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gt_theme.dart

gt_theme library

GT Theme - A production-ready Flutter theme management package.

This package provides a complete theme management solution with:

Material 3 and Cupertino theme support
System theme detection and real-time sync
Light/Dark/System mode switching
Theme persistence via SharedPreferences
Zero-dependency state management (works with any or no state management)
Minimal widget rebuilds using ValueNotifier

Quick Start

import 'package:gt_theme/gt_theme.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  ThemeService.instance.startListening();
  runApp(MyApp());
}

Widgets Included

ThemeService - Core singleton service for theme management
ThemeConsumer - Widget for efficient theme consumption
ThemeModeSelector - UI widget for theme mode selection
BrightnessIndicator - Widget showing current system brightness
ThemeInfoCard - Widget displaying current theme information

Classes

BrightnessIndicator: BrightnessIndicator widget that displays the current system brightness.
ThemeConsumer: ThemeConsumer widget for efficiently consuming theme data with minimal rebuilds.
ThemeInfoCard: ThemeInfoCard widget that displays current theme information.
ThemeModeSelector: ThemeModeSelector widget for switching between light, dark, and system themes.
ThemeService: Ultra-optimized, zero-dependency, production-ready global theme service.