2014/10/15 下午 10:12:16

iphone Programming Glossary: observable

Equivalent of iOS NSNotificationCenter in Android?

http://stackoverflow.com/questions/10327200/equivalent-of-ios-nsnotificationcenter-in-android

add synchronized for concurrent use but the idea is the same public class ObservingService HashMap String Observable observables public ObservingService observables new HashMap String Observable public void addObserver String notification Observer.. but the idea is the same public class ObservingService HashMap String Observable observables public ObservingService observables new HashMap String Observable public void addObserver String notification Observer observer Observable observable observables.get.. observables new HashMap String Observable public void addObserver String notification Observer observer Observable observable observables.get notification if observable null observable new Observable observables.put notification observable observable.addObserver..

What's the nicest way to do observer/observable in objective-c (iphone version)

http://stackoverflow.com/questions/165790/whats-the-nicest-way-to-do-observer-observable-in-objective-c-iphone-version

the nicest way to do observer observable in objective c iphone version I'm used to coding Java Swing UIs and in those if you have some properties that change and.. and in those if you have some properties that change and you want your UI to update you would implement the observer observable pattern. In Java you do this normally by having your class maintain a list of listeners that it notifies of different events...

Use Key Value Observing to get a KVO callback on a UIView's frame

http://stackoverflow.com/questions/4874288/use-key-value-observing-to-get-a-kvo-callback-on-a-uiviews-frame

question Currently it's not possible to use KVO to observe a view's frame. Properties have to be KVO compliant to be observable. Sadly properties of the UIKit framework are generally not observable as with any other system framework. From the documentation.. frame. Properties have to be KVO compliant to be observable. Sadly properties of the UIKit framework are generally not observable as with any other system framework. From the documentation Note Although the classes of the UIKit framework generally do..

Equivalent of iOS NSNotificationCenter in Android?

http://stackoverflow.com/questions/10327200/equivalent-of-ios-nsnotificationcenter-in-android

improve this question In Android there is not a central notification center as in ios. But you can basically use Observable and Observer objects to achieve your task. You can define a class like something below just modify it for singleton use.. use and add synchronized for concurrent use but the idea is the same public class ObservingService HashMap String Observable observables public ObservingService observables new HashMap String Observable public void addObserver String notification.. class ObservingService HashMap String Observable observables public ObservingService observables new HashMap String Observable public void addObserver String notification Observer observer Observable observable observables.get notification if observable..