import 'package:shared_preferences/shared_preferences.dart'; extension SharedPreferencesExtenstion on SharedPreferences { Future updateInt(String key, int value) { if (this.getInt(key) == value) return Future.value(false); return this.setInt(key, value); } Future updateDouble(String key, double value) { if (this.getDouble(key) == value) return Future.value(false); return this.setDouble(key, value); } Future updateString(String key, String value) { if (this.getString(key) == value) return Future.value(false); return this.setString(key, value); } }