http://blog.csdn.net/djl4104804/article/details/17114143 （转载）收藏

OC版

+ (BOOL)validateIDCardNumber:(NSString *)value
{

    value = [value stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];

    int length = 0;

    if (!value) {
        return NO;
    }
    else {
        length = (int)value.length;

        if (length !=15 && length !=18) {
            return NO;
        }
    }
    // 省份代码
    NSArray *areasArray =@[@"11",@"12", @"13",@"14", @"15",@"21", @"22",@"23", @"31",@"32", @"33",@"34", @"35",@"36", @"37",@"41",@"42",@"43", @"44",@"45", @"46",@"50", @"51",@"52", @"53",@"54", @"61",@"62", @"63",@"64", @"65",@"71", @"81",@"82", @"91"];

    NSString *valueStart2 = [value substringToIndex:2];

    BOOL areaFlag =NO;

    for (NSString *areaCode in areasArray) {

        if ([areaCode isEqualToString:valueStart2]) {
            areaFlag =YES;
            break;
        }
    }

    if (!areaFlag) {
        return NO;
    }


    NSRegularExpression *regularExpression;
    NSUInteger numberofMatch;
    int year =0;
    switch (length) {
        case 15:{
            year = [value substringWithRange:NSMakeRange(6,2)].intValue +1900;
            if (year %4 ==0 || (year %100 ==0 && year %4 ==0)) {
                regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$"
                                                                        options:NSRegularExpressionCaseInsensitive
                                                                          error:nil];//测试出生日期的合法性
            }else {
                regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$"
                                                                        options:NSRegularExpressionCaseInsensitive
                                                                          error:nil];//测试出生日期的合法性
            }
            numberofMatch = [regularExpression numberOfMatchesInString:value
                                                               options:NSMatchingReportProgress
                                                                 range:NSMakeRange(0, value.length)];

            if(numberofMatch >0) {
                
                return YES;
            }else {
                return NO;
            }
        }
    case 18:
        year = [value substringWithRange:NSMakeRange(6,4)].intValue;
        if (year %4 ==0 || (year %100 ==0 && year %4 ==0)) {
            regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}((19[0-9]{2})|(2[0-9]{3}))((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$"
                                                                   options:NSRegularExpressionCaseInsensitive
                                                                     error:nil];//测试出生日期的合法性
        }else {
            regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}((19[0-9]{2})|(2[0-9]{3}))((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$"
                                                                   options:NSRegularExpressionCaseInsensitive
                                                                     error:nil];//测试出生日期的合法性
        }
        numberofMatch = [regularExpression numberOfMatchesInString:value
                                                          options:NSMatchingReportProgress
                                                            range:NSMakeRange(0, value.length)];

        if(numberofMatch >0) {

            int S = ([value substringWithRange:NSMakeRange(0,1)].intValue + [value substringWithRange:NSMakeRange(10,1)].intValue) *7 + ([value substringWithRange:NSMakeRange(1,1)].intValue + [value substringWithRange:NSMakeRange(11,1)].intValue) *9 + ([value substringWithRange:NSMakeRange(2,1)].intValue + [value substringWithRange:NSMakeRange(12,1)].intValue) *10 + ([value substringWithRange:NSMakeRange(3,1)].intValue + [value substringWithRange:NSMakeRange(13,1)].intValue) *5 + ([value substringWithRange:NSMakeRange(4,1)].intValue + [value substringWithRange:NSMakeRange(14,1)].intValue) *8 + ([value substringWithRange:NSMakeRange(5,1)].intValue + [value substringWithRange:NSMakeRange(15,1)].intValue) *4 + ([value substringWithRange:NSMakeRange(6,1)].intValue + [value substringWithRange:NSMakeRange(16,1)].intValue) *2 + [value substringWithRange:NSMakeRange(7,1)].intValue *1 + [value substringWithRange:NSMakeRange(8,1)].intValue *6 + [value substringWithRange:NSMakeRange(9,1)].intValue *3;
            
            int Y = S %11;

            NSString *M =@"F";
            
            NSString *JYM =@"10X98765432";
            
            M = [JYM substringWithRange:NSMakeRange(Y,1)];// 判断校验位
            
            if ([M isEqualToString:[value substringWithRange:NSMakeRange(17,1)]]) {
                return YES;// 检测ID的校验位
            }else {
                return NO;
            }
        }else {
            
            return NO;
        }
        default:
            return NO;
    }
}