'How can I reset button drawable in RecyclerViewAdapter?

I have a recyclerView List that's color is white. Just there is a textView that's name is itemName in card design. When I click on an item, I want the color of that item to be orange. When I click on another item, I want the previous item to return to its main color, the color of the last item I clicked on to be orange. I think onBindViewHolder function is enough for this. How can I do this ?

 holder.itemName.setOnClickListener {
       holder.itemName.setBackgroundResource(R.drawable.custom_button)
 }
javaandroidkotlin


Solution 1:[1]

    holder.itemName.setOnClickListener {
        if (position==itemCount){
           // the last one
        }
    }

Solution 2:[2]

You must call notifyDataSetChanged in onItemClickListener

Ex:

holder.itemName.setOnClickListener {
       holder.itemName.setBackgroundResource(R.drawable.custom_button)
       notifyDataSetChanged()
 }

in onBindViewHolder:

if (position == positionSelected) {
 holder.itemName.setBackgroundResource(R.drawable.orange)
} else {
 holder.itemName.setBackgroundResource(R.drawable.white)
}

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 LiangKe
Solution 2 Cuong Truong Quoc

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