I am Using Product Search Component In Header Of EmptyPage , It works Fine . Now My Req is to change the Header Title Component Dynamically , If i come From DiagnosticSearch Page I need The Header Title Component Should Be , How to change it Dynamically???
<Stack.Screen name='EmptyPage' component={EmptyPage} options={{ headerShown:true,headerTitle: () => <ProductSearch/>}}/>
I would do it in the EmptyPage screen component,
create:
export const screenOptions = navData => {
const title = navData.route ? navData.route.params : null
return {
headerTitle: title,
}
and inside the function of EmptyPage
useEffect(() => {
props.navigation.setParams({ title:theUpdatedTitle })
}, [theUpdatedTitle])
now in the navigation :
<Stack.Screen name='EmptyPage' component={EmptyPage} options{importedScreenOptions}/>
hope this helps you
Related
So what im trying to do, is that i have a route which is /product defined in my app.js and it has a parameter of id
App.js
<Route path='/product' element={<Product />} />
Product.js
export const Product = ({ ID }) => {
what im trying to navigate to the page /product using 'useNavigate()' and pass an id i have so i can use it there by doing so, however it's not working and showing as undefined.Does anyone have any clue about how to fix this?
const handleOpen = (id) => {
navigate('/product',{ state: { id: id } }); };
You can use useLocation to get state.
export const Product = () => {
const location = useLocation()
const id = location.state.id
}
You code is correct, the path to your prop should be props.location.state.id in the <Product /> page.
after implementing nesting navigator I am getting error in dishdetail it is not getting render I followed documentation and tried this
onPress = {
() => navigate({
name: 'Dishdetail',
params: {
screen: "Dishi",
dishId: item.id
}
})
}
but still error.
You Navigate function should be like this.
onPress={()=>this.props.navigation.navigate('Dishdetail', { screen: "Dishi" , dishId: item.id })}
According to your provided code, you didn't define any route with the name of Dishdetail, So change your Dish detail to Dishdetail like below.
<Homenavigator.Screen
name="Dishdetail"
component={Home}
/>
Imagine I have this structure for my tab bar:
const TabBarRoute = {
Home: HomeStack,
Orders: OrdersStack,
Trending: TrendingStack,
TopSelling: TopSellingStack
}
I want to show only three tabs (Orders, Trending, TopSelling) in my bottom tab navigator, How can I achieve it by react-navigation version 3.x ?
One idea that come to my mind is that I create a top stackNavigator and nest HomeStack along with my bottomTabNavigator inside of that and set the initial route of the top stackNavigator to the Home but problem with this approach is that it doesn't show the tab bar.
This example is using createBottomTabNavigator, but I imagine the same rules apply. It requires overriding the tabBarButtonComponent with a Custom component which returns null when the user doesn't have access to the given Tab.
const Config = {
allow_locations: true,
allow_stations: true
}
LocationsStackNavigator.navigationOptions = ({navigation}) => {
return {
tabBarLabel: 'Locations',
tabBarTestID: 'locations',
tabBarIcon: ({focused}) => (
<TabBarIcon
focused={focused}
name={'md-settings'}/>
)
}
};
const MyTabNav = createBottomTabNavigator(
{
LocationStackNavigator,
StationsStackNavigator,
OrdersStackNavigator,
SettingsStackNavigator
},
{
defaultNavigationOptions: ({ navigation }) => ({
tabBarButtonComponent: CustomTabButton
})
}
);
class CustomTabButton extends React.Component {
render() {
const {
onPress,
onLongPress,
testID,
accessibilityLabel,
...props
} = this.props;
if(testID === 'locations' && !Config.allow_locations) return null;
if(testID === 'stations' && !Config.allow_stations) return null;
return <TouchableWithoutFeedback onPress={onPress} onLongPress={onLongPress} testID={testID} hitSlop={{ left: 15, right: 15, top: 5, bottom: 5 }} accessibilityLabel={accessibilityLabel}>
<View {...props} />
</TouchableWithoutFeedback>;
}
}
if you want to have dynamic items which they can change according to your situation you can do it in 2 ways :
first, you can declare a component as a parent of your react-navigation component then
create a store for your items and set them as #observable and change them whenever you want
declare your items as a state of your parent component and pass them to your react navigation
In these two solutions, every time your items change caused your component re-render with new values
How can I give a custom navigation to the header back arrow in ReactNavigation? I want the back arrow in the header to navigate to the screen I define and not to the previous screen.
Thanks.
You could try 2 things:
a) use headerMode: 'none' in your sub-StackRouters instead of your root router (named RouterComponent). Ideally you shouldn't have to do anything more then and the headers of the sub-StackRouters would be displayed in your root router's header. I think I remember something similarly worked a while back for me, but I haven't tested it in a while now and I think it's unlikely that it will still work like this but you can test nevertheless.
b) and this is what I'm currently using in a different situation. To manually include the back button:
import { HeaderBackButton } from '#react-navigation/stack';
const navigationOptions = ({ navigation }) => ({
headerLeft: <HeaderBackButton onPress={() => navigation.goBack(null)} />,
})
const RouterComponent = StackNavigator({
Tabs: {
screen: Tabs
},
Profile: {
screen: ProfileStack,
navigationOptions
}
},{
mode: 'modal',
headerMode: 'none',
});
If above solution doesn't work,
Try to add navigationOptions directly to the ProfileStack definition.
const ProfileStack = StackNavigator({
ProfileHome: {
screen: ProfileHome,
navigationOptions: ({navigation}) => ({ //don't forget parentheses around the object notation
title: 'Profile',
headerLeft: <HeaderBackButton onPress={() => navigation.goBack(null)} />
})
},
ProfileEdit: { screen: ProfileEdit }
}
Hi who ever is using react-navigation 5.x you might not be able to make navigation using navigationOptions. The option is been replaced with options.
Say your in screen -1 and navigated to screen-2 and then to screen-3. By default using react-navigation you can navigate from screen-3 to screen-2. But if you want customised navigation i.e., Say from above example if you want to navigate from screen-3 to screen-1.
If you would like to retain the view of back button and only override the onPress method, you can import { HeaderBackButton } from '#react-navigation/stack' and assign that component to the headerLeft option.
Example:
<RootStack.Screen
name="dashboard"
component={Dashboard}
options={({navigation, route}) => ({
headerLeft: (props) => (
<HeaderBackButton
{...props}
onPress={() => navigation.navigate('Home')}
/>
),
})}
/>
In above example on click of back button in Dashboard screen takes you to Home screen.
Enjoy & Thanks
-Sukshith
I'm creating an app with react-native with using react-navigation for routing. I know we can change tab order in react-navigation initially. But in my case, I need to change tab order programmatically. Is there any way to do that?
The following is an "almost pseudo code" example. It should at least drive you in the right direction. The trick is to use a "connected" main navigation component which reacts to changes in a redux store (in my case I stored the tabs order in a "settings" reducer) and force re-render of the tabs and their order, changing the screenProps property passed down by react-navigation to each navigator. Then there is a TabSelector component which returns the correct screen based on the props passed. I'm sorry if it's not totally clear what I mean but English is not my primary language :)
import Tab1 from 'app/components/Tab1';
import Tab2 from 'app/components/Tab2';
// ... all the imports for react-navigation
const TabSelector = (props) => {
switch(props.tab) {
case 1:
return <Tab1 {...props} />;
case 2:
return <Tab2 {...props} />;
}
};
const Tabs = {
PreferredTab: {
screen: ({ screenProps }) => (
<TabSelector tab={screenProps.firstTab} />
),
navigationOptions: ({ screenProps }) => ({
// write label and icon based on screenProps.firstTab
})
},
OtherTab: {
screen: ({ screenProps }) => (
<TabSelector tab={screenProps.otherTab} />
),
navigationOptions: ({ screenProps }) => ({
// write label and icon based on screenProps.otherTab
})
},
// other tabs...
};
const Navigator = createTabNavigator(Tabs, {
initialRouteName: 'PreferredTab',
// other options...
});
const WrappedNavigator = props => {
// fetch tab index from redux state, for example
const firstTab = useSelector(state => state.settings.firstTab);
const otherTab = useSelector(state => state.settings.otherTab);
return <Navigator screenProps={{ firstTab: firstTab, otherTab: otherTab }} {...props} />;
};
WrappedNavigator.router = Navigator.router;
export default createAppContainer(WrappedNavigator);