UIView extension.

UIView.swift

import UIKit

extension UIView {
	
	@IBInspectable var borderColor: UIColor? {
		get {
			if let c = layer.borderColor {
				return UIColor(cgColor: c)
			}
			return nil
		}
		set {
			layer.borderColor = newValue?.cgColor
		}
	}
	
	@IBInspectable var borderWidth: CGFloat {
		get {
			return layer.borderWidth
		}
		set {
			layer.borderWidth = newValue
		}
	}
	
	@IBInspectable var cornerRadius: CGFloat {
		get {
			return layer.cornerRadius
		}
		set {
			layer.cornerRadius = newValue
			clipsToBounds = newValue > 0.0
		}
	}
	
	func setRoundingCorners(_ rectCorner: UIRectCorner, radius: CGFloat) {
		let path = UIBezierPath(roundedRect: self.bounds,
		                        byRoundingCorners: rectCorner,
		                        cornerRadii: CGSize(width: radius, height: radius))
		let layer = CAShapeLayer()
		layer.frame = self.bounds
		layer.path = path.cgPath
		self.layer.mask = layer
	}
	
	func resetScrollsToTop(_ targetScrollView: UIScrollView) {
		if self is UIScrollView {
			(self as! UIScrollView).scrollsToTop = self == targetScrollView
		}
		for v in subviews {
			v.resetScrollsToTop(targetScrollView)
		}
	}
	
	func findScrollViews() {
		if self is UIScrollView {
			print(#function, "scrollsToTop: \((self as! UIScrollView).scrollsToTop), \(self.hash), \(self.frame)")
		}
		for v in subviews {
			v.findScrollViews()
		}
	}
	
}