Android网络收音机--使用Vitamio解码（一）

前面讲到Vitamio可以支持一些流媒体，在这里就用Vitamio来播放网络上的一些流媒体，如：mms、rtsp、http，参考前辈的一些文章来写一个网络收音机程序，对于界面的要求不高，要求实现一些实用的功能

程序目录结构

初期界面，左边是用开源项目SlidingMenu，不清楚的可以参考：Android开源项目SlidingMenu的学习笔记

电台信息是通过XML来保存channel.xml，这里只添加一部分，更详细的可以参考文章最后的链接，自行添加

<?xml version="1.0" encoding="utf-8"?>
<Channel>

    <ChannelType
        name="推荐电台"
        ID="1"
        Icon="fm_icon"
        Level="1" >
        <RadioChannel
            name="国际电台怀旧金曲"
            ID="001"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://live.cri.cn/oldies/" />
        <RadioChannel
            name="国际电台都市流行"
            ID="002"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://live.cri.cn/pop/" />
        <RadioChannel
            name="广东电台音乐之声"
            ID="003"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://live.rgd.com.cn/993" />
        <RadioChannel
            name="广东珠江经济电台"
            ID="004"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://live.rgd.com.cn/974" />
        <RadioChannel
            name="深圳电台飞扬音乐"
            ID="005"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://vod.szr.com.cn/szr_2" />
        <RadioChannel
            name="佛山电台飞跃924"
            ID="006"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://59.38.110.90/924" />
        <RadioChannel
            name="猫扑网络电台"
            ID="007"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://ting.mop.com/mopradio" />
        <RadioChannel
            name="厦门音乐广播"
            ID="008"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://mediasrv2.iptv.xmg.com.cn/yinyue" />
        <RadioChannel
            name="北京电台怀旧金曲"
            ID="009"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://alive.bjradio.com.cn/cfm1075" />
        <RadioChannel
            name="湖南电台音乐之声"
            ID="010"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://202.103.67.185/音乐" />
        <RadioChannel
            name="银河相声小品"
            ID="011"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://media.radio.cn/radio2" />
        <RadioChannel
            name="上海故事广播"
            ID="012"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://diantai.smgbb.cn/sgwy" />
    </ChannelType>
    <ChannelType
        name="网络电台"
        ID="2"
        Icon="fm_icon"
        Level="1" >
        <RadioChannel
            name="猫扑电台"
            ID="001"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://ting.mop.com/mopradio" />
        <RadioChannel
            name="香港AirPOWER"
            ID="002"
            Icon="default_channel_icon"
            Level="2"
            URL="rtsp://live.onairpower.com:444/" />
        <RadioChannel
            name="华语之声综合"
            ID="003"
            Icon="default_channel_icon"
            Level="2"
            URL="rtsp://60.191.21.139/hy960/rtx" />
        <RadioChannel
            name="华语流行畅销"
            ID="004"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://media.justaiwan.com/22" />
        <RadioChannel
            name="中国古典乐"
            ID="005"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://media.justaiwan.com/24" />
        <RadioChannel
            name="舒适环境音乐"
            ID="006"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://media.justaiwan.com/19" />
        <RadioChannel
            name="i RADIO网路音乐台"
            ID="007"
            Icon="default_channel_icon"
            Level="2"
            URL="http://www.iradio.com.tw/radio.asx" />
        <RadioChannel
            name="银河电台中国民乐"
            ID="008"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://media.radio.cn/radio1" />
        <RadioChannel
            name="CVC中文电台"
            ID="009"
            Icon="default_channel_icon"
            Level="2"
            URL="http://www2.cvc.tv/stream/CVC_Chinese_24kbps.m3u" />
        <RadioChannel
            name="QQ综艺之声"
            ID="010"
            Icon="default_channel_icon"
            Level="2"
            URL="http://qr.fm.qq.com/qqradio?qqradio" />
        <RadioChannel
            name="QQ-都市流行"
            ID="011"
            Icon="default_channel_icon"
            Level="2"
            URL="rtsp://live.cri.cn/pop" />
        <RadioChannel
            name="青少年音乐台"
            ID="012"
            Icon="default_channel_icon"
            Level="2"
            URL="rtsp://58.63.245.9/live/stream=3" />
    </ChannelType>
    <ChannelType
        name="广东电台"
        ID="3"
        Icon="fm_icon"
        Level="1" >
        <RadioChannel
            name="广东电台音乐之声"
            ID="001"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://live.fm993.com.cn/musicfm" />
        <RadioChannel
            name="广东珠江经济台"
            ID="002"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://live.rgd.com.cn/974" />
        <RadioChannel
            name="广东南方生活广播"
            ID="003"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://live.rgd.com.cn/936" />
        <RadioChannel
            name="广东羊城交通台"
            ID="004"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://live.rgd.com.cn/1052" />
        <RadioChannel
            name="深圳电台飞扬音乐"
            ID="005"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://vod.szr.com.cn/szr_2" />
        <RadioChannel
            name="佛山电台飞跃924"
            ID="006"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://59.38.110.90/924" />
        <RadioChannel
            name="佛山电台千色985"
            ID="007"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://59.38.110.90/985" />
        <RadioChannel
            name="珠海电台新闻资讯"
            ID="008"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://www.zhtv.com/fm951" />
        <RadioChannel
            name="东莞电台新闻综合"
            ID="009"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://radio.sun0769.com/fm1008" />
        <RadioChannel
            name="江门电台新闻综合"
            ID="010"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://116.254.197.80/fm1002" />
        <RadioChannel
            name="汕头电台音乐之声"
            ID="011"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://media.strtv.cn/strch3" />
        <RadioChannel
            name="潮州电台综合频道"
            ID="012"
            Icon="default_channel_icon"
            Level="2"
            URL="http://219.131.159.151/czdt939" />
    </ChannelType>
    <ChannelType
        name="中央电台"
        ID="4"
        Icon="fm_icon"
        Level="1" >
        <RadioChannel
            name="中央电台中国之声"
            ID="001"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://mms.cnr.cn//cnr1?MTUjMCM" />
        <RadioChannel
            name="中央电台音乐之声"
            ID="002"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://mms.cnr.cn//cnr3?MTUjMCM" />
        <RadioChannel
            name="国际电台乡村民谣"
            ID="003"
            Icon="default_channel_icon"
            Level="2"
            URL="mms://live.cri.cn/country" />
    </ChannelType>

</Channel>

读取XML数据放在NetRadioApp.java，使用两个全局的变量来保存，方便其它类的使用

package com.dzt.netradio;

import java.io.InputStream;
import java.util.ArrayList;

import com.dzt.netradio.constant.GlobalConstants;
import com.dzt.netradio.domain.RadioChannelData;
import com.dzt.netradio.utils.XmlPullParserUtils;

import android.app.Application;

public class NetRadioApp extends Application {

	public static ArrayList<RadioChannelData> ChannelTypeList = new ArrayList<RadioChannelData>();
	public static ArrayList<ArrayList<RadioChannelData>> finalChanneldata = new ArrayList<ArrayList<RadioChannelData>>();

	@Override
	public void onCreate() {
		// TODO Auto-generated method stub
		super.onCreate();
		InputStream is = null;
		try {
			is = getResources().getAssets().open("channel.xml");
			XmlPullParserUtils.getRadioListData(is, ChannelTypeList,
					finalChanneldata);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			GlobalConstants.print_i("NetRadioApp",
					"onCreate Exception = " + e.toString());
			e.printStackTrace();
		}
	}

	@Override
	public void onLowMemory() {
		// TODO Auto-generated method stub
		super.onLowMemory();
		System.gc();
	}

}

在左侧菜单中使用观察者模式监听点击事件

public void setOnMenuListOnItemClickListener(
			OnMenuListOnItemClickListener listener) {
		mListener = listener;
	}

	public interface OnMenuListOnItemClickListener {

		public void onSelectItem(int groupPosition, int childPosition);
	}

	@Override
	public boolean onChildClick(ExpandableListView parent, View v,
			int groupPosition, int childPosition, long id) {
		// TODO Auto-generated method stub
		if (mListener != null) {
			mListener.onSelectItem(groupPosition, childPosition);
		}
		return false;
	}

在MainActivity.java类中设置监听器，和设置Handler与Service通信

/**
	 * 选择对应的Item
	 */
	@Override
	public void onSelectItem(int groupPosition, int childPosition) {
		// TODO Auto-generated method stub
		RadioChannelData channelData = NetRadioApp.finalChanneldata.get(
				groupPosition).get(childPosition);
		mName.setText(channelData.getChannelName());
		for (int i = 0; i < mUpdateHandler.size(); i++) {
			Handler h = mUpdateHandler.get(i);
			Message msg = h.obtainMessage();
			msg.what = GlobalConstants.SELECT_ITEM;
			Bundle data = new Bundle();
			data.putInt("groupPosition", groupPosition);
			data.putInt("childPosition", childPosition);
			msg.setData(data);
			h.sendMessage(msg);
		}
	}

	public static void addUpdateHandler(Handler handler) {
		mUpdateHandler.add(handler);
	}

	public static void removeUpdateHandler(Handler handler) {
		mUpdateHandler.remove(handler);
	}

在Service中处理播放PlayService.java

package com.dzt.netradio.player;

import java.io.IOException;

import io.vov.vitamio.MediaPlayer;
import io.vov.vitamio.MediaPlayer.OnBufferingUpdateListener;
import io.vov.vitamio.MediaPlayer.OnCompletionListener;
import io.vov.vitamio.MediaPlayer.OnPreparedListener;
import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;

import com.dzt.netradio.MainActivity;
import com.dzt.netradio.NetRadioApp;
import com.dzt.netradio.WeakHandler;
import com.dzt.netradio.constant.GlobalConstants;
import com.dzt.netradio.domain.RadioChannelData;

public class PlayService extends Service implements OnBufferingUpdateListener,
		OnCompletionListener, OnPreparedListener {

	private MediaPlayer mPlayer;

	public void MyMethod() {
		GlobalConstants.print_i("PlayService", "MyMethod called");
	}

	public PlayService() {
	}

	@Override
	public IBinder onBind(Intent intent) {
		// TODO Auto-generated method stub
		return myBinder;
	}

	public class MyBinder extends Binder {

		public PlayService getService() {
			return PlayService.this;
		}
	}

	private MyBinder myBinder = new MyBinder();

	@Override
	public void onCreate() {
		// TODO Auto-generated method stub
		super.onCreate();
		MainActivity.addUpdateHandler(selectItemHandler);
		GlobalConstants.print_i("PlayService", "onCreate called");
	}

	@Override
	public void onDestroy() {
		// TODO Auto-generated method stub
		MainActivity.removeUpdateHandler(selectItemHandler);
		if (mPlayer != null) {
			mPlayer.release();
			mPlayer = null;
		}
		super.onDestroy();
	}

	@Override
	public void onPrepared(MediaPlayer mp) {
		// TODO Auto-generated method stub
		GlobalConstants.print_i("PlayService", "onPrepared called");
		if (mPlayer != null)
			mPlayer.start();// 开始播放
	}

	@Override
	public void onCompletion(MediaPlayer mp) {
		// TODO Auto-generated method stub
		GlobalConstants.print_i("PlayService", "onCompletion called");
	}

	@Override
	public void onBufferingUpdate(MediaPlayer mp, int percent) {
		// TODO Auto-generated method stub
		// GlobalConstants.print_i("PlayService", "onBufferingUpdate called");
	}

	private void playSelectItem(String url) {
		if (mPlayer == null) {
			try {
				mPlayer = new MediaPlayer(this);// 播放流媒体的对象
				mPlayer.setDataSource(url);// 设置流媒体的数据源
				mPlayer.prepare();
				mPlayer.setOnBufferingUpdateListener(this);
				mPlayer.setOnCompletionListener(this);
				mPlayer.setOnPreparedListener(this);
			} catch (Exception e) {
				GlobalConstants.print_i("PlayService", "onCreate Exception = "
						+ e.toString());
				e.printStackTrace();
			}
		} else {
			try {
				mPlayer.setDataSource(url);// 设置流媒体的数据源
			} catch (Exception e) {
				GlobalConstants.print_i("PlayService", "onCreate Exception = "
						+ e.toString());
				e.printStackTrace();
			}
		}

		GlobalConstants.print_i("PlayService", "playSelectItem url = " + url);
	}

	private Handler selectItemHandler = new SelectItemHandler(this);

	private static class SelectItemHandler extends WeakHandler<PlayService> {

		public SelectItemHandler(PlayService owner) {
			super(owner);
			// TODO Auto-generated constructor stub
		}

		@Override
		public void handleMessage(Message msg) {
			// TODO Auto-generated method stub
			PlayService owner = getOwner();
			if (owner == null)
				return;
			switch (msg.what) {
			case GlobalConstants.SELECT_ITEM:
				Bundle data = msg.getData();
				int groupPosition = data.getInt("groupPosition");
				int childPosition = data.getInt("childPosition");
				RadioChannelData channelData = NetRadioApp.finalChanneldata
						.get(groupPosition).get(childPosition);
				owner.playSelectItem(channelData.getChannelURL());
				break;
			default:
				break;
			}
		}
	}

}

但只能播放一次，再点击Item就不能播放或自动退出，还没找到是什么原因，在后续再解决这个问题Vitamio中的MediaPlayer与系统中的MediaPlayer非常相似，用起来也方便，比VLC要方便

相关代码：http://download.csdn.net/detail/deng0zhaotai/7905367

参考文档：

1、网络电台地址（一）

2、网络电台地址（二）

3、http://www.cnblogs.com/mythou/p/3231184.html