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Apple App-Development-with-Swift-Certified-User Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Swift Programming Language | - Use functions
|
| View Building with SwiftUI | - Create a multi-view app with navigation Stacks, Links, and/or Sheets - Extract Subviews to simplify the structure of an overlarge View - Use @State, @Binding, @Environment, and/or Observable to share data between Views - Create multiple Views to implement app logic - Position and/or layout a single SwiftUI View with standard Views and modifiers - Use List Views to iterate through collections |
| Xcode Developer Tools | - Demonstrate how to build and run an app
|
Apple App Development with Swift Certified User Sample Questions:
1. If View A calls View B, which Swift Property Wrapper would you use in View B in order to return the value of a state to View A?
A) @State
B) @Environment
C) @Binding
D) @Observable
2. Review the code snippet.
The code snippet does not compile.
Which two actions will fix the errors? (Choose 2.)
A) Chang the type of unitPrice from Double to Int.
B) Change totalCost from let to var to make it mutable.
C) Change shipping from let to var to make it mutable.
D) Change the initial value of totalCost from o to 0.0.
E) Change the type of quantity from int to Double .
3. You have a set of Views within a ZStack that produce the screen below:
Arrange the lines of code that will make up the ZSlack so that the View appears as shown.
4. Review the code:
Given a struct called Animal, what line of code should be added on line 5 in order to produce the output shown?
A) Text(animal.name)
B) Text(Animals[animal].name)
C) Text(animals[animal].name)
D) Text(Animal.name)
5. Which two statements about building an app are true? (Choose 2.)
A) You need a paid Apple Developer account in order to run your app on your phone.
B) You can run an app on your phone and get debug information in Xcode.
C) You can preview a View in the Canvas without running your app.
D) Your phone must always be physically attached to your Mac to run your apps from Xcode on it.
E) You can run your app in the simulator with Generic iOS Device chosen.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: B,E | Question # 3 Answer: Only visible for members | Question # 4 Answer: A | Question # 5 Answer: B,C |
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