Module java.desktop

Package javax.swing.plaf.basic

Class BasicTreeUI.TreeExpansionHandler

java.lang.Object

javax.swing.plaf.basic.BasicTreeUI.TreeExpansionHandler

所有已实现的接口:

EventListener, TreeExpansionListener

封装类:

BasicTreeUI

       public class BasicTreeUI.TreeExpansionHandler extends Object implements TreeExpansionListener
      

响应节点展开/折叠更新TreeState。

Constructor Summary

Constructors

Constructor	Description
TreeExpansionHandler()	构造一个TreeExpansionHandler。

Method Summary

Modifier and Type	Method	Description
void	treeCollapsed(TreeExpansionEvent event)	每当树中的项目已折叠时调用。
void	treeExpanded(TreeExpansionEvent event)	每当树中的项目已展开时调用。

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TreeExpansionHandler

             public TreeExpansionHandler()
            

构造一个TreeExpansionHandler。

Method Details

treeExpanded

             public void treeExpanded(TreeExpansionEvent event)
            

每当树中的项目已展开时调用。

指定者:

treeExpanded 在接口 TreeExpansionListener中

参数:

event - 包含展开节点的TreePath对象的TreeExpansionEvent

treeCollapsed

             public void treeCollapsed(TreeExpansionEvent event)
            

每当树中的项目已折叠时调用。

指定者:

treeCollapsed 在接口 TreeExpansionListener中

参数:

event - 包含折叠节点的TreePath对象的TreeExpansionEvent