React Native Tab Navigation Component

14 Jun, 2021
In this article, we are going to see how to implement Tab Navigation in react-native. For this, we are going to use createBottomTabNavigator component. It is basically used for navigation from one page to another. These days mobile apps are made up of a single screen, so create various navigation components in React Native. We want to use React Navigation.
Syntax:
const Tab = createBottomTabNavigator();
<Tab.Navigator >
   <Tab.Screen/>
</Tab.Navigator>
Props in Tab Navigation:
initialRouteName: It is the initial route that opens when the application loads.
order: It basically sets the order of the tabs.
paths: It controls the mapping of the route screen to path config.
lazy: If its value is true, then the tab is rendered when it becomes active for the first time. Its default value is true.
tabBarComponent: It is an optional prop. It overrides the component which is used as a tab bar.
tabBarOptions: It is an object of many properties like tabStyle , showLabel, showIcon, style, etc...
 
Now let’s start with the implementation:
Step 1: Open your terminal and install expo-cli by the following command.npm install -g expo-cli
Step 1: Open your terminal and install expo-cli by the following command.
npm install -g expo-cli
Step 2: Now create a project by the following command.expo init myapp
Step 2: Now create a project by the following command.
expo init myapp
Step 3: Now go into your project folder i.e. myappcd myapp
Step 3: Now go into your project folder i.e. myapp
cd myapp
Step 4: Now install react-navigation into your project. React Navigation is used to navigate between one page to another. Install it by using the following command.npm install @react-navigation/native
Step 4: Now install react-navigation into your project. React Navigation is used to navigate between one page to another. Install it by using the following command.
npm install @react-navigation/native
Step 5: Now install dependencies into your react-native project by using the following command.npm install react-native-reanimated react-native-gesture-handler react-native-screens react-native-safe-area-context @react-native-community/masked-view
Step 5: Now install dependencies into your react-native project by using the following command.
npm install react-native-reanimated react-native-gesture-handler react-native-screens react-native-safe-area-context @react-native-community/masked-view
 
Step 6: Now install bottom-tabs from react-navigation.npm install @react-navigation/bottom-tabs
Step 6: Now install bottom-tabs from react-navigation.
npm install @react-navigation/bottom-tabs
For React Tab Navigation: This can be used in React Native as well
https://reactnavigation.org/docs/tab-based-navigation/
Project Structure:
Example: Now let’s implement Tab Navigation.
App.js
import * as React from 'react';import { Text, View } from 'react-native';import { NavigationContainer }          from '@react-navigation/native';import { createBottomTabNavigator }          from '@react-navigation/bottom-tabs';  function Home() {  return (    <View style={{ flex: 1, justifyContent: 'center',                    alignItems: 'center' }}>      <Text>Home!</Text>    </View>  );}  function Setting() {  return (    <View style={{ flex: 1, justifyContent: 'center',                    alignItems: 'center' }}>      <Text>Settings!</Text>    </View>  );}  function Notification() {  return (    <View style={{ flex: 1, justifyContent: 'center',                   alignItems: 'center'}}>      <Text>Notifications!</Text>    </View>  );}  const Tab = createBottomTabNavigator();  export default function App() {  return (    <NavigationContainer >      <Tab.Navigator initialRouteName={Home} >        <Tab.Screen name="Home" component={Home}  />        <Tab.Screen name="Notifications"                     component={Notification} />        <Tab.Screen name="Settings" component={Setting} />      </Tab.Navigator>    </NavigationContainer>  );}
Start the server by using the following command.
npm run android
Output: If your emulator did not open automatically then you need to do it manually. First, go to your android studio and run the emulator. Now start the server again. 
Reference: https://reactnative.dev/docs/navigation#react-navigation
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React-Native
React-Native Component
JavaScript
Web Technologies
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