SMPOpenUICollectionDisplayAdapter protocol

Protocol for a field extension representing a collection.

• allObjectsChanged: method
  Called to inform the adapter that the collection has changed enough that it needs to be completely refreshed.
• initWithCollectionDisplayModel: method
  Called to initialize the extension with its model.
• model:didSelectObjectAtIndex: method
  Called to inform the adapter that the selection index has changed.
• model:objectAddedAtIndex: method
  Called to inform the adapter that an object has been added to the collection at the specified position.
• model:objectChangedAtIndex: method
  Called to inform the adapter that the object at the specified position has changed enough that it needs to be completely refreshed.
• model:objectDeletedAtIndex: method
  Called to inform the adapter that the object at the specified position has been deleted and needs to be removed.