RxSwift: How to add gesture to UILabel?

ios swift rx-swift rx-cocoa
Rugmangathan picture Rugmangathan · Jun 19, 2017 · Viewed 21.6k times · Source

I have a label with isUserInteractionEnabled set to true. Now, I need to add UITapGestureRecognizer for the label. Is there a way to add in Rx way.

I have looked at the RxSwift library here. Which they didn't provide any extension for adding gesture. The UILabel+Rx file has only text and attributedText.

Is there any workaround to add gesture to label?

Answer

RvdB picture RvdB · Jun 23, 2017

A UILabel is not configured with a tap gesture recognizer out of the box, that's why RxCocoa does not provide the means to listen to a gesture directly on the label. You will have to add the gesture recognizer yourself. Then you can use Rx to observe events from the recognizer, like so:

let disposeBag = DisposeBag()
let label = UILabel()
label.text = "Hello World!"

let tapGesture = UITapGestureRecognizer()
label.addGestureRecognizer(tapGesture)

tapGesture.rx.event.bind(onNext: { recognizer in
    print("touches: \(recognizer.numberOfTouches)") //or whatever you like
}).disposed(by: disposeBag)

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