我有一个应用程序可以通过按钮提醒患者他/她的预约。 如果患者单击按钮,我想获取患者日历中的所有事件以检查约会是否已经存在。如果不存在,我将创建事件。
我知道如何将事件添加到日历中,但获取的结果是返回零计数??
下面是我的代码:
//set start and end date
NSDate* startDate = [NSDate date];//start from today
NSDate* endDate = [NSDate dateWithTimeIntervalSinceNow:[[NSDate distantFuture] timeIntervalSinceReferenceDate]];//no end
NSLog(@"S Date %@", startDate);
NSLog(@"E Date %@", endDate);
NSString *AppointmentTitle=@"Appointment in Hospital at Pediatric Clinic";
EKEventStore *store = [[EKEventStore alloc] init];
NSArray *calendarArray = [store calendars];
NSPredicate *fetchCalendarEvents = [store predicateForEventsWithStartDate:startDate endDate:endDate calendars:calendarArray];
NSArray *eventList = [store eventsMatchingPredicate:fetchCalendarEvents];
BOOL IsFound;
int EventsCount=eventList.count;
for(int i=0; i < EventsCount; i++)
{
NSLog(@"Event Title:%@", [[eventList objectAtIndex:i] title]);
if ([[[eventList objectAtIndex:i] title] isEqualToString:AppointmentTitle])//check title
{
IsFound=TRUE;
break;
}
else
{
IsFound=FALSE;
}
}
此代码在 2 个月前运行良好。突然,当我回来测试它时,它没有用。我错过了什么?或者我的代码有什么错误吗?
我需要你的帮助......
最佳答案
最终我得到了答案, 我认为 Apple 做了一些允许的事情 ( 在 iOS 5 中,您只能访问事件存储中的事件 (EKEntityTypeEvent),而在 iOS 6 中您可以访问提醒 (EKEntityTypeReminder)。但是您需要以下代码才能至少获得 1 次授权。 ) “由 WrightsCS 回答”
找到下面的代码:-
EKEventStore *store = [[EKEventStore alloc] init];
// Get the appropriate calendar
NSCalendar *calendar = [NSCalendar currentCalendar];
if ([store respondsToSelector:@selector(requestAccessToEntityType:completion:)])
{
/* iOS Settings > Privacy > Calendars > MY APP > ENABLE | DISABLE */
[store requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error)
{
if ( granted )
{
NSLog(@"User has granted permission!");
// Create the start date components
NSDateComponents *oneDayAgoComponents = [[NSDateComponents alloc] init];
oneDayAgoComponents.day = -1;
NSDate *oneDayAgo = [calendar dateByAddingComponents:oneDayAgoComponents
toDate:[NSDate date]
options:0];
// Create the end date components
NSDateComponents *oneYearFromNowComponents = [[NSDateComponents alloc] init];
oneYearFromNowComponents.year = 1;
NSDate *oneYearFromNow = [calendar dateByAddingComponents:oneYearFromNowComponents
toDate:[NSDate date]
options:0];
// Create the predicate from the event store's instance method
NSPredicate *predicate = [store predicateForEventsWithStartDate:oneDayAgo
endDate:oneYearFromNow
calendars:nil];
// Fetch all events that match the predicate
NSArray *events = [store eventsMatchingPredicate:predicate];
NSLog(@"The content of array is%@",events);
}
else
{
NSLog(@"User has not granted permission!");
}
}];
}
关于objective-c - 使用开始日期获取 iPhone 日历中的所有事件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/15909776/