public class ObserverCallBack extends Object implements EventListener
example: aRegion.onAppear(anImage, new ObserverCallBack() { appeared(ObserveEvent e) { // do something } } );when the image appears, your above call back appeared() will be called see
ObserveEvent
about the features available in the callback functionConstructor and Description |
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ObserverCallBack() |
ObserverCallBack(Object callback,
ObserveEvent.Type obsType) |
Modifier and Type | Method and Description |
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void |
appeared(ObserveEvent e) |
void |
changed(ObserveEvent e) |
void |
happened(ObserveEvent e) |
void |
vanished(ObserveEvent e) |
public ObserverCallBack(Object callback, ObserveEvent.Type obsType)
public ObserverCallBack()
public void appeared(ObserveEvent e)
public void vanished(ObserveEvent e)
public void changed(ObserveEvent e)
public void happened(ObserveEvent e)