Pass A Sealed Class As Function Argument Android

I have a sealed class which represents the Retrofit Response of my API. sealed class NetworkResponse { data class Success(val

Solution 1:

Since you care only about ApiError, NetworkError and UnknownError, which all derive from NetworkResponse but don't use the first generic type, you can specify that you don't care about it using * (Actually, depending on what you want to do with mError, you can replace U with * too - that is the case in the code below, but I introduced U just in case). In that case, you should accept a NetworkReponse:

fun <U : Any> networkErrorHanlder(mError: NetworkResponse<*, U>) {
    when(mError) {
        is NetworkResponse.ApiError ->
            print("Api stuff: ${mError.body}")
        is NetworkResponse.NetworkError ->
            print ("Network stuff: ${mError.error}")
        is NetworkResponse.UnknownError ->
            print("Unknown: ${mError.error}")
        else -> print("It must've been a Success...")
    }
}