RecyclerView itemClickListener in Kotlin [closed]

Answer 1

I have a little bit different approach. You can create an extension for your ViewHolder

fun  T.listen(event: (position: Int, type: Int) -> Unit): T {
    itemView.setOnClickListener {
        event.invoke(getAdapterPosition(), getItemViewType())
    }
    return this
}

Then use it in adapter like this

class MyAdapter : RecyclerView.Adapter() {

    val items: MutableList = arrayListOf()

    override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): MyViewHolder? {
        val inflater = LayoutInflater.from(parent!!.getContext())
        val view = inflater.inflate(R.layout.item_view, parent, false)
        return MyViewHolder(view).listen { pos, type ->
            val item = items.get(pos)
            //TODO do other stuff here
        }
    }

    override fun onBindViewHolder(holder: MyViewHolder?, position: Int) {

    }

    override fun getItemCount(): Int {
        return items.size()
    }


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

    }
}

I am working with my colleagues on library providing such extensions.