项目介绍：

CircularSlider

用Swift写的圆形滑杆（Slider）。100%使用IBDesignable，所用属性参数可IBInspectable。

Demo

Installation

支持cocoapods，只需要在podfile文件中添加以下关键字：

Swift 3:

pod 'CircularSlider'

Swift 2.2:

pod 'CircularSlider' ', '~> 0.2'

Usage

You can use this slider by declaring programmatically or by placing it in your Storyboard file.
All the paramters are IBInspectable, so you can configure the slider directly in the Storyboard file (in the attribute inspector tab) without write any line of code!

Delegate

Optionally you can conforms to the methods of the CircularSliderDelegate protocol.

If you want to admit only certain values you can implement this methods:

optional func circularSlider(circularSlider: CircularSlider, valueForValue value: Float) -> Float

With this method you override the actual slider value before the slider is updated.
Example: you want only rounded values:

func circularSlider(circularSlider: CircularSlider, valueForValue value: Float) -> Float {
return floorf(value)
}

The other methods you can implement are:

optional func circularSlider(circularSlider: CircularSlider, didBeginEditing textfield: UITextField)
optional func circularSlider(circularSlider: CircularSlider, didEndEditing textfield: UITextField)

Author

taglia3, matteo.tagliafico@gmail.com

LinkedIn, Matteo Tagliafico