Question

我的应用中有两个视图控制器，我尝试做的是将选择器视图数据带到“CallCamp”＃39;按钮，然后为每个选定的行（仅三行）调用不同的数字

注意：选择器视图和按钮位于不同的ViewControllers中。

所以在这里我到目前为止，我不认为语法是正确的，但这里是：

  @IBAction func CallComp(_ sender: UIButton) {
    let PickerRows = self.storyboard?.instantiateViewController(withIdentifier: "firstViewController") as? firstViewController




    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int)

    { let r1 = pickerView.selectedRow(inComponent:0)
        let r2 = pickerView.selectedRow(inComponent: 1)
        let r3 = pickerView.selectedRow(inComponent: 2)
        var rows = [r1,r2,r3]

        if r1 == true {if let phoneCallURL:NSURL = NSURL(string: "tel://\(900)") {
            let application:UIApplication = UIApplication.shared
            if (application.canOpenURL(phoneCallURL as URL)) {
                application.openURL(phoneCallURL as URL);
            }
            }
        }


        if r2 == true {if let phoneCallURL:NSURL = NSURL(string: "tel://\(909)") {
            let application:UIApplication = UIApplication.shared
            if (application.canOpenURL(phoneCallURL as URL)) {
                application.openURL(phoneCallURL as URL);
            }
            }
        }


      else  if r3 == true {if let phoneCallURL:NSURL = NSURL(string: "tel://\(999)") {
            let application:UIApplication = UIApplication.shared
            if (application.canOpenURL(phoneCallURL as URL)) {
                application.openURL(phoneCallURL as URL);
            }
            }
        }}

代码中存在许多错误，但我希望您了解我需要的内容

Answer 1

rows被定义为Int的数组，您的切换案例为Int

您实际上并没有根据pickerView选择做任何事情 - 您是否尝试过一些pickerView教程？

将PickerView连接到一个按钮

1 个答案: