Swift - UITableView didSelectRowAtIndexPath & didDeselectRowAtIndexPath Add & Remove indexPath IDs

Question

This is the code:

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    let selectedItem = items.objectAtIndex(indexPa         


        

Answer 1

You could do this pretty simply by adding a Dictionary property to your table view controller:

class ViewController : UITableViewController {
    var selectedItems: [String: Bool] = [:]

    // ...

    func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
        let selectedItem = items.objectAtIndex(indexPath.row) as String
        let itemId = selectedItem.componentsSeparatedByString("$%^")
        // add to self.selectedItems
        selectedItems[itemId[1]] = true
    }

    func tableView(tableView: UITableView, didDeselectRowAtIndexPath indexPath: NSIndexPath) {
        let selectedItem = items.objectAtIndex(indexPath.row) as String
        let itemId = selectedItem.componentsSeparatedByString("$%^")
        // remove from self.selectedItems
        selectedItems[itemId[1]] = nil
    }

    // can access the items as self.selectedItems.keys
    func doSomething() {
        for item in selectedItems.keys {
            println(item)
        }
    }
}