RxJava+Retrofit+okhttp实践结合

来源：互联网发布：方正兰亭纤黑简体 mac 编辑：程序博客网时间：2024/06/05 09:01

1.强强联合

RxJava + Retrofit + okhttp

2.build.gradle文件中添加如下内容

compile 'com.android.support:appcompat-v7:23.4.0'compile 'io.reactivex:rxjava:1.0.10'compile 'io.reactivex:rxandroid:1.2.0'compile 'com.squareup.retrofit2:retrofit:2.0.0-beta4'compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta4'compile 'com.squareup.retrofit2:adapter-rxjava:2.0.0-beta4'compile 'com.google.code.gson:gson:2.6.2'

3. 创建各种帮助类

3.1 创建缓存帮助类  主要是方便缓存  需要选择好缓存路径和缓存文件大小

public class CacheHelper {    private Cache mCache;    //设置缓存目录    private static File cacheFile;    private static long maxSize = 8*1024*1024;    private CacheHelper(){        cacheFile = new File(MyApplication.getContext().getCacheDir().getAbsolutePath(), "mycache");    }    private static CacheHelper helper;    public static CacheHelper getInstance(){        if(helper==null){            synchronized (CacheHelper.class){                if(helper==null){                    helper = new CacheHelper();                }            }        }        return helper;    }    //返回缓存对象    public Cache getCache(){        if(mCache ==null)            mCache = new Cache(cacheFile, maxSize);        return mCache;    }}

3.2 创建OkHttp帮助类  主要是结合OkHttp  提高请求效率

public class OkHttpClientHelper {    private final Cache cache;    private OkHttpClient mClient;    private final  static  long TIMEOUT = 10000;  //超时时间    private OkHttpClientHelper(){        cache = CacheHelper.getInstance().getCache();    }    private static OkHttpClientHelper clientHelper;    public static OkHttpClientHelper getInstance(){        if(clientHelper==null){            synchronized (OkHttpClientHelper.class){                if(clientHelper==null){                    clientHelper = new OkHttpClientHelper();                }            }        }        return clientHelper;    }    //获取OKHttpClicent对象    public OkHttpClient getOkHttpClient(){        if(mClient ==null) {            mClient = new OkHttpClient.Builder()                    .connectTimeout(TIMEOUT, TimeUnit.SECONDS)                    .readTimeout(TIMEOUT, TimeUnit.SECONDS)                    .writeTimeout(TIMEOUT, TimeUnit.SECONDS)                    .cache(cache)      //设置缓存                    .build();        }        return mClient;    }}

3.3 创建Retrofit帮助类

public class RetrofitHelper {    private final OkHttpClient mClient;    private Retrofit mRetrofit;    private RetrofitHelper(){        mClient = OkHttpClientHelper.getInstance().getOkHttpClient();    }    private static RetrofitHelper helper;    //单例 保证对象唯一    public static RetrofitHelper getInstance(){        if(helper==null){            synchronized (RetrofitHelper.class){                if(helper==null){                    helper = new RetrofitHelper();                }            }        }        return helper;    }    //获取Retrofit对象    public Retrofit getRetrofit(String url){        if(mRetrofit==null) {            mRetrofit = new Retrofit.Builder()                    .baseUrl(url + "/")                    .addConverterFactory(GsonConverterFactory.create())  //添加Gson支持                    .addCallAdapterFactory(RxJavaCallAdapterFactory.create())  //添加RxJava支持                    .client(mClient)                                            //关联okhttp                    .build();        }        return mRetrofit;    }}

3.4 创建Http工具类  封装各种网络请求方式

public class HttpUtils {    private static MavinService mService;    //Post方式请求网络    public static void requestNetByPost(String url, String uid,Subscriber subscriber){        setSubscriber(getService(url).getInfoByPost(uid),subscriber);    }    //Get方式请求网络    public static void requestNetByGet(String url,String uid,Subscriber subscriber){        setSubscriber(getService(url).getInfoByGet(uid),subscriber);    }    //Post map 方式请求网络    public static void requestNetByPostMap(String url, Map<Integer,String> map,Subscriber subscriber){        setSubscriber(getService(url).getInfoByPostMap(map),subscriber);    }    //Get map方式请求网络    public static void requestNetByGetMap(String url, Map<Integer,String> map,Subscriber subscriber){        setSubscriber(getService(url).getInfoByGetMap(map),subscriber);    }    //设置缓存    public static void getCache(String url,String uid,Subscriber subscriber){        setSubscriber(getService(url).getCache(uid),subscriber);    }    //订阅事件    public static<T> void setSubscriber(Observable<T> observable, Subscriber<T> subscriber){        observable.subscribeOn(Schedulers.newThread())                .observeOn(AndroidSchedulers.mainThread())                .subscribe(subscriber);    }    //获取服务对象    private static MavinService getService(String url){        if(mService==null) {            mService = RetrofitHelper.getInstance()                    .getRetrofit(url)                    .create(MavinService.class);        }        return mService;    }}

4 创建实体类和服务类

4.1 创建实体类 不解释 用于Gson解析

public class MavinInfo {    public String ANDROID_VERSION;    public String ANDROID_VERSION_CODE;    public String IOS_VERSION;    public String IOS_VERSION_CODE;    public String msg;    public String status;    public List<BodyBean> body;    public static class BodyBean {        public String body_img;        public String title;        public String trueName;        public int uid;        @Override        public String toString() {            return "BodyBean{" +                    "body_img='" + body_img + '\'' +                    ", title='" + title + '\'' +                    ", trueName='" + trueName + '\'' +                    ", uid=" + uid +                    '}';        }    }}

4.2 创建服务类接口  Retrofit请求必须的

public interface MavinService{    String MAVIN = "json/tjMavin.htm";    String FIELD = "uid";    //设缓存有效期为1天    long CACHE_STALE_SEC = 60 * 60 * 24 * 1;    //查询缓存的Cache-Control设置，使用缓存    String CACHE_CONTROL_CACHE = "only-if-cached, max-stale=" + CACHE_STALE_SEC;    //查询网络的Cache-Control设置。不使用缓存    String CACHE_CONTROL_NETWORK = "max-age=0";    //Post请求    @FormUrlEncoded    @POST(MAVIN)    Observable<MavinInfo> getInfoByPost(@Field(FIELD) String uid);    //GET请求    @GET(MAVIN)    Observable<MavinInfo> getInfoByGet(@Query(FIELD) String uid);    //POST map    @FormUrlEncoded    @POST(MAVIN)    Observable<MavinInfo> getInfoByPostMap(@FieldMap Map<Integer,String> map);    //GET请求 map    @GET(MAVIN)    Observable<MavinInfo> getInfoByGetMap(@QueryMap Map<Integer,String> map);    //GET请求，设置缓存    @Headers("Cache-Control: public," + CACHE_CONTROL_CACHE)    @GET(MAVIN)    Observable<MavinInfo> getCache(@Query(FIELD) String uid);}

5 Activity中实现

    //Get请求       mBtn1.setOnClickListener(new View.OnClickListener() {           @Override           public void onClick(View v) {               getInfo("GET");           }       });       //Post请求       mBtn2.setOnClickListener(new View.OnClickListener() {           @Override           public void onClick(View v) {               getInfo("POST");           }       });    private void getInfo(String type) {        if(type.equals("GET")){            HttpUtils.requestNetByGet(url, "33201", new Subscriber<MavinInfo>() {                @Override                public void onCompleted() {                    Log.e("get onCompleted","读取完成");                }                @Override                public void onError(Throwable e) {                    Log.e("get onError",e.getMessage());                }                @Override                public void onNext(MavinInfo info) {                    if(info.body==null || info.body.size()<=0)                        return;                    for (MavinInfo.BodyBean bean : info.body) {                        Log.e("get onNext ",bean.toString());                    }                }            });        }else{            HttpUtils.requestNetByPost(url, "33201", new Subscriber<MavinInfo>() {                @Override                public void onCompleted() {                    Log.e("post onCompleted","读取完成");                }                @Override                public void onError(Throwable e) {                    Log.e("post onError",e.getMessage());                }                @Override                public void onNext(MavinInfo info) {                    if(info.body==null || info.body.size()<=0)                        return;                    for (MavinInfo.BodyBean bean : info.body) {                        Log.e("post onNext ",bean.toString());                    }                }            });        }    }

6 联系方式

QQ:1509815887
邮箱:zlc921022@163.com

源代码下载

2 0