How to pause the code and wait for an answer from UIAlert on Swift using UIAlertController

I got to say I've searched around for the answer in stack overflow, but couldn't find it so that's why I'm asking it...

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• MyProblem:my problem is - I'm making a Pomodoro App, and I let theuser to set the TimeLabel(the time), now if the user is in a session,and he wants to change the time he's able doing that, although if hetries doing that and once he has changed the time and wanna cancelit, the user of-course is able to do that, now the problem is I'mwaiting for the user's answer by using UiAlertController, but amongthat I also use my function that updates the SettingsLabels/Parameters.

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My Code:my update settings function:

//Updating the UserSettings:func updateSettingsLabels(cell: PickerTableViewCell, rowIndex: Int) {    let identifier = cell.reuseIdentifier    switch identifier {    case T.Identifiers.workIntervalID:        workInterval.text = timesDictionary[rowIndex]        self.workIntervalString = timesDictionary[rowIndex] // set string        let myString = workInterval.text!        oldTime = workInterval.text! // setting up the old time        saveTime(labelText: myString)    case T.Identifiers.shortBreakID:        shortBreak.text = timesDictionary[rowIndex]        self.shortBreakString = timesDictionary[rowIndex] // set string        saveShortBreak(breakText: shortBreak.text!)    case T.Identifiers.longBreakTimeID:        longBreakTime.text = timesDictionary[rowIndex]        self.longBreakString = timesDictionary[rowIndex] // set string        saveLongBreak(longBreakText: longBreakString!)    case T.Identifiers.breakAfterIntervalsID: // after how much intervals we will take a long break        longBreakAfter.text = intervalsDictionary[rowIndex]        self.longBreakAfterIntervals = intervalsDictionary[rowIndex] // set string        saveBreakAfterIntervals(breakAfterIntervals: longBreakAfterIntervals!)    case T.Identifiers.dailyIntervalsID: // daily intervals        dailyIntervals.text = intervalsDictionary[rowIndex]        self.dailyIntervalsString = intervalsDictionary[rowIndex] // set string        saveDailyIntervals(dailyIntervals: dailyIntervalsString!)    default:        print("There was a problem with Switch")    }

my UiAlert Function:

func alertTheUser() {    //If we want to print something on the screen, we use UIAlertController:    let alert = UIAlertController(title: "Do you want to aboard this task?", message: "Once you change the time in a middle of a session, you will reset all tasks.", preferredStyle: .alert)    alert.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: { (alertToCancel) in        self.userWantToChangeSettings = false        print("Im being changed!")    }))    alert.addAction(UIAlertAction(title: "Ok", style: .destructive, handler: { (action) in        self.userWantToChangeSettings = true    }))    self.present(alert, animated: true)}

I must inform u guys that I also use UIPicker that lets the user choose the time from optional times, and here's my code for that:

func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int, forCell cell: PickerTableViewCell) {    if self.timerIsOnFire == true {            self.alertTheUser()    }    updateSettingsLabels(cell: cell, rowIndex: row)    self.delegate?.userSettings(interval: self.workIntervalString, shortBreak:self.shortBreakString, longBreak:self.longBreakString, breakAfterIntervals:self.longBreakAfterIntervals,dailyIntervals:self.dailyIntervalsString )    self.view.endEditing(true)}