how to select and de-select an item in RecyclerView? How to Highlight selected item only in recycler view?

Question

@Override
    public void onBindViewHolder(final mainscreenspecializationadap.MyViewHolder holder, final int positionz) {
        this.position = holder.getAdapterPo         


        

Answer 1

Here is the solution for your requirement

    public class AdapterClass extends RecyclerView.Adapter {
        private int selected_position = -1;

        @Override
        public void onBindViewHolder(AdapterClass.ViewHolder holder, final int position) {
            if (selected_position == position) {
                // do your stuff here like
                //Change selected item background color and Show sub item views

            } else {
                  // do your stuff here like
                  //Change  unselected item background color and Hide sub item views
            }
  // rest of the code here

    holder.linelayout.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View view) {
              if(selected_position==position){
                        selected_position=-1;
                        notifyDataSetChanged();
                        return;
                    }
                    selected_position = position;
                    notifyDataSetChanged();

            }
        });

    //rest of the code here

     }


}