废话不多说了，直接上Swift 代码吧。
extension UIScrollView {
/// 内容截图
var screenshotImage: UIImage? {
var image: UIImage? = nil
UIGraphicsBeginImageContext(contentSize)
let formerContentOffset = contentOffset
let formerFrame = frame
self.contentOffset = .zero
self.frame = CGRect(origin: CGPoint.zero, size: contentSize)
UIGraphicsBeginImageContextWithOptions(contentSize, false, UIScreen.main.scale)
if let currentContext = UIGraphicsGetCurrentContext() {
self.layer.render(in: currentContext)
image = UIGraphicsGetImageFromCurrentImageContext()
}
UIGraphicsEndImageContext()
self.contentOffset = formerContentOffset
self.frame = formerFrame
return image
}
}
