Perform click event on RecyclerView's item by "Position"

Question

I am in RecyclerView's Adapter.

From onBindViewHolder() I am able to perform onClick event for RecyclerView's row (ViewHolder's Item).

Is it possible to call onClick() by using Position ?

@PatelJaimin Can you please help me out ? Any particular methods of RecyclerView.ViewHolder ? — Amey Jahagirdar, Mar 01 '17 at 10:09
Check out this answer. Maybe this is what you are looking for - http://stackoverflow.com/a/29142005/1649353 — Ambuj Kathotiya, Mar 01 '17 at 10:15
It will perform click event by position automatically.Please see my example below. — Patel Jaimin, Mar 01 '17 at 10:18

score 1 · Answer 1 · answered Mar 01 '17 at 10:14

You can do something like this

Adapter:

public class OffersAdapter extends RecyclerView.Adapter<OffersAdapter.ViewHolder> {
    private List<Offer> mDataset;
    private OffersListner mListener;

    public OffersAdapter(List<Offer> response) {
        mDataset = response;
    }

    public void setListener(OffersListner listener) {
        mListener = listener;
    }

    @Override
    public int getItemViewType(int position) {
        return position;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_row_offers, parent, false);
        return new ViewHolder(v);
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        final int pos = getItemViewType(position);

        holder.mLayout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mListener.onOfferChoice(mDataset.get(pos));
            }
        });
    }

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

    public interface OffersListner {
        void onOfferChoice(Offer offer);
    }

    public static class ViewHolder extends RecyclerView.ViewHolder {
        @BindView(R.id.item_offers_layout)
        LinearLayout mLayout;

        public ViewHolder(View itemView) {
            super(itemView);
            ButterKnife.bind(this, itemView);
        }
    }
}

Activity:

public class OffersSelectActivity extends BaseEventActivity implements OffersAdapter.OffersListner {
.
.
.

    private void setOffers(List<Offer> offers) {
        OffersAdapter mAdapter = new OffersAdapter(offers);
        mAdapter.setListener(this);

        mOffers.setHasFixedSize(true);
        mOffers.setLayoutManager(new LinearLayoutManager(this));
        mOffers.setAdapter(mAdapter);
    }



    @Override
    public void onOfferChoice(Offer offer) {
        Intent intent = new Intent(this, OfferActivity.class);
        intent.putExtra(Constants.EXTRA_OFFER_ID, offer.id);
        intent.putExtra(Constants.EXTRA_OFFER_NAME, offer.name);
        startActivity(intent);
    }
}

score 0 · Answer 2 · answered Mar 01 '17 at 10:17

Here is example :

 public class NavigationDrawerAdapter extends RecyclerView.Adapter<NavigationDrawerAdapter.MyViewHolder> {
List<Pojo_menu> data;

public NavigationDrawerAdapter(Context mContext, List<Pojo_menu> data) {
    this.data = data;
}

public class MyViewHolder extends RecyclerView.ViewHolder {

    TextView title, tv_count;
    RelativeLayout mRelativeLayout;
    private SparseBooleanArray selectedItems = new SparseBooleanArray();

    public MyViewHolder(View itemView) {
        super(itemView);
        title = (TextView) itemView.findViewById(R.id.item_name);
        tv_count = (TextView) itemView.findViewById(R.id.tv_count);
        mRelativeLayout = (RelativeLayout) itemView.findViewById(R.id.my_nav_menu);

    }

}

public NavigationDrawerAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View itemView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.nav_drawer_row, parent, false);
    return new NavigationDrawerAdapter.MyViewHolder(itemView);
}

public void onBindViewHolder(NavigationDrawerAdapter.MyViewHolder holder, int position) {
    Pojo_menu current = data.get(position);
    String count = current.getCount();
    holder.tv_count.setText(count);
    holder.title.setText(current.getName());
    holder.title.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

        }
    });
}

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

}

score 0 · Answer 3 · answered Mar 01 '17 at 10:19

Just set onClickListener to the holder

@Override
    public void onBindViewHolder(ViewHolder holder, int position) {

        holder.setOnClickListner(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                 // to the thing you want refer to the position by holder.getAdapterPosition()
        }
      };)
    }

It not recommended to use position directly since you have to declare it final. Therefore, when referring to the position inside onClick please use holder.getAdapterPosition() instead.

Perform click event on RecyclerView's item by "Position"

3 Answers3