windowLevel
The position of the window in the z-axis.
Declaration
var windowLevel: UIWindow.Level { get set }Discussion
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.