Resize UIImage to 200x200pt/px

Question

I have been struggling resizing an image. Basically I have stumpled upon: How to scale down a UIImage and make it crispy / sharp at the same time instead of blurry?

Answer 1

Reduce image size by 1024, you can always convert according server capacity

func resizeImage(image: UIImage) -> UIImage {

        if image.size.height >= 1024 && image.size.width >= 1024 {

            UIGraphicsBeginImageContext(CGSize(width:1024, height:1024))
            image.draw(in: CGRect(x:0, y:0, width:1024, height:1024))

            let newImage = UIGraphicsGetImageFromCurrentImageContext()
            UIGraphicsEndImageContext()

            return newImage!

        }
        else if image.size.height >= 1024 && image.size.width < 1024
        {

            UIGraphicsBeginImageContext(CGSize(width:image.size.width, height:1024))
            image.draw(in: CGRect(x:0, y:0, width:image.size.width, height:1024))

            let newImage = UIGraphicsGetImageFromCurrentImageContext()
            UIGraphicsEndImageContext()

            return newImage!

        }
        else if image.size.width >= 1024 && image.size.height < 1024
        {

            UIGraphicsBeginImageContext(CGSize(width:1024, height:image.size.height))
            image.draw(in: CGRect(x:0, y:0, width:1024, height:image.size.height))

            let newImage = UIGraphicsGetImageFromCurrentImageContext()
            UIGraphicsEndImageContext()

            return newImage!

        }
        else
        {
            return image
        }

    }