如何修复这个 ParameterizedType 错误，该错误在调试模式下工作正常，但在发布模式下却不起作用？

Question

我的应用程序中有一个使用 Firebase Auth 进行身份验证的登录流程。我正在使用 Google OAuth 和基于电子邮件的身份验证。我面临的问题是登录在调试版本中工作得很好，但在发布版本中却不行。我收到此错误：

024-10-16 15:34:52.847 18432-18432 AuthViewModel           com.logomo.logomo              E  Error fetching API key: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType package com.logomo.logomo.data.login.  

private suspend fun loginAndGetApiKey(uid: String) {
    try {
        _isLoading.value = true
        logInResponse = logInRepository.signInUser(uid)
        // Suspends here until API call finishes
        logInResponse?.let {
            _apiKey.value = it.api_key
            Log.d(TAG, "getApiKey: ${it.status}")
            Log.d(TAG, "getApiKey: ${apiKey.value}")

            // Save the API key and retrieve it safely
            apiKey.value?.let { it1 -> saveApiKey(apiKey = it1) }
            val savedApiKey = getApiKey()
            Log.d(TAG, "getApiKeyFunc: $savedApiKey")
        } ?: run {
            Log.e(TAG, "Login response is null, failed to retrieve API key")
        }
    } catch (e: Exception) {
        signOut()

        Log.e(TAG, "Error fetching API key: ${e.message}")
    } finally {
        _isLoading.value = false
    }
}

我从 api 端点获取 api 密钥并将其存储在 EncryptedSharedPreferences 中，以便我可以在每次后续 api 调用时使用它来实现应用程序功能。

//This is the ApiService class
import com.logomo.logomo.retrofit.SignInUserData
import retrofit2.http.Field
import retrofit2.http.FormUrlEncoded
import retrofit2.http.POST

interface LogInApiService {
    @FormUrlEncoded
    @POST("users/user_login.php")
    suspend fun signInUser(
        @Field("uid") uid: String,
    ): SignInUserData
}

//This is the Repository class
import com.logomo.logomo.retrofit.SignInUserData
import javax.inject.Singleton

@Singleton
class NetworkLogInRepository(
    private val logInApiService: LogInApiService
) {
    suspend fun signInUser(uid: String): SignInUserData {
        return logInApiService.signInUser(uid)
    }
}

我尝试了几个 proguard 规则，以便可以防止 Retrofit2 类的混淆。但似乎没有任何作用。我**确信这是混淆器问题，因为我尝试将 isMinifyEnabled 切换为 false 并且工作正常。** 我如何更改规则或其他内容以便我可以让它工作？

Answer 1

你添加了Gson的pro-guard规则吗？

##---------------Begin: proguard configuration for Gson  ----------
# Gson uses generic type information stored in a class file when working with fields. Proguard
# removes such information by default, so configure it to keep all of it.
-keepattributes Signature

# For using GSON @Expose annotation
-keepattributes *Annotation*

# Gson specific classes
-dontwarn sun.misc.**
#-keep class com.google.gson.stream.** { *; }

# Application classes that will be serialized/deserialized over Gson
-keep class com.google.gson.examples.android.model.** { <fields>; }

# Prevent proguard from stripping interface information from TypeAdapter, TypeAdapterFactory,
# JsonSerializer, JsonDeserializer instances (so they can be used in @JsonAdapter)
-keep class * extends com.google.gson.TypeAdapter
-keep class * implements com.google.gson.TypeAdapterFactory
-keep class * implements com.google.gson.JsonSerializer
-keep class * implements com.google.gson.JsonDeserializer

# Prevent R8 from leaving Data object members always null
-keepclassmembers,allowobfuscation class * {
  @com.google.gson.annotations.SerializedName <fields>;
}

# Retain generic signatures of TypeToken and its subclasses with R8 version 3.0 and higher.
-keep,allowobfuscation,allowshrinking class com.google.gson.reflect.TypeToken
-keep,allowobfuscation,allowshrinking class * extends com.google.gson.reflect.TypeToken

# Keep all fields of classes that will be serialized/deserialized over Gson
-keepclassmembers class * {
  @com.google.gson.annotations.SerializedName <fields>;
}

##---------------End: proguard configuration for Gson  ----------

还有一种东西叫

#android.enableR8.fullMode=false

您也可以尝试关闭此功能，在较新的 AGP 和 gradle 版本中，此功能默认启用。你可以找到这个

gradle.properties.