Sharing App Data with Uniform Type Identifiers and ShareSheets Part 2
In part two of this series, we complete the workflow for sharing SwiftData content between different users of the same app.
We start by letting the user name their export file and present a UIKit-based share sheet from SwiftUI. Because the data is generated dynamically based on the user’s current selection, ShareLink is not an option, so we bridge to UIActivityViewController using UIViewControllerRepresentable.
From there, we handle the incoming BKLS file when the app is launched or brought to the foreground. Using onOpenURL, we decode the shared JSON, manage security-scoped resources, and import books, authors, and genres into SwiftData while preventing duplicates.
This video shows how to safely merge relational data from an external file, link models correctly, and support real-world sharing scenarios like AirDrop, Files, and Mail.
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Table of Contents:
0:00 Introduction
1:55 UIActivityViewController ShareSheet
5:52 ShareSheet Button
14:00 Handling Sharing Notification
16:43 Import Function
28:18 Testing Sharing
Starter Project Files: https://github.com/StewartLynch/MyBoo...
Completed Project: https://github.com/StewartLynch/MyBoo...
References mentioned in video:
SwiftUI ShareLinks
• ShareLink and ShareSheet in iOS 16
Recommended Resources:
Big Mountain Studio Books
AI Mastery in SwiftUI
https://www.bigmountainstudio.com/ai-...
SwiftUI Views Mastery
https://www.bigmountainstudio.com/adv...
Advanced SwiftUI Views Mastery
https://www.bigmountainstudio.com/adv...
SwiftUI Animations Mastery
https://www.bigmountainstudio.com/ani...
SwiftData Mastery in SwiftUI
https://www.bigmountainstudio.com/swi...
Combine Mastery in SwiftUI
https://www.bigmountainstudio.com/com...
SwiftUI 5 Book Bundle
https://www.bigmountainstudio.com/boo...