Retrofit+RecyclerView+SwipeRefreshlayout实现上拉刷新和分页加载

使用Retrofit+RecyclerView+Swiperefreshlayout实现分页加载数据，包括上拉刷新和下拉加载更多。
demo中的api参考地址
http://gank.io/api/data/福利/5/1
用到的知识点：

1. Retrofit实现网络请求
2. Recyclerview列表
3. Swiperefreshlayout实现下拉刷新，上拉加载更多
4. 加载图片用Glide

项目目录结构

运行效果图

1、依赖

  compile 'com.squareup.retrofit2:retrofit:2.0.1'
    compile 'com.squareup.retrofit2:converter-gson:2.0.1'
    compile 'com.github.bumptech.glide:glide:3.7.0'

2、retorfit的API配置

public interface Api {
    //http://gank.io/api/data/福利/5/1
    @GET("api/data/福利/{pageCount}/{pageIndex}")
    Call getData(@Path("pageCount") int pageCount,
                 @Path("pageIndex") int pageIndex);
}

3、google自带的Swiperefreshlayout只有下拉刷新，通过对代码配置，加入下拉加载更多

"1.0" encoding="utf-8"?>
"http://schemas.android.com/apk/res/android"
    xmlns:my="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context="com.example.administrator.retrofit.MainActivity">

    <com.example.administrator.retrofit.pull.SwipyRefreshLayout
        android:id="@+id/refreshLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        my:direction="both">

        .support.v7.widget.RecyclerView
            android:id="@+id/recyerview"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    com.example.administrator.retrofit.pull.SwipyRefreshLayout>

4、请求返回

{
  "error": false, 
  "results": [
    {
      "_id": "5817e1fa421aa913769745fe", 
      "createdAt": "2016-11-01T08:29:46.640Z", 
      "desc": "11-1", 
      "publishedAt": "2016-11-01T11:46:01.617Z", 
      "source": "chrome", 
      "type": "\u798f\u5229", 
      "url": "http://ww1.sinaimg.cn/large/610dc034jw1f9cayjaa96j20u011hqbs.jpg", 
      "used": true, 
      "who": "daimajia"
    }, 
    {
      "_id": "5816871a421aa91369f959b6", 
      "createdAt": "2016-10-31T07:49:46.592Z", 
      "desc": "10-31", 
      "publishedAt": "2016-10-31T11:43:44.770Z", 
      "source": "chrome", 
      "type": "\u798f\u5229", 
      "url": "http://ww2.sinaimg.cn/large/610dc034jw1f9b46kpoeoj20ku0kuwhc.jpg", 
      "used": true, 
      "who": "daimajia"
    }, 
    {
      "_id": "581218e9421aa90e799ec222", 
      "createdAt": "2016-10-27T23:10:33.618Z", 
      "desc": "10-28", 
      "publishedAt": "2016-10-28T11:29:36.510Z", 
      "source": "chrome", 
      "type": "\u798f\u5229", 
      "url": "http://ww2.sinaimg.cn/large/610dc034jw1f978bh1cerj20u00u0767.jpg", 
      "used": true, 
      "who": "daimajia"
    }, 
    {
      "_id": "5811596a421aa90e6f21b45e", 
      "createdAt": "2016-10-27T09:33:30.47Z", 
      "desc": "10-27", 
      "publishedAt": "2016-10-27T11:41:45.88Z", 
      "source": "chrome", 
      "type": "\u798f\u5229", 
      "url": "http://ww4.sinaimg.cn/large/610dc034gw1f96kp6faayj20u00jywg9.jpg", 
      "used": true, 
      "who": "daimajia"
    }, 
    {
      "_id": "58101f83421aa90e6f21b44b", 
      "createdAt": "2016-10-26T11:14:11.143Z", 
      "desc": "10-26", 
      "publishedAt": "2016-10-26T11:28:10.759Z", 
      "source": "chrome", 
      "type": "\u798f\u5229", 
      "url": "http://ww4.sinaimg.cn/large/610dc034jw1f95hzq3p4rj20u011htbm.jpg", 
      "used": true, 
      "who": "daimajia"
    }
  ]
}

Bean类

public class DataInfo {

    public String error;
    public ArrayList results;
    public class Info{
        public String _id;
        public String url;
    }
}

4、activity中的代码

package com.example.administrator.retrofit;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.widget.Toast;

import com.example.administrator.retrofit.pull.SwipyRefreshLayout;

import java.util.ArrayList;

import api.Api;
import bean.DataInfo;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;

import static com.example.administrator.retrofit.R.id.recyerview;

public class MainActivity extends AppCompatActivity implements MyAdapter.OnRecyclerViewItemClickListener,SwipyRefreshLayout.OnRefreshListener {
    private ArrayList arrayList;
    private RecyclerView recyclerView;

    private MyAdapter adapter;

    private SwipyRefreshLayout refreshLayout;

    private LinearLayoutManager linearLayoutManager;

    private int pages=1;

    private final int TOP_REFRESH = 1;
    private final int BOTTOM_REFRESH = 2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        recyclerView= (RecyclerView) findViewById(recyerview);
        refreshLayout= (SwipyRefreshLayout) findViewById(R.id.refreshLayout);
        refreshLayout.setOnRefreshListener(this);
        arrayList=new ArrayList();
        initData(1);
        linearLayoutManager=new LinearLayoutManager(this);
        linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
        recyclerView.setLayoutManager(linearLayoutManager);
        adapter=new MyAdapter(this,arrayList);
        adapter.setOnItemClickListener(this);
        recyclerView.setAdapter(adapter);
    }

    private void initData(int pages) {
        //使用retrofit配置api
        Retrofit retrofit=new Retrofit.Builder()
                .baseUrl("http://gank.io/")
                .addConverterFactory(GsonConverterFactory.create())
                .build();
        Api api =retrofit.create(Api.class);
        Call call=api.getData(5,pages);
        call.enqueue(new Callback() {
            @Override
            public void onResponse(Call call, Response response) {

                arrayList.addAll(response.body().results);
                adapter.notifyDataSetChanged();
                Log.i("aaaa", arrayList.size() + "");
                refreshLayout.setRefreshing(false);

            }

            @Override
            public void onFailure(Call call, Throwable t) {
                refreshLayout.setRefreshing(false);
            }
        });
    }

    @Override
    public void onItemClick(View view, DataInfo.Info data) {
        Toast.makeText(MainActivity.this, "click item " + data, Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onRefresh(int index) {
        dataOption(TOP_REFRESH);
        Toast.makeText(this,"已经是最新数据",Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onLoad(int index) {
        dataOption(BOTTOM_REFRESH);
        Toast.makeText(this,"加载完成",Toast.LENGTH_SHORT).show();
    }
    private void dataOption(int option){
        switch (option) {
            case TOP_REFRESH:
                //下拉刷新
                arrayList.clear();
                initData(1);
                break;
            case BOTTOM_REFRESH:
                //上拉加载更多
                pages++;
                initData(pages);
                break;
        }
       // adapter.notifyDataSetChanged();

    }

}

5、在adapter中的代码

package com.example.administrator.retrofit;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.RecyclerView.ViewHolder;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.bumptech.glide.Glide;

import java.util.ArrayList;

import bean.DataInfo;

/**
 * Created by Administrator on 2016/6/25.
 */
public class MyAdapter extends RecyclerView.Adapter implements View.OnClickListener {
    private Context context;
    private ArrayList list;

    public MyAdapter(Context context, ArrayList list) {
        this.context = context;
        this.list = list;
    }
    private OnRecyclerViewItemClickListener mOnItemClickListener = null;

    @Override
    public void onClick(View v) {
        if (mOnItemClickListener != null) {
            //注意这里使用getTag方法获取数据
            mOnItemClickListener.onItemClick(v, (DataInfo.Info) v.getTag());
        }
    }


    public  interface OnRecyclerViewItemClickListener {
        void onItemClick(View view , DataInfo.Info data);
    }
    public void setOnItemClickListener(OnRecyclerViewItemClickListener listener) {
        this.mOnItemClickListener = listener;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

        View view = LayoutInflater.from(context).inflate(R.layout.item, null);
        ViewHodler vh=new ViewHodler(view);
        LinearLayout.LayoutParams lp = new LinearLayout.
                LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        view.setLayoutParams(lp);
        view.setOnClickListener(this);
        return vh;
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        ViewHodler mHodler = (ViewHodler) holder;

        mHodler.textview.setText("this is item "+position );
        Glide.with(context)
                .load(list.get(position).url)
                .centerCrop()
                .placeholder(R.color.app_primary_color)
                .crossFade()
                .into(mHodler.imageView);
        Log.i("aaaa", list.get(position)._id);
        mHodler.itemView.setTag(list.get(position));

    }

    @Override
    public int getItemCount() {
        return list.size();
    }
    class ViewHodler extends RecyclerView.ViewHolder{

        private TextView textview;
        private ImageView imageView;
        public ViewHodler(View itemView) {
            super(itemView);
            textview= (TextView) itemView.findViewById(R.id.textview);
            imageView= (ImageView) itemView.findViewById(R.id.image);
//            itemView.setOnClickListener(new View.OnClickListener() {
//                @Override
//                public void onClick(View v) {
//                    Toast.makeText(context,"click"+getPosition(),Toast.LENGTH_SHORT).show();
//                }
//            });
        }
    }
}

Bean代码

public class DataInfo {

    public String error;
    public ArrayList results;
    public class Info{
        public String _id;
        public String url;
    }
}

代码as下载地址
http://download.csdn.net/detail/androidxiaogang/9688216