Swift & SwiftUI

Before any UI, you must master the language itself — variables, types, and control flow.

Optionals are one of Swift's defining features — they prevent the nil crashes that break apps.

Swift is value-oriented at its core — knowing struct vs class shapes how you model your data.

SwiftUI is Apple's modern, declarative way to build interfaces — less code, more clarity.

Every SwiftUI screen is built from VStack, HStack, and ZStack — master them to arrange any layout.

In SwiftUI the UI reflects state — understand @State and @Binding to drive interactivity without manual updates.

Most apps are lists and detail screens — List and NavigationStack are the backbone of that.

Separating logic from UI keeps code cleaner and more testable — that's the heart of MVVM in SwiftUI.

Every real app fetches data — URLSession with async/await makes that clean and simple.

Data must survive after the app closes — SwiftData is Apple's modern solution for persistence.

Large apps do many things at once — Swift's concurrency model protects you from data races.

Small touches of motion and gestures are what make an app feel native and polished.

Good tests let you ship fast with confidence, and the new Swift Testing makes writing them pleasant.

The final and crucial step: getting your app to users through the App Store and its review.