import 'package:flutter/material.dart';

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

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

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(title: 'DropdownMenu.decorationBuilder width', home: HomePage());
  }
}

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

  @override
  Widget build(BuildContext context) {
    return Material(
      child: Center(
        child: DropdownMenu<String>(
          dropdownMenuEntries: const [
            DropdownMenuEntry(value: "value1", label: "Option 1"),
            DropdownMenuEntry(value: "value2", label: "Option 2"),
            DropdownMenuEntry(value: "value3", label: "Option 3"),
          ],
          textInputAction: TextInputAction.next,
          decorationBuilder: (context, controller) {
            return const InputDecoration(labelText: 'DropdownMenu', border: OutlineInputBorder());
          },
        ),
      ),
    );
  }
}