Java Type Generic as Argument for GSON

Question

In GSON to get a list of objects you do

Gson gson = new Gson();
Type token = new TypeToken>(){}.getType();
return gson.fromJson(json         


        

Answer 1

Kotlin "ListOfSomething" solution that worked for me:

fun  getGsonList(json: String, kclass: KClass) : List {

    return getGsonInstance().fromJson>(json, ListOfSomething(kclass.java))
}


internal class ListOfSomething(wrapped: Class) : ParameterizedType {

    private val wrapped: Class<*>

    init {
        this.wrapped = wrapped
    }

    override fun getActualTypeArguments(): Array {
        return arrayOf(wrapped)
    }

    override fun getRawType(): Type {
        return ArrayList::class.java
    }

    override fun getOwnerType(): Type? {
        return null
    }
}