IOS 6 to Swift2 update Slider - ios

Question

any chance someone to help me in this code? it is a Slider that changes the size of the Fonts in a Label. this worked in IOS6 but I am trying to run on Swift 2.Thanks in advance.
import UIKit
class ViewController: UIViewController {
#IBAction func defaultSlider1(sender: UISlider) {
UISlider *slide = (UISlider *)sender;
int fonts = (int)(slide.value);
NSString *newtext = NSlog("%d", fonts);
label.font = [UIFont systemFontOfSize:fonts];
label.text = newtext;
}
override func viewDidLoad() {
super.viewDidLoad()
}
}

Answer 1

Please try following example (Demo):
import UIKit
class ViewController: UIViewController {
private var slider: UISlider!
private var label: UILabel!
private let minimumFontSize: Float = 16
private let maximumFontSize: Float = 48
override func viewDidLoad() {
super.viewDidLoad()
let width: CGFloat = view.bounds.width / 2
let height: CGFloat = 44.0
let size = CGSize(width: width, height: height)
let origin = CGPoint(x: self.view.center.x - (width / 2), y: self.view.center.y)
createSlider(origin, size: size)
createLabel(origin, size: size)
sliderAction()
}
func createSlider(origin: CGPoint, size: CGSize) {
let frame = CGRect(origin: origin, size: size)
self.slider = UISlider(frame: frame)
self.slider.addTarget(self,
action: Selector("sliderAction"),
forControlEvents: UIControlEvents.ValueChanged)
self.slider.minimumValue = minimumFontSize
self.slider.maximumValue = maximumFontSize
view.addSubview(self.slider)
}
func createLabel(origin: CGPoint, size: CGSize) {
let labelOrigin = CGPoint(x: origin.x, y: origin.y + size.height)
let frame = CGRect(origin: labelOrigin, size: size)
self.label = UILabel(frame: frame)
self.label.textAlignment = NSTextAlignment.Center
view.addSubview(self.label)
}
func sliderAction() {
let fontSize = CGFloat(self.slider.value)
self.label.font = UIFont.systemFontOfSize(fontSize)
self.label.text = "\(Int(fontSize))"
}
}
In case you're using Storyboards:
Add UISlider and UILabel to your View Controller Scene on the Storyboard
Insert #IBOutlets for each control (Ctrl+Drag from the control on the Storyboard to code, choose Outlet from Connection list)
Insert #IBAction for slider's Value Changed event (Ctrl+Drag from the slider control on the Storyboard to code, choose Action from Connection list)
You may end up with something like:
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var slider: UISlider!
#IBOutlet weak var label: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
self.slider.minimumValue = 16
self.slider.maximumValue = 48
self.sliderAction()
}
#IBAction func sliderValueChangedAction(sender: UISlider) {
self.sliderAction()
}
private func sliderAction() {
let fontSize = CGFloat(self.slider.value)
self.label.font = UIFont.systemFontOfSize(fontSize)
self.label.text = "\(Int(fontSize))"
}
}