java - 将对象添加到 JList 以在滚动 Pane 上显示时遇到问题

Question

我一直致力于为我制作的对象创建一个defaultlistcellrender，但到目前为止，事实证明将对象添加到JList 非常困难。我附上代码以获取任何建议。谢谢!

public class JTabbedPaneTester extends JFrame 
{
    private List<Human> members = new ArrayList<Human>();
    private JList newbie = new JList();
    private DefaultListModel model = new DefaultListModel();

    public JTabbedPaneTester() throws FileNotFoundException
    {
        super("JTabbedPane Demo");
        JTabbedPane tabbedPane = new JTabbedPane(); 
        JPanel gladiator = new JPanel();
        getContentPane().add(gladiator); 
        tabbedPane.addTab("Gladiator", null, Gladiator, "");
        Box listOfPlayers = Box.createVerticalBox();
        listOfPlayers.add(Box.createRigidArea(new Dimension(100,100)));
        listOfPlayers.setBorder(new TitledBorder("List of Players"));
        JScrollPane playerViewer = new JScrollPane();
        playerViewer.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
        listOfPlayers.add(playerViewer);
        JButton AddIndividual = new JButton("Add a Player");
        listOfPlayers.add(addIndividual);
        gladiator.add(listOfPlayers);
    final HumanListModel modelx = new HumanListModel();
    final JTable newbiex = new JTable(modelx);
    newbiex.setDefaultRenderer(Human.class, new HumanRenderer());
    playerViewer.setViewportView(newbiex);

    addIndividual.addActionListener(new ActionListener()
    {

        public void actionPerformed(ActionEvent event)
        {
                    Human temp;
                try {
                    temp = new Human();     
                    modelx.addHuman(temp);
                        } 
                    catch (FileNotFoundException e) 
                        {
                            e.printStackTrace();
                        }       
                    }
        });
        add(tabbedPane); 
    }
}       

这是这里有人很好地帮助我的渲染器

class HumanRenderer extends DefaultListCellRenderer

        {
           public Component getListCellRendererComponent(JList list, Object value,
              int index, boolean isSelected, boolean cellHasFocus) 
           {


              JLabel label = new JLabel(); 
              if (value != null) 
              {
                 Human human = (Human) value;
                 label.setText(human.getSurname() + ", " + human.getFirstName());
              }

              return label;
           }
        }

Answer 1

您需要将对象添加到模型而不是 jlist 面板中。添加您用于组件的内容。尝试从 jlist 获取模型并使用模型的 addElement 。