addinfoscreen.java

一個手機程序(電子詞典),一個不可多得的源碼程序,是學習J2ME的好東東.

package org.zblog.zenghelper.screen.sub;

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.Form;
import org.zblog.zenghelper.util.Navigator;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.ChoiceGroup;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.TextField;
import org.zblog.zenghelper.screen.AddWordScreen;

/**
 * <br><strong>Z英语学习助手－AddWordScreen－添加注释屏幕</strong><br>
 * <br>该屏幕是隶属于AddWordScreen下的子屏幕，用于添加单词的中文解释，以及词性．
 *
 * @author <a href="mailto:[e-mail]">朱传伟</a><br>
 * <a href="http://www.zblog.org">www.zblog.org</a></p>
 * @version <strong>ZEnHelper</strong> Ver 1.0
 */
public class AddInfoScreen extends Form implements CommandListener{
    /**
     * 中文解释
     */
    public TextField word=null;
    /**
     * 解释属性选择
     */
    public ChoiceGroup property=null;

    private AddWordScreen aws=null;
    private Command cancel=null;
    private Command update=null;
    private Command cleanAll=null;


    public AddInfoScreen(AddWordScreen addw) {
        super("添加单词解释");
        aws=addw;
        word=new TextField("解释：","",100,TextField.ANY);
        append(word);
        property=new ChoiceGroup("词性：",ChoiceGroup.EXCLUSIVE);
        property.append("n",null);
        property.append("v",null);
        property.append("adj",null);
        property.append("adv",null);
        property.append(" ",null);
        append(property);
        update=new Command("添加",Command.BACK,1);
        cancel=new Command("取消",Command.ITEM,1);
        cleanAll=new Command("清空全部",Command.ITEM,2);
        addCommand(update);
        addCommand(cancel);
        addCommand(cleanAll);
        setCommandListener(this);
    }

    public void commandAction(Command command, Displayable displayable) {
        String lb=command.getLabel();
        if(lb.equals("添加")){
            int sel=property.getSelectedIndex();
            String pstr=property.getString(sel);
            String w=word.getString();
            if(w!=null&&!(w.trim().equals(""))){
                String str=pstr+"."+w.trim();
                aws.cnWords.addElement(str);
            }
        }
        else if(lb.equals("清空全部")){
            aws.cnWords.removeAllElements();
        }
        Navigator.show(aws);
    }
}