Как установить состояние JSON в раскрывающемся поле?

#json #flutter #dart Вопрос: // ignore_for_file: prefer_const_constructors, avoid_unnecessary_containers, prefer_const_literals_to_create_immutables, import_of_legacy_library_into_null_safe, non_constant_identifier_names, unused_field, avoid_print import 'dart:convert'; import 'package:dropdownfield/dropdownfield.dart'; import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; class FoodWidget extends StatefulWidget { const FoodWidget({Key? key}) :…