rx-java2

问题 I'm playing with the rxjava vert.x (ver. 3.8.4) WebClient. My client will call some services so, by Mockito (ver. 3.2.4) I'm testing how it should handle an error. Here is how I mock the service's response: ... JsonObject jsonResponse = new JsonObject(); HttpResponse<Buffer> httpResponse = Mockito.mock(HttpResponse.class); Mockito.when(httpResponse.statusCode()).thenReturn(500); Mockito.when(httpResponse.bodyAsJsonObject()).thenReturn(jsonResponse); HttpRequest<Buffer> httpRequest = Mockito

问题 If an observable completes, do I still have to unsubscribe / dispose (in RxJava2) the observable to remove the Observer (prevent memory leaks) or is this handled internally by RxJava once a onComplete or onError event occurs? what about other types like Single , Completable , Flowable etc. 回答1: Yes you are correct. After a stream is terminated ( onComplete / onError has been called ), subscriber unsubscribes automatically. You should be able to test these behaviors using isUnsubscribed()

问题 I've seen a lot of examples of how to turn finite things like arrays or Iterable s into Observable s, but I'm not sure I understand how to make an Observable out of something live and effectively unbounded like an event receiver. I studied the RxJava2 docs and came up with this, using an Android LocationListener as an example. Is there a simpler and/or more correct way to do this? I'm aware of the "RxBus" concept, but it seems like a way of clinging to the old event bus paradigm. final

问题 I am just discovering rxandroidble and can reliably send a single command to the BLE device after connection However I am struggling to find the best way to write a chain of commands, ie if I have a series of 3 commands that need to be sent Of course this can be done by nesting the sends, but Im sure there is a better approach!! Single command send code is rxBleMainConection.writeCharacteristic(COMS_WRITE_CHAR_UUID,bytes).toObservable() .subscribe( characteristicValue -> { // Written

问题 While subscribing to a Reactive Extensions Flowable stream, I noticed the stream halts/hangs (no more future items are emitted, and no error is returned) after 128 items have been returned. val download: Flowable<DownloadedRecord> = sensor.downloadRecords() download .doOnComplete { Log.i( "TEST", "Finished!" ) } .subscribe( { record -> Log.i( "TEST", "Got record: ${record.record.id}; left: ${record.recordsLeft}" ) }, { error -> Log.i( "TEST", "Error while downloading records: $error" ) } )

问题 I am trying to hit an API call using retrofit and receive the response from the call. I am using the Single of Rxjava to get the response. What I need to do is that a retry if the call fails. I have gone through lots of examples but it seems none could have been a help (Also because of my limited knowledge on RXjava and Kotlin). Below is the function which does the call and the retryWhen function I wrote override fun fetchMessage(southDataModel: SouthDataModel): Single<ArrayList

问题 I want to convert every object in my list to an another object. But in doing so my code stucks in converting them back to List override fun myFunction(): LiveData<MutableList<MyModel>> { return mySdk .getAllElements() // Returns Flowable<List<CustomObject>> .flatMap { Flowable.fromIterable(it) } .map {MyModel(it.name!!, it.phoneNumber!!) } .toList() //Debugger does not enter here .toFlowable() .onErrorReturn { Collections.emptyList() } .subscribeOn(Schedulers.io()) .to {

问题 Let's assume we have some Flowable that looks like: val exampleFlowable = Flowable.create<Int>({ emitter -> while (true) { Thread.sleep(TimeUnit.SECONDS.toMillis(1)) emitter.onNext(1) } }, BackpressureStrategy.LATEST) .subscribeOn(Schedulers.io()) And then I call take(1) on it and subscribe to it like so (notice, disposing of the disposable in the subscribe block): var disposable: Disposable? = null disposable = exampleFlowable.take(1) .observeOn(AndroidSchedulers.mainThread()) .subscribe({

问题 Let's assume we have some Flowable that looks like: val exampleFlowable = Flowable.create<Int>({ emitter -> while (true) { Thread.sleep(TimeUnit.SECONDS.toMillis(1)) emitter.onNext(1) } }, BackpressureStrategy.LATEST) .subscribeOn(Schedulers.io()) And then I call take(1) on it and subscribe to it like so (notice, disposing of the disposable in the subscribe block): var disposable: Disposable? = null disposable = exampleFlowable.take(1) .observeOn(AndroidSchedulers.mainThread()) .subscribe({

问题 This question already has answers here : How to resolve Duplicate files copied in APK META-INF/rxjava.properties (7 answers) Closed 2 years ago . Our project uses RxJava 1: compile 'io.reactivex:rxjava:1.1.6' There is a library we use that uses RxJava 2 internally: compile 'io.reactivex.rxjava2:rxjava:2.0.9' When I do ./gradlew assembleDebug I get this error: com.android.build.api.transform.TransformException:com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK