将 UIView 转换为 UIImage

Posted on Edited on

Method One

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let image: UIImage?
let scale = UIScreen.main.scale
UIGraphicsBeginImageContextWithOptions(view.bounds.size, true, scale)
if let context = UIGraphicsGetCurrentContext() {
    view.layer.render(in: context)
}
image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()

Method Two

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let render = UIGraphicsImageRenderer(size: view.bounds.size)
let image = render.image { context in
    view.layer.render(in: context.cgContext)
}