = _light.paper;
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static Color surface = _light.surface;
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static Color surfaceMuted = _light.surfaceMuted;
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static Color ink = _light.ink;
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static Color muted = _light.muted;
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static Color line = _light.line;
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static Color green = _light.green;
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static Color softGreen = _light.softGreen;
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static Color warm = _light.warm;
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static Color warmInk = _light.warmInk;
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static Brightness brightness = Brightness.light;
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static void applyBrightness(Brightness value) {
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final p = value == Brightness.dark ? _dark : _light;
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brightness = value;
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paper = p.paper;
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surface = p.surface;
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surfaceMuted = p.surfaceMuted;
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ink = p.ink;
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muted = p.muted;
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line = p.line;
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green = p.green;
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softGreen = p.softGreen;
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warm = p.warm;
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warmInk = p.warmInk;
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}
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}
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ThemeData buildAppTheme(Brightness brightness) {
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final p = brightness == Brightness.dark ? _dark : _light;
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final scheme =
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ColorScheme.fromSeed(
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seedColor: p.green,
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brightness: brightness,
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).copyWith(
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surface: p.surface,
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onSurface: p.ink,
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primary: p.green,
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onPrimary: Colors.white,
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outline: p.line,
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);
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return ThemeData(
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useMaterial3: true,
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brightness: brightness,
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colorScheme: scheme,
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scaffoldBackgroundColor: p.paper,
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fontFamily: 'PingFang SC',
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appBarTheme: AppBarTheme(
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backgroundColor: p.surface,
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foregroundColor: p.ink,
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elevation: 0,
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centerTitle: false,
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),
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textTheme: TextTheme(
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headlineMedium: TextStyle(
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color: p.ink,
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fontSize: 26,
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height: 1.25,
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fontWeight: FontWeight.w600,
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letterSpacing: -0.6,
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),
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titleLarge: TextStyle(
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color: p.ink,
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fontSize: 18,
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fontWeight: FontWeight.w600,
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),
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bodyLarge: TextStyle(color: p.ink, fontSize: 16, height: 1.5),
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bodyMedium: TextStyle(color: p.muted, fontSize: 14, height: 1.5),
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),
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);
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}
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