MVP结合RecycleView，利用retrofit与RxJava简单请求数据

这只是一个小Demo,仅供参考，步骤如下：

先将依赖导入，需要的依赖：

 compile 'io.reactivex.rxjava2:rxandroid:2.0.1'    compile 'io.reactivex.rxjava2:rxjava:2.1.7'    compile 'com.squareup.retrofit2:adapter-rxjava2:2.3.0'    compile 'com.squareup.retrofit2:retrofit:2.0.0-beta4'    compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta4'    compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'    compile 'com.jakewharton:butterknife:7.0.0'    compile 'com.facebook.fresco:fresco:0.14.1'

简单的布一下局：

activity_main:

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

条目布局：

item_layout：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:fresco="http://schemas.android.com/apk/res-auto"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="horizontal"    >    <com.facebook.drawee.view.SimpleDraweeView        android:id="@+id/simple"        fresco:roundAsCircle="true"        android:layout_width="120dp"        android:layout_height="120dp" />    <TextView        android:id="@+id/text_view"        android:layout_width="wrap_content"        android:layout_height="wrap_content" /></LinearLayout>

接口：

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

主页面代码：

MainActivity:

import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import com.bawei.guolei.guolei2017126.adapter.IAdapter;import com.bawei.guolei.guolei2017126.presenter.MainPresenter;import com.bawei.guolei.guolei2017126.view.MainView;import butterknife.Bind;import butterknife.ButterKnife;public class MainActivity extends AppCompatActivity implements MainView{    @Bind(R.id.recycleview)    RecyclerView recycleview;    private MainPresenter presenter;    private IAdapter adapter;    private LinearLayoutManager manager;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        ButterKnife.bind(this);        presenter = new MainPresenter(this);        presenter.get();        adapter = new IAdapter(this);        manager = new LinearLayoutManager(this);        recycleview.setLayoutManager(manager);        recycleview.setAdapter(adapter);    }    @Override    public void success(Bean bean) {          adapter.addData(bean);    }    @Override    public void failure(Exception e) {    }}

适配器：adapter

IAdapter:

import android.content.Context;import android.support.v7.widget.RecyclerView;import android.view.View;import android.view.ViewGroup;import android.widget.TextView;import com.bawei.guolei.guolei2017126.Bean;import com.bawei.guolei.guolei2017126.R;import com.facebook.drawee.view.SimpleDraweeView;import java.util.ArrayList;import java.util.List;import butterknife.Bind;import butterknife.ButterKnife;/** * Created by Lenovo on 2017/12/6. */public class IAdapter extends RecyclerView.Adapter<IAdapter.ViewHolder> {    private Context context;    private List<Bean.NewslistBean> list;    public IAdapter(Context context) {        this.context=context;    }    public void addData(Bean bean) {        if (list==null){            list = new ArrayList<>();        }       list.addAll(bean.getNewslist());        notifyDataSetChanged();    }    @Override    public IAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View view = View.inflate(context, R.layout.item_layout, null);        return new ViewHolder(view);    }    @Override    public void onBindViewHolder(IAdapter.ViewHolder holder, int position) {           holder.simple.setImageURI(list.get(position).getPicUrl());        holder.textView.setText(list.get(position).getTitle());    }    @Override    public int getItemCount() {        return list==null?0:list.size();    }    static class ViewHolder extends RecyclerView.ViewHolder{        @Bind(R.id.simple)        SimpleDraweeView simple;        @Bind(R.id.text_view)        TextView textView;        public ViewHolder(View itemView) {            super(itemView);            ButterKnife.bind(this,itemView);        }    }}

数据引用接口：

IGetDataBase:

import io.reactivex.Observable;import retrofit2.http.GET;import retrofit2.http.Query;/** * Created by Lenovo on 2017/12/6. */public interface IGetDataBase {    @GET("/nba")    Observable<Bean> get(@Query("key") String key, @Query("num") String num);}

初始化：Application:

IApplication:

import android.app.Application;import com.facebook.drawee.backends.pipeline.Fresco;import retrofit2.Retrofit;import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;import retrofit2.converter.gson.GsonConverterFactory;/** * Created by Lenovo on 2017/12/6. */public class IApplication extends Application {    public static IGetDataBase iGetDataBase;    @Override    public void onCreate() {        super.onCreate();        Fresco.initialize(this);        Retrofit retrofit=new Retrofit.Builder()                .baseUrl("http://api.tianapi.com")                .addConverterFactory(GsonConverterFactory.create())                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())                .build();        iGetDataBase = retrofit.create(IGetDataBase.class);    }}

MVP三层分类：

M层：MainModel：

import com.bawei.guolei.guolei2017126.Bean;import com.bawei.guolei.guolei2017126.IApplication;import io.reactivex.android.schedulers.AndroidSchedulers;import io.reactivex.functions.Consumer;import io.reactivex.schedulers.Schedulers;/** * Created by Lenovo on 2017/12/6. */public class MainModel {    public void getData(final ModelCallBack callBack){        IApplication.iGetDataBase.get("71e58b5b2f930eaf1f937407acde08fe","10")                .subscribeOn(Schedulers.io())                .observeOn(AndroidSchedulers.mainThread())                .subscribe(new Consumer<Bean>() {                    @Override                    public void accept(Bean bean) throws Exception {                        callBack.success(bean);                    }                });    }}

M层接口：

ModelCallBack：

import com.bawei.guolei.guolei2017126.Bean;/** * Created by Lenovo on 2017/12/6. */public interface ModelCallBack {    public void success(Bean bean);    public void failure(Exception e);}

V层接口：

MainView：

import com.bawei.guolei.guolei2017126.Bean;/** * Created by Lenovo on 2017/12/6. */public interface MainView {    public void success(Bean bean);    public void failure(Exception e);}

P层：MainPresenter：

import com.bawei.guolei.guolei2017126.Bean;import com.bawei.guolei.guolei2017126.model.MainModel;import com.bawei.guolei.guolei2017126.model.ModelCallBack;import com.bawei.guolei.guolei2017126.view.MainView;/** * Created by Lenovo on 2017/12/6. */public class MainPresenter {    private MainView iView;    private MainModel mainModel;    public MainPresenter(MainView view){        this.iView=view;        this.mainModel=new MainModel();     }    public void get(){        mainModel.getData(new ModelCallBack() {            @Override            public void success(Bean bean) {                if (iView!=null){                    iView.success(bean);                }            }            @Override            public void failure(Exception e) {                if (iView!=null){                    iView.failure(e);                }            }        });    }}

效果如下：