我正在使用日历应用程序。
我花了整整一个月的时间来获取当天的 Activity 。我必须这样做以处理递归事件和超过一天的事件。
除以下情况外,它的工作效果非常好:几天 Activity 的最后一天。我在该 Activity 的其他几天看到了该 Activity ,但没有看到最后一个 Activity 。 (我处于GMT + 1时区,这就是为什么我有这个时间)
SEARCH FOR THE LAST DAY OF EVENT
Start: 2013-03-25 23:00:00 +0000
End: 2013-03-26 22:59:59 +0000
EVENT
Start: 2013-03-24 21:00:06 +0000
End: 2013-03-26 21:00:06 +0000
No results!
这是返回当天事件的方法:
+ (NSArray *)ekEventsWithStartDate:(NSDate*)startDate endDate:(NSDate*)endDate
{
NSLog(@"ekEventsWithStartDate:%@ endDate:%@",startDate,endDate);
NSPredicate *predicate = [_eventStore predicateForEventsWithStartDate:startDate
endDate:endDate
calendars:nil];
NSArray *events = [_eventStore eventsMatchingPredicate:predicate];
NSLog(@"events (%d):%@",[events count],events);
return events;
}
以下是 Activity 详细信息:
EKEvent <0xb0635e0> {EKEvent <0xb0635e0>
{title = 24-26 Mars 10 PM;
location = ;
calendar = EKCalendar <0xb3c3c80> {title = Calendar; type = Local; allowsModify = YES; color = #0E61B9;};
alarms = (null);
URL = (null);
lastModified = 2013-03-19 22:11:10 +0000;
timeZone = Europe/Paris (GMT+01:00) offset 3600};
location = ;
startDate = 2013-03-24 21:00:06 +0000;
endDate = 2013-03-26 21:00:06 +0000;
allDay = 0;
floating = 0;
recurrence = (null);
attendees = (null)}
这是ekEventsWithStartDate方法记录此事件3天的日志:
ekEventsWithStartDate:2013-03-23 23:00:00 +0000 endDate:2013-03-24 22:59:59 +0000
events (1):(
"EKEvent <0x9b44c00> {EKEvent <0x9b44c00> {title = 24-26 Mars 10 PM; location = ; calendar = EKCalendar <0xb336870> {title = Calendar; type = Local; allowsModify = YES; color = #0E61B9;}; alarms = (null); URL = (null); lastModified = 2013-03-19 22:11:10 +0000; timeZone = Europe/Paris (GMT+01:00) offset 3600}; location = ; startDate = 2013-03-24 21:00:06 +0000; endDate = 2013-03-26 21:00:06 +0000; allDay = 0; floating = 0; recurrence = (null); attendees = (null)}"
)
ekEventsWithStartDate:2013-03-24 23:00:00 +0000 endDate:2013-03-25 22:59:59 +0000
events (1):(
"EKEvent <0xb28b970> {EKEvent <0xb28b970> {title = 24-26 Mars 10 PM; location = ; calendar = EKCalendar <0xb336870> {title = Calendar; type = Local; allowsModify = YES; color = #0E61B9;}; alarms = (null); URL = (null); lastModified = 2013-03-19 22:11:10 +0000; timeZone = Europe/Paris (GMT+01:00) offset 3600}; location = ; startDate = 2013-03-24 21:00:06 +0000; endDate = 2013-03-26 21:00:06 +0000; allDay = 0; floating = 0; recurrence = (null); attendees = (null)}"
)
ekEventsWithStartDate:2013-03-25 23:00:00 +0000 endDate:2013-03-26 22:59:59 +0000
events (0):(null)
为什么方法返回空数组?
附属问题:是否有更好的方法来获取每月的每一天的事件?我正在寻找更好的表现。
感谢您的帮助!
编辑20/03/2013:
我感谢Dhruvik,使我的代码在iOS 5.X上可以完美运行,但在iOS 6.X上却不起作用(没有对4.X进行测试)。
我检查5.X和6.X版本的事件和日期,我看到的唯一区别是事件日历的时区属性:
iOS 5.X
timeZone = Europe/Paris (CET)
iOS 6.X
timeZone = Europe/Paris (UTC+01:00)
这个问题与全日 Activity 无关。
iOS 6.X是否有相同的问题?
最佳答案
这是感染事件的代码,该代码已在我的应用中实现。
在.h中
@property (nonatomic, retain) EKEventStore *eventStore;
@property (nonatomic, retain) EKCalendar *defaultCalendar;
@property (nonatomic, retain) NSMutableArray *eventsList;
在.m中
//This code will fecth the events from one day Before the current date..
- (void) fetchevents
{
eventStore = [[EKEventStore alloc] init];
eventsList = [[NSMutableArray alloc] init];
EKEventStore *store = [[EKEventStore alloc] init];
[store requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
// handle access here
}];
// Get the appropriate calendar
NSCalendar *calendar = [NSCalendar currentCalendar];
// Create the start date components
NSDateComponents *oneDayAgoComponents = [[NSDateComponents alloc] init];
oneDayAgoComponents.day = -1; // From which date you have to fetch Events from calander, as per your need subtract the days from current date
NSDate *oneDayAgo = [calendar dateByAddingComponents:oneDayAgoComponents
toDate:[NSDate date]
options:0];
NSLog(@"%@", oneDayAgo);
// Create the end date components
NSDateComponents *oneYearFromNowComponents = [[NSDateComponents alloc] init];
oneYearFromNowComponents.year = 0;
NSDate *oneYearFromNow = [calendar dateByAddingComponents:oneYearFromNowComponents
toDate:[NSDate date]
options:0];
NSLog(@"%@", oneYearFromNow);
//Create the predicate from the event store's instance method
NSPredicate *predicate = [store predicateForEventsWithStartDate:oneDayAgo endDate:oneYearFromNow calendars:nil];
NSArray *events_Array = [eventStore eventsMatchingPredicate: predicate];
for (EKEvent *eventToCheck in events_Array)
{
[eventsList addObject:eventToCheck.title ];
}
}
希望对您有所帮助。,祝您编程愉快..谢谢
关于iphone - 某些EKEvent与谓词不匹配,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/15512033/