static func cropImage(_ image: UIImage, withRect rect: CGRect) -> UIImage? {
if let cgImage = image.cgImage,
let croppedCgImage = cgImage.cropping(to: rect) {
return UIImage(cgImage: croppedCgImage)
} else if let ciImage = image.ciImage {
let croppedCiImage = ciImage.cropping(to: rect)
return UIImage(ciImage: croppedCiImage)
}
return nil
}
static func cropImage(_ image: UIImage, withRect rect: CGRect) -> UIImage? {
UIGraphicsBeginImageContext(rect.size)
guard let context = UIGraphicsGetCurrentContext() else { return nil }
context.translateBy(x: -rect.minX, y: -rect.minY)
image.draw(at: .zero)
let croppedImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return croppedImage
}
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