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18 lines
647 B
Swift
18 lines
647 B
Swift
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extension UIImage {
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func scaled(to size: CGSize) -> UIImage {
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var rect = CGRect.zero
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let aspectRatio = min(size.width / self.size.width, size.height / self.size.height)
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rect.size.width = self.size.width * aspectRatio
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rect.size.height = self.size.height * aspectRatio
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rect.origin.x = (size.width - rect.size.width) / 2
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rect.origin.y = (size.height - rect.size.height) / 2
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UIGraphicsBeginImageContextWithOptions(size, false, 0)
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draw(in: rect)
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let result = UIGraphicsGetImageFromCurrentImageContext()!
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UIGraphicsEndImageContext()
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return result
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}
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}
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