Moshi Json注释不适用于pro卫士。

Question

我按照https://github.com/square/moshi添加了对moshi和pro卫士规则的gradle依赖，然后编写代码进行验证。

data class Car(
    @Json(name = "low_speed")  val lowSpeed: Int,
    @Json(name = "high_speed") val highSpeed: Int
)

val moshi = Moshi.Builder()
            .add(KotlinJsonAdapterFactory())
            .build()
val jsonAdapter = moshi.adapter(Car::class.java)

val json = "{\"low_speed\": 10, \"high_speed\": 20}"
val car = jsonAdapter.fromJson(json)

if (car != null) {
    Toast.makeText(this, "${car.lowSpeed}+${car.highSpeed}", Toast.LENGTH_LONG).show()
}

当我在调试模式下运行它时，它显示了"10+20"，这是预期的，但是当我在发布模式下运行时(已经启用了0+0)，我看到了"0+0“。

我的卫兵-规则.专业档案：

# Retain generic type information for use by reflection by converters     and adapters.
-keepattributes Signature
# Retain declared checked exceptions for use by a Proxy instance.
-keepattributes Exceptions

# Common Stuff to Keep
-keepattributes *Annotation*
-keepattributes JavascriptInterface

# OkHttp
-dontwarn javax.annotation.**
-keepnames class okhttp3.internal.publicsuffix.PublicSuffixDatabase
-dontwarn org.codehaus.mojo.animal_sniffer.*
-dontwarn okhttp3.internal.platform.ConscryptPlatform

# okIo
-dontwarn okio.**

#moshi
# JSR 305 annotations are for embedding nullability information.
-keepclasseswithmembers class * {
    @com.squareup.moshi.* <methods>;
}

-keep @com.squareup.moshi.JsonQualifier interface *

# Enum field names are used by the integrated EnumJsonAdapter.
# values() is synthesized by the Kotlin compiler and is used by EnumJsonAdapter indirectly
# Annotate enums with @JsonClass(generateAdapter = false) to use them with Moshi.
-keepclassmembers @com.squareup.moshi.JsonClass class * extends java.lang.Enum {
    <fields>;
    **[] values();
}

#moshi-kotlin
-keep class kotlin.reflect.jvm.internal.impl.builtins.BuiltInsLoaderImpl

-keepclassmembers class kotlin.Metadata {
    public <methods>;
}

我的build.gradle依赖性：

// moshi
implementation("com.squareup.moshi:moshi:1.9.2")
implementation("com.squareup.moshi:moshi-kotlin:1.9.2")

// okhttp
implementation "com.squareup.okhttp3:okhttp:3.10.0"

我想我错过了莫希和保安的一些东西，但我真的不知道这是什么

Answer 1

使用@Keep注释来防止目标类的小型化。

我的案子跟OP描述的有点不同。我的应用程序在尝试用moshi jsonAdapter解析JSON响应时崩溃了。

val jsonAdapter = Moshi.Builder().add(KotlinJsonAdapterFactory()).build().let { moshi ->
    moshi.adapter(WeatherResponse::class.java)
}

..。

val weatherResponse = response.body?.source()?.let { 
    jsonAdapter.nullSafe().fromJson(it) 
}

我通过将@Keep注释应用于WeatherResponse类定义和由WeatherResponse实例化的所有类来解决这个问题。

@Keep
data class Weather(
...

这似乎解决了我的问题。

Answer 2

试着添加：

@JsonClass(generateAdapter = false)

和将这些行添加到proguard：

-keepclassmembernames @com.squareup.moshi.JsonClass class * extends java.lang.Enum {
    <fields>;
}

信贷银行( Credit -> https://github.com/square/moshi/issues/689 )