Java Module java.desktop Package javax.swing.plaf.basic Class BasicTreeUI.TreeExpansionHandler（JDK11）

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java.lang.Object
- javax.swing.plaf.basic.BasicTreeUI.TreeExpansionHandler

All Implemented Interfaces:
EventListener, TreeExpansionListener
Enclosing class:
BasicTreeUI
```
public class BasicTreeUI.TreeExpansionHandler
extends Object
implements TreeExpansionListener
```
Updates the TreeState in response to nodes expanding/collapsing.

Constructor Summary
Constructors
Constructor Description
TreeExpansionHandler()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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 declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - TreeExpansionHandler
```
public TreeExpansionHandler()
```
- Method Detail
  - treeExpanded
```
public void treeExpanded(TreeExpansionEvent event)
```
    Called whenever an item in the tree has been expanded.
    Specified by:
    treeExpanded in interface TreeExpansionListener
    Parameters:
    event - a TreeExpansionEvent containing a TreePath object for the expanded node
  - treeCollapsed
```
public void treeCollapsed(TreeExpansionEvent event)
```
    Called whenever an item in the tree has been collapsed.
    Specified by:
    treeCollapsed in interface TreeExpansionListener
    Parameters:
    event - a TreeExpansionEvent containing a TreePath object for the collapsed node

本文分类：JavaAPI
本文标签：JavaAPI JDK11 Java11
浏览次数：150 次浏览
本文链接：/javaapi/35960.html

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