tomingmidlet.java~136~

在游戏中打开通明通道

import java.io.IOException;
import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
/**
 *
 * @author Jagie
 *
 */
public class TomingMIDlet extends MIDlet {
    Canvas c = new TCanvas();
    public TomingMIDlet() {
    }
    protected void startApp() throws MIDletStateChangeException {
        Display.getDisplay(this).setCurrent(c);
    }
    protected void pauseApp() {
        // TODO Auto-generated method stub
    }
    protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
        // TODO Auto-generated method stub
    }
}
/**
 *
 * @author Jagie
 *
 */
//import java.io.IOException;
//
//import javax.microedition.lcdui.Canvas;
//import javax.microedition.lcdui.Graphics;
//import javax.microedition.lcdui.Image;

class TCanvas extends Canvas implements Runnable{
  Image image;//要处理的图片
  int argb[];
  int a= 255;//把象素的透明度初始值设置为0，然后在线程中不断地增加这个值

 public TCanvas() {
  super();
  try {
   image = Image.createImage("/jiemian.png");//导入图片
  } catch (IOException e) {
   e.printStackTrace();
  }
  argb = new int[image.getWidth()*image.getHeight()];
  image.getRGB(argb,0,image.getWidth(),0,0,image.getWidth(),image.getHeight());//获得图片的ARGB值
  int temp;

  for(int i=0;i<argb.length;i++)
  {
   argb[i]=(a<<24) | (argb[i] & 0x00FFFFFF);// 修改最高2位的值
  }
  Thread t = new Thread(this);
  t.start();
 }

 protected void paint(Graphics g) {
  g.setColor(0xffffff);
  g.fillRect(0,0,getWidth(),getHeight());
  g.setColor(0);
  //g.drawImage(image,0,0,Graphics.TOP|Graphics.LEFT);
  g.drawRGB(argb,0,image.getWidth(),0,100,image.getWidth(),image.getHeight(),true);// 画象素数组
  g.drawString(a+"",10,90,Graphics.TOP|Graphics.LEFT);
 }

 public void run()
 {
  while(a>0)
  {
   //改变象素内容
   for(int i=0;i<argb.length;i++)
   {
    argb[i]=(a<<24) | (argb[i] & 0x00FFFFFF);// 修改最高2位的值
   }
   repaint();//重绘屏幕
   a++;
   try {
    Thread.sleep(100);
   } catch (InterruptedException e) {
    e.printStackTrace();
   }
  }
 }
}