CODEWITHSUNDEEP
iosarraysxcodeswiftuitableview
Eliko
Eliko

Reputation: 1137

Update array while editing cell while running the App

I've got a tableView in the ViewController & an array called toDo, in the TableView I've a cell and in the cell I got textView. the textView is editable (The user can change the text in the textView). After the user changes the text - I want the cell to save it to the toDo array, but whenever I reloaddata the text disappears. Here is what I tried:

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell: TableViewCell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath:indexPath) as! TableViewCell
        cell.textField.text = toDo[indexPath.row]
        cell.textField.delegate = self
        return cell
    }

**I have a got a test button that whenever I click it reload data.

Upvotes: 0

Views: 507

Answers (2)

Eppilo
Eppilo

Reputation: 773

I think that the problem is that, whenever the system needs to re-render the cell, the method func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) is called; that happens before your text view has a chance to save its content in the data model. In your case every time you press the button. I assume you save the content of the text field using optional func textFieldDidEndEditing(_ textField: UITextField) delegate method. You can add a println("SAVING") in such method, and a println("RE-RENDERING CELL") in the tableView(...) method and see the what the sequence of events is. Nots sure if this could help, but I would try that.

Upvotes: 0

Abhinav
Abhinav

Reputation: 38142

Try this out - set the tag on the text field and implement textFieldDidEndEditing: to update your model before reloading the table view.

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell: TableViewCell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath:indexPath) as! TableViewCell
    cell.textField.text = toDo[indexPath.row]
    cell.textField.tag = indexPath.row
    cell.textField.delegate = self
    return cell
}

func textFieldDidEndEditing(textField: UITextField) {
    toDo[textField.tag] = textField.text
}

Upvotes: 1

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