public static boolean isMediaScannerScanning(Context context) {

        boolean result = false;

        Cursor cursor = query(context, MediaStore.getMediaScannerUri(),

                new String [] { MediaStore.MEDIA_SCANNER_VOLUME }, null, null, null);

        if (cursor != null) {

            if (cursor.getCount() == 1) {

                cursor.moveToFirst();

                result = "external".equals(cursor.getString(0));

            }

            cursor.close();

        }

        return result;

    }