Mp3 files in the android assets folder fail to play from APK

[timothyleerussell]

Does anyone have any experience with this problem?

It is driving me crazy since this should work.

http://stackoverflow.com/questions/9124378/mp3-audio-in-the-android-assets-folder-fails-to-play-from-a-signed-and-zip-align

[timothyleerussell]

So, I gave up on this problem and did the work to load the mp3 files from the "res/raw" directory. Frustrating that mp3 files in assets folder don't seem to work right though.

Based on that, I have a couple small suggestions about the file:

MusicFactory.java

While converting to using "res/raw", I had a problem with createMusicFromResource() failing due to .prepare() being called on twice. Once in MediaPlayer.create() and once with mediaPlayer.prepare().

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Using java Syntax Highlighting

1. public static Music createMusicFromResource(final MusicManager pMusicManager, final Context pContext, final int pMusicResID) throws IOException {
2.         final MediaPlayer mediaPlayer = MediaPlayer.create(pContext, pMusicResID);
3.  
4. //comment out this---------------------------------
5.         //http://groups.google.com/group/android-developers/browse_thread/thread/260f2951d4a23445?fwc=1
6.         //mediaPlayer.prepare();
7. //comment out this---------------------------------
8.  
9.         final Music music = new Music(pMusicManager, mediaPlayer);
10.         pMusicManager.add(music);
11.  
12.         return music;
13.     }
14.  

Parsed in 0.032 seconds, using GeSHi 1.0.8.4

One other thing -- in createMusicFromAsset(), I'm not sure if assetFileDescriptor.close() should be explicitly called?

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Using java Syntax Highlighting

1.  public static Music createMusicFromAsset(final MusicManager pMusicManager, final Context pContext, final String pAssetPath) throws IOException {
2.         final MediaPlayer mediaPlayer = new MediaPlayer();
3.  
4.         final AssetFileDescriptor assetFileDescritor = pContext.getAssets().openFd(MusicFactory.sAssetBasePath + pAssetPath);
5.         mediaPlayer.setDataSource(assetFileDescritor.getFileDescriptor(), assetFileDescritor.getStartOffset(), assetFileDescritor.getLength());
6.  
7. //add this ? ---------------------------------------
8.         //close the descriptor
9.         assetFileDescritor.close();
10. //add this ? ---------------------------------------
11.  
12.         mediaPlayer.prepare();
13.  
14.         final Music music = new Music(pMusicManager, mediaPlayer);
15.         pMusicManager.add(music);
16.  
17.         return music;
18.     }

Parsed in 0.032 seconds, using GeSHi 1.0.8.4

[brigosx]

I've just commented out the "mediaPlayer.prepare();" in the related loading methods inside the MusicFactory.java class and the problem resolved; at least when I've used the "createMusicFromResource" method.