안드로이드에서 사운드 재생시 멀티 채널 수용하는 SoundManager 구현

출처: http://sgap.springnote.com/pages/5294563

• 게임에서 다양한 효과음을 멀티체널로 호출할 수 있는 SoundManager 클래스입니다.

• 소스는 구글링중에 예제소스 수정하였습니다.

   

[SoundManager.java]

package kr.co.joynuri.animalorchestra;

import java.util.Collection;
import java.util.HashMap;

import android.content.Context;
import android.media.AudioManager;
import android.media.SoundPool;
import android.util.Log;

public class SoundManager {
   
    private static final String LOG_TAG = SoundManager.class.getSimpleName();
   
    private Context mContext;
    private SoundPool mSoundPool;
    private HashMap<Integer, Integer> mSoundPoolMap;
    private AudioManager  mAudioManager;
   
    public SoundManager(Context context) {
        mContext = context;
    }
   
    public void create() {
        mSoundPool = new SoundPool(16, AudioManager.STREAM_MUSIC, 0);
        mSoundPoolMap = new HashMap<Integer, Integer>();
        mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
    }
   
    public void destroy() {
        if (mSoundPoolMap != null) {
            Collection<Integer> soundIds = mSoundPoolMap.values();
            for (int soundId : soundIds) {
                mSoundPool.unload(soundId);
                Log.d(LOG_TAG, "destroy sound id " + soundId);
            }
            mSoundPoolMap = null;
        }
    }
   
    public void load(int key, int resId) {
        Log.d(LOG_TAG, "load...START");
       
        mSoundPoolMap.put(key, mSoundPool.load(mContext, resId, 1));
       
        Log.d(LOG_TAG, "load...END");
    }
   
    public void play(int key) {
        Log.d(LOG_TAG, "play...START");
       
        int streamVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
        mSoundPool.play(
                mSoundPoolMap.get(key),
                streamVolume, streamVolume,
                1, 0, 1f);
       
        Log.d(LOG_TAG, "play...END");
    }
   
    public void playLoop(int key) {
        Log.d(LOG_TAG, "playLoop...START");
       
        int streamVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
        mSoundPool.play(
                mSoundPoolMap.get(key),
                streamVolume, streamVolume,
                1, -1, 1f);
       
        Log.d(LOG_TAG, "playLoop...END");
    }
   
    public void stop(int key) {
        mSoundPool.stop(mSoundPoolMap.get(key));
    }
   
    public void pause(int key) {
        mSoundPool.pause(mSoundPoolMap.get(key));
    }
   
    public void resume(int key) {
        mSoundPool.resume(mSoundPoolMap.get(key));
    }
   
}

 

사용예) 사운드 등록

        int coundIndex = 0;
        mSoundManager = new SoundManager(mContext);
        mSoundManager.create();
        mSoundManager.load(coundIndex++, R.raw.snd_animal_0);
        mSoundManager.load(coundIndex++, R.raw.snd_animal_1);
        mSoundManager.load(coundIndex++, R.raw.snd_animal_2);
        mSoundManager.load(coundIndex++, R.raw.snd_animal_3);
        mSoundManager.load(coundIndex++, R.raw.snd_animal_4);
        mSoundManager.load(coundIndex++, R.raw.snd_animal_5);
        mSoundManager.load(coundIndex++, R.raw.snd_animal_6);
        mSoundManager.load(coundIndex++, R.raw.snd_animal_7);
        mSoundManager.load(coundIndex++, R.raw.snd_animal_8);

사용예) 사운드 해제

        mSoundManager.destroy();

사용예) 사운드 플레이

        mSoundManager.play(index);