UIPageControl dot border

UIPageControl dot border

extension UIImage {
    class func outlinedEllipse(size: CGSize, color: UIColor, lineWidth: CGFloat = 1.0) -> UIImage? {
        
        UIGraphicsBeginImageContextWithOptions(size, false, 0.0)
        guard let context = UIGraphicsGetCurrentContext() else {
            return nil
        }
        
        context.setStrokeColor(color.cgColor)
        context.setLineWidth(lineWidth)
        let rect = CGRect(origin: .zero, size: size).insetBy(dx: lineWidth * 0.5, dy: lineWidth * 0.5)
        context.addEllipse(in: rect)
        context.strokePath()
        
        let image = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return image
    }
}


//USE
let image = UIImage.outlinedEllipse(size: CGSize(width: 7.0, height: 7.0), color: .lightGray)
self.pageControl.pageIndicatorTintColor = UIColor.init(patternImage: image!)
self.pageControl.currentPageIndicatorTintColor = .lightGray