//MARK: - 獲取本月的第一天和最后一天
- (NSString *)getMonthBeginWith:(NSString *)dateStr {
NSDateFormatter *format=[[NSDateFormatter alloc] init];
[format setDateFormat:@"yyyy-MM"];
NSDate *newDate=[format dateFromString:dateStr];
double interval = 0;
NSDate *beginDate = nil;
NSDate *endDate = nil;
NSCalendar *calendar = [NSCalendar currentCalendar];
[calendar setFirstWeekday:2];//設(shè)定周一為周首日
BOOL ok = [calendar rangeOfUnit:NSCalendarUnitMonth startDate:&beginDate interval:&interval forDate:newDate];
//分別修改為 NSDayCalendarUnit NSWeekCalendarUnit NSYearCalendarUnit
if (ok) {
endDate = [beginDate dateByAddingTimeInterval:interval-1];
}else {
return @"";
}
NSDateFormatter *myDateFormatter = [[NSDateFormatter alloc] init];
[myDateFormatter setDateFormat:@"YYYY-MM-dd"];
NSString *beginString = [myDateFormatter stringFromDate:beginDate];
return beginString;
} - (NSString *)getMonthEndWith:(NSString *)dateStr {
NSDateFormatter *format=[[NSDateFormatter alloc] init];
[format setDateFormat:@"yyyy-MM"];
NSDate *newDate=[format dateFromString:dateStr];
double interval = 0;
NSDate *beginDate = nil;
NSDate *endDate = nil;
NSCalendar *calendar = [NSCalendar currentCalendar];
[calendar setFirstWeekday:2];//設(shè)定周一為周首日
BOOL ok = [calendar rangeOfUnit:NSCalendarUnitMonth startDate:&beginDate interval:&interval forDate:newDate];
//分別修改為 NSDayCalendarUnit NSWeekCalendarUnit NSYearCalendarUnit
if (ok) {
endDate = [beginDate dateByAddingTimeInterval:interval-1];
}else {
return @"";
}
NSDateFormatter *myDateFormatter = [[NSDateFormatter alloc] init];
[myDateFormatter setDateFormat:@"YYYY-MM-dd"];
NSString *endString = [myDateFormatter stringFromDate:endDate];
return endString;
}
