转载自 魏超的博客
- (void)getMonthBeginAndEndWith:(NSDate *)newDate{
if (newDate == nil) {
newDate = [NSDate date];
}
double interval = 0;
NSDate *beginDate = nil;
NSDate *endDate = nil;
NSCalendar *calendar = [NSCalendar currentCalendar];
[calendar setFirstWeekday:2];//设定周一为周首日
BOOL ok = [calendar rangeOfUnit:NSMonthCalendarUnit startDate:&beginDate interval:&interval forDate:newDate];
// 分别修改为 NSCalendarUnitDay NSCalendarUnitWeekOfYear NSCalendarUnitYear
if (ok) {
endDate = [beginDate dateByAddingTimeInterval:interval-1];
}else {
return;
}
NSDateFormatter *myDateFormatter = [[NSDateFormatter alloc] init];
[myDateFormatter setDateFormat:@"yyyy.MM.dd"];
NSString *beginString = [myDateFormatter stringFromDate:beginDate];
NSString *endString = [myDateFormatter stringFromDate:endDate];
NSString *s = [NSString stringWithFormat:@"%@-%@",beginString,endString];
NSLog(@"%@",s);
}
