类型推断失败预期的类型不匹配

编程问答 2022-06-05

问题描述

以下代码显示错误。类型推断失败。预期的类型不匹配必需：Response<BaseResponse<Any>>! 已发现：Response<BaseResponse<RetriveUserInfoResponse>!>! 

`when`( mockIOnboardingService.validateCustomerIdentity(customerType.toLowerCase(),ValidateCustomerRequest(customerId,documentType,"243546",tyc)))
.thenReturn(Response.success(BaseResponse(payload = RetriveUserInfoResponse("+5689765432")))) //--> Here the error

这是validateCustomerIdentity方法

@POST(ApiConstants.bffOnboardingPath + ApiConstants.pathRetriveUserInfo)
    suspend fun validateCustomerIdentity(
        @Header(ApiConstants.headerXflowService) customerType : String,@Body body: ValidateCustomerRequest
    ): Response<BaseResponse<Any>>

如您所见，它返回BaseResponse<Any>。为什么Android Studio向我显示BaseResponse<RetriveUserInfoResponse>!作为错误

这是RetrieveUserInfoResponse数据类

data class RetriveUserInfoResponse(
    @Serializedname("phone")
    val phone: String
)

解决方法

此问题是Response.success(BaseResponse(payload = RetriveUserInfoResponse("+5689765432")))生成的Response<BaseResponse<RetriveUserInfoResponse>>与Response<BaseResponse<Any>>的类型（或子类型）不同。

您可以通过将RetriveUserInfoResponse强制转换为Any来解决此问题：

Response.success(BaseResponse(payload = RetriveUserInfoResponse("+5689765432") as Any))

或者通过将validateCustomerIdentity()的返回类型更改为Response<out BaseResponse<out Any>>来起作用，因为Response<BaseResponse<RetriveUserInfoResponse>>是Response<out BaseResponse<out Any>>的子类：

@POST(ApiConstants.bffOnboardingPath + ApiConstants.pathRetriveUserInfo)
suspend fun validateCustomerIdentity(
    @Header(ApiConstants.headerXflowService) customerType : String,@Body body: ValidateCustomerRequest
): Response<out BaseResponse<out Any>>
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