Question

我想将List [i]的每个项目添加到不同的Jlist中，例如第一个jList会有Hello，bye，good，bad，nice，Ses，Iteme

我想制作4个不同的JList，

第一个与你好，再见，好，坏......
第二个与569.99,551.59,678.99，....
第3个55,52,72，....和
最后一个与jlas，byew，good2

class List
{

    Info[] List;

    public void createList()
    {

        List = new Info[7];

        List[0] = new Info("Hello",569.99,55,"jlas");

        List[1] = new Info("bye",551.59,52,"byew");
        List[2] = new Info("good",678.99,72,"good2");
        List[3] = new Info("bad",4547.959,151,"bad2");
        List[4] = new Info("nice",3554.99,235,"wii-U.jpg");
        List[5] = new CInfo("Ses",1140.99,4,"das");
        List[6] = new Info("Iteme",584.95,5,"sade");    


    }
}

Answer 1

将所有值添加到ListModel

DefaultListModel model = new DefaultListModel();
for (Info info : List) {
    model.addElement(model);
}

然后将此模型添加到每个JList s ...

JList list1 = new JList(model);
JList list2 = new JList(model);
JList list3 = new JList(model);
JList list4 = new JList(model);

现在，这里有一个时髦的部分，为你想要显示数据的每种不同方式创建一个ListCellRenderer ......

import java.awt.Component;
import javax.swing.DefaultListCellRenderer;
import javax.swing.JList;

public class ListTest {

    public static void main(String[] args) {

    }

    public class InfoNameListCellRenderer extends DefaultListCellRenderer {

        @Override
        public Component getListCellRendererComponent(JList<?> list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
            if (value instanceof Info) {
                Info info = (Info)value;
                value = info.getName(); // Or what ever getter you have available for such things
            }
            return super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus); 
        }



    }

}

并将其应用于相应的列表......

list1.setCellRenderer(new InfoNameListCellRenderer());

请记住，模型数据的模型是模型，渲染器负责渲染数据。请勿更改模型以满足渲染要求。

请查看Concepts: Editors and Renderers和Writing a Custom Cell Renderer了解详情

如何将其添加到JList

1 个答案: