LetsBuildThatApp - Ultimate SwiftUI Mock Interview AppStore

Ready to become a professional developer? After this course, you’ll be ready for any type of interview.

Prerequisites​

• Basic SwiftUI skills
• Understanding of networking

Versioning​

• Xcode 15.1
• Swift 5.9
• iOS 17.0

Mock Interview Intro​

1. Write a JSON parser that can consume the Appstore Search API and render a list of searchable objects.
   • Each result must be rendered similar to the AppStore rows with pixel perfect precision.
   • Tapping on a row will take you to the details screen for each app.
   • Tapping on a screenshot will present a fullscreen modal
   • There needs to be a delay on search when user is typing
2. Bonus 1: Fetch reviews for each app
3. Bonus 2: Implement horizontal snapping on screenshots and reviews
4. Bonus 3: Show differences between completion handlers and async/await. How do you use Continuations?
5. Bonus 4: Can you implement Image caching to reduce cost of loading images?

Course Topics​

• Rendering SwiftUI views with NavigationStack, ScrollView, Searchable, GeometryReader, AsyncImage, etc.
• Fetching JSON with Async/Await
• Decoding JSON with Codable Protocol
• ScrollView snapping with scrollTargetLayout and scrollTargetBehavior
• iOS 17 #Observable macro
• Transform old completion handlers into async await code with Continuations
• Image caching using NSCache and AsyncImage