将我的项目转换为
swift 3后,我得到以下值“String”,该块中的第一行没有成员“stringByTrimmingCharactersInSet”错误:
extension UIColor { convenience init (hex:String) { var cString:String = hex.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet()).uppercased() // error appears on this line if (cString.hasPrefix("#")) { cString = (cString as Nsstring).substring(from: 1) } let rString = (cString as Nsstring).substring(to: 2) let gString = ((cString as Nsstring).substring(from: 2) as Nsstring).substring(to: 2) let bString = ((cString as Nsstring).substring(from: 4) as Nsstring).substring(to: 2) var r:CUnsignedInt = 0,g:CUnsignedInt = 0,b:CUnsignedInt = 0; Scanner(string: rString).scanHexInt32(&r) Scanner(string: gString).scanHexInt32(&g) Scanner(string: bString).scanHexInt32(&b) self.init(red: CGFloat(r) / 255.0,green: CGFloat(g) / 255.0,blue: CGFloat(b) / 255.0,alpha: CGFloat(1)) } }
我猜这个错误是由于’stringByTrimmingCharactersInSet’的语法变化而导致的.这个更正是什么?
解决方法
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