CODEWITHSUNDEEP
android-recyclerviewkotlinadapter
codeKiller
codeKiller

Reputation: 5739

SetOnClickListener in a ViewHolder in Kotlin Adapter

I am trying to write my first RecyclerView custom adapter in Kotlin. Each View is pretty simple, it is a CardView with picture + name on it.

I am facing two problems:

ERROR 1 - fun bindItems is giving me error when i try the following to assign the name:

// THIS DOES GIVE ME ERROR, IT MARKS txvW_recycItem_userName IN RED
itemView.txvW_recycItem_userName = user.name

// HOWEVER THIS WORKS
val tvw_name = itemView.findViewById(R.id.txvW_recycItem_userName) as TextView
tvw_name.text = user.name

ERROR 2 - onBindViewHolder does not let me add a listener like this: 

holder.bindItems(user[position])
holder.setOnClickListener{
        //do whatever
}

And here it is the complete code for the adapter:

 class CustomRecyclerAdapter(var user : ArrayList<Users>) : RecyclerView.Adapter<CustomRecyclerAdapter.MyViewHolder>(){

        override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CustomRecyclerAdapter.MyViewHolder {
            val v = LayoutInflater.from(parent.context).inflate(R.layout.recycler_item, parent, false)
        return MyViewHolder(v)
    }

    override fun onBindViewHolder(holder: MyViewHolder, position: Int){
        holder.bindItems(user[position])
    }

    override fun getItemCount() = user.size

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

            fun bindItems(user : Users){

                // HERE IT IS THE LINE DESCRIBED ON ERROR 1
                //itemView.txvW_recycItem_userName = user.name

                val image = itemView.findViewById(R.id.imgvW_mainPic) as ImageView
                val tvw_name = itemView.findViewById(R.id.txvW_recycItem_userName) as TextView

                tvw_name.text = user.name
                image.setImageResource(user.image)
            }
        }

    }

----> EDIT <----

I am not sure if that is an answer for my ERROR 2 but...the following seems to be working:

holder.itemView.setOnClickListener({
            // do something here
        })

Upvotes: 2

Views: 2286

Answers (1)

Akshay Raiyani
Akshay Raiyani

Reputation: 1323

I am using setOnClickListener in adapter like this : 

holder.itemView.setOnClickListener(){

}

its perfectly working for me.

Upvotes: 4

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