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How can you combine SwiftData with Swift Concurrency to fetch data asynchronously without blocking the UI?

hard📝 Application Q9 of 15
iOS Swift - Local Data Persistence
How can you combine SwiftData with Swift Concurrency to fetch data asynchronously without blocking the UI?
ACall fetchRequest() directly on the main thread synchronously.
BWrap fetchRequest() in DispatchQueue.main.async without await.
CUse <code>await context.perform { ... }</code> to run fetch inside a Task.
DUse @MainActor to run fetch synchronously.
Step-by-Step Solution
Solution:
  1. Step 1: Understand concurrency with SwiftData

    SwiftData context supports async operations via perform method to avoid blocking UI.
  2. Step 2: Use await with context.perform

    Running fetch inside await context.perform { ... } executes asynchronously on the context's queue.
  3. Final Answer:

    Use await context.perform { ... } to run fetch inside a Task. -> Option C
  4. Quick Check:

    Async fetch with await context.perform avoids UI blocking [OK]
Quick Trick: Use await context.perform for async SwiftData fetch [OK]
Common Mistakes:
  • Running fetch synchronously on main thread
  • Using DispatchQueue.main.async without await
  • Misusing @MainActor for async fetch

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