我在Android中使用RxJava2的BehaviourSubject。在下面的链中,即使我subscribeOn(schedulers.background()),我也会收到一个NetworkOnMainThreadException。Android RxJava 2,subscribeOn与BehaviorSubject停留在MainThread
如果在searchRequestSubject后面使用ObserveOn(schedulers.background()),我会正确地进入后台线程。
我希望使用subscribeOn将获得所有链提供的线程?为什么它不以这种方式工作?
private BehaviorSubject<SearchRequest> searchRequestSubject = BehaviorSubject.create();
searchRequestSubject
.doOnEach(responseNotification -> Logger.d("Current Thread1: "+Thread.currentThread()))
//.observeOn(schedulers.background()) // this is the current solution but
.flatMap(searchRequest -> adSearchService.getAds(searchRequest))
.doOnEach(responseNotification -> Logger.d("Current Thread2: "+Thread.currentThread()))
.doOnNext(apiResponse -> updateResponseSubject(apiResponse))
.doOnEach(responseNotification -> Logger.d("Current Thread3: "+Thread.currentThread()))
.subscribeOn(schedulers.background()) // this one should make the whole chain to subscribe on background. but it don't. why?
.subscribe()
// Logs //
Current Thread1: Thread[main,5,main]
Current Thread2: Thread[main,5,main]
Current Thread3: Thread[main,5,main]
网络呼叫
public Observable<ApiResponse> getAds(@NonNull SearchRequest adRequest){
if (adRequest == null){
throw new IllegalStateException("Search Request should never be null");
}
return apiService.getAdsObservable(token, adRequest.pageNumber(), adRequest.resultsNumberByPage(), adRequest.presentation(),
adRequest.toLatLongQuery(), adRequest.isClosed(), adRequest.toAdTypeQuery(), adRequest.category(),
adRequest.keywords(),adRequest.radius(), adRequest.from(), adRequest.to(), adRequest.isReserved(), adRequest.adId())
.map(response -> handleResponseCode(response, adRequest.location()))
.onErrorReturn(error -> errorHandling.handleError(error));
}
private ApiResponse handleResponseCode(Response<AdResponse> response, Location location) {
if (response.isSuccessful()){
return AdSearchResponse.Response.create(response.body(), location);
} else if (response.code() == 404){
return AdSearchResponse.NotFoundError.create();
} else {
return errorHandling.handleError(response, null);
}
}
ApiService被改造2
@AutoValue
public abstract class AppSchedulers {
public abstract Scheduler UI(); // AndroidSchedulers.mainThread()
public abstract Scheduler background(); // Schedulers.io()
// [...] creator and builder
}
你有没有用'订阅试过()'但与其他兄弟节点,它需要的参数? – azizbekian
是的,我已经删除了订阅中的数据清晰度 –
正如在我的(删除)答案中所说的,您的代码适用于我。所以在我的网络请求中应该出现错误,我想 – GVillani82