Question

java Jlist问题

如何让JList的不同列表项显示不同的颜色？？？
比如，让奇数行显示蓝色，偶数行显示黑色？？

如何设置某行颜色后，使其不因为鼠标的选择而变颜色。。不是setSelectionBackground()方法！！
给个代码例子。。。给代码！给代码！！
高手解决！！

Answer 1

package com.akfucc.zhidao;

import java.awt.Color;
import java.awt.Component;

import javax.swing.DefaultListCellRenderer;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.ListModel;

/**
* @description: http://zhidao.baidu.com/question/124865850.html
* @author akfucc
* @date Nov 9, 2009
*
*/
public class Zhidao extends JFrame {
ListModel model;
JList listTest;

public Zhidao() {
super("JList 测试");

listTest = new JList(new String[] { "Item1", "Item2", "Item3", "Item4",
"Item4" });

// 设置这个东西
listTest.setCellRenderer(new MyRenderer());
this.add(listTest);

// //

this.setSize(200, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setVisible(true);
}

// 重点所在
private static class MyRenderer extends DefaultListCellRenderer {

public Component getListCellRendererComponent(JList list, Object value,
int index, boolean isSelected, boolean cellHasFocus) {
super.getListCellRendererComponent(list, value, index, isSelected,
cellHasFocus);
if (index % 2 == 0) {
setBackground(Color.red);
} else {
setBackground(Color.green);
}
return this;
}

}

public static void main(String[] args) {
new Zhidao();
}
}

Answer 2

1111111111

Answer 3

import java.awt.Color;
import java.awt.Component;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.ListCellRenderer;

class MyCellRenderer extends JLabel implements ListCellRenderer {

public MyCellRenderer() {
setOpaque(true);
}

public Component getListCellRendererComponent(JList list,
Object value,
int index,
boolean isSelected,
boolean cellHasFocus) {
this.setForeground(Color.WHITE);
setText(value.toString());

if (index % 2 == 0) {
setBackground(Color.BLACK);
} else {
setBackground(Color.BLUE);
}

return this;
}
}

public class Test {

public static void main(String[] args) {
MyCellRenderer cellRenderer = new MyCellRenderer();
JList list = new JList(new Object[]{1, 2, 3, 4, 5, 6});
list.setCellRenderer(cellRenderer);
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(3);
frame.setContentPane(list);
frame.setVisible(true);
}
}