transmid.java

J2ME MIDP 2.0 无线设备编程的一些源码

//TransMID.java file
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;

public class TransMID extends MIDlet implements CommandListener
{

    private Command exitCommand;
    private HelloWorldCanvas myCanvas;
    public TransMID()
    {
        exitCommand =new Command("Exit",Command.EXIT,1);
        myCanvas =new HelloWorldCanvas(getAppProperty("Img1"),getAppProperty("Img2"));
        myCanvas.addCommand(exitCommand);
        myCanvas.setCommandListener(this);
    }
    protected void startApp(  ) throws MIDletStateChangeException
    {
        Display.getDisplay(this).setCurrent(myCanvas);
    }

    protected void pauseApp(  )
    {
    }

    protected void destroyApp( boolean p1 )
    {
    }

    public void commandAction(Command c,Displayable d)
    {
        if (c ==exitCommand)
        {
            destroyApp(false);
            notifyDestroyed();
        }
    }
    //internal class HelloWorldCanvas
    public class HelloWorldCanvas extends Canvas
    {
        private String textShow="ResMID";
        Image imgDemo1,imgDemo2;
        public HelloWorldCanvas(String urlImg1,String urlImg2) 
        {
        	try
        	{
	            imgDemo1 = Image.createImage("/demo/duke2.png");
	            imgDemo2 = Image.createImage("/demo/duke2.png");
	        }
	        catch(Exception e)
	        {
	        	System.out.println("Load Img error");
	        }
        }
  
        public void paint(Graphics g) 
        {
            g.setColor(0xffffff);
            g.fillRect(0, 0, getWidth(), getHeight());
            g.drawImage(imgDemo1,0,0,Graphics.TOP|Graphics.LEFT);
            g.drawImage(imgDemo2,4,4,Graphics.TOP|Graphics.LEFT);
        }
  
        protected  void keyPressed(int keyCode) 
        {
        }
      
        protected  void keyReleased(int keyCode) 
        {
        }

        protected  void keyRepeated(int keyCode) 
        {
        }
      
        protected  void pointerDragged(int x, int y) 
        {
        }

        protected  void pointerPressed(int x, int y) 
        {
        }
      
        protected  void pointerReleased(int x, int y) 
        {
        }
    }
}