Ios NSPredicate:使用filteredArrayUsingPredicate筛选NSDateComponents数组时发送到实例的无法识别的选择器

我有一些代码，其中包含从现在到一年的日期数组

        NSCalendar* calendar = [NSCalendar currentCalendar];
        NSMutableArray *dateComponentsInRange = [NSMutableArray new];
        NSDate *curDate = [dates objectAtIndex:0];

        while ([curDate timeIntervalSince1970] <= [[dates lastObject] timeIntervalSince1970])
        {
            NSDateComponents *components = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:curDate];
            [dateComponentsInRange addObject:components];
            curDate = [curDate dateWithNextDay];
        }

但是我得到了以下错误

 [__NSCFString evaluateWithObject:substitutionVariables:]: unrecognized selector sent to instance

---

将字符串添加到数组并将其用作谓词

尝试：

---

根据Apple Docs

orPredicateWithSubpredicates

的说法，它需要一个

NSPredicate

数组，但您传递的是一个

NSString

对象数组

错误是

[\uu NSCFString evaluateWithObject:substitutionVariables::]：发送到实例的选择器无法识别

这是正确的，因为

evaluateWithObject:substitutionVariables

不是为

NSString

定义的，而是为

NSPredicate

---

Src:Apple Documentation

确保没有零日期。您错过了错误消息的重要部分。剩下的怎么说？数组中没有nil日期，我甚至用数组中的一个非nil元素尝试过，但仍然得到了错误，这就是我得到的所有消息

 [__NSCFString evaluateWithObject:substitutionVariables:]: unrecognized selector sent to instance

    NSDateComponents *components = nil;
    NSMutableArray *predicates = [NSMutableArray array];;
    for (NSDate *currentdate in dates)
    {
        components = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:currentdate];
        NSString *preficateFormat = [NSString stringWithFormat:@"(SELF.day  != %d AND SELF.month != %d AND SELF.year != %d)",[components day],[components month], [components year]];
        NSPredicate * predicate = [NSPredicate predicateWithFormat:preficateFormat];
        [predicates addObject:predicate];
    }
    NSPredicate *predicate = [NSCompoundPredicate orPredicateWithSubpredicates:predicates];
    NSArray *filteredArr = [dateComponentsInRange filteredArrayUsingPredicate:predicate];