Question

使用Swift，我的自定义单元格有4个标签，我想在将新行/单元格添加到tableview时编辑。

在我的应用程序栏中，我有一个添加按钮，它应该将新的单元格/行添加到表视图中，但只有第一个可以工作，当我添加第二个单元格/行时，它会更改并变小

我知道代码显然是错误的，但我似乎无法修复它使用一个名为objects的数组，但我似乎无法将多个字符串添加到要用于的对象中表格视图。

我使用标准的Master Detail模板进行项目，但是根据我的喜好将代码更改为自定义，我遇到了这些问题。

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

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

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

    let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! CustomCell

    //let object = objects[indexPath.row] as! String // NSDate
    //cell.textLabel!.text = object.description

    cell.firstLabel.text = "name"
    cell.secondLabel.text = "bought"
    cell.thirdLabel.text = "18"
    cell.fourthLabel.text = "30"

    return cell
}

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

override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
    if editingStyle == .delete {
        objects.remove(at: indexPath.row)
        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.
    }
}

@objc
func insertNewObject(_ sender: Any) {

    // Adding cell with new added info

    // can not be an array of strings, has to be an array of an array of strings, doesn't it?
    // "tester" is was there from the project template
    let test: String = "tester"
    objects.insert(test, at: 0) // NSDate()

    let indexPath = IndexPath(row: 0, section: 0)
    tableView.insertRows(at: [indexPath], with: .automatic)
}

// MARK: - Segues

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "showDetail" {
        if let indexPath = tableView.indexPathForSelectedRow {
            let object = objects[indexPath.row] as! NSDate
            let controller = (segue.destination as! UINavigationController).topViewController as! DetailViewController
            controller.detailItem = object
            controller.navigationItem.leftBarButtonItem = splitViewController?.displayModeButtonItem
            controller.navigationItem.leftItemsSupplementBackButton = true
        }
    }
}

@IBOutlet var myTableView: UITableView!
var detailViewController: DetailViewController? = nil
var objects = [Any]()

override func viewDidLoad() {
    super.viewDidLoad()

    // Custom Cell
    self.myTableView.dataSource = self
    self.myTableView.delegate = self

    // Do any additional setup after loading the view, typically from a nib.
    navigationItem.leftBarButtonItem = editButtonItem

    let addButton = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(insertNewObject(_:)))
    navigationItem.rightBarButtonItem = addButton
    if let split = splitViewController {
        let controllers = split.viewControllers
        detailViewController = (controllers[controllers.count-1] as! UINavigationController).topViewController as? DetailViewController
    }
}

Answer 1

我认为你应该尝试实现方法tableView（_：heightForRowAt :) - ＆gt; CGFloat的

请尝试返回88.0f并查看差异

Answer 2

根据我们之前的对话尝试这样的事情：

@IBOutlet private weak var tableView: UITableView!

private var objects = [["A1", "A2", "A3", "A4"],["B1", "B2", "B3", "B4"],["C1", "C2", "C3", "C4"],["D1", "D2", "D3", "D4"]]

private func insertNewObject() {

    self.objects.append(["NewString1", "NewString2", "NewString3", "NewString4"])
    self.tableView.reloadData()
}

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return self.objects.count
}

func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
    return 200 // add the height you like
}

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

    let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! CustomCell

    cell.firstLabel.text = objects[indexPath.row][0]
    cell.secondLabel.text = objects[indexPath.row][1]
    cell.thirdLabel.text = objects[indexPath.row][2]
    cell.fourthLabel.text = objects[indexPath.row][3]

    return cell
}

在使用自定义标签创建新行/单元格时遇到问题

2 个答案: