Swift: hot to detect editing by user has stopped in a UITextView

Question

I have a table view where two cells have UITextView into which the user can enter long data. Following some answers here in Stackoverflow, I implemented a protocol/delegate to detect when the user has finished entering the data which then will be saved in a global dictionary:

class DetailsNewTaskViewController: UITableViewController, TextViewCellDelegate {

var cellData:[String:String] = [:]

 func controllerView(controller: UITableViewCell, textViewDidEndEditing: String, atIndex:Int) {

        switch(atIndex) {
            case 0:
                self.cellData["titolo"] = (controller as! LittleTextCell).textView.text
                break
            case 1:
                self.cellData["oggetto"] = (controller as! BigTextCell).textView.text
                break
            default:
                break
        }
 }

and this is the relative custom cell class:

class LittleTextCell: UITableViewCell, UITextViewDelegate {
  @IBOutlet weak var label : UILabel!
  @IBOutlet weak var textView : UITextView!
  var delegate:TextViewCellDelegate?
  var rowIndex:Int?

  func textViewDidEndEditing(textView: UITextView) {
    delegate?.controllerView(self, textViewDidEndEditing: textView.text, atIndex: rowIndex!)
  }
}

where the delegate for textView is the class itself.

And this is a screenshot of the application:

The "problem" is that only AFTER the user taps another cell/field then the text is stored in the global dictionary. What about if the user taps "Fine" button (to save data) without having touched another field after he's finished entering the text? That a fatal nil error is raised. So I would like to know if there is a way to detect that the user has stopped typing in even if he's still inside that cell so that the content is always stored. Is it possible? Is there a particular method to implement?

UPDATE: the function associated to "Fine" button:

func saveTask(sender:UIButton!) {

    self.dateFormatter.dateFormat = "yyyy-MM-dd"

    var taskToSave = Task(id: -1,
                          titolo: self.cellData["titolo"]!,
                          oggetto: self.cellData["oggetto"]!,
                          check_mail: self.cellData["check_mail"]!.toBool()!,
                          id_progetto: self.projects[self.cellData["progetto_nome"]!]!.id,
                          progetto_nome: nil,
                          assegnato_a: nil,
                          id_assegnato_a: self.users[self.cellData["assegnato_a"]!]!.id,
                          richiesto_da: nil,
                          id_richiesto_da: self.users[self.cellData["richiesto_da"]!]!.id,
                          priorita: self.cellData["priorita"]!,
                          termine_consegna: self.dateFormatter.dateFromString(self.cellData["termine_consegna"]!)!,
                          stato: self.cellData["stato"]!)

      self.taskService.addTaskService(taskToSave) {
        (response: String) in

        if ((response.rangeOfString("Could not connect to the server.")) != nil) {
            dispatch_async(dispatch_get_main_queue()) {
                self.alertView.title = "Operazione fallita!"
                self.alertView.message = "Impossibile connettersi al server. \n Riprovare."
                self.alertView.delegate = self
                self.alertView.addButtonWithTitle("OK")
                self.alertView.show()
            }
            println(response)
        }

        else {
            if ((response.rangeOfString("status code: 200")) != nil) {
                dispatch_async(dispatch_get_main_queue()) {
                    self.alertView.title = "Operazione eseguita!"
                    self.alertView.message = "Task creato correttamente"
                    self.alertView.delegate = self
                    self.alertView.addButtonWithTitle("OK")
                    self.alertView.show()

                    self.navigationController?.popViewControllerAnimated(true)
                }
            }

            else {
                println(response)
            }

        }
    }
}

you can set your dictionary data manually when user pressed "fine" button — Özgür Ersil, Sep 17 '15 at 14:19
yes I had thought to that but...how can I get the cell inside that method? — SagittariusA, Sep 17 '15 at 14:22
you can get it with tableView:cellForRowAtIndexPath(tag), it returns cell — Özgür Ersil, Sep 17 '15 at 14:24
Ok, so I would need to assign a tag to each cell before, right? Up to now I haven't used tag... — SagittariusA, Sep 17 '15 at 14:27
tag can be a indexPath here, can you share also your fine button clicked function? — Özgür Ersil, Sep 17 '15 at 14:28

Umair_UAS · Answer 1 · 2015-09-17T15:22:37.060

1

just use this line on the top in the method fine in your controller

self._tableView.superview?.endEditing(true);

I was facing the same problem , my textfields in cell and i want to check all the fields in controller.When i get my data so last data is not up to date because after last data, i click on the button not on the text field. So i found the solution. I wrote this line in my method (in your case, this line should be in fine method) before getting my dictionary and after that i had updated data. Thanks

edited Sep 17 '15 at 15:22

answered Sep 17 '15 at 14:51

Umair_UAS

113
1
10

Thank you mate, very kind of yours!I really hope is that simple... I'll try as soon as I have finished my code refactoring! – SagittariusA Sep 17 '15 at 15:30
Ok . If it will not work then please reply me here. Thanks (Y) – Umair_UAS Sep 17 '15 at 15:37

score 1 · Answer 2 · answered Sep 17 '15 at 14:54

define global selectedIndexPath

var selectedIndexPath:Int = 0

set it to selected indexPath

 func controllerView(controller: UITableViewCell, textViewDidEndEditing: String, atIndex:Int) {
        selectedIndexPath = indexPath
        switch(atIndex) {
            case 0:
                self.cellData["titolo"] = (controller as! LittleTextCell).textView.text
                break
            case 1:
                self.cellData["oggetto"] = (controller as! BigTextCell).textView.text
                break
            default:
                break
        }
 }

In saveTask function get cell with cellForRowAtIndexPath

 func saveTask(sender:UIButton!) {

        let cell = tableView.cellForRowAtIndexPath(selectedIndexPath)
        self.cellData["titolo"] = cell.LittleTextCell.textView.text
        self.cellData["oggetto"] = cell.BigTextCell.textView.text
  }

PS. selectedIndexPath = indexPath should be when user start to edit the text for sure — Özgür Ersil, Sep 17 '15 at 14:57
Thank you from heart mate! I'll try as soon as I have finished my code refactoring! — SagittariusA, Sep 17 '15 at 15:30

Swift: hot to detect editing by user has stopped in a UITextView

2 Answers2