SwiftUI Navigation and Lists

This unit covers SwiftUI container and navigation views—Picker, List, NavigationView, NavigationLink, Section, and TabView—teaching students how to build multi‑screen, selectable interfaces with state binding and accessibility in mind. It builds on foundational SwiftUI concepts from earlier units and prepares students to integrate data flow and persistence in the following unit.

Learning Objectives

• Analyze the roles and appropriate use-cases for Picker, List, Section, NavigationView, NavigationLink, and TabView by comparing at least two app scenarios and selecting the optimal component set for each.
• Apply SwiftUI syntax and state-binding to implement a functioning prototype that includes a Picker, a Sectioned List, navigation between views using NavigationView and NavigationLink, and a multi-tab interface using TabView.
• Demonstrate accessibility and UI best practices for lists, pickers, and navigation elements by annotating or updating a sample app to support labels, dynamic type, and VoiceOver behavior.
• Evaluate navigation flow and data presentation choices by testing the prototype and documenting at least three usability or performance improvements (e.g., grouping with Section, lazy loading strategies, or tab organization) with rationale.