Remove selected index from array

Asked Dec 19 '17 at 11:50

Active Dec 19 '17 at 12:08

Viewed 126 times

I figured out how to put in array of selected elements when i click on row and i see .checkmark. And if i click the second time i see checkmark .none, but how i can remove selected elements from my array on which i clicked the second time?

override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    let cell = tableView.cellForRow(at: indexPath)
    if indexPath.section == 0 {
        if (cell?.accessoryType == .checkmark) {
            cell?.accessoryType = .none
            print("deselect - \(titleOptions[indexPath.row])")

            // how to remove selectedIndex from array???
            selectedIndexArray....

            print("\(selectedIndexArray)")
        } else {
            cell?.accessoryType = .checkmark
            print("select - \(titleOptions[indexPath.row])")
            selectedIndexArray.append(titleOptions[indexPath.row])
            print("\(selectedIndexArray)")
        }
    }
}

asked Dec 19 '17 at 11:50

Дмитрий Деникаев

Try `selectedIndexArray.remove(at: indexPath.row)` – Priya Dec 19 '17 at 11:53
@Priya App will crash with that code !! , if he have only 3 item in array and press uncheck on 4th cell – Prashant Tukadiya Dec 19 '17 at 11:54
You need to manage dictionary instead of array , key would be indexPath.row or Other unique id to identify cell , and value is True or false – Prashant Tukadiya Dec 19 '17 at 11:56
@PrashantTukadiya yes, app is crash – Дмитрий Деникаев Dec 19 '17 at 12:03
@ДмитрийДеникаев Try Dictionary instead of array !! like self.dict[indexPath.row] = true / false – Prashant Tukadiya Dec 19 '17 at 12:13
@PrashantTukadiya a little don't understand :( can explain for dummies? :) – Дмитрий Деникаев Dec 19 '17 at 12:28
You have to delete that object and it can be any index path so to do that you have to do something like this let object = selectedIndexArray[indexPath.row]; if let index = selectedIndexArray.index(of: object) { selectedIndexArray.remove(at: index); } – Vikky Dec 19 '17 at 12:31
1) `var dict:[IndexPath:Bool] = [:]` – Prashant Tukadiya Dec 19 '17 at 12:40
2) In cellForRow `if let selected = dict[indexPath],selected == true { //check mark } else { // None }` – Prashant Tukadiya Dec 19 '17 at 12:41
3) In DidSelect row `if let selected = dict[indexPath],selected == true { //check mark dict[indexPath] = false } else { // None dict[indexPath] = true }` – Prashant Tukadiya Dec 19 '17 at 12:41
@PrashantTukadiya i will try, thanks – Дмитрий Деникаев Dec 19 '17 at 12:53

Remove selected index from array

0 Answers0