get_bitmap_from_apk_expansion.java

public static Bitmap getBitmapExt(Context context, String name){

        Bitmap bitmap = null;

        try {

            if(expansionFile == null){
                PackageInfo pInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
                expansionFile = APKExpansionSupport.getAPKExpansionZipFile(context, pInfo.versionCode, 0);
            }

            InputStream is = expansionFile.getInputStream("images/" + name + ".png");
            bitmap = BitmapFactory.decodeStream(is);
        }
        catch (Exception e){
            e.printStackTrace();
        }

        return bitmap;
    }