Question

我是一名新手程序员，我在这个问题上已经挣扎了两个星期。我正在使用cocoapods的JTCalendar。它旨在返回AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate]; NSManagedObjectContext *context = [appDelegate managedObjectContext]; NSManagedObject *savedate; savedate = [NSEntityDescription insertNewObjectForEntityForName:@"AlarmData" inManagedObjectContext:context]; [savedate setValue:CT forKey:@"alarmDate"]; [context save:&error]; BOOL isSaved = [appDelegate.managedObjectContext save:&error]; NSLog(@"success!!!!, %@", savedate);下的日期它将在日历上显示为一个点以显示事件。要保存我的活动，请使用以下代码：

- (BOOL)calendarHaveEvent:(JTCalendar *)calendar date:(NSDate *)date
{
    AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
    NSManagedObjectContext *context = [appDelegate managedObjectContext];





    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"dd-MM-yyyy"];
    NSString *textDate = [NSString stringWithFormat:@"%@",[dateFormatter stringFromDate:[NSDate date]]];
    NSLog(@"Date %@",textDate);

     NSDate *startDate = [dateFormatter dateFromString:@"31-12-1981"];
    NSDate *endDate = [dateFormatter dateFromString:@"31-12-2999"];


    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"(alarmDate >= %@) AND (date <= %@)", startDate, endDate];

    NSFetchRequest *request = [[NSFetchRequest alloc] init];
    [request setEntity:[NSEntityDescription entityForName:@"AlarmData" inManagedObjectContext:context]];
    [request setPredicate:predicate];

    NSError *error;
    NSArray *matchingData = [context executeFetchRequest:request error:&error];

        NSString *alarmDate =  [ NSString  stringWithFormat:@"dd-MM-yyyy"];

        for (NSManagedObject *obj in matchingData) {
            alarmDate = [obj valueForKey:@"alarmDate"];

            return alarmDate;'

以及以下内容尝试获取日期并“返回”它：

// Top of file
App::uses('PaginatorHelper', 'View/Helper');

// Later in controller method
$paginatorHelper = new PaginatorHelper(new View(null));
$records = $this->paginate();
$count = $paginatorHelper->params()['count'];

可悲的是，结果看起来像这样，每个日期似乎都返回一个点下方：

https://drive.google.com/file/d/0Bw0Kf2Z9-yb8Zm5LWnZUUkRJRzQ/view?usp=sharing

我只想让我的单一日期归还，长期坚持下去。谢谢！

Answer 1

for (NSManagedObject *obj in matchingData) {
            alarmDate = [obj valueForKey:@"alarmDate"];

            return alarmDate;'

无论您在方法参数中的日期是什么，总是返回第一个对象的alamrDate。使用您的参数检查日期，然后返回此日期是否有alerm。

日历事件应用的核心数据谓词

1 个答案: