Reactive Programming in Swift Rx is a generic abstraction of computation[1] expressed through Observable interface, which lets you broadcast and subscribe to values and other events from an Observable stream. RxSwift is the Swift-specific implementation of the Reactive Extensions[2] standard. While this version aims to stay true to the original spirit and naming conventions of Rx, this projects also aims to provide a true Swift-first API for Rx APIs.Cross platform documentation can be found on ReactiveX.io[3].Like other Rx implementation, RxSwift's intention is to enable easy composition of asynchronous operations and streams of data in the form of Observable objects and a suite of methods to transform and compose these pieces of asynchronous work.KVO observation, async operations, UI Events and other streams of data are all unified under abstraction of sequence[4]. 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... understand the structureRxSwift is as compositional as the asynchronous work it drives. The core unit is RxSwift itself, while other dependencies can be added for UI Work, testing, and more.It comprises five separate components depending on each other in the following way:none┌──────────────┐ ┌──────────────┐│ RxCocoa ├────▶ RxRelay │└───────┬──────┘ └──────┬───────┘ │ │ ┌───────▼──────────────────▼───────┐│ RxSwift │└───────▲──────────────────▲───────┘ │ │ ┌───────┴──────┐ ┌──────┴───────┐│ RxTest │ │ RxBlocking │└──────────────┘ └──────────────┘RxSwift: The core of RxSwift, providing the Rx standard as (mostly) defined by ReactiveX[5]. It has no other dependencies.RxCocoa: Provides Cocoa-specific capabilities for general iOS/macOS/watchOS & tvOS app development, such as Shared Sequences, Traits, and much more. It depends on both RxSwift and RxRelay.RxRelay: Provides PublishRelay, BehaviorRelay and ReplayRelay, three simple wrappers around Subjects[6]. It depends on RxSwift. RxTest and RxBlocking: Provides testing capabilities for Rx-based systems. It depends on RxSwift.UsageHere's an example In Action Define search for GitHub repositories ... let searchResults = searchBar.rx.text.orEmpty .throttle(.milliseconds(300), scheduler: MainScheduler.instance) .distinctUntilChanged() .flatMapLatest { query -> Observable in if query.isEmpty { return .just([]) } return searchGitHub(query) .catchAndReturn([]) } .observe(on: 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) RequirementsFor Xcode 11 and below, use RxSwift 5.x[7].InstallationRxSwift doesn't contain any external dependencies.These are currently the supported installation options:ManualOpen Rx.xcworkspace, choose RxExample and hit run. This method will build everything and run the sample appCocoaPods[8]```rubyuse_frameworks!target 'YOURTARGETNAME' do pod 'RxSwift', '6.1.0' pod 'RxCocoa', '6.1.0'endtarget 'YOURTESTINGTARGET' do pod 'RxBlocking', '6.1.0' pod 'RxTest', '6.1.0'end```Replace YOUR_TARGET_NAME and then, in the Podfile directory, type:bash$ pod installXCFrameworksEach release starting with RxSwift 6 includes *.xcframework framework binaries.Simply drag the needed framework binaries to your Frameworks, Libraries, and Embedded Content section under your target's General tab. Note: If you're using RxCocoa, be sure to also drag RxCocoaRuntime.xcframework before importing RxCocoa. Carthage[9]Add this to Cartfilegithub "ReactiveX/RxSwift" "6.1.0"bash$ carthage updateCarthage as a Static LibraryCarthage defaults to building RxSwift as a Dynamic Library. If you wish to build RxSwift as a Static Library using Carthage you may use the script below to manually modify the framework type before building with Carthage:bashcarthage update RxSwift --platform iOS --no-buildsed -i -e 's/MACH_O_TYPE = mh_dylib/MACH_O_TYPE = staticlib/g' Carthage/Checkouts/RxSwift/Rx.xcodeproj/project.pbxprojcarthage build RxSwift --platform iOSSwift Package Manager[10] Note: There is a critical cross-dependency bug affecting many projects including RxSwift in Swift Package Manager. We've filed a bug (SR-12303)[11] in early 2020 but have no answer yet. Your mileage may vary. A partial workaround can be found here[12].Create a Package.swift file.```swift// swift-tools-version:5.0import PackageDescriptionlet package = Package( name: "RxTestProject", dependencies: [ .package(url: "https://github.com/ReactiveX/RxSwift.git", .exact("6.1.0")) ], targets: [ .target(name: "RxTestProject", dependencies: ["RxSwift", "RxCocoa"]) ])```bash$ swift buildTo build or test a module with RxTest dependency, set TEST=1.bash$ TEST=1 swift testManually using git submodulesAdd RxSwift as a submodulebash$ git submodule add Diese E-Mail-Adresse ist vor Spambots geschützt! Zur Anzeige muss JavaScript eingeschaltet sein!:ReactiveX/RxSwift.gitDrag Rx.xcodeproj into Project NavigatorGo to Project > Targets > Build Phases > Link Binary With Libraries, click + and select RxSwift, RxCocoa and RxRelay targetsReferencesTo restore the repository download the bundle wget https://archive.org/download/github.com-ReactiveX-RxSwift_-_2021-03-01_07-56-46/ReactiveX-RxSwift_-_2021-03-01_07-56-46.bundle and run: git clone ReactiveX-RxSwift_-_2021-03-01_07-56-46.bundle Source: https://github.com/ReactiveX/RxSwift[13]Uploader: ReactiveX[14]Upload date: 2021-03-01 References^ generic abstraction of computation (youtu.be)^ Reactive Extensions (reactivex.io)^ ReactiveX.io (reactivex.io)^ abstraction of sequence (archive.org)^ ReactiveX (reactivex.io)^ simple wrappers around Subjects (github.com)^ use RxSwift 5.x (github.com)^ CocoaPods (guides.cocoapods.org)^ Carthage (github.com)^ Swift Package Manager (github.com)^ filed a bug (SR-12303) (bugs.swift.org)^ here (github.com)^ https://github.com/ReactiveX/RxSwift (github.com)^ ReactiveX (github.com)

weiterlesen: RSS Quelle öffnen