音乐播放器+进度条 V2.0

来源：互联网发布：python获取日期字符串编辑：程序博客网时间：2024/05/17 22:50

注意事项：

注意权限：

android.permission.INTERNET

publicclass MainActivity extends Activity {

static Handler handler= new Handler(){

public void handleMessage(android.os.Message msg) {

Bundle bundle = msg.getData();

int duration = bundle.getInt("duration" );

int CurrentPosition =bundle.getInt("CurrentPosition" );

//刷新进度的进度

sb.setMax(duration);

sb.setProgress(CurrentPosition);

}

};

private static SeekBar sb ;

private MyserviceConn conn;

private MusicIntface mi;

Intent intent;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout. activity_main);

//获取seekbar

sb = (SeekBar) findViewById(R.id.sb);

sb.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

// TODO Auto-generated method stub

//根据拖动的进度改变音乐进度

int progress =seekBar.getProgress();

//改变播放进度

mi.seekTo(progress);

}

@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

}

});

intent = new Intent(this , MusicService.class);

startService( intent);

conn = new MyserviceConn();

bindService( intent, conn, BIND_AUTO_CREATE);

}

class MyserviceConn implements ServiceConnection{

@Override

public void onServiceConnected(ComponentName name, IBinder service) {

// TODO Auto-generated method stub

mi=(MusicIntface) service;

}

@Override

public void onServiceDisconnected(ComponentName name) {

// TODO Auto-generated method stub

}

public void play(View v) {

mi.play();

}

public void pause(View v) {

mi.pause();

}

public void continueplay(View v) {

mi.continueplay();

}

public void exit(View v){

unbindService( conn);

stopService( intent);

}

------------------------------------------------------

服务：

public class MusicService extends Service {

MediaPlayer player;

Timer timer;

@Override

public IBinder onBind(Intent intent) {

// TODO Auto-generated method stub

return new MusicController();

}

class MusicController extends Binder implements MusicIntface{

@Override

public void play() {

MusicService. this.play();

}

@Override

public void pause() {

MusicService. this.pause();

}

@Override

public void continueplay() {

MusicService. this.continueplay();

}

@Override

public void seekTo(int progress) {

// TODO Auto-generated method stub

MusicService. this.seekTo(progress);

}

@Override

public void onDestroy() {

// TODO Auto-generated method stub

super.onDestroy();

//停止播放

player.stop();

//释放占用的资源，此时player对象已经废掉了

player.release();

player = null;

if(timer !=null){

timer.cancel();

timer= null;

}

@Override

public void onCreate() {

// TODO Auto-generated method stub

super.onCreate();

player= new MediaPlayer();

}

public void play(){

//重置

player.reset();

try {

//加载多媒体文件

// player.setDataSource("XXXX");

player.setDataSource( "http://192.168.135.2:8080/mt.mp3" );

// player.prepare();

player.prepareAsync();

// player.start();

player.setOnPreparedListener( new OnPreparedListener() {

//准备完毕时，此方法调用

@Override

public void onPrepared(MediaPlayer mp) {

// TODO Auto-generated method stub

player.start();

addTimer();

}

});

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

//暂停播放

public void pause(){

player.pause();

}

//继续播放

public void continueplay(){

player.start();

}

public void seekTo(int progress){

player.seekTo(progress);

}

public void addTimer(){

if(timer ==null){

timer = new Timer();

timer.schedule( new TimerTask() {

@Override

public void run() {

// TODO Auto-generated method stub

//获取歌曲总时长

int duration = player .getDuration();

//获取歌曲当前播放进度

int CurrentPosition = player.getCurrentPosition();

Message msg= MainActivity.handler .obtainMessage();

//把进度封装至消息对象中

Bundle bundle = new Bundle();

bundle.putInt( "duration", duration);

bundle.putInt( "CurrentPosition", CurrentPosition);

msg.setData(bundle);

MainActivity. handler.sendMessage(msg);

}

//开始计时任务后的5毫秒，第一次执行run方法，以后每500毫秒执行一次

}, 5, 500);

}

-----------------------------------------------------------------------------------

接口

public interface MusicIntface {

void play();

void pause();

void continueplay();

void seekTo( int progress);

}

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