如何在点击按钮(在UICollectionViewController中)时激活共享扩展(UIActivityViewController)？

@IBAction func shareButtonTapped(_ sender: UIButton) {
    // 创建分享内容
    let textToShare = "Hello, World!"
    let imageToShare = UIImage(named: "image.png")
    let urlToShare = URL(string: "https://www.example.com")
    let activityItems = [textToShare, imageToShare, urlToShare] as [Any]

    // 创建UIActivityViewController实例
    let activityViewController = UIActivityViewController(activityItems: activityItems, applicationActivities: nil)

    // 设置回调方法
    activityViewController.completionWithItemsHandler = { (activityType, completed, returnedItems, error) in
        if completed {
            // 分享完成
            print("分享完成")
        } else {
            // 分享取消或失败
            print("分享取消或失败")
        }
    }

    // 展示UIActivityViewController
    if let popoverController = activityViewController.popoverPresentationController {
        popoverController.sourceView = sender
        popoverController.sourceRect = sender.bounds
    }
    present(activityViewController, animated: true, completion: nil)
}