Instance Property


The position of the window in the z-axis.


var windowLevel: UIWindow.Level { get set }


Window levels provide a relative grouping of windows along the z-axis. All windows assigned to the same window level appear in front of (or behind) all windows assigned to a different window level. The ordering of windows within a given window level is not guaranteed.

The default value of this property is normal. For a list of other possible window levels, see UIWindow.Level.

See Also

Configuring the Window

var rootViewController: UIViewController?

The root view controller for the window.

struct UIWindow.Level

The positioning of windows relative to each other.

var screen: UIScreen

The screen on which the window is displayed.

var canResizeToFitContent: Bool

A Boolean value that indicates whether the window's constraint-based content determines its size.