EventListener
AWTEventMulticaster
, BasicInternalFrameUI.ComponentHandler
, BasicSliderUI.ComponentHandler
, BasicTreeUI.ComponentHandler
, Component.AccessibleAWTComponent.AccessibleAWTComponentHandler
, ComponentAdapter
, JViewport.ViewListener
public interface ComponentListener extends EventListener
ComponentAdapter
class
(overriding only the methods of interest).
The listener object created from that class is then registered with a
component using the component's addComponentListener
method. When the component's size, location, or visibility
changes, the relevant method in the listener object is invoked,
and the ComponentEvent
is passed to it.
Component events are provided for notification purposes ONLY;
The AWT will automatically handle component moves and resizes
internally so that GUI layout works properly regardless of
whether a program registers a ComponentListener
or not.
ComponentAdapter
,
ComponentEvent
,
Tutorial: Writing a Component ListenerModifier and Type | Method | Description |
---|---|---|
void |
componentHidden(ComponentEvent e) |
Invoked when the component has been made invisible.
|
void |
componentMoved(ComponentEvent e) |
Invoked when the component's position changes.
|
void |
componentResized(ComponentEvent e) |
Invoked when the component's size changes.
|
void |
componentShown(ComponentEvent e) |
Invoked when the component has been made visible.
|
void componentResized(ComponentEvent e)
e
- the event to be processedvoid componentMoved(ComponentEvent e)
e
- the event to be processedvoid componentShown(ComponentEvent e)
e
- the event to be processedvoid componentHidden(ComponentEvent e)
e
- the event to be processed Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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DRAFT 9-internal+0-adhoc.mlchung.jdk9-jdeps