Drag and drop calendar item

Question

Created Jun ’17

Replies 2

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Hello!

I have the flight tracking app and I want to integrate Drag and Drop so the user can drag the flight to Calendar app and create the event / reminder.

I've tried to use `public.calendar-event` as an identifier along with data string according to iCal format (VCALENDAR / VEVENT etc) but the standard Calendar app doesn't seem to accept it.

I've tried to drag the event from Calendar app and figured out that it declares the following providers:

"com.apple.eventkit.internal",

"com.apple.calendar.ics",

"com.apple.ical.ics",

"com.apple.uikit.useractivity",

"public.utf8-plain-text",

"public.utf16-plain-text"

Seems like

"com.apple.calendar.ics"

"com.apple.ical.ics"

exporting iCal formatted data with event details.

I've then tried to create NSItemProvider with there identifiers and drag-drop the data to Calendar but it doesn't seem to accept it.

Is it possible to drag-drop data to Calendar app in order to create event? If so, what UTI should be used and what data should be included in NSItemProvider.

Thanks in advance.

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Answer 1

bpapaattheskimm OP

Jul ’17

Any luck with this? Trying the same thing too... I have a Table View and I'm vending an Item provider array containing this:

NSItemProvider *itemProvider = [[NSItemProvider alloc] initWithItem:nil typeIdentifier:(NSString*)kUTTypeCalendarEvent];

Interesting to note... in the Simulator, if I create a Reminder in the Reminders app and then drag it into the Calendar app, the Calendar app crashes and on relaunch I see the Reminder was not added to the Calendar.

0

Answer 2

dilts OP

Aug ’17

I've been playing around with Drag & Drop for a few days too and managed to figure this out.

Make sure your custom object conforms to NSItemProviderWriting;
The writableTypeIdentifiersForItemProvider array should contain the
```
"com.apple.ical.ics"
```
type identifier;
Make a helper method to create a iCalendar vEvent string from your custom object;
Return that string as utf8 encoded Data in the loadData(withTypeIdentifier: forItemProviderCompletionHandler:) function when
```
"com.apple.ical.ics"
```
is requested.

Checkout Session 227 from WWDC 2017 where they do something similar in creating a vCard string from a custom contact object.

I've also made a more detailed answer here, with a step-by-step of how to get it to work and additional resources.

I hope you find this helpful! 🙂

1