我无法 post 通知

Question

我搜索了 stack over flow 和所有站点，但无法 post 通知，我需要将数据从这个 class 传递到另一个 class 我需要发送 bool 值进行验证谁能帮我传递布尔值？

这是它的代码

        radioSelected = false
        NotificationCenter.default.addObserver(self, selector: #selector(paymentRadioEnable(n:)), name: NSNotification.Name.init(rawValue: "notification"), object: nil)
        self.shippingmethodURL()
        shippingTableView.delegate = self
        shippingTableView.dataSource = self
        shippingTableView.rowHeight = UITableViewAutomaticDimension
        shippingTableView.estimatedRowHeight = shippingTableView.rowHeight
        // Initialization code
    }
    func paymentRadioEnable(n:NSNotification){

    }
    func paymentRadioAction(button : KGRadioButton) {
        _ = button.center
        let centralPoint = button.superview?.convert(button.center, to:self.shippingTableView)
        let indexPath =  self.shippingTableView.indexPathForRow(at: centralPoint!)
        if button.isSelected {

        } else{
            chekIndex = indexPath
            radioSelected = true
            self.shippingTableView.reloadData()
        }
    }

这是另一个 class，我需要 post 要检查的 bool 值

@IBAction func continueButtonAction(_ sender: Any) {
        NotificationCenter.default.post(name: NSNotification.Name(rawValue: "notification"), object: nil)
            if radioSelected == false {
                let radiobutton = SCLAlertView()
                _ =  radiobutton.showError("Warning", subTitle: "Please select shipping method", closeButtonTitle: "OK")
            }else{
                let storyboard = UIStoryboard(name: "Main", bundle: nil)
                let addtoCartVC = storyboard.instantiateViewController(withIdentifier: "payment") as! PaymentMethodViewController
                self.navigationController?.pushViewController(addtoCartVC, animated: true)
            }
    }

Answer 1

您可以在发布通知时将数据发送到对象中

let data : NSDictionary = ["DataKey" : "DataValue"]

NotificationCenter.default.post(name: NSNotification.Name(rawValue: "notification"), object: data)

并且在发布之后，您可以在通知处理程序中获取相同的数据。

我无法 post 通知

I am unable to post the notifications

ios

swift3

nsnotificationcenter