Android SoundPool: get notified when end of played

问题

This sound so simple that I can't figure out why I can't find the answer lol

I have a working sound pool class (thanks to a tutorial and some tweaking I did), and it works fine.

the problem now is that I want to be able to change my background music randomly. (not always have the same music in a loop but have 2 or 3 and when one finishes I play one of the 2 others).

problem is I can't find a way to get notified that the music has finished playing.

Any ideas ?

Jason

回答1:

It can't be done with SoundPool as far as I can tell.

The only audio 'player' that I know which can provide a completion notification is MediaPlayer - it's more of a complex beast than SoundPool but allows setting an OnCompletionListener to be notified when playback is complete.

回答2:

This is what I do:

On startup I get the length of each sound-click using a MediaPlayer:

private long getSoundDuration(int rawId){
   MediaPlayer player = MediaPlayer.create(context, rawId);
   int duration = player.getDuration();
   return duration;
}

and store the sound plus the duration together (in a DTO-type object).

回答3:

I have more than 100 short sound clips and SoundPool is my best option. I want to play one clip just after another clip is finished playing. Upon finding that there is no onCompletionListener() equivalent I chose to implement a runnable. This works for me because the first sound is between 1 and 2 seconds long so I have the duration of the runnable set at 2000. Hope they work on this class because its got lots of potential!

回答4:

MediaPlayer is heavy and slow compared with SoundPool, but SoundPool doesn't have setOnCompletionListener. To cope with this issue I implemented a custom class from SoundPool with setOnCompletionListener.

usage: similar to MediaPlayer

creation:

SoundPoolPlayer mPlayer = SoundPoolPlayer.create(context, resId);
mPlayer.setOnCompletionListener(
    new MediaPlayer.OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mp) {  //mp will be null here
            Log.d("debug", "completed");
        }
    };
);
mPlayer.play();

pause:

mPlayer.pause();

stop:

mPlayer.stop();

resume:

mPlayer.resume();

isPlaying:

mPlayer.isPlaying();

any pull request is welcomed. I only implemented what I need here.

来源：https://stackoverflow.com/questions/4436055/android-soundpool-get-notified-when-end-of-played

标签

android

soundpool