J2ME颜色选择器

有时在项目中可能会碰到自定义软件皮肤颜色或字体颜色的功能，那么颜色选择器正好派上了用场了。

此类为直接继承自Form类，所以使用时可以直接new 一个ColorSelectorUI对像然后显示即可，

如果要保存设置的颜色值，可以直接在此类中加Command即可。

 

package com.flyeverzhang.test;import javax.microedition.lcdui.CustomItem;import javax.microedition.lcdui.Form;import javax.microedition.lcdui.Gauge;import javax.microedition.lcdui.Graphics;import javax.microedition.lcdui.Item;import javax.microedition.lcdui.ItemStateListener;/** * J2ME 颜色选择器 * @author flyeverzhang * 2009-7-31 */public class ColorSelectorUI extends Form implements ItemStateListener{private Gauge red = new Gauge("R",true,255,0);//红色分量private Gauge green = new Gauge("G",true,255,0);//蓝色分量private Gauge blue = new Gauge("B",true,255,255);//绿色分量private ShowColor sc = null ;public ColorSelectorUI( ) {super("颜色选择器");sc = new ShowColor("颜色预览");this.append(this.red);this.append(this.green);this.append(this.blue);this.append(sc);//注册监听器this.setItemStateListener(this);}/*** 颜色预览窗口* @author flyeverzhang* 2009-7-31*/class ShowColor extends CustomItem {protected ShowColor(String label) {super(label);}protected int getMinContentHeight() {return 30;}protected int getMinContentWidth() {return 150;}protected int getPrefContentHeight(int arg0) {return this.getMinContentHeight();}protected int getPrefContentWidth(int arg0) {return this.getMinContentWidth();}protected void paint(Graphics g, int w, int h) {g.setColor(red.getValue(),green.getValue(),blue.getValue());g.fillRect(0, 0, w - 1, h - 1);}public void reDraw(){this.repaint();}}public void itemStateChanged(Item item) {sc.reDraw();}}