SwiftUI iOS 27 - Smarter Toolbars, Overflow & Tab Bars

Topics covered include:

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• Making one tab prominent
• Keeping important actions visible with toolbar visibility priority
• Using relative priorities to control overflow order
• Creating data-driven toolbar items with ForEach
• Sending actions directly to a toolbar overflow menu
• Pinning an action to the trailing edge of the toolbar
• Minimizing navigation and tab bars while scrolling
• Adjusting custom toolbar content margins and shared backgrounds
• Hiding the status bar for all tabs or an individual tab
The key idea is to communicate interface hierarchy and intent to SwiftUI while letting the system manage the adaptive layout.