我有一个代码片段如下所示,它在我迁移到Swift 3之前一直正常工作,以便能够在UIView周围绘制边框。我只想能够在UIView的底部执行此操作。
let border = CALayer()
border.frame = CGRect(x: 0, y: self.basicDetailsView.frame.height - 2, width: self.basicDetailsView.frame.width, height: 2)
border.backgroundColor = UIColor.gray().cgColor
self.basicDetailsView.layer.addSublayer(border)