Transform UIView to UIImage and set it with UIImageView - ios

Question

I refered to this question, and did add extension to UIView:
extension UIView {
// Using a function since `var image` might conflict with an existing variable
// (like on `UIImageView`)
func asImage() -> UIImage {
if #available(iOS 10.0, *) {
let renderer = UIGraphicsImageRenderer(bounds: bounds)
return renderer.image { rendererContext in
layer.render(in: rendererContext.cgContext)
}
} else {
UIGraphicsBeginImageContext(self.frame.size)
self.layer.render(in:UIGraphicsGetCurrentContext()!)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return UIImage(cgImage: image!.cgImage!)
}
}
}
Then i create very simple test view:
private class FakeTestView: BaseView {
override func prepare() {
backgroundColor = .blue
setup()
}
private func setup(){
let lbl = LabelSL.regular()
lbl.text = "LabelSL.regular()"
addSubview(lbl)
lbl.centerXAnchor.constraint(equalTo: centerXAnchor).isActive = true
lbl.centerYAnchor.constraint(equalTo: centerYAnchor).isActive = true
}
}
That view showing correctly when treated as UIView.
Finally, i tried:
let newSlideFrame = CGRect(x: CGFloat(i) * event.expectedWidth(),
y: 0,
width: event.expectedWidth(),
height: frame.size.height)
let imgView = UIImageView()
imgView.contentMode = .scaleAspectFit
imgView.frame = newSlideFrame
imgView.image = FakeTestView().asImage()
scroll.addSubview(imgView)
But there is nothing showing. Code from above work when i try to add UIView, or UIImageView with sample images.