UILongPressGestureRecognizer

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The UILongPressGestureRecognizer lets you listen for a long press on a view. You can set the length of delay before the action method is called.

Swift

override func viewDidLoad() {
    super.viewDidLoad()

    // Long Press
    let longPressGesture = UILongPressGestureRecognizer(target: self, action: #selector(handleLongPress(_:)))
    longPressView.addGestureRecognizer(longPressGesture)
}

// Long press action
func handleLongPress(gesture: UILongPressGestureRecognizer) {
    if gesture.state == UIGestureRecognizerState.Began {
        label.text = "Long press recognized"
    }
}

Notes

A fuller sample project can be found here.
Change the minimumPressDuration to set the length of long press.

Found a mistake? Have a question or improvement idea? Let me know.

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