Why does UIImageView remove from Array when I used removeFromSuperview() with Swift?
// display UIImageView
var imageViews: [UIImageView] = [UIImageView]()
imageViews.append(UIImageView(image: UIImage(named: "test.jpg")))
let imageView = imageViews[0]
self.view.addSubview(imageView) // display image view
let overlayView = UIView(frame: self.view.frame)
overlayView.addSubview(imageView)
self.view.addSubview(overlayView)
overlayView.removeFromSuperview()
// not display image view
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