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javascriptreact-nativemobile-application

React Native - navigation is undefined


I have "ProfileScreen" declared in the App.js

function App({ navigation }) {
return (
    <>
    <StatusBar hidden />
    <NavigationContainer>
    <Stack.Navigator initialRouteName="Home">
        
        <Stack.Screen 
        ...            
        component={HomeScreen} 
        ...
        />

        <Stack.Screen 
        ...
        component={FeedScreen}
        ...
        />

        <Stack.Screen 
        ... 
        component={ProfileScreen} 
        ...
        />

    </Stack.Navigator>
    </NavigationContainer>
    </>
);
}

I access ProfileScreen inside FeedScreen.js

export const ProfileScreen = () => {
return(
  <Text style={{ textAlign: "left", color: "black", fontSize: 24, fontFamily: 'Montserrat_100Thin_Italic' }}>
    Hello
  </Text>
);
}

Inside FeedScreen.js I want to navigate to ProfileScreen:

const Item = ({ item }, { navigation }) => {
return (
  <>
    <TouchableOpacity onPress={() => navigation.navigate("ProfileScreen")}>
      <Text style={{ textAlign: "left", color: "white", fontSize: 24, fontFamily: 'Montserrat_100Thin_Italic' }}>
        <Image
          style={{ alignSelf: "center", borderRadius: 50 }}
          source={{ uri: item.profile_picture, width: 48, height: 48 }}
        />
        {item.username}
      </Text>
    </TouchableOpacity>
  </>
);
};

Unfortunately, everything returns Undefined is not an object (evaluating 'navigation.navigate')


Solution

  • For an easy solution use the hook useNavigation inside your Item component as a following:

    import { useNavigation } from '@react-navigation/native'; 
    
    const Item = ({item}) => {
      const navigation = useNavigation();
      return (
        <TouchableOpacity onPress={() => navigation.navigate('ProfileScreen')}>
          <Text
            style={{
              textAlign: 'left',
              color: 'white',
              fontSize: 24,
              fontFamily: 'Montserrat_100Thin_Italic',
            }}>
            <Image
              style={{alignSelf: 'center', borderRadius: 50}}
              source={{uri: item.profile_picture, width: 48, height: 48}}
            />
            {item.username}
          </Text>
        </TouchableOpacity>
      );
    };