Latest 4.0.0-rc.0
Homepage https://github.com/ReactiveX/RxSwift
License MIT
Platforms ios 8.0, osx 10.10, watchos 2.0, tvos 9.0, requires ARC
Dependencies RxSwift
Authors

Miss Electric Eel 2016 RxSwift: ReactiveX for Swift

Travis CI platforms pod Carthage compatible Swift Package Manager compatible

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/macOS 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
… install
… hack around
… interact
… compare
… find compatible
… 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.orEmpty
    .throttle(0.3, scheduler: MainScheduler.instance)
    .distinctUntilChanged()
    .flatMapLatest { query -> Observable<[Repository]> in
        if query.isEmpty {
            return .just([])
        }
        return searchGitHub(query)
            .catchErrorJustReturn([])
    }
    .observeOn(MainScheduler.instance)
… then bind the results to your tableview
searchResults
    .bind(to: tableView.rx.items(cellIdentifier: "Cell")) {
        (index, repository: Repository, cell) in
        cell.textLabel?.text = repository.name
        cell.detailTextLabel?.text = repository.url
    }
    .disposed(by: disposeBag)

Requirements

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

Tested with pod --version: 1.1.1

# Podfile
use_frameworks!

target 'YOUR_TARGET_NAME' do
    pod 'RxSwift',    '~> 3.0'
    pod 'RxCocoa',    '~> 3.0'
end

# RxTests and RxBlocking make the most sense in the context of unit/integration tests
target 'YOUR_TESTING_TARGET' do
    pod 'RxBlocking', '~> 3.0'
    pod 'RxTest',     '~> 3.0'
end

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

$ pod install

Carthage

Tested with carthage version: 0.18.1

Add this to Cartfile

github "ReactiveX/RxSwift" ~> 3.0
$ carthage update

Swift Package Manager

Tested with swift build --version: 3.0.0 (swiftpm-19)

Create a Package.swift file.

import PackageDescription

let package = Package(
    name: "RxTestProject",
    targets: [],
    dependencies: [
        .Package(url: "https://github.com/ReactiveX/RxSwift.git", majorVersion: 3)
    ]
)
$ swift build

To build or test a module with RxTest dependency, set TEST=1. (RxSwift >= 3.4.2)

$ TEST=1 swift test

Manually using git submodules

  • Add RxSwift as a submodule
$ git submodule add [email protected]: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

Latest podspec

{
    "name": "RxCocoa",
    "version": "4.0.0-rc.0",
    "summary": "RxSwift Cocoa extensions",
    "description": "* UI extensionsn* NSURL extensionsn* KVO extensions",
    "homepage": "https://github.com/ReactiveX/RxSwift",
    "license": "MIT",
    "authors": {
        "Krunoslav Zaher": "[email protected]"
    },
    "source": {
        "git": "https://github.com/ReactiveX/RxSwift.git",
        "tag": "4.0.0-rc.0"
    },
    "requires_arc": true,
    "platforms": {
        "ios": "8.0",
        "osx": "10.10",
        "watchos": "2.0",
        "tvos": "9.0"
    },
    "source_files": [
        "RxCocoa/RxCocoa.h",
        "RxCocoa/*.swift",
        "RxCocoa/Common/**/*.{swift,h,m}",
        "RxCocoa/Traits/**/*.{swift,h,m}",
        "RxCocoa/Foundation/**/*.{swift,h,m}",
        "RxCocoa/Runtime/**/*.{swift,h,m}",
        "Platform/**/*.swift"
    ],
    "exclude_files": "RxCocoa/Platform/**/*.swift",
    "ios": {
        "source_files": "RxCocoa/iOS/**/*.swift"
    },
    "osx": {
        "source_files": "RxCocoa/macOS/**/*.swift"
    },
    "watchos": {
        "source_files": "RxCocoa/iOS/**/*.swift"
    },
    "tvos": {
        "source_files": "RxCocoa/iOS/**/*.swift"
    },
    "dependencies": {
        "RxSwift": [
            "~> 4.0.0-rc.0"
        ]
    },
    "pushed_with_swift_version": "4.0"
}

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