快速按下按鈕時如何更改URL

Question

我有2個按鈕button1和button2，當按下button1時，我必須獲取url1，而當按下button2時，則在以下函數中獲取url2

           func fetchXMLData() {
    XMLParserFactory.fetchData(url: "https://brwterrgn.ergwgw.com/etwtt.cms") { (listOfXMLVM, error) in

        print("Fetch xml data")
        if error == nil {
            self.listOfNewsVM = listOfXMLVM!
            self.tableView.reloadData()
        }
        else {
            print(error?.localizedDescription ?? "Error")
        }
    }
}
}

Answer 1

您可以嘗試將url作為參數，並在調用者位置進行更改

override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view.

    fetchXMLData(url: "https://value.com/etwtt.cms")
}

func buttonAct(_ sender: UIButton) {
    fetchXMLData(url: "https://brwterrgn.ergwgw.com/etwtt.cms")
} 
func fetchXMLData(url:String) {
    XMLParserFactory.fetchData(url:url) { (listOfXMLVM, error) in

        print("Fetch xml data")
        if error == nil {
            self.listOfNewsVM = listOfXMLVM!
            self.tableView.reloadData()
        }
        else {
            print(error?.localizedDescription ?? "Error")
        }
    }
}

編輯

class FirstVC: UIViewController {

    func showSecond(_ sender: UIButton) {

        let sec = //
        sec.delegate = self
        present/push(sec)

    }

    func fetchXMLData(url:String) { 
        XMLParserFactory.fetchData(url:url) { (listOfXMLVM, error) in

            print("Fetch xml data")
            if error == nil {
                self.listOfNewsVM = listOfXMLVM!
                self.tableView.reloadData()
            }
            else {
                print(error?.localizedDescription ?? "Error")
            }
        }
}


class SecondVC: UIViewController {

    weak var delegate:FirstVC?

    func buttonAct(_ sender: UIButton) {
        delegate?.fetchXMLData(url: "https://brwterrgn.ergwgw.com/etwtt.cms")
    }

}

Answer 2

向此fetchXMLData函數添加參數

func fetchXMLData(withUrl url: String)

還要用此url變量替換您的url

XMLParserFactory.fetchData(url: url)

現在，在每個IBAction調用中，此函數都將不同的url作為此方法的參數傳遞

@IBAction func button1pressed(_ sender: UIButton) {
    fetchXMLData(withUrl: "url1.com")
}

@IBAction func button2pressed(_ sender: UIButton) {
    fetchXMLData(withUrl: "url2.com")
}