flutter_canteen/lib/model/themes.dart

import 'package:flutter/material.dart';

///优先使用Theme中的颜色，如果Theme中颜色不满足需求再使用colorScheme中的颜色
///primaryColor是主颜色，确定色系
///primaryColorLight为主颜色的浅色变种
///primaryColorDark为主颜色的深色变种
///errorColor为错误色和警告色
///
///colorScheme:
///primary为主颜色(和primaryColor保持一致或相近颜色)
///secondary为次级颜色(和primaryColor保持一致或同一色系)
///error为错误色(和errorColor保持一致)
///onPrimary为以primaryColor为背景的字体颜色(多为按钮的默认颜色)
///onSurface为Text组件的默认颜色
///brightness为模式
/// (会影响状态栏以及webview的背景)[ActivityViewPage],[PhonePage],[NewsPage]
///
/// 以上为必须需要的颜色,其余未列举出的颜色可自由发挥
///
class Themes {
  static Map<String, ThemeData> get values =>
      {'默认主题': defaultTheme, '蓝色主题': lightTheme, '夜间主题': darkTheme};

  static final ThemeData defaultTheme = ThemeData(
    primaryColor: const Color(0xFF038873),
    primaryColorLight: Colors.green,
    primaryColorDark: const Color(0xFF026F5C),
    indicatorColor: Colors.green,
    errorColor: const Color(0xffb00020),
    toggleableActiveColor: const Color(0xFF038873),
    colorScheme: ColorScheme(
      primary: const Color(0xFF038873),
      secondary: const Color(0xFF038873),
      surface: Colors.white,
      background: Colors.white,
      error: const Color(0xffb00020),
      onPrimary: Colors.white,
      onSecondary: Colors.white,
      onSurface: Colors.black,
      onBackground: Colors.black,
      onError: Colors.white,
      brightness: Brightness.light,
      primaryVariant: const Color(0xFF038873),
      secondaryVariant: const Color(0xFF038873),
    ),
  );
  static final ThemeData lightTheme = ThemeData.light();
  static final ThemeData darkTheme =
      ThemeData.dark().copyWith(brightness: Brightness.dark);
}