Please note, this blog entry is from a previous course. You might want to check out the current one.
NSNotification
Notifications provide a way to react to asynchronous events. e.g.:
NSNotificationCenter.defaultCenter() func addObserverForName(String, // name of the "radio station" object: AnyObject?, // broadcaster (or nil for "anyone") queue: NSOperationQueue?) // queue to execute the closure on { (notification: NSNotification) -> Void in let info: [NSObject:AnyObject]? = notification.userInfo // notification-specific information }
Continue reading “cs193p – Lecture #13 Application Lifecycle and Core Motion”
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