flutter_canteen/lib/model/themes.dart

import 'package:flutter/material.dart';

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,
    checkboxTheme: CheckboxThemeData(
      fillColor: MaterialStateProperty.resolveWith<Color?>(
          (Set<MaterialState> states) {
        if (states.contains(MaterialState.disabled)) {
          return null;
        }
        if (states.contains(MaterialState.selected)) {
          return const Color(0xFF038873);
        }
        return null;
      }),
    ),
    radioTheme: RadioThemeData(
      fillColor: MaterialStateProperty.resolveWith<Color?>(
          (Set<MaterialState> states) {
        if (states.contains(MaterialState.disabled)) {
          return null;
        }
        if (states.contains(MaterialState.selected)) {
          return const Color(0xFF038873);
        }
        return null;
      }),
    ),
    switchTheme: SwitchThemeData(
      thumbColor: MaterialStateProperty.resolveWith<Color?>(
          (Set<MaterialState> states) {
        if (states.contains(MaterialState.disabled)) {
          return null;
        }
        if (states.contains(MaterialState.selected)) {
          return const Color(0xFF038873);
        }
        return null;
      }),
      trackColor: MaterialStateProperty.resolveWith<Color?>(
          (Set<MaterialState> states) {
        if (states.contains(MaterialState.disabled)) {
          return null;
        }
        if (states.contains(MaterialState.selected)) {
          return const Color(0xFF038873);
        }
        return null;
      }),
    ),
    colorScheme: const ColorScheme(
      primary: Color(0xFF038873),
      secondary: Color(0xFF038873),
      surface: Colors.white,
      background: Colors.white,
      error: Color(0xffb00020),
      onPrimary: Colors.white,
      onSecondary: Colors.white,
      onSurface: Colors.black,
      onBackground: Colors.black,
      onError: Colors.white,
      brightness: Brightness.light,
    ).copyWith(error: const Color(0xffb00020)),
  );
  static final ThemeData lightTheme = ThemeData.light();
  static final ThemeData darkTheme =
      ThemeData.dark().copyWith(brightness: Brightness.dark);
}