Can you explain what happens in the viewDidLoad() method in iOS development?

The viewDidLoad() method is called once in the view controller's (UIViewController) lifecycle after its view has been loaded into memory but before it appears on the screen. In this method, initial interface setup, data initialization, adding subviews, delegate configuration, and other one-time setup tasks are typically performed.

Example:

override func viewDidLoad() {
    super.viewDidLoad()
    // Set background color
    view.backgroundColor = .white
    // Load data
    loadData()
    // Add a button
    let button = UIButton(type: .system)
    button.setTitle("Press me", for: .normal)
    button.addTarget(self, action: #selector(buttonTapped), for: .touchUpInside)
    view.addSubview(button)
    button.center = view.center
}