Adding an onclick listener to a recyclerview item

OnClickListenerToRecyclerViewItem.kt

override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
    val category = categoryList[position]

    // Set height of cardview based on screen width
    val displayMetrics = context.resources.displayMetrics
    val finalHeight = displayMetrics.widthPixels / 2
    holder.cardView.layoutParams.height = finalHeight

    holder.categoryName.text = category.oc
    holder.categoryPhoto.loadUrl(category.icon)

    holder.categoryPhoto.setOnClickListener { view ->

       // categoryPhoto clicked.
       // start your activity here
    }      
}