iOS 长按复制

1、

// 长按手势
let longpressGesutre = UILongPressGestureRecognizer(target: self, action: #selector(self.handleLongpressGesture(tap:)))
linkLab.addGestureRecognizer(longpressGesutre)

2、

@objc func handleLongpressGesture(tap: UILongPressGestureRecognizer) {
    UIPasteboard.general.string = singleMaterialModel.content
    if self.delegate != nil {
        self.delegate?.didCopySuccess!()
    }
}