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abdollah's questions

Martin Hope
abdollah
Asked: 2025-04-08 15:27:47 +0800 CST
  • 5

我正在尝试添加一个主题列表，用户可以选择一个，这是我的列表

import 'package:flutter/material.dart';

class ThemeModel {
  final Color surface;
  final Color primary;
  final Color secondary;
  final Color onSurface;

  ThemeModel({
    required this.surface,
    required this.primary,
    required this.secondary,
    required this.onSurface,
  });
}

final List<ThemeModel> themes = [
  ThemeModel(
    surface: Color(0xFFF0EAD6),
    primary: Color(0xFF6C9A8B),
    secondary: Color(0xFFA67C52),
    onSurface: Color(0xFF3B3A36),
  ),
  ThemeModel(
    surface: Color(0xFFF5F5F5),
    primary: Color(0xFF6D6875),
    secondary: Color(0xFFFFB4A2),
    onSurface: Color(0xFF2D2D2D),
  ),
  ThemeModel(
    surface: Color(0xFFF0F8FF),
    primary: Color(0xFFA2C7E5),
    secondary: Color(0xFF89B0AE),
    onSurface: Color(0xFF2F3E46),
  ),
];

我将显示一个列表，他们可以选择一个可以保存数字的列表，例如 chosenTheme，现在我有一个像这样的 ThemeData

ThemeData myTheme = ThemeData(
  fontFamily: 'estedad',
  useMaterial3: true,
  //brightness: chosenTheme <= 2 ? Brightness.light : Brightness.dark,
  colorScheme:
      chosenTheme <= 2
          ? ColorScheme.light(
            surface: cards[chosenTheme].themes.surface,
            primary: cards[chosenTheme].themes.primary,
            secondary: cards[chosenTheme].themes.secondary,
            onSurface: cards[chosenTheme].themes.onSurface,
          )
          : ColorScheme.dark(
            surface: cards[chosenTheme].themes.surface,
            primary: cards[chosenTheme].themes.primary,
            secondary: cards[chosenTheme].themes.secondary,
            onSurface: cards[chosenTheme].themes.onSurface,
          ),
);

如何在主题提供程序中将其设置为应用程序默认主题？

flutter