Reviewed-on: #27 Co-authored-by: vickydotbat <vickydotbat@tutamail.com> Co-committed-by: vickydotbat <vickydotbat@tutamail.com>
3.0 KiB
3.0 KiB
iOS platform
For native iOS / iPadOS apps: SwiftUI, UIKit, React Native, Expo, Flutter shipping to Apple hardware.
On native, register narrows. HIG conformance governs structure, navigation, and interaction whatever the register; brand expresses through the expressive layer the platform provides (tint, type, motion, content). Calm, Duolingo, and Spotify carry strong identity entirely inside HIG conventions.
The iOS slop test
Would a fluent iPhone user trust this app, or pause at off-spec controls? The tell is "ported from a website": reinvented navigation bars, custom back gestures, web-shaped buttons, hover-dependent affordances. Default to the platform's components; depart only for a reason the user would thank you for.
Layout & structure
- Safe area. Lay out inside the safe-area insets. No controls under the notch, Dynamic Island, home indicator, or rounded corners.
- System navigation. Tab bar for 2–5 top-level sections (sections, never actions), navigation stack for hierarchy, sheet for self-contained tasks. No custom global nav, no mixed metaphors.
- Edge-swipe back stays alive. The left-edge back gesture is muscle memory; never disable or overlay it.
- Large titles on top-level screens, collapsing to inline on scroll. Deep detail screens stay inline.
Touch targets
- 44×44 pt minimum for every tappable control, with breathing room between adjacent targets.
Typography
- Dynamic Type. Use the system text styles (Large Title through Caption) so text follows the user's reading size. No hard-coded point sizes.
- San Francisco carries the UI. Body, labels, and controls stay on SF Pro / SF Compact; a brand face may appear in display moments.
- 11 pt floor; Body is 17 pt.
Color & materials
- Semantic system colors (label, secondaryLabel, systemBackground, separator, tint). They adapt to Dark Mode and increased contrast automatically; raw hex breaks there.
- Dark Mode is a first-class appearance. Design and test both.
- One tint color drives interactive elements; decoration is not its job.
- System materials for blur and translucency behind bars and sheets; no hand-rolled glassmorphism.
Components & controls
- Platform controls. Switch, segmented control, stepper, system pickers, action sheets, alerts, context menus, swipe actions. Reinventing these for flavor is the most common native slop.
- SF Symbols for iconography: baseline-aligned, Dynamic Type-aware, weight and scale variants. Don't mix in a web icon set.
- Deliberate modality. Sheet for a focused dismissible sub-task, full-screen cover for immersion. Clear Cancel/Done; honor swipe-to-dismiss unless data loss requires a guard.
- Grouped/inset lists for settings-shaped content; no bespoke card stacks.
Motion
- System transitions. Push slides, sheets rise, dismiss reverses the entrance. Custom transitions that fight the navigation model disorient.
- Honor Reduce Motion. Crossfade instead of parallax and large slides.