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Version: 7.x

Hello React Navigation

In a web browser, you can link to different pages using an anchor (<a>) tag. When the user clicks on a link, the URL is pushed to the browser history stack. When the user presses the back button, the browser pops the item from the top of the history stack, so the active page is now the previously visited page. React Native doesn't have a built-in idea of a global history stack like a web browser does -- this is where React Navigation enters the story.

React Navigation's native stack navigator provides a way for your app to transition between screens and manage navigation history. If your app uses only one stack navigator then it is conceptually similar to how a web browser handles navigation state - your app pushes and pops items from the navigation stack as users interact with it, and this results in the user seeing different screens. A key difference between how this works in a web browser and in React Navigation is that React Navigation's native stack navigator provides the gestures and animations that you would expect on Android and iOS when navigating between routes in the stack.

Let's start by demonstrating the most common navigator, createNativeStackNavigator.

Installing the native stack navigator library​

The libraries we've installed so far are the building blocks and shared foundations for navigators, and each navigator in React Navigation lives in its own library. To use the native stack navigator, we need to install @react-navigation/native-stack :

npm install @react-navigation/native-stack@next
info

@react-navigation/native-stack depends on react-native-screens and the other libraries that we installed in Getting started. If you haven't installed those yet, head over to that page and follow the installation instructions.

Creating a native stack navigator​

createNativeStackNavigator is a function that takes a configuration object containing the screens and customization options. The screens are React Components that render the content displayed by the navigator.

createStaticNavigation is a function that takes the navigator defined earlier and returns a component that can be rendered in the app. It's only called once in the app.

// In App.js in a new project

import * as React from 'react';
import { View, Text } from 'react-native';
import { createStaticNavigation } from '@react-navigation/native';
import { createNativeStackNavigator } from '@react-navigation/native-stack';

function HomeScreen() {
  return (
    <View style={{ flex: 1, alignItems: 'center', justifyContent: 'center' }}>
      <Text>Home Screen</Text>
    </View>
  );
}

const RootStack = createNativeStackNavigator({
  screens: {
    Home: HomeScreen,
  },
});

const Navigation = createStaticNavigation(RootStack);

function App() {
  return <Navigation />;
}

export default App;

Basic app using stack navigator

If you run this code, you will see a screen with an empty navigation bar and a grey content area containing your HomeScreen component (shown above). The styles you see for the navigation bar and the content area are the default configuration for a stack navigator, we'll learn how to configure those later.

tip

The casing of the route name doesn't matter -- you can use lowercase home or capitalized Home, it's up to you. We prefer capitalizing our route names.

Configuring the navigator​

All of the route configuration is specified as props to our navigator. We haven't passed any props to our navigator, so it just uses the default configuration.

Let's add a second screen to our native stack navigator and configure the Home screen to render first:

function DetailsScreen() {
  return (
    <View style={{ flex: 1, alignItems: 'center', justifyContent: 'center' }}>
      <Text>Details Screen</Text>
    </View>
  );
}

const RootStack = createNativeStackNavigator({
  initialRouteName: 'Home',
  screens: {
    Home: HomeScreen,
    Details: DetailsScreen,
  },
});

const Navigation = createStaticNavigation(RootStack);

function App() {
  return <Navigation />;
}

Now our stack has two routes, a Home route and a Details route. A route can be specified by using the Screen component. The Screen component accepts a name prop which corresponds to the name of the route we will use to navigate, and a component prop which corresponds to the component it'll render.

Here, the Home route corresponds to the HomeScreen component, and the Details route corresponds to the DetailsScreen component. The initial route for the stack is the Home route. Try changing it to Details and reload the app (React Native's Fast Refresh won't update changes from initialRouteName, as you might expect), notice that you will now see the Details screen. Then change it back to Home and reload once more.

warning

When using the dynamic API, the component prop accepts a component, not a render function. Don't pass an inline function (e.g. component={() => <HomeScreen />}), or your component will unmount and remount losing all state when the parent component re-renders. See Passing additional props for alternatives.

Specifying options​

Each screen in the navigator can specify some options for the navigator, such as the title to render in the header.

To specify the options, we'll change how we have specified the screen component:

const RootStack = createNativeStackNavigator({
  initialRouteName: 'Home',
  screens: {
    Home: {
      screen: HomeScreen,
    },
    Details: DetailsScreen,
  },
});

Now, we can add an options property:

const RootStack = createNativeStackNavigator({
  initialRouteName: 'Home',
  screens: {
    Home: {
      screen: HomeScreen,
      options: {
        title: 'Overview',
      },
    },
    Details: DetailsScreen,
  },
});

Sometimes we will want to specify the same options for all of the screens in the navigator. For that, we can add a screenOptions property to the configuration:

const RootStack = createNativeStackNavigator({
  initialRouteName: 'Home',
  screenOptions: {
    headerStyle: { backgroundColor: 'tomato' },
  },
  screens: {
    Home: {
      screen: HomeScreen,
      options: {
        title: 'Overview',
      },
    },
    Details: DetailsScreen,
  },
});

Passing additional props​

Passing additional props to a screen is not supported in the static API.

What's next?​

The natural question at this point is: "how do I go from the Home route to the Details route?". That is covered in the next section.

Summary​

  • React Native doesn't have a built-in API for navigation like a web browser does. React Navigation provides this for you, along with the iOS and Android gestures and animations to transition between screens.
  • createNativeStackNavigator is a function that takes the screens configuration and renders our content.
  • Each property under screens refers to the name of the route, and the value is the component to render for the route.
  • To specify what the initial route in a stack is, provide an initialRouteName option for the navigator.
  • To specify screen-specific options, we can specify an options property, and for common options, we can specify screenOptions.