Xcihnegn Xcihnegn - 5 months ago 43
Android Question

Get clicked item and its position in RecyclerView

I am replacing my ListView with RecyclerView, list showing ok, but I would like to know how to get clicked item and its position, similar to the method OnItemClickListener.onItemClick(AdapterView parent, View v, int position, long id) we use in ListView.

Thanks for ideas!

Answer

Based on the link: Why doesn't RecyclerView have onItemClickListener()? and How RecyclerView is different from Listview?, and also @Duncan's general idea, I give my solution here:

  • define one interface 'RecyclerViewClickListener' for passing message from adapter to Activity/Fragment:

    public interface RecyclerViewClickListener
    {
    
         public void recyclerViewListClicked(View v, int position);
    }
    
  • In Activity/Fragment implement the interface, and also pass listener to adapter:

    @Override
    public void recyclerViewListClicked(View v, int position){... ...}
    
    //set up adapter and pass clicked listener this
    myAdapter = new MyRecyclerViewAdapter(context, this);
    
  • In Adapter and ViewHolder:

    public class MyRecyclerViewAdapter extends RecyclerView.Adapter<MyRecyclerViewAdapter.ItemViewHolder> {
    
       ... ... 
       private Context context;
       private static RecyclerViewClickListener itemListener;
    
    
       public MyRecyclerViewAdapter(Context context, RecyclerViewClickListener itemListener) {
    
            this.context = context;
            this.itemListener = itemListener;
            ... ...
       }
    
    
       //ViewHolder class implement OnClickListener, 
       //set clicklistener to itemView and, 
       //send message back to Activity/Fragment 
       public static class ItemViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
    
            ... ...
    
            public ItemViewHolder(View convertView)
            {
                super(convertView);
                ... ...
    
                convertView.setOnClickListener(this);
            }
    
    
           @Override
           public void onClick(View v)
           {
              itemListener.recyclerViewListClicked(v, this.getPosition());      
    
           }
    
       }
    
    }
    

After testing, it works fine.


[UPDATE]

Since API 22, RecyclerView.ViewHoler.getPosition() is deprecated, so instead with getLayoutPosition().