J2ME相册

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package hello;

import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import java.io.*;
/**
 * @author Administrator
 */
public class ImageItemDemo extends MIDlet implements CommandListener{
    private Display display;
    private Form form;
    private Command exit;
    private Command next;

    //声明存放图片的Image数组
    private Image[] image;
    //声明ImageItem组件
    private ImageItem imageItem;
    //声明图片循环变量
    private int i=0;
    public ImageItemDemo()
    {
        display=Display.getDisplay(this);
        exit=new Command("Exit",Command.EXIT,1);
        next=new Command("Next",Command.ITEM,2);
        form=new Form("照片");
        form.addCommand(exit);
        form.addCommand(next);
        form.setCommandListener(this);

        try
        {
            //创建Image数组
            image=new Image[3];
            //使用循环遍历的方式，通过对应的图片创建Image对象
            for ( ;i<3;i++)
            {
                //System.out.println("/"+i+".png");
                ///0.png  image[i]=Image.createImage("/"+i+".png");
                image[i]=Image.createImage("/"+i+".png");
                //image[i] = Image.createImage("/0.png");
                //System.out.println("/"+i+".png");
              
            }
            imageItem=new ImageItem(null,image[0],ImageItem.LAYOUT_NEWLINE_BEFORE | ImageItem.LAYOUT_CENTER | ImageItem.LAYOUT_NEWLINE_AFTER,"Logo Image");

            form.append(imageItem);
        }
        catch (java.io.IOException error)
        {
            Alert alert=new Alert("Error","不能显示图片",null,null);
            alert.setTimeout(Alert.FOREVER);
            alert.setType(AlertType.ERROR);
            display.setCurrent(alert);
        }
       

    }
    public void startApp() {
        display.setCurrent(form);
    }

    public void pauseApp() {
    }

    public void destroyApp(boolean unconditional) {
    }

    public void commandAction(Command c, Displayable d) {
        if (c==exit)
        {
            destroyApp(false);
            notifyDestroyed();
        }
        else if (c==next)
        {
           
            if (i==3)
            {
                i=0;
            }
            imageItem.setImage(image[i]);
            //System.out.println(i);
            i++;
        }
    }
}

 

资源文件中增加0.png,1.png,2.png