private ArrayList<int[]> splitRange(String str) {
   /* if (str == null || str.charAt(0) != '('
            || str.charAt(str.length() - 1) != ')') {
        Log.e(TAG, "Invalid range list string=" + str);
        return null;
    }*/
    ArrayList<int[]> rangeList = new ArrayList<int[]>();
    int endIndex, fromIndex = 1;
    do {
        int[] range = new int[2];
        endIndex = str.indexOf("),(", fromIndex);
        if (endIndex == -1) endIndex = str.length() - 1;
        splitInt(str.substring(fromIndex, endIndex), range);
        rangeList.add(range);
        fromIndex = endIndex + 3;
    } while (endIndex != str.length() - 1);

    if (rangeList.size() == 0) return null;
    return rangeList;
}