Adding listener to RecyclerView Items & Views

MyAdapter.kt

// !!! 
// If you need to handle clicking on the entire element only, you can omit adding View to listener lambda - listener(myModel)
// so in "bind" method you can write only - view.setOnclickListener { listener.invoke(myViewModel) }
class MyAdapter (private val listener: (MyModel, View) -> Unit): RecyclerView.Adapter<MyAdapter.MyViewHolder>{
  val myItemList = listOf<MyModel>()
  //...

    override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
        holder.bind(myItemList[position], listener) //bind listener to position
    }
  
  //...
  
  inner class MyViewHolder(view: View): RecyclerView.ViewHolder(view) {
    val btnOne = view.findViewById<Button>(R.id.some_button)
    val someView = view.findViewById<View>(R.id.some_view)
    
  //...
    
    fun bind(myModel: MyModel, listener: (MyModel, View) -> Unit){
        btnOne.setOnClickListener { listener.invoke(myModel, btnOne) }
        someView.setOnClickListener { listener.invoke(myModel, someView) }
      // if you need to handle clicking on the entire element only
      // view.setOnClickListener { listener.invoke(myModel) } 
      //...
    }
  }
}

// Usage in Activity or Fragment
// In onCreate or near RV initialization
val adapter = MyAdapter { doSomeLogic ( myModel, view ) } 

fun doSomeLogic (myModel, view){
  when(view.id){
    R.id.some_button -> doButtonLogic(myModel) // need to implement
    R.id.some_view -> doViewLogic(myModel) // need to implement
  }
}