Question

我有一个奇怪的问题EKEventStore，iCloud和本地日历。如果启用了iCloud，则会创建日历并将事件保存到日历中，如您所料。如果iCloud关闭并且您尝试保存事件没有任何反应，则设备会每隔3-5秒继续创建一个循环中的iCloud日历，直到iCloud重新打开，然后所有这些日历都会作为重复内容涌入iCloud。我正在使用几乎所有在这里引用的确切代码以及Apples Docs。我完全难以理解为什么它不起作用，而且一般来说EKEventStore上的文档似乎很少。

//••••••••••••••••••••••••••••••••••••••••••••• •• #pragma mark - 保存事件 //•••••••••••••••••••••••••••••••••••••••••••••••< / p>

-(void)saveEventWithDate:(NSDate *)startDate endDate:(NSDate *)endDate
{
    AppData *theData = [self theAppData];

    if([self checkIsDeviceVersionHigherThanRequiredVersion:@"6.0"]) {
        [eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) { // iOS 6 Support

            if (granted){
                NSLog(@"Access Granted");
            } else {
                NSLog(@"Access Not Granted");
            }

        }];
    }

    EKEvent *event  = [EKEvent eventWithEventStore:eventStore];

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

    if ([eventStore calendarWithIdentifier:[defaults objectForKey:@"My Calendar"]] != nil) // Calendar Existed
    {
        event.calendar  = [eventStore calendarWithIdentifier:[defaults objectForKey:@"My Calendar"]];
        NSLog(@"Calendar Existed");

    } else { // Create Calendar

        EKSource *theSource = nil;

        for (EKSource* src in eventStore.sources) {
            if ([src.title isEqualToString:@"iCloud"]) {
                theSource = src;
                break;
            }
            if (src.sourceType == EKSourceTypeLocal && theSource==nil) {
                theSource = src;
                break;
            }
        }

        [self setupCalendarWithSource:theSource withEvent:event];
    }

    NSLog(@"Type of Event:%@",typeOfEvent);

    if ([typeOfEvent isEqualToString:@"Hello"]) {
        event.title     = [NSString stringWithFormat:@"%@ Hello",[theData.hello_info objectForKey:@"customer_name"]];
        event.location  = [NSString stringWithFormat:@"Phone #%@",[theData.hello_info objectForKey:@"customer_phone_number"]];
        event.notes     = [NSString stringWithFormat:@"Hello Issue: %@",[theData.hello_info objectForKey:@"hello_issue"]];
        NSLog(@"Hello");
    }

    event.startDate = startDate;
    event.endDate   = endDate;
    event.allDay    = NO;
    EKAlarm *alarm = [EKAlarm alarmWithRelativeOffset:-1800]; // Half Hour Before
    event.alarms = [NSArray arrayWithObject:alarm];

    [eventStore saveEvent:event span:EKSpanThisEvent error:nil];

    SAFE_PERFORM_WITH_ARG(_delegate, @selector(wasScheduled), nil);
}

-(void)setupCalendarWithSource:(EKSource *)theSource withEvent:(EKEvent *)event {

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

    EKCalendar *cal;
    cal = [EKCalendar calendarWithEventStore:eventStore];
    cal.title = @"My Appointments";
    cal.source = theSource;
    [eventStore saveCalendar:cal commit:YES error:nil];
    NSLog(@"cal id = %@", cal.calendarIdentifier);
    NSString *calendar_id = cal.calendarIdentifier;
    [defaults setObject:calendar_id forKey:@"My Calendar"];
    event.calendar  = cal;
}

Answer 1

我不确定为什么会出现这种情况，但我认为由于禁用了iCloud这一事实，系统无法对其进行查询，然后在唤醒iCloud时解决已解决的队列创建请求（但我是假设）。

无论如何，我想到的第一个解决方案是以这种方式检查iCloud是否处于活动状态

EKSource *defaultSource = [eventStore defaultCalendarForNewEvents].source;

if (defaultSource.sourceType == EKSourceTypeCalDAV)
    NSLog(@"iCloud Enable");
else
    NSLog(@"iCloud Disable");

这样做可以将您的事件正确保存到默认来源，然后让2个日历（本地日历和云日历）保持同步......

仍会提示重新激活iCloud以添加所有本地日历。

另见这里的第二个答案Accessing programmatically created calendar on iOS device（我得到了这个想法;）

我希望我能提供帮助。

编辑：可能没有必要创建第二个日历...尝试将日历源从EKSourceTypeCalDAV更改为EKSourceTypeLocal ...不要忘记使用提交“是”保存日历

EDIT2：好的，刚刚测试过......

代替：

} else { // Create Calendar

    EKSource *theSource = nil;

    for (EKSource* src in eventStore.sources) {
        if ([src.title isEqualToString:@"iCloud"]) {
            theSource = src;
            break;
        }
        if (src.sourceType == EKSourceTypeLocal && theSource==nil) {
            theSource = src;
            break;
        }
    }

    [self setupCalendarWithSource:theSource withEvent:event];
}

有了......

} else { // Create Calendar

    EKSource *theSource = [eventStore defaultCalendarForNewEvents].source;

    [self setupCalendarWithSource:theSource withEvent:event];
}

这样你就可以在正确的源中创建日历（如果用户停用iCloud和CalDAV，则为本地日历）

然后：

1）当用户选择停用iCloud时，应在iphone上留下日历（而不是删除），以便在本地源中拥有云日历

2）当用户选择激活时，iCloud会将他的本地日历与云合并，然后你去！

我希望这个帮助

Answer 2

如果您希望以防弹方式查找iCloud日历并在禁用iCloud时恢复为本地日历，请使用以下代码。我已经提供了一些可能有用的评论：

for (EKSource *source in eventStore.sources) {  //Check for iCloud
    if (source.sourceType == EKSourceTypeCalDAV && [source.title isEqualToString:@"iCloud"]) {

        NSLog(@"Found iCloud Service.");  //Found iCloud

        if([source calendarsForEntityType:EKEntityTypeEvent].count>0){     //Check to see if Calendar is enabled on iCloud

            NSLog(@"iCloud Calendar is Enabled."); //Calendar is Enabled

            if([self saveEventCalendarWithSource:source]){
                return YES;
            }

        }else{

            NSLog(@"iCloud Calendar is Disabled."); //Calendar is Disabled

        }
    }
}


//If we are here it means that we did not find iCloud Source with iCloud Name. Now trying any CalDAV type to see if we can find it

for (EKSource *source in self.reminderStore.sources) {  //Check for iCloud
    if (source.sourceType == EKSourceTypeCalDAV) {

        [self logData:@"Trying to save calendar in EKSourceTypeCalDAV Service."];

        if([self saveEventCalendarWithSource:source]){
            return YES;
        }

    }
}

//If we are here it means that we did not find iCloud and that means iCloud is not turned on. Use Local service now.

for (EKSource *source in self.reminderStore.sources) {  //Look for Local Source
    if (source.sourceType == EKSourceTypeLocal){  //Found Local Source
        NSLog(@"Found Local Source.");

        if([self saveEventCalendarWithSource:source]){
            return YES;
        }

    }
}

以下是保存日历的代码：

- (Boolean) saveEventCalendarWithSource:(EKSource *)source{

EKCalendar *Calendar = nil;

MyCalendar = [EKCalendar calendarForEntityType:EKEntityTypeEvent eventStore:eventStore];

MyCalendar.title = @"XXX";
MyCalendar.CGColor = [UIColor blueColor].CGColor;

MyCalendar.source = source;

NSError *err;
if([eventStore saveCalendar:MyCalendar commit:YES error:&err]){

    if(MyCalendar.calendarIdentifier == nil){

        NSLog(@"Could not save Calendar: %@",err);

        return FALSE;
    }

    NSLog(@"Calendar Created. Here's the identifier %@",[MyCalendar calendarIdentifier]);

    return TRUE;
}

NSLog(@"Could not create calendar! Reason:%@",err.description);

return FALSE;

}

Answer 3

你的帖子是一个很大的帮助，我正在努力克服完全相同的错误。谢谢！

我只做了一些小修改，因为使用defaultCalendarForNewEvents源的解决方案并不适用于所有情况：某些源代码不允许您在其中创建新日历。

我只是检查我的icloud源中的日历数量。如果计数为零，则日历同步关闭，我采用本地来源：

EKSource* localSource = nil;
EKSource* iCloudSource = nil;
for (EKSource* source in _eventStore.sources){
    if (source.sourceType == EKSourceTypeLocal){
        localSource = source;
    }else if(source.sourceType == EKSourceTypeCalDAV && [source.title isEqualToString:@"iCloud"]){
        iCloudSource = source;
    }
}

if (iCloudSource && [iCloudSource.calendars count] != 0) {
    calendar.source = iCloudSource;
}else{
    calendar.source = localSource;
}

iOS EKEvent Store在循环中重新创建iCloud日历，不会保存本地。

3 个答案: