ListSectionObserver

@available(OSX 10.12, *)
public protocol ListSectionObserver : ListObjectObserver

Implement the ListSectionObserver protocol to observe changes to a list’s section info. ListSectionObservers may register themselves to a ListMonitor‘s addObserver(_:) method:

let monitor = CoreStore.monitorSectionedList(
    From<MyPersonEntity>(),
    SectionBy("age") { "Age \($0)" },
    OrderBy(.ascending("lastName"))
)
monitor.addObserver(self)


                    
                    
                    listMonitor(_:didInsertSection:toSectionIndex:)

Default implementation

Notifies that a section was inserted at the specified index. (Optional) The default implementation does nothing.

Default Implementation

Declaration

Swift

func listMonitor(_ monitor: ListMonitor<ListEntityType>, didInsertSection sectionInfo: NSFetchedResultsSectionInfo, toSectionIndex sectionIndex: Int)

Parameters

`monitor`	the `ListMonitor` monitoring the list being observed
`sectionInfo`	the `NSFetchedResultsSectionInfo` for the inserted section
`sectionIndex`	the new section index for the new section


                    
                    
                    listMonitor(_:didDeleteSection:fromSectionIndex:)