React Native Example to Take Screenshot Programmatically
Here is an Example to Take Screenshot Programmatically in React Native. To take Screenshot of your screen we have an inbuilt Screenshot option provided by mobile manufacturers but you can also make this in your own Application too. To take a Screenshot we will use a very good library called react-native-view-shot. Which provides captureScreen API which is very easy to use.
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 thereact-native-cli command line utility.
Open the terminal and go to the workspace and runnpm install -g react-native-clireact-native init ProjectNameInstallation of Dependency
To use captureScreen we need to install react-native-view-shot package.
To install this open the terminal and jump into your project
1 | cd Projectname |
Run the following command
1 | npm install react-native-view-shot --save |
This command will copy all the dependencies into your node_module directory, You can find the directory in node_module the directory named react-native-view-shot.
–save is optional, it is just to update the react-native-view-shot dependancy in your package.json file.
Dependency Version for this Example used is
1 | "react-native-view-shot": "^2.4.0" |
Linking of Library
To install the react-native-view-shot library completely we have to make some changes in Android and IOS project files to link the library properly. In order to link the library you have to run the following command:
1 | react-native link react-native-view-shot |
You can see the result like this
After linking the dependency if you face Could not Compile Settings File project/android/settings.gradle error while building and installing the project then you can find the solution here.
Here we have done with our installation of the dependency. If you are still facing the trouble please comment below so that we can help you out from the problem.
You can download the source code from Github
OR
Open App.js in any code editor and replace the code with the following code
App.js
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | /*This is an React Native Example to Take Screenshot Programmatically */ import React, { Component } from 'react'; import { StyleSheet, Text, View, Image, Button, Platform } from 'react-native'; import { captureScreen } from "react-native-view-shot"; export default class App extends Component { constructor(){ super(); this.state={ //initial image to the <Image> imageURI : 'http://aboutreact.com/wp-content/uploads/2018/07/sample_img.png' } } takeScreenShot=()=>{ //handler to take screnshot captureScreen({ //either png or jpg or webm (Android). Defaults to png format: "jpg", //quality 0.0 - 1.0 (default). (only available on lossy formats like jpg) quality: 0.8 }) .then( //callback function to get the result URL of the screnshot uri => this.setState({ imageURI : uri }), error => console.error("Oops, Something Went Wrong", error) ); } render() { return ( <View style={styles.MainContainer}> <Text style={{fontSize:20}}>Click on Button Below to Take ScreenShot</Text> <Image source={{uri : this.state.imageURI}} style={{width: 200, height: 300, resizeMode: 'contain', marginTop: 5}} /> <Button title="Take Screenshot" onPress={this.takeScreenShot} /> </View> ); } } const styles = StyleSheet.create({ MainContainer: { flex: 1, justifyContent: 'center', alignItems: 'center', backgroundColor: '#fff', borderWidth: 1, borderColor: '#000', } }); |
To Run the React Native App
Open the terminal again and jump into your project using.cd ProjectNamereact-native run-androidreact-native run-ios (macOS only).Android
IOS
This is how you can take screenshot programmatically. If you have any doubt or you want to share something about the topic you can comment below or contact us here. There will be more posts coming soon. Stay tuned!
Hope you liked it. 🙂
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