Retrofit+Fresco请求网络数据并展示到RecyclerView

先看效果,效果有点丑,但注重功能

第一步,导依赖

compile 'com.android.support:recyclerview-v7:26.1.0'
    compile 'com.facebook.fresco:fresco:0.9.0+'
    compile 'com.squareup.retrofit2:retrofit:2.0.0-beta4'
    compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta3'

第二步,添加网络权限

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

显示布局

activity_main

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="bwie.com.retrofit.MainActivity">

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

</RelativeLayout>

list_item

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto">
<com.facebook.drawee.view.SimpleDraweeView
    android:id="@+id/sv"
    android:layout_width="120dp"
    android:layout_height="80dp"
    app:placeholderImage="@mipmap/ic_launcher"
    />
    <TextView
        android:id="@+id/tv1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@id/sv"
        android:layout_margin="10dp"
        android:text="..............."/>
    <TextView
        android:id="@+id/tv2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@id/sv"
        android:layout_margin="10dp"
        android:layout_below="@id/tv1"
        android:textColor="#FF0000"
        android:text="..............."/>
</RelativeLayout>

Api类

public class Api {
    public final static  String A="http://120.27.23.105/";

    public final static String B = "ad/getAd";
}
Service接口
public interface Service {
    @GET(Api.B)
    Call<Datas> getDatas();
}

MyApp类用于Fresco的初始化
import com.facebook.drawee.backends.pipeline.Fresco;

/**
 * Created by BAIPEI on 2018/1/1.
 */

public class MyApp extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        Fresco.initialize(this);
    }
}
Apadper适配器类
import android.content.Context;
import android.net.Uri;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.facebook.drawee.view.SimpleDraweeView;

/**
 * Created by BAIPEI on 2018/1/1.
 */

public class Apadper extends RecyclerView.Adapter<Apadper.MyViewHolder> {
    Context context;
    Datas datas;

    public Apadper(Context context, Datas datas) {
        this.context = context;
        this.datas = datas;
    }

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

    @Override
    public void onBindViewHolder(Apadper.MyViewHolder holder, int position) {
        holder.tv1.setText(datas.getData().get(position).getTitle());
        holder.tv2.setText(datas.getData().get(position).getType()+"");
        holder.sv.setImageURI(Uri.parse(datas.getData().get(position).getIcon()));
    }

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

    public class MyViewHolder extends RecyclerView.ViewHolder{
        SimpleDraweeView sv;
        TextView tv1,tv2;

        public MyViewHolder(View itemView) {
            super(itemView);
            tv1=itemView.findViewById(R.id.tv1);
            tv2=itemView.findViewById(R.id.tv2);
            sv=itemView.findViewById(R.id.sv);
        }
    }
}

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

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.GsonConverterFactory;
import retrofit2.Response;
import retrofit2.Retrofit;

public class MainActivity extends AppCompatActivity {

    private RecyclerView mRv;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
        init();
        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl(Api.A)
                .addConverterFactory(GsonConverterFactory.create())
                .build();

        Service service = retrofit.create(Service.class);

        Call<Datas> datas = service.getDatas();

        datas.enqueue(new Callback<Datas>() {
            @Override
            public void onResponse(Call<Datas> call, Response<Datas> response) {

                Datas body = response.body();
                Toast.makeText(MainActivity.this, "白超凡", Toast.LENGTH_SHORT).show();
                Apadper apadper=new Apadper(MainActivity.this,body);
                mRv.setAdapter(apadper);
            }

            @Override
            public void onFailure(Call<Datas> call, Throwable t) {

            }
        });


    }
    private void init() {
        //LinearLayoutManager布局样式
        LinearLayoutManager manager=new LinearLayoutManager(this);
        //  GridLayoutManager布局样式
        //GridLayoutManager manager = new GridLayoutManager(this, 2);
        //设置样式
        mRv.setLayoutManager(manager);
        //设置方向   VERTICAL垂直方向
        //想要添加分割线，必须要写上这行代码
    }
    private void initView() {
        mRv = (RecyclerView) findViewById(R.id.rv);
    }
}

Datas  Bean类
import java.util.List;

/**
 * Created by BAIPEI on 2018/1/1.
 */

public class Datas {



    private String msg;
    private String code;
    private TuijianBean tuijian;
    private MiaoshaBean miaosha;
    private List<DataBean> data;

    public String getMsg() {
        return msg;
    }

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

    public String getCode() {
        return code;
    }

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

    public TuijianBean getTuijian() {
        return tuijian;
    }

    public void setTuijian(TuijianBean tuijian) {
        this.tuijian = tuijian;
    }

    public MiaoshaBean getMiaosha() {
        return miaosha;
    }

    public void setMiaosha(MiaoshaBean miaosha) {
        this.miaosha = miaosha;
    }

    public List<DataBean> getData() {
        return data;
    }

    public void setData(List<DataBean> data) {
        this.data = data;
    }

    public static class TuijianBean {


        private String name;
        private List<ListBean> list;

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public List<ListBean> getList() {
            return list;
        }

        public void setList(List<ListBean> list) {
            this.list = list;
        }

        public static class ListBean {


            private double bargainPrice;
            private String createtime;
            private String detailUrl;
            private String images;
            private int itemtype;
            private int pid;
            private double price;
            private int pscid;
            private int salenum;
            private int sellerid;
            private String subhead;
            private String title;

            public double getBargainPrice() {
                return bargainPrice;
            }

            public void setBargainPrice(double bargainPrice) {
                this.bargainPrice = bargainPrice;
            }

            public String getCreatetime() {
                return createtime;
            }

            public void setCreatetime(String createtime) {
                this.createtime = createtime;
            }

            public String getDetailUrl() {
                return detailUrl;
            }

            public void setDetailUrl(String detailUrl) {
                this.detailUrl = detailUrl;
            }

            public String getImages() {
                return images;
            }

            public void setImages(String images) {
                this.images = images;
            }

            public int getItemtype() {
                return itemtype;
            }

            public void setItemtype(int itemtype) {
                this.itemtype = itemtype;
            }

            public int getPid() {
                return pid;
            }

            public void setPid(int pid) {
                this.pid = pid;
            }

            public double getPrice() {
                return price;
            }

            public void setPrice(double price) {
                this.price = price;
            }

            public int getPscid() {
                return pscid;
            }

            public void setPscid(int pscid) {
                this.pscid = pscid;
            }

            public int getSalenum() {
                return salenum;
            }

            public void setSalenum(int salenum) {
                this.salenum = salenum;
            }

            public int getSellerid() {
                return sellerid;
            }

            public void setSellerid(int sellerid) {
                this.sellerid = sellerid;
            }

            public String getSubhead() {
                return subhead;
            }

            public void setSubhead(String subhead) {
                this.subhead = subhead;
            }

            public String getTitle() {
                return title;
            }

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

    public static class MiaoshaBean {


        private String name;
        private int time;
        private List<ListBeanX> list;

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public int getTime() {
            return time;
        }

        public void setTime(int time) {
            this.time = time;
        }

        public List<ListBeanX> getList() {
            return list;
        }

        public void setList(List<ListBeanX> list) {
            this.list = list;
        }

        public static class ListBeanX {


            private double bargainPrice;
            private String createtime;
            private String detailUrl;
            private String images;
            private int itemtype;
            private int pid;
            private double price;
            private int pscid;
            private int salenum;
            private int sellerid;
            private String subhead;
            private String title;

            public double getBargainPrice() {
                return bargainPrice;
            }

            public void setBargainPrice(double bargainPrice) {
                this.bargainPrice = bargainPrice;
            }

            public String getCreatetime() {
                return createtime;
            }

            public void setCreatetime(String createtime) {
                this.createtime = createtime;
            }

            public String getDetailUrl() {
                return detailUrl;
            }

            public void setDetailUrl(String detailUrl) {
                this.detailUrl = detailUrl;
            }

            public String getImages() {
                return images;
            }

            public void setImages(String images) {
                this.images = images;
            }

            public int getItemtype() {
                return itemtype;
            }

            public void setItemtype(int itemtype) {
                this.itemtype = itemtype;
            }

            public int getPid() {
                return pid;
            }

            public void setPid(int pid) {
                this.pid = pid;
            }

            public double getPrice() {
                return price;
            }

            public void setPrice(double price) {
                this.price = price;
            }

            public int getPscid() {
                return pscid;
            }

            public void setPscid(int pscid) {
                this.pscid = pscid;
            }

            public int getSalenum() {
                return salenum;
            }

            public void setSalenum(int salenum) {
                this.salenum = salenum;
            }

            public int getSellerid() {
                return sellerid;
            }

            public void setSellerid(int sellerid) {
                this.sellerid = sellerid;
            }

            public String getSubhead() {
                return subhead;
            }

            public void setSubhead(String subhead) {
                this.subhead = subhead;
            }

            public String getTitle() {
                return title;
            }

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

    public static class DataBean {
        /**
         * aid : 1
         * createtime : 2017-12-26T21:49:44
         * icon : https://www.zhaoapi.cn/images/quarter/ad1.png
         * productId : null
         * title : 第十三界瑞丽模特大赛
         * type : 0
         * url : http://m.mv14449315.icoc.bz/index.jsp
         */

        private int aid;
        private String createtime;
        private String icon;
        private Object productId;
        private String title;
        private int type;
        private String url;

        public int getAid() {
            return aid;
        }

        public void setAid(int aid) {
            this.aid = aid;
        }

        public String getCreatetime() {
            return createtime;
        }

        public void setCreatetime(String createtime) {
            this.createtime = createtime;
        }

        public String getIcon() {
            return icon;
        }

        public void setIcon(String icon) {
            this.icon = icon;
        }

        public Object getProductId() {
            return productId;
        }

        public void setProductId(Object productId) {
            this.productId = productId;
        }

        public String getTitle() {
            return title;
        }

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

        public int getType() {
            return type;
        }

        public void setType(int type) {
            this.type = type;
        }

        public String getUrl() {
            return url;
        }

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