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Sunil Singh

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Sunil Singh

Sunil Singh

02-Jan-2017
Key-value observing provides a mechanism that allows objects to be notified of changes to specific properties of other objects. It is particularly useful for communication between model and controller layers in an application.
To observe a property using KVO you would identify to property with a string , using KVC (Key Value Coding) , Therefore, the observable object must be KVC compliant. 
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