根据身份证号计算年龄 15位或18位身份证号的年龄计算方法
#pragma mark - 根据身份证号获取生日（15位）
-(NSString*)birthdayStrFromIdentityCardFifteen:(NSString *)numberStr {
NSMutableString*result = [NSMutableStringstringWithCapacity:0];
NSString *year = nil;
NSString *month = nil;
BOOL isAllNumber = YES;
NSString *day = nil;
if([numberStr length]<14)
return result;
//**截取前12位
NSString *fontNumer =[numberStr substringWithRange:NSMakeRange(0, 11)];
//**检测前12位否全都是数字;
const char *str =[fontNumer UTF8String];
const char *p = str;
while (*p!='\0') {
if(!(*p>='0'&&*p<='9'))
isAllNumber = NO;
p++;
}
if(!isAllNumber)
return result;
year = [NSString stringWithFormat:@"19%@",[numberStrsubstringWithRange:NSMakeRange(6, 2)]];
month = [numberStr substringWithRange:NSMakeRange(8, 2)];
day = [numberStr substringWithRange:NSMakeRange(10,2)];
[result appendString:year];
[result appendString:@"-"];
[result appendString:month];
[result appendString:@"-"];
[result appendString:day];
return result;
}
#pragma mark - 根据身份证号获取生日（18位）
-(NSString*)birthdayStrFromIdentityCard:(NSString *)numberStr {
NSMutableString*result = [NSMutableStringstringWithCapacity:0];
NSString *year = nil;
NSString *month = nil;
BOOL isAllNumber = YES;
NSString *day = nil;
if([numberStr length]<14)
return result;
//**截取前14位
NSString *fontNumer =[numberStr substringWithRange:NSMakeRange(0, 13)];
//**检测前14位否全都是数字;
const char *str =[fontNumer UTF8String];
const char *p = str;
while (*p!='\0') {
if(!(*p>='0'&&*p<='9'))
isAllNumber = NO;
p++;
}
if(!isAllNumber)
return result;
year = [numberStr substringWithRange:NSMakeRange(6, 4)];
month = [numberStr substringWithRange:NSMakeRange(10, 2)];
day = [numberStr substringWithRange:NSMakeRange(12,2)];
[result appendString:year];
[result appendString:@"-"];
[result appendString:month];
[result appendString:@"-"];
[result appendString:day];
return result;
}
#pragma mark - 根据身份证号获取年龄
-(NSString*)getIdentityCardAge {
if (self.length == 18) {
NSDateFormatter *formatterTow = [[NSDateFormatteralloc]init];
[formatterTow setDateFormat:@"yyyy-MM-dd"];
NSDate *bsyDate = [formatterTow dateFromString:[self birthdayStrFromIdentityCard:self]];
NSTimeInterval dateDiff = [bsyDate timeIntervalSinceNow];
int age = trunc(dateDiff/(60*60*24))/365;
return [NSStringstringWithFormat:@"%d",-age];
} else {
NSDateFormatter *formatterTow = [[NSDateFormatteralloc]init];
[formatterTow setDateFormat:@"yyyy-MM-dd"];
NSDate *bsyDate = [formatterTow dateFromString:[self birthdayStrFromIdentityCardFifteen:self]];
NSTimeInterval dateDiff = [bsyDate timeIntervalSinceNow];
int age = trunc(dateDiff/(60*60*24))/365;
return [NSStringstringWithFormat:@"%d",-age];
}
}