what can i do with swift data
Asked on 08/18/2024
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With Swift Data, you can efficiently build and manage your app's model layer, providing persistence across app launches. Here are some key capabilities of Swift Data:
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Modeling and Persistence: Swift Data allows you to define your app's data models using a simple syntax with the model macro. It supports persistence, schema migration, and graph management.
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Custom Data Stores: You can configure Swift Data to use custom data stores, allowing you to store data using backends like SQLite, remote web services, or JSON files. This flexibility is achieved through the new datastore protocol.
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Indexing and Unique Constraints: Swift Data introduces the index macro to make queries more efficient by indexing frequently queried properties. The unique macro ensures that certain properties have no duplicate entries.
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History Tracking: Swift Data provides access to the history of changes in a datastore, which is useful for tracking local changes that need to be synced to a remote service.
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Integration with SwiftUI: Swift Data integrates seamlessly with SwiftUI, allowing you to populate views with data fetched from the model container using queries.
For more detailed information, you can refer to the session What’s new in SwiftData (00:57) which covers adopting Swift Data, customizing schemas, and optimizing queries.
What’s new in SwiftData
SwiftData makes it easy to add persistence to your app with its expressive, declarative API. Learn about refinements to SwiftData, including compound uniqueness constraints, faster queries with #Index, queries in Xcode previews, and rich predicate expressions. Join us to explore how you can use all of these features to express richer models and improve performance in your app. To discover how to build a custom data store or use the history API in SwiftData, watch “Create a custom data store with SwiftData” and “Track model changes with SwiftData history”.
Swift Charts: Vectorized and function plots
The plot thickens! Learn how to render beautiful charts representing math functions and extensive datasets using function and vectorized plots in your app. Whether you’re looking to display functions common in aerodynamics, magnetism, and higher order field theory, or create large interactive heat maps, Swift Charts has you covered.
Create a custom data store with SwiftData
Combine the power of SwiftData’s expressive, declarative modeling API with your own persistence backend. Learn how to build a custom data store and explore how to progressively add persistence features in your app. To get the most out of this session, watch “Meet SwiftData” and “Model your schema with SwiftData” from WWDC23.