Add cell to UITableView if textfield of previous cell is filled in - ios

Question

I have a UITableView in my ViewController. Every cell contains a textfield where someone can enter new text (a to do list). Now, I want to add a new cell, which already contains a new textfield, only if the textfield of the previous cell contains text.
Currently I use a UIButton to add a new cell and this works and resizes the table view so all cells are visible, but I want this to be automated after filling in the previous cell so it becomes more user friendly.
This is what my Storyboard looks like.
And this is the code I currently use to add a new row:
#IBAction func btnAddRow_TouchUpInside(_ sender: Any) {
toDoTableView.beginUpdates()
amountCells.append("")
self.toDoTableView.insertRows(at: [IndexPath.init(row: self.amountCells.count - 1, section: 0)] , with: .automatic)
toDoTableView.endUpdates()
tblHeight.constant = toDoTableView.contentSize.height
}
Any idea on how I can accomplish this? Thanks in advance.
EDIT: I have tried to use EditingDidEnd
class TextFieldsCell: UITableViewCell {
#IBOutlet weak var txtToDo: UITextField!
#IBAction func txtToDo_EditingDidEnd(_ sender: Any) {
if(!(txtToDo.text?.isEmpty)! {
print("Insert Code to Add New Row")
}
}
}
When I do this, I cannot access the toDoTableView from my ViewController. Another issue this might result in is that when there already are 5 rows and the first one is simply edited, another row will insert while I would not want that.

Answer 1

You can check, whether textfield is empty or not in viewController itself. You just confirm the delegate for textfield from storyboard and in cellForRowAt and give the tag to that text field
e.g,
cell.yourTextField.delegate = self
cell.yourTextField.tag = indexPath.row
and check the textfield is empty or not in textField delegate method. Create object of cell in method like
func textFieldDidEndEditing(_ textField: UITextField) {
rowBeingEditedInt = textField.tag
let indexPath = IndexPath(row:rowBeingEdited! , section:0 )
let cell = yourTableView.cellForRow(at: indexPath) as! yourTableViewCell
// check cell.yourtextField.text isempty and do your condition
}

Answer 2

Add this to you textfield delegate and Replace tableview with your tableview name
func textFieldDidEndEditing(textField: UITextField!){
var cell: UITableViewCell = textField.superview.superview as UITableViewCell
var table: UITableView = cell.superview as UITableView
let textFieldIndexPath = table.indexPathForCell(cell)
if textFieldIndexPath.row == (yourdataArray.count - 1)
{
print("came to last row")
if ((textField.text?.count)! > 0){
print("text available")
toDoTableView.beginUpdates()
amountCells.append("")
self.toDoTableView.insertRows(at: [IndexPath.init(row:
self.amountCells.count - 1, section: 0)] , with: .automatic)
toDoTableView.endUpdates()
tblHeight.constant = toDoTableView.contentSize.height
}
}
}

Answer 3

Fixed it eventually by combining answers from #Mauli and #Vicky_Vignesh / #Kuldeep.
func textFieldDidEndEditing(_ textField: UITextField) {
let rowBeingEditedInt = textField.tag
let indexPath = IndexPath(row:rowBeingEditedInt , section:0 )
let cell = toDoTableView.cellForRow(at: indexPath) as! TextFieldsCell
let table: UITableView = cell.superview as! UITableView
let textFieldIndexPath = table.indexPath(for: cell)
if textFieldIndexPath?.row == (amountCells.count - 1) {
if(!(cell.txtToDo.text?.isEmpty)!) {
toDoTableView.beginUpdates()
amountCells.append("")
self.toDoTableView.insertRows(at: [IndexPath.init(row: self.amountCells.count - 1, section: 0)] , with: .automatic)
toDoTableView.endUpdates()
tblHeight.constant = toDoTableView.contentSize.height
}
}
}
Thanks guys! Much appreciated.

Answer 4

You can try this.
In cellForRowAt method set UITableViewCell textField delegate first.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell:TableViewCell = self.tblvw.dequeueReusableCell(withIdentifier: "TableViewCell", for: indexPath) as! TableViewCell
cell.txtField.delegate = self
cell.txtField.tag = indexPath.row
cell.txtField?.text = amountCells[indexPath.row]
return cell
}
In textFieldDidEndEditing you just need to check below and based on that you perform your further task.
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
return textField.resignFirstResponder()
}
func textFieldDidEndEditing(_ textField: UITextField) {
if textField.text?.count == 0 || textField.tag != self.amountCells.count - 1 {
}
else {
self.tblvw.beginUpdates()
amountCells.append("")
self.tblvw.insertRows(at: [IndexPath.init(row: self.amountCells.count - 1, section: 0)] , with: .automatic)
self.tblvw.endUpdates()
}
}