Swiftpack.co - Package - AckeeCZ/ACKReactiveExtensions


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ACKReactiveExtensions is set of useful extensions for ReactiveCocoa you could use in your apps.

Currently we have extensions for

If you'd love to have more extensions available just open an issue or even better create a pull request!


ACKReactiveExtensions is available through CocoaPods. Simply add the following line to your Podfile:

pod "ACKReactiveExtensions"


  • Xcode 8.x
  • Swift 3.x
  • iOS 8.3 and newer

For Swift 2.x compatible version use ACKReactiveExtensions in 1.2.x version.


By using pod "ACKReactiveExtensions" you will get only general and UIKit extensions but there are also subspecs you can like/need.

pod 'ACKReactiveExtensions/AlamofireImage'
pod 'ACKReactiveExtensions/Argo'
pod 'ACKReactiveExtensions/Marshal'
pod 'ACKReactiveExtensions/Reachability'
pod 'ACKReactiveExtensions/Realm'
pod 'ACKReactiveExtensions/SDWebImage'
pod 'ACKReactiveExtensions/WebKit'

These subspecs mostly require aditional dependencies (as Argo or Reachability) and you could not need it for your project. That's why it is separated to subspecs.


Usage is really simple, ACKReactiveExtensions contains just more extensions for ReactiveSwift's Reactive struct so it can be used on more objects.

let imageURL: Property<URL> = ...
let imageView = UIImageView()

imageView.reactive.imageURL <~ imageURL

Mapping extensions

ACKReactiveExtensions contains reactive mapping extensions for following libraries. See their page for more information.

Mapping configuration

In general we are against mapping objects on main thread (and you should be too), but you know, you only live once so we still give you the opportunity to do so. By default our mapping extensions allow this behavior but if you want to restrict that, you can do that by setting a configuration variable.

ACKReactiveExtensionsConfiguration.allowMappingOnMainThread = false

From now on the mapping extensions will expect to be called on background thread, but don't worry, we use asserts so your production users are safe from crashing if somehow things don't go as good as expected.

UITextField/UITextView two way binding

ACKReactiveExtensions contains special <~> two way binding operator which will create binding between MutableProperty and your UITextField/UITextView.

Until now all those bindings looked like this

let textProperty: MutableProperty<String?> ...
let textField: UITextField ...

textField.reactive.text <~ textProperty
textProperty <~ textField.reactive.continousTextValues

From now on you can use the <~> operator

textProperty <~> textField

The <~> operator is commutative so the order of operands doesn't matter.


Ackee team


ACKategories is available under the MIT license. See the LICENSE file for more info.


Stars: 15


Used By

Total: 0


5.2.0 - 2020-09-08 13:01:01

SwiftPM & Realm 5 - 2020-07-17 12:01:22

  • add SwiftPM support (#47, kudos to @olejnjak)
  • update Realm dependency to ~> 5.0 (#47, kudos to @olejnjak)

- 2019-06-26 10:41:44

  • fix RealmCollection bug in case when Realm data is modified before it sends initial change notification (#43, kudos to @olejnjak)

- 2019-05-02 12:47:12

  • update ReactiveSwift & ReactiveCocoa, use native Result (#41, kudos to @olejnjak)
  • deprecate extensions which are available using Swift typed keypaths #40 (#42, kudos to @olejnjak)

Deprecated extensions will be removed in next release

Swift 5 & Xcode 10.2 - 2019-03-28 15:35:25

  • migrate to Xcode 10.2 and Swift 5 (#39, kudos to @olejnjak)

Dependencies fix - 2019-01-11 14:26:32

  • fix dependencies to keep library compileable

App extension API only - 2018-10-15 17:53:28


  • allow app extension API only (#36, kudos to @olejnjak)

Swift 4.2 & Xcode 10 - 2018-09-20 07:20:43


This is the first version that requires Xcode 10 and Swift 4.2+.

- 2018-09-19 20:32:49


  • add tableView.reactive.tableFooterView (#28, kudos to @olejnjak)
  • add caLayer.reactive.cornerRadius (#30, kudos to @olejnjak)
  • add imageView.reactive.imageSignal (#30, kudos to @olejnjak)
  • add view.reactive.frame (#30, kudos to @olejnjak)
  • add view.reactive.bounds (#30, kudos to @olejnjak)

NOTE: This is the last release that supports Xcode 9.x

Fix ambiguities - 2018-08-29 11:55:56


  • fix UINavigationItemExtensions ambiguity with new extensions from ReactiveCocoa (#29, kudos to @tommhol)

3.4.2 - 2018-07-31 11:38:01


  • remove signal.merge(with:) as it is ambigous in ReactiveSwift 4.0 (#26, kudos to @olejnjak)
  • remove producer.merge(with:) as it is amibous in ReactiveSwift 4.0 (#27, kudos to @olejnjak

3.4.0 - 2018-07-30 23:41:50


  • update ReactiveCocoa to 8.0 (kudos to @olejnjak)

3.3.1 - 2018-07-20 13:03:25


  • fix action.run() so now it is disposed when outer producer is disposed (#25, kudos to @olejnjak)


  • add missing subproject to README (#24, kudos to @LukasHromadnik)

3.3.0 - 2018-07-05 00:32:36


  • new extensions for AlamofireImage (#19, kudos to @olejnjak)
  • new extensions for UITableView (#18, kudos to @olejnjak)
  • new extensions for UIView (#18, #21, kudos to @olejnjak)
  • new extensions for UIViewController (#21, kudos to @olejnjak)
  • new helper for merging SignalProducers and Signals (#20 kudos to @josefdolezal)


  • fix Action.run() extension so it now reflects interrupted event and disabled state (#22, #23, kudos to @olejnjak)

3.2.1 - 2018-05-02 23:25:41

Carthage fixes - 2018-03-22 18:22:51

Old prebuilt framework was corrupt for App Store submit, this one is OK.

Threading fixes - 2018-02-04 01:09:41

Fix Textfield binding so it doesn't access text property on incorrect thread.

Patches - 2018-01-03 20:31:19

  • fix textfield binding

Carthage support - 2017-12-28 16:27:04


  • add support for Carthage

Breaking changes

  • move from Reachability to Reachability.swift as old one doesn't fully support Carthage

Swift 4 support - 2017-11-22 12:18:14

No mapping on main thread? - 2017-05-25 12:02:10

Now you can make sure your Argo and Marshal mappings are performed on background thread! But if you don't want to dont worry and see README. 😎

We also added some new extensions for UIStackView, UINavigationItem and UIView.

Mapping extensions - 2017-04-12 13:12:18

  • Add support for Marshal
  • Improve extensions for Argo
  • Make SDWebImage extension use its cache! That means make it really useful!

New Realm extensions - 2017-03-08 11:05:36

With this release we support Realm (thanks to @tkohout)! Stay tuned for more great stuff!

Swift 2.3 release - 2017-03-08 11:04:21

This version is the last that supports Swift 2.3