editform.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 javax.microedition.lcdui.*;
import pp.rss.reader.midlet.RSSReader;
import pp.rss.reader.model.RSSSourceEntry;
/**
 *
 * @author Administrator
 */
public class EditForm extends Form implements CommandListener
{
    private Command cmdBack,cmdSave;
    private TextField description,link;
    private RSSReader midlet;
    private int index;
    public EditForm(RSSReader midlet)
    {
        super("修改RSS Feed源");
        this.midlet=midlet;
        cmdSave=new Command("保存",Command.SCREEN,1);
        cmdBack=new Command("返回",Command.BACK,2);
        description=new TextField(null,null,RSSReader.MAX_RSS_SOURCE,TextField.ANY);
        link=new TextField(null,null,RSSReader.MAX_RSS_LINK,TextField.ANY);
        this.addCommand(cmdSave);
        this.addCommand(cmdBack);
        this.append(description);
        this.append(link);
        this.setCommandListener(this);
    }
    public void setDescription(String desc)
    {
        description.setString(desc);
    }
    public void setLink(String link)
    {
        this.link.setString(link);
    }
    public void setIndex(int index)
    {
        this.index=index;
    }
    public void commandAction(Command command,Displayable displayable)
    {
        if(command==cmdSave)
        {
            description.setString(description.getString().replace(RSSReader.SEPARATOR_CHAR,' '));
            RSSSourceEntry item=new RSSSourceEntry(description.getString(),link.getString());
            midlet.vecRSSSource.setElementAt(item, index);
            midlet.lsRSSSource.set(index, description.getString(), null);
        }
        midlet.showSourceForm();
    }
}