小编arj*_*jun的帖子

@Override
    public void onBindViewHolder(final mainscreenspecializationadap.MyViewHolder holder, final int positionz) {
        this.position = holder.getAdapterPosition();
        final specializationpojo album = albumList.get(holder.getAdapterPosition());
        holder.txtspecs.setText(album.getSplztnname());
        holder.imgspecs.setImageResource(album.getIcon());

    holder.linelayout.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            row_index=positionz;
            album.setOpened(!album.isOpened());
            notifyDataSetChanged();

        }
    });
    if(positionz==row_index){
        holder.imageView.setBackground(mContext.getResources().getDrawable(R.drawable.white_circle_background));
        holder.txtspecs.setSelected(true);
        if (type==1)
        {
            onClick.onSelected(row_index,album.isOpened(),album.isClosed());
        }
        else if(type==2)
        {   onClick.onSpecialisationSelected(album.getSplzcode(),album.getCount());
        }
    }
    else
    {
        holder.txtspecs.setSelected(false);
        holder.imageView.setBackground(mContext.getResources().getDrawable(R.drawable.green_background));
    }

}

1. I have a recycler view where I need to select only one item, so on that basis, I have to show a sub list items.

2. Now …