Android Rss订阅源码Demo-IT计算机-毕业设计.zip

package com.msi.androidrss; import android.app.Activity; import android.os.Bundle; import android.view.*; import android.widget.TextView; import android.widget.ListView; import android.widget.AdapterView; import android.widget.ListAdapter; import android.widget.ArrayAdapter; import android.widget.AdapterView.OnItemClickListener; import android.util.Log; import java.util.ArrayList; import java.net.URL; import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParserFactory; import org.xml.sax.InputSource; import org.xml.sax.XMLReader; import android.content.Intent; import com.msi.androidrss.ShowDescription; public class RSSReader extends Activity implements OnItemClickListener { public final String RSSFEEDOFCHOICE = "http://www.ibm.com/developerworks/views/rss/customrssatom.jsp?zone_by=XML&zone_by=Java&zone_by=Rational&zone_by=Linux&zone_by=Open+source&zone_by=WebSphere&type_by=Tutorials&search_by=&day=1&month=06&year=2007&max_entries=20&feed_by=rss&isGUI=true&Submit.x=48&Submit.y=14"; //指定感兴趣的 RSS 提要 public final String tag = "RSSReader"; private RSSFeed feed = null; /** Called when the activity is first created. */ public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.main); // go get our feed! feed = getFeed(RSSFEEDOFCHOICE); // display UI UpdateDisplay(); } private RSSFeed getFeed(String urlToRssFeed) { try { // setup the url获取感兴趣的 RSS 提要 URL url = new URL(urlToRssFeed); // create the factory SAXParserFactory factory = SAXParserFactory.newInstance(); // create a parser SAXParser parser = factory.newSAXParser(); // create the reader (scanner) XMLReader xmlreader = parser.getXMLReader(); // instantiate our handler RSSHandler theRssHandler = new RSSHandler(); // assign our handler xmlreader.setContentHandler(theRssHandler); // get our data via the url class InputSource is = new InputSource(url.openStream()); // perform the synchronous parse xmlreader.parse(is); // get the results - should be a fully populated RSSFeed instance, or null on error return theRssHandler.getFeed(); } catch (Exception ee) { // if we have a problem, simply return null return null; } } public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); menu.add(0,0,0,"Choose RSS Feed"); menu.add("Refresh"); Log.i(tag,"onCreateOptionsMenu"); return true; } public boolean onOptionsItemSelected(MenuItem item){ switch (item.getItemId()) { case 0: Log.i(tag,"Set RSS Feed"); return true; case 1: Log.i(tag,"Refreshing RSS Feed"); return true; } return false; } private void UpdateDisplay() { TextView feedtitle = (TextView) findViewById(R.id.feedtitle); TextView feedpubdate = (TextView) findViewById(R.id.feedpubdate); ListView itemlist = (ListView) findViewById(R.id.itemlist); if (feed == null) { feedtitle.setText("No RSS Feed Available"); return; } feedtitle.setText(feed.getTitle()); feedpubdate.setText(feed.getPubDate()); ArrayAdapter<RSSItem> adapter = new ArrayAdapter<RSSItem>(this,android.R.layout.simple_list_item_1,feed.getAllItems()); itemlist.setAdapter(adapter); itemlist.setOnItemClickListener(this); itemlist.setSelection(0); } public void onItemClick(AdapterView parent, View v, int position, long id) { Log.i(tag,"item clicked! [" + feed.getItem(position).getTitle() + "]"); Intent itemintent = new Intent(this,ShowDescription.class); Bundle b = new Bundle(); b.putString("title", feed.getItem(position).getTitle()); b.putString("description", feed.getItem(position).getDescription()); b.putString("link", feed.getItem(position).getLink()); b.putString("pubdate", feed.getItem(position).getPubDate()); itemintent.putExtra("android.intent.extra.INTENT", b); startActivity(itemintent); } }