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我正在写java小程序。我想打开一个新框架，内容实际存储在我的 Applet 中。我正在通过按钮打开新框架：

openInNew.addActionListener(new java.awt.event.ActionListener()
{
    public void actionPerformed(ActionEvent e) 
    {
        createDialog();
    }
});

//this Function retrieves Frame for applet
public Frame getParentFrame( Component child )
{
    Container c = child.getParent();
    while ( c != null )
        {
        if ( c instanceof Frame )
            {
            return ( Frame ) c;
            }
        c = c.getParent();
        }
    return null;
}

private void createDialog()
{
Frame f=getParentFrame(openInNew); //openInNew is a button to Open a JDialog
    frame = new AppletFrame("NEW FRAME",jContentPane);
    frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    frame.setVisible(true);
}

这是 的构造函数AppletFrame：

public AppletFrame(String string, JPanel jContentPane, Frame f) {
super(f,string);
    this.setContentPane(jContentPane);
    this.setSize(790, 650);

    this.addWindowListener(new WindowAdapter() 
    {
        public void windowClosing(WindowEvent e) 
        {
            removeAll();
            FileListViewer.destroyFrame();
        }
    });
}

public static void destroyFrame()
{
    jContentPane= (JPanel) frame.getContentPane();
jContentPane.repaint();  /*this one should repaint the Applet View, but the result
              * is still the same. jContentPane is not null,
              * it is filled with acutal components. */
jContentPane.setVisible(true);
frame.dispose();
frame.setVisible(false);
frame=null;
}

我的问题是这jConentPane是一个引用，所以当我打开我的AppletFrame对象时，我的基本 Applet 框架中没有存储任何内容。我想再次设置jContentPane为FileListViewer，但我不能在 static 中引用非静态方法destroyFrame()。

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1 回答 1

3
于 2012-04-23T11:04:01.627 回答