Interface TreeExpansionListener
- All Superinterfaces:
- EventListener
- All Known Implementing Classes:
- BasicTreeUI.TreeExpansionHandler, JTree.AccessibleJTree
public interface TreeExpansionListener extends EventListener
The listener that's notified when a tree expands or collapses a node. For further documentation and examples see How to Write a Tree Expansion Listener, a section in The Java Tutorial.
Methods
| Modifier and Type | Method and Description |
|---|---|
void |
treeCollapsed(TreeExpansionEvent event) Called whenever an item in the tree has been collapsed. |
void |
treeExpanded(TreeExpansionEvent event) Called whenever an item in the tree has been expanded. |
Methods
treeExpanded
void treeExpanded(TreeExpansionEvent event)
Called whenever an item in the tree has been expanded.
treeCollapsed
void treeCollapsed(TreeExpansionEvent event)
Called whenever an item in the tree has been collapsed.
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https://docs.oracle.com/javase/8/docs/api/javax/swing/event/TreeExpansionListener.html