ios – Swift: Customized Slider much like iPhone slide to show off

How can I create a customized slider much like this one within the picture?

Any concepts?
Thanks prematurely!

I attempted modifying the default ios UISlider. I additionally tried making a element utilizing 3 UIView: 1 for the “arrow”, 1 for the background and 1 for the dragged background however they dont work 🙁