如何将一个视图控制器值发送到 swift 中的另一个视图控制器 table 视图？

Question

我有如下三个视图控制器

Add address Table view this is AddAddressViewcontroller, if i select addaddress button it goes to profileviewcontroller if i tap continue it goes to ZoomMapviewcontroller 这里是我确认然后我需要在 AddAddressViewcontroller 添加地址 Table 查看 中显示下面的标签文本怎么办那。

ZoomMapviewcontroller代码：

protocol DataEnteredDelegate: class {
func userDidEnterInformation(info: DataEnteredModelSave)
}

class NewZoomAddressViewController: UIViewController {
weak var delegate: DataEnteredDelegate? = nil

var zipName: String?
var localityName: String?
var sublocalityName: String?

@IBOutlet weak var mapView: MKMapView!
@IBOutlet weak var addressLabel: UILabel!

override func viewDidLoad() {
    super.viewDidLoad()
}
@IBAction func confirmBtn(_ sender: Any) {

    let viewController = self.storyboard?.instantiateViewController(withIdentifier: "AddAddressViewController") as! AddAddressViewController
   guard
        let zipName = zipName,
        let sublocalityName = sublocalityName,
        let localityName = localityName
        else { return }
    let enteredData = DataEnteredModelSave(pinCode: zipName, streetField: sublocalityName, cityField: localityName)
    delegate?.userDidEnterInformation(info: enteredData)
    self.navigationController?.pushViewController(viewController, animated: true)

}
}

此处如何将 zipName、locality、subLocality 值 w 发送到 Addaddressviewcontroller tableview

AddAddressViewcontroller代码：

 class AddAddressViewController: UIViewController,DataEnteredDelegate {
@IBOutlet var addressEDITTableview: UITableView!

var city: String?
var pincode: String?
var locality: String?

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell: EditAddressTableViewCell = tableView.dequeueReusableCell(withIdentifier: "EditAddressTableViewCell") as! EditAddressTableViewCell
    cell.nameHeader.text = "header"
    cell.addressLabel.text = "\(city!) \(pincode!) \(locality!)" // here i need ZoomMapviewcontroller valuew in row

}
}

请帮我写代码，我卡在这里很久了

Answer 1

这里有两种方法..

第一种方法假设您已在 AddAddressViewController 中正确设置 DataEnteredDelegate。你的错误是，你在 navigationController 堆栈中已经存在的 AddAddressViewcontroller 实例中调用委托方法，并再次将新的 AddAddressViewcontroller 推入该堆栈。

第二种方法，如果你真的想将一个新的 AddAddressViewController 实例再次推送到 navigationController 堆栈。

第一种方法：- 您的 navigationController 堆栈中已经有一个 AddAddressViewController 实例。所以你只需要弹出回到那个视图控制器。因此，您在 NewZoomAddressViewController 中的 confirmBtn 操作将是：-

@IBAction func confirmBtn(_ sender: Any) {

    guard
        let zipName = zipName,
        let sublocalityName = sublocalityName,
        let localityName = localityName
    else { return }

    if let viewControllers = self.navigationController?.viewControllers {
        for aViewController in viewControllers {
            if aViewController.isKind(of: AddAddressViewController.self) {
                let addAddressVC = aViewController as? AddAddressViewController
                let enteredData = DataEnteredModelSave(pinCode: zipName, streetField: sublocalityName, cityField: localityName)
                delegate?.userDidEnterInformation(info: enteredData)
                self.navigationController?.popToViewController(aViewController, animated: true)
                break
            }
        }
    }
}

第二种方法 :- 在这种情况下不需要委托。您可以直接将 zipName、sublocalityName 和 localityName 传递给新的 AddAddressViewController。

@IBAction func confirmBtn(_ sender: Any) {

    let viewController = self.storyboard?.instantiateViewController(withIdentifier: "AddAddressViewController") as! AddAddressViewController
    guard
        let zipName = zipName,
        let sublocalityName = sublocalityName,
        let localityName = localityName
        else { return }
    viewController.city = localityName
    viewController.pincode = zipName
    viewController.locality = localityName
    self.navigationController?.pushViewController(viewController, animated: true)
}

如何将一个视图控制器值发送到 swift 中的另一个视图控制器 table 视图？

How to send one view controller values to another view controller table view in swift?

uitableview

uiviewcontroller

uinavigationcontroller

swift