Swift Detect UISlider image tap - ios

Question

So I have a UISlider that looks like this:
Image here
It is set up like this, so the images are not UIImageView's, but images in the UISlider:
Image 2 here
I want to add a function so when the user press the image on left side, it runs one function, and when the user presses the image on the right side, it runs another function. Is this even possible?

Answer 1

Here's how you can do it. Please read the comments carefully.
import UIKit
class ViewController: UIViewController {
// This is linked to your storyboard layout
#IBOutlet weak var slider: UISlider!
override func viewDidLoad() {
super.viewDidLoad()
// Add a tap gesture recognizer to the slider
slider.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(sliderTapped(_:))))
}
#objc private func sliderTapped(_ tapRecognizer: UITapGestureRecognizer) {
let location = tapRecognizer.location(in: slider)
// UISlider can tell you min/max value image frames
// CAUTION: Use images those are big enough to be easy tap targets
// In my case, I used images of size 30x30
let minImageRect = slider.minimumValueImageRect(forBounds: slider.bounds)
let maxImageRect = slider.maximumValueImageRect(forBounds: slider.bounds)
// Now you can check which image out of min/max was tapped
if minImageRect.contains(location) {
print("Min Image Tapped")
} else if maxImageRect.contains(location) {
print("Max Image Tapped")
}
}
}