rx-java

问题 I have below two methods and need to invoke findDetails(name) method parallely for all names in the list. How can achieve this using RxJava? Basically I want to invoke findDetails method for each element in teh collection in diffrent threads. public List<Bean> findStudentDetails(List<String> names){ names.forEach(s->{ findDetails(s); }); } private Bean findDetails(String name){ //some io operation } 回答1: Make your methods to return Observable , then flatMap your Observables with applied

问题 I have a project running RxAndroid 1.x (everythings works). I am trying to migrate to 2.x version. My gradle file: dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) compile 'com.android.support:appcompat-v7:24.2.1' compile 'com.android.support:design:24.2.1' compile 'com.squareup.retrofit2:retrofit:2.1.0' compile 'com.squareup.retrofit2:converter-gson:2.1.0' //compile 'com.squareup.retrofit2:adapter-rxjava:2.1.0' compile 'com.squareup.okhttp3:okhttp:3.4.1' compile 'com.squareup

问题 In my app I'm trying to use RxJava to react when the user search for a new movie and retrieve movie data from a webservice. In order to do this I thought to use concatMap to concatenate the action of getting the new movie query to requesting the movie to the webservice. Doing this I get a NetworkOnMainThread exception and I don't understand the reason.. createSearchViewObservable(searchView) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .concatMap(new Func1<String,

问题 I am having trouble working out how to handle a response error with retrofit and RxAndroid. onError() gets called if there is a network error or the like but I need to be able to get the response to check if there was an authentication error. Instead what I get is a token with a null String and I can't find out why. What is the best way to go about this? This is my RxAndroid call at the moment. Client.getInstance().getService() .getToken(usernameET.getText().toString(), passwordET.getText()

问题 In order to not repeat myself, I want to re-use a Subscriber variable between two observables. How do you do accomplish this? My current code below does not work, because after the subscriber is used once, it is unsubscribed and no longer works again. If I new a Subscriber instead of reusing a variable, my subscription works. I don't want to write the same code twice, if possible. public class HomePresenter extends BasePresenter<HomeView> { ArticleRepo articleRepo; @Inject public

问题 I'm creating a simple app for connecting with the bluetooth devices using RxAndroidBle library (Cheers Guys for great work!). What I'm experiencing is sometimes when I connect to the device I receive the Gatt error with status 133. I know it may happen so what I want to do is retry everything when that error occurs. It's not a problem, I can easily do that with retryWhen() operator, however I have another requirement - the stream has to terminate after 30 seconds if the connection wasn't

问题 The case I'm into right now is quite hard to explain so I will write a simpler version just to explain the issue. I have an Observable.from() which emits a sequence of files defined by an ArrayList of files. All of these files should be uploaded to a server. For that I have an function that does the job and returns an Observable . Observable<Response> uploadFile(File file); When I run this code it gets crazy, the Observable.from() emits all of the files and they are uploaded all at ones, or

问题 I am trying to write a simple program using RxJava to generate an infinite sequence of natural numbers. So, far I have found two ways to generate sequence of numbers using Observable.timer() and Observable.interval() . I am not sure if these functions are the right way to approach this problem. I was expecting a simple function like one we have in Java 8 to generate infinite natural numbers. IntStream.iterate(1, value -> value +1).forEach(System.out::println); I tried using IntStream with

问题 I'm using Retrofit to get bookmarks from REST API: public interface BookmarkService { @GET("/bookmarks") Observable<List<Bookmark>> bookmarks(); } Now I would like to emit each item from this list with delay. I did something similar to this in Java, but onCompleted is never triggered. private Observable<Bookmark> getBookmarks() { return getBookmarkService().bookmarks() .flatMap(new Func1<List<Bookmark>, Observable<Bookmark>>() { @Override public Observable<Bookmark> call(List<Bookmark>

问题 Is there a possibility to emit item that meets condition in takeUntil operator? 回答1: Mmmm not sure if I understand your question. Something like this? @Test public void tesTakeUntil() { List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5); Observable.from(numbers) .takeUntil(number -> number > 3) .subscribe(System.out::println); } it will print 1 2 3 4 You can see more examples of Take here https://github.com/politrons/reactive/blob/master/src/test/java/rx/observables/filtering/ObservableTake