android jobb工具,如何使用jobb工具創建.obb文件作爲主apk擴展文件？

Tip: If you're packaging media files into a ZIP, you can use media playback calls on the files with offset and length controls (such as MediaPlayer.setDataSource() and SoundPool.load()) without the need to unpack your ZIP. In order for this to work, you must not perform additional compression on the media files when creating the ZIP packages. For example, when using the zip tool, you should use the -n option to specify the file suffixes that should not be compressed: zip -n .mp4;.ogg main_expansion media_files

OR 如何讓0％壓縮ZIP使用winrar？

看到這裏的壓縮方法

，所以我們應該有上傳此拉鍊在Play商店。

，所以你不需要使用ZipHelper.java

只是簡單地使用

ZipResourceFile expansionFile=null;

try {

expansionFile = APKExpansionSupport.getAPKExpansionZipFile(getApplicationContext(),3,0);

AssetFileDescriptor fd = expansionFile.getAssetFileDescriptor("test.mp4");

MediaPlayer mPlayer = new MediaPlayer();

mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);

mPlayer.setDataSource(fd.getFileDescriptor(),fd.getStartOffset(),fd.getLength());

mPlayer.prepare();

mPlayer.start();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}