Component.AccessibleAWTComponent.AccessibleAWTFocusHandler (Java SE 21 & JDK 21)

java.lang.Object

java.awt.Component.AccessibleAWTComponent.AccessibleAWTFocusHandler

所有已实现的接口:: FocusListener, Serializable, EventListener

封闭类:: Component.AccessibleAWTComponent

protected class Component.AccessibleAWTComponent.AccessibleAWTFocusHandler extends Object implements FocusListener, Serializable

当焦点事件发生时，触发PropertyChange监听器（如果已注册）

自 JDK 版本:

1.3

参见:

Constructor Summary

Constructors

Modifier

Constructor

Description

protected

AccessibleAWTFocusHandler()

构造一个AccessibleAWTFocusHandler。
Method Summary

Modifier and Type

Method

Description

void

focusGained(FocusEvent event)

当组件获得键盘焦点时调用。

void

focusLost(FocusEvent event)

当组件失去键盘焦点时调用。

Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- AccessibleAWTFocusHandler
  
  protected AccessibleAWTFocusHandler()
  
  构造一个AccessibleAWTFocusHandler。
Method Details
- focusGained
  
  public void focusGained(FocusEvent event)
  
  从接口复制的描述: FocusListener
  
  当组件获得键盘焦点时调用。
  
  指定者:
  
  focusGained 在接口 FocusListener
  
  参数:
  
  event - 要处理的事件
- focusLost
  
  public void focusLost(FocusEvent event)
  
  从接口复制的描述: FocusListener
  
  当组件失去键盘焦点时调用。
  
  指定者:
  
  focusLost 在接口 FocusListener
  
  参数:
  
  event - 要处理的事件