简单RxJava使用

一、导包

compile 'io.reactivex.rxjava2:rxjava:2.1.3'compile 'io.reactivex.rxjava2:rxandroid:2.0.1'

二、Activity中的代码

Observable.create(new ObservableOnSubscribe<FoodInfo>() {
            @Override
            public void subscribe(ObservableEmitter<FoodInfo> e) throws Exception {
                //发射数据的逻辑.
                Response<FoodInfo> response = new Retrofit.Builder()
                        .baseUrl(baseUrl)
                        .addConverterFactory(GsonConverterFactory.create())
                        .client(client)
                        .build()
                        .create(NetInterface.class)
                        .getDataFromNet2(urlAll)
                        .execute();
                FoodInfo foodInfo = response.body();
//                List<FoodInfo.DataBean> dataBeans = foodInfo.getData();
                e.onNext(foodInfo);
            }
        }).subscribeOn(Schedulers.io()).map(new Function<FoodInfo, List<FoodInfo.DataBean>>() {
            @Override
            public List<FoodInfo.DataBean> apply(FoodInfo foodInfo) throws Exception {
                return foodInfo.getData();
            }
        }).observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Consumer<List<FoodInfo.DataBean>>() {
            @Override
            public void accept(List<FoodInfo.DataBean> dataBeans) throws Exception {
                //执行更UI的操作.
                for (FoodInfo.DataBean info : dataBeans){
                    DemonstrateUtil.showLogResult(info.toString());
                }
                adapter.setData(dataBeans);
            }
        });