Android Kotlin改造将JSON对象转换为Kotlin对象

我有一个API的数据，看起来像这样

{"post code": "45219", "country": "United States", "country abbreviation": "US", "places": [{"place name": "Cincinnati", "longitude": "-84.5131", "state": "Ohio", "state abbreviation": "OH", "latitude": "39.127"}]}

使用改型，我尝试使用下面的代码将其转换为一个对象。为了进行测试，目前正在将一个静态变量作为已知有效的邮政编码提供给它

---

服务舱

class AddressService {

fun fetchCityAndState(zipCode : String) : MutableLiveData<Address>{
    var _addresses = MutableLiveData<Address>()
    val service = RetroFitClientInstance.retrofitInstace?.create(IAddressDAO::class.java)
    val call = service?.getLocation("https://api.zippopotam.us/us/$zipCode")
    call?.enqueue(object: Callback<Address> {
        override fun onFailure(call: Call<Address>, t: Throwable) {
            print("Could not retrieve service response")
        }

        override fun onResponse(call: Call<Address>, response: Response<Address>) {
            _addresses.value = response.body()
        }
    })
    return _addresses
}

地址接口

@GET
fun getLocation(@Url zipCodeUrl:String) : Call<Address>

---

}您是否正确配置了改装？共享代码或确保您传递了okhttpclient和converter（通常是gson converter）

您将在观察到此实时数据的地方看到更改

onResponse或onFailure不会立即调用，因为有异步调用尝试在onResponse块和onFailure块中添加断点

还可以在观察实时数据的位置添加断点

fetchCityAndState().observe(viewLifecycleOwner,youObserver {

})

---

我想是的，我已经把文件添加到问题中了。

@GET
fun getLocation(@Url zipCodeUrl:String) : Call<Address>

object RetroFitClientInstance {

private var retrofit : Retrofit? = null
private var BASE_URL = "https://api.zippopotam.us"

val retrofitInstace : Retrofit?
    get() {
        if (retrofit == null) {
            retrofit = retrofit2.Retrofit.Builder()
                .baseUrl(BASE_URL)
                .addConverterFactory(GsonConverterFactory.create())
                .build()
        }
        return retrofit
    }

fetchCityAndState().observe(viewLifecycleOwner,youObserver {

})