NSString *reg = @"/(^\\d{18}$)|(^\\d{17}(\\d|X|x)$)/";
NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", reg];
BOOL isMatch = [pred evaluateWithObject:IDCardNo];
if (isMatch) {
NSString *cityNo=[IDCardNo substringWithRange:NSMakeRange(0, 2)];
if ([self checkCityNo:cityNo]) {
NSString *birth= [IDCardNo substringWithRange:NSMakeRange(6,
] ;
NSDateFormatter *inputFormatter = [[[NSDateFormatter alloc] init] autorelease];
[inputFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@"en_US"] autorelease]];
[inputFormatter setDateFormat:@"yyyyMMdd"];
NSDate* inputDate = [inputFormatter dateFromString:birth];
if (inputDate) {
const int factor[] = { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 };//加权因子
const int checktable[] = { 1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2 };//校验值对应表
int checksum = 0;
NSString *befor17=[IDCardNo substringWithRange:NSMakeRange(0,17)];
for(int i=0; i<17; i++) {
int num=[[befor17 substringWithRange:NSMakeRange(i,1)] intValue]*factor[i];
checksum+=num;
}
int yushu=checksum%11;
if (yushu>10) {
return NO;
}else{
int s=checktable[yushu];
NSString *checkNoStr=[IDCardNo substringWithRange:NSMakeRange(17, 1)] ;
if (checkNoStr) {
if ( [checkNoStr isEqualToString:@"X"]) {
if (s==2) {
return YES;
}
return NO;
}
else if([checkNoStr intValue]==s){
return YES;
}
}
}
}
}
}
return NO;
}
-(BOOL)checkCityNo:(NSString *)cityNo{
NSArray *cityCode=[NSArray arrayWithObjects:@"11",@"12",@"13",@"14",@"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", nil];
for (int i=0; i<[cityCode count]; i++) {
if ([cityNo isEqual:cityCode[i]]) {
return YES;
}
}
return NO;
}