Thanks a lot!

Thank you so much! It works! P.S. But one question remained with me. Why does Jacob's code work without this? Below is a screenshot of his code.

I used the Interface Bilder

This is my Document Outline on the attached screenshot. I didn't use any code

it is a regular TableViewController with static grouped cells. No code was used here, just an interface builder.

yes it looks like the background of the cell. If I set constraints along with the margins, then the Date Picker will look like this

You know, while we were discussing, I'm already used to this appearance)) I won't dive into the settings, I'll leave it as it is. Thanks a lot for your help! I and other people appreciate it very much!

Thank you so much!

Maybe you need to switch the mode of displaying messages in the console. It is located at the bottom of the Playground. Look at the screenshot below

I think that this should be looked for in some new frameworks

Create your own small applications. For example, currency converter, to-do list, etc.

"How do you deselect?" I use this if condition inside of didSelectRowAt method // Set a checkmark if item.isSelected == false { cell.accessoryType = .checkmark item.isSelected.toggle()// // Remove a checkmark } else { cell.accessoryType = .none item.isSelected.toggle()// } The fact is that in this condition only the first part is executed, and the second part (else) is never executed. And I cannot understand why? "call func reloadROws..." I call tableView.reloadData() but it doesn't work.

Thank you so much! I made a following code:     override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {         // Create variable and check it.         guard let cell = tableView.cellForRow(at: indexPath) else { return }          //Clean cell format before select food         cell.accessoryType = .none         // Set checkmark         if foods[indexPath].isSelected == false {             cell.accessoryType = .checkmark             foods[indexPath].isSelected.toggle()         // Remove checkmark         } else {             cell.accessoryType = .none             foods[indexPath].isSelected.toggle()         } LoadSaveData.saveToFile(foods: foods)         tableView.reloadData()     } It works!

P.S. But why is this happening? After all, next to it, in the cellForRowAt method, the same previous code is used: ... let food = foods[indexPath.row]         ...         // Assign checkmark         if food.isSelected {             cell.accessoryType = .checkmark         } else {             cell.accessoryType = .none         } ... And it works. Any ideas on this point, please.

You wrote: "Unless you call reloadRows(at:with:) or reloadData() (generally, reloadData() is too much just for updating a single cell), UITableView would not update the cell, meaning tableView(_:cellForRowAt:) would not be called." I understand that. My question is about something else - why is the same operation performed differently? Inside the cellForRowAt method, I can create a separate constant to hold the item from array and then check its isSelected property. let food = foods[indexPath.row] if food.isSelected {... But inside the didSelectRowAt method, this code does not work and I need to retrieve an item from the original array on the fly to check its isSelected property. if foods[indexPath].isSelected... What could be the reason here? Any ideas please