Expo UI SwiftUI

You can use SwiftUI components in a React Native Expo app by installing the @expo/ui package, importing SwiftUI components from @expo/ui/swift-ui, and wrapping your view trees in the Host component. This maps SwiftUI APIs directly into your React Native interface.

Yes, you can embed React Native components inside a SwiftUI view tree by using the RNHostView component. This cross-runtime embedding allows you to mix React Native ecosystems within your native SwiftUI structures when necessary.

Building SwiftUI interfaces in Expo requires SDK 55 or later. The SwiftUI component mapping and modifier APIs are designed for Expo SDK 55 projects, so you must ensure your environment is updated to avoid API mismatches.

To set up Expo UI SwiftUI, run npx expo install @expo/ui to add the package, then rebuild your application. After installation, import Host and SwiftUI components from @expo/ui/swift-ui to begin composing SwiftUI view trees.

SwiftUI modifiers may not apply correctly if you are not using Expo SDK 55 or if the @expo/ui package is missing. Ensure you have installed the package correctly and are referencing the documentation-driven APIs for SDK 55 to prevent modifier mismatches.

You should use RNHostView instead of standard SwiftUI components when you need to embed existing React Native components within a SwiftUI view tree. This is necessary for mixing ecosystems while maintaining the native SwiftUI structure around your React Native elements.