增加NSSlider 0.1？ macOS，斯威夫特

Question

I have a NSSlider where the minimum is 0.6 and maximum is 1.

I want to be able to increment by 0.1 and not have values such as 0.6493 or 0.8435

How would I accomplish this?

I have the function

@IBAction func slider(sender : NSSlider) {
    var x: Double = sender.doubleValue
    // do something
}

Thanks.

Answer 1

Try this format :

@IBAction func slider(sender : NSSlider) {

  let value = sender.value

  // "%.1f" show how many decimals you want to show
  let formatted = String(format: "%.1f", value)

  //formatted will be printed 0.X

}