compactScrollEdgeAppearance
The appearance settings for a compact-height navigation bar when the edge of scrollable content aligns with the edge of the navigation bar.
Declaration
@NSCopying var compactScrollEdgeAppearance: UINavigationBarAppearance? { get set }Discussion
When a navigation controller contains a navigation bar and a scroll view, part of the scroll view’s content appears underneath the navigation bar. If the edge of the scrolled content reaches that bar, UIKit applies the appearance settings in this property.
This property applies to compact-height navigation bars. If the value of this property is nil, UIKit uses the value of the scrollEdgeAppearance of the navigation bar. If no navigation controller manages your navigation bar, UIKit ignores this property and uses the compactAppearance of the navigation bar.
You can customize the appearance of the navigation bar based on the top navigation item with the compactScrollEdgeAppearance property of UINavigationItem.