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package newsreader;
import java.io.*;
import java.util.Vector;
import org.kxml2.io.*;
import org.xmlpull.v1.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.io.*;
public class Newsreader extends MIDlet implements CommandListener {
static final String URL = "http://www.newsforge.com/newsforge.xml";
static final String TITLE = "NewsForge";
Vector descriptions = new Vector();
List newsList = new List(TITLE, Choice.IMPLICIT);
TextBox textBox = new TextBox("", "", 256, TextField.ANY);
Display display;
Command backCmd = new Command("Back", Command.BACK, 0);
class ReadThread extends Thread {
public void run() {
try {
HttpConnection httpConnection = (HttpConnection) Connector.open(URL);
System.out.println("before");
KXmlParser parser = new KXmlParser();
System.out.println("after");
parser.setInput(new InputStreamReader(httpConnection.openInputStream()));
System.out.println("after2");
// parser.relaxed = true;
parser.nextTag();
parser.require(XmlPullParser.START_TAG, null, "backslash");
while (parser.nextTag () != XmlPullParser.END_TAG)
readStory(parser);
parser.require(XmlPullParser.END_TAG, null, "backslash");
parser.next();
parser.require(XmlPullParser.END_DOCUMENT, null, null);
} catch (Exception e) {
e.printStackTrace();
descriptions.addElement(e.toString());
newsList.append("Error", null);
}
}
/** Read a story and append it to the list */
void readStory(KXmlParser parser)
throws IOException, XmlPullParserException {
parser.require(XmlPullParser.START_TAG, null, "story");
String title = null;
String description = null;
while (parser.nextTag() != XmlPullParser.END_TAG) {
parser.require(XmlPullParser.START_TAG, null, null);
String name = parser.getName();
String text = parser.nextText();
System.out.println ("<"+name+">"+text);
if (name.equals("title"))
title = text;
else if (name.equals("description"))
description = text;
parser.require(XmlPullParser.END_TAG, null, name);
}
parser.require(XmlPullParser.END_TAG, null, "story");
if (title != null) {
descriptions.addElement(""+description);
newsList.append(title, null);
}
}
}
public void startApp() {
display = Display.getDisplay(this);
display.setCurrent(newsList);
newsList.setCommandListener(this);
textBox.setCommandListener(this);
textBox.addCommand(backCmd);
new ReadThread().start();
}
public void pauseApp() {
}
public void commandAction(Command c, Displayable d) {
if (c == List.SELECT_COMMAND) {
String text = (String) descriptions.elementAt(newsList.getSelectedIndex());
if (textBox.getMaxSize() < text.length())
textBox.setMaxSize(text.length());
textBox.setString(text);
display.setCurrent(textBox);
} else if (c == backCmd)
display.setCurrent(newsList);
}
public void destroyApp(boolean really) {
}
/*
public static void main(String[] argv) {
org.me4se.MIDletRunner.main (new String [] {"Newsreader"});
}
*/
} |
