Changing UISlider Images with Swift

Question

I'm trying to change the default images for UISliders with Swift. I'm editing didFinishLaunchingWithOptions in AppDelegate.

In Objective C you would do this:

UIImage *maxImage = [UIImage imageNamed:@"slider-track.png"];
[[UISlider appearance] setMaximumTrackImage:maxImage forState:UIControlStateNormal];

I've tried converting to Swift but have not been successful:

var maxImage:UIImage = UIImage (named:"slider-track.png")
UISlider.setMaximumTrackImage(image: maxImage, forState: UIControlStateNormal)

The first line is fine, but the second gives an error.

What is the correct syntax for the second line?

Thanks

Answer 1

Changing UISlider thumb image with Swift

yourSlider.setThumbImage(UIImage(named: "yourSlider.png"), forState: UIControlState.Normal)

    yourSlider.setThumbImage(UIImage(named: "yourSlider.png"), forState: UIControlState.Highlighted)

Answer 2

From Doc Example

let leftTrackImage = UIImage(named: "slider_blue_track")
customslider.setMinimumTrackImage(leftTrackImage, for: .normal)

Answer 3

SWIFT 3

class Slider: UISlider {

    @IBInspectable var thumbImage: UIImage?

    // MARK: Lifecycle

    override func awakeFromNib() {
        super.awakeFromNib()

        if let thumbImage = thumbImage {
            self.setThumbImage(thumbImage, for: .normal)
        }
    }
}