We close out our tour of the Sharing library by showing how easy it is to test code that uses the @Shared property wrapper without worrying about values bleeding between tests and the simulator. And we’ll take the “in-memory” shared key for a spin by building one final feature.

@Shared is far more than a glorified version of @AppStorage: it can be customized with additional persistence strategies, including the file storage strategy that comes with the library, which persists far more complex data than user defaults. We will create a complex, new feature that is powered by the file system.

We show how the @Shared property wrapper, unlike @AppStorage, can be used anywhere, not just SwiftUI views. And we show how @Shared has some extra bells and whistles that make it easier to write maintainable Xcode previews and avoid potential bugs around “string-ly” typed keys and default values.

We celebrate 7 years with a live stream! We discuss some recent updates around our popular Sharing library; open source SharingGRDB live, which is a new lightweight alternative to SwiftData that is powered by Sharing and GRDB; and we give a sneak peek of an upcoming series and library.

We are now driving several features using SQLite using a simple property wrapper that offers the same ergonomics as Swift Data’s @Query macro, and automatically keeps the view in sync with the database. Let’s add one more feature to leverage dynamic queries by allowing the user to change how the data is sorted.

Let’s leverage our new @Shared SQLite strategy by adding a brand new feature: archiving. We will see how easy it is to incorporate queries directly into a SwiftUI view, and we will expand our tools to support even more kinds of queries.