rxjava 2

RxJava simple learning (learning self-throwing things) Preface At present, RxJava is getting increasingly popular, and more people are learning RxJava. More and more projects are using RxJava, so we need to learn RxJava.What is RxJava? What is Rx? RX (Reactive Extensions) wa

Original linkIn the first article, I introduced the basics of Rxjava. In the second article, I showed you the power of the operator. But you may still not be persuaded. In this article, I'm going to show you some of the other benefits of Rxjava, which I believe is enough for you to use Rxjava.Error handlingSo far, none of us have introduced the OnComplete () and onerror () functions. These two functions are

) { Toast.makeText(getActivity(), "Something went wrong!", Toast.LENGTH_SHORT).show(); mSwipeRefreshLayout.setRefreshing(false); } @Override public void onNext(AppInfo appInfo) { mAddedApps.add(appInfo); mAdapter.addApplication(mAddedApps.size() - 1,appInfo); } });} It shows an observed sequence of emission numbers. We apply this observability Sequen

In RxJava 1.x Understanding-1, we talked about the simple use of RxJava, but that's not enough becauseThe input data---> is manipulated by listeners (feeds), or the response is processed and the new data is generated, or events are sent to listeners--listeners execute their own methods.The Rxjava can also transform the input data, generating new data (which can b

() {System.out.println ("Completed"); }@Override Public void OnError(Throwable e) { }@Override Public void OnNext(String s) {System.out.println (s); }}); Operation.onnext ("Foo"); Operation.onnext ("Bar"); operation.oncompleted (); Sleep ( -);The result of the actual output of the above code is:completedIn the above code, in addition to the scheduler, and finally added a line of code to keep the current thread dormant for 2 seconds, beca

Error handling So far, we haven't introduced the OnComplete () and onerror () functions. These functions are used to inform subscribers that the observed object will stop sending the data and why it has stopped (successful or wrong). The following code shows how to use these two functions: Observable.just ("Hello, world!") . Map (s-> potentialexception (s)) . Map (S-> anotherpotentialexception (s)) . Subscribe (New subscriber Potentialexception () and anotherpotentialexcepti

Preface Rxjava and Rxandroid (https://github.com/ReactiveX/RxAndroid) have been burning for a while, and here is a brief introduction to them. Rxjava's self-introduction on the GitHub homepage is "A library for composing asynchronous and event-based the using programs observable for th e java VM (a library that uses an observable sequence on a Java VM to compose an asynchronous, event-based program). In fact, it has become a responsive Third-party lib

Original link Rxjava is becoming increasingly popular with Android developers. The only problem is that it's not easy to get started, especially when most people use an imperative programming language. But once you figure it out, you'll find Rxjava really great.Here is just to help you understand Rxjava, the whole series has four articles, I hope you read these f

from multiple request addresses, and then in the app and then in chronological order to display the requirements, then we can use the Rxjava zip function to deal with MyService MyService = retrofit.create (Myservice.class);Observable O1 = Myservice.getnotification1 ();Observable O2 = Myservice.getnotification2 ();Observable.zip (O1,o2, this::combinotification) . Subscribeon (Schedulers.io ()) . Observeon (Androi

pipe call it 下游 .Two water pipes are connected in a certain way, so that each event is generated upstream, the event can be received downstream. Note here and the official website of the event diagram is the reverse, here the order of events sent is first 1, after 2, after 3 such order, the order of events received is also first 1, after 2, after 3 order, I think this is more in line with the thinking of o

the returned observable object.Life cycleI left the hardest in the end. How is the life cycle of the activity handled? There are two main questions:1. Continue the previous subscription after the configuration changes (such as turning the screen).For example, you use retrofit to make a rest request, and then you want to show the results in the ListView. What if the user spins the screen when the network request is made? Of course you want to continue with the request, but what?

Retrofit is a very popular network request library now.Want to use it first reference in the Gradle fileCompile ' com.squareup.retrofit2:retrofit:2.1.0 ' com.squareup.retrofit2:adapter-rxjava:2.1.0 ' compile ' com.squareup.retrofit2:converter-gson:2.0.2 'RxJava is an asynchronous responsive programming library for Java voiceCompile ' io.reactivex.rxjava2:rxjava