RecyclerViewAdapter.java

package com.tutosandroidfrance.designsupporttest;

import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.squareup.picasso.Picasso;
import com.tutosandroidfrance.designsupporttest.model.MyObject;

import java.util.ArrayList;
import java.util.List;

import butterknife.ButterKnife;
import butterknife.InjectView;

/**
 * Created by florentchampigny
 */
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ContentViewHolder> {

    public interface RecyclerViewAdapterCallBack {
        void onRecyclerViewElementClicked(View view, int position, MyObject element);
    }

    RecyclerViewAdapterCallBack callback;
    List<MyObject> contents = new ArrayList<>();

    public RecyclerViewAdapter(RecyclerViewAdapterCallBack callback) {
        this.callback = callback;
    }

    public void addObjects(List<MyObject> contents) {
        this.contents.addAll(contents);
        super.notifyDataSetChanged();
    }

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

    @Override
    public ContentViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.cell_cards, parent, false);
        return new ContentViewHolder(view, callback);
    }


    @Override
    public void onBindViewHolder(ContentViewHolder holder, int position) {
        holder.bind(contents.get(position));
    }

    public class ContentViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

        private RecyclerViewAdapterCallBack callback;
        private MyObject myObject;

        @InjectView(R.id.text)
        TextView textViewView;
        @InjectView(R.id.image)
        ImageView imageView;

        public ContentViewHolder(View itemView, RecyclerViewAdapterCallBack callback) {
            super(itemView);
            this.callback = callback;

            ButterKnife.inject(this, itemView);

            this.itemView.setOnClickListener(this);
        }

        public void bind(MyObject myObject) {
            this.myObject = myObject;
            textViewView.setText(myObject.getText());
            Picasso.with(imageView.getContext()).load(myObject.getImageUrl()).centerCrop().fit().into(imageView);
        }

        @Override
        public void onClick(View v) {
            this.callback.onRecyclerViewElementClicked(this.itemView, this.getAdapterPosition(), myObject);
        }
    }
}