README.md

    ReactiveCocoa

    Reactive extensions to Cocoa frameworks, built on top of ReactiveSwift.

    Join the ReactiveSwift Slack community.


    Carthage compatible CocoaPods compatible SwiftPM compatible GitHub release Swift 5.1 platforms

    Looking for the Objective-C API?

    🎉 Migrating from RAC 4.x?

    🚄 Release Roadmap

    What is ReactiveSwift?

    ReactiveSwift offers composable, declarative and flexible primitives that are built around the grand concept of streams of values over time. These primitives can be used to uniformly represent common Cocoa and generic programming patterns that are fundamentally an act of observation.

    For more information about the core primitives, see ReactiveSwift.

    What is ReactiveCocoa?

    ReactiveCocoa wraps various aspects of Cocoa frameworks with the declarative ReactiveSwift primitives.

    1. UI Bindings

      UI components expose BindingTargets, which accept bindings from any kind of streams of values via the <~ operator.

      // Bind the `name` property of `person` to the text value of an `UILabel`.
      nameLabel.reactive.text <~ person.name

      Note: You'll need to import ReactiveSwift as well to make use of the <~ operator.

    2. Controls and User Interactions

      Interactive UI components expose Signals for control events and updates in the control value upon user interactions.

      A selected set of controls provide a convenience, expressive binding API for Actions.

      // Update `allowsCookies` whenever the toggle is flipped.
      preferences.allowsCookies <~ toggle.reactive.isOnValues
      
      // Compute live character counts from the continuous stream of user initiated
      // changes in the text.
      textField.reactive.continuousTextValues.map { $0.characters.count }
      
      // Trigger `commit` whenever the button is pressed.
      button.reactive.pressed = CocoaAction(viewModel.commit)
    3. Declarative Objective-C Dynamism

      Create signals that are sourced by intercepting Objective-C objects, e.g. method call interception and object deinitialization.

      // Notify after every time `viewWillAppear(_:)` is called.
      let appearing = viewController.reactive.trigger(for: #selector(UIViewController.viewWillAppear(_:)))
      
      // Observe the lifetime of `object`.
      object.reactive.lifetime.ended.observeCompleted(doCleanup)
    4. Expressive, Safe Key Path Observation

      Establish key-value observations in the form of SignalProducers and DynamicPropertys, and enjoy the inherited composability.

      // A producer that sends the current value of `keyPath`, followed by
      // subsequent changes.
      //
      // Terminate the KVO observation if the lifetime of `self` ends.
      let producer = object.reactive.producer(forKeyPath: #keyPath(key))
      	.take(during: self.reactive.lifetime)
      
      // A parameterized property that represents the supplied key path of the
      // wrapped object. It holds a weak reference to the wrapped object.
      let property = DynamicProperty<String>(object: person,
                                             keyPath: #keyPath(person.name))

    But there are still more to be discovered and introduced. Read our in-code documentations and release notes to find out more.

    Getting started

    ReactiveCocoa supports macOS 10.9+, iOS 8.0+, watchOS 2.0+, and tvOS 9.0+.

    Carthage

    If you use Carthage to manage your dependencies, simply add ReactiveCocoa to your Cartfile:

    github "ReactiveCocoa/ReactiveCocoa" ~> 10.1

    If you use Carthage to build your dependencies, make sure you have added ReactiveCocoa.framework and ReactiveSwift.framework to the "Linked Frameworks and Libraries" section of your target, and have included them in your Carthage framework copying build phase.

    CocoaPods

    If you use CocoaPods to manage your dependencies, simply add ReactiveCocoa to your Podfile:

    pod 'ReactiveCocoa', '~> 10.1'

    Swift Package Manager

    If you use Swift Package Manager, simply add ReactiveCocoa as a dependency of your package in Package.swift:

    .package(url: "https://github.com/ReactiveCocoa/ReactiveCocoa.git", branch: "master")

    Git submodule

    1. Add the ReactiveCocoa repository as a submodule of your application’s repository.
    2. Run git submodule update --init --recursive from within the ReactiveCocoa folder.
    3. Drag and drop ReactiveCocoa.xcodeproj and Carthage/Checkouts/ReactiveSwift/ReactiveSwift.xcodeproj into your application’s Xcode project or workspace.
    4. On the “General” tab of your application target’s settings, add ReactiveCocoa.framework and ReactiveSwift.framework to the “Embedded Binaries” section.
    5. If your application target does not contain Swift code at all, you should also set the EMBEDDED_CONTENT_CONTAINS_SWIFT build setting to “Yes”.

    Have a question?

    If you need any help, please visit our GitHub issues or Stack Overflow. Feel free to file an issue if you do not manage to find any solution from the archives.

    Release Roadmap

    Current Stable Release:
    GitHub release

    In Development

    Plan of Record

    ABI stability release

    ReactiveCocoa is expected to declare library ABI stability when Swift rolls out resilience support in Swift 5. Until then, ReactiveCocoa will incrementally adopt new language features.

    项目简介

    🚀 Github 镜像仓库 🚀

    源项目地址

    https://github.com/ReactiveCocoa/ReactiveCocoa

    发行版本 82

    11.2.2

    全部发行版

    贡献者 153

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    开发语言

    • Swift 98.0 %
    • Shell 0.8 %
    • Ruby 0.7 %
    • Objective-C 0.6 %