scrollEdgeAppearance
The appearance settings for the tab bar when the edge of scrollable content aligns with the edge of the tab bar.
Declaration
@NSCopying var scrollEdgeAppearance: UITabBarAppearance? { get set }Discussion
When a tab bar displays the selected item, the appearance setting in this property overrides the settings in the scrollEdgeAppearance property of UIToolbar.
Use this property to apply a scroll edge appearance based on the tab bar item stored in the selectedItem property. If the selected item’s scrollEdgeAppearance property is nil, UIKit uses the tab bar’s scroll edge appearance.