gistfile1.java

package com.yobo.iceskysl;

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 com.yobo.iceskysl.album.AlbumFeed;
import com.yobo.iceskysl.album.AlbumItem;
import com.yobo.iceskysl.album.AlbumItemHandler;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;

public class Albums extends Activity implements OnItemClickListener {

	public final String ALL_ALBUMS = "http://1stlog.1sters.com/albums.xml";
	// Identifiers for option menu items
	private static final int ALBUM_SONGES = Menu.FIRST + 1;
	private static final int ALBUM_INFOS = ALBUM_SONGES + 1;
	private static final int ALBUM_BACK = ALBUM_INFOS + 1;

	public final String tag = "Albums";
	private AlbumFeed feed = null;

	/** Called when the activity is first created. */

	public void onCreate(Bundle icicle) {
		super.onCreate(icicle);
		setContentView(R.layout.albums);

		// go get our feed!
		feed = getFeed(ALL_ALBUMS);

		// display UI
		UpdateDisplay();

	}

	private AlbumFeed getFeed(String urlToRssFeed) {
		try {
			// setup the url
			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
			AlbumItemHandler albumHandler = new AlbumItemHandler();
			// assign our handler
			xmlreader.setContentHandler(albumHandler);
			// 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 albumHandler.getFeed();
		} catch (Exception ee) {
			// if we have a problem, simply return null
			return null;
		}
	}

 
	
	// 初始化菜单
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		super.onCreateOptionsMenu(menu);

		menu.add(0, ALBUM_SONGES, 0, R.string.album_songs)
				.setIcon(R.drawable.ic_menu_notifications)
				.setAlphabeticShortcut('S');
		menu.add(0, ALBUM_INFOS, 0, R.string.album_infos).setIcon(
				android.R.drawable.ic_menu_gallery).setAlphabeticShortcut('A');
		menu.add(0, ALBUM_BACK, 0, R.string.menu_back).setIcon(
				R.drawable.setting).setAlphabeticShortcut('I');
		return true;
	}

	// 当一个菜单被选中的时候调用
	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		Intent intent = new Intent();
		switch (item.getItemId()) {
		case ALBUM_SONGES:
//			intent.setClass(Album.this, YoboPlayer.class);
			Intent itemintent = new Intent(this,PlayList.class);
			Bundle album = new Bundle();
//	    	 album.putString("id", album_id);
//	    	 album.putString("name", album_name);
//	    	 album.putString("url", album_url);
//	    	 album.putString("pic", album_pic);
	    	 itemintent.putExtra("android.intent.extra.album", album);
	         startActivityForResult(itemintent, 0);	
//			startActivity(intent);
			return true;
		case ALBUM_INFOS:
			intent.setClass(Albums.this, Album.class);
			startActivity(intent);
			return true;
		case ALBUM_BACK:
			finish();
			break;
		}
		return true;
	}

	private void UpdateDisplay() {
		TextView feedtitle = (TextView) findViewById(R.id.feedtitle);
		ListView itemlist = (ListView) findViewById(R.id.itemlist);

		if (feed == null) {
			feedtitle.setText("No Album Available");
			return;
		}

		ArrayAdapter<AlbumItem> adapter = new ArrayAdapter<AlbumItem>(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).getName() + "]");

		Intent itemintent = new Intent(this, Album.class);

		Bundle album = new Bundle();
		album.putString("id", feed.getItem(position).getId());
		album.putString("name", feed.getItem(position).getName());
		album.putString("introduction", feed.getItem(position).getIntro());
		album.putString("url", feed.getItem(position).getUrl());
		album.putString("pic", feed.getItem(position).getPic());
		album.putString("publish_date", feed.getItem(position).getPubDate());
		album.putString("publish_company", feed.getItem(position).getPubcomp());

		itemintent.putExtra("android.intent.extra.album", album);
		startActivityForResult(itemintent, 0);
	}

}