Google glass GDK

网上转的都太不靠谱了 ＝ ＝ 在一个MP3播放器里面挖了出来，用时就用上了～

    public static Bitmap getAlbumArtWork(String filePath) {
        try {
            MediaMetadataRetriever metaRetriver = new MediaMetadataRetriever();
            metaRetriver.setDataSource(filePath);
            byte[] album = metaRetriver.getEmbeddedPicture();
            if (album != null) {
                BitmapFactory.Options opts = new BitmapFactory.Options();
                opts.inJustDecodeBounds = true;
                BitmapFactory.decodeByteArray(album, 0, album.length, opts);
                opts.inSampleSize = calculateInSampleSize(opts);
                opts.inJustDecodeBounds = false;
                return BitmapFactory.decodeByteArray(album, 0, album.length, opts);
            }
            return null;
        } catch (Exception e) {
            return null;
        }
    }   
    public static int calculateInSampleSize(BitmapFactory.Options options) {
        // Raw height and width of image
        final int height = options.outHeight;
        final int width = options.outWidth;
        int inSampleSize = 1;
        //Our height and width will always be the same since all glass has the same resolution, for now...
        if (height > 360 || width > 640) {
            final int halfHeight = height / 2;
            final int halfWidth = width / 2;
            // Calculate the largest inSampleSize value that is a power of 2 and keeps both
            // height and width larger than the requested height and width.
            while ((halfHeight / inSampleSize) > 360 && (halfWidth / inSampleSize) > 640) {
                inSampleSize *= 2;
            }
        }

        return inSampleSize;
    }