SwiftUI

How PreferenceKey lets child views communicate information back up the view tree.

Build predictable, data-driven navigation flows in SwiftUI.

When to own an observable object and when to observe one.

Let SwiftUI pick the first layout that fits available space.

Build coherent transitions by composing animation intent.

Move focus deliberately through forms and keyboard-driven flows.

Build richer staged motion without scattering animation logic everywhere.

Use content margins to make layouts feel more intentional across devices.

Make scroll interactions feel intentional with better snapping and targeting.

Preserve small pieces of scene-specific state without overbuilding persistence.

Understand when to respect, ignore, or extend into the safe area.

Reach for alignment guides when stacks stop being expressive enough.

Use haptics and sensory feedback with enough restraint to feel premium.

Keep toolbar configuration close to feature intent rather than scattering it through views.

Pass shared context through view hierarchies without turning everything into prop drilling.

Use redaction and loading placeholders without making the interface feel dead.