Informs the receiver that the size of its superlayer changed.
Mac Catalyst 13.0+Beta
The previous size of the superlayer.
When the autoresizingMask property is used for resizing and the bounds of a layer change, that layer calls this method on each of its sublayers. Sublayers use this method to adjust their own frame rectangles to reflect the new superlayer bounds, which can be retrieved directly from the superlayer. The old size of the superlayer is passed to this method so that the sublayer has that information for any calculations it must make.
Returns the preferred size of the layer in the coordinate space of its superlayer.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.