Android_Retrofit+RxJava+MVP开发模式案例

MVP:高内聚,低耦合

一：导入依赖

compile 'io.reactivex.rxjava2:rxjava:2.1.1'compile 'io.reactivex.rxjava2:rxandroid:2.0.1'compile 'com.squareup.retrofit2:retrofit:2.0.0'compile 'com.squareup.retrofit2:converter-gson:2.0.2'//解析使用compile 'com.squareup.retrofit2:adapter-rxjava2:2.3.0'//与RxJava结合时使用

二：请求网络用Retrofit

1：接口

public interface ApiService {    //http://120.27.23.105/product/getProductCatagory?cid=1    @GET("product/getProductCatagory")    Flowable<Bean> get(@QueryMap Map<String,String> map);}

2：工具类

package com.example.rxretrofitmvp.utils;import retrofit2.Retrofit;import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;import retrofit2.converter.gson.GsonConverterFactory;/** * Created by Administrator on 2017/12/7 0007. */public class RetrofitUtils {    private static volatile RetrofitUtils instance;    private final Retrofit retrofit;    private RetrofitUtils(String baseurl) {        retrofit = new Retrofit.Builder()                .baseUrl(baseurl)                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())                .addConverterFactory(GsonConverterFactory.create())                .build();    }    public static RetrofitUtils getInstance(String baseurl) {        if (instance == null) {            synchronized (RetrofitUtils.class) {                if (instance == null) {                    instance = new RetrofitUtils(baseurl);                }            }        }        return instance;    }    public Retrofit getretrofit(){        return retrofit;    }}

三：Model层

1：接口

public interface IModel {    void get(String baseurl,Map<String,String> map);}

2：类

package com.example.rxretrofitmvp.model;import com.example.rxretrofitmvp.bean.Bean;import com.example.rxretrofitmvp.presenter.Presenter;import com.example.rxretrofitmvp.utils.ApiService;import com.example.rxretrofitmvp.utils.RetrofitUtils;import java.util.Map;import io.reactivex.Flowable;/** * Created by Administrator on 2017/12/7 0007. */public class Model implements IModel{    private Presenter presenter;    public Model(Presenter presenter) {        this.presenter = presenter;    }    @Override    public void get(String baseurl, Map<String, String> map) {        Flowable<Bean> flowable = RetrofitUtils.getInstance(baseurl).getretrofit().create(ApiService.class).get(map);        presenter.getData(flowable);    }}

四：Presenter层

1：接口

public interface BasePresenter {    void get(String baseurl,Map<String,String> map);}

2：类

package com.example.rxretrofitmvp.presenter;import com.example.rxretrofitmvp.model.Model;import com.example.rxretrofitmvp.view.IView;import java.util.Map;import io.reactivex.Flowable;import io.reactivex.android.schedulers.AndroidSchedulers;import io.reactivex.schedulers.Schedulers;import io.reactivex.subscribers.DisposableSubscriber;/** * Created by Administrator on 2017/12/7 0007. */public class Presenter implements BasePresenter{    private IView iv;    private DisposableSubscriber subscriber;    public Presenter(IView iv) {        this.iv = iv;    }    @Override    public void get(String baseurl,Map<String, String> map) {        Model model = new Model(this);        model.get(baseurl,map);    }    public void getData(Flowable flowable){        subscriber = (DisposableSubscriber) flowable.subscribeOn(Schedulers.io())                .observeOn(AndroidSchedulers.mainThread())                .subscribeWith(new DisposableSubscriber() {                    @Override                    public void onNext(Object o) {                        iv.onSuccess(o);                    }                    @Override                    public void onError(Throwable t) {                        iv.onFailed((Exception) t);                    }                    @Override                    public void onComplete() {                    }                });    }    //防止内存泄漏    public void detatch(){        if (iv != null) {            iv = null;        }        if(subscriber!=null){            if(!subscriber.isDisposed()){                subscriber.dispose();            }        }    }}

五：View层

1：接口

public interface IView {    void onSuccess(Object o);    void onFailed(Exception e);}

2：类

package com.example.rxretrofitmvp.view;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import com.example.rxretrofitmvp.R;import com.example.rxretrofitmvp.bean.Bean;import com.example.rxretrofitmvp.presenter.Presenter;import java.util.HashMap;import java.util.List;import java.util.Map;public class MainActivity extends AppCompatActivity implements IView{    private Presenter presenter;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //http://120.27.23.105/product/getProductCatagory?cid=1        presenter = new Presenter(this);        Map<String,String> map = new HashMap<>();        map.put("cid","1");        presenter.get("http://120.27.23.105/",map);    }    @Override    public void onSuccess(Object o) {        Bean b = (Bean)o;        List<Bean.DataBean> data = b.getData();        Log.i("TAG",data.size()+"");    }    @Override    public void onFailed(Exception e) {    }    @Override    protected void onDestroy() {        super.onDestroy();        presenter.detatch();    }}