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How to detect device is emulator in react native

Infinitbility
React Native
September 29th, 2021 · 1 min read
How to detect device is emulator in react native

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This tutorial will help you to detect device is emulator or not in ios, android, and windows, here we will use react-native-device-info ( https://github.com/react-native-device-info/react-native-device-info ) for detection device is emulator or not.

Let’s start today tutorial How to detect device is emulator in react native

Introduction

React Native device info provide isEmulator() function to check app running in emulator or not it will return only true or false. isEmulator() function work in ios, android, and windows.

Installation

  • Go to your project directory and install react-native-device-info package using npm.
1npm install --save react-native-device-info
  • Link react-native-device-info package if your react native version less then 0.63.
1npx react-native link react-native-device-info

Syntax

DeviceInfo.isEmulator() function usages syntax.

1import DeviceInfo from 'react-native-device-info';
2
3
4DeviceInfo.isEmulator().then((isEmulator) => {
5 if (!isEmulator) {
6 // ...
7 }
8});

Example

In Below Example, we will isEmulator() value on constant and show in application.

React Native Device Info isEmulator example

1import React, { Component } from 'react';
2import {
3 StyleSheet,
4 View,
5 Text,
6 SafeAreaView,
7} from 'react-native';
8import DeviceInfo from 'react-native-device-info';
9
10class App extends Component {
11
12 constructor(props) {
13 super(props);
14
15 this.state = {
16 isEmulator: false
17 }
18 }
19
20
21 componentDidMount(){
22 DeviceInfo.isEmulator().then((isEmulator) => {
23 if (isEmulator) {
24 this.setState({isEmulator: true});
25 }
26 });
27 }
28
29
30
31 render() {
32 const { isEmulator } = this.state;
33 return (
34 <SafeAreaView style={{ flex: 1 }}>
35 <View style={styles.container}>
36 <Text>App running in emulator </Text>
37 <Text>{`${isEmulator}`}</Text>
38 </View>
39 </SafeAreaView>
40 );
41 }
42}
43
44const styles = StyleSheet.create({
45 container: {
46 flex: 1,
47 alignItems: 'center',
48 marginTop: 20,
49 backgroundColor: '#ffffff',
50 },
51});
52
53export default App;

Output

React Native, DeviceInfo, isBatteryCharging, Example

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