import UIKit
extension UIColor {
/// 24位16进制颜色
///
/// - Parameter hex: 24位16进制 数
convenience init(hex: UInt32) {
let r = (hex & 0xff0000) >> 16
let g = (hex & 0x00ff00) >> 8
let b = hex & 0x0000ff
self.init(r: UInt8(r), g: UInt8(g), b: UInt8(b))
}
/// 获取 UIColor
///
/// - Parameters:
/// - r: 红 取值: 0-255
/// - g: 绿 取值: 0-255
/// - b: 蓝 取值: 0-255
convenience init(r: UInt8, g: UInt8, b: UInt8) {
self.init(red: CGFloat(r) / 255.0, green: CGFloat(g) / 255.0, blue: CGFloat(b) / 255.0, alpha: 1)
}
/// 随机色
class var random: UIColor {
return UIColor(r: UInt8(arc4random_uniform(256)), g: UInt8(arc4random_uniform(256)), b: UInt8(arc4random_uniform(256)))
}
}
UIColor(hex: 0xf6f6f6)
UIColor.random
UIColor(r: 234, g: 234, b: 234)
