使用 RxJava 调用四个 api 的组合

问题描述

我是 RxJava 的新手

I am new to RxJava

Restapi.class

/************/
    @GET("app/dashboard")
    Observable<CategoryHomeModel[]> getCategories(@HeaderMap Map<String, String> headers);

    @GET("app/wallet/balance")
    Observable<WalletBalance> getWalletBalance(@HeaderMap Map<String, String> headers);

    @GET("/app/swap/myrateswaps")
    Observable<SwapSettings> rateMySwap(@HeaderMap Map<String, String> headers);

    @GET("/app/getsettings")
    Observable<Settings> getSettings(@HeaderMap Map<String, String> headers);
    /************/

我有四个可观察对象

Observable<CategoryHomeModel[]> categoriesObservable = retrofit
            .create(Restapi.class)
            .getCategories(prepareHeaders())
            .subscribeOn(Schedulers.newThread())
            .observeOn(AndroidSchedulers.mainThread());

    Observable<WalletBalance> walletObservable = retrofit
            .create(Restapi.class)
            .getWalletBalance(prepareHeaders())
            .subscribeOn(Schedulers.newThread())
            .observeOn(AndroidSchedulers.mainThread());

    Observable<Settings> settingsObservable = retrofit
            .create(Restapi.class)
            .getSettings(prepareHeaders())
            .subscribeOn(Schedulers.newThread())
            .observeOn(AndroidSchedulers.mainThread());

    Observable<SwapSettings> ratingsObservable = retrofit
            .create(Restapi.class)
            .rateMySwap(prepareHeaders())
            .subscribeOn(Schedulers.newThread())
            .observeOn(AndroidSchedulers.mainThread());

如何将4个observable合二为一，在一个地方得到响应，同时处理所有observable的响应

---

How to combine all four observables into one and get the response in one place and handle all the response of all the observables together

我发现这可以通过合并来完成，如果是这样，如何使用合并?

I found out this can be done from Merge, If so how to use the merge ?

推荐答案

使用这种方式

List<Observable<?>> observables = Lists.newArrayList(categoriesObservable, walletObservable, settingsObservable, ratingsObservable);
            Observable.merge(observables).toList().subscribe(new Action1<List<Object>>() {
                @Override
                public void call(List<Object> objects) {
                    // success
                }
            }, new Action1<Throwable>() {
                @Override
                public void call(Throwable throwable) {
                    // error
                }
            });

或者你可以使用 mergeDelayError 代替

or you can using mergeDelayError instead

希望能帮到你

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