Ios Swift-使用Segue将数据从容器传递到TableViewController

我有一个选项卡栏，其中一个视图的类型为UIViewController。在这个视图中，我添加了两个容器（一个用于即将到来的交付，另一个用于已完成的交付）。这两个容器中的每一个都链接到UITableViewController，以显示相关订单的表格。要访问容器，我有一个分段控件

到目前为止，我无法根据代码和方法将数据从viewcontroller传递到tableviewcontrller。我错过什么了吗

以下是我在视图控制器中的代码：

@IBOutlet weak var ordersSegementedControl: UISegmentedControl!
@IBOutlet weak var upcomingDeliveriesContainer: UIView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        SwiftLoader.show(title: "Retrieving Orders...", animated: true)
        let currentUser = FIRAuth.auth()?.currentUser
        ref.child("ordersSummary").queryOrderedByChild("userId").queryEqualToValue("\(currentUser!.uid)").queryLimitedToLast(15).observeEventType(.ChildAdded, withBlock: { (snapshot) in
            
            if(snapshot.value!["orderStatus"] as? String != "In Progress" || snapshot.value!["orderStatus"] as? String != "Pending" )
            {
                let tempOrderObject = OrderObject()
                //let properDate: UnixTime = snapshot.value!["dueDate"] as! Int
                tempOrderObject.dueDateInt = snapshot.value!["dueDate"] as? Int
                let properDate: UnixTime = snapshot.value!["dueDate"] as! Int
                tempOrderObject.dueDate =  properDate.toDay
                tempOrderObject.referenceNumber = snapshot.value!["orderReference"] as? String
                tempOrderObject.status = snapshot.value!["orderStatus"] as? String
                tempOrderObject.userId = snapshot.value!["userId"] as? String
                tempOrderObject.sender = snapshot.value!["sender"] as? String
                self.ordersObjectsArrray.append(tempOrderObject)
                self.ordersObjectsArrray.sortInPlace({ $0.dueDate > $1.dueDate })
                SwiftLoader.hide()
            }
            
        }){ (error) in
            SwiftLoader.hide()
            print(error.localizedDescription)
        }
        
    }


    
    @IBAction func showComponent(sender: UISegmentedControl) {
        if sender.selectedSegmentIndex == 0 {
            UIView.animateWithDuration(0.5, animations: {
                self.upcomingDeliveriesContainer.alpha = 1
            })
        } else {
            UIView.animateWithDuration(0.5, animations: {
                self.upcomingDeliveriesContainer.alpha = 1
            })
        }
    }
    
    
    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
        
        if(segue.identifier == "upcomingDeliveriesSegue")
        {
            let destinationVC = segue.destinationViewController as! UpcomingDeliveriesTableViewController
            destinationVC.ordersObjectsArrray = self.ordersObjectsArrray
            
        }
    }

class UpcomingDeliveriesTableViewController : UITableViewController {

    let ref = FIRDatabase.database().reference()
    var ordersObjectsArrray:[OrderObject]?
    let orderToPass = OrderObject()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        print("Array Count: \(self.ordersObjectsArrray!.count)")
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    // MARK: - Table view data source

    override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        // #warning Incomplete implementation, return the number of sections
        return 1
    }

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete implementation, return the number of rows
        return ordersObjectsArrray!.count
    }
    
    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        
        // Configure the cell...
        let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! UpcomingDeliveriesTableViewCell
        
        let orderEntry = self.ordersObjectsArrray![indexPath.row]
        cell.dueDateLabel.text = String(orderEntry.dueDate)
        cell.orderNoLabel.text = orderEntry.referenceNumber
        cell.statusLabel.text = orderEntry.status
        cell.senderLabel.text = orderEntry.sender
        
        return cell
    }


    
}

var tvc: UpcomingDeliveriesTableViewController!

override func viewDidLoad() {
    super.viewDidLoad()

    SwiftLoader.show(title: "Retrieving Orders...", animated: true)
    let currentUser = FIRAuth.auth()?.currentUser
    ref.child("ordersSummary").queryOrderedByChild("userId").queryEqualToValue("\(currentUser!.uid)").queryLimitedToLast(15).observeEventType(.ChildAdded, withBlock: { (snapshot) in

        if(snapshot.value!["orderStatus"] as? String != "In Progress" || snapshot.value!["orderStatus"] as? String != "Pending" )
        {
            let tempOrderObject = OrderObject()
            //let properDate: UnixTime = snapshot.value!["dueDate"] as! Int
            tempOrderObject.dueDateInt = snapshot.value!["dueDate"] as? Int
            let properDate: UnixTime = snapshot.value!["dueDate"] as! Int
            tempOrderObject.dueDate =  properDate.toDay
            tempOrderObject.referenceNumber = snapshot.value!["orderReference"] as? String
            tempOrderObject.status = snapshot.value!["orderStatus"] as? String
            tempOrderObject.userId = snapshot.value!["userId"] as? String
            tempOrderObject.sender = snapshot.value!["sender"] as? String
            self.ordersObjectsArrray.append(tempOrderObject)
            self.ordersObjectsArrray.sortInPlace({ $0.dueDate > $1.dueDate })
            SwiftLoader.hide()
        }

    tvc.ordersObjectsArrray = self.ordersObjectsArrray

    }){ (error) in
        SwiftLoader.hide()
        print(error.localizedDescription)
    }

}


override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {

    if(segue.identifier == "upcomingDeliveriesSegue")
    {
        tvc = segue.destinationViewController as! UpcomingDeliveriesTableViewController
    }
}

然后，我在即将到来的DeliveriestablevewController中拥有以下内容：

@IBOutlet weak var ordersSegementedControl: UISegmentedControl!
@IBOutlet weak var upcomingDeliveriesContainer: UIView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        SwiftLoader.show(title: "Retrieving Orders...", animated: true)
        let currentUser = FIRAuth.auth()?.currentUser
        ref.child("ordersSummary").queryOrderedByChild("userId").queryEqualToValue("\(currentUser!.uid)").queryLimitedToLast(15).observeEventType(.ChildAdded, withBlock: { (snapshot) in
            
            if(snapshot.value!["orderStatus"] as? String != "In Progress" || snapshot.value!["orderStatus"] as? String != "Pending" )
            {
                let tempOrderObject = OrderObject()
                //let properDate: UnixTime = snapshot.value!["dueDate"] as! Int
                tempOrderObject.dueDateInt = snapshot.value!["dueDate"] as? Int
                let properDate: UnixTime = snapshot.value!["dueDate"] as! Int
                tempOrderObject.dueDate =  properDate.toDay
                tempOrderObject.referenceNumber = snapshot.value!["orderReference"] as? String
                tempOrderObject.status = snapshot.value!["orderStatus"] as? String
                tempOrderObject.userId = snapshot.value!["userId"] as? String
                tempOrderObject.sender = snapshot.value!["sender"] as? String
                self.ordersObjectsArrray.append(tempOrderObject)
                self.ordersObjectsArrray.sortInPlace({ $0.dueDate > $1.dueDate })
                SwiftLoader.hide()
            }
            
        }){ (error) in
            SwiftLoader.hide()
            print(error.localizedDescription)
        }
        
    }


    
    @IBAction func showComponent(sender: UISegmentedControl) {
        if sender.selectedSegmentIndex == 0 {
            UIView.animateWithDuration(0.5, animations: {
                self.upcomingDeliveriesContainer.alpha = 1
            })
        } else {
            UIView.animateWithDuration(0.5, animations: {
                self.upcomingDeliveriesContainer.alpha = 1
            })
        }
    }
    
    
    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
        
        if(segue.identifier == "upcomingDeliveriesSegue")
        {
            let destinationVC = segue.destinationViewController as! UpcomingDeliveriesTableViewController
            destinationVC.ordersObjectsArrray = self.ordersObjectsArrray
            
        }
    }

class UpcomingDeliveriesTableViewController : UITableViewController {

    let ref = FIRDatabase.database().reference()
    var ordersObjectsArrray:[OrderObject]?
    let orderToPass = OrderObject()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        print("Array Count: \(self.ordersObjectsArrray!.count)")
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    // MARK: - Table view data source

    override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        // #warning Incomplete implementation, return the number of sections
        return 1
    }

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete implementation, return the number of rows
        return ordersObjectsArrray!.count
    }
    
    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        
        // Configure the cell...
        let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! UpcomingDeliveriesTableViewCell
        
        let orderEntry = self.ordersObjectsArrray![indexPath.row]
        cell.dueDateLabel.text = String(orderEntry.dueDate)
        cell.orderNoLabel.text = orderEntry.referenceNumber
        cell.statusLabel.text = orderEntry.status
        cell.senderLabel.text = orderEntry.sender
        
        return cell
    }


    
}

var tvc: UpcomingDeliveriesTableViewController!

override func viewDidLoad() {
    super.viewDidLoad()

    SwiftLoader.show(title: "Retrieving Orders...", animated: true)
    let currentUser = FIRAuth.auth()?.currentUser
    ref.child("ordersSummary").queryOrderedByChild("userId").queryEqualToValue("\(currentUser!.uid)").queryLimitedToLast(15).observeEventType(.ChildAdded, withBlock: { (snapshot) in

        if(snapshot.value!["orderStatus"] as? String != "In Progress" || snapshot.value!["orderStatus"] as? String != "Pending" )
        {
            let tempOrderObject = OrderObject()
            //let properDate: UnixTime = snapshot.value!["dueDate"] as! Int
            tempOrderObject.dueDateInt = snapshot.value!["dueDate"] as? Int
            let properDate: UnixTime = snapshot.value!["dueDate"] as! Int
            tempOrderObject.dueDate =  properDate.toDay
            tempOrderObject.referenceNumber = snapshot.value!["orderReference"] as? String
            tempOrderObject.status = snapshot.value!["orderStatus"] as? String
            tempOrderObject.userId = snapshot.value!["userId"] as? String
            tempOrderObject.sender = snapshot.value!["sender"] as? String
            self.ordersObjectsArrray.append(tempOrderObject)
            self.ordersObjectsArrray.sortInPlace({ $0.dueDate > $1.dueDate })
            SwiftLoader.hide()
        }

    tvc.ordersObjectsArrray = self.ordersObjectsArrray

    }){ (error) in
        SwiftLoader.hide()
        print(error.localizedDescription)
    }

}


override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {

    if(segue.identifier == "upcomingDeliveriesSegue")
    {
        tvc = segue.destinationViewController as! UpcomingDeliveriesTableViewController
    }
}

UpComingDeliverieStableController中的print语句将0打印为数组项的计数。到目前为止还没有通过

最后是情节提要快照：

---

感谢您

在

prepareForSegue

中只保存

UpcomingDeliveriesTableViewController的实例

，但

订单对象阵列

仅在您获得它时设置

例：

在视图控制器中：

@IBOutlet weak var ordersSegementedControl: UISegmentedControl!
@IBOutlet weak var upcomingDeliveriesContainer: UIView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        SwiftLoader.show(title: "Retrieving Orders...", animated: true)
        let currentUser = FIRAuth.auth()?.currentUser
        ref.child("ordersSummary").queryOrderedByChild("userId").queryEqualToValue("\(currentUser!.uid)").queryLimitedToLast(15).observeEventType(.ChildAdded, withBlock: { (snapshot) in
            
            if(snapshot.value!["orderStatus"] as? String != "In Progress" || snapshot.value!["orderStatus"] as? String != "Pending" )
            {
                let tempOrderObject = OrderObject()
                //let properDate: UnixTime = snapshot.value!["dueDate"] as! Int
                tempOrderObject.dueDateInt = snapshot.value!["dueDate"] as? Int
                let properDate: UnixTime = snapshot.value!["dueDate"] as! Int
                tempOrderObject.dueDate =  properDate.toDay
                tempOrderObject.referenceNumber = snapshot.value!["orderReference"] as? String
                tempOrderObject.status = snapshot.value!["orderStatus"] as? String
                tempOrderObject.userId = snapshot.value!["userId"] as? String
                tempOrderObject.sender = snapshot.value!["sender"] as? String
                self.ordersObjectsArrray.append(tempOrderObject)
                self.ordersObjectsArrray.sortInPlace({ $0.dueDate > $1.dueDate })
                SwiftLoader.hide()
            }
            
        }){ (error) in
            SwiftLoader.hide()
            print(error.localizedDescription)
        }
        
    }


    
    @IBAction func showComponent(sender: UISegmentedControl) {
        if sender.selectedSegmentIndex == 0 {
            UIView.animateWithDuration(0.5, animations: {
                self.upcomingDeliveriesContainer.alpha = 1
            })
        } else {
            UIView.animateWithDuration(0.5, animations: {
                self.upcomingDeliveriesContainer.alpha = 1
            })
        }
    }
    
    
    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
        
        if(segue.identifier == "upcomingDeliveriesSegue")
        {
            let destinationVC = segue.destinationViewController as! UpcomingDeliveriesTableViewController
            destinationVC.ordersObjectsArrray = self.ordersObjectsArrray
            
        }
    }

class UpcomingDeliveriesTableViewController : UITableViewController {

    let ref = FIRDatabase.database().reference()
    var ordersObjectsArrray:[OrderObject]?
    let orderToPass = OrderObject()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        print("Array Count: \(self.ordersObjectsArrray!.count)")
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    // MARK: - Table view data source

    override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        // #warning Incomplete implementation, return the number of sections
        return 1
    }

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete implementation, return the number of rows
        return ordersObjectsArrray!.count
    }
    
    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        
        // Configure the cell...
        let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! UpcomingDeliveriesTableViewCell
        
        let orderEntry = self.ordersObjectsArrray![indexPath.row]
        cell.dueDateLabel.text = String(orderEntry.dueDate)
        cell.orderNoLabel.text = orderEntry.referenceNumber
        cell.statusLabel.text = orderEntry.status
        cell.senderLabel.text = orderEntry.sender
        
        return cell
    }


    
}

var tvc: UpcomingDeliveriesTableViewController!

override func viewDidLoad() {
    super.viewDidLoad()

    SwiftLoader.show(title: "Retrieving Orders...", animated: true)
    let currentUser = FIRAuth.auth()?.currentUser
    ref.child("ordersSummary").queryOrderedByChild("userId").queryEqualToValue("\(currentUser!.uid)").queryLimitedToLast(15).observeEventType(.ChildAdded, withBlock: { (snapshot) in

        if(snapshot.value!["orderStatus"] as? String != "In Progress" || snapshot.value!["orderStatus"] as? String != "Pending" )
        {
            let tempOrderObject = OrderObject()
            //let properDate: UnixTime = snapshot.value!["dueDate"] as! Int
            tempOrderObject.dueDateInt = snapshot.value!["dueDate"] as? Int
            let properDate: UnixTime = snapshot.value!["dueDate"] as! Int
            tempOrderObject.dueDate =  properDate.toDay
            tempOrderObject.referenceNumber = snapshot.value!["orderReference"] as? String
            tempOrderObject.status = snapshot.value!["orderStatus"] as? String
            tempOrderObject.userId = snapshot.value!["userId"] as? String
            tempOrderObject.sender = snapshot.value!["sender"] as? String
            self.ordersObjectsArrray.append(tempOrderObject)
            self.ordersObjectsArrray.sortInPlace({ $0.dueDate > $1.dueDate })
            SwiftLoader.hide()
        }

    tvc.ordersObjectsArrray = self.ordersObjectsArrray

    }){ (error) in
        SwiftLoader.hide()
        print(error.localizedDescription)
    }

}


override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {

    if(segue.identifier == "upcomingDeliveriesSegue")
    {
        tvc = segue.destinationViewController as! UpcomingDeliveriesTableViewController
    }
}

---

检查是否要在UpComingDeliverieStableController中重新初始化OrderSobjectsArray？？我正在这样做：var orderSobjectsArray=[OrderObject]（）@VishalSonawane@VishalSonawane对不起，我没听清楚，你能给我看看你即将推出的DeliveryStableViewer控制器吗？？就在变量声明中。您在故事板中将segue标识符名称设置为“UpComingDeliveriesGue”了吗？如果不完全理解您所说的内容，Igor

prepareForSegue

会提前执行，那么您会在

ObserveeEventType

中获得

self.OrdersObjectsArray

，明白吗？在上面的prepareForSegue中，我们创建一个新变量tvc，然后呢？如何将其传递到下一个视图？在获取

self.ordersobjectsarray

传递值后，在视图中加载，就像我添加的那样：

tvc.ordersobjectsarray=self.ordersobjectsarray

var-tvc:UpcomingDeliveriesTableViewController在视图中创建控制器类