一.前言
最近做一個(gè)智能幼教產(chǎn)品鸿摇，需要通過出生年月計(jì)算兒童用戶的年齡大小飞醉，寫了一個(gè)簡(jiǎn)單的函數(shù)方法調(diào)用如下，希望能給有需要人有所幫助痛侍，不正之處望多指正！
pragma mark -- 生日轉(zhuǎn)化為年齡
+(NSString *)countAgeWithBirthDay:(NSString *)birth{
//定義一個(gè)NSCalendar對(duì)象
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDate *nowDate = [NSDate date];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"yyyy-MM-dd"];
//生日
NSDate *birthDay = [dateFormatter dateFromString:birth];
//用來得到詳細(xì)的時(shí)差
unsigned int unitFlags = NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit|NSHourCalendarUnit|NSMinuteCalendarUnit|NSSecondCalendarUnit;
NSDateComponents *date = [calendar components:unitFlags fromDate:birthDay toDate:nowDate options:0];
if([date year] >0)
{
NSLog(@"%@",[NSString stringWithFormat:(@"%ld歲%ld月%ld天"),(long)[date year],(long)[date month],(long)[date day]]) ;
return [NSString stringWithFormat:(@"%ld歲%ld月%ld天"),(long)[date year],(long)[date month],(long)[date day]] ;
}
else if([date month] >0)
{
NSLog(@"%@",[NSString stringWithFormat:(@"%ld月%ld天"),(long)[date month],(long)[date day]]);
return [NSString stringWithFormat:(@"%ld月%ld天"),(long)[date month],(long)[date day]] ;
}
else if([date day]>0){
NSLog(@"%@",[NSString stringWithFormat:(@"%ld天"),(long)[date day]]);
return [NSString stringWithFormat:(@"%ld天"),(long)[date day]] ;
}
else {
NSLog(@"0天");
return @"0" ;
}
}
