Getting a Reference to ViewHolder on RecyclerView Click

Question

This is my first attempt at implementing the RecyclerView. I have implemented a Callback interface between the Adapter and the ViewHolder Class to handle Click Events on the UI elements (buttons). I am having problems getting a reference to the ViewHolder that the click occurred in. I can click the Button for the first item in the list, however the action that i'd defined is performed on the last viewholder in my recycler view. I finally figured out to pass the position through my interface, but I'm struggling to understand how to get a reference to that viewholder` from it.

    public class RoomAdapter extends RecyclerView.Adapter<RoomAdapter.RoomViewHolder> {     List<Room> mRooms;     public RoomAdapter(List<Room> rooms) {         mRooms = rooms;     }      @Override     public RoomViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {         final View viewItem = LayoutInflater                 .from(viewGroup.getContext())                 .inflate(R.layout.room_rv_item,viewGroup,false);         return vh = new RoomViewHolder(viewItem,new IRoomViewClick() {             @Override             public void editname(int pos) {              }         });     }      @Override     public void onBindViewHolder(RoomViewHolder roomViewHolder, int i) {         Room r = getItem(i);         roomViewHolder.label.setText(r.name);       }     public Room getItem(int position)     {         return mRooms.get(position);     }     @Override     public long getItemId(int position) {         return mRooms.get(position).getId();     }      @Override     public int getItemCount() {         return mRooms.size();     }      public static class RoomViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener     {         TextView label;         Button editBtn;         LinearLayout labelView;         Button saveBtn;         Button deleteBtn;         EditText editNameET;         IRoomViewClick mListener;         public RoomViewHolder(View itemView, IRoomViewClick listener) {             super(itemView);             labelView = (LinearLayout) itemView.findViewById(R.id.labelview);             mListener = listener;             editBtn =(Button) itemView.findViewById(R.id.editbtn);             editBtn.setOnClickListener(this);             label = (TextView) itemView.findViewById(R.id.room_listitem_label);          }          @Override         public void onClick(View view) {             int pos = getPosition();             mListener.editname(pos);            }     }     public static interface IRoomViewClick     {         public void editname(int pos);     }  } 

Answer 1

you can set a tag for the editBtn in onBindViewHolder:

    public RoomViewHolder(View itemView, IRoomViewClick listener) {         ....         editBtn =(Button) itemView.findViewById(R.id.editbtn);         //add tag for this view         editBtn.setTag(this);         ....    } 

and get it in onClick

    @Override     public void onClick(View view) {         //getTag         RoomViewHolder holder = (RoomViewHolder )(view.getTag());         int pos = getPosition();         mListener.editname(pos);     ...     }