let slider = SplitSlider()

// Minimal slider value.
slider.min = 0

// Maximal slider value.
slider.max = 100

// Step value of the slider.
slider.step = 5

// Font of the value labels.
slider.labelFont = UIFont.systemFont(ofSize: 10)

// Font color of the value labels.
slider.labelTextColor = UIColor.black

// Size of the slider's thumb.
slider.thumbSize = 20

// Color of the thumb.
slider.thumbColor = UIColor.darkGray

// Track height.
slider.trackHeight = 0

// Track color.
slider.trackColor = = UIColor.lightGray

// Color of selected part of the track.
slider.trackHighlightColor = UIColor.gray

// Determines if thumb should be snapped to the closest step after the move.
slider.snapToStep = true

// Slider portion selected - called when user selects (holds) portion of the slider. Return `nil` when no portion is being selected.
splitSlider
    .rx
    .portionSelected
    .asDriver(onErrorJustReturn: nil)
    .drive(onNext: { portion in
        let portionString = portion == self.splitSlider.left ? "left" : "right"
        NSLog("Selected part: \(portion == nil ? "none" : portionString)")
    }).disposed(by: disposeBag)
    
// Slider value changed for portion of slider.
splitSlider
    .rx
    .portionValueChanged
    .asDriver(onErrorJustReturn: (0, SplitSliderPortion()))
    .drive(onNext: { [unowned self] (value, portion) in
        let portionString = portion == self.splitSlider.left ? "left" : "right"
        NSLog("Current value: \(value) (portion: \(portionString))")
    }).disposed(by: disposeBag)