Dartz接口无效覆盖

Question

我目前正在用dartz包在flutter中设置一个电话号码验证。我的firebase_auth_facade.dart继承了我的i_auth_facade.dart，但当我尝试设置电话号码验证功能时，我得到了错误：

"FirebaseAuthFacade.verifyAndLinkPhoneNumber‘('Future> Function( String，String)')不是'IAuthFacade.verifyAndLinkPhoneNumber’('Future> Function({String smsCode，String verificationId})‘)的有效重写。“

下面是我的代码：

i_auth_facade.dart：

Future<Either<AuthFailure, Unit>> verifyAndLinkPhoneNumber({
  @required String verificationId,
  @required String smsCode,
});

firebase_auth_facade.dart：

@override
Future<Either<AuthFailure, Unit>> verifyAndLinkPhoneNumber(
    String verificationId, String smsCode) async {
  try {
    PhoneAuthCredential phoneAuthCredential = PhoneAuthProvider.credential(
        verificationId: verificationId, smsCode: smsCode);
    if (phoneAuthCredential == null) {
      return left((const AuthFailure.cancelledByUser()));
    }
    await _firebaseAuth.currentUser.linkWithCredential(phoneAuthCredential);
    return right(unit);
    } on FirebaseAuthException catch (_) {
    return left(const AuthFailure.serverError());
  }
}

有人知道为什么后者不是有效的覆盖吗？谢谢!

Answer 1

明白了。我忘了用大括号把构造函数括起来。firebase_auth_facade.dart应该如下所示：

@override
Future<Either<AuthFailure, Unit>> verifyAndLinkPhoneNumber({
@required String smsCode,
@required String verificationId,
}) async {
try {
  final verificationIdStr = verificationId;
  final smsCodeStr = smsCode.getOrCrash();
  PhoneAuthCredential phoneAuthCredential = PhoneAuthProvider.credential(
      verificationId: verificationIdStr, smsCode: smsCodeStr);
  if (phoneAuthCredential == null) {
    return left((const AuthFailure.cancelledByUser()));
  }
  await _firebaseAuth.currentUser.linkWithCredential(phoneAuthCredential);
  return right(unit);
} on FirebaseAuthException catch (_) {
  return left(const AuthFailure.serverError());
}