JAVA Frame 窗体背景图片，首位相接滚动

//背景图片连续滚动，程序已经跑过。前提！背景图片宽度比窗体长些（1毫米也行，求求了）.

//小白，初学中ing

import java.awt.Graphics; import java.awt.Image; import javax.swing.ImageIcon; import mine.game.util.PropertiesUtil; @SuppressWarnings("serial") public class GameFrame extends MyFrame{ private Image img=ImageUtil.imageLoad("image/bk.jpg"); double movs,speed=1,headmovs; double pWidth,pHeight,bgWidth; @Override public void paint(Graphics g) { //g.drawImage(img, 0, 0, null); //=================================================== pWidth=PropertiesUtil.getValue("Width", "game.properties"); pHeight=PropertiesUtil.getValue("Height", "game.properties"); bgWidth=new ImageIcon(img).getIconWidth(); //movs+=speed; if(bgWidth>pWidth+movs){ g.drawImage(img, 0, 0, (int)pWidth,(int)pHeight, (int)movs, 0, (int)(pWidth+movs), (int)pHeight, null); } if(bgWidth<=pWidth+movs){ headmovs=pWidth+movs-bgWidth; g.drawImage(img, 0, 0, (int)(pWidth-headmovs),(int)pHeight, (int)movs, 0, (int)(bgWidth), (int)pHeight, null); g.drawImage(img,(int)(pWidth-headmovs), 0, (int)pWidth,(int)pHeight, 0, 0, (int)(headmovs), (int)pHeight, null); if(headmovs>=pWidth){ //重新初始化所有变量数据，循环 movs=headmovs-pWidth; } } movs+=speed; //=================================================== } public static void main(String[] args) { GameFrame gf=new GameFrame(); gf.launchFrame(); } }

//=================================

import java.awt.Frame;

import java.awt.Graphics;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.awt.image.BufferedImage; import mine.game.util.PropertiesUtil; @SuppressWarnings("serial") public class MyFrame extends Frame{ private BufferedImage imgBuffer; private Graphics gBuffer; public void launchFrame(){ int wd=800;//PropertiesUtil.getValue("Width", "game.properties"); int ht=600;//PropertiesUtil.getValue("Height", "game.properties"); setSize(wd,ht);    setLocation(0, 0);    setVisible(true);        new PaintThread().start();         addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { System.exit(0); }     }); } //重画窗口线程，内部类 class PaintThread extends Thread{ public void run(){ while(true){ repaint(); try { Thread.sleep(10); } catch (InterruptedException e) { e.printStackTrace(); } } } } /**  * 双缓冲解决，屏闪.此方法在，继承Frame的AWT编程中才有效。JFram不凑效,其有自己先进的实现方式（自己猜的，有时间学学）  */ @Override public void update(Graphics g) { if(imgBuffer==null){ imgBuffer=(BufferedImage)createImage(this.getWidth(),this.getSize().height);//创建图形缓冲 //imgBuffer=new BufferedImage((int)this.getSize().getWidth(),(int)this.getSize().getHeight(),BufferedImage.TYPE_4BYTE_ABGR);//创建图形缓冲 } gBuffer=imgBuffer.getGraphics();//获取图形缓冲区的图形上下文     gBuffer.fillRect(0, 0, this.getWidth(), this.getHeight()); this.paint(gBuffer);//用paint方法中编写的绘图过程对图形缓冲区绘图 gBuffer.dispose();//释放图形上下文资源 g.drawImage(imgBuffer, 0, 0, null); //将图形缓冲区绘制到屏幕上 }

}

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import java.awt.Image; import java.awt.Toolkit; import java.net.URL; public class ImageUtil { public static Image imageLoad(String path){ URL u=ImageUtil.class.getClassLoader().getResource(path); return Toolkit.getDefaultToolkit().getImage(u); } }