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Expo UI Guidelines · lingxling | DecimalAI

frontendby lingxling

Expo UI Guidelines

lingxling/building-native-ui

Source lingxling/awesome-skills-cn ↗License MIT

Complete guide for building beautiful apps with Expo Router. Covers fundamentals, styling, components, navigation, animations, patterns, and native tabs.

SkillScore82Maintained

Automatic

Frontend / UI pack

Last verified 8/28/2026

What it changes

Passed 18 of 22 test cases with the skill, and 6 of 22 without it.

Without skill27%

With skill82%

Checks it passed that the model alone missed

Avoids importing sound APIs from expo-av.
Avoids importing video components from expo-av.
Configures borderCurve continuous on rounded corner cards.

and 17 more in the full report

12 fixed6 passed either way4 still failing0 broke

Pass-rate lift: +55 pp
Tokens: +78%
Agent turns: 0%
Response time: -17%

Model gemini-3.6-flashMeasured 8/28/2026v118 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/lingxling-building-native-ui/SKILL.md https://app.decimal.ai/s/lingxling-building-native-ui/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add lingxling-building-native-ui, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/lingxling-building-native-ui/ and pins it in .decimal/skills.lock

decimalai skills add lingxling-building-native-ui

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/lingxling-building-native-ui/SKILL.md https://app.decimal.ai/s/lingxling-building-native-ui/SKILL.md

Raw file: /s/lingxling-building-native-ui/SKILL.md ↗ · machine-readable summary at /s/lingxling-building-native-ui.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 12 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 12

Prompt

I have a vertical ScrollView containing list items. When I add padding to the ScrollView style directly (`style={{ padding: 16 }}`), the top and bottom content clips inside the scroll view boundary while scrolling. How should padding be applied to a scrollable list?

What was checked, without and with the skill
Checked	Without skill	With skill
Applies container padding to contentContainerStyle rather than main style prop on scroll views.	Passed	Passed
Uses flexbox gap for scrollable item separation to avoid edge clipping.	Missed	Passed

case-13 · gemini-3.6-flash · 8/28/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md324 linessingle file

Expo UI Guidelines

When to Use

You are building a native-feeling Expo Router application and need guidance on navigation, controls, effects, or platform-specific UI.
You need to decide whether Expo Go is sufficient or a custom native build is actually required.
The task involves modern Expo UI patterns across animations, tabs, headers, storage, media, or visual effects.

References

Consult these resources as needed:

references/
  animations.md          Reanimated: entering, exiting, layout, scroll-driven, gestures
  controls.md            Native iOS: Switch, Slider, SegmentedControl, DateTimePicker, Picker
  form-sheet.md          Form sheets in expo-router: configuration, footers and background interaction. 
  gradients.md           CSS gradients via experimental_backgroundImage (New Arch only)
  icons.md               SF Symbols via expo-image (sf: source), names, animations, weights
  media.md               Camera, audio, video, and file saving
  route-structure.md     Route conventions, dynamic routes, groups, folder organization
  search.md              Search bar with headers, useSearch hook, filtering patterns
  storage.md             SQLite, AsyncStorage, SecureStore
  tabs.md                NativeTabs, migration from JS tabs, iOS 26 features
  toolbar-and-headers.md Stack headers and toolbar buttons, menus, search (iOS only)
  visual-effects.md      Blur (expo-blur) and liquid glass (expo-glass-effect)
  webgpu-three.md        3D graphics, games, GPU visualizations with WebGPU and Three.js
  zoom-transitions.md    Apple Zoom: fluid zoom transitions with Link.AppleZoom (iOS 18+)

Running the App

CRITICAL: Always try Expo Go first before creating custom builds.

Most Expo apps work in Expo Go without any custom native code. Before running npx expo run:ios or npx expo run:android:

Start with Expo Go: Run npx expo start and scan the QR code with Expo Go
Check if features work: Test your app thoroughly in Expo Go
Only create custom builds when required - see below

When Custom Builds Are Required

Track record

Benchmark

18 / 22

test cases passed, vs 6 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

lingxling / awesome-skills-cn

antigravity-awesome-skills/plugins/antigravity-awesome-skills-claude/skills/building-native-ui/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1

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Ready to supercharge your AI agents?

See it in action

What's inside

Expo UI Guidelines

When to Use

References

Running the App

When Custom Builds Are Required

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

Related skills