Reactnative 如何在 navigation.js 文件中的 reactnavigation 中当前路由名称

您可以将navigationContainerRef从NavigationContainer传递到Navigation组件，以使navigation对象可访问.

考虑下面的代码片段.

import { createNavigationContainerRef } from "@react-navigation/native"

export const navigationRef = createNavigationContainerRef()

const App = () => {
    return <NavigationContainer
              ref={navigationRef}>
                 <Navigation navigation={navigationRef} />
            </NavigationContainer>  
}
export default App

然后，在Navigation之内.

export default function Navigation({ navigation }) {

  const route = navigation.current?.getCurrentRoute()
  
  return (
      <Stack.Navigator
        screenOptions={{
          headerShown: false,
        }}>
            <Stack.Screen name="HomeScreen" component={HomeScreen} />
      </Stack.Navigator>
  );
}

然后使用route?.name访问当前路由名称.

Edit:正如jhon antoy在 comments 中正确指出的那样，如果我们导航到不同的屏幕，这不会更新当前路由状态.我们需要自己更新如下.

export const navigationRef = createNavigationContainerRef();

const App = () => {
  const [routeName, setRouteName] = useState();

  return (
    <NavigationContainer
      ref={navigationRef}
      onReady={() => {
        setRouteName(navigationRef.getCurrentRoute().name)
      }}
      onStateChange={async () => {
        const previousRouteName = routeName;
        const currentRouteName = navigationRef.getCurrentRoute().name;
        console.log("route", currentRouteName)
        setRouteName(currentRouteName);
      }}
    >
       <Navigation routeName={routeName} />
    </NavigationContainer>
  );
}

export default App;

Navigation以内.

export function Navigation(props) {

  const route = props.routeName

  console.log(props)

  return (
      <Stack.Navigator
        screenOptions={{
          headerShown: false,
        }}>
            <Stack.Screen name="HomeScreen" component={HomeScreen} />
      </Stack.Navigator>
  );
}

我得了snack with some simple navigation buttons分.