RecyclerView OnClickListener using interface

Question

I use RecyclerView adapter to display data inside an activity, I want to implement onClickListener inside the activity, currently, I am setting

Answer 1

[BEST SOLUTION]

In my way, I just created a single instance of ClickListener, And it dispatches click event to both RecyclerView and Activity or Fragment:

class LeagueAdapter(onLeagueSelected: (League, Int, View) -> Unit) : 
RecyclerView.Adapter() {

    val dataSet = arrayListOf()

    private val clickListener = View.OnClickListener {
        it?.let  {
            val adapterPosition = it.tag as Int
            onLeagueSelected(dataSet[adapterPosition], adapterPosition, it)

            // perform adapter related action here ...
        }
    }


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

    override fun onBindViewHolder(holder: LeagueHolder, position: Int) {
        // put item position in tag field
        holder.itemView.tag = position
        holder.itemView.setOnClickListener(clickListener)
    }

}

And inside Activity, we have something like this:

private val headerAdapter = LeagueAdapter { league, i, view ->
    Log.e(TAG, "item clicked $i")
}