Erro nos controller.
// ignore_for_file: prefer_const_constructors
import 'package:bytebankoffi/models/contact.dart';
import 'package:flutter/material.dart';
class ContactForm extends StatefulWidget {
const ContactForm({Key? key}) : super(key: key);
@override
_ContactFormState createState() => _ContactFormState();
}
class _ContactFormState extends State<ContactForm> {
final TextEditingController _nameController = TextEditingController();
final TextEditingController _accountNumberController =
TextEditingController();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Novo Contato'),
backgroundColor: Colors.green[900],
),
body: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
children: [
const TextField(
controller: _nameController,
decoration: InputDecoration(
labelText: 'Fullname',
),
style: TextStyle(
fontSize: 24.0,
),
keyboardType: TextInputType.number,
),
Padding(
padding: const EdgeInsets.only(top: 8.0),
child: const TextField(
controller: _accountNumberController,
decoration: InputDecoration(
labelText: 'Account Number',
),
style: TextStyle(
fontSize: 24.0,
),
keyboardType: TextInputType.number,
),
),
Padding(
padding: const EdgeInsets.only(top: 16.0),
child: SizedBox(
width: double.maxFinite,
child: ElevatedButton(
child: Text('Create'),
onPressed: () {
final String name = _nameController.text;
final int? accountNumber = int.tryParse(_accountNumberController.text);
final Contact newContact = Contact(0, name, accountNumber);
Navigator.pop(context, newContact);
},
),
),
)
],
),
),
);
}
}
 )