MVP框架+Retrofit网络请求

/----HttpConfig -----/

public class HttpConfig {

//https://www.zhaoapi.cn/product/getProducts?pscid=1

public static String base_url="https://www.zhaoapi.cn/";

}

/**
* Retrofit的工具类
*/

public class RetrofitUtil {
//单例模式
private static RetrofitUtil retrofitUtil;
private final Retrofit retrofit;

public static RetrofitUtil getInstance(){
if(retrofitUtil==null){
retrofitUtil=new RetrofitUtil();
}
return retrofitUtil;
}
//初始化Retrofit
public RetrofitUtil(){
retrofit=new Retrofit.Builder()
.baseUrl(HttpConfig.base_url)
.addConverterFactory(GsonConverterFactory.create(new Gson()))
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())
.build();
}
//指定服务
public <T> T createRequest(Class<T> clz){
T t=retrofit.create(clz);
return t;
}

}

/**

*M层请求数据

public interface IModel {
//获取数据
//void getDataFromNet(int pscid);
void getDataFromNet(Map<String,Integer> map);
}

/**
* 将restapi---java
*
* retrofit
*/

public interface MyService {

@GET("product/getProducts")
//Observable<GoodsBean> getGoodsList(@Query("pscid") int pscid);
Observable<GoodsBean> getGoodsList(@QueryMap Map<String,Integer> map);

}

/--------MyApp-------------/

public class MyApp extends Application {
@Override
public void onCreate() {

ImageLoaderConfiguration build = new ImageLoaderConfiguration.Builder(this).build();
ImageLoader.getInstance().init(build);
}

}

/-------------Model的实体类

/**
* model的具体实现
*/

public class GoodsModel implements IModel{
private final IPresenter iPresenter;

public GoodsModel(IPresenter iPresenter) {
this.iPresenter = iPresenter;
}
private static final String TAG="GoodsModel------";

@Override
public void getDataFromNet(Map<String,Integer> map) {
//网络请求
RetrofitUtil retrofitUtil=RetrofitUtil.getInstance();
MyService myService = retrofitUtil.createRequest(MyService.class);
Observable<GoodsBean> goodsList = myService.getGoodsList(map);
//执行
goodsList.subscribeOn(Schedulers.newThread())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Observer<GoodsBean>() {
@Override
public void onCompleted() {
Log.d(TAG,"完成---");
}

@Override
public void onError(Throwable e) {
Log.d(TAG,"异常---"+e.getMessage());
iPresenter.getError(e.getMessage());
}

@Override
public void onNext(GoodsBean goodsBean) {
Log.d(TAG,"----"+goodsBean);
String code = goodsBean.getCode();
if(code.equals("0")){
iPresenter.getData(goodsBean.getData());
}
}
});
}

}

/**
*Presenter的接口
*/

public interface IPresenter {
//presenter的请求数据
void showGoodsToView(IModel iModel, IMainView iMainView);
//接收从model传过来的数据
void getData(List<GoodsBean.DataBean> list);
//接收异常
void getError(String error);

}

/**
* Presenter的操作类
*/

public class GoodsPresenter implements IPresenter{
private static final String TAG="GoodsPresenter------";
private IMainView iMainView;
@Override
public void showGoodsToView(IModel iModel, IMainView iMainView) {
this.iMainView=iMainView;
//显示进度条
iMainView.showProgressBar();
//model请求数据
Map<String,Integer> map=new HashMap<>();
map.put("pscid",1);
iModel.getDataFromNet(map);
}

@Override
public void getData(List<GoodsBean.DataBean> list) {
iMainView.hideProgressBar();
Log.d(TAG,"getData:"+list);
iMainView.showGoodsList(list);
}

@Override
public void getError(String error) {
iMainView.hideProgressBar();
Log.d(TAG,"getError:"+error);
iMainView.showError(error);
}
}

/**
* View的接口
*/

public interface IMainView {
//显示商品列表
void showGoodsList(List<GoodsBean.DataBean> list);
//显示进度条
void showProgressBar();
//隐藏进度条
void hideProgressBar();
//错误提示
void showError(String error);
}

package view;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ListView;
import android.widget.ProgressBar;

import java.util.List;

import bawei.com.day9_retrofit_rxjava_mvp.R;
import model.GoodsBean;
import model.GoodsModel;
import model.MyAdapter;
import presenter.GoodsPresenter;

/**
*使用两个框架retrofit rxjava 和一个模式MVP
* Model--->耗时操作操作数据相关
* view-->界面相关
* presenter--->逻辑层
*
* retrofit是一个很好的网络加载框架
* rxjava
* 案例：
* https://www.zhaoapi.cn/product/getProducts
* 显示商品列表
*/
public class MainActivity extends AppCompatActivity implements IMainView{

private static final String TAG="MainActivity-----";
private ListView listView;
private ProgressBar progressBar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

//出书画界面
initView();
//调用presenter
GoodsPresenter goodsPresenter=new GoodsPresenter();
goodsPresenter.showGoodsToView(new GoodsModel(goodsPresenter),this);

}

private void initView() {
listView= (ListView) findViewById(R.id.listView);
progressBar= (ProgressBar) findViewById(R.id.progressBar);
}
//重写view的方法
@Override
public void showGoodsList(List<GoodsBean.DataBean> list) {
Log.d(TAG,"数据--Activity"+list);
//设置适配器展示数据
MyAdapter myAdapter=new MyAdapter(MainActivity.this,list);
listView.setAdapter(myAdapter);

}

@Override
public void showProgressBar() {
progressBar.setVisibility(View.VISIBLE);
}

@Override
public void hideProgressBar() {
progressBar.setVisibility(View.GONE);
}

@Override
public void showError(String error) {
Log.d(TAG,"错误-------"+error);
}
}

/--------------------适配器

package model;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.nostra13.universalimageloader.core.ImageLoader;

import java.util.List;

import bawei.com.day9_retrofit_rxjava_mvp.R;

public class MyAdapter extends BaseAdapter{
private Context context;
private List<GoodsBean.DataBean> list;

private ImageView imageView;
private TextView text;

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

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

@Override
public Object getItem(int position) {
return list.get(position);
}

@Override
public long getItemId(int position) {
return position;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if(convertView==null){
convertView=View.inflate(context,R.layout.item_layout,null);
holder=new ViewHolder();
holder.text=convertView.findViewById(R.id.text);
holder.imageView=convertView.findViewById(R.id.imageView);
convertView.setTag(holder);
}else{
holder= (ViewHolder) convertView.getTag();
}
holder.text.setText(list.get(position).getTitle());
ImageLoader.getInstance().displayImage(list.get(position).getImages(),holder.imageView);
return convertView;
}

public class ViewHolder {
private ImageView imageView;
private TextView text;
}

}

//Bean类

public class GoodsBean {

/**
* msg : 请求成功
* code : 0
* data : [{"bargainPrice":111.99,"createtime":"2017-10-14T21:39:05","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","itemtype":1,"pid":1,"price":118,"pscid":1,"salenum":0,"sellerid":17,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村稻香村中秋节月饼老北京月饼礼盒655g"},{"bargainPrice":111.99,"createtime":"2017-10-14T21:39:05","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","itemtype":1,"pid":2,"price":299,"pscid":1,"salenum":999,"sellerid":18,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村稻香村中秋节月饼老北京月饼礼盒655g"},{"bargainPrice":111.99,"createtime":"2017-10-03T23:53:28","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","itemtype":0,"pid":3,"price":198,"pscid":1,"salenum":1234,"sellerid":19,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村稻香村中秋节月饼老北京月饼礼盒655g"},{"bargainPrice":111.99,"createtime":"2017-10-14T21:48:08","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","itemtype":2,"pid":4,"price":999,"pscid":1,"salenum":356,"sellerid":20,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村稻香村中秋节月饼老北京月饼礼盒655g"},{"bargainPrice":111.99,"createtime":"2017-10-14T21:39:05","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","itemtype":1,"pid":5,"price":88.99,"pscid":1,"salenum":678,"sellerid":21,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村稻香村中秋节月饼老北京月饼礼盒655g"},{"bargainPrice":111.99,"createtime":"2017-10-03T23:53:28","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","itemtype":0,"pid":6,"price":7.99,"pscid":1,"salenum":234,"sellerid":22,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村稻香村中秋节月饼老北京月饼礼盒655g"},{"bargainPrice":111.99,"createtime":"2017-10-14T21:39:05","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","itemtype":1,"pid":7,"price":120.01,"pscid":1,"salenum":1266,"sellerid":23,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村稻香村中秋节月饼老北京月饼礼盒655g"},{"bargainPrice":111.99,"createtime":"2017-10-03T23:53:28","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","itemtype":0,"pid":8,"price":324,"pscid":1,"salenum":3000,"sellerid":1,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村稻香村中秋节月饼老北京月饼礼盒655g"},{"bargainPrice":111.99,"createtime":"2017-10-14T21:48:08","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","itemtype":2,"pid":9,"price":78.99,"pscid":1,"salenum":2356,"sellerid":2,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村稻香村中秋节月饼老北京月饼礼盒655g"},{"bargainPrice":111.99,"createtime":"2017-10-14T21:39:05","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","itemtype":1,"pid":10,"price":555.55,"pscid":1,"salenum":0,"sellerid":3,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村稻香村中秋节月饼老北京月饼礼盒655g"}]
* page : 1
*/

private String msg;
private String code;
private String page;
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 String getPage() {
return page;
}

public void setPage(String page) {
this.page = page;
}

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

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

public static class DataBean {
/**
* bargainPrice : 111.99
* createtime : 2017-10-14T21:39:05
* detailUrl : https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends
* images : https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg
* itemtype : 1
* pid : 1
* price : 118.0
* pscid : 1
* salenum : 0
* sellerid : 17
* subhead : 每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下
* title : 北京稻香村稻香村中秋节月饼老北京月饼礼盒655g
*/

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;
}
}

}

/---------------------------布局

activity_main里面

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent">

</RelativeLayout>

/----------item_layout展示

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">

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