TLIndexPathControllerDelegate Protocol Reference
| Conforms to | NSObject |
| Declared in | TLIndexPathController.h |
Overview
An instance of TLIndexPathController uses this protocol to notify it’s delegate
about batch changes to the data model, providing access to the TLIndexPathDataModelUpdates
instance which can be uses to perform batch updates on a table or collection view.
Instance Methods
controller:didUpdateDataModel:
Notifies the reciever of batch data model changes.
- (void)controller:(TLIndexPathController *)controller didUpdateDataModel:(TLIndexPathUpdates *)updatesParameters
- controller
the index path controller that sent the message.
- updates
the updates object that can be used to perform batch updates on a table or collection view.
Declared In
TLIndexPathController.hcontroller:willUpdateDataModel:withDataModel:
Notifies the reciever that the data model is about to be updated. If the receiver
returns a data model, that model will be used instead. This is particularly useful
for modifying the internally generated models when the controller is
configured with an NSFetchRequest. For example, if the model contains zero items,
it can be replaced with a model containing a “no results” item.
- (TLIndexPathDataModel *)controller:(TLIndexPathController *)controller willUpdateDataModel:(TLIndexPathDataModel *)oldDataModel withDataModel:(TLIndexPathDataModel *)updatedDataModelParameters
- controller
the index path controller that sent the message.
- updates
the updates object that can be used to perform batch updates on a table or collection view.
Return Value
an alternative data model to use instead of updatedDataModel or nil to use updatedDataModel
Declared In
TLIndexPathController.h