[swift-users] defaultCalendarForNewEvents is defined as optional however can't use optional binding to check if it's nil

[Jordan Rose]

Nothing specific. A lot of minor issues were corrected in the Xcode 9 release with a nod towards maintaining source compatibility, and most of them weren't release-noted.

Jordan


> On Jan 10, 2018, at 10:21, Filiz Kurban <filiz.kurban at gmail.com> wrote:
> 
> Thanks for your response. I will check that now! In the meantime, is there a release note that states this? I have a stackover flow question on this and would love to resolve it.
> 
> On Wed, Jan 10, 2018 at 10:13 AM, Jordan Rose via swift-users <swift-users at swift.org <mailto:swift-users at swift.org>> wrote:
> Hi, Filiz. Are you sure you're using Swift 4 and not the Swift 3 compatibility mode? 'defaultCalendarForNewEvents' was marked non-optional in Swift 3 by accident and that was fixed in Swift 4.
> 
> Jordan
> 
> 
>> On Jan 10, 2018, at 08:59, Filiz Kurban via swift-users <swift-users at swift.org <mailto:swift-users at swift.org>> wrote:
>> 
>> Hello,
>> 
>> I'm adding a new functionality in my app, which is the ability to add an event in the default calendar set up on the phone. In the implementation, I get the permission and am ready to add the event. I check to see if there is an actual default calendar through the use of optional binding, but I get the error:
>> 
>> Initializer for conditional binding must have Optional type, not 'EKCalendar'
>> 
>> Now, defaultCalendarForNewEvents is an Optional (see declaration below) and it should be perfectly fine to use optional binding to check if it's nil or not. What am I missing?
>> 
>> defaultCalendarForNewEvents definition in EKEventStore.h:
>> 
>> open var defaultCalendarForNewEvents: EKCalendar? { get }
>> 
>> I'm using Swift 4 on iOS11.2
>> 
>> if let defaultCalendar = eventStore.defaultCalendarForNewEvents { <-- error line
>>     newEvent.title = "Some Event Name"
>>     newEvent.startDate = Date()
>>     newEvent.endDate = Date()
>> }
>> 
>> Thank you for your help in advance.
>> 
>> 
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> 
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