2faf37f145
- Updated Group, Trip, User, and other model classes to include comprehensive documentation for better understanding and maintainability. - Improved error handling and logging in services, including AuthService, ErrorService, and StorageService. - Added validation and business logic explanations in ExpenseService and TripService. - Refactored method comments to follow a consistent format across the codebase. - Translated error messages and comments from French to English for consistency.
62 lines
2.1 KiB
Dart
62 lines
2.1 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'theme_event.dart';
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import 'theme_state.dart';
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/// BLoC for managing application theme preferences.
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///
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/// This BLoC handles theme-related events and manages the application's
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/// theme mode (light, dark, or system). It persists theme preferences
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/// using SharedPreferences for consistency across app sessions.
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class ThemeBloc extends Bloc<ThemeEvent, ThemeState> {
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/// Creates a new [ThemeBloc] with default theme state.
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///
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/// Registers event handlers for theme changes and loading saved preferences.
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ThemeBloc() : super(const ThemeState()) {
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on<ThemeChanged>(_onThemeChanged);
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on<ThemeLoadRequested>(_onThemeLoadRequested);
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}
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/// Handles [ThemeChanged] events.
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///
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/// Updates the theme mode and persists the preference to local storage.
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/// This ensures the theme choice is remembered across app restarts.
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Future<void> _onThemeChanged(
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ThemeChanged event,
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Emitter<ThemeState> emit,
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) async {
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emit(state.copyWith(themeMode: event.themeMode));
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// Save the theme preference to persistent storage
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final prefs = await SharedPreferences.getInstance();
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await prefs.setString('themeMode', event.themeMode.toString());
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}
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/// Handles [ThemeLoadRequested] events.
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///
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/// Loads the saved theme preference from SharedPreferences and applies it.
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/// If no preference is saved, the theme remains as system default.
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Future<void> _onThemeLoadRequested(
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ThemeLoadRequested event,
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Emitter<ThemeState> emit,
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) async {
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final prefs = await SharedPreferences.getInstance();
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final themeModeString = prefs.getString('themeMode');
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if (themeModeString != null) {
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ThemeMode themeMode;
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switch (themeModeString) {
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case 'ThemeMode.light':
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themeMode = ThemeMode.light;
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break;
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case 'ThemeMode.dark':
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themeMode = ThemeMode.dark;
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break;
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default:
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themeMode = ThemeMode.system;
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}
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emit(state.copyWith(themeMode: themeMode));
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}
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}
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} |