pass text from selected tableView cell.row to fill textbox xcode - ios

Question

I have a tableView that allows users to make multiple selections from an array of data,
When the user clicks done, I would like the selected text to be then transferred over to another tableViews textView
Is there a way to transfer over the selected text and have the text separated by a , ?
I am coding programmatically.
var checked = [Int]()
var items = [String]()
var selectedItems = [String]()
#objc func done() {
let hud = JGProgressHUD(style: .dark)
hud.textLabel.text = "Saving!"
hud.show(in: view)
dismiss(animated: true, completion: nil)
hud.dismiss()
let aCell = aboutCell(style: .default, reuseIdentifier: nil)
aCell.textField3.text = selectedItems.joined(separator: ",")
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if tableView.cellForRow(at: indexPath)?.accessoryType == UITableViewCell.AccessoryType.checkmark {
tableView.cellForRow(at: indexPath)?.accessoryType = UITableViewCell.AccessoryType.none
} else {
tableView.cellForRow(at: indexPath)?.accessoryType = UITableViewCell.AccessoryType.checkmark
if selectedItems.contains(items[indexPath.row]) {
selectedItems.remove(at: selectedItems.firstIndex(of: items[indexPath.row])!)
} else {
selectedItems.append(items[indexPath.row])
}
checked.append(indexPath.row)
}
}

Answer 1

According to my understanding to the question, these are my thoughts:
1. First setup necessary variables
var items = [String]() // data to display in tableview
var selectedItems = [String]() // here all the selected datas are stored
2. Store the selected items data from the didSelectRowAt delegate method
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if selectedItems.contains(items[indexPath.row]) { //check if the selected already contains the items and if contains remove it
selectedItems.remove(at: selectedItems.firstIndex(of: items[indexPath.row])!)
} else { // append the required items
selectedItems.append(items[indexPath.row])
}
// ..... other codes here
}
3. on done button
let requiredText = selectedItems.joined(separator: ",")
// pass this data through delegate method

Answer 2

There is no need to create an array for the selected items. You can simply call tableview method selectRow(at:animated:scrollPosition:) when selecting a row and when you need to get the selected rows just call tableview instance property indexPathsForSelectedRows. Then you just need to join the selected rows with a comma and use the resulting string in your textview or textfield. Don't forget to implement didDeselectRowAt item method as well to deselectRow.
import UIKit
class TableViewController: UITableViewController {
var items: [String] = ["1st", "2nd", "3rd", "4th", "5th"]
override func viewDidLoad() {
super.viewDidLoad()
tableView.allowsMultipleSelection = true
}
override func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
if let cell = tableView.cellForRow(at: indexPath) {
cell.accessoryType = .none
}
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.selectRow(at: indexPath, animated: true, scrollPosition: .none)
if let cell = tableView.cellForRow(at: indexPath) {
cell.accessoryType = .checkmark
}
}
func done() {
if let indexPaths = tableView.indexPathsForSelectedRows {
// note that this will preserve the order that the rows where selected. Just sort the indexPaths if you need it sorted.
let string = indexPaths.map { items[$0.row] }.joined(separator: ",")
print(string)
// your code
}
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return items.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "TableViewCellID", for: indexPath) as! TableViewCell
cell.textLabel?.text = items[indexPath.row]
cell.accessoryType = cell.isSelected ? .checkmark : .none
return cell
}
}