EventListener
AWTEventMulticaster
public interface HierarchyListener extends EventListener
addHierarchyListener
method. When the hierarchy to which the Component belongs changes, the hierarchyChanged
method in the listener object is invoked, and the HierarchyEvent
is passed to it. Hierarchy events are provided for notification purposes ONLY; The AWT will automatically handle changes to the hierarchy internally so that GUI layout, displayability, and visibility work properly regardless of whether a program registers a HierarchyListener
or not.
Modifier and Type | Method | Description |
---|---|---|
void |
hierarchyChanged |
Called when the hierarchy has been changed. |
void hierarchyChanged(HierarchyEvent e)
HierarchyEvent.getChangeFlags()
.e
- the event to be processed
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/java/awt/event/HierarchyListener.html