我有一个自定义ViewController，可以通过按钮进入全屏。它通常是View的subview(嵌入)。我从嵌入进入全屏是这样的:privatefuncenterFullScreenFromEmbed(){self.proxyView=UIView(frame:self.view.frame)self.proxyView?.isHidden=trueself.proxyView?.autoresizingMask=self.view.autoresizingMaskself.view.superview?.addSubview(self.proxyView!)//Nowsetthe