Bird
0
0

How would you combine @Model with another Swift feature to create a model that automatically updates the UI when changed?

hard📝 Application Q9 of 15
iOS Swift - Local Data Persistence
How would you combine @Model with another Swift feature to create a model that automatically updates the UI when changed?
AUse @Model with @State in the model class
BUse @Model with @EnvironmentObject only
CUse @Model with @ViewBuilder in the model
DUse @Model with ObservableObject and @Published properties
Step-by-Step Solution
Solution:
  1. Step 1: Understand how to notify UI of changes

    ObservableObject with @Published properties triggers UI updates.
  2. Step 2: Combine with @Model for persistence

    @Model provides persistence; ObservableObject manages UI updates.
  3. Final Answer:

    Use @Model with ObservableObject and @Published properties -> Option D
  4. Quick Check:

    @Model + ObservableObject + @Published = auto UI update [OK]
Quick Trick: Combine @Model with ObservableObject and @Published for UI updates [OK]
Common Mistakes:
  • Using @State inside model classes
  • Confusing @ViewBuilder with data models
  • Relying only on @EnvironmentObject

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More iOS Swift Quizzes