childForStatusBarStyle
Called when the system needs the view controller to use for determining status bar style.
Declaration
var childForStatusBarStyle: UIViewController? { get }Return Value
The view controller whose status bar style should be used.
Discussion
If your container view controller derives its status bar style from one of its child view controllers, implement this method and return that child view controller. If you return nil or do not override this method, the status bar style for self is used. If the return value from this method changes, call the setNeedsStatusBarAppearanceUpdate() method.