import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

const List<String> menuItems = <String>['one', 'two', 'three', 'four'];

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Builder(
          builder: (BuildContext context) => MediaQuery.withClampedTextScaling(
            minScaleFactor: 3.0,
            maxScaleFactor: 3.0,
            child: Material(
              child: Center(
                child: SizedBox(
                  width: 200,
                  child: DropdownButtonFormField<String>(
                    value: 'two',
                    onChanged: (_) {},
                    items: menuItems.map<DropdownMenuItem<String>>((String item) {
                      return DropdownMenuItem<String>(
                        key: ValueKey<String>(item),
                        value: item,
                        child: Text(
                          item,
                          key: ValueKey<String>('${item}Text'),
                        ),
                      );
                    }).toList(),
                  ),
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }
}