iOS: Passing Array of Core Data entities from Obj-C to Swift

Question

I have an Objective-C viewcontroller and within it I am trying to pass an array of core data entities (GroupToCustRelation) to a property of a Swift file.

In my Swift file I tried to do this:

var arrCustomers:[GroupToCustRelation] = []

I get a use of undeclared type error. Just starting on Swift so any help would be appreciated. How do I declare an empty array that is expecting Core Data entities?

anon · Accepted Answer · 2017-05-31 19:11:09Z

1

Your core data model classes are probably Objective-C then. To make them available to your Swift code you need to import those headers in your Swift Bridging Header. It should be called [TargetName]-Bridging-Header.h. If you didn’t let Xcode create this file when you first added Swift code to your project you can manually create such a header and enter it’s name in your targets build setting Objective-C Bridging Header which you will find in the Swift Compiler - General section.

answered May 31, 2017 at 19:11

anon

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1 Comment

PruitIgoe Over a year ago

ah, duh. I had just sent an email explaining how to expose Obj-C to Swiss to my co-workers...thanks!

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