Using Factory pattern for RecyclerView

Adapter.kt

class SomeAdapter(
  val factory1: ViewHolderFactory1,
  val factory2: ViewHOlderFactory2
): RecyclerView.Adapter<RecyclerView.ViewHolder>() {
  override fun getItemViewType(position: Int) = if (position == 0) 1 else 2
  
  override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) = when (viewType) {
      1    -> factory1.createViewHolder(parent)
      2    -> factory2.createViewHolder(parent)
      else -> error("This should not be possible")
  }
}

ViewHolderFactory1.kt

class ViewHolderFactory1 {
  fun createViewHolder(parent: ViewGroup) = SomeViewHolder(
    LayoutInflater.from(parent.context)
      .inflate(R.layout.something, parent, false))
}