Navigating Between Screens
Mobile apps are rarely made up of a single screen. Managing the presentation of, and transition between, multiple screens is typically handled by what is known as a navigator.
This guide covers the various navigation components available in React Native. If you are getting started with navigation, you will probably want to use React Navigation. React Navigation provides a straightforward navigation solution, with the ability to present common stack navigation and tabbed navigation patterns on both Android and iOS.
If you're integrating React Native into an app that already manages navigation natively, or looking for an alternative to React Navigation, the following library provides native navigation on both platforms: react-native-navigation.
React Navigation
The community solution to navigation is a standalone library that allows developers to set up the screens of an app with a few lines of code.
Installation and setup
First, you need to install them in your project:
npm install @react-navigation/native @react-navigation/native-stack
Next, install the required peer dependencies. You need to run different commands depending on whether your project is an Expo managed project or a bare React Native project.
-
If you have an Expo managed project, install the dependencies with
expo
:npx expo install react-native-screens react-native-safe-area-context
-
If you have a bare React Native project, install the dependencies with
npm
:npm install react-native-screens react-native-safe-area-context
For iOS with bare React Native project, make sure you have CocoaPods installed. Then install the pods to complete the installation:
cd ios
pod install
cd ..
You might get warnings related to peer dependencies after installation. They are usually caused by incorrect version ranges specified in some packages. You can safely ignore most warnings as long as your app builds.
Now, you need to wrap the whole app in NavigationContainer
. Usually you'd do this in your entry file, such as index.js
or App.js
:
import * as React from 'react';
import {NavigationContainer} from '@react-navigation/native';
const App = () => {
return (
<NavigationContainer>
{/* Rest of your app code */}
</NavigationContainer>
);
};
export default App;
Now you are ready to build and run your app on the device/simulator.
Usage
Now you can create an app with a home screen and a profile screen:
import * as React from 'react';
import {NavigationContainer} from '@react-navigation/native';
import {createNativeStackNavigator} from '@react-navigation/native-stack';
const Stack = createNativeStackNavigator();
const MyStack = () => {
return (
<NavigationContainer>
<Stack.Navigator>
<Stack.Screen
name="Home"
component={HomeScreen}
options={{title: 'Welcome'}}
/>
<Stack.Screen name="Profile" component={ProfileScreen} />
</Stack.Navigator>
</NavigationContainer>
);
};
In this example, there are 2 screens (Home
and Profile
) defined using the Stack.Screen
component. Similarly, you can define as many screens as you like.
You can set options such as the screen title for each screen in the options
prop of Stack.Screen
.
Each screen takes a component
prop that is a React component. Those components receive a prop called navigation
which has various methods to link to other screens. For example, you can use navigation.navigate
to go to the Profile
screen:
const HomeScreen = ({navigation}) => {
return (
<Button
title="Go to Jane's profile"
onPress={() =>
navigation.navigate('Profile', {name: 'Jane'})
}
/>
);
};
const ProfileScreen = ({navigation, route}) => {
return <Text>This is {route.params.name}'s profile</Text>;
};
This native-stack
navigator uses the native APIs: UINavigationController
on iOS and Fragment
on Android so that navigation built with createNativeStackNavigator
will behave the same and have the same performance characteristics as apps built natively on top of those APIs.
React Navigation also has packages for different kind of navigators such as tabs and drawer. You can use them to implement various patterns in your app.
For a complete intro to React Navigation, follow the React Navigation Getting Started Guide.