Question

How can I add a Calendar (not an event) to a EKEventStore in iOS 5?

Answer 1

I caught an exception unless I also did:

// Get the calendar source
EKSource* localSource;
for (EKSource* source in eventStore.sources) {
    if (source.sourceType == EKSourceTypeLocal)
    {
        localSource = source;
        break;
    }
}

if (!localSource)
    return;

calendar = [EKCalendar calendarWithEventStore:eventStore];
calendar.source = localSource;

Naturally, take a look at the other EKSourceType enums to see which one is appropriate for your needs.