안드로이드 전화번호 포맷설정

 
public static String setPhoneNumber(String result) {

   boolean flag = false;

   if (result.startsWith("0"))
      flag = true;

   DecimalFormatSymbols dfs = new DecimalFormatSymbols();
   dfs.setGroupingSeparator('-');

   DecimalFormat df = new DecimalFormat("###,####,####");
   df.setDecimalFormatSymbols(dfs);

   try {
      double inputNum = Double.parseDouble(result);
      result = df.format(inputNum).toString();

      if (flag) {
         if (!result.equals("0"))
            result = "0" + result;
      }

   } catch (NumberFormatException e) {
      // TODO: handle exception
   }

   return result;
}