mainmenu.java

来自「JAVAME Core technology and best practice」· Java 代码 · 共 32 行

package com.j2medev.chapter3;

import javax.microedition.lcdui.*;

public class MainMenu extends List implements CommandListener{
    
    public static final String[] item = new String[]{"New Article","New Picture","Settings","About us"};
    
    public MainMenu() {
        super("MainMenu",List.IMPLICIT,item,null);
        setCommandListener(this);
    }
    
    public void commandAction(Command cmd,Displayable displayable){
        if(cmd == List.SELECT_COMMAND){
            String label = getString(getSelectedIndex());
            if(label.equals(item[0])){
                StackMIDlet.moveNext(new ArticleForm());
            }else if(label.equals(item[1])){
                //do nothing here
            }else if(label.equals(item[2])){
                //do nothing here
            }else if(label.equals(item[3])){
                StackMIDlet.moveNext(new AboutForm());
            }
        }else if(cmd.getCommandType()==Command.EXIT || cmd.getCommandType()==Command.BACK){
            StackMIDlet.handleCommandAction(cmd,displayable);
        }
    }
    
}