titlelist.java

基于J2ME的RSS阅读器

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package pp.rss.reader.ui;
import java.util.*;
import javax.microedition.lcdui.*;
import pp.rss.reader.midlet.RSSReader;
import pp.rss.reader.model.RSSParser;
/**
 *
 * @author Administrator
 */
public class TitleList extends List implements CommandListener
{
    private Command back;
    private RSSReader midlet;
    private Vector vecTitle,vecDesc;
    public TitleList(RSSReader midlet)
    {
        super("文章标题",List.IMPLICIT);
        this.midlet=midlet;
        back=new Command("返回",Command.BACK,1);
        this.addCommand(back);
        this.setCommandListener(this);
        vecTitle=new Vector();
        vecDesc=new Vector();
    }
    public void clearTitle()
    {
        vecTitle.removeAllElements();
        vecDesc.removeAllElements();
        this.deleteAll();
    }
    public void getTitles(String source)
    {
        vecTitle.removeAllElements();
        vecDesc.removeAllElements();
        this.deleteAll();
        RSSParser parser=new RSSParser(midlet,source,midlet.fmInfo,this);
        parser.start();
    }
    public void newTitle(String title,String desc)
    {
        vecTitle.addElement(title);
        vecDesc.addElement(desc);
        this.append(title, null);
    }    
    public void commandAction(Command command,Displayable displayable)
    {
        if(command==List.SELECT_COMMAND)
        {
            System.out.println("Show Articles !");
            String item=(String)vecTitle.elementAt(this.getSelectedIndex());
            midlet.setArticleTitle(item);
            item=(String)vecDesc.elementAt(this.getSelectedIndex());
            midlet.setArticleContent(item);
            midlet.showArticleForm();
        }else
        {
            midlet.showSourceForm();
        }
    }
}