![]() I’m going on holiday for a couple of weeks, therefore I’ll publish the next article at the end of August. The system asks you if you want to activate the. Just call it Share or whatever name you prefer. I’ll write another article-and probably the last one-about Core Data where I’ll show how to mock it for the unit test. Discover how Core Data is adopting the new concurrency capabilities of Swift 5.5, leading to more concise, efficient, and safe asynchronous code. Go into the project section, click on the + button and select the Share extension from the list. Go into the project section, click on the + button and select the Share extension from the list. To implement the fetched results controller, lets create an instance of NSFetchedResultsController, on the ViewController.swift file. I hope these articles are useful for all of you who are using or want to use Core Data in own applications. That’s all for the notifications of Core Data. Have a look at CoreDataStorage for more details. To take advantage of this approach, we must have a class which contains our Core Data stack and which observers the notifications. To share data we need to create a shared container between the main app and its extensions. ![]() For example, if we create a new object like this:įunc observerSelector ( _ notification : Notification ) Setting up the Persistent Container for data sharing. Once we perform a CRUD operation, we’ll receive this notification. ![]() We don’t need to save the changes in the context to receive this notification. Let’s see what notifications we can observer and how to use them: NSManagedObjectContextObjectsDidChangeĬoreData sends this notification when we perform any CRUD operations with a NSManagedObject. In this article, we’ll see how to use the notifications provided by Core Data.Ĭore data provides the possibility to observer different notifications which we receive when something changes in our Core Data environment. Then, I thought to share with the community my knowledge because I think it’s very important to know how to take advantage of all the Core Data features. I wanted to study this framework well to publish a new open source library, StorageKit. IntroductionĪs you may have noticed, I’ve written several articles about Core Data recently. After the series about CRUD operations, now it’s time to unveil the last Core Data beast: Notifications.
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