import 'package:flutter/material.dart';

void main() => runApp(const MyApp());

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

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: Scaffold(
        body: Center(
          child: InputDecorator(
            decoration: InputDecoration(
              filled: true
            ),
            child: SizedBox(
              height: 32.0,
              child: Row(
                children: [
                  Text(
                    'Text',
                    style: TextStyle(fontSize: 60.0),
                  ),
                  // Uncomment this line to get the correct height
                  // for the InputDecorator.
                  Icon(Icons.arrow_drop_down),
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }
}