What is the proper way to create new instance of generic class in kotlin?

Question

I use following initialization:

val entityClass = javaClass>()
var entity = entityClass.newInstance().newInstance()

bu

Answer 1

Thanks to Kirill Rakhman I wrote a similar answer (for Android adapter). A difference here is in a parameter of the class.

private fun  createItem(
    viewGroup: ViewGroup,
    layoutRes: Int,
    method: (View) -> T
): T {
    val view = LayoutInflater.from(viewGroup.context).inflate(layoutRes, viewGroup, false)
    return method(view) // Creates T(view).
}

Then use it this way:

override fun onCreateViewHolder(viewGroup: ViewGroup, viewType: Int): AbstractViewHolder {
    return when (viewType) {
        LOADER -> createItem(viewGroup, R.layout.row_loader, ::LoaderViewHolder)
        DATE -> createItem(viewGroup, R.layout.row_date, ::DateViewHolder)
        else -> throw IllegalStateException("Wrong class")
    }
}

Here LoaderViewHolder and DateViewHolder are descendants of AbstractViewHolder.