How to save label content - swift

Question

in my TodoList I have a label that when add something in the Todo, show the date the day.
How can I save it? cause when I open my app I have always the date and time of when I open it.
Here is the code of the label with the date:
class TableViewCell: UITableViewCell {
#IBOutlet weak var Data: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
Data.text = String(describing: DateFormatter())
UserDefaults.standard.string(forKey: "Data")
let dataFormatter = DateFormatter()
dataFormatter.dateFormat = "dd/MM/yyyy H:mm a"
Data.text = dataFormatter.string(from: .init())
}
}

Answer 1

You can use UserDefaults.
UserDefaults.standard.set(value: Any?, forKey: String)
So, whenever you want to save you could do
UserDefaults.standard.set(value: YourValue, forKey: "Data")

Answer 2

First create global lazy variable for your DateFormatter since you don't want to create new one every time you need to set text.
lazy var dateFormatter: DateFormatter = {
let formatter = DateFormatter()
formatter.dateFormat = "dd/MM/yyyy H:mm a"
return formatter
}()
then you can set text of label like this (rename outlet for UILabel to start with small capital letter)
data.text = dateFormatter.string(from: yourDate)
Now for manipulating with Date object with UserDefaults
Saving:
UserDefaults.standard.set(yourDate, forKey: "date")
Getting:
if let date = UserDefaults.standard.object(forKey: "date") as? Date {
... // here you can use `date` of type `Date`
}
One advice at the end. Since you're using UITableViewCell, I suppose that you have more then one Date object saved in UserDefaults. I would recommend you to start using some database like Core Data or Realm.

Answer 3

Move code inside setSelected to awakeFromNib
also i expect this UserDefaults.standard.string(forKey: "Data") to return a value , so someWhere you should have UserDefaults.standard.set(value:"----Any value", forKey: "Data")
guard let res = UserDefaults.standard.object(forKey: "Data") as? Date else { return }
let dataFormatter = DateFormatter()
dataFormatter.dateFormat = "dd/MM/yyyy H:mm a"
Data.text = dataFormatter.string(from:res)
For sett
UserDefaults.standard.set(Date(), forKey: "Data")
#IBOutlet weak var Data: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
UserDefaults.standard.set(Date(), forKey: "Data") // this line need to be placed where you need to store the date
guard let storedDate = UserDefaults.standard.object(forKey: "Data") as? Date else { return } // here you read the stored date
let dataFormatter = DateFormatter()
dataFormatter.dateFormat = "dd/MM/yy H:mm a"
Data.text = dataFormatter.string(from:storedDate)
}