I want to add a percent sign to the value from a UISlider as a string in a UILabel as you move the slider around in swift.
Here is what I have already tried.
@IBOutlet weak var label2: UILabel!
@IBAction func slider2(_ sender: UISlider) {
let val1 = String(Int(sender.value))
label2.text = String(format: "%.2f%%", val1)
}
I was expecting the label to show something like 25.00% and change as you move the slider, but instead it only shows 0.00% even after moving the slider around.
val1 is a String created from an Int of the slider's float value. Just get rid of val1 and use the slider's value.
@IBAction func slider2(_ sender: UISlider) {
label2.text = String(format: "%.2f%%", sender.value)
}
Note that it would be better to use NumberFormatter with a numberFormat of .percent instead of using String(format:). This way the value is formatted correctly for the user's locale.
Thanks, the code you provided worked great, but I went with your suggestion to use NumberFormatter.