How to set a label in a cell of tableview by code? - ios

Question

If I just want to set a label by code, I should write for example like this,
let label = UILabel()
label.frame = CGRect(x:10, y: 10, width:160, height:30)
label.text = "Test"
self.view.addSubview(label)
but if I want to set a label in a cell of tableView, how can I set it?
Thanks!

Answer 1

You should create you a custom class for you cell as such. This adds a label to a cell and uses anchoring system to set constraints on the label to fill the entire cell.
class CustomCell: UITableViewCell {
let label: UILabel = {
let n = UILabel()
n.textColor = UIColor.darkGray
n.textAlignment = .center
n.text = "Testing 123"
n.font = UIFont(name: "Montserrat", size: 30)
return n
}()
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
addSubview(label)
label.translatesAutoresizingMaskIntoConstraints = false
label.leftAnchor.constraint(equalTo: leftAnchor).isActive = true
label.rightAnchor.constraint(equalTo: rightAnchor).isActive = true
label.topAnchor.constraint(equalTo: topAnchor).isActive = true
label.bottomAnchor.constraint(equalTo: bottomAnchor).isActive = true
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
For the ViewController that uses this custom cell, you have to add the below cell registration like such, unless you're using storyboards/interface builder.
class ControllerUsesCell: UITableViewController {
let defaultCellId = "cellId"
override func viewDidLoad() {
super.viewDidLoad()
tableView?.register(CustomCell.self, forCellWithReuseIdentifier: defaultCellId)
}
}

Answer 2

UITableviewCell subclass has textlabel property which you can use
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as UITableViewCell
cell.textLabel?.text = "My Text"
return cell
}
or alternatively you can use custom cell for more control
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "CustomCell", for: indexPath) as! CustomTableViewCell
let label = UILabel()
label.frame = CGRect(x: 10, y: 10, width: 160, height: 30)
label.text = "Test"
cell.contentView.addSubview(label)
return cell
}