57 lines
2.3 KiB
Markdown
57 lines
2.3 KiB
Markdown
---
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name: expo-ui-swift-ui
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description: expo-ui-swift-ui
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risk: unknown
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source: community
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---
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---
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name: expo-ui-swift-ui
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description: `@expo/ui/swift-ui` package lets you use SwiftUI Views and modifiers in your app.
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---
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> The instructions in this skill apply to SDK 55 only. For other SDK versions, refer to the Expo UI SwiftUI docs for that version for the most accurate information.
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## When to Use
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- You need to build iOS-native UI in Expo using `@expo/ui/swift-ui`.
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- The task involves selecting SwiftUI views or modifiers, wrapping trees in `Host`, or embedding React Native components with `RNHostView`.
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- You are targeting Expo SDK 55 behavior for SwiftUI integration and extension guidance.
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## Installation
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```bash
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npx expo install @expo/ui
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```
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A native rebuild is required after installation (`npx expo run:ios`).
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## Instructions
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- Expo UI's API mirrors SwiftUI's API. Use SwiftUI knowledge to decide which components or modifiers to use.
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- Components are imported from `@expo/ui/swift-ui`, modifiers from `@expo/ui/swift-ui/modifiers`.
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- When about to use a component, fetch its docs to confirm the API - https://docs.expo.dev/versions/v55.0.0/sdk/ui/swift-ui/{component-name}/index.md
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- When unsure about a modifier's API, refer to the docs - https://docs.expo.dev/versions/v55.0.0/sdk/ui/swift-ui/modifiers/index.md
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- Every SwiftUI tree must be wrapped in `Host`.
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- `RNHostView` is specifically for embedding RN components inside a SwiftUI tree. Example:
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```jsx
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import { Host, VStack, RNHostView } from "@expo-ui/swift-ui";
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import { Pressable } from "react-native";
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<Host matchContents>
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<VStack>
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<RNHostView matchContents>
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// Here, `Pressable` is an RN component so it is wrapped in `RNHostView`.
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<Pressable />
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</RNHostView>
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</VStack>
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</Host>;
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```
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- If a required modifier or View is missing in Expo UI, it can be extended via a local Expo module. See: https://docs.expo.dev/guides/expo-ui-swift-ui/extending/index.md. Confirm with the user before extending.
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## Limitations
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- Use this skill only when the task clearly matches the scope described above.
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- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
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- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
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