MyAdapter KotlinSynthetic

MyAdapter.kt

import kotlinx.android.synthetic.main.list_item_example.view.*

class MyAdapter : ListAdapter<String, MyAdapter.MyViewHolder>(DiffCallBack()) {

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
        val view =
            LayoutInflater.from(parent.context)
                .inflate(R.layout.list_item_example, parent, false)

        return MyViewHolder(view)
    }

    override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
        holder.bind(getItem(position).orEmpty())
    }

    class MyViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {

        fun bind(item: String) {
            // Uso do Kotlin Synthetic
            itemView.myTextView?.text = item
        }
    }

    class DiffCallBack : DiffUtil.ItemCallback<String>() {
        override fun areItemsTheSame(oldItem: String, newItem: String) = false
        override fun areContentsTheSame(oldItem: String, newItem: String) = false
    }
}