RxSwift: ReactiveX for Swift

Xcode 8.0 beta Swift 3.0 Preview required

About Rx

Rx is a generic abstraction of computation expressed through Observable<Element> interface.

This is a Swift version of Rx.

It tries to port as many concepts from the original version as possible, but some concepts were adapted for more pleasant and performant integration with iOS/OSX environment.

Cross platform documentation can be found on ReactiveX.io.

Like the original Rx, its intention is to enable easy composition of asynchronous operations and event/data streams.

KVO observing, async operations and streams are all unified under abstraction of sequence. This is the reason why Rx is so simple, elegant and powerful.

I came here because I want to ...

... understand

why use rx?
the basics, getting started with RxSwift
units - what is Driver, ControlProperty, and Variable ... and why do they exist?
testing
tips and common errors
debugging
the math behind Rx
what are hot and cold observable sequences?
what does the the public API look like?

... install

Integrate RxSwift/RxCocoa with my app. Installation Guide

... hack around

with the example app. Running Example App
with operators in playgrounds. Playgrounds

... interact

All of this is great, but it would be nice to talk with other people using RxSwift and exchange experiences.
Join Slack Channel
Report a problem using the library. Open an Issue With Bug Template
Request a new feature. Open an Issue With Feature Request Template

... compare

with other libraries.

... find compatible

libraries from RxSwiftCommunity.
Pods using RxSwift.

... see the broader vision

Does this exist for Android? RxJava
Where is all of this going, what is the future, what about reactive architectures, how do you design entire apps this way? Cycle.js - this is javascript, but RxJS is javascript version of Rx.

Usage

Here's an example	In Action
Define search for GitHub repositories ...
let searchResults = searchBar.rx_text .throttle(0.3, scheduler: MainScheduler.instance) .distinctUntilChanged() .flatMapLatest { query -> Observable<[Repository]> in if query.isEmpty { return Observable.just([]) } `return searchGitHub(query) .catchErrorJustReturn([]) } .observeOn(MainScheduler.instance)</pre></div></td>`
... then bind the results to your tableview
searchResults .bindTo(tableView.rx_itemsWithCellIdentifier("Cell")) { (index, repository: Repository, cell) in cell.textLabel?.text = repository.name cell.detailTextLabel?.text = repository.url } .addDisposableTo(disposeBag)

Installation

Rx doesn't contain any external dependencies.

These are currently the supported options:

Manual

Open Rx.xcworkspace, choose RxExample and hit run. This method will build everything and run the sample app

CocoaPods

⚠️ IMPORTANT! For tvOS support, CocoaPods 0.39 is required. ⚠️

# Podfile
use_frameworks!

target 'YOUR_TARGET_NAME' do
    pod 'RxSwift',    '~> 2.0'
    pod 'RxCocoa',    '~> 2.0'
end

# RxTests and RxBlocking make the most sense in the context of unit/integration tests
target 'YOUR_TESTING_TARGET' do
    pod 'RxBlocking', '~> 2.0'
    pod 'RxTests',    '~> 2.0'
end

Replace YOUR_TARGET_NAME and then, in the Podfile directory, type:

$ pod install

Carthage

Xcode 7.1 required

Add this to Cartfile

github "ReactiveX/RxSwift" ~> 2.0

$ carthage update

Manually using git submodules

Add RxSwift as a submodule

$ git submodule add git@github.com:ReactiveX/RxSwift.git

Drag Rx.xcodeproj into Project Navigator
Go to Project > Targets > Build Phases > Link Binary With Libraries, click + and select RxSwift-[Platform] and RxCocoa-[Platform] targets

References

License

Succete/RxSwift

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