Navigation in SwiftUI is the system that lets users move between different screens and sections of an app.
It helps apps:
move from one view to another
present content temporarily
organize screen flow
Core idea:
User Action → Navigation Trigger → Destination View
Navigation is important because apps need a way to show new content when the user interacts.
It is used to:
open detail screens
show temporary views
switch between main sections
guide the user through app flow
Examples:
tap a product → open product detail
tap a button → show a sheet
switch tab → change app section
select item in sidebar → update detail view
SwiftUI provides different navigation styles for different situations.
Common types:
NavigationStack
Sheet
FullScreenCover
TabView
Popover
Alert
ConfirmationDialog
NavigationSplitView