Know your Mobile – A simple j2me application
Posted by mahmud ahsan on February 28, 2008 in
Java/J2me | No Comments
This is a very simple code of j2me. By implementing it, and running it by your mobile device, you could learn some attributes of Java configuration of your mobile device.
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class AttributesMIDlet extends MIDlet{
private Display display;
private Command cExit;
public void startApp(){
display = Display.getDisplay(this);
cExit = new Command('Quit', Command.EXIT, 0);
Canvas canvas = new DummyCanvas();
Runtime runtime = Runtime.getRuntime();
Form form = new Form('Attributes');
form.append(new StringItem('Know Your Mobile', ''));
form.append(new StringItem('Total Memory:', String.valueOf(runtime.totalMemory()/1024)+'Kb'));
form.append(new StringItem('Free Memory:', String.valueOf(runtime.freeMemory()/1024)+'Kb'));
form.append(new StringItem('n', null));
form.append(System.getProperty('microedition.configuration'));
form.append(System.getProperty('microedition.profiles'));
boolean isColor = display.isColor();
form.append(new StringItem(isColor ? 'Colors:': 'Grays:', String.valueOf(display.numColors())));
form.append(new StringItem('Width: ', String.valueOf(canvas.getWidth())));
form.append(new StringItem('Height:', String.valueOf(canvas.getHeight())));
form.append(new StringItem('Repeat:', String.valueOf(canvas.hasRepeatEvents())));
form.append(new StringItem('Double Buff:', String.valueOf(canvas.isDoubleBuffered())));
form.addCommand(cExit);
form.setCommandListener(
new CommandListener(){
public void commandAction(Command c, Displayable d){
if (c == cExit){
destroyApp(false);
notifyDestroyed();
}
}
}
);
display.setCurrent(form);
}
public void pauseApp(){
}
public void destroyApp(boolean unconditional){
}
}
class DummyCanvas extends Canvas{
public void paint(Graphics g){
;
}
}
