Question 206813 in IOS Swift Question posted in
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Ios swift – load data into UITableViewCell cell

I’m totally new to IOS dev and I’m looking for help on what I’m sure is a simple issue. I’m building a test app to learn loops, code, IBoutlets etc and I have create an app that reads in between 1-5 random names into an array, I now want to read those elements into a table that I have on the same screen. If I try and use a WHILE loop then I get an error that it cannot find Return Cell, if I don’t use a loop then it prints all elements in every cell.

thanks

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view.
    Table.dataSource=self
}
@IBAction func Buttonpressed (){
    GetMoves()
}

func GetMoves() {
    var i=0
    var ArrayMove:String
    ChosenNumber=Int(Field.text!)
    ArrayMove=" "
    while i < ChosenNumber{
        ArrayMove=Moves[i]
        ChosenMoves.append(ArrayMove)
        i+=1
        self.Table.reloadData()
    }
}

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

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    var movestring=" "
    var i=0
  //  while i<ChosenMoves.count{
        let Cell=Table.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! CustomTableViewCell
        i=indexPath.row
        movestring=" "
        movestring=ChosenMoves[i]
        Cell.CellLabel.text=movestring
        i+=1
    
        return Cell
    
    }

I want each array element appears on an individual row in the table.

Tags:

2

Answers


  1. 0

    As you a new to iOS dev please conform to the naming convention that methods and variables start with a lowercase letter. And whitespaces before and after equal signs increase the readability.

    The method cellForRowAt is always called once for each index path. Get the item in the data source array by that index path. And use always the tableView parameter in the method rather than accessing the IBOutlet directly.

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! CustomTableViewCell
    cell.cellLabel.text = chosenMoves[indexPath.row]
    return cell    
}

    Side note: Never call reloadData() multiple times inside a loop. Call it once after the loop

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  2. 0

    I think you are doing mistake while dequeuing cell. You have used Table where as you need to use tableView. I think there is no need of declaring variable i and similarly no need to increment it. Here is the updated method .

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let Cell=Table.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! CustomTableViewCell
    Cell.CellLabel.text = ChosenMoves[indexPath.row]
    return Cell
}

    I removed extra variables. One more point, above method by default gets called on every count. You don’t need to use loop for it.

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