[英]Failing to save EKReminder in iOS 6
我試圖從我的應用程序中保存/檢索提醒,但是由於某種原因,EKReminder似乎好像沒有保存。 這是我的代碼:
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,稍后,我嘗試驗證提醒是否已保存。 我通過使用以下代碼來做到這一點:
NSPredicate *predicate = [_eventStore predicateForRemindersInCalendars:nil];
[_eventStore fetchRemindersMatchingPredicate:predicate completion:^(NSArray *reminders) {
for (EKReminder *reminder in reminders) {
NSLog(@"Reminder Title: %@", reminder.title);
}
}];
而且我的新提醒永遠不會顯示!
誰能告訴我我在做什么錯?
如果授權狀態為EKAuthorizationStatusNotDetermined
則僅需要調用-requestAccessToEntityType:completion:
EKAuthorizationStatusNotDetermined
您可以使用+[EKEventStore authorizationStatusForEntityType:]
檢查授權狀態。
然后,僅在您首次調用-requestAccessToEntityType:completion
時才調用完成塊。 在Simulator上甚至不會調用一次,因為在Simulator上您的應用程序已經可以訪問。
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];
}
}
我通過將localSource切換為EKSourceTypeCalDAV來使其工作。 不能完全確定為什么要這樣做,也許有人可以對此有所了解?
希望這對您有用。
if([eventStore respondsToSelector:@selector(requestAccessToEntityType:completion:)])
{
// iOS 6 and later
// asks user to allow application to use his device calendar
[eventStore requestAccessToEntityType:EKEntityTypeReminder completion:^(BOOL granted, NSError *error)
{
if (granted)
{
EKReminder *reminder = [EKReminder reminderWithEventStore:eventStore];
reminder.title = aNotification;
reminder.calendar = [eventStore defaultCalendarForNewReminders];
NSDate *date = //aDate;
EKAlarm *alarm = [EKAlarm alarmWithAbsoluteDate:date];
[reminder addAlarm:alarm];
NSError *error = nil;
[eventStore saveReminder:reminder commit:YES error:&error];
if(error)
NSLog(@"unable to Reminder!: Error= %@", error);
}
}];
}
// iOS < 6
else
{
EKReminder *reminder = [EKReminder reminderWithEventStore:eventStore];
reminder.title = aNotification;
reminder.calendar = [eventStore defaultCalendarForNewReminders];
NSDate *date = //aDate;
EKAlarm *alarm = [EKAlarm alarmWithAbsoluteDate:date];
[reminder addAlarm:alarm];
NSError *error = nil;
[eventStore saveReminder:reminder commit:YES error:&error];
if(error)
NSLog(@"unable to Reminder!: Error= %@", error);
}
如果您無法將事件保存到設備日歷中,請查看我的這篇文章 。
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