Ios 共享按钮未在iMessage上共享

我试图实现一个共享按钮，允许通过文本消息共享表视图中的文章，但由于某些原因，当我在模拟器中运行它时，它不会复制链接，也不会显示在iPhone 8或8 plus上。我如何解决这个问题

@IBAction func shareButton(_ sender: UIButton) {
        
        let buttonPosition = sender.convert(CGPoint.zero, to: self.table_view)
        if let indexPath = self.table_view.indexPathForRow(at:buttonPosition) {
            let newRelease = articles?[indexPath.row].urlWebsite
            let activityVC = UIActivityViewController(activityItems:[newRelease ?? 0], applicationActivities: nil)
            activityVC.popoverPresentationController?.sourceView = self.view
            self.present(activityVC,animated: true, completion: nil)

        }