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Questions tagged [reactive-cocoa-4]

The fourth version of RAC. ReactiveCocoa (RAC) is a Cocoa framework inspired by Functional Reactive Programming. It provides APIs for composing and transforming streams of values over time.

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How do I convert a RACSignal to a SignalProducer in ReactiveCocoa 5?

In ReactiveCocoa 4, we could convert a RACSignal into a SignalProducer using toSignalProducer(). This method does not exist in ReactiveCocoa 5, so how can we do the same thing?
Luke
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Why doesn't SignalProducer return a Signal?

I feel like I understand all of the basic components of ReactiveCocoa (conceptually), by understanding how to connect all of the pieces together is still a bit confusing. For example, after reading about Signal, I fully expected SignalProducer to…
Jason Pepas
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What happens to individual failures with combineLatest?

If i have two SignalProducers (really they are API service requests so they only send 'next' once), and combine them with combineLatest (as i want to dismiss a loading spinner once both finish), what happens if one of them fails? Or both fail? Does…
Chris
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ReactiveCocoa create a signal producer that can emit manually

I want to model the following scenario using ReactiveCocoa in swift. class A{ let flagSignalProducer = A Signal Producer someSignal.takeUntil(a signal that I can trigger manually which is created out of flagSignalProducer).subscribeNext{ (_)…
Swift Hipster
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Create a moving average (and other FIR filters) using ReactiveCocoa

I'm still getting started with ReactiveCocoa and functional reactive programming concepts, so maybe this is a dumb question. ReactiveCocoa seem naturally designed to react to streams of live data, touch events or accelerometer sensor input etc. Is…
chris838
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Missing rac_signalForControlEvents in RAC5

Now i update the ReactiveCocoa to 5(version 4.2.2) for the swift3. But there has not api rac_signalForControlEvents(.TouchUpInside) for UIButton,which i use in previous version Is there anyone know? How to resolve that?
Mike Lu
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ReactiveCocoa 4 - Delaying and filtering signal events

I am implementing a search textfield using ReactiveCocoa 4, and want to only hit the search API after no text has been inputted for X amount of time. I have done this previously by canceling previously scheduled and firing off a "executeSearch"…
hobosf
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Transform delegate callbacks to SignalProducer events?

I have an object that is a delegate. There are 6 delegate callbacks informing the delegate about the state of things. I have a MySpecialEvent swift enum that represents these states. Can you help me figure out how to correctly initialise a…
Earl Grey
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Simple UIGestureRecogniser example with ReactiveCocoa 4

Struggling to get a simple ReactiveCocoa 4 example working. I have pan gesture recogniser for a view in my hierarchy. I have an intended destination class for my touch events (lets assume I want to generate network packets based on the touch…
chris838
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Dismissing keyboard in UITextField with RAC(5)?

Newbie to ReactiveCocoa and ReactiveSwfit here... Sorry if the answer is obvious. I am trying to adapt the Start Developing iOS Apps with Swift sample to ReactiveSwift / ReactiveCocoa, and I am running into an issue with "translating" the…
Nick
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How can I convert a RACDisposable to a Disposable in ReactiveCocoa 5?

In ReactiveCocoa 5, how can I convert a RACDisposable to a Disposable? If I try to add a RACDisposable to a CompositeDisposable, I get "Binary operator '+=' cannot be applied to operands of type 'CompositeDisposable' and 'RACDisposable'".
Luke
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How to chain SignalProducers passing along the results

Given functions multiply() and convert() (minimal examples of the concept, I'm actually planning to query a remote server inside each function), what is a shorter way to implement multiplyAndConvert()? // call two async functions passing the result…
Mark Lilback
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ReactiveCocoa Swift crash

I have a weird crash in Hockeyapp for my application Thread 0 Crashed: 0 Tricount 0x00000001001f51d8 View.BalancesInteractor.balancesInfo.getter : View.BalanceInfoModel (BalancesInteractor.swift:22) 1 Tricount …
Erdem Inan
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ReactiveCocoa-How can i avoid to multiple subscribe the signal in collectionView's cell

func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell { let cell = collectionView.dequeueReusableCellWithReuseIdentifier(identifier, forIndexPath: indexPath) as! ComposeCell …
Ye HB
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Async image loading with ReactiveCocoa (4.2.1) and Swift

I'm a beginner using ReactiveCocoa with Swift for the first time. I'm building an app showing a list of movies and I'm using the MVVM pattern. My ViewModel looks like this: class HomeViewModel { let title:MutableProperty =…
Claus
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