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Controller.java：源码内容

							/*
 * Controller.java
 *
 * Created on April 21, 2010, 1:41 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */
package com.MOM.controller;
import com.MOM.Constants;
import com.MOM.resources.Resources;
import com.framework.EventManager;
import com.framework.FrameWorkMidlet;
import com.framework.SoftkeyBar;
import javax.microedition.lcdui.Graphics;
/**
 *
 * @author Tejaswi
 */
public class Controller implements EventManager{
    
    private static Controller instance;
    // private constructor for making class as singleton
    private Controller() {
        
    }
    public static synchronized Controller getInstance()
    {
        if(instance == null)
        {
            instance = new Controller();
        }
        return instance;
    }
    public void event(int eventId, Object source, Object data) {
        if(source instanceof SoftkeyBar )
       {
           SoftkeyBar sotKey = ((SoftkeyBar)source);
           if(sotKey.getSoftKeyText(Graphics.LEFT).equals(Constants.EXIT_STRING) && eventId == LEFT_SOFT_KEY_PRESSED)
           {
               FrameWorkMidlet.getInstance().destroyApp(true);
               return;
           }
           if(sotKey.getSoftKeyText(Graphics.RIGHT).equals(Constants.EXIT_STRING) && eventId == RIGHT_SOFT_KEY_PRESSED)
           {
               FrameWorkMidlet.getInstance().destroyApp(true);
               return;
           }
       }
    }
}

						