TintedImageButton.swift

import UIKit

class TintedImageButton: UIButton {
    let normalColor = UIColor.turquoise
    let pressedColor = UIColor.lightSeaGreen
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setImage(self.imageView!.image?.tintedImage(normalColor), for: UIControlState())
        setImage(self.imageView!.image?.tintedImage(pressedColor), for: .highlighted)
        setTitleColor(normalColor, for: UIControlState())
        setTitleColor(pressedColor, for: .highlighted)
    }
    
    override func layoutSubviews() {
        super.layoutSubviews()
        let imageSize = imageView!.frame.size
        let titleSize = titleLabel!.frame.size
        
        let bufferMagnitude: CGFloat = 6
        
        titleLabel?.font = UIFont.preferredFont(forTextStyle: UIFontTextStyle.subheadline)
        
        if titleLabel?.text?.characters.count ?? 0 > 0 {
            imageEdgeInsets = UIEdgeInsetsMake(-(titleSize.height + bufferMagnitude), 0, 0, -titleSize.width )
        }
        
        titleEdgeInsets = UIEdgeInsetsMake((imageSize.height + bufferMagnitude), -imageSize.width, 0, 0);
    }
}

fileprivate extension UIImage {
    func tintedImage(_ color: UIColor) -> UIImage {
        let blendMode:CGBlendMode = .destinationIn
        UIGraphicsBeginImageContextWithOptions(self.size, false, 0)
        color.setFill()
        let bounds = CGRect(x: 0, y: 0, width: self.size.width, height: self.size.height)
        UIRectFill(bounds)
        draw(in: bounds, blendMode: blendMode, alpha: 1)
        let tintedImage = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return tintedImage!
    }
}