rxjava+retrofit

rxjava+retrofit
1.添加依赖.
//Retrofit2的依赖
implementation ‘com.squareup.retrofit2:converter-gson:2.0.0-beta4’
compile ‘com.squareup.retrofit2:converter-gson:2.1.0’
//Rxjava依赖
implementation ‘io.reactivex.rxjava2:rxjava:2.1.16’
implementation ‘io.reactivex.rxjava2:rxandroid:2.0.2’
implementation ‘com.squareup.retrofit2:adapter-rxjava2:2.4.0’

2.新建callback接口
import retrofit2.Call;

ic interface CallBack {
void onSuccess(String result);
void onFailer(Call call,Throwable t);
}

import java.util.Map;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
import retrofit2.Retrofit;
import retrofit2.converter.scalars.ScalarsConverterFactory;

public class HttpManager {

public void getMethod(String url, final CallBack callback){
    Retrofit retrofit = new Retrofit.Builder().baseUrl("http://api.tianapi.com/nba/")
            .addConverterFactory(ScalarsConverterFactory.create())
            .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
            .build();

    ProjectApi projectApi = retrofit.create(ProjectApi.class);
    Call<String> call = projectApi.getMethod(url);
    call.enqueue(new Callback<String>() {
        @Override
        public void onResponse(Call<String> call, Response<String> response) {
            String body = response.body();
            callback.onSuccess(body);
        }

        @Override
        public void onFailure(Call<String> call, Throwable t) {
            callback.onFailer(call,t);
        }
    });
}

public void postMethod(String baseUrl, String url, Map<String,String> map, final CallBack callback){
    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl(baseUrl)
            .addConverterFactory(ScalarsConverterFactory.create())
            .build();
    ProjectApi projectApi = retrofit.create(ProjectApi.class);
    Call<String> call = projectApi.postMethod(url, map);
    call.enqueue(new Callback<String>() {
        @Override
        public void onResponse(Call<String> call, Response<String> response) {
            String body = response.body();
            callback.onSuccess(body);
        }

        @Override
        public void onFailure(Call<String> call, Throwable t) {
            callback.onFailer(call,t);
        }
    });
}

}

import java.util.Map;

import retrofit2.Call;
import retrofit2.http.FieldMap;
import retrofit2.http.GET;
import retrofit2.http.POST;
import retrofit2.http.Url;

public interface ProjectApi {
@GET
Call getMethod(@Url String url);

@POST
Call<String> postMethod(@Url String url, @FieldMap Map<String,String> map);

}

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public interface UrlUtil {
public String PATH = “http://api.tianapi.com/nba/”;
public String AA = “?key=71e58b5b2f930eaf1f937407acde08fe&num=10”;
}

public interface RecycleViewV {
void onSuccess(String result);
void onFailer(Call call, Throwable t);
}

public class RecyclePresenter {

private RecycleViewV mRecyclerView;
private HttpManager mHttpManager;

public RecyclePresenter(RecycleViewV recyclerView) {
    mRecyclerView = recyclerView;
    mHttpManager = new HttpManager();
}

public void urlUtil(String url, Map<String,String> map){
    mHttpManager.getMethod(url, new CallBack() {
        @Override
        public void onSuccess(String result) {
            mRecyclerView.onSuccess(result);
        }

        @Override
        public void onFailer(Call<String> call, Throwable t) {
            mRecyclerView.onFailer(call,t);
        }
    });
}

}

public class MainActivity extends AppCompatActivity implements RecycleViewV {

private RecyclerView recycle;
private RecyclePresenter mRecyclePresenter;
private List<User.NewslistBean> list;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    recycle = findViewById(R.id.recycle);
    Map<String,String> map = new HashMap<>();
    mRecyclePresenter = new RecyclePresenter(this);
    mRecyclePresenter.urlUtil(UrlUtil.PATH+UrlUtil.AA,map);
}

@Override
public void onSuccess(String result) {
    Gson gson = new Gson();
    User user = gson.fromJson(result, User.class);
    list = user.getNewslist();
    recycle.setLayoutManager(new LinearLayoutManager(this));
    RecycleAdapter adapter = new RecycleAdapter(getApplicationContext(),list);
    recycle.setAdapter(adapter);
}

@Override
public void onFailer(Call<String> call, Throwable t) {

}

}