snapshot()
只会截取场景的截图。
要使用标签和按钮截取场景的屏幕截图,请使用以下方法:
func snapshot(of rect: CGRect? = nil) -> UIImage? {
UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, self.view.isOpaque, 0)
self.view.drawHierarchy(in: self.view.bounds, afterScreenUpdates: true)
let fullImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
guard let image = fullImage, let rect = rect else { return fullImage }
let scale = image.scale
let scaledRect = CGRect(x: rect.origin.x * scale, y: rect.origin.y * scale, width: rect.size.width * scale, height: rect.size.height * scale)
guard let cgImage = image.cgImage?.cropping(to: scaledRect) else { return nil }
return UIImage(cgImage: cgImage, scale: scale, orientation: .up)
}
截图:
@IBAction func takeScreenShotTapped(_ sender: Any) {
let screenShot = snapshot(of: CGRect(x: 80, y: 80, width: 100, height: 100))
}
如果您想截取全屏截图,则只需调用snapshot()
.
希望对你有帮助 :)