java.awt.event
Interface ComponentListener
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- All Superinterfaces:
- EventListener
- All Known Implementing Classes:
- AWTEventMulticaster, BasicInternalFrameUI.ComponentHandler, BasicSliderUI.ComponentHandler, BasicTreeUI.ComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, ComponentAdapter, JViewport.ViewListener
public interface ComponentListener extends EventListener
The listener interface for receiving component events. The class that is interested in processing a component event either implements this interface (and all the methods it contains) or extends the abstractComponentAdapterclass (overriding only the methods of interest). The listener object created from that class is then registered with a component using the component'saddComponentListenermethod. When the component's size, location, or visibility changes, the relevant method in the listener object is invoked, and theComponentEventis 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
ComponentListeneror not.- Since:
- 1.1
- See Also:
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ComponentAdapter,ComponentEvent, Tutorial: Writing a Component Listener
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method and Description voidcomponentHidden(ComponentEvent e)Invoked when the component has been made invisible.voidcomponentMoved(ComponentEvent e)Invoked when the component's position changes.voidcomponentResized(ComponentEvent e)Invoked when the component's size changes.voidcomponentShown(ComponentEvent e)Invoked when the component has been made visible.
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Method Detail
componentResized
void componentResized(ComponentEvent e)
Invoked when the component's size changes.
componentMoved
void componentMoved(ComponentEvent e)
Invoked when the component's position changes.
componentShown
void componentShown(ComponentEvent e)
Invoked when the component has been made visible.
componentHidden
void componentHidden(ComponentEvent e)
Invoked when the component has been made invisible.
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