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JAVA Frame 窗體背景圖片，首位相接滾動(dòng)代碼實(shí)例

更新時(shí)間：2017年04月14日 09:46:50 作者：hongyu83916

這篇文章主要介紹了JAVA Frame 窗體背景圖片，首位相接滾動(dòng)代碼示例,需要的朋友可以參考下復(fù)制代碼

背景圖片連續(xù)滾動(dòng)，程序已經(jīng)跑過(guò)。前提！背景圖片寬度比窗體長(zhǎng)些，代碼如下：

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){
//重新初始化所有變量數(shù)據(jù)，循環(huán)
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);
} 
});
}
//重畫(huà)窗口線(xiàn)程，內(nèi)部類(lèi)
class PaintThread extends Thread{
public void run(){
while(true){
repaint();
try {
Thread.sleep(10);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
/**
 * 雙緩沖解決，屏閃.此方法在，繼承Frame的AWT編程中才有效。JFram不湊效,其有自己先進(jìn)的實(shí)現(xiàn)方式（自己猜的，有時(shí)間學(xué)學(xué)）
 */
@Override
public void update(Graphics g) {
if(imgBuffer==null){
imgBuffer=(BufferedImage)createImage(this.getWidth(),this.getSize().height);//創(chuàng)建圖形緩沖
//imgBuffer=new BufferedImage((int)this.getSize().getWidth(),(int)this.getSize().getHeight(),BufferedImage.TYPE_4BYTE_ABGR);//創(chuàng)建圖形緩沖
}
gBuffer=imgBuffer.getGraphics();//獲取圖形緩沖區(qū)的圖形上下文
 gBuffer.fillRect(0, 0, this.getWidth(), this.getHeight());
this.paint(gBuffer);//用paint方法中編寫(xiě)的繪圖過(guò)程對(duì)圖形緩沖區(qū)繪圖
gBuffer.dispose();//釋放圖形上下文資源
g.drawImage(imgBuffer, 0, 0, null);//將圖形緩沖區(qū)繪制到屏幕上
}
}
//====================
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);
}
}

希望以上內(nèi)容代碼對(duì)您有所幫助

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