XRecyclerView+Retrofit+RXjava+Fresco请求网络数据

导入的依赖

 compile 'com.facebook.fresco:fresco:0.14.1'
    compile 'com.squareup.retrofit2:retrofit:2.3.0'
    compile 'com.squareup.retrofit2:adapter-rxjava:2.0.1'
    compile 'io.reactivex:rxandroid:1.1.0'
    compile 'com.squareup.okhttp3:okhttp:3.0.0'
    compile 'com.squareup.okio:okio:1.5.0'
    compile 'com.squareup.okhttp3:logging-interceptor:3.4.1'
    compile 'com.squareup.retrofit2:converter-gson:2.3.0'
    compile 'com.jcodecraeer:xrecyclerview:1.3.2'



 <uses-permission android:name="android.permission.INTERNET"></uses-permission>

activity_item布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:fresco="http://schemas.android.com/apk/res-auto">>


    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="100dp">

        <com.facebook.drawee.view.SimpleDraweeView
            android:id="@+id/myface"
            android:layout_width="100dp"
            android:layout_height="100dp"
            fresco:actualImageScaleType="focusCrop"
            fresco:placeholderImageScaleType="fitCenter"
            fresco:progressBarImageScaleType="centerInside"
            fresco:progressBarAutoRotateInterval="5000"
            fresco:failureImageScaleType="centerInside"
            fresco:retryImageScaleType="centerCrop"
            fresco:fadeDuration="5000"
            fresco:backgroundImage="@android:color/holo_orange_light"
            fresco:roundAsCircle="true"
            >

        </com.facebook.drawee.view.SimpleDraweeView>

        <TextView
            android:id="@+id/mytext"
            android:layout_width="match_parent"
            android:layout_height="100dp"
            android:gravity="center"
            android:text="世界欢迎你 "/>
    </LinearLayout>

</RelativeLayout>

第一个MainActivity

package com.bawie.www.rikao1206;

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

import com.bawie.www.rikao1206.adapter.MyAdapter;
import com.bawie.www.rikao1206.bean.NewsBean;
import com.bawie.www.rikao1206.presenter.ShowPresenter;
import com.bawie.www.rikao1206.presenter.ShowPresenterImpl;
import com.bawie.www.rikao1206.view.ShowView;
import com.jcodecraeer.xrecyclerview.XRecyclerView;

import java.util.List;

public class MainActivity extends AppCompatActivity  implements ShowView{
    private XRecyclerView xRecyclerView;
    private List<NewsBean.NewslistBean> list;
    private LinearLayoutManager manager;
    private MyAdapter adapter;
    private ShowPresenter presenter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        xRecyclerView = (XRecyclerView) findViewById(R.id.recycler);
        manager = new LinearLayoutManager(this);
        manager.setOrientation(LinearLayoutManager.VERTICAL);
        xRecyclerView.setLayoutManager(manager);
        //p关联v
        presenter = new ShowPresenterImpl(this);
        //p关联m 做网络请求
        presenter.relevance();

        xRecyclerView.setLoadingListener(new XRecyclerView.LoadingListener() {
            @Override
            public void onRefresh() {
                adapter.notifyDataSetChanged();
                xRecyclerView.refreshComplete();//刷新数据
            }

            @Override
            public void onLoadMore() {
                //  addData();
               // xRecyclerView.loadMoreComplete();//加载数据
            }
        });


    }

    @Override
    public void showData(NewsBean news) {
        list = news.getNewslist();
        adapter = new MyAdapter(MainActivity.this, list);
        xRecyclerView.setAdapter(adapter);
    }

   /* private void addData() {
        for (int i = 0; i < 20; i++) {
            Integer r = Integer.valueOf((int) (Math.random() * 100));
            list.add(r, new NewsBean.NewslistBean());
        }
        adapter.notifyDataSetChanged();


    }*/
}

MyApp类里

package com.bawie.www.rikao1206;

import android.app.Application;

import com.facebook.drawee.backends.pipeline.Fresco;

/**
 */

public class MyApp extends Application {

    @Override
    public void onCreate() {
        super.onCreate();
        Fresco.initialize(this);
    }
}

utils包里的RetrofitUtils

package com.bawie.www.rikao1206.utils;

import android.util.Log;

import java.util.concurrent.TimeUnit;

import okhttp3.OkHttpClient;
import okhttp3.logging.HttpLoggingInterceptor;
import retrofit2.Retrofit;
import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
import retrofit2.converter.gson.GsonConverterFactory;

/**
 * Created by 杨文倩 on 2017/12/6.
 */

public class RetrofitUtils {

    private static RetrofitUtils retrofitUtils;

    private RetrofitUtils() {

    }

    public static RetrofitUtils getInstance() {
        if (retrofitUtils == null) {
            synchronized (RetrofitUtils.class) {
                if (retrofitUtils == null) {
                    retrofitUtils = new RetrofitUtils();
                }
            }
        }
        return retrofitUtils;
    }

    private static Retrofit retrofit;

    public static synchronized Retrofit getRetrofit(String url) {
        HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {
            @Override
            public void log(String message) {
                Log.i("xxx", message);
            }
        });
        httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);

        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .addInterceptor(httpLoggingInterceptor)
                .connectTimeout(500, TimeUnit.SECONDS)
                .readTimeout(500, TimeUnit.SECONDS)
                .retryOnConnectionFailure(false)
                .build();
        if (retrofit == null) {
            retrofit = new Retrofit.Builder().baseUrl(url)
                    .client(okHttpClient)
                    .addConverterFactory(GsonConverterFactory.create())
                    .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
                    .build();
        }
        return retrofit;
    }

    public <T> T getApiService(String url, Class<T> cl) {
        Retrofit retrofit = getRetrofit(url);//得到retrofit

        return retrofit.create(cl);//返回的就是网络接口对象

    }
}

presenter层定义一个接口ShowPresenter

public interface ShowPresenter {
    void relevance();
}

presenter层定义一个ShowPresenterImpl类

package com.bawie.www.rikao1206.presenter;


import com.bawie.www.rikao1206.OnFinishListener;
import com.bawie.www.rikao1206.bean.NewsBean;
import com.bawie.www.rikao1206.model.ShowModel;
import com.bawie.www.rikao1206.model.ShowModelImpl;
import com.bawie.www.rikao1206.view.ShowView;

public class ShowPresenterImpl implements ShowPresenter,OnFinishListener {
    ShowView showView;
    private final ShowModel showModel;
    //初始化
    public ShowPresenterImpl(ShowView showView){
        this.showView  = showView;
        //多态
        showModel = new ShowModelImpl();


    }

    @Override
    public void relevance() {
        //p跟m关联
        showModel.getData(this);
    }

    @Override
    public void success(NewsBean news) {
        showView.showData(news);
    }
}

在Model层定义一个接口ShowModel

package com.bawie.www.rikao1206.model;

import com.bawie.www.rikao1206.OnFinishListener;

/**
 * Created by 杨文倩 on 2017/12/6.
 */

public interface ShowModel {
    void getData(OnFinishListener listener);
}

在model层定义一个类ShowModelImpl

package com.bawie.www.rikao1206.model;


import com.bawie.www.rikao1206.OnFinishListener;
import com.bawie.www.rikao1206.api.Api;
import com.bawie.www.rikao1206.api.ApiService;
import com.bawie.www.rikao1206.bean.NewsBean;
import com.bawie.www.rikao1206.utils.RetrofitUtils;

import rx.Observable;
import rx.Observer;
import rx.android.schedulers.AndroidSchedulers;
import rx.schedulers.Schedulers;


public class ShowModelImpl implements ShowModel {
    @Override
    public void getData(final OnFinishListener listener) {
        ApiService apiService = RetrofitUtils.getInstance().getApiService(Api.api_data, ApiService.class);
        Observable<NewsBean> observable = apiService.getData();
        observable.subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Observer<NewsBean>() {
                    @Override
                    public void onCompleted() {
                    }

                    @Override
                    public void onError(Throwable e) {

                    }
                    @Override
                    public void onNext(NewsBean bean) {
                        listener.success(bean);
                    }
                });
    }
    }

在bean包里定义一个NewsBean

package com.bawie.www.rikao1206.bean;

import java.util.List;

/**
 * Created by 杨文倩 on 2017/12/6.
 */

public class NewsBean {


    /**
     * code : 200
     * msg : success
     * newslist : [{"ctime":"2016-12-04 13:00","title":"格林：理解科尔吸食大麻 不过我从没吸过","description":"NBA新闻","picUrl":"http://www.51tyw.com/uploads/allimg/161204/1-161204120131.jpg","url":"http://www.51tyw.com/nba/2421.html"},{"ctime":"2016-12-04 00:00","title":"三分纪录延续！火箭队连续19场比赛命中10+三分球","description":"NBA新闻","picUrl":"http://www.51tyw.com/uploads/allimg/161203/1-161203233J3.jpg","url":"http://www.51tyw.com/nba/2417.html"},{"ctime":"2016-12-04 00:00","title":"詹姆斯谈三连败：是时候紧起来了 必须打得男人点","description":"NBA新闻","picUrl":"http://www.51tyw.com/uploads/allimg/161203/1-161203234010.jpg","url":"http://www.51tyw.com/nba/2418.html"},{"ctime":"2016-12-03 12:00","title":"骑士输赢都靠三分？那还要詹姆斯做什么？","description":"NBA新闻","picUrl":"http://www.51tyw.com/uploads/allimg/161203/1-161203104344.jpg","url":"http://www.51tyw.com/nba/2407.html"},{"ctime":"2016-12-03 00:00","title":"公牛vs骑士直播看点：詹伟兄弟对决","description":"NBA新闻","picUrl":"http://www.51tyw.com/uploads/allimg/161202/1-161202221205.jpg","url":"http://www.51tyw.com/nba/2395.html"},{"ctime":"2016-12-02 22:00","title":"火箭和勇士联手创NBA三分纪录","description":"NBA新闻","picUrl":"http://www.51tyw.com/uploads/allimg/161202/1-161202214212.jpg","url":"http://www.51tyw.com/nba/2392.html"},{"ctime":"2016-12-02 22:00","title":"巴克利：勇士打得像女式篮球，太软了！","description":"NBA新闻","picUrl":"http://www.51tyw.com/uploads/allimg/161202/1-161202215032.jpg","url":"http://www.51tyw.com/nba/2394.html"},{"ctime":"2016-12-02 20:00","title":"詹姆斯完成月最佳球员4连霸的壮举！","description":"NBA新闻","picUrl":"http://www.51tyw.com/uploads/allimg/161202/1-1612021PI0.jpg","url":"http://www.51tyw.com/nba/2388.html"},{"ctime":"2016-12-01 00:00","title":"威少再下三双战书！詹皇会不会先认怂？","description":"NBA新闻","picUrl":"http://www.51tyw.com/uploads/allimg/161128/1-16112Q13251.jpg","url":"http://www.51tyw.com/nba/2374.html"},{"ctime":"2016-12-01 00:00","title":"骑士这样的防守想夺冠？也许卫冕只是空谈！","description":"NBA新闻","picUrl":"http://www.51tyw.com/uploads/allimg/161130/1-161130222229.jpg","url":"http://www.51tyw.com/nba/2375.html"}]
     */

    private int code;
    private String msg;
    private List<NewslistBean> newslist;

    public int getCode() {
        return code;
    }

    public void setCode(int code) {
        this.code = code;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public List<NewslistBean> getNewslist() {
        return newslist;
    }

    public void setNewslist(List<NewslistBean> newslist) {
        this.newslist = newslist;
    }

    public static class NewslistBean {
        /**
         * ctime : 2016-12-04 13:00
         * title : 格林：理解科尔吸食大麻 不过我从没吸过
         * description : NBA新闻
         * picUrl : http://www.51tyw.com/uploads/allimg/161204/1-161204120131.jpg
         * url : http://www.51tyw.com/nba/2421.html
         */

        private String ctime;
        private String title;
        private String description;
        private String picUrl;
        private String url;

        public String getCtime() {
            return ctime;
        }

        public void setCtime(String ctime) {
            this.ctime = ctime;
        }

        public String getTitle() {
            return title;
        }

        public void setTitle(String title) {
            this.title = title;
        }

        public String getDescription() {
            return description;
        }

        public void setDescription(String description) {
            this.description = description;
        }

        public String getPicUrl() {
            return picUrl;
        }

        public void setPicUrl(String picUrl) {
            this.picUrl = picUrl;
        }

        public String getUrl() {
            return url;
        }

        public void setUrl(String url) {
            this.url = url;
        }
    }
}

在api包里定义一个ApiService接口

package com.bawie.www.rikao1206.api;

import com.bawie.www.rikao1206.bean.NewsBean;

import retrofit2.http.GET;
import rx.Observable;

/**
 * Created by 杨文倩 on 2017/12/6.
 */

public interface ApiService {

    @GET("nba/?key=71e58b5b2f930eaf1f937407acde08fe&num=10")
    Observable<NewsBean> getData();
}

在api包里定义一个Api的类

package com.bawie.www.rikao1206.api;

/**
 * Created by 杨文倩 on 2017/12/6.
 */

public class Api {

    //http://api.tianapi.com/nba/?key=71e58b5b2f930eaf1f937407acde08fe&num=10
    public  static  final String api_data ="http://api.tianapi.com/";
}

在adapter包里定义MyAdapter类

package com.bawie.www.rikao1206.adapter;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.bawie.www.rikao1206.R;
import com.bawie.www.rikao1206.bean.NewsBean;
import com.facebook.drawee.backends.pipeline.Fresco;
import com.facebook.drawee.interfaces.DraweeController;
import com.facebook.drawee.view.SimpleDraweeView;
import com.jcodecraeer.xrecyclerview.XRecyclerView;

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

/**
 * Created by 杨文倩 on 2017/12/6.
 */

public class MyAdapter extends XRecyclerView.Adapter<MyAdapter.ViewHolder> {
    private Context context;
    private List<NewsBean.NewslistBean> list;

    public MyAdapter(Context context, List<NewsBean.NewslistBean> list) {
        this.context = context;
        this.list = list;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = View.inflate(context, R.layout.activity_item, null);
        ViewHolder holder = new ViewHolder(view);
        return holder;
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        // Glide.with(context).load(list.get(position).getGoods_img()).into(holder.imgLogo);
        holder.txtName.setText(list.get(position).getTitle());
//        DraweeController controller = Fresco.newDraweeControllerBuilder()
//                .setUri(list.get(position).getPicUrl())
//                .setAutoPlayAnimations(true)
//                .build();
//        holder.imgLogo.setController(controller);
        holder.imgLogo.setImageURI(list.get(position).getPicUrl());
    }

    @Override
    public int getItemCount() {
        return list.size();
    }
    public void setData(NewsBean bean){

        if(this.list == null){
            this.list = new ArrayList<>();
        }
        this.list.addAll(bean.getNewslist());
        notifyDataSetChanged();

    }

    class ViewHolder extends RecyclerView.ViewHolder{
        private SimpleDraweeView imgLogo;
        private TextView txtName;

        public ViewHolder(View itemView) {
            super(itemView);

            imgLogo = (SimpleDraweeView) itemView.findViewById(R.id.myface);
            txtName = (TextView) itemView.findViewById(R.id.mytext);
        }
    }

}

定义一个OnFinishListener接口

package com.bawie.www.rikao1206;

import com.bawie.www.rikao1206.bean.NewsBean;

/**
 * Created by 杨文倩 on 2017/12/6.
 */

public interface OnFinishListener {
    void success(NewsBean bean);
}

view层理ShowView类

package com.bawie.www.rikao1206.view;

import com.bawie.www.rikao1206.bean.NewsBean;

/**
 * Created by 杨文倩 on 2017/12/6.
 */

public interface ShowView {

    void showData(NewsBean news);
}

 接口

http://api.tianapi.com/nba/?key=71e58b5b2f930eaf1f937407acde08fe&num=10