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📘 Core Data Mastery in SwiftUI

A visual reference guide for SwiftUI developers to master Core Data. The book covers fundamental concepts, practical examples, and advanced techniques for working with Core Data in SwiftUI applications.

Details

URL: 🔗 https://www.bigmountainstudio.com/core-data

Published: September 3, 2023

Authors: Mark Moeykens

Tags:
Core Data, SwiftUI, iOS Development, Data Persistence, Programming

Key Points​

  • Visual and practical reference guide for Core Data in SwiftUI
  • Detailed explanations of Core Data concepts and usage
  • Practical examples and step-by-step tutorials
  • Advanced topics like concurrency, performance, and CloudKit integration

Summary of Contents​

  • Core Data Concepts:
    • Introduction to Core Data and its main components
    • Explanation of data models, persistent containers, and managed object contexts
  • Setting Up Core Data:
    • Step-by-step guide to setting up a Core Data stack in SwiftUI
    • Creating data models, initializing persistent containers, and configuring managed object contexts
  • First Example:
    • A simple project to demonstrate the basics of Core Data integration in SwiftUI
    • Setting up the data model, persistent container, managed object context, and fetching and displaying data
  • Mock Data:
    • Techniques for using mock data in SwiftUI previews
    • Setting up temporary data stores and adding mock data for development and testing
  • Displaying Data:
    • Best practices for handling and displaying Core Data entities in SwiftUI
    • Handling optional values, formatting data, and extending entity classes for better UI integration
  • @FetchRequest:
    • Comprehensive guide to using the @FetchRequest property wrapper in SwiftUI
    • Sorting, filtering, and animating fetch requests
    • Creating and using pre-made fetch requests for more complex data operations
  • Advanced Topics:
    • Concurrency: Ensuring smooth UI performance while performing Core Data operations
    • Performance Tips: Measuring and improving Core Data performance in your apps
    • Undo and Redo: Implementing undo and redo functionalities in your applications
    • CloudKit: Integrating Core Data with CloudKit for data synchronization across multiple devices
  • Additional Features:
    • Composite Attributes: Grouping attributes together as a type in one or many entities
    • Derived Attributes: Autogenerating calculated values for attributes
    • Fetched Properties: Creating and storing pre-made fetches in your data model
    • Transformable Attributes: Storing types not directly supported by Core Data
    • Validation Rules: Specifying validation rules on the data model
    • Versioning: Managing data model changes to prevent data loss after app updates

Conclusion​

  • Recap of key Core Data concepts and techniques
  • Encouragement to explore advanced features and continuously improve your Core Data skills
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