Draws a button with the image on the right hand side of the label

ReversedUIButton.swift

import UIKit

class ReversedUIButton: UIButton {
    
    var buffer:NSNumber = 5
    
    override func layoutSubviews() {
        super.layoutSubviews()
        
        let imageSize:CGSize = self.imageView.frame.size
        let titleSize:CGSize = self.titleLabel.frame.size
        
        var imageFrame:CGRect = self.imageView.frame
        imageFrame.origin.x = self.bounds.origin.x + self.frame.size.width - imageSize.width
        self.imageView.frame = imageFrame
        
        var labelFrame = self.titleLabel.frame
        labelFrame.origin.x = imageFrame.origin.x - labelFrame.width - buffer
        self.titleLabel.frame = labelFrame
    }
}