rx-java

问题 I have a code flow that generates an Iterable of Observables of the same type. I then go through them all, combining them and returning the result as an Observable. At the moment I'm using zip with a FuncN, which seems horrible and I think I've missed the point somewhere. Here's an example that uses a Map, it's obviously nonsense but you get the idea. final ImmutableList.Builder<Map<String, Object>> observables = ImmutableList.builder(); for (String key: keys) { if (someTest(key)) {

问题 I'm using RxJava for Android (RxAndroid) and I subscribe to click events of a view, and do something on them as follows: subscription = ViewObservable.clicks(view, false) .map(...) .subscribe(subscriberA); The problem is whenever there is an exception, subscriberA automatically unsubscribes, leading to the next click not triggering anything. How to handle exceptions so to intercept all the click events regardless of exceptions being thrown? 回答1: Use retry method: subscription = ViewObservable

问题 This is best explained with a short example. let's say this is my source observable that I want to filter Observable.interval(1, TimeUnit.SECONDS) I use a checkbox to handle the filter state. When the box is not checked, I want to skip all values. I use RxAndroid to get an observable for the checkbox like this: RxCompoundButton.checkedChanges(checkBox) here is my code: Observable.combineLatest( RxCompoundButton.checkedChanges(checkBox) , Observable.interval(1, TimeUnit.SECONDS) , (isChecked,

问题 I am learning RxJava for a few week, i have some java code like below Code: String[] strings1 = new String[]{"a", "b", "c", "d", "e"}; Integer[] integers = {1, 2, 3, 4, 5}; String[] strings2 = new String[]{"f", "g", "h", "i"}; for (String str : strings1) { for (Integer integer : integers) { System.out.println(str + ":" + integer); if(integer == 4){ for (String str2 : strings2) { System.out.println(str2 + ":" + integer); } } } } How can i translate it to RxJava code? I trying to use

问题 I'm still learning RxJava. What is the best way to use a stream within another stream? Or is it against the principles of reactive programming? A toy example that I'm trying to write includes a TCP client and a server that sends back capitalized input. I'd like to take input from standard input, send it to the server and print out everything received by both the client and the server. The following is the expected output from the program: (User input) apple Server received: apple Client

问题 I use Retrofit to interact with a REST API and RxJava do manipulate the data I receive. In the code snippet below I make an API call and use the map operator to save the data I receive before moving on with other operations against the stream. retrofitApi.registerDevice(mDevice) .map(new Func1<Device, Device>() { @Override public Device call(Device device) { // The only purpose of the map() operator // is to save the received device. magicBox.saveDeviceId(device.getId()); return device; } })

问题 I found this. But in new ver compile 'com.squareup.retrofit2:adapter-rxjava:2.2.0' at CallAdapter it has two params CallAdapter<?,?> How to modify RxCallAdapterWrapper to implement if from CallAdapter<?,?> 回答1: Disclaimer: I'm the author of the blog post you referenced The original post was meant as a proof of concept and for RxJava 2 so it's easier for me to explain with that version too, but I'll try and cover more ground. I'm guessing you're using version 1, since you talk about adapter

问题 What are all the similarities and diferences between them, It looks like Java Parallel Stream has some of the element available in RXJava, is that right? 回答1: Rx is an API for creating and processing observable sequences. The Streams API is for processing iterable sequences. Rx sequences are push-based ; you are notified when an element is available. A Stream is pull-based ; it "asks" for items to process. They may appear similar because they both support similar operators/transforms, but the

问题 I have two observables. First - get session from internet or from cache; Observable<SessionKey> getSession = getSessionFromInternetOrCache(); Second - call to server api, using session Observable<MyResult> apiCall = getSession.flatMap(session -> { return myApi.getResult(session); }) Problem, that I have several independent components (gui). They are starting in parallel. apiCall also started in parallel. And i gets several session keys. What behavior I want: getSessions should calling once,

问题 In my Android client I receive this JSON data from a backend: [ [ 1427378400000, 553 ], [ 1427382000000, 553 ] ] Here is the routine which actually loads the data. I am using RxAndroid and Retrofit here. private void getProductLevels() { Observable<List<List<Double>>> responseObservable = mProductService.readProductLevels(); AppObservable.bindFragment(this, responseObservable) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) // TODO: Transform List<List<Double>> into