UITableViewCell not showing detailTextLabel.text - Swift

问题

The detail (subtitle) text does not appear. The data are available, though, because when a println() call is added, it prints Optional("data") to the console with the expected data. In the storyboard, the UITableViewController is set to the proper class, the Table View Cell Style is set to 'Subtitle', and the reuse identifier is set to 'cell'. How can I get the subtitle information to display?

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

    var cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as UITableViewCell

    dispatch_async(dispatch_get_main_queue(), { () -> Void in

        cell.textLabel.text = self.myArray[indexPath.row]["title"] as? String
        cell.detailTextLabel?.text = self.myArray[indexPath.row]["subtitle"] as? String

        println(self.myArray[indexPath.row]["subtitle"] as? String)
        // The expected data appear in the console, but not in the iOS simulator's table view cell.

    })
    return cell
}

回答1:

Same issue here (from what I've read, perhaps a bug in iOS 8?), this is how we worked around it:

Delete the prototype cell from your storyboard
Remove this line:

var cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as UITableViewCell

Replace with these lines of code:

let cellIdentifier = "Cell"

var cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier) as? UITableViewCell
if cell == nil {
    cell = UITableViewCell(style: UITableViewCellStyle.Value2, reuseIdentifier: cellIdentifier)
}

Update for Swift 3.1

let cellIdentifier = "Cell"

var cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier)
if cell == nil {
    cell = UITableViewCell(style: UITableViewCellStyle.value2, reuseIdentifier: cellIdentifier)
}

Update for Swift 4.2 - Simplified

let cell = UITableViewCell(style: UITableViewCell.CellStyle.value2, reuseIdentifier: "cellId")

回答2:

Your code looks fine. Just goto the storyboard and select the cell of your tableview -> Now goto Attributes Inspector and choose the style to Subtitle.

Follow this according to the below screenshot.

Hope it helped..

回答3:

If you still want to use prototype cell from your storyboard, select the TableViewcell style as Subtitle. it will work.

回答4:

If doing so programmatically without cells in interface builder this code works like a charm in Swift 2.0+

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.

    yourTableView.delegate = self
    yourTableView.dataSource = self
    yourTableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: "subtitleCell")

}

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

func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell! {
    let cell: UITableViewCell = yourTableView.dequeueReusableCellWithIdentifier("subtitleCell", forIndexPath: indexPath) as UITableViewCell

    cell.textLabel?.text = "the text you want on main title"
    cell.detailTextLabel?.text = "the text you want on subtitle"

    return cell
}

回答5:

Try this it work for me (swift 5)

let cell = UITableViewCell(style: .value1, reuseIdentifier: "cellId")
cell.textLabel.text = "Déconnexion"
cell.imageView.image = UIImage(named: "imageName")

Objective c :

UITableViewCell *cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:@"cellId"];

回答6:

If you are setting the text to nil somewhere when you try to set it to a non-nil value the actual view that contains the text will be missing. This was introduced in iOS8. Try setting to an empty space @" " character instead.

See this: Subtitles of UITableViewCell won't update

回答7:

For what it's worth: I had the problem of detail not appearing. That was because I had registered the tableView cell, which I should not have done as the cell prototype was defined directly in storyboard.

回答8:

Here is how it works for swift 5, to get a subtitle using detailtextlabel, using a UITableView object within a view controller, if you are missing any of these, it will not work and will probably crash.

class ViewController: UIViewController, UITableViewDelegate,  UITableViewDataSource

In viewDidLoad:

tableView.register(UITableViewCell.self, forCellReuseIdentifier: "subtitleCell")

Delegate Function:

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

    // Fetch a cell of the appropriate type.
    let cell = UITableViewCell(style: .subtitle , reuseIdentifier: "subtitleCell")

    // Configure the cell’s contents.
    cell.textLabel!.text = "Main Cell Text"
    cell.detailTextLabel?.text = "Detail Cell Text"

    return cell
}

来源：https://stackoverflow.com/questions/27221003/uitableviewcell-not-showing-detailtextlabel-text-swift

标签

uitableview

swift

detailtextlabel