retrofit和RxJava结合

public class MainActivity extends AppCompatActivity {
    @SuppressLint("CheckResult")
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ApiClient.retrofit().create(ApiStores.class).loadDataByRetrofitRxJava("101220602")
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Observer<MainModel>() {
                    @Override
                    public void onSubscribe(Disposable d) {
                        Log.w("输出:", "连接" );
                    }

                    @Override
                    public void onNext(MainModel mainModel) {
                        Log.w("输出:", "" + mainModel.getWeatherinfo().getCity());
                        Log.d("输出:", "observer thread is : " + Thread.currentThread().getName());
                    }

                    @Override
                    public void onError(Throwable e) {
                        Toast.makeText(MainActivity.this, "登录失败", Toast.LENGTH_SHORT).show();

                    }

                    @Override
                    public void onComplete() {
                        Toast.makeText(MainActivity.this, "登录成功", Toast.LENGTH_SHORT).show();

                    }
                });
    }

    public interface ApiStores {
        //baseUrl
        String API_SERVER_URL = "http://www.weather.com.cn/";

        //加载天气
        @GET("adat/sk/{cityId}.html")
        Observable<MainModel> loadDataByRetrofitRxJava(@Path("cityId") String cityId);
    }

}

主方法

public class ApiClient {
    public static Retrofit mRetrofit;

    public static Retrofit retrofit() {
        if (mRetrofit == null) {
            OkHttpClient.Builder builder = new OkHttpClient.Builder();
            builder.readTimeout(5, TimeUnit.SECONDS);
            builder.connectTimeout(5, TimeUnit.SECONDS);

            if (BuildConfig.DEBUG) {
                // Log信息拦截器
                HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
                loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
                //设置 Debug Log 模式
                builder.addInterceptor(loggingInterceptor);
            }
            OkHttpClient okHttpClient = builder.build();
            mRetrofit = new Retrofit.Builder()
                    .baseUrl(MainActivity.ApiStores.API_SERVER_URL)
                    .addConverterFactory(GsonConverterFactory.create())
                    .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                    .client(okHttpClient)
                    .build();
        }
        return mRetrofit;
    }

}

新建类

public class MainModel {

    public static WeatherinfoBean getWeatherinfo() {
        return  new WeatherinfoBean();
    }

    public static class WeatherinfoBean {
        private String city;

        public String getCity() {
            return city;
        }

        public void setCity(String city) {
            this.city = city;
        }

    }
}

  implementation 'io.reactivex.rxjava2:rxjava:2.2.9'
        implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'
    //retrofit
    implementation 'com.squareup.retrofit2:retrofit:2.6.0'
    //Gson converter
    implementation 'com.squareup.retrofit2:converter-gson:2.6.0'
    //RxJava2 Adapter
    implementation "com.squareup.retrofit2:adapter-rxjava2:2.3.0"
    //okhttp
    implementation 'com.squareup.okhttp3:okhttp:3.12.0'
    implementation 'com.squareup.okhttp3:logging-interceptor:3.9.1'

直接把依赖复制到build.gride然后同步