swift 实践- 11 -- UISlider

import UIKit

class ViewController: UIViewController {

override func viewDidLoad() {

super.viewDidLoad()

let slider = UISlider.init(frame: CGRect.init(x: 0, y: 0, width: 300, height: 50))

slider.center = self.view.center

slider.minimumValue = 0

slider.maximumValue = 1

slider.value = 0.5

self.view.addSubview(slider)

// 设置滑块的值  有动画

slider.setValue(0.5, animated: true)

// 滑块值改变响应

slider.isContinuous = false // 滑块滑动停止之后才会触发 ValueChanged 事件

slider.addTarget(self, action: #selector(sliderChange(slider:)), for: .valueChanged)

// 滑块左右两边槽的颜色

slider.minimumTrackTintColor = UIColor.red

slider.maximumTrackTintColor = UIColor.green

// 滑块后面槽线两侧添加图标

slider.minimumValueImage=UIImage(named:"2")  //左边图标

slider.maximumValueImage=UIImage(named:"2")  //右边图标

//设置滑块的图片

slider.setThumbImage(UIImage(named:"2"),for:.normal)

}

func sliderChange(slider:UISlider){

print(slider.value)

}

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

// Dispose of any resources that can be recreated.

}

}