Question

我很难在我的UIView中显示两个tableviews。

如果我隐藏第一个表格，它只会显示第二个表格。

有任何帮助吗？我需要让它显示两个表，一个在另一个之下。它只能在隐藏另一个时单独工作：（

class AccountsViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {

//MARK: Properties

@IBOutlet weak var totalLabel: UILabel!
@IBOutlet weak var tableview1: UITableView!
@IBOutlet weak var tableview2: UITableView!


override func viewDidLoad() {
    super.viewDidLoad()

    //Set the table background as the image
    tableview1.backgroundView = UIImageView(image: UIImage(named: "splasnowords-1.png"))
    tableview2.backgroundView = UIImageView(image: UIImage(named: "splasnowords-1.png"))

    //Use the edit button item provided by the table view controller
    navigationItem.leftBarButtonItem = editButtonItem
    //self.navigationItem.leftBarButtonItem = self.editButtonItem;


    //Calculate the latest totalstandings
    BudgetDataModel.calculateTotalStandings()
    totalLabel.text = ("Total Current Standings = £\(BudgetDataModel.returnTrueValue(number: BudgetDataModel.total))")

    self.tableview1.delegate = self
    self.tableview2.delegate = self
    self.tableview1.dataSource = self
    self.tableview2.dataSource = self

    self.tableview2.isHidden = false
    self.tableview1.isHidden = true

   // self.tableview.reloadData()
 //   self.tableview2.reloadData()

}

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

override func viewDidAppear(_ animated: Bool){
    tableview1.reloadData()
    tableview2.reloadData()
}

// MARK: - Table view data source


func numberOfSections(in tableView: UITableView) -> Int {
    return 1
}
/*
   if (tableView == self.tableview){
    return 1
        //BudgetDataModel.budgets.count
    }
    else if tableView == self.tableview2{
        return 1
            //SavingsDataModel.savings.count
    }
   else{
    return 2
    }*/


func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String?{
    //reload data?
    if (tableView == self.tableview1){
    return "Budgets"
    }
    else{
        return "Savings"
    }
}

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

    var rowCount = 0
    if (tableView == self.tableview1) {
        rowCount = BudgetDataModel.budgets.count
    }
    if (tableView == self.tableview2) {
        rowCount = SavingsDataModel.savings.count
    }
    return rowCount


    // #warning Incomplete implementation, return the number of rows



func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
   //Table view cells are reused and should be dequeued using a cell identifier.

    if (tableView == self.tableview1){
        let cellIdentifier = "AccountsTableViewCell"
        let cell = self.tableview1.dequeueReusableCell(withIdentifier: cellIdentifier, for: indexPath) as! AccountsTableViewCell

        let budget = BudgetDataModel.budgets[(indexPath as NSIndexPath).row]

        cell.nameLabel.text = budget.name
        cell.amountLabel.text = ("£\(BudgetDataModel.returnTrueValue(number: budget.amount))")
        cell.backgroundColor = UIColor(white: 1, alpha: 0.5)
        return cell
    }
        //Doesn't go into this if statement below
    else {
    //(tableView == self.tableview2)
        let cellIdentifier2 = "SavingsTableViewCell"
        let cell = self.tableview2.dequeueReusableCell(withIdentifier: cellIdentifier2, for: indexPath) as! SavingsTableViewCell

        let saving = SavingsDataModel.savings[(indexPath as NSIndexPath).row]

        cell.savingsnameLabel.text = saving.savingname
        cell.savingsamountLabel.text = ("£\(BudgetDataModel.returnTrueValue(number: saving.savingamount))")
        cell.backgroundColor = UIColor(white: 1, alpha: 0.5)
        return cell
     }
    //return cell
}
   /* else { preconditionFailure ("unexpected cell type") }
}*/


// Override to support conditional editing of the table view.
func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
    // Return false if you do not want the specified item to be editable.
    return true
}

// Override to support editing the table view.
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
    if editingStyle == .delete {
        if (tableView == self.tableview1){
            // Delete the row from the data source
            BudgetDataModel.budgets.remove(at: indexPath.row)
            BudgetDataModel.saveBudgets()
            BudgetDataModel.calculateTotalStandings()
            totalLabel.text = ("Total Current Standings = £\(BudgetDataModel.returnTrueValue(number:BudgetDataModel.total))")
           // self.tableview.reloadData()
            tableView.deleteRows(at: [indexPath], with: .fade)

        }
        else if (tableView == self.tableview2){
            // Delete the row from the data source
            SavingsDataModel.savings.remove(at: indexPath.row)
            SavingsDataModel.saveSavings()
            //implement   BudgetDataModel.calculateTotalStandings()
            //implement   totalLabel.text = ("Total Current Standings = £\(BudgetDataModel.returnTrueValue(number:BudgetDataModel.total))")
            //self.tableview2.reloadData()
            tableView.deleteRows(at: [indexPath], with: .fade)

        }
    } else if editingStyle == .insert {
        // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
    }    
}



// Override to support rearranging the table view.
func tableView(_ tableView: UITableView, moveRowAt fromIndexPath: IndexPath, to: IndexPath) {

}


/*
// Override to support conditional rearranging of the table view.
override func tableView(_ tableView: UITableView, canMoveRowAt indexPath: IndexPath) -> Bool {
    // Return false if you do not want the item to be re-orderable.
    return true
}
*/



// MARK: - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "ShowDetail"{
        let budgetDetailViewController = segue.destination as! BudgetViewController
        //Get the cell that generated this segue.
        if let selectedBudgetCell = sender as? AccountsTableViewCell {
            let indexPath = tableview1.indexPath(for: selectedBudgetCell)!
            let selectedBudget = BudgetDataModel.budgets[indexPath.row]
            budgetDetailViewController.budget = selectedBudget
        }
    }
    else if segue.identifier == "AddItem"{
        //self.tableview.reloadData()
        print("Adding new budget.")
    }
    else if segue.identifier == "ShowSavings"{
            let savingDetailViewController = segue.destination as! SavingsViewController
            //Get the cell that generated this segue.
            if let selectedSavingsCell = sender as? SavingsTableViewCell {
                let indexPath = tableview2.indexPath(for: selectedSavingsCell)!
                let selectedSavings = SavingsDataModel.savings[indexPath.row]
                savingDetailViewController.saving = selectedSavings
            }
    }
    else if segue.identifier == "AddSaving"{
        //self.tableview2.reloadData()
        print ("Adding new saving.")
    }
}

//MARK: Actions

@IBAction func unwindToBudgetList(_ sender: UIStoryboardSegue){
    if let sourceViewController = sender.source as? BudgetViewController, let budget = sourceViewController.budget {
        if let selectedIndexPath = tableview1.indexPathForSelectedRow{
            //Update an existing budget.
            BudgetDataModel.budgets[selectedIndexPath.row] = budget
            self.tableview1.reloadRows(at: [selectedIndexPath], with: .none)
        }
        else{
                //Add a new budget
                let newIndexPath = IndexPath(row:BudgetDataModel.budgets.count, section: 0)
                BudgetDataModel.budgets.append(budget)
                self.tableview1.insertRows(at: [newIndexPath as IndexPath], with: .bottom)
            }
        //Save the budgets.
        BudgetDataModel.saveBudgets()
        BudgetDataModel.calculateTotalStandings()
        totalLabel.text = ("Total Current Standings = £\(BudgetDataModel.returnTrueValue(number: BudgetDataModel.total))")

    }
}

@IBAction func unwindtoSavingsList(_ sender: UIStoryboardSegue){
    if let sourceViewController = sender.source as? SavingsViewController, let savings = sourceViewController.saving {
        if let selectedIndexPath = tableview2.indexPathForSelectedRow{
            //Update an existing budget.
            SavingsDataModel.savings[selectedIndexPath.row] = savings
            self.tableview2.reloadRows(at: [selectedIndexPath], with: .none)
        }
        else{
            //Add a new saving
            let newIndexPath = IndexPath(row:SavingsDataModel.savings.count, section: 0)
            SavingsDataModel.savings.append(savings)
            self.tableview2.insertRows(at: [newIndexPath as IndexPath], with: .bottom)
        }
        //Save the budgets.
        SavingsDataModel.saveSavings()
        //implement    SavingsDataModel.calculateTotalStandings()
        //    totalLabel.text = ("Total Current Standings = £\(BudgetDataModel.returnTrueValue(number: BudgetDataModel.total))")

    }
}

Answer 1

我建议使用像这样的ContainerViews单独添加它们：

这样可以更轻松地将代码保存在单独的ViewControllers中，并使您的应用程序可以访问。

Answer 2

建议在视图中使用标准VC而不是TVC和2个tableviews。将每个连接到VC作为插座。将协议UITableViewDelegate，UITableViewDataSource添加到VC。然后，在IB中，控制从每个tableview拖动到VC头中最左边的图标，并连接Delegate和DataSource。最后，选择每个TableView并为其指定一个Tag值，以便在Tableview方法中区分它们。

Answer 3

不幸的是，在我的情况下，这是由于我的约束，因为我已将它们放入堆栈视图，但堆栈视图未设置为正确分发。所以我需要在故事板中修改该设置。然后两者都出现并按预期正确。

一个UIView Swift中的多个TableView - 如何显示两者

3 个答案: