self.gifViewer.removeFromSuperview()
self.gifViewer = nil
如果您需要指定一个代表,那么您也可以添加它。
self.gifViewer.Delegate = nil
let gifViewer = yourGifViewerClass(frame: CGRect(x: 20, y: 20, width: self.view / 2, height: self.view / 2))
// setup your gifViewer