NSKeyValueObservingプロトコル

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apple(OS X)
apple(iOS)

(informal protocol)

準拠	NSObject
フレームワーク	/System/Library/Frameworks/Foundation.framework
使用可能	OS X 10.3
	iOS 2.0
定義	NSKeyValueObserving.h

概要

フレームワーク

参照

タスク

Change Notification

– observeValueForKeyPath:ofObject:change:context:

Registering for Observation

– addObserver:forKeyPath:options:context:
– removeObserver:forKeyPath:
– removeObserver:forKeyPath:context:

Notifying Observers of Changes

– willChangeValueForKey:
– didChangeValueForKey:
– willChange:valuesAtIndexes:forKey:
– didChange:valuesAtIndexes:forKey:
– willChangeValueForKey:withSetMutation:usingObjects:
– didChangeValueForKey:withSetMutation:usingObjects:

Observing Customization

+ automaticallyNotifiesObserversForKey:
+ keyPathsForValuesAffectingValueForKey:
– setObservationInfo:
– observationInfo
+ setKeys:triggerChangeNotificationsForDependentKey: Deprecated in OS X v10.5 and later