React native navigation from stack navigator is not being passed down to the Restaurantsscreen function
This is the function which has to use naviagtion but it cant
export const RestaurantsScreen = ({navigation}) => (
<SafeArea>
<View style={{"backgroundColor": "rgba(255, 255, 255, 255)"}}>
<FlatList
data={[
{ name: 1 }
]}
renderItem={(item) =>{return (
<Pressable onPress={ ()=>console.log(navigation)}>
<RestaurantInfoCard />
</Pressable>
);
}}
and these are the functions where stack navigator is defined
function App() {
return (
<NavigationContainer>
<Stack.Navigator initialRouteName="Home">
<Stack.Screen name="Home" component={HomeScreen} />
<Stack.Screen name="Details" component={Screentwo} /> // this screen is currently loaded and the screentwo is importing the Restaurants screen function inside it as a component
</Stack.Navigator>
</NavigationContainer>
);
}
Kindly help
thanks
You have two solutions :
Past the navigation props from the Screentwo to you're child component RestaurantsScreen
Used the useNavigation hooks directly in your RestaurantsScreen component (see link for this hook : https://reactnavigation.org/docs/use-navigation/)
Example of the first solution:
//Screentwo inherit navigation props direclty, as this component is called in your Stack.Navigator
export const Screentwo = ({navigation}) => {
return(
//As RestaurantsScreen is not called directly in your Stack.Navigator,
//this component will not inherit navigation props,
//you need to past manually navigation props from Screentwo in this way
<RestaurantsScreen navigation={navigation} />
)
}
Example of the second solution with useNavigation :
//Directly in your RestaurantsScreen component
import { useNavigation } from '#react-navigation/native';
//No need to import navigation props
export const RestaurantsScreen = () => {
//Call useNavigation, and navigation can be used in the exact same way as if you past it as a props
const navigation = useNavigation()
return (
<SafeArea>
the rest of your code here
</SafeArea>
)
}
Related
I am developing an android app with React Native and Native-Base.
In my component button i can't get onpress to work to change page.
import React from "react";
import { StyleSheet, View, TouchableOpacity } from "react-native";
import { NativeBaseProvider, Button, Text } from "native-base";
const ButtonAPP = (props) => {
//const linkBottom = props.linkBottom;
const textBottom = props.textBottom;
return (
<NativeBaseProvider>
<View style={styles.viewButtonAPP}>
<Button
shadow={2}
style={styles.buttonAPP}
onPress={() => props.navigation.navigate("Home")}
>
<Text style={styles.textButton}>{textBottom}</Text>
</Button>
</View>
</NativeBaseProvider>
);
};
const styles = StyleSheet.create({
styles....
});
export default ButtonAPP;
THe error is:
navigate is not defined
I don't understand why for pages in my app it works but for a component like the button it doesn't
The navigation object will be passed as props by the navigation framework only to components that are defined as screens inside a navigator. If this is not the case, then the navigation object will not be passed to this component.
You have three choices.
1) Use the useNavigation hook
const ButtonAPP = (props) => {
const navigation = useNavigation();
...
<Button
shadow={2}
style={styles.buttonAPP}
onPress={() => navigation.navigate("Home")}
>
}
2) Pass the navigation object as a prop from a parent that is a screen defined in a navigator
Assume that ScreenA is a screen that is defined in a navigator, e.g. a Stack. This would look like the following snippet.
const Stack = createStackNavigator();
function MyStack() {
return (
<Stack.Navigator>
<Stack.Screen name="ScreenA" component={ScreenA} />
</Stack.Navigator>
);
}
Assume that ButtonApp is used as a child in ScreenA. Then, we can pass the prop manually, since the framework will not do this.
const ScreenA = (props) => {
return <ButtonApp navigation={props.navigation} />
}
const ButtonAPP = (props) => {
...
<Button
shadow={2}
style={styles.buttonAPP}
onPress={() => props.navigation.navigate("Home")}
>
}
3) Let ButtonApp be a screen inside a navigator
This choice usually does only make sense for actual views in the application and not for individual components. However, this is still an option.
Using the same example as in 2). However, this will work with any navigator.
const Stack = createStackNavigator();
function MyStack() {
return (
<Stack.Navigator>
<Stack.Screen name="ButtonApp" component={ButtonAPP} />
</Stack.Navigator>
);
}
Accessing the navigation object via props as you have tried initially works in this case as well.
I want to know the current route name but inside the navigation js file, I use the useRoute hook in any component and work well, but I get this error when I use useRoute inside navigation.js
Error: Couldn't find a route object. Is your component inside a screen in a navigator?
navigation.js code example,
export default function Navigation() {
const route = useRoute(); // show error >> Error: Couldn't find a route object. Is your component inside a screen in a navigator?
return (
<Stack.Navigator
screenOptions={{
headerShown: false,
}}>
<Stack.Screen name="HomeScreen" component={HomeScreen} />
</Stack.Navigator>
);
}
when I remove useRoute, the Error is gone, But I need to use useRoute or any other way to get current route name inside navigation.js file.
You can pass the navigationContainerRef from the NavigationContainer to the Navigation comomponent to make the navigation object accessible.
Consider the following code snippet.
import { createNavigationContainerRef } from "#react-navigation/native"
export const navigationRef = createNavigationContainerRef()
const App = () => {
return <NavigationContainer
ref={navigationRef}>
<Navigation navigation={navigationRef} />
</NavigationContainer>
}
export default App
Then, inside Navigation.
export default function Navigation({ navigation }) {
const route = navigation.current?.getCurrentRoute()
return (
<Stack.Navigator
screenOptions={{
headerShown: false,
}}>
<Stack.Screen name="HomeScreen" component={HomeScreen} />
</Stack.Navigator>
);
}
The current route name get then be accessed using route?.name.
Edit: As jhon antoy correctly pointed out in the comments, this does not update the current route state if we navigate to a different screen. We need to update this ourselves as follows.
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;
Inside Navigation.
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>
);
}
I have made a snack with some simple navigation buttons.
Works perfectly in v6.
In Your Stack, you have to convert the component to child.. in this way:
<RootStack.Screen
name={NameOfYourRoute}
children={props => (
<NameOfYourStack {...props} currentRoute={currentRoute} />
)}
/>
I am trying to create a login button that navigates to another page but I keep getting errors that "navigation" is not defined
here's the screenshot of the error:
screenshot here
screenshot here
that's the app component:
export default function App({navigation}) {
const { navigate } = this.props.navigation;
return (
<View style={styles.container}>
<Image
source={logo}
style={styles.stretch}
/>
<Image
source={logo2}
style={styles.stretch2}
/>
<Button title="Login" style={[styles.buttonContainer, styles.loginButton,styles.top]} onPress={() => navigation.navigate("Details")} >
<Text style={styles.loginText}>LOG IN</Text>
</Button>
<TouchableHighlight style={[styles.buttonContainer2, styles.loginButton2,styles.top2]} >
<Text style={styles.loginText2}>Register</Text>
</TouchableHighlight>
<NavigationContainer>
<Stack.Navigator >
<Stack.Screen name="Home" component={HomeScreen} />
<Stack.Screen name="Details" component={Details} />
</Stack.Navigator>
</NavigationContainer>
</View>
);
}
here I got stuck after using the navigation Ref method:
link here
there is no this.props in function components:
export default function App({navigation}) {
const { navigate } = this.props.navigation;
this should be
export default function App({navigation}) {
const { navigate } = navigation;
notice that you already destructured navigation from props in the function signature
Your App component is a React hook, so calling this.props won't work. You can just use navigation from your App's params.
The navigation prop is only available to components wrapped within your <NavigationContainer> component. You'll probably still get an error trying to call navigate from the App component since <NavigationContainer> is a child of it.
Your best bet is to only use the navigation prop on components within a <NavigationContainer> or accessing it like this based on the documentation:
https://reactnavigation.org/docs/navigating-without-navigation-prop
EDIT:
If you want to access navigation outside of the navigation container, you'll need a ref pointing to it.
import React, { useRef } from "react";
export default function App({}) {
const navigationRef = useRef(null)
// Then wherever you wanna call navigate you do this:
// () => navigationRef.current.navigate("Details")
// make sure you do a null check on navigationRef.current if you want to be extra safe
return (
<NavigationContainer ref={navigationRef}>
....
</NavigationContainer>
)
}
I have an application using React native where I am using react-navigation (5.2.9).
I built a Stack.Navigator where I've got my screens but I want the Footer component to be outside so it renders in all screens. The problem is, I can't navigate from the footer, which is what I need to do as the footer has a few buttons that should be changing the screen:
const Stack = createStackNavigator();
const App = () => {
return (
<Provider store={store}>
<NavigationContainer>
<Header />
<Stack.Navigator>
<Stack.Screen
name="Home"
component={HomeScreen}
options={{
headerShown: false
}}
/>
<Stack.Screen
name="Login"
component={LoginScreen}
options={{
headerShown: false
}}
/>
</Stack.Navigator>
<Footer />
</NavigationContainer>
</Provider>
);
};
How do I pass the navigation prop to the footer component?
Try this:
Create a new file named: RootNavigation.js
// RootNavigation.js
import * as React from 'react';
export const navigationRef = React.createRef();
export function navigate(name, params) {
navigationRef.current?.navigate(name, params);
}
// file where you have the navigation
import {navigationRef} from './path/to/RootNavigation';
<NavigationContainer ref={navigationRef}>
.....
<Footer />
</NavigationContainer>
And Footer.js should be something like this:
// Footer.js
import React from 'react';
import {View, Button} from 'react-native';
import * as RootNavigation from './path/to/RootNavigation';
const Footer= () => {
return (
<View>
<Button
title={'Go to'}
onPress={() =>
RootNavigation.navigate('screenName ', {userName: 'Lucy'})
}
/>
</View>
);
};
export default Footer;
For more info you can read the documentation. https://reactnavigation.org/docs/navigating-without-navigation-prop/
The components outside of the Stack.Screen components do not receive the navigation prop. So in this case, you have to get the NavigationContainer using refs in your footer component, as follows:
Create a ref with const myRef = React.createRef()
pass it to the <NavigationContainer ref={myRef}>, and
use that ref to navigate, myRef.current?.navigate(name, params).
It is all explained here. The docs here separate the creation of the ref in a new file, to allow you to import the ref without dependency loops/ issues. As the docs state, you can now call RootNavigation.navigate('ChatScreen', { userName: 'Lucy' }); in any js module, not just in a react component.
In your case though, you don't need the ref in separate file.
const Stack = createStackNavigator();
const navigationRef = React.createRef();
const App = () => {
return (
<Provider store={store}>
<NavigationContainer ref={navigationRef}>
<Header />
<Stack.Navigator>
<Stack.Screen
name="Home"
component={HomeScreen}
options={{
headerShown: false
}}
/>
<Stack.Screen
name="Login"
component={LoginScreen}
options={{
headerShown: false
}}
/>
</Stack.Navigator>
<Footer navigationRef={navigationRef}/>
</NavigationContainer>
</Provider>
);
};
And in <Footer/> use navigationRef.current?.navigate(name, params)
From the documentation.
https://reactnavigation.org/docs/connecting-navigation-prop/
import * as React from 'react';
import { Button } from 'react-native';
import { useNavigation } from '#react-navigation/native';
function GoToButton({ screenName }) {
const navigation = useNavigation();
return (
<Button
title={`Go to ${screenName}`}
onPress={() => navigation.navigate(screenName)}
/>
);
}
I ended up building a component called screen that will just wrap the content of screen and render the header/footer based on props:
import React from 'react';
import { View } from 'native-base';
import style from './style';
import Footer from '../../footer';
import Header from '../../header';
const Screen = ({
footer,
header,
children,
navigation
}) => (
<View style={style.screen}>
{ header && <Header navigation={navigation} />}
{ children }
{ footer && <Footer navigation={navigation} />}
</View>
);
export default Screen;
And wrapping the screens of my apps like this:
<Screen header footer navigation={navigation}>
... screen content
</Screen>
I feel like it is the best way if I can't sort that problem out.
A simple trick to extract navigation out of screenOptions.
function NavWrapper() {
const navigatorRef = useRef<any>();
<Tab.Navigator
screenOptions={({ navigation: nav }) => navigatorRef.current = nav}
>
<Tab.Screen name="screen1" />
</Tab.Navigator>
}
I solve this problem with a global state using React context API:
// When enter in the HomeScreen:
const { setGlobalNavigation, globalNavigation } = useGlobalContext();
const navigation = useNavigation<RemindersNavigationProp>();
useEffect(() => {
if (setGlobalNavigation && !globalNavigation) setGlobalNavigation(navigation);
}, [setGlobalNavigation, globalNavigation, navigation]);
// When want to use:
const { globalNavigation } = useGlobalContext();
const handleNavigate = () =>
globalNavigation.navigate("contactsStack", { screen: "newContact" });
There is a good example of switch navigator in V4 documentation of react-navigation:
https://snack.expo.io/#react-navigation/auth-flow-v3
I didn't understand how can I change this into a proper way for V5. here is the link:
https://reactnavigation.org/docs/en/upgrading-from-4.x.html#switch-navigator
Any assistance you can provide would be greatly appreciated.
Well, if you want to implement a "switch" like feature with V5, you need to opt into using the new <Stack.Navigator /> definition. Basically, the <Stack.Navigator /> can have children which are <Stack.Screen /> and anytime you explicitly switch between them (or set them to null), it will animate between them. You can find more documentation on how to do this here: https://reactnavigation.org/docs/auth-flow
There is no createSwitchNavigator in React-Navigation v5.
So it can be implement as below.
App.js
// login flow
const Auth = createStackNavigator();
const AuthStack =()=> (
<Auth.Navigator
initialRouteName="Login"
screenOptions={{
animationEnabled: false
}}
headerMode='none'
>
<Auth.Screen name="Login" component={LoginScreen} />
<Auth.Screen name="Signup" component={SignupScreen} />
</Auth.Navigator>
)
// drawer use only in authenticated screens
const Drawer = createDrawerNavigator();
const DrawerStack = () => (
<Drawer.Navigator initialRouteName="Home">
<Drawer.Screen name="Home" component={HomeScreen} />
<Drawer.Screen name="Settings" component={SettingsScreen} />
<Drawer.Screen name="Logout" component={LogoutScreen}/>
</Drawer.Navigator>
)
const RootStack = createStackNavigator();
class App extends Component {
constructor() {
super();
this.state = {
loading: true,
hasToken: false,
};
}
componentDidMount(){
AsyncStorage.getItem('jwtToken').then((token) => {
this.setState({ hasToken: token !== null,loading:false})
})
}
render() {
const {loading,hasToken} = this.state;
if (loading) {
return <WelcomeScreen/>
}
else {
return(
<NavigationContainer>
<RootStack.Navigator headerMode="none">
{ !hasToken ?
<RootStack.Screen name='Auth' component={AuthStack}/>
:
RootStack.Screen name='App' component={DrawerStack}/>
}
</RootStack.Navigator>
</NavigationContainer>
);
}
}
}
export default App;
This is only one way of doing authentication.I haven't use Redux or React Hooks here.You can see the example which used React Hooks in the React Navigation v5 documentation.
I think I found a solution for this issue which will block all unwanted navigation from the user and still keep smooth transitions between screens.
You need to add navigation.service.js like this:
import * as React from 'react';
export const navigationRef = React.createRef();
export const navigate = (routeName, params) => {
navigationRef.current?.navigate(routeName, params);
}
export const changeStack = (stackName) => {
resetRoot(stackName)
}
const resetRoot = (routeName) => {
navigationRef.current?.resetRoot({
index: 0,
routes: [{ name: routeName }],
});
}
add that ref from navigationService to NavigationContainer like this:
<NavigationContainer ref={navigationService.navigationRef}>
<Navigation />
</NavigationContainer>
now when you know you need to change stack, just call changeStack instead of navigate.
I have explained this solution in more details here:
Change stacks in react-navigation v5