j2me中时间特效

j2me中时间倒计时特效

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.Sprite;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class time1 extends MIDlet {
 Display dis;
 mycanvas mc;

 public time1() {
  mc=new mycanvas();
  dis=Display.getDisplay(this);
 }

 protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
  // TODO Auto-generated method stub

 }

 protected void pauseApp() {
  // TODO Auto-generated method stub

 }

 protected void startApp() throws MIDletStateChangeException {
  dis.setCurrent(mc);
  new Thread(mc).start();

 }
class mycanvas extends Canvas implements Runnable{
 int time1=30;
 Sprite sp1; // 定义特效数字图片精灵
 Image img; //艺术数字效果图
 public mycanvas(){
  try{
   img=Image.createImage("/nums.png");
  }catch(Exception e){}
  
  sp1=new Sprite(img,img.getWidth()/10,img.getHeight());
 }

 protected void paint(Graphics g) {
  g.setColor(255,255,255);
  g.fillRect(0, 0, this.getWidth(), this.getHeight());
  sp1.setFrame(time1/10);         //用来显示当前帧
  sp1.setPosition(50, 60);
  sp1.paint(g);
  sp1.setFrame(time1%10);
  sp1.setPosition(56, 60);
  sp1.paint(g);
  
 }

 public void run() {
  long t1,t2;
  t1=System.currentTimeMillis();       //获取系统时间单位毫秒
  while(time1>0){                             //
   t2=System.currentTimeMillis();     //获得系统下一秒
   
   if(t2-t1>=1000){                   
    time1-=(t2-t1)/1000;              //时间校正以免产生误差
       t1=t2;
   }
   if(time1<=0){                         //当
    System.out.print("倒计时结束!");
   }
   try {
    Thread.sleep(60);
   } catch (InterruptedException e) {
    e.printStackTrace();
   }
   repaint();
  }
  
 }
 
}
}