解决方法
您可以将新的子视图添加到应用程序窗口.
func attach(sender : UIButton) { // Calculate and replace the frame according to your keyboard frame var customView = UIView(frame: CGRect(x: 0,y: self.view.frame.size.height-300,width: self.view.frame.size.width,height: 300)) customView.backgroundColor = UIColor.redColor() customView.layer.zPosition = CGFloat(MAXFLOAT) var windowCount = UIApplication.sharedApplication().windows.count UIApplication.sharedApplication().windows[windowCount-1].addSubview(customView); }