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iOS身份证验证

前言

在开发中，基本都需要到注册，而注册通常要输入一些身份信息，当然前端也是需要验证是否是合法的身份证才能提交。这篇文章只是放出个人的代码，不代表全正确！！！

扩展NSString代码

扩展NSString，添加以下方法：

  - (BOOL)hyb_isValidPersonID {   return [NSStringhyb_isValidPersonID:self]; }   + (BOOL)hyb_isValidPersonID:(NSString *)personId {   // 判断位数   if (personId.length != 15 && personId.length != 18) {     return NO;   }   NSString *carid = personId;   long lSumQT = 0;   // 加权因子   int R[] ={7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 };   // 校验码   unsigned char checkers[11]={'1','0','X', '9', '8', '7', '6', '5', '4', '3', '2'};      // 将15位身份证号转换成18位   NSMutableString *str = [NSMutableStringstringWithString:personId];   if (personId.length == 15) {     [strinsertString:@"19"atIndex:6];     long p = 0;     const char *personId = [strUTF8String];          for (int i = 0; i<= 16; i++) {       p += (personId[i] - 48) * R[i];     }          int o = p % 11;     NSString *string_content = [NSStringstringWithFormat:@"%c", checkers[o]];     [strinsertString:string_contentatIndex:[strlength]];     carid = str;   }      // 判断地区码   NSString * sProvince = [caridsubstringToIndex:2];   if (![self_areaCode:sProvince]) {     return NO;   }      // 判断年月日是否有效   // 年份   int strYear = [[self_substringWithString:caridbegin:6end:4]intValue];   // 月份   int strMonth = [[self_substringWithString:caridbegin:10end:2]intValue];   // 日   int strDay = [[self_substringWithString:caridbegin:12end:2]intValue];      NSTimeZone *localZone = [NSTimeZone localTimeZone];   NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];   [dateFormattersetDateStyle:NSDateFormatterMediumStyle];   [dateFormattersetTimeStyle:NSDateFormatterNoStyle];   [dateFormattersetTimeZone:localZone];   [dateFormattersetDateFormat:@"yyyy-MM-dd HH:mm:ss"];   NSDate *date=[dateFormatterdateFrostr:[NSStringstringWithFormat:@"%d-%d-%d 12:01:01",                                               strYear, strMonth, strDay]];   if (date == nil) {     return NO;   }      const char *pid  = [caridUTF8String];   // 检验长度   if(18 != strlen(pid)) return NO;   // 校验数字   for (int i = 0; i < 18; i++) {     if ( !isdigit(pid[i]) && !(('X' == pid[i] || 'x' == pid[i]) && 17 == i) ) {       return NO;     }   }      // 验证最末的校验码   for (int i = 0; i <= 16; i++) {     lSumQT += (pid[i]-48) * R[i];   }      if (checkers[lSumQT%11] != pid[17] ) {     return NO;   }   return YES; }     #pragma mark - Private + (NSString *)_substringWithString:(NSString *)strbegin:(NSInteger)beginend:(NSInteger )end {   return [strsubstringWithRange:NSMakeRange(begin, end)]; }