Sound Pool Demo : SoundPool « Media « Android

1. Android
2. Media
3. SoundPool

Sound Pool Demo

   

package app.test;

import java.io.IOException;
import android.app.Activity;
import android.content.Context;
import android.content.res.AssetFileDescriptor;
import android.media.AudioManager;
import android.media.SoundPool;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.widget.ToggleButton;

public class Test extends Activity implements SoundPool.OnLoadCompleteListener {
  private static final int SRC_QUALITY = 0;
    private static final int PRIORITY = 1;
  private SoundPool soundPool = null;
    private AudioManager aMgr;

  private int s0;
  private int s1;
  private int s2;
  private int s3;
  private int s4;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }

    @Override
    protected void onResume() {
      soundPool = new SoundPool(4, AudioManager.STREAM_MUSIC, SRC_QUALITY);
      soundPool.setOnLoadCompleteListener(this);

      aMgr = (AudioManager)this.getSystemService(Context.AUDIO_SERVICE);
      s0 = soundPool.load(this, R.raw.s0, PRIORITY);
       s3 = soundPool.load(this, R.raw.s1, PRIORITY);
      s4 = soundPool.load(this, R.raw.s2, PRIORITY);
      s1 = soundPool.load(this, R.raw.s3, PRIORITY);
      try {
      AssetFileDescriptor afd = this.getAssets().openFd("dogbark.mp3");
      s2 = soundPool.load(afd.getFileDescriptor(), 0, afd.getLength(), PRIORITY);
      afd.close();
    } catch (IOException e) {
      e.printStackTrace();
    }
      s2 = soundPool.load("/mnt/sdcard/dogbark.mp3", PRIORITY);

      super.onResume();
    }

    public void doClick(View view) {
      switch(view.getId()) {
      case R.id.button:
        if(((ToggleButton)view).isChecked()) {
          soundPool.autoResume();
        }
        else {
          soundPool.autoPause();
        }
        break;
      }
    }

    @Override
    protected void onPause() {
      soundPool.release();
      soundPool = null;
      super.onPause();
    }

  @Override
  public void onLoadComplete(SoundPool sPool, int sid, int status) {
      final float currentVolume = ((float)aMgr.getStreamVolume(AudioManager.STREAM_MUSIC)) / 
              ((float)aMgr.getStreamMaxVolume(AudioManager.STREAM_MUSIC));
      if(status != 0)
        return;
      if(sid == s0) {
        if(sPool.play(sid, currentVolume, currentVolume,
            PRIORITY, -1, 1.0f) == 0)
            Log.v("soundPool", "Failed to start sound");
      } else if(sid == s3) {
        queueSound(sid, 5000, currentVolume);
      } else if(sid == s4) {
        queueSound(sid, 6000, currentVolume);
      } else if(sid == s1) {
        queueSound(sid, 12000, currentVolume);
      } else if(sid == s2) {
        queueSound(sid, 7000, currentVolume);
      }
  }
  
  private void queueSound(final int sid, final long delay, final float volume) {
    new Handler().postDelayed(new Runnable() {
      @Override
      public void run() {
        if(soundPool == null) return;
          if(soundPool.play(sid, volume, volume,
              PRIORITY, 0, 1.0f) == 0)
              Log.v("soundPool", "Failed to start sound (" + sid + ")");
          queueSound(sid, delay, volume);
      }}, delay);
  }
}

   
    
    
  

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