Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
programming technique
|
| gptkbp:allows |
objects to be notified of changes to properties of other objects
|
| gptkbp:category |
observer pattern
|
| gptkbp:documentation |
https://developer.apple.com/documentation/swift/cocoa_design_patterns/using_key-value_observing_in_swift
|
| gptkbp:enables |
observation of property changes
|
| gptkbp:hasMethod |
addObserver:forKeyPath:options:context:
observeValueForKeyPath:ofObject:change:context: removeObserver:forKeyPath: |
| https://www.w3.org/2000/01/rdf-schema#label |
Key-Value Observing (KVO)
|
| gptkbp:introducedIn |
gptkb:Mac_OS_X_10.3
|
| gptkbp:provides |
Apple frameworks
|
| gptkbp:relatedTo |
gptkb:Key-Value_Coding_(KVC)
|
| gptkbp:requires |
compliance with KVC
|
| gptkbp:usedFor |
data binding
UI updates model-view synchronization |
| gptkbp:usedIn |
gptkb:Objective-C
gptkb:Swift gptkb:Cocoa_Touch Cocoa |
| gptkbp:bfsParent |
gptkb:KVC_(Key-Value_Coding)
|
| gptkbp:bfsLayer |
7
|