Simple Theme Switcher #

A lightweight Flutter package for easily switching between light and dark themes with minimal setup. Built with flutter_bloc for efficient state management, this package helps developers implement theme toggling quickly.

Features #

• Simple and intuitive theme management.
• Toggle between light and dark themes.
• Minimal configuration required.

Installation #

Add simple_theme_switcher to your pubspec.yaml:

dependencies:
  simple_theme_switcher: ^0.0.1

Run the following command:

flutter pub get

Usage #

Step 1: Wrap Your App with ThemeSwitcher #

In your main.dart file, use ThemeSwitcher as the root widget of your app:

import 'package:flutter/material.dart';
import 'package:simple_theme_switcher/simple_theme_switcher.dart';

void main() {
  runApp(const ThemeSwitcher(child: MyApp()));
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return const MyExampleApp();
  }
}

Step 2: Toggle the Theme #

Use ThemeManager to toggle between light and dark themes:

import 'package:flutter/material.dart';
import 'package:simple_theme_switcher/simple_theme_switcher.dart';

class MyExampleApp extends StatelessWidget {
  const MyExampleApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Simple Theme Switcher Example'),
      ),
      body: Center(
        child: ElevatedButton(
          onPressed: () {
            final currentTheme = ThemeManager().currentThemeMode;
            ThemeManager().toggleTheme(
              currentTheme == AppThemeMode.dark ? AppThemeMode.light : AppThemeMode.dark,
            );
          },
          child: const Text('Toggle Theme'),
        ),
      ),
    );
  }
}

API #

ThemeSwitcher #

A widget that manages theme switching.

const ThemeSwitcher({required Widget child});

ThemeManager #

Singleton class for managing themes.

• currentThemeMode — Returns the current AppThemeMode (light or dark).
• toggleTheme(AppThemeMode themeMode) — Switches the theme to the specified mode.

Example #

A full working example is available in the example/ directory.

License #

This project is licensed under the MIT License.