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27 Aug 2013 Im trying to subclass a NSOperation, and read some sample from, they say: when the task finished, using KVO of NSOperation, to finish the
The NSOperation class is key-value coding (KVC) and key-value observing . or quit the application, for example—you can cancel the operation to prevent it
14 Jul 2014 Examples of tasks that lend themselves well to NSOperation include network When an operation is ready to be executed, it sends a KVO
26 Jun 2009 Use KVO to observe the operations property of your queue, then you can .. In this example "spinner" is a UIActivityIndicatorView showing that
7 Oct 2013 For example, UIScrollView sends scrollViewDidScroll: to its sorts, whether block properties like NSOperation -completionBlock , which trigger
5 Apr 2012 You're using KVO, right? KVO was written long before there was anything like @property in The most popular example is NSOperation:
13 Dec 2012 For information about how to observe KVO notifications, see . For a detailed example of how to implement an NSOperation subclass, see
22 Oct 2008 Cocoa's Key-Value Observing facilities are extremely powerful and A perfect example of this is NSOperation: the only way to get notified
9 Apr 2010 NSOperation uses KVO intrinsically in it's operation; having to implement isFinished and isExecuted as part of the processing, for example are
17 Aug 2014 NSOperation and NSOperationQueue are higher level classes that have and key-value observing (KVO) compliant for several of its properties. A good example of a concurrent operation is one that executes an HTTP
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