how to uncheck uitableview cells using accessory checkmark - ios

Question

i have two sections
1.MapViewController
2.TypesTableViewController
when i run my app and call TypesTableViewController and when it opens it shows all cells selected i want it to be unchecked
please help me and check my code
1.MapViewController
class MapViewController: UIViewController {
#IBOutlet weak var mapCenterPinImage: UIImageView!
#IBOutlet weak var pinImageVerticalConstraint: NSLayoutConstraint!
var searchedTypes = ["bakery", "bar", "cafe", "grocery_or_supermarket", "restaurant"]
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "Types Segue" {
let navigationController = segue.destinationViewController as! UINavigationController
let controller = navigationController.topViewController as! TypesTableViewController
controller.selectedTypes = searchedTypes
controller.delegate = self
}
}
}
// MARK: - TypesTableViewControllerDelegate
extension MapViewController: TypesTableViewControllerDelegate {
func typesController(controller: TypesTableViewController, didSelectTypes types: [String]) {
searchedTypes = controller.selectedTypes.sort()
dismissViewControllerAnimated(true, completion: nil)
}
}
2.TypesTableViewController
protocol TypesTableViewControllerDelegate: class {
func typesController(controller: TypesTableViewController, didSelectTypes types: [String])
}
class TypesTableViewController: UITableViewController {
let possibleTypesDictionary = ["bakery":"Bakery", "bar":"Bar", "cafe":"Cafe", "grocery_or_supermarket":"Supermarket", "restaurant":"Restaurant"]
var selectedTypes: [String]!
weak var delegate: TypesTableViewControllerDelegate!
var sortedKeys: [String] {
return possibleTypesDictionary.keys.sort()
}
// MARK: - Actions
#IBAction func donePressed(sender: AnyObject) {
delegate?.typesController(self, didSelectTypes: selectedTypes)
}
// MARK: - Table view data source
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return possibleTypesDictionary.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("TypeCell", forIndexPath: indexPath)
let key = sortedKeys[indexPath.row]
let type = possibleTypesDictionary[key]!
cell.textLabel?.text = type
cell.imageView?.image = UIImage(named: key)
cell.accessoryType = (selectedTypes!).contains(key) ? .Checkmark : .None
return cell
}
// MARK: - Table view delegate
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
tableView.deselectRowAtIndexPath(indexPath, animated: true)
let key = sortedKeys[indexPath.row]
if (selectedTypes!).contains(key) {
selectedTypes = selectedTypes.filter({$0 != key})
} else {
selectedTypes.append(key)
}
tableView.reloadData()
}
}

Answer 1

override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
//toggle checkmark on and off
if tableView.cellForRow(at: indexPath)?.accessoryType == .checkmark {
tableView.cellForRow(at: indexPath)?.accessoryType = .none
}
else {
tableView.cellForRow(at: indexPath)?.accessoryType = .checkmark
}
//add animation so cell does not stay selected
tableView.deselectRow(at: indexPath, animated: true)
}

Answer 2

Not sure what you are doing in your code. If you want to uncheck then change below line to
cell.accessoryType = (selectedTypes!).contains(key) ? .Checkmark : .None
to
cell.accessoryType = (selectedTypes!).contains(key) ? . None : . Checkmark
Updated:- second part of the answer to get only checkmark cells,
change as below
#IBAction func donePressed(sender: AnyObject) {
let rowCount = tableView.numberOfRowsInSection(0)
selectedTypes.removeAll()
for var index = 0; index < rowCount; ++index {
let cell = tableView.cellForRowAtIndexPath(NSIndexPath(forRow: index, inSection: 0)) as! YourCell
if cell.accessoryType = .Checkmark{
let key = sortedKeys[index]
selectedTypes.append(key)
}
delegate?.typesController(self, didSelectTypes: selectedTypes)
}
}