How do I make a function that executes when a tap gesture is lifted in Swift 3.0

Question

Is there any way that i can setup a tapGestureRecognizer in an iOS app, that either sends a signal both when an object is tapped, and when the tap is released, or setup up two tapGestureRecognizer's, one that handles the tap, and one that handles the release?

My tapGestureRecognizer is initialized like this:

let tapRecognizer = UITapGestureRecognizer(target: self, action: #selector(TapInToSubView))
    tapRecognizer.numberOfTapsRequired = 1

    sender.addGestureRecognizer(tapRecognizer)

Hope someone out there can help!

Answer 1

You need to set up a UILongPressGestureRecognizer . Set the minimumPressDuration and You can then handle the gesture state methods :

(sender.state == UIGestureRecognizerStateEnded)
(sender.state == UIGestureRecognizerStateBegan

etc. and fire your actions accordingly.

Long-press gestures are continuous. The gesture begins (began) when the number of allowable fingers (numberOfTouchesRequired) have been pressed for the specified period (minimumPressDuration) and the touches do not move beyond the allowable range of movement (allowableMovement). The gesture recognizer transitions to the Change state whenever a finger moves, and it ends (ended) when any of the fingers are lifted.