Android - Kotlin - object must be declared abstract or implement abstract member

Question

I have set an ItemClickLister for my RecyclerView like this:

ItemClickSupport.addTo(recyclerView!!).setOnItemClickListener(
                    object : Item         


        

Answer 1

Try with it:

ItemClickSupport.addTo(listView).setOnItemClickListener(object : ItemClickSupport.OnItemClickListener{
        override fun onItemClicked(recyclerView: RecyclerView, position: Int, v: View) {
            val row = recyclerView!!.getChildAt(position)
            val el = row.findViewById(R.id.active_expandablelayout) as ExpandableLayout

            if (el.isExpanded) {
                el.collapse()
            } else {
                el.expand()
            }
        }

    })