mp3playmp3play

package qianxia.mp3player; import java.io.StringReader; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.List; import javax.xml.parsers.SAXParserFactory; import org.xml.sax.InputSource; import org.xml.sax.XMLReader; import qianxia.download.HttpDownloader; import qianxia.model.Mp3Info; import qianxia.my3player.R; import qianxia.xml.Mp3ListContentHandler; import android.app.ListActivity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.ListView; import android.widget.SimpleAdapter; public class Mp3ListActivity extends ListActivity { private static final int UPDATE = 1;// 更新列表 private static final int ABOUT = 2;// 关于 private List<Mp3Info> mp3Infos=null; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); updateListView(); } @Override public boolean onCreateOptionsMenu(Menu menu) { menu.add(0, UPDATE, 1, R.string.mp3list_update); menu.add(0, ABOUT, 2, R.string.mp3list_about); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == UPDATE) { updateListView(); } else if (item.getItemId() == ABOUT) { } return super.onOptionsItemSelected(item); } private SimpleAdapter bulidSimpleAdapter(List<Mp3Info> mp3Infos){ List<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>(); for (Iterator iterator = mp3Infos.iterator(); iterator.hasNext();) { Mp3Info mp3Info = (Mp3Info) iterator.next(); HashMap<String, String> map = new HashMap<String, String>(); map.put("mp3_name", mp3Info.getMp3Name()); map.put("mp3_size", mp3Info.getMp3Size()); list.add(map); } SimpleAdapter simpleAdapter = new SimpleAdapter(this, list, R.layout.mp3info_item, new String[] { "mp3_name", "mp3_size" }, new int[] { R.id.mp3_name, R.id.mp3_size }); return simpleAdapter; } private void updateListView(){ String xml = downloadXML("http://192.168.1.101:8080/mp3/resouces.xml"); mp3Infos = parse(xml); SimpleAdapter simpleAdapter=bulidSimpleAdapter(mp3Infos); setListAdapter(simpleAdapter); } private String downloadXML(String urlStr) { HttpDownloader httpDownloader = new HttpDownloader(); String result = httpDownloader.download(urlStr); return result; } private List<Mp3Info> parse(String xmlStr) { SAXParserFactory saxParserFactory = SAXParserFactory.newInstance(); List<Mp3Info> infos = new ArrayList<Mp3Info>(); try { XMLReader xmlReader = saxParserFactory.newSAXParser() .getXMLReader(); Mp3ListContentHandler ma3ListContentHandler = new Mp3ListContentHandler( infos); xmlReader.setContentHandler(ma3ListContentHandler); xmlReader.parse(new InputSource((new StringReader(xmlStr)))); for (Iterator iterator = infos.iterator(); iterator.hasNext();) { Mp3Info mp3Info = (Mp3Info) iterator.next(); System.out.println(mp3Info); } } catch (Exception e) { e.printStackTrace(); } return infos; } @Override protected void onListItemClick(ListView l, View v, int position, long id) { Mp3Info mp3Info=mp3Infos.get(position); System.out.println("mp3Info--->"+mp3Info); super.onListItemClick(l, v, position, id); } }