Flutter multiple TextFormFields in Material App -重置文本

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
  final TextEditingController _textController1 = TextEditingController();
  final TextEditingController _textController2 = TextEditingController();

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Multiple TextFields'),
        ),
        body: Form(
          key: _formKey,
          child: Column(
            children: [
              TextFormField(
                controller: _textController1,
                decoration: InputDecoration(
                  labelText: 'Field 1',
                ),
                validator: (value) {
                  if (value.isEmpty) {
                    return 'Please enter some text';
                  }
                  return null;
                },
              ),
              TextFormField(
                controller: _textController2,
                decoration: InputDecoration(
                  labelText: 'Field 2',
                ),
                validator: (value) {
                  if (value.isEmpty) {
                    return 'Please enter some text';
                  }
                  return null;
                },
              ),
              RaisedButton(
                child: Text('Reset'),
                onPressed: () {
                  _formKey.currentState.reset();
                  _textController1.clear();
                  _textController2.clear();
                },
              ),
            ],
          ),
        ),
      ),
    );
  }
}