@IBOutlet var rangeSlider: CHRangeSlider!

override func viewDidLoad() {
    super.viewDidLoad()
    rangeSlider.minValue = 4500
    rangeSlider.maxValue = 5500

    rangeSlider.delegate = self
    let minSelectItem = CHSliderHandler()
    minSelectItem.bottomText = "委托价"
    minSelectItem.value = 4600
    minSelectItem.handlerColor = UIColor.red

    let midSelectItem = CHSliderHandler()
    midSelectItem.bottomText = "当前价"
    midSelectItem.value = 5000
    midSelectItem.handlerColor = self.rangeSlider.tintColor

    let maxSelectItem = CHSliderHandler()
    maxSelectItem.bottomText = "触发价"
    maxSelectItem.value = 5300
    maxSelectItem.handlerColor = UIColor.white
    maxSelectItem.borderColor = self.rangeSlider.tintColor
    maxSelectItem.isSolid = false
    self.rangeSlider.handlers = [minSelectItem, midSelectItem, maxSelectItem]
}

// MARK: - 实现滑杆委托方法
extension ViewController: CHRangeSliderDelegate {

    func rangeSlider(slider: CHRangeSlider, stringForValue value: Double, handler: CHSliderHandler) -> String {
        let text = String(format: "￥%.2f", value)
        if handler === self.minSelectItem {
            self.textFieldOrder.text = String(format: "%.2f", value)
        } else if handler === self.midSelectItem {
            self.textFieldCurrent.text = String(format: "%.2f", value)
        } else if handler === self.maxSelectItem {
            self.textFieldTrigger.text = String(format: "%.2f", value)
        }
        return text
    }
}