刷新

public class MyApplication extends Application {
    private static OkHttpClient okHttpClient;
    @Override
    public void onCreate() {
        super.onCreate();
        okHttpClient = new OkHttpClient();
        okHttpClient = okHttpClient
                .newBuilder()
                .connectTimeout(5, TimeUnit.SECONDS)
                .readTimeout(5,TimeUnit.SECONDS)
                .build();
    }

    public static OkHttpClient getokhttp() {
        return okHttpClient;
    }

}

package com.example.recyclerviewdemo;

import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.widget.Toast;

import com.bawei.swiperefreshlayoutlibrary.SwipyRefreshLayout;
import com.bawei.swiperefreshlayoutlibrary.SwipyRefreshLayoutDirection;
import com.example.recyclerviewdemo.app.MyApplication;
import com.example.recyclerviewdemo.bean.NewsInfo;
import com.google.gson.Gson;

import java.io.IOException;
import java.util.List;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Request;
import okhttp3.Response;

public class MainActivity extends AppCompatActivity {

    private int page = 1;
    private RecyclerView recyclerView;
    private List<NewsInfo.GoodsListBean> list;
    private SwipyRefreshLayout swipyRefreshLayout;
    private Handler handler = null;
    private RecyclerAdapter recycler;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        handler = new Handler();

        //找到控件
        recyclerView = (RecyclerView) findViewById(R.id.recyclerview);
        swipyRefreshLayout = (SwipyRefreshLayout) findViewById(R.id.refresh);

        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(MainActivity.this);
        linearLayoutManager.setOrientation(linearLayoutManager.VERTICAL);
        recyclerView.setLayoutManager(linearLayoutManager);


        //刷新
        swipyRefreshLayout.setDirection(SwipyRefreshLayoutDirection.BOTH);
        swipyRefreshLayout.setOnRefreshListener(new SwipyRefreshLayout.OnRefreshListener()

        {
            @Override
            public void onRefresh(int index) {

                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        page++;
                        getData();
                        swipyRefreshLayout.setRefreshing(false);
                        Toast.makeText(MainActivity.this, "刷新成功", Toast.LENGTH_SHORT).show();

                        recycler.notifyDataSetChanged();

                    }
                }, 2000);


            }

            @Override
            public void onLoad(int index) {
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        page++;
                        getData();
                        swipyRefreshLayout.setRefreshing(false);
                        Toast.makeText(MainActivity.this, "加载成功", Toast.LENGTH_SHORT).show();
                        recycler.notifyDataSetChanged();

                    }
                }, 2000);

            }

        });

        getData();

    }

    //使用okhttp获取网络数据
    private void getData() {
        Request build = new Request.Builder().url("http://apiv3.yangkeduo.com/v5/newlist?page=" + page + "&size=20").build();

        MyApplication.getokhttp().newCall(build).enqueue(new Callback() {

            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if (response.isSuccessful()) {
                    String result = response.body().string();
                    //解析数据
                    Gson gson = new Gson();
                    NewsInfo newsInfo = gson.fromJson(result, NewsInfo.class);
                    list = newsInfo.getGoods_list();
                    runOnUiThread(new Runnable() {

                        @Override
                        public void run() {
                            recycler = new RecyclerAdapter(list, MainActivity.this);
                            recyclerView.setAdapter(recycler);
                        }
                    });

                }

            }
        });
    }
}

package com.example.recyclerviewdemo;

import android.content.Context;
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 android.widget.Toast;

import com.bumptech.glide.Glide;
import com.example.recyclerviewdemo.bean.NewsInfo;

import java.util.List;

/**
 * Created by xxsj on 2017/10/18.
 */

public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.MyViewHolder>{
    private List<NewsInfo.GoodsListBean> list;
    private Context context;

    public RecyclerAdapter(List<NewsInfo.GoodsListBean> list, Context context) {
        this.list = list;
        this.context = context;
    }

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

    }

    @Override
    public void onBindViewHolder(MyViewHolder holder, final int position) {
        holder.textview.setText(list.get(position).getGoods_name());
        holder.textview.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(context, list.get(position).getGoods_name(), Toast.LENGTH_SHORT).show();
            }
        });
        final String image = list.get(position).getThumb_url();
        Glide.with(context)
                .load(image)
                .into(holder.image);
    }

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

    public class MyViewHolder extends RecyclerView.ViewHolder {
        private ImageView image;
        private TextView textview;

        public MyViewHolder(View itemView) {
            super(itemView);
            image = (ImageView) itemView.findViewById(R.id.image);
            textview = (TextView) itemView.findViewById(R.id.textview);
        }
    }
}

 <com.bawei.swiperefreshlayoutlibrary.SwipyRefreshLayout
        android:id="@+id/refresh"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recyclerview"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"></android.support.v7.widget.RecyclerView>

    </com.bawei.swiperefreshlayoutlibrary.SwipyRefreshLayout>