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 V

Answer 1

Actually you can do better than getTag by calling getChildViewHolder(View child) on the RecyclerView:

@Override
public void onClick(View v) {
    MyHolder holder = (MyHolder) mRecyclerView.getChildViewHolder(v);
    holder.textView.setText("Clicked!");
}

Answer 2

@Override
public void onClick(View v) {
    int pos = getAdapterPosition(); //getPosition() is deprecated 
    notifyItemChanged(pos);
}

notifyItemChanged will notify your onBindViewHolder, then you can do something like this

public void onBindViewHolder(RoomViewHolder roomViewHolder, int i) {
    Room r = getItem(i);
    roomViewHolder.label.setText(r.name);
    if(i == pos){ // Do Something }

}

Whenever you click the item, it will change pos' value and trigger the // Do Something

Answer 3

Turn out that RecycleView saves the view position in the view layout params, so if you just want the view position from to get the right item from the list you can use this:

RecyclerView.LayoutParams lp = (RecyclerView.LayoutParams) v.getLayoutParams();
lp.getViewPosition();

Answer 4

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);
    ...
    }