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How to Open Different Screens From the First Screen in SwiftUI
Navigation is one of the first real challenges SwiftUI developers face. You've built a starting screen — maybe a home view, a login page, or a dashboard — and now you need to move users to other parts of your app. SwiftUI gives you several tools to do this, and choosing the right one depends on how your app is structured and what kind of experience you're building.
Understanding SwiftUI's Navigation Model
SwiftUI uses a declarative navigation system, meaning you describe what should happen rather than writing imperative commands like "push this view controller." This is a shift from UIKit, and it affects how you think about screen transitions.
At its core, navigation in SwiftUI is driven by state. When a state value changes, the UI reacts — including which screen is visible. This means your navigation logic lives in your data, not scattered across view controllers.
The Main Methods for Moving Between Screens
1. NavigationStack (iOS 16+)
NavigationStack is the modern, recommended approach for stack-based navigation — the kind where users drill down into detail screens and tap a back button to return.