Rxjava+Retrofit+OkHttp的封装

1.首先导依赖

根build:

ext {

// Sdk and tools
minSdkVersion = 19
targetSdkVersion = 26
compileSdkVersion = 26
buildToolsVersion = '26.0.2'
//support版本
supportVersion = '27.1.0'
constraintLayout = '1.0.2'
junit = '4.12'
testRunner = '1.0.1'
espressoCore = '3.0.1'
interceptor = "3.11.0"
retrofit = '2.3.0'
converterGson = '2.3.0'
rxandroid = '1.2.1'
rxjava = '1.3.0'
rxbus = '1.0.6'
adapterRxjava = '2.0.2'

}

项目的build:

 implementation "com.squareup.okhttp3:logging-interceptor:$rootProject.interceptor"
    implementation "com.squareup.retrofit2:retrofit:$rootProject.retrofit"
    implementation "com.squareup.retrofit2:converter-gson:$rootProject.converterGson"
    implementation "io.reactivex:rxandroid:$rootProject.rxandroid"
    implementation "io.reactivex:rxjava:$rootProject.rxjava"
    implementation "com.hwangjr.rxbus:rxbus:$rootProject.rxbus"
    implementation "com.squareup.retrofit2:adapter-rxjava:$rootProject.adapterRxjava"
    implementation 'com.jakewharton:butterknife:8.8.1'
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'

2.创建一个接口能用注解去请求网络APIService

3.创建一个类Contasts，用来写接口地址

4.创建类RetrofitUtils封装

public class RetrofitUtils {

private MyApiService myApiService;

    private RetrofitUtils() {
        HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
        loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .readTimeout(20, TimeUnit.SECONDS)
                .connectTimeout(20, TimeUnit.SECONDS)
                .writeTimeout(20, TimeUnit.SECONDS)
                .addInterceptor(loggingInterceptor)
                .retryOnConnectionFailure(true)
                .build();

        //初始化Retrofit 并结合各种操作
        Retrofit retrofit = new Retrofit.Builder()
                //结合Gson解析
                .addConverterFactory(GsonConverterFactory.create())
                //结合Rxjava
                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
                .baseUrl(Contacts.BASE_URL)
                .client(okHttpClient)
                .build();
        //通过Retrofit创建完 这个ApiService 就可以调用方法了
        myApiService = retrofit.create(MyApiService.class);
    }

    public static RetrofitUtils getInstance() {
        return RetroHolder.retro;
    }

    private static class RetroHolder {
        private static final RetrofitUtils retro = new RetrofitUtils();
    }

    //封装get
    public RetrofitUtils get(String url, Map<String, String> map) {
        //Schedulers 线程调度器
        myApiService.get(url, map).subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(observer);
        return RetrofitUtils.getInstance();
    }
    //圈子列表
    public RetrofitUtils get2(String url, Map<String, String> map, Map<String, String> map2) {
        if (map == null) {
            map = new HashMap<>();
        }
        if (map2 == null) {
            map2 = new HashMap<>();
        }
        //Schedulers 线程调度器
        myApiService.get2(url, map,map2).subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(observer);
        return RetrofitUtils.getInstance();
    }



    //put
    public RetrofitUtils put(String url, Map<String, String> map, Map<String, String> map2) {
        if (map == null) {
            map = new HashMap<>();
        }
        if (map2 == null) {
            map2 = new HashMap<>();
        }
        myApiService.put(url, map,map2)
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(observer);
        return RetrofitUtils.getInstance();
    }


    //重写一个观察者对象
    private Observer observer = new Observer<ResponseBody>() {

        @Override
        public void onCompleted() {

        }

        //网络处理失败
        @Override
        public void onError(Throwable e) {
            if (httpListener != null) {
                Log.e("123213", "onError: ");
                httpListener.onError(e.getMessage());
            }
        }

        //网络处理成功
        @Override
        public void onNext(ResponseBody responseBody) {
            if (httpListener != null) {
                try {
                    httpListener.onSuccess(responseBody.string());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

        }
    };

    public interface HttpListener {
        void onSuccess(String jsonStr);

        void onError(String error);
    }

    private HttpListener httpListener;

    public void setHttpListener(HttpListener listener) {
        this.httpListener = listener;
    }

}