转载请声明出处：1、UIButton 概述继承关系：UISwitch -> UIControl -> UIView2、控件样式
3、使用示例var myButton: UIButton?var mySwitch: UISwitch?override func viewDidLoad() {self.myButton = UIButton.buttonWithType(.System) as? UIButtonself.myButton!.frame = CGRectMake(self.view.frame.width/2 – 100, 200, 200, 100)self.myButton!.setTitle("change state", forState: UIControlState.Normal)self.myButton!.addTarget(self, action: "buttonAction", forControlEvents: UIControlEvents.TouchUpInside)self.mySwitch = UISwitch(frame:CGRectMake(self.view.frame.width/2 – 20, 400, 10, 100))self.mySwitch!.on = trueself.mySwitch!.onTintColor = UIColor.lightGrayColor()self.mySwitch!.tintColor = UIColor.greenColor()self.mySwitch!.thumbTintColor = UIColor.blackColor()self.mySwitch!.addTarget(self,action:Selector("switchChange:"), forControlEvents: UIControlEvents.ValueChanged)// 扩展：还可以通过设置 onImage、offImage 来来添加图片self.view.addSubview(self.myButton!)self.view.addSubview(self.mySwitch!)}/// 按钮相应事件func buttonAction() {if self.mySwitch!.on{println("Switch is on")self.mySwitch!.setOn(false, animated:true)}else{println("Switch is off")self.mySwitch!.setOn(true, animated:true)}}/// 开关控制事件func switchChange(switchState: UISwitch) {if switchState.on {println("Switch is on")} else {println("Switch is off")}}4、结语Github 上项目地址：UISwitchSample
文章最后更新时间：2015年3月18日10:58:09。参考资料如下：
UIKit User Interface Catalog: Switches
，闽南的花市，一开始是来自漳州百花村，
