UIKitCatalog/UIKitCatalog/SliderViewController.swift

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/*
See LICENSE folder for this samples licensing information.
Abstract:
A view controller that demonstrates how to use `UISlider`.
*/
import UIKit
class SliderViewController: UITableViewController {
// MARK: - Properties
@IBOutlet weak var defaultSlider: UISlider!
@IBOutlet weak var tintedSlider: UISlider!
@IBOutlet weak var customSlider: UISlider!
@IBOutlet weak var minMaxImageSlider: UISlider!
// MARK: - View Life Cycle
override func viewDidLoad() {
super.viewDidLoad()
configureDefaultSlider()
configureTintedSlider()
configureCustomSlider()
configureMinMaxImageSlider()
}
// MARK: - Configuration
func configureDefaultSlider() {
defaultSlider.minimumValue = 0
defaultSlider.maximumValue = 100
defaultSlider.value = 42
defaultSlider.isContinuous = true
defaultSlider.addTarget(self, action: #selector(SliderViewController.sliderValueDidChange(_:)), for: .valueChanged)
}
func configureTintedSlider() {
tintedSlider.minimumTrackTintColor = UIColor.systemBlue
tintedSlider.maximumTrackTintColor = UIColor.systemPurple
tintedSlider.addTarget(self, action: #selector(SliderViewController.sliderValueDidChange(_:)), for: .valueChanged)
}
func configureCustomSlider() {
let leftTrackImage = UIImage(named: "slider_blue_track")
customSlider.setMinimumTrackImage(leftTrackImage, for: .normal)
let rightTrackImage = UIImage(named: "slider_green_track")
customSlider.setMaximumTrackImage(rightTrackImage, for: .normal)
// Set the sliding thumb image (normal and highlighted).
let thumbImageConfig = UIImage.SymbolConfiguration(scale: .large)
let thumbImage = UIImage(systemName: "circle.fill", withConfiguration: thumbImageConfig)
customSlider.setThumbImage(thumbImage, for: .normal)
let thumbImageHighlighted = UIImage(systemName: "circle", withConfiguration: thumbImageConfig)
customSlider.setThumbImage(thumbImageHighlighted, for: .highlighted)
customSlider.minimumValue = 0
customSlider.maximumValue = 100
customSlider.isContinuous = false
customSlider.value = 84
customSlider.addTarget(self, action: #selector(SliderViewController.sliderValueDidChange(_:)), for: .valueChanged)
}
func configureMinMaxImageSlider() {
minMaxImageSlider.minimumValueImage = UIImage(systemName: "tortoise")
minMaxImageSlider.maximumValueImage = UIImage(systemName: "hare")
minMaxImageSlider.addTarget(self, action: #selector(SliderViewController.sliderValueDidChange(_:)), for: .valueChanged)
}
// MARK: - Actions
@objc
func sliderValueDidChange(_ slider: UISlider) {
print("A slider changed its value: \(slider).")
}
}