5.8. Tapping a cell in TableView and Practice exercise

Let's open ViewController.swift file and add the following code to the protocols adoption block:

//
//  ViewController.swift
//  App5
//
//  Created by Sakib Miazi on 5/18/23.
//

//codes omitted...

extension ViewController: UITableViewDelegate, UITableViewDataSource{
    //codes omitted...
    
    //MARK: deal with user interaction with a cell...
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        print(self.expenses[indexPath.row])
    }
    
}

We added the tableView() method for didSelectRowAt. It is the call-back method if a user taps on a cell (selected a cell) in TableView. After you add this method, let's run the app. It should print the corresponding data.

Now, you can see that you can handle it if a user taps on a cell. It's time for exercise.

Exercise

Now your task is to build a third screen, "DisplayExpense," to show the details of an expense if a user taps on it. It could be just three Labels to display the title, amount, and type of the selected expense.