I have a problem with a retrofit with Kotlin the code is as follows:
MainActivity.kt
val apiInterface = ApiInterface.create().getCountry()
apiInterface.enqueue( object : Callback<List<data>>{
override fun onResponse(call: Call<List<data>>?, response: Response<List<data>>?) {
if(response?.body() != null){
val adapter = ArrayAdapter(this@MainActivity,android.R.layout.simple_spinner_item,response.body()!!)
binding.spCountry.adapter=adapter //spCountry is a spinner
}
}
override fun onFailure(call: Call<List<data>>?, t: Throwable?) {}
})
ApiInterface.kt
interface ApiInterface {
@GET("/v3.1/all")
fun getCountry() : Call<List<data>>
companion object {
var BASE_URL = "https://restcountries.com/v3.1/all/"
fun create() : ApiInterface {
val retrofit = Retrofit.Builder()
.addConverterFactory(GsonConverterFactory.create())
.baseUrl(BASE_URL)
.build()
return retrofit.create(ApiInterface::class.java)
}
}
}
data.kt
data class data(
@SerializedName("name") val name: name
)
data class name(
@SerializedName("common") val common: String
)
The result I get is this in the spinner and I just want the name of the country
CodePudding user response:
You can perform a simple map
operation to convert your List<data>
to List<String>
.
val originalList: List<data> = // Response from retrofit
val newList: List<String> = originalList.map { it.name.common }