React Native Dimensions – To Get Device Height Width in React Native

React Native Dimensions

Here is an Example to Get Device Height Width on Button Click in React Native. We will use Dimensions component of react-native to get the Height and Width of the Device.

In mobile app development, we have to support different screens sizes. Especially if you are working on an App where responsiveness matters a lot then you need to keep track of Device Height and Width. So Let’s get started with the example to get the Device Height Width.

Import Dimensions

import { Dimensions} from 'react-native'

To Get the Height of the Device


To Get the Width of the Device


In this example, We will get the device dimensions on a click of a button.

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 to Get Device Height Width

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


// React Native Dimensions – To Get Device Height Width in React Native

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

// import all the components we are going to use
import {
} from 'react-native';

const App = () => {
  const [height, setHeight] = useState('');
  const [width, setWidth] = useState('');

  useEffect(() => {
    //Get device Height
    //Get device Width
  }, []);

  return (
    <SafeAreaView style={{flex: 1}}>
      <View style={styles.container}>
        <Text style={styles.header}>
          React Native Dimensions
          To Get Device Height Width in React Native
        <Text style={styles.textStyle}>
          Device height: {height}, width: {width}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: 'white',
    justifyContent: 'center',
    padding: 10,
  header: {
    fontSize: 22,
    fontWeight: '600',
    textAlign: 'center',
    paddingVertical: 20,
  textStyle: {
    textAlign: 'center',
    fontSize: 18,

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





Output in Online Emulator

That was the way to get device height width on button click. 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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