UIButton image vertical aligned with text

UIButton+alignTextBelow.swift

// from; https://developer-eungb.tistory.com/30

extension UIButton {
	func alignTextBelow(spacing: CGFloat = 4.0) {
		guard let image = self.imageView?.image else {
			return
		}

		guard let titleLabel = self.titleLabel else {
			return
		}

		guard let titleText = titleLabel.text else {
			return
		}

		let titleSize = titleText.size(withAttributes: [
			NSAttributedString.Key.font: titleLabel.font as Any
		])

		titleEdgeInsets = UIEdgeInsets(top: spacing, left: -image.size.width, bottom: -image.size.height, right: 0)
		imageEdgeInsets = UIEdgeInsets(top: -(titleSize.height + spacing), left: 0, bottom: 0, right: -titleSize.width)
	}
}