Swift：按钮功能未执行

Question

所以我有这个按钮的功能代码

@objc func facebookButtonPressed(_ urlString : String)
    {
        let url = URL(string: urlString)!;
        let safariViewController = SFSafariViewController(url: url);
        self.present(safariViewController, animated: true,completion: nil);
    }

我将此功能附加到我的按钮上

cell.facebookButton.addTarget(cell.facebookButton, action: #selector(facebookButtonPressed(_:facebookHandles[0])), for: UIControlEvents.touchUpInside);

facebookHandles 看起来是这样的：

let facebookHandles = ["https://www.facebook.com/harsh.mutha.902","https://www.facebook.com/skvrahul?fb_dtsg_ag=AdzxdqYcNvlFjd6QcX6a2sTXKagTQsR_OCuyHLe8z8gPug%3AAdxQz3YDUQ3tL-a7ME_0Owzu-02FSL0SO7VWqcJ_CpPUrw","https://www.facebook.com/saptarshi.roychaudhuri?fb_dtsg_ag=AdzxdqYcNvlFjd6QcX6a2sTXKagTQsR_OCuyHLe8z8gPug%3AAdxQz3YDUQ3tL-a7ME_0Owzu-02FSL0SO7VWqcJ_CpPUrw"];

为什么会出现这个错误，我该如何解决？

Argument of '#selector' does not refer to an '@objc' method, property, or initializer

collection view where the buttons are

从图片中可以看出，每个单元格的集合视图中有多个按钮。 现在，当单击该开发人员单元格的 facebook 按钮时，如何为开发人员适当地打开 facebook 页面？？

Answer 1

你不能将UIButton类型的参数更改为String，你可能需要在cellForItemAt里面

cell.facebookButton.addTarget(self, action: #selector(facebookButtonPressed(_:)), for: UIControlEvents.touchUpInside)
cell.facebookButton.tag = indexPath.row

和里面的vc实现

@objc func facebookButtonPressed(_ sender: UIButton) {
  print(facebookHandles[sender.tag])
  let url = URL(string: facebookHandles[sender.tag])!
  let safariViewController = SFSafariViewController(url: url)
  self.present(safariViewController, animated: true,completion: nil)
}