Informs the delegate that the layout manager will invalidate layout due to a change in the geometry of the specified text container.
- iOS 7.0+
- macOS 10.11+
- Mac Catalyst 13.0+
- tvOS 9.0+
The layout manager invalidating layout.
The text container that changed geometry.
The size of the text container before it changed geometry.
The delegate can react to the geometry change and perform adjustments such as recreating an exclusion path.