- nib
- The UIKit.UINib to be used to populate the supplementary view.
- section
- The kind of supplementary view being registered.
- reuseIdentifier
- A non-empty string to be associated with the nib.
The UIKit.UICollectionView maintains a highly-efficient reuse queue for offscreen components. This requires that the UIKit.UICollectionView be responsible for the lifecycle management of its component views. This method (and related methods such as UICollectionView.RegisterNibForCell) provide the UIKit.UICollectionView the knowledge of which types it needs to instantiate.
The application developer may pass null as the reuseIdentifier, in which case the nib will be "un-registered" and no longer instantiated. The application developer may pass in a reuseIdentifier previously associated with another nib, in which case the old nib will be "de-registered" and the new nib will be used.