Retrofit+Rxjava+MVP

最新推荐文章于 2025-02-06 16:02:53 发布

Mike_8859

最新推荐文章于 2025-02-06 16:02:53 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/Mike_chao/article/details/79370570

本文介绍了一种使用Retrofit与RxJava相结合的方法来处理Android应用中的网络请求。通过这种方式可以更简洁地管理异步操作，并展示了具体的实现过程，包括创建工具类、定义API接口、分离业务逻辑层等。

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依赖

//retrofit
    compile 'com.squareup.retrofit2:retrofit:+'
    compile 'com.squareup.retrofit2:converter-gson:+'
    //Rxjava2
    compile 'io.reactivex.rxjava2:rxjava:+'
    compile 'io.reactivex.rxjava2:rxandroid:+'
    //让retrofit支持Rxjava2
    compile 'com.squareup.retrofit2:adapter-rxjava2:+'

refrofit工具类

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;
    }

}

ApiService接口实体类

public interface ApiService {
    @GET("http://120.27.23.105/ad/getAd")
    Flowable<Bean> get(@QueryMap Map<String,String> map);

}

MainActivity(View层)

public class MainActivity extends AppCompatActivity implements IView{

    private Presenter presenter;
    private TextView tv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        tv = findViewById(R.id.tv);

        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 bean = (Bean) o;
        List<Bean.DataBean> data = bean.getData();
        tv.setText(data.toString());
    }

    @Override
    public void onFailed(Exception e) {

    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        presenter.detatch();
    }
}

V 层接口

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

M层类

public class Model implements IModel {

    private static final String TAG = "model";
    private Presenter presenter;

    public Model(Presenter presenter) {
        this.presenter = presenter;
    }

    @Override
    public void get(String baseurl, Map<String, String> map) {
        Log.e(TAG, "model层 " + map.toString());
        Flowable<Bean> flowable = RetrofitUtils.getInstance(baseurl).getretrofit().create(ApiService.class).get(map);
        Log.e(TAG, "rxjava+retrofit请求数据 ");
        presenter.getData(flowable);
    }
}

M层接口

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

P层类

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();
            }
        }
    }

}

P层接口

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