phone static method

Implementation

static Validator phone([String countryCode = 'NG', String? text]) {
  return (String? value) {
    if (value == null) {
      return null;
    }

    PhoneNumberUtil phoneUtil = PhoneNumberUtil.instance;
    try {
      final phone = phoneUtil.parse(value, countryCode);
      bool isValid = phoneUtil.isValidNumber(phone);
      return !isValid ? (text ?? "Please enter a valid phone number") : null;
    } on NumberParseException catch (_) {
      return (text ?? "Please enter a valid phone number");
    } catch (_) {
      return (text ?? "Please enter a valid phone number");
    }
  };
}