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	Podcast:		iOSDevLog
	Episode:		196. wwdc 2015-226 Advanced NSOperations-2
	Category:		Technology
	Duration:		00:36:06
	Publish Date:		2015-11-15 21:32:51
	Description:		http://iosdevlog.com/wwdc/2015/11/16/195196-wwdc2015-226-advanced-nsoperations/ Summary Operations abstract logic Dependencies clarify intent Describe complex behaviors Enables powerful patterns Operation NSOperation subclass Adds “conditions” Adds “observers” Example operations * Groups * URLSessionTask * Location * Delay OperationCondition Generates dependencies Defines mutual exclusivity Checks for satisfied conditions Example conditions * MutuallyExclusive * Reachability * Permissions OperationObserver Notified about significant events * Operation start * Operation end * Operation generation Example observers * Timeouts * Background tasks * Network activity indicator
	Total Play:		0