Module 3 of 3 in Sharing & State Management in SwiftUI

Data Persistence in SwiftUI

Jun 20 2024, Swift 5.9, iOS 17.2, Xcode 15.1
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This module explores the fundamental principles of persistent data storage in SwiftUI-based iOS applications, guiding participants in creating seamless user experiences. Covering diverse data persistence techniques, it equips learners with the skills to enhance iOS applications by effectively managing and utilizing data. By Mina H. Gerges.

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EXPERIENCE
Beginner level
EST TIME TO COMPLETE
40 mins
CONTENT
3 lessons
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Module outcomes

  • Store and access data with UserDefaults
  • Persist data in JSON format
  • Persist data using SwiftData

Covered concepts

  • UserDefaults
  • JSON-based data persistence
  • SwiftData

Module content

1
Storing Data with UserDefaults Lesson (12 mins)

Learn the basics of UserDefaults and how to use them to preserve data in two different ways with SwiftUI. Finally, learn the limitations of UserDefaults.

 Start
Introduction • Start Reading · 1 min
Instruction Reading · 5 mins
Demo Video · 5 mins
Conclusion Reading · 1 min
Lesson 1 Quiz 4 questions
2
Persisting Data in JSON Format Lesson (14 mins)

Learn what App Sandbox means and how to access it on Mac. Then learn what JSON means and how to encode/decode models into JSON. Finally, learn how to save and read JSON files from the App Sandbox.

 Start
Introduction • Start Reading · 1 min
Instruction Reading · 7 mins
Demo Video · 5 mins
Conclusion Reading · 1 min
Lesson 2 Quiz 4 questions
3
Persisting Data with SwiftData Lesson (14 mins)

Learn the basics of SwiftData to preserve models, starting with configuring the model storage and turning classes into models. Learn the process of fetching, adding, editing, and deleting instances from a SwiftData model.

 Start
Introduction • Start Reading · 1 min
Instruction Reading · 6 mins
Demo Video · 6 mins
Conclusion Reading · 1 min
Lesson 3 Quiz 4 questions