React Native StatusBar

React Native StatusBar

This post will help you to Add StatusBar in React Native App in Android and IOS. React Native StatusBar is a component to show the indicators like the battery, network, notification, etc. React Native by default doesn’t understand the status bar and render the view from the top left corner of the screen and override the status bar. To avoid that we need to give top margin for IOs and Android both but as you know the hight of the status bar of both the platform is different so we need a smart solution so here is the status bar which will help you to reserve the space for the StatusBar and you can start working directly.

For those who are confused in Statusbar and Actionbar, here is the difference

To Import StatusBar in Code

import { StatusBar } from 'react-native'

Render Using

<StatusBar
    barStyle = "dark-content"
    // dark-content, light-content and default
    hidden = {false}
    //To hide statusBar
    backgroundColor = "#00BCD4"
    //Background color of statusBar only works for Android
    translucent = {false}
    //allowing light, but not detailed shapes
    networkActivityIndicatorVisible = {true}
/>

The react native StatusBar component only supports backgroundColor for Android only. So to change the color of the IOS status bar you have to wrap the Status Bar with a view that will have a hight of the status bar and background color.

<View
  style={{
    backgroundColor: '#00BCD4',
    height: Platform.OS === 'ios' ? 20 : StatusBar.currentHeight,
  }}>
  <StatusBar
    translucent
    backgroundColor="#00BCD4"
    barStyle="light-content"
  />
</View>

In this example, we will see how you can add Statusbar in your React Native application. So Let’s get started

To Make a React Native App

Getting started with React Native will help you to know more about the way you can make a React Native project. We are going to use react-native init to make our React Native App. Assuming that you have node installed, you can use npm to install the react-native-cli command line utility. Open the terminal and go to the workspace and run

npm install -g react-native-cli

Run the following commands to create a new React Native project

react-native init ProjectName

If you want to start a new project with a specific React Native version, you can use the --version argument:

react-native init ProjectName --version X.XX.X
react-native init ProjectName --version react-native@next

This will make a project structure with an index file named App.js in your project directory.

Code

Open App.js in any code editor and replace the code with the following code

App.js

In the below code we have used the backgroundColor to change the background of the status bar but IOS does not have any concept of status bar background color so it will not reflect in IOS devices. If you still want to change the background color of the status bar in IOS you can find the next code sample below this code to set the background color of the status bar in IOS.

//React Native StatusBar
//https://aboutreact.com/react-native-statusbar/

//import React in our code
import React, {useState} from 'react';

//import all the components we are going to use
import {
  SafeAreaView,
  Button,
  Text,
  StyleSheet,
  StatusBar,
  View,
} from 'react-native';

const App = () => {
  const styleTypes = ['default', 'dark-content', 'light-content'];
  const [visibleStatusBar, setVisibleStatusBar] = useState(false);
  const [styleStatusBar, setStyleStatusBar] = useState(styleTypes[0]);

  const changeVisibilityStatusBar = () => {
    setVisibleStatusBar(!visibleStatusBar);
  };

  const changeStyleStatusBar = () => {
    const styleId = styleTypes.indexOf(styleStatusBar) + 1;

    if (styleId === styleTypes.length) {
      return setStyleStatusBar(styleTypes[0]);
    }
    return setStyleStatusBar(styleTypes[styleId]);
  };

  return (
    <SafeAreaView style={{flex: 1}}>
      <View style={styles.container}>
        <View>
          <Text style={styles.textStyle}>
            StatusBar Style: {styleStatusBar}
          </Text>
          <Text style={styles.textStyle}>
            StatusBar Visibility: {!visibleStatusBar ? 'Visible' : 'Hidden'}
          </Text>
        </View>
        <StatusBar backgroundColor="blue" barStyle={styleStatusBar} />
        <View>
          <StatusBar hidden={visibleStatusBar} />
        </View>
        <View style={styles.buttonContainer}>
          <Button
            title="Toggle StatusBar"
            onPress={() => changeVisibilityStatusBar()}
          />
        </View>
        <View style={styles.buttonContainer}>
          <Button
            title="Change StatusBar Style"
            onPress={() => changeStyleStatusBar()}
          />
        </View>
      </View>
    </SafeAreaView>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    paddingTop: 20,
    backgroundColor: '#ECF0F1',
    padding: 8,
  },
  buttonContainer: {
    padding: 10,
  },
  textStyle: {
    textAlign: 'center',
  },
});

export default App;

To Run the React Native App

Open the terminal again and jump into your project using.

cd ProjectName

To run the project on an Android Virtual Device or on real debugging device

react-native run-android

or on the iOS Simulator by running (macOS only)

react-native run-ios

Download Source Code

Output Screenshot

IOS

Android

Output in Online Emulator

That was the React Native StatusBar. If you have any doubts or you want to share something about the topic you can comment below or contact us here. The remaining components will be covered in the next article. Stay tuned!

Hope you liked it. 🙂


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