swift - label 的font 设置 文字字体和大小

 

设置字体和颜色

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1 2	lab.textColor = UIColor.init(hexColor: "795928") lab.font = UIFont.systemFont(ofSize: 32, weight: UIFont.Weight.black)

　　

设置html 导图颜色

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extension UIColor {           /// 用十六进制颜色创建UIColor     ///     /// - Parameter hexColor: 十六进制颜色 (0F0F0F)     convenience init(hexColor: String) {                   // 存储转换后的数值         var red:UInt32 = 0, green:UInt32 = 0, blue:UInt32 = 0                   // 分别转换进行转换         Scanner(string: hexColor[0..<2]).scanHexInt32(&red)                   Scanner(string: hexColor[2..<4]).scanHexInt32(&green)                   Scanner(string: hexColor[4..<6]).scanHexInt32(&blue)                   self.init(red: CGFloat(red)/255.0, green: CGFloat(green)/255.0, blue: CGFloat(blue)/255.0, alpha: 1.0)     }     convenience init(hexColor: String, alpha: CGFloat) {                   // 存储转换后的数值         var red:UInt32 = 0, green:UInt32 = 0, blue:UInt32 = 0                   // 分别转换进行转换         Scanner(string: hexColor[0..<2]).scanHexInt32(&red)                   Scanner(string: hexColor[2..<4]).scanHexInt32(&green)                   Scanner(string: hexColor[4..<6]).scanHexInt32(&blue)                   self.init(red: CGFloat(red)/255.0, green: CGFloat(green)/255.0, blue: CGFloat(blue)/255.0, alpha: alpha)     } }

　　

 

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/// 初始化:十六进制颜色 /// /// - Parameter hexString: 十六进制颜色字符串(1:有#,2:没有#,3:含有0X) convenience init(hexString: String, alpha: CGFloat = 1.0) {     var cstr = hexString.trimmingCharacters(in:  CharacterSet.whitespacesAndNewlines).uppercased() as NSString     if(cstr.length < 6){         self.init(red: 0, green: 0, blue: 0, alpha: 0)         return     }     if(cstr.hasPrefix("0X")){         cstr = cstr.substring(from: 2) as NSString     }     if(cstr.hasPrefix("#")){         cstr = cstr.substring(from: 1) as NSString     }     if(cstr.length != 6){         self.init(red: 0, green: 0, blue: 0, alpha: 0)         return     }     var range = NSRange.init()     range.location = 0     range.length = 2     let rStr = cstr.substring(with: range)     range.location = 2     let gStr = cstr.substring(with: range)     range.location = 4     let bStr = cstr.substring(with: range)     var r :UInt32 = 0x0     var g :UInt32 = 0x0     var b :UInt32 = 0x0     Scanner.init(string: rStr).scanHexInt32(&r)     Scanner.init(string: gStr).scanHexInt32(&g)     Scanner.init(string: bStr).scanHexInt32(&b)     self.init(red: CGFloat(r)/255.0, green: CGFloat(g)/255.0, blue: CGFloat(b)/255.0, alpha: alpha) }