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Expo Router Experimental Stack
基于 react-native-screens 实验性 gamma stack 构建的 Stack 的可选同级组件。仅供测试使用。
重要
ExperimentalStack是一个 alpha API,自 Expo SDK 56 起可用。它仅用于测试——在可用于生产之前,API 和功能集都可能发生变化。
ExperimentalStack 是 Stack 的同级组件,由新的 react-native-screens/experimental 堆栈提供支持。它按导航器逐个启用:在你想迁移的特定布局中,将 <Stack /> 替换为 <ExperimentalStack />,并在其他所有地方继续使用 <Stack />。
我们提前分享它,是为了让你可以在自己的应用中试用,并告诉我们还缺少什么。当前支持的选项范围有意保持得较窄,并且会随着时间推移逐步扩展。
有关适用于原生和 Web 应用的基于文件路由库的更多信息,请参阅 Expo Router 参考文档。
支持的功能
支持的屏幕选项:
titleheaderShownheaderTransparentheaderBackVisible
在 Android 上,ExperimentalStack 自带对 预测性返回手势 的支持。你仍然需要通过在你的 app 配置 中将 android.predictiveBackGestureEnabled 设置为 true 来为你的应用启用它。
平台支持
ExperimentalStack 仅支持原生平台。在 Web 上,它会回退到标准的 Stack,因此同一布局无需条件代码即可跨平台工作。
基本用法
import { ExperimentalStack as Stack } from 'expo-router'; export default function Layout() { return ( <Stack screenOptions={{ headerShown: true }}> <Stack.Screen name="index" options={{ title: '首页' }} /> <Stack.Screen name="details" options={{ title: '详情' }} /> </Stack> ); }
你可以像使用 Stack 一样组合 ExperimentalStack.Screen 和 ExperimentalStack.Protected。
已知限制
有限的屏幕选项
ExperimentalStack 仅支持 title、headerShown、headerTransparent 和 headerBackVisible。传递任何其他选项(例如 headerLeft、headerRight、headerTitle、headerStyle、headerTintColor、动画覆盖项、状态栏选项)都会记录开发警告且不起作用。对于需要这些选项的屏幕,请继续使用 <Stack />。
在 Android 上不能与 Stack 混用
在 Android 上,ExperimentalStack 和标准的 Stack 不能在同一个应用中共存——请为原生堆栈选择一种导航器类型。我们希望在未来版本中取消这一限制,这样你就可以一次迁移一个导航器。
安装
ExperimentalStack 作为 expo-router 的一部分发布。如果你的项目中还没有它,请按照 Expo Router 安装指南进行操作:
了解如何在你的项目中安装 Expo Router。
API
import { ExperimentalStack } from 'expo-router';
Components
Type: React.Element<Omit<Omit<ExperimentalStackNavigatorProps, 'children' | 'initialRouteName' | 'layout' | 'screenListeners' | 'screenOptions' | 'screenLayout' | 'UNSTABLE_router' | 'UNSTABLE_routeNamesChangeBehavior' | 'id'> & DefaultRouterOptions<string> & { children: ReactNode; layout?: ((props: { state: StackNavigationState<ParamListBase>; navigation: NavigationHelpers<ParamListBase, {}>; descriptors: Record<...>; children: ReactNode; }) => ReactElement<...>) | undefined; ... 4 more ...; UNSTABLE_routeNamesChangeBehavior?: "firstMatch" | ... 1 more ... | undefined; ..., 'children'> & Partial<Pick<Omit<ExperimentalStackNavigatorProps, 'children' | 'initialRouteName' | 'layout' | 'screenListeners' | 'screenOptions' | 'screenLayout' | 'UNSTABLE_router' | 'UNSTABLE_routeNamesChangeBehavior' | 'id'> & DefaultRouterOptions<string> & { children: ReactNode; layout?: ((props: { state: StackNavigationState<ParamListBase>; navigation: NavigationHelpers<ParamListBase, {}>; descriptors: Record<...>; children: ReactNode; }) => ReactElement<...>) | undefined; ... 4 more ...; UNSTABLE_routeNamesChangeBehavior?: "firstMatch" | ... 1 more ... | undefined; ..., 'children'>>>
Renders the new react-native-screens/experimental native stack.
Sibling to Stack. Native-only — on web it falls back to the standard Stack.
Opt-in per navigator: replace <Stack /> with <ExperimentalStack /> in the
specific layout you want to migrate.
Type: React.Element<StackScreenProps>
Type: React.Element<StackScreenBackButtonProps>
Component to configure the back button.
Can be used inside Stack.Screen in a layout or directly inside a screen component.
Example
import { Stack } from 'expo-router'; export default function Layout() { return ( <Stack> <Stack.Screen name="detail"> <Stack.Screen.BackButton displayMode="minimal">Back</Stack.Screen.BackButton> </Stack.Screen> </Stack> ); }
Example
import { Stack } from 'expo-router'; export default function Page() { return ( <> <Stack.Screen.BackButton hidden /> <ScreenContent /> </> ); }
Note: If multiple instances of this component are rendered for the same screen, the last one rendered in the component tree takes precedence.
Deprecated: Use
Stack.Titleinstead.
Type: React.Element<StackTitleProps>
Props
ExperimentalStackNavigationProp<ParamList, RouteName, NavigatorID>RouteProp<ParamList, RouteName>Types
Navigator-level events emitted by ExperimentalStack. Mirrors the subset of
NativeStackNavigationEventMap that the gamma Stack.Screen lifecycle
callbacks can drive.
| Property | Type | Description |
|---|---|---|
| gestureCancel | {
data: undefined
} | - |
| transitionEnd | {
data: {
closing: boolean
}
} | - |
| transitionStart | {
data: {
closing: boolean
}
} | - |
Type: NavigationHelpers<ParamListBase, ExperimentalStackNavigationEventMap>
Options accepted by ExperimentalStack screens. Mirrors the narrow option
surface of the gamma <Stack.HeaderConfig> component from
react-native-screens/experimental. Anything outside this shape is dropped
with a __DEV__ warning at runtime.
| Property | Type | Description |
|---|---|---|
| headerBackVisible(optional) | boolean | - |
| headerShown(optional) | boolean | - |
| headerTransparent(optional) | boolean | - |
| title(optional) | string | - |
Literal type: union
Acceptable values are: NavigationProp<ParamList, RouteName, NavigatorID, StackNavigationState<ParamList>, ExperimentalStackNavigationOptions, ExperimentalStackNavigationEventMap> | StackActionHelpers<ParamList>