Key-value Observing or KVO is a technology for observing changes in object properties.
I'm rewriting parts of an app, and found this code: fileprivate let defaults = UserDefaults.standard func storeValue(_ value: AnyObject, forKey …
ios swift key-value-observing foundationI'm using key value observing on a boolean property an NSObject method: -(void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object …
objective-c cocoa key-value-observingI am trying to get key-value-observing to work for an NSMutableArray. Below is the .h file for MyObservee, the observed …
cocoa key-value-observing key-value-codingIs there a method that returns all the keys for an object conforming to the NSKeyValueCoding protocol? Something along the …
objective-c cocoa properties introspection key-value-observingI have a custom UITableViewCell which is displaying various attributes of a Person object (backed by Core Data) ... some labels, …
objective-c core-data uitableview key-value-observingIf I store an observer like this: let observer: NSKeyValueObservation = foo.observe(\.value, options: [.new]) { (foo, change) in print(change.…
swift key-value-observing swift4I am trying to use KVO to listen to collection change events on an NSArray property. Publicly, the property is …
ios objective-c ios7 nsarray key-value-observingI was wondering what the parameters from this method would return. - (void) observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(…
objective-c cocoa parameters key-value-observingHere is my class: class ViewController: UIViewController { var myArray : NSArray! } I want to fire an event every time myArray points …
swift key-value-observing rx-swiftHow can I set KVO (key-value-observing) with an NSMutableArray? I want to be notified when a change appears in the …
objective-c cocoa key-value-observing