What gets called when a UISlider value changes?

Question

Does a method get called when a UISlider\'s value changes? I want to be able to update a value based on the UISliders value, but only

Answer 1

For Swift 3

//There is your slider
@IBOutlet weak var mSlider: UISlider!

//add a target on your slider on your viewDidLoad for example
self.mSlider.addTarget(self, action: #selector(MyClass.onLuminosityChange), for: UIControlEvents.valueChanged)

//callback called when value change
func onLuminosityChange(){
    let value = self.mSlider.value
}