无法在iOS 6中保存EKReminder [英] Failing to save EKReminder in iOS 6

问题描述

我正在尝试从我的应用程序中保存/检索提醒，但是由于某种原因，EKReminder似乎没有被保存.这是我的代码:

I am trying to save/ retrieve reminders from my app, but for some reason the EKReminder seems as though it is not being saved. Here is my code:

EKEventStore * _eventStore = [[EKEventStore alloc] init];
[_eventStore requestAccessToEntityType:EKEntityTypeReminder completion:^(BOOL granted, NSError *error) {

    //create a new calendar for reminders.
    EKCalendar *calendar = [EKCalendar calendarForEntityType:EKEntityTypeReminder eventStore:_eventStore];
    EKSource *localSource = nil;
    for (EKSource *source in _eventStore.sources)
        if (source.sourceType == EKSourceTypeLocal)
        {
            localSource = source;
            break;
        }

    calendar.source = localSource;

    self.calendarIdentifier = calendar.calendarIdentifier;
    EKReminder *reminder = [EKReminder reminderWithEventStore:_eventStore];
    reminder.calendar = calendar;
    reminder.title = @"Test Reminder";
    reminder.startDateComponents = [[NSCalendar currentCalendar] components:NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];
    reminder.completionDate = [NSDate dateWithTimeIntervalSinceNow:100];

    EKAlarm *alarm = [EKAlarm alarmWithAbsoluteDate:[NSDate dateWithTimeIntervalSinceNow:100]];
    reminder.alarms = @[alarm];      

    NSError *errorOb = nil;
    BOOL saved = [_eventStore saveReminder:reminder commit:YES error:&errorOb];
    if (saved) NSLog(@"Saved Reminder");
    else NSLog(@"Failed to save reminder");

}];

然后，我试图验证该提醒是否确实已保存.我通过使用以下代码来做到这一点:

Then later on, I am trying to verify that the reminder has in fact been saved. I do that by using this code:

NSPredicate *predicate = [_eventStore predicateForRemindersInCalendars:nil];
[_eventStore fetchRemindersMatchingPredicate:predicate completion:^(NSArray *reminders) {
    for (EKReminder *reminder in reminders) {
        NSLog(@"Reminder Title: %@", reminder.title);
    }
}];

我的新提醒永远不会出现！

And my new reminder never shows up!

有人可以告诉我我在做什么错吗?

Can anyone tell me what I am doing wrong here??

推荐答案

如果授权状态为 EKAuthorizationStatusNotDetermined ，则只需调用 -requestAccessToEntityType:completion:.您可以使用 + [EKEventStoreauthorizationStatusForEntityType:] 检查授权状态.

You only need to call -requestAccessToEntityType:completion: if the authorization status is EKAuthorizationStatusNotDetermined. You can check the authorization status using +[EKEventStore authorizationStatusForEntityType:].

仅当您第一次调用 -requestAccessToEntityType:completion 时，才会调用完成块.在Simulator上甚至都不会被调用一次，因为在Simulator上，您的应用已经可以访问.

The completion block will then only be called the first time you call -requestAccessToEntityType:completion. On the Simulator it won't even be called once, because on the Simulator your app will already have access.

EKEventStore * _eventStore = [[EKEventStore alloc] init];
EKAuthorizationStatus authorizationStatus = [EKEventStore authorizationStatusForEntityType:EKEntityTypeReminder];
if (authorizationStatus == EKAuthorizationStatusNotDetermined) {
    [_eventStore requestAccessToEntityType:EKEntityTypeReminder completion:^(BOOL granted, NSError *error) {
        if (granted) {
            [self createNewReminder];
        } else {
            [self showNowAccessAlert];
        }
    }];
} else {
    if (authorizationStatus == EKAuthorizationStatusAuthorized) {
        [self createNewReminder];
    } else {
        [self showNowAccessAlert];
    }
}

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