List não atualiza "automaticamente"

Eu preencho o form e clico em criar mas preciso voltar pro dashboard e ir pros contatos para o novo contato aparecer. Vi um post falando que era só transformar o Stateless do contacts_list para Stateful, mas não funcionou cmg. Eu transformei em Stateful, executei o codigo dnv e nada diferente aconteceu

import 'package:bytebank2/database/dao/contact_dao.dart';
import 'package:bytebank2/models/contact.dart';
import 'package:bytebank2/screens/contact_form.dart';
import 'package:flutter/material.dart';

class ContactsList extends StatelessWidget {
  final ContactDao _dao = ContactDao();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Contacts"),
      ),
      body: FutureBuilder<List<Contact>>(
        initialData: List(),
        future: _dao.findAll(),
        builder: (context, snapshot) {
          switch (snapshot.connectionState) {
            case ConnectionState.none:
              break;
            case ConnectionState.waiting:
              return Center(
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  crossAxisAlignment: CrossAxisAlignment.center,
                  children: <Widget>[
                    CircularProgressIndicator(),
                    Text("Loading")
                  ],
                ),
              );
              break;
            case ConnectionState.active:
              break;
            case ConnectionState.done:
              final List<Contact> contacts = snapshot.data;
              return ListView.builder(
                itemBuilder: (context, index) {
                  final Contact contact = contacts[index];
                  return _ContactItem(contact);
                },
                itemCount: contacts.length,
              );
              break;
          }
          return Text("Unknown error");
        },
      ),
      floatingActionButton: FloatingActionButton(
        child: Icon(Icons.add),
        onPressed: () {
          Navigator.of(context).push(
            MaterialPageRoute(
              builder: (context) => ContactForm(),
            ),
          );
        },
      ),
    );
  }
}

class _ContactItem extends StatelessWidget {
  final Contact contact;

  _ContactItem(this.contact);

  @override
  Widget build(BuildContext context) {
    return Card(
      child: ListTile(
        title: Text(contact.name, style: TextStyle(fontSize: 24)),
        subtitle: Text(contact.accountNumber.toString(),
            style: TextStyle(fontSize: 16)),
      ),
    );
  }
}