Resize Image without losing quality

Question

I\'m using the functions below to resize my images width & height but I noticed that it ruins the image quality.

class func imageWithSize(image: UIImage,         


        

Answer 1

Here is my code in swift. For squared images, it works really well and without any loss of quality!

extension UIImage {

    func resize(targetSize: CGSize) -> UIImage {
        return UIGraphicsImageRenderer(size:targetSize).image { _ in
            self.draw(in: CGRect(origin: .zero, size: targetSize))
        }
    }

}