listCellRenderer 内的 java jcombobox

Question

我想创建一个包含带有数据和 jCombobox 的项目的列表。我使用这个 listCellRenderer :

public class DeliveryListCellRenderer extends JPanel implements ListCellRenderer{

     JLabel[] lbl = new JLabel[2];  
     JComboBox combo;

  public DeliveryListCellRenderer()  
  {  
    setLayout(new GridLayout(0,2,15,0));  
    lbl[0] = new JLabel("",JLabel.RIGHT);  
    add(lbl[0]);  
    lbl[1] = new JLabel("",JLabel.LEFT);  
    add(lbl[1]);
    String[] timeZones = {"timeZone 1", "timeZone 2", "timeZone 3", "timeZone 4"};

    combo = new JComboBox(timeZones); 
    combo.setSelectedIndex(1);

    add(combo);
  }  
  public Component getListCellRendererComponent(JList list,Object value,  
                      int index,boolean isSelected,boolean cellHasFocus)  
  {  
    Delivery delivery = (Delivery)value;  
    lbl[0].setText("X : "+delivery.getNode().getX());  
    lbl[1].setText("Y : "+delivery.getNode().getY());
    if(isSelected) setBackground(Color.CYAN);  
    else setBackground(Color.WHITE);  
    return this;  
  }  
}

当我运行应用程序时，一切都显示正常，但当我单击组合框时没有任何反应。

有人有想法吗？提前致谢。

Answer 1

When I run the application, everything appears ok, but nothing happens when I click on the combobox.

• 这不是 Renderer 的工作(当我运行应用程序时，一切都显示正常)，必须使用 XxxEditor

• 基本上这对于 JList 是不可能的，请查看 JTable

• JTable with one Column and/or without JTableHeader