代碼可以直接用
Swift(2022.2.7) 最新版：http://www.reibang.com/p/31ae2900853d
OC版：http://www.reibang.com/p/a8eb3bbdc00f

//MARK: - UIView 擴展
extension UIView{
    
    /** xib適配 */
    func layoutXib(){
        for  view in self.subviews {
            var returnRect = CGRect()
            returnRect.size.width = view.width.adapterWidthValue
            returnRect.size.height = view.height.adapterWidthValue
            returnRect.origin.x = view.x.adapterWidthValue
            returnRect.origin.y = view.y.adapterWidthValue
            view.frame = returnRect
            
            if view .isKind(of: UITextField.self){
                let viewField = view as! UITextField
                let attributedStr:NSMutableAttributedString = viewField.attributedText?.mutableCopy() as! NSMutableAttributedString
                viewField.attributedText?.enumerateAttributes(in: NSRange(location: 0,length: viewField.text?.count ?? 0), options: .longestEffectiveRangeNotRequired, using: { (dic, range, stop) in
                    attributedStr.removeAttribute(.font, range: range)
                    let font:UIFont = dic[NSAttributedString.Key.font] as! UIFont
                    let fontSize:CGFloat! = font.pointSize
                    let fontName:String! = font.fontName
                    attributedStr.addAttributes([NSAttributedString.Key.font:UIFont.init(name: fontName, size: Xlb.ADAPTATION_WIDTH(fontSize))!], range: range)
                })
                viewField.attributedText = attributedStr
                
                /** 設(shè)置PlaceHolder */
                let placeAttributedStr:NSMutableAttributedString = viewField.attributedPlaceholder?.mutableCopy() as! NSMutableAttributedString
                viewField.attributedPlaceholder?.enumerateAttributes(in: NSRange(location: 0,length: viewField.placeholder?.count ?? 0), options: .longestEffectiveRangeNotRequired, using: { (dic, range, stop) in
                    placeAttributedStr.removeAttribute(.font, range: range)
                    let font:UIFont = dic[NSAttributedString.Key.font] as! UIFont
                    let fontSize:CGFloat! = font.pointSize
                    let fontName:String! = font.fontName
                    placeAttributedStr.addAttributes([NSAttributedString.Key.font:UIFont.init(name: fontName, size: Xlb.ADAPTATION_WIDTH(fontSize))!], range: range)
                })
                viewField.attributedPlaceholder = placeAttributedStr
                
            } else if view.isKind(of: UIButton.self){
                let viewButton = view as! UIButton
                let fontSize:CGFloat! = viewButton.titleLabel!.font?.pointSize
                let fontName:String! = viewButton.titleLabel!.font?.fontName
                viewButton.titleLabel!.font = UIFont.init(name: fontName, size: Xlb.ADAPTATION_WIDTH(fontSize))
            } else if view.isKind(of: UILabel.self){
                let viewLabel = view as! UILabel
                let attributedStr:NSMutableAttributedString = viewLabel.attributedText?.mutableCopy() as! NSMutableAttributedString
                viewLabel.attributedText?.enumerateAttributes(in: NSRange(location: 0,length: viewLabel.text?.count ?? 0), options: .longestEffectiveRangeNotRequired, using: { (dic, range, stop) in
                    attributedStr.removeAttribute(.font, range: range)
                    let font:UIFont = dic[NSAttributedString.Key.font] as! UIFont
                    let fontSize:CGFloat! = font.pointSize
                    let fontName:String! = font.fontName
                    attributedStr.addAttributes([NSAttributedString.Key.font:UIFont.init(name: fontName, size: Xlb.ADAPTATION_WIDTH(fontSize))!], range: range)
                })
                viewLabel.attributedText = attributedStr
            } else if view.isKind(of: UITextView.self){
                let viewTextView  = view as! UITextView
                let fontSize:CGFloat! = viewTextView.font?.pointSize
                let fontName:String! = viewTextView.font?.fontName
                viewTextView.font = UIFont.init(name: fontName, size: Xlb.ADAPTATION_WIDTH(fontSize))
            }
        }
    }
    
    /** View轉(zhuǎn)Image */
    func imageWithView() ->(UIImage) {
        let imageSize = self.bounds.size
        UIGraphicsBeginImageContextWithOptions(imageSize, false, UIScreen.main.scale)
        self.layer.render(in: UIGraphicsGetCurrentContext()!)
        let image = UIGraphicsGetImageFromCurrentImageContext()!
        UIGraphicsEndImageContext()
        return image
    }
    
    var x: CGFloat {
        get { return self.frame.origin.x}
        set(value) {
            var origin = self.frame.origin
            origin.x = value
            self.frame.origin = origin
        }
    }
    var y: CGFloat {
        get { return self.frame.origin.y}
        set(value) {
            var origin = self.frame.origin
            origin.y = value
            self.frame.origin = origin
        }
    }
    var centerX: CGFloat {
        get { return self.center.x}
        set(value) {
            var center = self.center
            center.x = value
            self.center = center
        }
    }
    var centerY: CGFloat {
        get { return self.center.y}
        set(value) {
            var center = self.center
            center.y = value
            self.center = center
        }
    }
    var width: CGFloat {
        get { return self.frame.size.width}
        set(value) {
            var size = self.frame.size
            size.width = value
            self.frame.size = size
        }
    }
    var height: CGFloat {
        get { return self.frame.size.height}
        set(value) {
            var size = self.frame.size
            size.height = value
            self.frame.size = size
        }
    }
    var origin: CGPoint {
        get { return self.frame.origin}
        set(value) {
            self.frame.origin = value
        }
    }
    var size: CGSize {
        get { return self.frame.size}
        set(value) {
            self.frame.size = value
        }
    }
}

//MARK: - CGFloat 擴展
extension CGFloat{
    
    /** 寬度適配 */
    var adapterWidthValue:CGFloat {
        return Xlb.MAINSCREEN_WIDTH() * self / 375.0
    }
    /** 高度適配 */
    var adapterHeightValue:CGFloat {
        return Xlb.MAINSCREEN_HEIGHT() * self / 667.0
    }
}


class Xlb: NSObject {
    /** 適配寬度 */
    class func ADAPTATION_WIDTH( _ value:CGFloat) -> CGFloat {
        return self.MAINSCREEN_WIDTH() * value / 375.0
    }
    /** 適配高度 */
    class func ADAPTATION_HEIGHT( _ value:CGFloat) -> CGFloat {
        return self.MAINSCREEN_HEIGHT() * value / 667.0
    }
}