one item clickable in RecyclerView in android

Question

i'm working on some kind of educational game, in this game i represent nine levels in recyclerview each level is enabled when the previous one, now i'm trying to make one item in the recycler View enable and the others unable, i been searching in youtube , and other websites, my question is how to do it?(note: i'm new in android studio so keep it simple as possible).

public class ListAdapter extends RecyclerView.Adapter<ListAdapter.ViewHolder> {

private List<ItemView> items;
private Context context;

public ListAdapter(List<ItemView> items , Context context){
    this.items = items;
    this.context = context;
}

@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
   View view = LayoutInflater.from(parent.getContext())
           .inflate(R.layout.item_list , parent , false);






return new ViewHolder(view);
}

@Override
public void onBindViewHolder(ViewHolder holder, int position) {
     ItemView i = items.get(position);



                 holder.setHeadText(i.getHead());
     holder.setScoreText(i.getScore());


}

@Override
public int getItemCount() {
    return items.size();
}

class ViewHolder extends RecyclerView.ViewHolder {
    private TextView headText , scoreText;

    public ViewHolder(View itemView) {
        super(itemView);

        headText = (TextView)itemView.findViewById(R.id.head);
        scoreText = (TextView)itemView.findViewById(R.id.score);
    }

    public void setHeadText(String headText) {
        this.headText.setText(headText);
    }

    public void setScoreText(String scoreText) {
        this.scoreText.setText(scoreText);
    }
}

}

Answer 1

You can achieve this by

Add a interface like this in your adapter class

 public interface ItemClickListner{
    void onItemClick(ItemView item);
}

Initialize this Interface

    private ItemClickListner clickManager;

Add a Param Adapter class constructor

public ListAdapter(List<ItemView> items , Context context,ItemClickListner clickManager){
this.items = items;
this.context = context;
this.clickManager=clickManager;
}

In Your ViewHolder Add a OnClickListner for itemView

itemView.setOnClickListener(this);

in Your onClick override function

if(clickManager!=null)
    clickManager.onItemClick(items.get(getAdapterPosition()));