fullscreenmid.java

J2ME MIDP 2.0 无线设备编程的一些源码

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

public class fullScreenMID extends MIDlet implements CommandListener
{

    private Command exitCommand;
    private DemoCanvas myCanvas;
    public fullScreenMID()
    {
        exitCommand =new Command("Exit",Command.EXIT,1);
        myCanvas =new DemoCanvas();
        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 DemoCanvas
    public class DemoCanvas extends Canvas
    {
        private String textShow="";
        public DemoCanvas() 
        {
        }
  
        public void paint(Graphics g) 
        {
            g.setColor(0xffffff);
            g.fillRect(0, 0, getWidth(), getHeight());
            g.setColor(0x000000);
            g.drawLine(0,0, getWidth(), getHeight());            
            g.drawLine(getWidth(),0, 0, getHeight());
            
            g.drawString("*:fullScreen",0,20,Graphics.TOP|Graphics.LEFT);
            g.drawString("#:normal",0,40,Graphics.TOP|Graphics.LEFT);
        }
        protected void sizeChanged(int w,int h)
        {
            System.out.println("sizeChanged( "+ w +","+h +" )");
        }
        protected  void keyPressed(int keyCode) 
        {
            if(keyCode == KEY_STAR)
            {
                setFullScreenMode(true);
                this.repaint();
            }
            else if(keyCode == KEY_POUND)
            {
                setFullScreenMode(false);
                this.repaint();
            }
        }
    }
}