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==android简易音乐播放器==
阅读量：6452 次
发布时间：2019-06-23

本文共 17905 字，大约阅读时间需要 59 分钟。

hot3.png

1，完成实体类包

public class Music  {
 
 private String title;
 private String singer;
 private String album;
 private String url;
 private long size;
 private long time;
 private String name;
 
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public String getTitle() {
  return title;
 }
 public void setTitle(String title) {
  this.title = title;
 }
 public String getSinger() {
  return singer;
 }
 public void setSinger(String singer) {
  this.singer = singer;
 }
 public String getAlbum() {
  return album;
 }
 public void setAlbum(String album) {
  this.album = album;
 }
 public String getUrl() {
  return url;
 }
 public void setUrl(String url) {
  this.url = url;
 }
 public long getSize() {
  return size;
 }
 public void setSize(long size) {
  this.size = size;
 }
 public long getTime() {
  return time;
 }
 public void setTime(long time) {
  this.time = time;
 }
 
}

2，完成适配器包，部分代码

 

public class MusicAdapter extends BaseAdapter {

 
    private List<Music> listMusic;
    private Context context;
    public MusicAdapter(Context context,List<Music> listMusic){
     this.context=context;
     this.listMusic=listMusic;
    }
 public void setListItem(List<Music> listMusic){
  this.listMusic=listMusic;
 }
 @Override
 public int getCount() {
  // TODO Auto-generated method stub
  return listMusic.size();
 }

 @Override

 public Object getItem(int arg0) {
  // TODO Auto-generated method stub
  return listMusic.get(arg0);
 }

 @Override

 public long getItemId(int position) {
  // TODO Auto-generated method stub
  return position;
 }
 public View getView(int position, View convertView, ViewGroup parent) {
  ViewHolder holder;
  Music m=listMusic.get(position);
  if (convertView == null) {
  convertView = LayoutInflater.from(context).inflate(R.layout.music_item, null);  
  holder = new ViewHolder();
  //音乐名
  holder.textMusicName = (TextView) convertView.findViewById(R.id.music_item_name);
  //歌手
  holder.textMusicSinger=(TextView) convertView.findViewById(R.id.music_item_singer);
  //持续时间
   holder.textMusicSinger=(TextView) convertView.findViewById(R.id.music_item_time);
  
  convertView.setTag(holder);
  } else {
  holder = (ViewHolder) convertView.getTag();
  }
  holder.textMusicName.setText(m.getName());
  holder.textMusicSinger.setText(m.getSinger());
  holder.textMusicTime.setText(toTime((int)m.getTime()));
  return convertView;
  }

  static class ViewHolder {

   TextView textMusicName;
   TextView textMusicSinger;
   TextView textMusicTime;
  }
 
 
 
   /**
    * 时间格式转换
    * @param time
    *
    */
   public String toTime(int time) {
         
    time /= 1000;
    int minute = time / 60;
    int hour = minute / 60;
    int second = time % 60;
    minute %= 60;
    return String.format("%02d:%02d", minute, second);
   }
}

3，完成方法类包

public class MusicList {

 public static List<Music> getMusicData(Context context) {

  List<Music> musicList = new ArrayList<Music>();
  ContentResolver cr = context.getContentResolver();
  if (cr != null) {
   // 获取所有歌曲

   Cursor cursor = cr.query(

     MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, null, null,
     null, MediaStore.Audio.Media.DEFAULT_SORT_ORDER);
   if (null == cursor) {
    return null;
   }
   if (cursor.moveToFirst()) {
    do {
     Music m = new Music();
     String title = cursor.getString(cursor
       .getColumnIndex(MediaStore.Audio.Media.TITLE));
     String singer = cursor.getString(cursor
       .getColumnIndex(MediaStore.Audio.Media.ARTIST));
     if ("<unknown>".equals(singer)) {
      singer = "未知艺术家";
     }
     String album = cursor.getString(cursor
       .getColumnIndex(MediaStore.Audio.Media.ALBUM));
     long size = cursor.getLong(cursor
       .getColumnIndex(MediaStore.Audio.Media.SIZE));
     long time = cursor.getLong(cursor
       .getColumnIndex(MediaStore.Audio.Media.DURATION));
     String url = cursor.getString(cursor
       .getColumnIndex(MediaStore.Audio.Media.DATA));
     String name = cursor
       .getString(cursor
         .getColumnIndex(MediaStore.Audio.Media.DISPLAY_NAME));
     String sbr = name.substring(name.length() - 3,
       name.length());
     //Log.e("--------------", sbr);
     if (sbr.equals("mp3")) {
      m.setTitle(title);
      m.setSinger(singer);
      m.setAlbum(album);
      m.setSize(size);
      m.setTime(time);
      m.setUrl(url);
      m.setName(name);
      musicList.add(m);
     }
    } while (cursor.moveToNext());
   }
  }
  return musicList;

 }

}

4，完成activity

 

public class MusicActivity extends Activity implements SensorEventListener{

 private TextView textName;

 private TextView textSinger;
 private TextView textStartTime;
 private TextView textEndTime;
 private ImageButton imageBtnLast;
 private ImageButton imageBtnRewind;
 public static ImageButton imageBtnPlay;
 private ImageButton imageBtnForward;
 private ImageButton imageBtnNext;
 private ImageButton imageBtnLoop;
 private ImageButton imageBtnRandom;
 public static LrcView lrc_view;
 private ImageView icon;
 private SeekBar seekBar1;
 private AudioManager audioManager;// 音量管理者
 private int maxVolume;// 最大音量
 private int currentVolume;// 当前音量
 private SeekBar seekBarVolume;
 private List<Music> lists;
 private Boolean isPlaying = false;
 private static int id = 1;
 private static int currentId = 2;
 private static Boolean replaying=false;
 private MyProgressBroadCastReceiver receiver;
 private MyCompletionListner completionListner;
 public static Boolean isLoop=true;
 private SensorManager sensorManager;
 private boolean mRegisteredSensor;

 @Override

 protected void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  requestWindowFeature(Window.FEATURE_NO_TITLE);
  this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
    WindowManager.LayoutParams.FLAG_FULLSCREEN);
  setContentView(R.layout.music);

  textName = (TextView) this.findViewById(R.id.music_name);

  textSinger = (TextView) this.findViewById(R.id.music_singer);
  textStartTime = (TextView) this.findViewById(R.id.music_start_time);
  textEndTime = (TextView) this.findViewById(R.id.music_end_time);
  seekBar1 = (SeekBar) this.findViewById(R.id.music_seekBar);
  //icon = (ImageView) this.findViewById(R.id.image_icon);
  imageBtnLast = (ImageButton) this.findViewById(R.id.music_lasted);
  imageBtnRewind = (ImageButton) this.findViewById(R.id.music_rewind);
  imageBtnPlay = (ImageButton) this.findViewById(R.id.music_play);
  imageBtnForward = (ImageButton) this.findViewById(R.id.music_foward);
  imageBtnNext = (ImageButton) this.findViewById(R.id.music_next);
  imageBtnLoop = (ImageButton) this.findViewById(R.id.music_loop);
  seekBarVolume = (SeekBar) this.findViewById(R.id.music_volume);
  imageBtnRandom = (ImageButton) this.findViewById(R.id.music_random);
  lrc_view = (LrcView) findViewById(R.id.LyricShow);
  
  imageBtnLast.setOnClickListener(new MyListener());
  imageBtnRewind.setOnClickListener(new MyListener());
  imageBtnPlay.setOnClickListener(new MyListener());
  imageBtnForward.setOnClickListener(new MyListener());
  imageBtnNext.setOnClickListener(new MyListener());
  imageBtnLoop.setOnClickListener(new MyListener());
  imageBtnRandom.setOnClickListener(new MyListener());
  sensorManager=(SensorManager) getSystemService(SENSOR_SERVICE);

  lists = MusicList.getMusicData(this);

  audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
  maxVolume = audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);// 获得最大音量
  currentVolume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);// 获得当前音量
  seekBarVolume.setMax(maxVolume);
  seekBarVolume.setProgress(currentVolume);
  seekBarVolume.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

   @Override

   public void onStopTrackingTouch(SeekBar seekBar) {
    // TODO Auto-generated method stub

   }

   @Override

   public void onStartTrackingTouch(SeekBar seekBar) {
    // TODO Auto-generated method stub

   }

   @Override

   public void onProgressChanged(SeekBar seekBar, int progress,
     boolean fromUser) {
    // TODO Auto-generated method stub
    audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,
      progress, AudioManager.FLAG_ALLOW_RINGER_MODES);
   }
  });
  //电话状态监听
  TelephonyManager telManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
  telManager.listen(new MobliePhoneStateListener(),
    PhoneStateListener.LISTEN_CALL_STATE);
  seekBar1.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
   
   @Override
   public void onStopTrackingTouch(SeekBar seekBar) {
    // TODO Auto-generated method stub
   
    seekBar1.setProgress(seekBar.getProgress());
    Intent intent=new Intent("cn.com.karl.seekBar");
    intent.putExtra("seekBarPosition", seekBar.getProgress());
    //System.out.println("==========="+seekBar.getProgress());
    sendBroadcast(intent);
    
   }
   
   @Override
   public void onStartTrackingTouch(SeekBar seekBar) {
    // TODO Auto-generated method stub
    
   }
   
   @Override
   public void onProgressChanged(SeekBar seekBar, int progress,
     boolean fromUser) {
    // TODO Auto-generated method stub
    
   }
  });
   completionListner=new MyCompletionListner();
  IntentFilter filter=new IntentFilter("cn.com.karl.completion");
  this.registerReceiver(completionListner, filter);
 }
 private class MobliePhoneStateListener extends PhoneStateListener {

  @Override

  public void onCallStateChanged(int state, String incomingNumber) {
   switch (state) {
   case TelephonyManager.CALL_STATE_IDLE: /* 无任何状态时 */
    Intent intent = new Intent(MusicActivity.this,
      MusicService.class);
    intent.putExtra("play", "playing");
    intent.putExtra("id", id);
    startService(intent);
    isPlaying = true;
    imageBtnPlay.setImageResource(R.drawable.pause1);
    replaying=true;
    break;
   case TelephonyManager.CALL_STATE_OFFHOOK: /* 接起电话时 */
    
   case TelephonyManager.CALL_STATE_RINGING: /* 电话进来时 */
    Intent intent2 = new Intent(MusicActivity.this,
      MusicService.class);
    intent2.putExtra("play", "pause");
    startService(intent2);
    isPlaying = false;
    imageBtnPlay.setImageResource(R.drawable.play1);
    replaying=false;
    break;
   default:
    break;

   }

  }

 }

 @Override
 protected void onStart() {
  // TODO Auto-generated method stub
  super.onStart();
   receiver=new MyProgressBroadCastReceiver();
  IntentFilter filter=new IntentFilter("cn.com.karl.progress");
  this.registerReceiver(receiver, filter);
  
  id = getIntent().getIntExtra("id", 1);
  if (id == currentId) {
   Music m = lists.get(id);
   textName.setText(m.getTitle());
   textSinger.setText(m.getSinger());
   textEndTime.setText(toTime((int) m.getTime()));
   Intent intent = new Intent(MusicActivity.this, MusicService.class);
   intent.putExtra("play", "replaying");
   intent.putExtra("id", id);
   startService(intent);
   if (replaying == true) {
    imageBtnPlay.setImageResource(R.drawable.pause1);
    ///replaying=false;
    isPlaying = true;
   } else {
    imageBtnPlay.setImageResource(R.drawable.play1);
    //replaying=true;
    isPlaying=false;
   }
   
   
  } else {
   Music m = lists.get(id);
   textName.setText(m.getTitle());
   textSinger.setText(m.getSinger());
   textEndTime.setText(toTime((int) m.getTime()));
   imageBtnPlay.setImageResource(R.drawable.pause1);
   Intent intent = new Intent(MusicActivity.this, MusicService.class);
   intent.putExtra("play", "play");
   intent.putExtra("id", id);
   startService(intent);
   isPlaying = true;
   replaying=true;
   currentId = id;
  }
  
 }
 @Override
 protected void onResume() {
  // TODO Auto-generated method stub
  super.onResume();
  List<Sensor> sensors=sensorManager.getSensorList(Sensor.TYPE_ACCELEROMETER);
  if(sensors.size()>0){
   Sensor sensor=sensors.get(0);
   mRegisteredSensor=sensorManager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_FASTEST);
   Log.e("--------------", sensor.getName());
  }
 }
 @Override
 protected void onPause() {
  // TODO Auto-generated method stub
  if(mRegisteredSensor){
   sensorManager.unregisterListener(this);
   mRegisteredSensor=false;
  }
  super.onPause();
 }
 @Override
 protected void onDestroy() {
  // TODO Auto-generated method stub
  this.unregisterReceiver(receiver);
  this.unregisterReceiver(completionListner);
  super.onDestroy();
 }
    public class MyProgressBroadCastReceiver extends BroadcastReceiver{

  @Override

  public void onReceive(Context context, Intent intent) {
   // TODO Auto-generated method stub
   int position=intent.getIntExtra("position", 0);
   int total=intent.getIntExtra("total", 0);
   int progress = position * 100 / total;
   textStartTime.setText(toTime(position));
   seekBar1.setProgress(progress);
   seekBar1.invalidate();
  }
     
    }
 private class MyListener implements OnClickListener {

  @Override

  public void onClick(View v) {
   // TODO Auto-generated method stub
   if (v == imageBtnLast) {
    // 第一首
    id = 0;
    Music m = lists.get(0);
    textName.setText(m.getTitle());
    textSinger.setText(m.getSinger());
    textEndTime.setText(toTime((int) m.getTime()));
    imageBtnPlay.setImageResource(R.drawable.pause1);
    Intent intent = new Intent(MusicActivity.this,
      MusicService.class);
    intent.putExtra("play", "first");
    intent.putExtra("id", id);
    startService(intent);
    isPlaying = true;
   } else if (v == imageBtnRewind) {
    // 前一首
    int id=MusicService._id-1;
    if(id>=lists.size()-1){
     id=lists.size()-1;
    }else if(id<=0){
     id=0;
    }
    Music m = lists.get(id);
    textName.setText(m.getTitle());
    textSinger.setText(m.getSinger());
    textEndTime.setText(toTime((int) m.getTime()));
    imageBtnPlay.setImageResource(R.drawable.pause1);
    Intent intent = new Intent(MusicActivity.this,
      MusicService.class);
    intent.putExtra("play", "rewind");
    intent.putExtra("id", id);
    startService(intent);
    isPlaying = true;
   } else if (v == imageBtnPlay) {
    // 正在播放
    if (isPlaying == true) {
     Intent intent = new Intent(MusicActivity.this,
       MusicService.class);
     intent.putExtra("play", "pause");
     startService(intent);
     isPlaying = false;
     imageBtnPlay.setImageResource(R.drawable.play1);
     replaying=false;
    } else {
     Intent intent = new Intent(MusicActivity.this,
       MusicService.class);
     intent.putExtra("play", "playing");
     intent.putExtra("id", id);
     startService(intent);
     isPlaying = true;
     imageBtnPlay.setImageResource(R.drawable.pause1);
     replaying=true;
    }
   } else if (v == imageBtnForward) {
    // 下一首
    int id=MusicService._id+1;
    if(id>=lists.size()-1){
     id=lists.size()-1;
    }else if(id<=0){
     id=0;
    }
    Music m = lists.get(id);
    textName.setText(m.getTitle());
    textSinger.setText(m.getSinger());
    textEndTime.setText(toTime((int) m.getTime()));
    imageBtnPlay.setImageResource(R.drawable.pause1);
    Intent intent = new Intent(MusicActivity.this,
      MusicService.class);
    intent.putExtra("play", "forward");
    intent.putExtra("id", id);
    startService(intent);
    isPlaying = true;
   } else if (v == imageBtnNext) {
    // 最后一首
    int id=lists.size()-1;
    Music m = lists.get(id);
    textName.setText(m.getTitle());
    textSinger.setText(m.getSinger());
    textEndTime.setText(toTime((int) m.getTime()));
    imageBtnPlay.setImageResource(R.drawable.pause1);
    Intent intent = new Intent(MusicActivity.this,
      MusicService.class);
    intent.putExtra("play", "last");
    intent.putExtra("id", id);
    startService(intent);
    isPlaying = true;
   } else if (v == imageBtnLoop) {
    if (isLoop == true) {
     // 顺序播放
     imageBtnLoop
       .setBackgroundResource(R.drawable.play_loop_spec);
     isLoop = false;
    } else {
     // 单曲播放
     imageBtnLoop
       .setBackgroundResource(R.drawable.play_loop_sel);
     isLoop = true;
    }
   } else if (v == imageBtnRandom) {
    imageBtnRandom.setImageResource(R.drawable.play_random_sel);
   }

  }

 }
   private class MyCompletionListner extends BroadcastReceiver{

 @Override

 public void onReceive(Context context, Intent intent) {
  // TODO Auto-generated method stub
  Music m = lists.get(MusicService._id);
  textName.setText(m.getTitle());
  textSinger.setText(m.getSinger());
  textEndTime.setText(toTime((int) m.getTime()));
  imageBtnPlay.setImageResource(R.drawable.pause1);
 }
   
   }
 /**
  * 时间格式转换
  *
  * @param time
  *
  */
 public String toTime(int time) {

  time /= 1000;

  int minute = time / 60;
  int hour = minute / 60;
  int second = time % 60;
  minute %= 60;
  return String.format("%02d:%02d", minute, second);
 }
 //重力感应 甩歌代码
 private static final int SHAKE_THRESHOLD = 3000;
 private long lastUpdate=0;
 private double last_x=0;
 private double last_y= 4.50;
 private double last_z=9.50;
 //这个控制精度，越小表示反应越灵敏
 @Override
 public void onAccuracyChanged(Sensor sensor, int accuracy) {
  // TODO Auto-generated method stub
  //处理精准度改变
 }

 @Override

 public void onSensorChanged(SensorEvent event) {
  // TODO Auto-generated method stub
  if(event.sensor.getType()==Sensor.TYPE_ACCELEROMETER){
   long curTime = System.currentTimeMillis();
   
   // 每200毫秒检测一次  
   if ((curTime - lastUpdate) > 100) {
   long diffTime = (curTime - lastUpdate); 
   lastUpdate = curTime;  
   double x=event.values[SensorManager.DATA_X];
   double y=event.values[SensorManager.DATA_Y];
   double z=event.values[SensorManager.DATA_Z];
   Log.e("---------------", "x="+x+"   y="+y+"   z="+z);
   float speed = (float) (Math.abs(x+y+z - last_x - last_y - last_z) / diffTime * 10000);       
   if (speed > SHAKE_THRESHOLD) {  
                        //检测到摇晃后执行的代码
      if(MusicService.playing==true){
       Intent intent = new Intent(MusicActivity.this,
        MusicService.class);
      intent.putExtra("play", "pause");
      startService(intent);
      isPlaying = false;
      imageBtnPlay.setImageResource(R.drawable.play1);
      replaying=false;
      }else{
       Intent intent = new Intent(MusicActivity.this,
        MusicService.class);
      intent.putExtra("play", "playing");
      intent.putExtra("id", id);
      startService(intent);
      isPlaying = true;
      imageBtnPlay.setImageResource(R.drawable.pause1);
      replaying=true;
      }
   } 
   last_x = x;  
   last_y = y;  
   last_z = z;  
   }
  }
 }

}

5,main

 

public class MainActivity extends TabActivity {

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
          WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.main);
       
        Resources res = getResources();
        TabHost tabHost = getTabHost();
        TabHost.TabSpec spec;
        Intent intent; 
        intent = new Intent().setClass(this, ListActivity.class);
        spec = tabHost.newTabSpec("音乐").setIndicator("音乐",
                          res.getDrawable(R.drawable.item))
                      .setContent(intent);
        tabHost.addTab(spec);
       
        intent = new Intent().setClass(this, ArtistsActivity.class);
        spec = tabHost.newTabSpec("艺术家").setIndicator("艺术家",
                          res.getDrawable(R.drawable.artist))
                      .setContent(intent);
        tabHost.addTab(spec);

        intent = new Intent().setClass(this, AlbumsActivity.class);

        spec = tabHost.newTabSpec("专辑").setIndicator("专辑",
                          res.getDrawable(R.drawable.album))
                      .setContent(intent);
        tabHost.addTab(spec);
        intent = new Intent().setClass(this, SongsActivity.class);
        spec = tabHost.newTabSpec("最近播放").setIndicator("最近播放",
                          res.getDrawable(R.drawable.album))
                      .setContent(intent);
        tabHost.addTab(spec);
       

        tabHost.setCurrentTab(0);

    }

}

 

转载于:https://my.oschina.net/libralzy/blog/151923

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