Learn-iOS-Swift-by-Examples/UICatalog/Swift/UIKitCatalog/SliderViewController.swift

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/*
Copyright (C) 2016 Apple Inc. All Rights Reserved.
See LICENSE.txt 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!
// MARK: - View Life Cycle
override func viewDidLoad() {
super.viewDidLoad()
configureDefaultSlider()
configureTintedSlider()
configureCustomSlider()
}
// MARK: - Configuration
func configureDefaultSlider() {
defaultSlider.minimumValue = 0
defaultSlider.maximumValue = 100
defaultSlider.value = 42
defaultSlider.continuous = true
defaultSlider.addTarget(self, action: #selector(SliderViewController.sliderValueDidChange(_:)), forControlEvents: .ValueChanged)
}
func configureTintedSlider() {
tintedSlider.minimumTrackTintColor = UIColor.applicationBlueColor
tintedSlider.maximumTrackTintColor = UIColor.applicationPurpleColor
tintedSlider.addTarget(self, action: #selector(SliderViewController.sliderValueDidChange(_:)), forControlEvents: .ValueChanged)
}
func configureCustomSlider() {
let leftTrackImage = UIImage(named: "slider_blue_track")
customSlider.setMinimumTrackImage(leftTrackImage, forState: .Normal)
let rightTrackImage = UIImage(named: "slider_green_track")
customSlider.setMaximumTrackImage(rightTrackImage, forState: .Normal)
let thumbImage = UIImage(named: "slider_thumb")
customSlider.setThumbImage(thumbImage, forState: .Normal)
customSlider.minimumValue = 0
customSlider.maximumValue = 100
customSlider.continuous = false
customSlider.value = 84
customSlider.addTarget(self, action: #selector(SliderViewController.sliderValueDidChange(_:)), forControlEvents: .ValueChanged)
}
// MARK: - Actions
func sliderValueDidChange(slider: UISlider) {
NSLog("A slider changed its value: \(slider).")
}
}