swift爬行篇 滑块,进度条,步进,

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滑块

1. 创建

  1. let Sli: UiSlider = UiSlider(frame: CGRectMake(10.0,270,300,5)) as UiSlider
  2.  
  3. Sli.minimumValue = 10
  4. Sli.maximumValue = 300
  5. Sli.continuous = false

continous属性为true:滑块在滑动过程中响应事件,为false时则只在滑动后响应事件


2.设置各区域的图片

  1. //滑块左边和右边的视图
  2. Sli.setMinimumTrackImage(UIImage(named: "green.png"),forState: UIControlState.Normal)
  3. Sli.setMinimumTrackImage(UIImage(named: "green.png"),forState: UIControlState.Normal)
  4. //滑块的视图
  5. //Sli.setThumbImage(UIImage(named: "green.png"),forState: UIControlState.Normal)
  6. //滑块最大值和最小值处的图片
  7. //Sli.minimumValueImage = UIImage(named: "green.png")
  8. //Sli.maximumValueImage = UIImage(named: "green.png")

3.响应事件和Tag
  1. Sli.addTarget(self,action: "Progress",forControlEvents: UIControlEvents.ValueChanged)
  2. Sli.tag = 2

4. 获取滑块的值
  1. let prog:UiSlider = self.view.viewWithTag(2) as! UiSlider
  2. let a = prog.value




进度条

1创建

  1. let Progress: UIProgressView = UIProgressView(frame: CGRectMake(10,3))
  2. Progress.progress = 0.0
  3. Progress.tag = 1

2.设置
  1. let a = 50
  2. aaa.setProgress(a/100,animated: false)


步进控件

1.创建

  1. let stepPro: UIStepper = UIStepper(frame: CGRectMake(10,310,5))
  2. stepPro.minimumValue = 0
  3. stepPro.maximumValue = 100
  4. stepPro.value = 0
  5. stepPro.stepValue = 2.0

2.响应事件
  1. stepPro.addTarget(self,action: "stepEven:",forControlEvents: UIControlEvents.TouchDown)
  2. stepPro.continuous = true
  3. stepPro.tag = 255

continuous属性UiSlider类似


3.获取步进的值

  1. let setp: UIStepper = self.view.viewWithTag(255) as! UIStepper
  2. let a = setp.value
  3. NSLog("\(a)")

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