Customize long press gesture recognizer - ios

Question

I want to customize my long press gesture recognizer in the following ways:
1) When I hold down on an object for 0.5 seconds, the object darkens, and
2) When I continue to hold down on the object for another second (total of 1.5 seconds), some action happens (e.g. the object disappears).
Essentially, by holding down on an object for a minimum of 1.5 seconds, two actions happened at two separate times. I also have a tap gesture recognizer, which might affect things.

Answer 1

The answer from #nathan is essentially fine but a detail is missing you need to implement the UIGestureRecognizerDelegate to allow both gestures works simultaneously, so this is my code
class ViewController: UIViewController, UIGestureRecognizerDelegate{
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
//this for .5 time
let firstGesture = UILongPressGestureRecognizer(target: self, action: #selector(firstMethod))
//this for 1.5
let secondGesture = UILongPressGestureRecognizer(target: self, action: #selector(secondMethod))
secondGesture.minimumPressDuration = 1.5
firstGesture.delegate = self
secondGesture.delegate = self
self.view.addGestureRecognizer(firstGesture)
self.view.addGestureRecognizer(secondGesture)
}
func firstMethod() {
debugPrint("short")
}
func secondMethod() {
debugPrint("long")
}
func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool{
return true
}
}
Hope this help

Answer 2

See Reinier's solution as it's the correct one. This one adds a delay to satisfy require(toFail:)
You can set the timing using the property minimumPressDuration (in seconds, default is 0.5)
let quickActionPress = UILongPressGestureRecognizer(target: self, action: #selector(ViewController.zeroFiveSecondPress(gesture:))) // 0.5 seconds by default
let laterActionPress = UILongPressGestureRecognizer(target: self, action: #selector(ViewController.oneFiveSecondPress(gesture:)))
laterActionPress.minimumPressDuration = 1.5
someView.addGestureRecognizer(quickActionPress)
someView.addGestureRecognizer(laterActionPress)
// If 1.5 detected, only execute that one
quickActionPress.require(toFail: laterActionPress)
#objc func zeroFiveSecondPress(gesture: UIGestureRecognizer) {
// Do something
print("0.5 press")
}
#objc func oneFiveSecondPress(gesture: UIGestureRecognizer) {
zeroFiveSecondPress(gesture: gesture)
// Do something else
print("1.5 press")
}