CODEWITHSUNDEEP
iosswiftuikit
lysov
lysov

Reputation: 160

Swift 3: retrieving text from a UITextField in a custom UITableViewCell

I'm trying to retrieve text from the UITextField in custom cell and assign the value to self.email variable in my view controller. When I make a breakpoint in textFieldDidEndEditing function, I can see that the value of the textField is assigned to self.email as expected, but the variable self.email is nil in @IBAction doneButtonDidPress function.

Question: Why the value of self.email is changed to nil?

extension ViewController: UITextFieldDelegate {

func textFieldDidEndEditing(_ textField: UITextField) {
    if let text = textField.text {
        self.email = text
    }
}

func textFieldShouldReturn(_ textField: UITextField) -> Bool {
    let cell = self.tableView.cellForRow(at: IndexPath(row: 2, section: 0)) as! AboutCell
    cell.textView?.becomeFirstResponder()
    return true
}
}

I'm using UITableViewController, that's how I create cells:

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    switch indexPath.row {
    case 0:
        let cell = tableView.dequeueReusableCell(withIdentifier: "profilePhotoCell")! as! ProfilePhotoCell
        cell.delegate = self
        return cell
    case 1:
        let cell = tableView.dequeueReusableCell(withIdentifier: "textFieldCell")! as! TextFieldCell
        cell.textField.delegate = self
        cell.textLabel?.text = "Email"
        return cell
    default:
        let cell = tableView.dequeueReusableCell(withIdentifier: "aboutCell")! as! AboutCell
        cell.textView.delegate = self
        return cell
    }
}

@IBAction function:

@IBAction func doneButtonDidPress(_ sender: Any) {
    print(self.email) // returns nil
}

Upvotes: 0

Views: 2453

Answers (3)

lysov
lysov

Reputation: 160

The solution is to put self.tableView.endEditing(true) in @IBAction func doneButtonDidPress(_:).

Upvotes: 1

Yuyutsu
Yuyutsu

Reputation: 2527

In cellForRowAtIndexPath assign set tag to you textfield and set UITextfieldDelegate too

Note this is an example for tableview having to textfield Name and RollNo

var txtName:String = ""
var txtRollNo:String = ""


func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
            let YourCell = tableView.dequeueReusableCellWithIdentifier("YourTableViewCellIdentifier") as! YourTableViewCell
            

            YourCell.txtField?.text = itemsData as? String
            YourCell.txtField.delegate = self
            YourCell.txtField.tag = (indexPath.section*10)+indexPath.row
             if(indexPath.section == 0){
                switch indexPath.row {
                case 0:
                    YourCell.txtField.placeholder = "Enter Name "
                    if (self.txtName != ""){
                        YourCell.txtField.text = self.txtName
                    }
                    break;
                case 1:
                    YourCell.txtField.placeholder = "Enter Rollno "
                    if (self.txtRollNo != ""){
                        YourCell.txtField.text = self.txtRollNo
                    }
                    break;
                }
             }
    return YourCell
}
func textFieldDidBeginEditing(textField: UITextField) {
     print(textField.tag)
     if textField.tag == 0 {
          self.txtName = textField.text
     }else if textField.tag == 1{
          self.txtRollNo = textField.text
     }
}

func textFieldDidEndEditing(textField: UITextField) {
     print(textField.tag)
     if textField.tag == 0 {
          self.txtName = textField.text
     }else if textField.tag == 1{
          self.txtRollNo = textField.text
     }
}

func printValue(){
    print("\(self.txtName)")
    print("\(self.txtRollNo)")
}

Hope this might help you.

Upvotes: 0

Seema Nair
Seema Nair

Reputation: 165

You are not refreshing the datasource of your tableview, in didendediting. Your tableview datasource will be an array. You need to assign the textfield value to the array at the corresponding index

In textFieldDidEndEditing, 

   var myCell:UITableViewCell

   var indexPath: NSIndexPath

   myCell = (textField.superview?.superview as! UITableViewCell)

   indexPath = table_view.indexPathForRowAtPoint(myCell.center)!

At this index path row , assign the value of the textfield to your tableview datasource(array)

   self.tableview_list.objectAtIndex(indexPath.row).setObject(self.email, forKey: "XYZ")

And also reload the tableview at that particular index only.

Upvotes: 0

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