How to preview SwiftData in XCode Previews

Three flowers that represents SwiftUI, SwiftData and XCode side by side with the text “Preview SwiftData” beneath it.

A SwiftUI guide for previewing SwiftData actions and data in XCode Previews.

The code for the demonstrations detailed on this post can be found at the tutorials/swiftdata/101 branch within the repository below.

If you wish to learn more about the code that we provided for these demonstrations, consult the guide below.

Preview Actions

A screenshot of the code for the sample screen highlighting how we previewed the SwiftData by passing a .modelContainer to the preview.

To preview actions such as inserting or deleting items, add a .modelContainer(for: SWIFT_MODEL_NAME.self) to your XCode Preview.

Preview Data

A screenshot of the code for the SwiftDataListRow view. Highlighted is how we created a mock SwiftData model container and item for the Swift Preview to demonstrate how data would be created.

To preview data, you must create a mock container that holds mock data and pass the mock data to the SwiftUI View preview.

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How to preview SwiftData in XCode Previews

A SwiftUI guide for previewing SwiftData actions and data in XCode Previews.

Preview Actions

Preview Data

Looking to learn more about SwiftUI, Swift, SwiftData, Design and Technology?

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