很简单,看完例子就会明白
/**//*
*用十副图像(T1.gif~T10.gif)产生一个动画
*
*/
import java.applet.Applet;
import java.awt.HeadlessException;
import java.awt.*;
public class DoubleBuffer extends Applet
...{
private Image[] imgs;
private Image imgBuf;
//屏幕外图像缓存
private Graphics gBuf;
private int totalImages=10;
private int currentImage;
private int i=0;
public void init()
...{
imgBuf=createImage(600,400);
gBuf=imgBuf.getGraphics();
gBuf.setColor(Color.white);
gBuf.fillRect(0,0,600,400);
imgs=new Image[totalImages];
for(int i=0;i<totalImages;i++)
...{
imgs[i]=getImage(getDocumentBase(),"T"+(i+1)+".gif");
}
}
public void start()
...{
currentImage=0;
gBuf.drawImage(imgs[currentImage],0,0,this);
currentImage=1;
}
public void paint(Graphics g)
...{
g.drawImage(imgBuf,0,0,this);
gBuf.fillRect(0, 0, 600, 400);
gBuf.drawImage(imgs[currentImage], 0, 0, this);
currentImage = ++currentImage % 10;
}
try ...{
Thread.sleep(500);
}
catch (Exception ex) ...{
ex.printStackTrace();
}
repaint();
}
//减轻闪烁 直接调用panit()
public void update(Graphics g)
...{
paint(g);
}
}
*用十副图像(T1.gif~T10.gif)产生一个动画
*
*/
import java.applet.Applet;
import java.awt.HeadlessException;
import java.awt.*;
public class DoubleBuffer extends Applet
...{
private Image[] imgs;
private Image imgBuf;
//屏幕外图像缓存
private Graphics gBuf;
private int totalImages=10;
private int currentImage;
private int i=0;
public void init()
...{
imgBuf=createImage(600,400);
gBuf=imgBuf.getGraphics();
gBuf.setColor(Color.white);
gBuf.fillRect(0,0,600,400);
imgs=new Image[totalImages];
for(int i=0;i<totalImages;i++)
...{
imgs[i]=getImage(getDocumentBase(),"T"+(i+1)+".gif");
}
}
public void start()
...{
currentImage=0;
gBuf.drawImage(imgs[currentImage],0,0,this);
currentImage=1;
}
public void paint(Graphics g)
...{
g.drawImage(imgBuf,0,0,this);
gBuf.fillRect(0, 0, 600, 400);
gBuf.drawImage(imgs[currentImage], 0, 0, this);
currentImage = ++currentImage % 10;
}
try ...{
Thread.sleep(500);
}
catch (Exception ex) ...{
ex.printStackTrace();
}
repaint();
}
//减轻闪烁 直接调用panit()
public void update(Graphics g)
...{
paint(g);
}
}