flutter - 文本验证器无法使用bloc和卡住

Question

电子邮件地址的验证无法使用DDD模式进行操作，我使用的是dartz，bloc和frozen这样做。
我试图发现错误，但我不能。
电子邮件地址是:

class _EmailAdressInput extends _ListOfInputs {
  const _EmailAdressInput();
  @override
  Widget build(BuildContext context) {
    return BlocBuilder<AuthBloc, AuthBlocState>(builder: (context, state) {
      return TextFormField(
        focusNode: emailAddressNode,
        autocorrect: false,
        textInputAction: TextInputAction.next,
        decoration: InputDecoration(
          labelText: 'Email Address',
        ),
        validator: (value) {
          return context.read<AuthBloc>().state.email.value!.fold(
              (l) => l.maybeMap(
                  orElse: () {}, invalidEmail: (_) => "Invalid Email"),
              (r) => null);
        },
        onChanged: (value) {
          return context.read<AuthBloc>().add(
              AuthBlocEvent.emailAddressEvent(emailAdressEventValue: value));
        },
        onFieldSubmitted: (value) {
          emailAddressNode!.unfocus();
          FocusScope.of(context).requestFocus(passwordNode);
        },
      );
    });
  }
}

使用卡住的事件:

@freezed
abstract class AuthBlocEvent with _$AuthBlocEvent { 
  const factory AuthBlocEvent.emailAddressEvent(
      {required String emailAdressEventValue}) = _EmailAddressEvent;
}

使用卡住库的状态是:

@freezed
abstract class AuthBlocState with _$AuthBlocState {
  const factory AuthBlocState({
    required Password password,
    required bool isSubmitted,
    required bool showErrorMessages,

    required Option<Either<AuthFailures, Unit>> authFailureOrSuccessOption,
  }) = _AuthBlocState;

  factory AuthBlocState.initial() => AuthBlocState(
        email: EmailAddress(''),
        isSubmitted: false,
        showErrorMessages: false,
        authFailureOrSuccessOption: none(),
      );
}

集团是:

  @override
  Stream<AuthBlocState> mapEventToState(
    AuthBlocEvent event,
  ) async* {
    yield* event.map(
    emailAddressEvent: (e) async* {
    yield state.copyWith(
      email: EmailAddress(e.emailAdressEventValue),
      showErrorMessages: true,
      authFailureOrSuccessOption: none(),
    );
  },
        okPressedEvent: (e) async* {
        // to get the value of
        // either we should use option of
        // to check either values
        // we have to knew that
        // both are right
        if (state.email.isValueValid()
            ) {
          yield state.copyWith(
            isSubmitted: true,
            authFailureOrSuccessOption: none(),
          );
        }
      },
    );}

验证者为:

Either<ValueFailures, String> emailAddressValidator(String input) {
  if (RegExp(r"""^[a-zA-Z0-9.a-zA-Z0-9.!#$%&'*+-/=?^_`{|}~]+@[a-zA-Z0-9]+\.[a-zA-Z]+""")
      .hasMatch(input)) return right(input);
  return left(const ValueFailures.invalidEmail(
      msg: "Invalid Email"));
}

相等的is值(value)对象是:

abstract class ValueObject {
  const ValueObject();
  Either<ValueFailures, String>? get value;
  Either<ValueFailures, String>?  get extraValue;
 
  bool isValueValid() => value!.isRight();
  bool isExtraValueValid() => extraValue!.isRight();
  
  @override
  String toString() => 'ValueObject(value: $value, extraValue: $extraValue)';

  @override
  bool operator ==(Object other) {
    if (identical(this, other)) return true;
  
    return other is ValueObject &&
      other.value == value &&
      other.extraValue == extraValue;
  }

  @override
  int get hashCode => value.hashCode ^ extraValue.hashCode;
  
}

Answer 1

您没有在您的集团中映射emailAdressEvent。同样，当您处于context.read<AuthBloc>().state时，您不需要使用blocBuilder，您可以只使用state。