How to make UISlider's “track” invisible?

Question

I\'m trying to emulate Apple\'s \"Slide to Unlock\" feature in my application. I get to this point (image below), but as you can see the UISlider\'s \"track\" is visible and is

Answer 1

Answer by @Arjay Waran is the best in my opinion.

Heres the Swift 3.0 Version of it.

slider.minimumTrackTintColor = UIColor.clear
slider.maximumTrackTintColor = UIColor.clear

Cheers