how to change status bar color swift code example

Example 1: swift change status bar color

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    setNeedsStatusBarAppearanceUpdate()
}
override var preferredStatusBarStyle: UIStatusBarStyle {
    .lightContent
}

Example 2: how to change background color swift

self.view.backgroundColor = .black / .blue / .purple / .clear /ect.