I have an array of strings and I am populating a table view with the array data. I want the table view to display 1 in the first row, 2 in the second row, 3 in the third row. I have done this before but it is not working now. Every time I run the app, it displays the number of elements in the array in every row. What am I doing wrong?
func numPick() -> Int {
var num: Int = 0
for _ in myRoster! {
num+=1
}
return num
}I have an array of strings
I gather it is myRoster ?
Please, show how you use it in tableView to populate cells.
If I understand correctly what you want, what you should simply do:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "CellID", for: indexPath)
// Configure the cell...
cell.textLabel!.text = "\(indexPath.row+1)" + myRoster![indexPath.row]
return cell
}I don't understand what numPick() is used for.
The way you compute, it just returns the number of items in myRoster (you add 1 to num for each item in myRoster!), so necessarily the same value in all cases.
for _ in myRoster! {
num+=1
}maybe what you intended was to count till a certain position that you would pass as argument ?
but that would be equivalent to return the input parameter (may be incremented by 1). That would also be totally useless.
I have an array of strings
I gather it is myRoster ?
Please, show how you use it in tableView to populate cells.
If I understand correctly what you want, what you should simply do:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "CellID", for: indexPath)
// Configure the cell...
cell.textLabel!.text = "\(indexPath.row+1)" + myRoster![indexPath.row]
return cell
}I don't understand what numPick() is used for.
The way you compute, it just returns the number of items in myRoster (you add 1 to num for each item in myRoster!), so necessarily the same value in all cases.
for _ in myRoster! {
num+=1
}maybe what you intended was to count till a certain position that you would pass as argument ?
but that would be equivalent to return the input parameter (may be incremented by 1). That would also be totally useless.
Yes, it worked by + 1 to indexPath.row in cellForRowAt.
So I don't have to run a for loop to add 1 to the row every time?
I used numPick() as a function to hold the integer for the number of row.
This is what my table view looks like:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath as IndexPath)
cell.textLabel?.text = "\(numPick())" + (myRoster?[indexPath.row])!
cell.textLabel?.adjustsFontSizeToFitWidth = true
cell.textLabel?.font = UIFont.systemFont(ofSize: 22)
return cell
}So I don't have to run a for loop to add 1 to the row every time?
No, you don't need.
And in could not work that way: numPick() has no information on which row it applies to. So, it could not return a value speific to this row.
Wish you good continuation.