public class BasicTreeUI.FocusHandler extends Object implements FocusListener
| Constructor and Description | 
|---|
| FocusHandler() | 
| Modifier and Type | Method and Description | 
|---|---|
| void | focusGained(FocusEvent e)
              在我们所在的树上激活焦点时调用,重绘铅笔。 
             | 
| void | focusLost(FocusEvent e)
              在我们所在的树上激活焦点时调用,重绘铅笔。 
             | 
public void focusGained(FocusEvent e)
focusGained在界面 
            FocusListener 
           public void focusLost(FocusEvent e)
focusLost在界面 
            FocusListener 
            Submit a bug or feature 
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