expo-router

---
name: expo-router
description: Navigation and routing for Expo Router. Covers file-based routes, groups and dynamic routes, folder organization, Link with previews and context menus, native Stack, page titles, modals and form sheets, NativeTabs, headers and toolbars, and header search bars.
version: 1.0.1
license: MIT
---

# Expo Router Navigation

Navigation and routing for Expo Router apps. For screen styling, colors, controls, media, and visual effects, use the `expo-native-ui` skill; for motion and gestures, use `expo-animation`.

## References

Consult these resources as needed:

```
references/
  route-structure.md     Route conventions, dynamic routes, groups, folder organization
  tabs.md                NativeTabs, migration from JS tabs, iOS 26 features
  toolbar-and-headers.md Stack headers and toolbar buttons, menus, search (iOS only)
  form-sheet.md          Form sheets in expo-router: configuration, footers and background interaction.
  search.md              Search bar with headers, useSearch hook, filtering patterns
  zoom-transitions.md    Apple Zoom: fluid zoom transitions with Link.AppleZoom (iOS 18+)
```

## Code Style

- Always use kebab-case for file names, e.g. `comment-card.tsx`
- Always remove old route files when moving or restructuring navigation
- Never use special characters in file names
- Configure tsconfig.json with path aliases, and prefer aliases over relative imports for refactors.

## Routes

See `./references/route-structure.md` for detailed route conventions.

- Routes belong in the `app` directory.
- Never co-locate components, types, or utilities in the app directory. This is an anti-pattern.
- Ensure the app always has a route that matches "/", it may be inside a group route.

## Library Preferences

- `Color` from `expo-router` for native semantic colors, not raw `PlatformColor` (type-safe, auto-adapts to light/dark). See `expo-native-ui` for the full color palette pattern.
- In SDK 56+, never import from `@react-navigation/*` directly — use `expo-router/react-navigation` instead (covers `@react-navigation/native`, `/core`, `/elements`, `/routers`)

## Behavior

- Prefer `Stack.SearchBar` to add a search bar to a screen

# Navigation

## Link

Use `<Link href="/path" />` from 'expo-router' for navigation between routes.

```tsx
import { Link } from 'expo-router';

// Basic link
<Link href="/path" />

// Wrapping custom components
<Link href="/path" asChild>
  <Pressable>...</Pressable>
</Link>
```

Whenever possible, include a `<Link.Preview>` to follow iOS conventions. Add context menus and previews frequently to enhance navigation.

## Stack

- ALWAYS use `_layout.tsx` files to define stacks
- Use Stack from 'expo-router/stack' for native navigation stacks

### Page Title

Set the page title with `Stack.Title`:

```tsx
<Stack.Title>Home</Stack.Title>
```

## Context Menus

Add long press context menus to Link components:

```tsx
import { Link } from "expo-router";

<Link href="/settings" asChild>
  <Link.Trigger>
    <Pressable>
      <Card />
    </Pressable>
  </Link.Trigger>
  <Link.Menu>
    <Link.MenuAction
      title="Share"
      icon="square.and.arrow.up"
      onPress={handleSharePress}
    />
    <Link.MenuAction
      title="Block"
      icon="nosign"
      destructive
      onPress={handleBlockPress}
    />
    <Link.Menu title="More" icon="ellipsis">
      <Link.MenuAction title="Copy" icon="doc.on.doc" onPress={() => {}} />
      <Link.MenuAction
        title="Delete"
        icon="trash"
        destructive
        onPress={() => {}}
      />
    </Link.Menu>
  </Link.Menu>
</Link>;
```

## Link Previews

Use link previews frequently to enhance navigation:

```tsx
<Link href="/settings">
  <Link.Trigger>
    <Pressable>
      <Card />
    </Pressable>
  </Link.Trigger>
  <Link.Preview />
</Link>
```

Link preview can be used with context menus.

## Modal

Present a screen as a modal:

```tsx
<Stack.Screen name="modal" options={{ presentation: "modal" }} />
```

Prefer this to building a custom modal component.

## Sheet

Present a screen as a dynamic form sheet:

```tsx
<Stack.Screen
  name="sheet"
  options={{
    presentation: "formSheet",
    sheetGrabberVisible: true,
    sheetAllowedDetents: [0.5, 1.0],
    contentStyle: { backgroundColor: "transparent" },
  }}
/>
```

- Using `contentStyle: { backgroundColor: "transparent" }` makes the background liquid glass on iOS 26+.

## Common route structure

A standard app layout with tabs and stacks inside each tab:

```
app/
  _layout.tsx — <NativeTabs />
  (index,search)/
    _layout.tsx — <Stack />
    index.tsx — Main list
    search.tsx — Search view
```

```tsx
// app/_layout.tsx
import { NativeTabs } from "expo-router/unstable-native-tabs";
import { ThemeProvider, DarkTheme, DefaultTheme } from "expo-router/react-navigation";
import { useColorScheme } from "react-native";

export default function Layout() {
  const colorScheme = useColorScheme();
  return (
    <ThemeProvider value={colorScheme === "dark" ? DarkTheme : DefaultTheme}>
      <NativeTabs>
        <NativeTabs.Trigger name="(index)">
          <NativeTabs.Trigger.Icon sf="list.dash" md="list" />
          <NativeTabs.Trigger.Label>Items</NativeTabs.Trigger.Label>
        </NativeTabs.Trigger>
        <NativeTabs.Trigger name="(search)" role="search" />
      </NativeTabs>
    </ThemeProvider>
  );
}
```

Create a shared group route so both tabs can push common screens:

```tsx
// app/(index,search)/_layout.tsx
import { Stack } from "expo-router/stack";
import { colors } from "@/theme/colors";

export default function Layout({ segment }) {
  const screen = segment.match(/\((.*)\)/)?.[1]!;
  const titles: Record<string, string> = { index: "Items", search: "Search" };

  return (
    <Stack
      screenOptions={{
        headerTransparent: true,
        headerShadowVisible: false,
        headerLargeTitleShadowVisible: false,
        headerLargeStyle: { backgroundColor: "transparent" },
        headerTitleStyle: { color: colors.label },
        headerLargeTitleEnabled: true,
        headerBlurEffect: "none",
        headerBackButtonDisplayMode: "minimal",
      }}
    >
      <Stack.Screen name={screen} options={{ title: titles[screen] }} />
      <Stack.Screen name="i/[id]" options={{ headerLargeTitleEnabled: false }} />
    </Stack>
  );
}
```

`headerLargeTitleEnabled` is the SDK 56+ option name; older SDKs use `headerLargeTitle`, which is deprecated upstream.

## Submitting Feedback
If you encounter errors, misleading or outdated information in this skill, report it so Expo can improve:
```bash
npx --yes @expo/agent-cli@latest feedback --category skills --subject "expo-router" "<actionable feedback>"
```
Only submit when you have something specific and actionable to report. Include as much relevant context as possible.
If an agent repeatedly fails at an Expo task or the user has to step in, submit a brief report of the task, expected result, and what went wrong using `--category evals` and the relevant Expo package or command as `--subject`.