public class BackmusicService extends Service{
MediaPlayer mp=new MediaPlayer();
Mbinder binder=new Mbinder();
AudioManager  audioManager;

boolean isSilent=false;

    public void setsilent(boolean isSilent){
        if(isSilent){
            audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,0,0);    
            }else{
            audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,1000,1000);
            }

    }
    public void setvolum(int setting){
        audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,setting,100);

    }
    public void onCreate() {
        // TODO Auto-generated method stub
        File file=new File(Environment.getExternalStorageDirectory().getPath()+"/nanshannan.mp3");
        if(file.exists()){
            try {
                mp.setDataSource(file.getAbsolutePath());
                mp.prepare();
            } catch (IllegalArgumentException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (SecurityException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IllegalStateException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
             audioManager=(AudioManager) getSystemService(Context.AUDIO_SERVICE);
            mp.start();
        }
        super.onCreate();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        // TODO Auto-generated method stub
        mp.start();
        return super.onStartCommand(intent, flags, startId);
    }

    @Override
    public void onDestroy() {
        // TODO Auto-generated method stub
        super.onDestroy();
        if(mp.isPlaying()){
            mp.stop();
            mp.release();
            
        }
    }


    public class Mbinder extends Binder{
        public BackmusicService getBackmusicService(){
            return BackmusicService.this;
            
        }
    }
    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return binder;
    }