Continuosly call a function with UIBarButtonItem

Question

do you know a way to continuously call a function from a UIBarButtonItem in MDC if the button is kept pressed and then call it once if pressed once? Like a fwd/play behaviour.

UPDATE: I am not using the Storyboard

My button

let ffwButton = UIBarButtonItem(image: #imageLiteral(resourceName: "fwd"), style: .plain, target: self, action: #selector(clickfwd))

Thanks.

See this topic: https://stackoverflow.com/questions/34235903/press-and-hold-button-for-repeat-fire — Konstantin, Feb 19 '18 at 17:29
Unfortunately I am not using the Storyboard. Updating the question. — czane, Feb 19 '18 at 17:36
Have a look at this https://stackoverflow.com/questions/28058082/swift-long-press-gesture-recognizer-detect-taps-and-long-press?answertab=votes#tab-top — Mauricio Chirino, Feb 19 '18 at 18:06
@czane How is the lack of a storyboard relevant to your question or the links you are being given? — rmaddy, Feb 19 '18 at 18:11

score 1 · Answer 1 · answered Feb 19 '18 at 18:11

A UIBarButtonItem does not quite work like a UIButton because it doesn't inherit from UIControl. It has only one target and one action. UIButtons on the other hand inherit from UIControl; therefore you can add target/action pairs for all sorts of interesting control events, including .touchDown and .touchUpInside.

Using a UIButton you could start a timer upon .touchDown that sends events repeatedly and invalidate it upon .touchUpInside.

Since you need a UIBarButtonItem, have a look at its init(customView: UIView) initialiser. It lets you create a UIBarButtonItem with a UIButton inside.

Continuosly call a function with UIBarButtonItem

1 Answers1