adjusting label to slider value swift

Question

I have a slider and label in my swift project. On the storyboard, I control dragged my slider onto my controller class for that page and created an outlet and also an action

Answer 1

Update the slider value in Main queue

@IBAction func sliderValueChanged(sender: UISlider) {
    var currentValue = Int(sender.value)
    println("Slider changing to \(currentValue) ?")
    dispatch_async(dispatch_get_main_queue(){
        sliderVal.text = "\(currentValue) Km"
    })
}

I hope this is helpful to you.