import 'package:shared_preferences/shared_preferences.dart'; final class Agreement{ bool agreed; Agreement({required this.agreed}); } void saveAgreement(bool agreed) async { SharedPreferences prefs = await SharedPreferences.getInstance(); prefs.setBool('agreed_to_terms_and_conditions', agreed); } Future getAgreement() async { SharedPreferences prefs = await SharedPreferences.getInstance(); return Agreement(agreed: prefs.getBool('agreed_to_terms_and_conditions') ?? false); }