A simple recyclerView adapter/viewHolder

adapter.kt

class CurrencyAdapter: RecyclerView.Adapter<CurrencyAdapter.ViewHolder>() {

    var data: List<YourModelName> = emptyList()
        set(value) {
            field = value
            notifyDataSetChanged()
        }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
        return ViewHolder(parent)
    }

    override fun getItemCount() = data.size

    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
        holder.bind(data[position])
    }

    inner class ViewHolder(parent: ViewGroup): RecyclerView.ViewHolder(parent.inflate(R.layout.item_layoutname)) {
        fun bind(model: YourModelName)= with(itemView) {

            //TODO

            itemView
        }
    }
}

private fun ViewGroup.inflate(layout: Int): View {
    return LayoutInflater.from(context).inflate(layout, this, false)
}