Android：声音池和服务

概述我已经创建了实现媒体播放器类的服务来播放背景音乐.但是现在我想转换成声音池以便可以播放多个声音. 可以帮助任何可以为我提供源代码的一些链接？提前致谢.解决方法:我刚用背景音实现了服务,我已经检查了http://android-er.blogspot.com/2010/11/play-audio-resources-using-sou

我已经创建了实现媒体播放器类的服务来播放背景音乐.但是现在我想转换成声音池以便可以播放多个声音.
 可以帮助任何可以为我提供源代码的一些链接？

提前致谢.

解决方法:

我刚用背景音实现了服务,我已经检查了http://android-er.blogspot.com/2010/11/play-audio-resources-using-soundpool.html和http://developer.android.com/guide/topics/fundamentals/bound-services.html的代码

public class LocalService extends Service {    // Binder given to clIEnts    private final IBinder mBinder = new LocalBinder();    // Random number generator    private final Random mGenerator = new Random();    private SoundPool soundPool;    private HashMap<Integer, Integer> soundsMap;    int SOUND1=1;    int SOUND2=2;    @OverrIDe    public voID onCreate() {        // Todo auto-generated method stub        super.onCreate();        soundPool = new SoundPool(4, AudioManager.STREAM_MUSIC, 100);        soundsMap = new HashMap<Integer, Integer>();        soundsMap.put(SOUND1, soundPool.load(this, R.raw.baby_laugh, 1));        soundsMap.put(SOUND2, soundPool.load(this, R.raw.touchdown, 1));    }    public voID playSound(int sound, float fSpeed) {        AudioManager mgr = (AudioManager)getSystemService(Context.AUdio_SERVICE);        float streamVolumeCurrent = mgr.getStreamVolume(AudioManager.STREAM_MUSIC);        float streamVolumeMax = mgr.getStreamMaxVolume(AudioManager.STREAM_MUSIC);        float volume = streamVolumeCurrent / streamVolumeMax;        soundPool.play(soundsMap.get(sound), volume, volume, 1, 0, fSpeed);       }    /**     * Class used for the clIEnt Binder.  Because we kNow this service always     * runs in the same process as its clIEnts, we don't need to deal with IPC.     */    public class LocalBinder extends Binder {        LocalService getService() {            // Return this instance of LocalService so clIEnts can call public methods            return LocalService.this;        }    }    @OverrIDe    public IBinder onBind(Intent intent) {        return mBinder;    }    /** method for clIEnts */    public int getRandomNumber() {      return mGenerator.nextInt(100);    }    public voID soundplay(int index){         playSound(index, 1.0f);         Log.d("SOUND1","hi1");    }   }

你从Activity调用

public class Test extends Activity implements OnClickListener {    LocalService mService;    boolean mBound = false;    @OverrIDe    protected voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.main);        button btn=(button)findVIEwByID(R.ID.a_button);        btn.setonClickListener(this);    }    @OverrIDe    protected voID onStart() {        super.onStart();        // Bind to LocalService        Intent intent = new Intent(this, LocalService.class);        bindService(intent, mConnection, Context.BIND_auto_CREATE);    }    @OverrIDe    protected voID onStop() {        super.onStop();        // Unbind from the service      if (mBound) {            unbindService(mConnection);            mBound = false;        }    }    /** Called when a button is clicked (the button in the layout file attaches to      * this method with the androID:onClick attribute) */    public voID onbuttonClick(VIEw v) {        if (mBound) {            // Call a method from the LocalService.            // However, if this call were something that might hang, then this request should            // occur in a separate thread to avoID slowing down the activity performance.            int num = mService.getRandomNumber();            Toast.makeText(this, "number: " + num, Toast.LENGTH_SHORT).show();        }    }    /** defines callbacks for service binding, passed to bindService() */    private ServiceConnection mConnection = new ServiceConnection() {        public voID onServiceConnected(Componentname classname,                IBinder service) {            // We've bound to LocalService, cast the IBinder and get LocalService instance            LocalBinder binder = (LocalBinder) service;            mService = binder.getService();            mBound = true;        }        public voID onServicedisconnected(Componentname arg0) {            mBound = false;        }    };    public voID onClick(VIEw arg0) {        if (mBound) {            // Call a method from the LocalService.            // However, if this call were something that might hang, then this request should            // occur in a separate thread to avoID slowing down the activity performance.               mService.soundplay(1);            int num = mService.getRandomNumber();            Toast.makeText(this, "number: " + num, Toast.LENGTH_SHORT).show();        }    }}

感谢所有帮助我的人.特别是谁写博客.

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