Question

我无法让自定义单元格显示在表格视图中。我确保在情节提要中设置单元重用标识符，并将IBOutlet连接到单元标签，但仅显示默认单元，而不显示自定义单元。这是我的表视图控制器的代码，而在表视图单元格的下面：

class HoursTableViewController: UITableViewController {

    @IBOutlet var hourDonationSegmentedButton: UISegmentedControl!
    @IBOutlet var addEntryButton: UIButton!
    @IBOutlet var editEntryButton: UIButton!

    var hoursEntries = [HoursEntry]()
    var dummyData : [HoursEntryTest] = [HoursEntryTest(hours: 1, minutes: 30, entryTitle: "title", organization: "unicef", content: "content", date: Date(timeIntervalSinceNow: 0))]
    let cellReuseIdentifier = "HoursTableViewCell"

    override func viewDidLoad() {
        super.viewDidLoad()
        prepareTableView()
    }

    func prepareTableView() {
        self.tableView.dataSource = self
        self.tableView.delegate = self
        self.tableView.register(HoursTableViewCell.self, forCellReuseIdentifier: cellReuseIdentifier)
    }


}

    extension HoursTableViewController {

        override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
            return dummyData.count

        }

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

            var cell : HoursTableViewCell = self.tableView.dequeueReusableCell(withIdentifier: cellReuseIdentifier, for: indexPath) as! HoursTableViewCell
            let hoursEntry = dummyData[indexPath.row]
            cell = setCellTextFromHoursEntry(currentCell: cell, hoursEntry: hoursEntry)

            return cell
        }

        override func numberOfSections(in tableView: UITableView) -> Int {
            return 1
        }

        func setCellTextFromHoursEntry(currentCell: HoursTableViewCell, hoursEntry: HoursEntryTest) -> HoursTableViewCell {
            currentCell.entryTitleLabel!.text = hoursEntry.entryTitle;
            currentCell.organizationLabel!.text = hoursEntry.organization;
            currentCell.dateLabel!.text = "placeholder date"
            currentCell.hourLabel!.text = String(hoursEntry.hours);
            currentCell.minuteLabel!.text = String(hoursEntry.minutes);

            return currentCell;
        }
}

class HoursTableViewCell : UITableViewCell {

    @IBOutlet var entryTitleLabel: UILabel! = {
        let label = UILabel()
        return label
    }()

    @IBOutlet var organizationLabel: UILabel! = {
        let label = UILabel()
        return label
    }()

    @IBOutlet var dateLabel: UILabel! = {
        let label = UILabel()
        return label
    }()

    @IBOutlet var hourLabel: UILabel! = {
        let label = UILabel()
        return label
    }()

    @IBOutlet var minuteLabel: UILabel! = {
        let label = UILabel()
        return label
    }()

感谢您的帮助！

Answer 1

如果您从Nib文件创建自定义单元格，则应采用以下方式定义该单元格：

tableView.register(UINib(nibName: "HoursTableViewCell", bundle: nil), forCellReuseIdentifier: cellReuseIdentifier)

另一点：

如果您将nib文件用于自定义单元并设置IBOutlet，则无需将元素定义为

@IBOutlet var entryTitleLabel: UILabel! = {
        let label = UILabel()
        return label
    }()

您只需要设置@IBOutlet var entryTitleLabel: UILabel!

表格视图中的自定义单元格未显示？

1 个答案: