All in the title except : what is an NSArrayCollection ? I suppose you mean : number of objects managed by NSArrayController ? If so, you could: let controller = NSArrayController() // add objects print((controller.arrangedObjects as! [AnyObject]).count)

So, did you try: let controller = NSArrayController() // add objects         controller.addObject(125 as Any)         controller.addObject("Hello" as Any) print((controller.arrangedObjects as! [AnyObject]).count). // as! [AnyObject] needed because not an array. You get 2. See interesting discussion here: https://stackoverflow.com/questions/30965208/how-to-iterate-over-an-nsarraycontroller-contents-in-swift If OK, don't forget to close the thread by marking correct answer ; otherwise explain what is not working. And please also close or respond on some other threads you opened.

Great. Note that if you just add, the count is 0. Because it does not add to the array. That's a pretty subtile difference. func add(Any?) Creates and adds a new object to the receiver’s content and arranged objects. func addObject(Any) Adds object to the receiver’s content collection and the arranged objects array.

What threshold are you speaking about ? A threshold in Appstore Connect ?

Though i don’t know the name of the function im after, so i don’t really know how to build my code. Plus what robnotyou said. So do you know anything about what you are looking for ? Otherwise, that will be a difficult search, isn't it ?

iOS works as expected. Good news (no surprise). Android questions are not for this forum. You should ask on Android forum.

This long text, without a single line break is so hard to read that I could not get past the third line. So, what is your precise question ?

I tested on Xcode 13.2ß. Problem solved. Both on iOS 15.0 and iOS 15.2. So apparently problem was in Xcode.

I do not see in your code where is tableView(cellForRow) ?     func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { . The simplest would be to manage all this with your dataSource. var pickers : [DatePicker] = [] In your code, you would have pickers = [checkInDatePicker] or pickers = [checkOutDatePicker] Note a question: why do you need to define isCheckOutDatePickerVisible and not use simply isCheckOutDatePicker.isHidden For instance,         } else if indexPath == checkOutDateLabelCellIndexPath && isCheckInDatePickerVisible == false { would become         } else if indexPath == checkOutDateLabelCellIndexPath && icheckInDatePicker.isHidden { Or             isCheckInDatePickerVisible.toggle() would become             checkInDatePicker.isHidden.toggle() That could simplify code a lot. Now a hint. Why do you:         tableView.beginUpdates()         tableView.endUpdates() with nothing inside And not simply tableView.reload()

Is it on device or on simulator ? Which versions of Xcode (13 or 13.1 or 13.2), iOS ? Could you show the code you use to get the size ? Where do you run it ? In viewDidLoad ? Or elsewhere ?

There are effectively a few spams which are repeated ; upsofar, only solution seems to mark as spam. Unfortunately, I wonder if the best solution wouldn't be to restrict forum posting to those with an account (paid ?) and terminate those who spam like this.

What do you mean exactly by "supported" ?

Could you post the complete code ?

What is the exact message ? Failed of busy ? With a similar problem, I found initial advice here: https://stackoverflow.com/questions/46316373/fixing-xcode-9-issue-iphone-is-busy-preparing-debugger-support-for-iphone To solve the problem, I rebooted everything. When opening Windows > Devices, iPhone was stated as busy. After 10’, that was cleared.

You will find details here: https://stackoverflow.com/questions/21609921/how-to-add-navigation-controller-programmatically/36203448 . I don't want to do it with Storyboard It is much easier to do it in storyboard ! sometimes I delete some UI elements some files still keep the deleted elements Probably because you do not delete in the right way. And you should also do a Clean Build Folder after deleting.