Java之简单的图片动态显示（实现类似GIF动画效果）

/*
* Donttai.java
*
* Created on __DATE__, __TIME__
*/

package 动态图;

import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.ImageObserver;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

/**
*
* @author  __USER__
*/
public class Donttai extends javax.swing.JFrame implements Runnable
{

/** Creates new form Donttai */
public Donttai()
{
initComponents();
}

//String path = "E:\\Workspaces\\MyEclipse_9.0\\20120731\\bin\\动态图\\1\\10";
//Java默认文件路径是项目的根目录，所以要手动加上bin及其以下的路径
String path="bin/动态图/花好月圆/10";
int idx = 1;

public void paint(Graphics g)
{
ImageObserver imageObserver = new ImageObserver()
{

@Override
public boolean imageUpdate(Image img, int infoflags, int x, int y,
int width, int height)
{
// TODO Auto-generated method stub
return false;
}
};
try
{
//g.drawImage(ImageIO.read(new File(Donttai.class.getResource("1.png").toString())), 20, 20, imageObserver);
String temp = "";
if (idx <= 9)
temp = path + "0" + idx + ".jpg";
else if (idx >= 10)
{
temp = path + idx + ".jpg";
}
g.drawImage(ImageIO.read(new File(temp)), 100, 50, 400, 300,
imageObserver);
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}

/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
//GEN-BEGIN:initComponents
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents()
{

jButton1 = new javax.swing.JButton();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jButton1.setText("jButton1");

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(
getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(layout.createParallelGroup(
javax.swing.GroupLayout.Alignment.LEADING).addGroup(
javax.swing.GroupLayout.Alignment.TRAILING,
layout.createSequentialGroup()
.addContainerGap(483, Short.MAX_VALUE)
.addComponent(jButton1).addGap(35, 35, 35)));
layout.setVerticalGroup(layout.createParallelGroup(
javax.swing.GroupLayout.Alignment.LEADING).addGroup(
layout.createSequentialGroup().addGap(37, 37, 37)
.addComponent(jButton1)
.addContainerGap(392, Short.MAX_VALUE)));

pack();
}// </editor-fold>
//GEN-END:initComponents

/**
* @param args the command line arguments
*/
public static void main(String args[])
{
//        java.awt.EventQueue.invokeLater(new Runnable()
//        {
//            public void run()
//            {
//                new Donttai().setVisible(true);
//
//            }
//        });
Donttai donttai = new Donttai();
donttai.setVisible(true);
donttai.run();
}

//GEN-BEGIN:variables
// Variables declaration - do not modify
private javax.swing.JButton jButton1;

// End of variables declaration//GEN-END:variables

@Override
public void run()
{
// TODO Auto-generated method stub
while (true)
{
repaint();
if (idx < 16)
idx++;
else
idx = 1;
try
{
Thread.sleep(60);
}
catch (InterruptedException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}

}
}

}