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Resizing UIImage keeping aspect ratio
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| import UIKit | |
| extension UIImage { | |
| func resized(maxSize: CGFloat) -> UIImage? { | |
| let scale: CGFloat | |
| if size.width > size.height { | |
| scale = maxSize / size.width | |
| } | |
| else { | |
| scale = maxSize / size.height | |
| } | |
| let newWidth = size.width * scale | |
| let newHeight = size.height * scale | |
| UIGraphicsBeginImageContext(CGSize(width: newWidth, height: newHeight)) | |
| draw(in: CGRect(x: 0, y: 0, width: newWidth, height: newHeight)) | |
| let newImage = UIGraphicsGetImageFromCurrentImageContext() | |
| UIGraphicsEndImageContext() | |
| return newImage | |
| } | |
| } |
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