swift中UISlider的使用

let slider = UiSlider(frame: CGRectMake(10.0,10.0,(CGRectGetWidth(self.view.bounds) - 10.0 * 2),20.0))
self.view.addSubview(slider)
slider.backgroundColor = UIColor.lightGrayColor()

// 设置值（默认值为0.0，且值区间为0.0~1.0）
slider.minimumValue = 1.0
slider.maximumValue = 100.0
slider.setValue(20.0,animated: true)

// 注意：滑动条大小值（minimumTrackTintColor、maximumTrackTintColor）颜色与大小值左右两端图标（minimumValueImage、maximumValueImage）不能同时设置，否则图标设置无效
slider.minimumValueImage = UIImage(named: "normalImage")
slider.maximumValueImage = UIImage(named: "hightimage")

// 注意：滑动条大小值颜色（minimumTrackTintColor、maximumTrackTintColor）与滑动条大小值图标（setMinimumTrackImage、setMaximumTrackImage）不能同时设置，否则先设置的无效
// slider.setMinimumTrackImage(UIImage(named: "normalImage"),forState: UIControlState.normal)
// slider.setMaximumTrackImage(UIImage(named: "hightimage"),forState: UIControlState.normal)
        
slider.minimumTrackTintColor = UIColor.yellowColor()
slider.maximumTrackTintColor = UIColor.redColor()

// 滑动块颜色、或图标设置（注意：两者不能同时设置，否则先设置的无效。另外，默认thumb块比较大，可通过设置thumbImage的方法改变thumb大小）
slider.thumbTintColor = UIColor.greenColor()
slider.setThumbImage(UIImage(named: "hightimage"),forState: UIControlState.normal)
slider.setThumbImage(UIImage(named: "hightimage"),forState: UIControlState.Highlighted)

// 滑块滑动停止后才触发ValueChanged事件
slider.continuous = false
// 响应事件
slider.addTarget(self,action: Selector("sliderValueChange:"),forControlEvents: UIControlEvents.ValueChanged)

let label = UILabel(frame: CGRectMake(10.0,(CGRectGetMinY(slider.frame) + CGRectGetHeight(slider.bounds) + 10.0),(CGRectGetWidth(self.view.frame) - 10.0 * 2),30.0))
self.view.addSubview(label)
label.backgroundColor = UIColor.yellowColor()
label.textColor = UIColor.redColor()
label.tag = 1000
let value = slider.value
label.text = String(format: "slider当前值是：%.2f",arguments: [value])

// MARK: - sliderValueChange
func sliderValueChange(slider:UiSlider)
{
        let value = slider.value
        let label:UILabel = self.view.viewWithTag(1000) as! UILabel
        label.text = String(format: "slider当前值是：%.2f",arguments: [value])
        print("slider当前值是：\(value)")
}