CALayoutManager Protocol Reference
CALayoutManager is an informal protocol implemented by Core Animation layout managers. If a layer’s sublayers require custom layout you create a class that implements this protocol and set it as the layer’s layout manager using the
setLayoutManager:. Your custom layout manager is then used when the layer invokes
Layout each of the sublayers in the specified layer.
The layer that requires layout of its sublayers.
This method is called when the sublayers of the layer may need rearranging, and is typically called when a sublayer has changed its size. The receiver is responsible for changing the frame of each sublayer that requires layout.
- Available in iOS 3.0 and later.
© 2007 Apple Inc. All Rights Reserved. (Last updated: 2007-07-24)