Created
October 23, 2017 02:17
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UIImage+Extension
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| extension UIImage { | |
| public func cropped(to rect: CGRect) -> UIImage? { | |
| UIGraphicsBeginImageContextWithOptions(rect.size, true, scale) | |
| draw(at: rect.origin.applying(CGAffineTransform(scaleX: -1, y: -1))) | |
| let image = UIGraphicsGetImageFromCurrentImageContext() | |
| UIGraphicsEndImageContext() | |
| return image | |
| } | |
| public func squareCropped() -> UIImage? { | |
| let rect = size.width > size.height | |
| ? CGRect(x: (size.width - size.height) * 0.5, y: 0, width: size.height, height: size.height) | |
| : CGRect(x: 0, y: (size.height - size.width) * 0.5, width: size.width, height: size.width) | |
| return cropped(to: rect) | |
| } | |
| public func resized(to size: CGSize) -> UIImage? { | |
| UIGraphicsBeginImageContextWithOptions(size, true, scale) | |
| draw(in: CGRect(origin: .zero, size: size)) | |
| let image = UIGraphicsGetImageFromCurrentImageContext() | |
| UIGraphicsEndImageContext() | |
| return image | |
| } | |
| } |
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