作者：未知 来源：月光软件站 加入时间：2005-5-13　月光软件站

/*
 * gaugelet.java
 *
 * Created on 2005年4月15日, 下午5:19
 */

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

/**
 *
 * @author  Administrator
 * @version
 */
public class gaugelet extends MIDlet implements CommandListener{
   
    private Gauge aGauge;
    private Form aForm;
    private Command exitCommand;
    private Command okCommand;
    private Display aDisplay;
    private Alert anAlert;
   
    public gaugelet(){
       
        aForm=new Form("GaugeTest");
        exitCommand=new Command("EXIT",Command.EXIT,1);
        okCommand=new Command("OK",Command.OK,1);
        aGauge=new Gauge("gaugedisplay",true,100,50);
        anAlert=new Alert("Value",null,null,AlertType.INFO);
       
        aForm.addCommand(exitCommand);
        aForm.addCommand(okCommand);
        aForm.append(aGauge);
        aForm.setCommandListener(this);
       
    }
    public void startApp() {
       
        aDisplay=Display.getDisplay(this);
        aDisplay.setCurrent(aForm);
    }
   
    public void pauseApp() {
    }
   
    public void destroyApp(boolean unconditional) {
    }
   
    public void commandAction(Command c,Displayable d){
       
        String s="The Value is ";
        int i;
       
        if(c==exitCommand){
           
            destroyApp(false);
            notifyDestroyed();
        }
       
        else{
           
            i=aGauge.getValue();
            s+=Integer.toString(i);
            anAlert.setString(s);
            aDisplay.setCurrent(anAlert,aForm);
           
           
        }
    }
}

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