使用if语句更改单元格中标签的文本颜色

Question

I'm trying to change the color of a label (or labels) in a cell if the value of alarmLevel != "0". This is what I have so far and it's changing the color of the cell.locationLabel in all of the cells instead of just the ones that satisfy the if statement. I'm sure its something to do with the indexPath but I cant figure it out.

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = myTableView.dequeueReusableCell(withIdentifier: cellId, for: indexPath) as! ViewControllerTableViewCell
    cell.locationLabel.text = eventsList[indexPath.row].location
    cell.eventTimeLabel.text = eventsList[indexPath.row].dateTime
    cell.eventTypeLabel.text = eventsList[indexPath.row].agencyEventSubtypeCode
    cell.agencyIdLabel.text = eventsList[indexPath.row].agencyId

    if alarmLevel != "0" {
      cell.locationLabel.textColor = UIColor.red
    } else {
      cell.locationLabel.textColor = UIColor.black
    }
    return cell
}

Answer 1

You need to add the alarmLevel as an integer variable to the events list array type. And change this integer value according to your need for each event item in the array eventsList

class Events {
    var location = String()
    var dateTime = String()
    var agencyEventSubtypeCode = Int()
    var agencyId = Int()
    var alarmLevel = Int() //Need this here
}

var eventsList = [Events]()

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

let cell = myTableView.dequeueReusableCell(withIdentifier: cellId, for: indexPath) as! ViewControllerTableViewCell
cell.locationLabel.text = eventsList[indexPath.row].location
cell.eventTimeLabel.text = eventsList[indexPath.row].dateTime
cell.eventTypeLabel.text = ("\(eventsList[indexPath.row].agencyEventSubtypeCode)")
cell.agencyIdLabel.text = ("\(eventsList[indexPath.row].agencyId)")

if eventsList[indexPath.row].alarmLevel != 0 {
  cell.locationLabel.textColor = UIColor.red
} else {
  cell.locationLabel.textColor = UIColor.black
}
return cell
}