设置累计天数

也是贴一段代码吧：（过了凌晨12点即认为是第二天，并不是过了24*60*60s后）

//设置累计天数

- (void)setTotalCleanDays

{

    NSDate *yesterday = [NSDate dateWithTimeIntervalSinceNow:-(24*60*60)];

    NSDate *today = [NSDate date];

    

    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];

    [dateFormatter setDateFormat:@"yyyy-MM-dd"];

    NSString *yesterdayDateStr = [dateFormatter stringFromDate:yesterday];

    NSString *todayDateStr = [dateFormatter stringFromDate:today];

    

    NSString *lastDate = [[NSUserDefaults standardUserDefaults] objectForKey:KEYYESTERDAY];

    if (lastDate == nil) {

        NSInteger totalDays = [[NSUserDefaults standardUserDefaults] integerForKey:KEYTOTALCLEANDAYS];

        [[NSUserDefaults standardUserDefaults] setObject:todayDateStr forKey:KEYYESTERDAY];

        [[NSUserDefaults standardUserDefaults] setInteger:++totalDays forKey:KEYTOTALCLEANDAYS];

        [[NSUserDefaults standardUserDefaults] synchronize];

    } else if ([lastDate isEqualToString:todayDateStr]) {

        

    } else if ([lastDate isEqualToString:yesterdayDateStr]) {

        NSInteger totalDays = [[NSUserDefaults standardUserDefaults] integerForKey:KEYTOTALCLEANDAYS];

        [[NSUserDefaults standardUserDefaults] setObject:todayDateStr forKey:KEYYESTERDAY];

        [[NSUserDefaults standardUserDefaults] setInteger:++totalDays forKey:KEYTOTALCLEANDAYS];

        [[NSUserDefaults standardUserDefaults] synchronize];

    } else {

        [[NSUserDefaults standardUserDefaults] setObject:todayDateStr forKey:KEYYESTERDAY];

        [[NSUserDefaults standardUserDefaults] setInteger:0 forKey:KEYTOTALCLEANDAYS];

        [[NSUserDefaults standardUserDefaults] synchronize];

    }

}