import 'package:flutter/foundation.dart'; import 'package:shared_preferences/shared_preferences.dart'; class AuthProvider extends ChangeNotifier { final SharedPreferences _prefs; int _selectedIndex = 0; AuthProvider(this._prefs); int get selectedIndex => _selectedIndex; void setSelectedIndex(int index) { _selectedIndex = index; notifyListeners(); } Future logout() async { await _prefs.clear(); // Clear all stored preferences notifyListeners(); } }