TextField Sample(Keyboard do not show up)

main.dart

import 'package:flutter/material.dart';
import 'package:flutter_driver/driver_extension.dart';

void main() {
  // Enable integration testing with the Flutter Driver extension.
  // See https://flutter.dev/testing/ for more info.
  enableFlutterDriverExtension();
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Test App',
      home: Scaffold(
        body: Container(
          child: TextField(),
        ),
      )
    );
  }
}