package com.example.tanjin.learnrec;

import android.support.v7.app.ActionBarActivity;

import android.os.Bundle;

import android.support.v7.widget.LinearLayoutManager;

import android.support.v7.widget.RecyclerView;

import android.view.View;

import android.view.ViewGroup;

import android.widget.TextView;

public class MainActivity extends ActionBarActivity {

    private RecyclerView rv;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        rv = new RecyclerView(this);

        setContentView(rv);

        rv.setLayoutManager(new LinearLayoutManager(this));

        rv.setAdapter(new RecyclerView.Adapter() {

            class ViewHolder extends RecyclerView.ViewHolder

            {

                private TextView tv;

                public ViewHolder(View itemView)

                {

                    super(itemView);

                    tv = (TextView)itemView;

                }

                public TextView getTv()

                {

                    return  tv;

                }

            }

            @Override

            public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {

                return new ViewHolder(new TextView(viewGroup.getContext()));

            }

            @Override

            public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int i) {

                ViewHolder vh = (ViewHolder)viewHolder;

                vh.getTv().setText("item"+i);

            }

            @Override

            public int getItemCount() {

                return 1000;

            }

        });

    }

}

private String[] data = new String[]{"Hello","Android"};

public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int i) {

 ViewHolder vh = (ViewHolder)viewHolder;

 vh.getTv().setText(data[i]);

}

 public int getItemCount() {

       return data.length;

        }