_doRegister after saving

Register.dart

void _doRegister() {
  // TODO 3: Add validation and saving here
  // 1
  if (_key.currentState.validate()) {
    // Commit the field values to their variables
    // 2
    _key.currentState.save();
    // 3
    print("""
      The user has registered with an email address of '${_loginObject['email']}'
      and a password of '${_loginObject['password']}'
    """);
  }
}