作为一个 UIColor 的扩展处理 HEX 颜色。用 Swift 编写。
// With hash
let color: UIColor = UIColor(hexString: "#ff8942")
// Without hash, with alpha
let secondColor: UIColor = UIColor(hexString: "ff8942", alpha: 0.5)
// Short handling
let shortColorWithHex: UIColor = UIColor(hexString: "fff")对于不想输入双引号的人来说，您可以从真实的十六进制值（一个 Int）初始化一个颜色
// With hash
let color: UIColor = UIColor(hex: 0xff8942)
// Without hash, with alpha
let secondColor: UIColor = UIColor(hex: 0xff8942, alpha: 0.5)// With hash
let color: NSColor = NSColor(hexString: "#ff8942")
// Without hash, with alpha
let secondColor: NSColor = NSColor(hexString: "ff8942", alpha: 0.5)
// Short handling
let shortColorWithHex: NSColor = NSColor(hexString: "fff")
// From a real hex value (an `Int`)
// With hash
let color: NSColor = NSColor(hex: 0xff8942)
// Without hash, with alpha
let secondColor: NSColor = NSColor(hex: 0xff8942, alpha: 0.5)SwiftColors.swift 文件拖放到您的项目中iOS 8.0 或更高版本。