Android音乐播放器

具体功能实现：
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登陆成功后可进行常规点击播放音乐与其他操作
主要类：

音乐播放服务类

/*** 类说明：音乐播放服务类* @author wangzhihao* @version*/public class ControlPlay extends Service {//声明一个音频播放器public static MediaPlayer myMediaPlayer;public static MainActivity c_ma;public static int playing_id = 0;public static Music_infoAdapter m_in;//创建线程public Thread thread;Handler handler = new Handler();public boolean playFlag = true;public int vTemp = 0;@Overridepublic IBinder onBind(Intent intent) {return null;}@Overridepublic void onCreate() {super.onCreate();initMediaSource(initMusicUri(0));}@Overridepublic void onDestroy() {super.onDestroy();if (myMediaPlayer != null) {myMediaPlayer.stop();myMediaPlayer.release();myMediaPlayer = null;}}@Overridepublic void onStart(Intent intent, int startId) {String playFlag = intent.getExtras().getString(\"control\");if (\"play\".equals(playFlag)) {playMusic();} else if (\"next\".equals(playFlag)) {playNext();} else if (\"front\".equals(playFlag)) {playFront();} else if (\"listClick\".equals(playFlag)) {playing_id = intent.getExtras().getInt(\"musicId_1\");initMediaSource(initMusicUri(playing_id));playMusic();} else if (\"gridClick\".equals(playFlag)) {playing_id = intent.getExtras().getInt(\"musicId_2\");initMediaSource(initMusicUri(playing_id));playMusic();}}/*** 初始化媒体对象** @param mp3Path*            mp3路径*/public void initMediaSource(String mp3Path) {Uri mp3Uri = Uri.parse(mp3Path);if (myMediaPlayer != null) {myMediaPlayer.stop();myMediaPlayer.reset();myMediaPlayer = null;}// 为myMediaPlayer创建对象myMediaPlayer = MediaPlayer.create(this, mp3Uri);//myMediaPlayer = MediaPlayer.create(this, R.raw.aaaa);//	c_ma.startRhythm(myMediaPlayer);}/*** 返回列表第几行的歌曲路径** @param _id*            表示歌曲序号，从0开始*/public String initMusicUri(int _id) {playing_id = _id;String s;// 判断列表和列表长度不为空时才获取if (Music_infoAdapter.musicList != null&& Music_infoAdapter.musicList.size() != 0) {s = Music_infoAdapter.musicList.get(_id).getMusicPath();return s;} else {// 否则返回空字符串return \"\";}}/*** 音乐播放方法，并且带有暂停方法*/public void playMusic() {// 判断歌曲不能为空System.out.println(\"sfajfdsa\");if (myMediaPlayer != null && Music_infoAdapter.musicList.size() != 0) {if (myMediaPlayer.isPlaying()) {// 歌曲暂停myMediaPlayer.stop();// 更换播放按钮背景MainActivity.play_ImageButton.setBackgroundResource(R.drawable.play_button);} else {System.out.println(\"sfajfdsa2\");//		myMediaPlayer.start();try {if(myMediaPlayer != null){myMediaPlayer.stop();}myMediaPlayer.prepare();myMediaPlayer.start();} catch (Exception e) {e.printStackTrace();}// /////////////////////// 初始化歌词配置 /////////////////////// //// 更换背景-MainActivity.play_ImageButton.setBackgroundResource(R.drawable.pause_button);// 启动线程更新SeekBarstartSeekBarUpdate();// 截取.mp3字符串String a = Music_infoAdapter.musicList.get(playing_id).getMusicName();// 切换带动画更新歌曲名MainActivity.music_Name.setText(a);MainActivity.music_Name.setAnimation(AnimationUtils.loadAnimation(ControlPlay.this, R.anim.translate_z));// 带动画更新专辑名MainActivity.music_Album.setText(Music_infoAdapter.musicList.get(playing_id).getMusicAlbum());MainActivity.music_Album.setAnimation(AnimationUtils.loadAnimation(ControlPlay.this, R.anim.alpha_y));// 更新歌曲时间MainActivity.time_right.setText(Music_infoAdapter.toTime(Music_infoAdapter.musicList.get(playing_id).getMusicTime()));}/*** 监听播放是否完成*/myMediaPlayer.setOnCompletionListener(new OnCompletionListener() {@Overridepublic void onCompletion(MediaPlayer mp) {// TODO Auto-generated method stub// 播放完当前歌曲，自动播放下一首playNext();}});} else {Toast.makeText(ControlPlay.this, \"木有在手机里找到歌曲啊...\",Toast.LENGTH_SHORT).show();}}/*** 播放下一首*/public void playNext() {// 判断歌曲不能为空if (Music_infoAdapter.musicList.size() != 0) {// 如果到了最后一首则一直播放最后一首if (playing_id == Music_infoAdapter.musicList.size() - 1) {playing_id = Music_infoAdapter.musicList.size() - 1;Toast.makeText(ControlPlay.this, \"已经是最后一首啦！\",Toast.LENGTH_SHORT).show();MainActivity.play_ImageButton.setBackgroundResource(R.drawable.play_button);MainActivity.mNotificationManager.cancel(1);} else {initMediaSource(initMusicUri(++playing_id));playMusic();}} else {Toast.makeText(ControlPlay.this, \"木有找到歌曲啊！\", Toast.LENGTH_SHORT).show();}}/*** 播放上一首*/public void playFront() {// 判断歌曲不能为空if (Music_infoAdapter.musicList.size() != 0) {// 如果到了第一首则一直播放第一首if (playing_id == 0) {playing_id = 0;Toast.makeText(ControlPlay.this, \"现在就是第一首哦！\",Toast.LENGTH_SHORT).show();} else {initMediaSource(initMusicUri(--playing_id));playMusic();}} else {Toast.makeText(ControlPlay.this, \"木有找到歌曲啊！\", Toast.LENGTH_SHORT).show();}}public void startSeekBarUpdate() {handler.post(start);}Runnable start = new Runnable() {@Overridepublic void run() {// TODO Auto-generated method stubhandler.post(updatesb);}};Runnable updatesb = new Runnable() {@Overridepublic void run() {// 获取SeekBar走动到那的时间MainActivity.play_time = myMediaPlayer.getCurrentPosition();// 设置填充当前获取的进度MainActivity.seekbar.setProgress(MainActivity.play_time);// SeekBar的最大值填充歌曲时间MainActivity.seekbar.setMax(Music_infoAdapter.musicList.get(playing_id).getMusicTime());// 线程延迟1000毫秒启动handler.postDelayed(updatesb, 1000);}};}

MainActivity类

public class MainActivity extends Activity {private ImageButton left_ImageButton;// 上一曲public static ImageButton play_ImageButton;// 播放private ImageButton right_ImageButton;// 下一曲public static Context mContext;private ListView musicListView;// 歌曲列表// 绑定SeekBar和各种属性TextViewpublic static SeekBar seekbar;public static TextView time_left;public static TextView time_right;public static TextView music_Name;public static TextView music_Album;public static ImageView music_AlbumArt;// 为歌曲时间和播放时间定义静态变量public static int song_time = 0;public static int play_time = 0;public static Music_infoAdapter music_info;public static NotificationManager mNotificationManager;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);mContext = MainActivity.this;musicListView = (ListView) findViewById(R.id.listView1);time_left = (TextView) findViewById(R.id.time_tv1);time_right = (TextView) findViewById(R.id.time_tv2);music_Name = (TextView) findViewById(R.id.music_name);music_Album = (TextView) findViewById(R.id.music_album);seekbar = (SeekBar) findViewById(R.id.player_seekbar);// 创建对象获得系统服务mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);ShowMp3List();// 监听播放列表点击事件musicListView.setOnItemClickListener(new OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {Intent play_1 = new Intent(mContext, ControlPlay.class);play_1.putExtra(\"control\", \"listClick\");play_1.putExtra(\"musicId_1\", arg2);startService(play_1);}});/*** 监听“上一首”并实现功能*/left_ImageButton = (ImageButton) findViewById(R.id.ib1);left_ImageButton.setOnClickListener(new ImageButton.OnClickListener() {@Overridepublic void onClick(View v) {Intent play_left = new Intent(mContext, ControlPlay.class);play_left.putExtra(\"control\", \"front\");startService(play_left);}});/*** 监听“下一首”并实现功能*/right_ImageButton = (ImageButton) findViewById(R.id.ib3);right_ImageButton.setOnClickListener(new ImageButton.OnClickListener() {@Overridepublic void onClick(View v) {Intent play_right = new Intent(mContext, ControlPlay.class);play_right.putExtra(\"control\", \"next\");startService(play_right);}});/*** 播放按钮，实现方法* */play_ImageButton = (ImageButton) findViewById(R.id.ib2);play_ImageButton.setOnClickListener(new ImageButton.OnClickListener() {@Overridepublic void onClick(View v) {Intent play_center = new Intent(mContext, ControlPlay.class);play_center.putExtra(\"control\", \"play\");startService(play_center);}});// 判断歌曲不能为空并且后缀为.mp3if (music_info.getCount() > 0&& Music_infoAdapter.musicList.get(ControlPlay.playing_id).getMusicName().endsWith(\".mp3\")) {// 显示获取的歌曲时间time_right.setText(Music_infoAdapter.toTime(Music_infoAdapter.musicList.get(ControlPlay.playing_id).getMusicTime()));// 截取.mp3字符串String a = Music_infoAdapter.musicList.get(ControlPlay.playing_id).getMusicName();int b = a.indexOf(\".mp3\");String c = a.substring(0, b);// 显示获取的歌曲名music_Name.setText(c);music_Name.setAnimation(AnimationUtils.loadAnimation(mContext,R.anim.translate_z));} else {System.out.println(\"请点击列表播放歌曲！\");}/*** 监听拖动SeekBar事件*/seekbar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {@Overridepublic void onStopTrackingTouch(SeekBar seekBar) {// TODO Auto-generated method stub}@Overridepublic void onStartTrackingTouch(SeekBar seekBar) {// TODO Auto-generated method stub}@Overridepublic void onProgressChanged(SeekBar seekBar, int progress,boolean fromUser) {// 判断用户是否触拖SeekBar并且不为空才执行if (fromUser && ControlPlay.myMediaPlayer != null) {ControlPlay.myMediaPlayer.seekTo(progress);}time_left.setText(Music_infoAdapter.toTime(progress));}});}private void ShowMp3List() {// 用游标查找媒体详细信息Cursor cursor = this.getContentResolver().query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,new String[] { MediaStore.Audio.Media.TITLE,// 标题，游标从0读取MediaStore.Audio.Media.DURATION,// 持续时间,1MediaStore.Audio.Media.ARTIST,// 艺术家,2MediaStore.Audio.Media._ID,// id,3MediaStore.Audio.Media.DISPLAY_NAME,// 显示名称,4MediaStore.Audio.Media.DATA,// 数据，5MediaStore.Audio.Media.ALBUM_ID,// 专辑名称ID,6MediaStore.Audio.Media.ALBUM,// 专辑,7MediaStore.Audio.Media.SIZE }, null, null,MediaStore.Audio.Media.ARTIST);// 大小,8/*** 判断游标是否为空，有些地方即使没有音乐也会报异常。而且游标不稳定。稍有不慎就出错了,其次，如果用户没有音乐的话，* 不妨可以告知用户没有音乐让用户添加进去*/if (cursor != null && cursor.getCount() == 0) {Toast.makeText(mContext, \"你的手机未找到音乐,请添加音乐\", Toast.LENGTH_LONG).show();return;}System.out.println(\" cursor size \" + cursor.getCount());music_info = new Music_infoAdapter(this, cursor);new MusicListView().disPlayList(musicListView, this, cursor);}}

歌曲适配类

/*** 类说明：歌曲列表适配类* @author wangzhihao* @version*/public class Music_infoAdapter extends BaseAdapter {// 用来装查询到得音乐文件数据//游标public Cursor mCursor;// 歌曲列表信息public static List<MusicInfomation> musicList;public MusicInfomation mi;public Context mContext;// 音乐信息：1、歌曲名，2、歌手，3、歌曲时间，4、专辑，5、歌曲大小public Music_infoAdapter(Context context,Cursor cursor) {System.out.println(\"Music_infoAdapter\");this.mContext = context;this.mCursor = cursor;musicList = new ArrayList<MusicInfomation>();/** 将游标移到第一位 **/mCursor.moveToFirst();if (mCursor != null) {// 移动到第一个mCursor.moveToFirst();// 获得歌曲的各种属性for (int i = 0; i < mCursor.getCount(); i++) {// 过滤mp3文件if (mCursor.getString(5).endsWith(\".mp3\")) {mi = new MusicInfomation();mi.setMusicName(mCursor.getString(0));//歌曲名称mi.setMusicTime(mCursor.getInt(1));//歌曲时间长度mi.setMusicAlbum(mCursor.getString(2));//专辑mi.setMusicSinger(mCursor.getString(3));//歌手mi.setMusicSize(mCursor.getInt(4));//大小mi.setMusicPath(mCursor.getString(5));//路径mi.set_id(mCursor.getInt(6));//歌曲idmusicList.add(mi);}// 移动到下一个mCursor.moveToNext();}System.out.println(\"musicList size \"+ musicList.size());}}@Overridepublic int getCount() {return musicList.size();}@Overridepublic Object getItem(int arg0) {return musicList.get(arg0);}@Overridepublic long getItemId(int arg0) {return 0;}@Overridepublic View getView(int arg0, View arg1, ViewGroup arg2) {LayoutInflater li = LayoutInflater.from(mContext);View v = li.inflate(R.layout.musiclist_item, null);TextView tv1;TextView tv2;TextView tv3;TextView tv4;// ImageView iv1;tv1 = (TextView) v.findViewById(R.id.tv1);tv2 = (TextView) v.findViewById(R.id.tv2);tv3 = (TextView) v.findViewById(R.id.tv3);tv4 = (TextView) v.findViewById(R.id.tv4);tv1.setText(musicList.get(arg0).getMusicName());tv2.setText(toTime(musicList.get(arg0).getMusicTime()));//tv3.setText(musicList.get(arg0).getMusicPath());tv3.setText(musicList.get(arg0).getMusicAlbum());tv4.setText(toMB(musicList.get(arg0).getMusicSize()) + \"MB\");return v;}/*** 时间转化处理*/public static String toTime(int time) {time /= 1000;int minute = time / 60;int second = time % 60;minute %= 60;return String.format(\" %02d:%02d \", minute, second);}/*** 文件大小转换，将B转换为MB*/public String toMB(int size) {float a = (float) size / (float) (1024 * 1024);String b = Float.toString(a);int c = b.indexOf(\".\");String fileSize = \"\";fileSize += b.substring(0, c + 2);return fileSize;}/*** 歌曲专辑图片显示,如果有歌曲图片，才会返回，否则为null，要注意判断** @param trackId是音乐的id* @return 返回类型是String 类型的图片地址，也就是uri*/public String getAlbumArt(int trackId) {return \"\";}/*** 1、歌曲名 2、歌手 3、歌曲时间 4、专辑(专辑图片，专辑名称，专辑ID[用来获取图片]) 5、歌曲大小*/public class MusicInfomation {private int _id;private String musicName;private String musicSinger;private int musicTime;private String musicAlbum;private int musicSize;private String musicPath;public int get_id() {return _id;}public void set_id(int _id) {this._id = _id;}public String getMusicName() {return musicName;}public void setMusicName(String musicName) {this.musicName = musicName;}public String getMusicSinger() {return musicSinger;}public void setMusicSinger(String musicSinger) {this.musicSinger = musicSinger;}public int getMusicTime() {return musicTime;}public void setMusicTime(int musicTime) {this.musicTime = musicTime;}public String getMusicAlbum() {return musicAlbum;}public void setMusicAlbum(String musicAlbum) {this.musicAlbum = musicAlbum;}public int getMusicSize() {return musicSize;}public void setMusicSize(int musicSize) {this.musicSize = musicSize;}public String getMusicPath() {return musicPath;}public void setMusicPath(String musicPath) {this.musicPath = musicPath;}}}

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