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 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 the react-native-cli command line utility.
Open the terminal and go to the workspace and run Run the following commands to create a new React Native project This will make a project structure with an index file named App.js in your project directory.

Installation 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

Run the following command

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

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 following command:

You can see the result like this

You can see the following changes in your android project. If you are unable to find the changes then please do those changes as they are must for this example.

Go to the ScreenshotExample> android > app > build.gradle.
Scroll down and you can see the following dependency and if not please add this.

Open ScreenshotExample> android > settings.gradle and you can see the following lines and if not please add this.

 

Open ScreenshotExample> android > app > src > main > java > com > screenshotexample> MainApplication.java  and you can see the following lines in imports if not then please add

Scroll down and you can see the following line in getPackages after new MainReactPackage() if not then please add a comma(,) and add

 

Here we have done with our installation of the library. 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

To Run the React Native App

Open the terminal again and jump into your project using. To run the project on an Android Virtual Device or on real debugging device or on the iOS Simulator by running

          

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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About Snehal Agrawal

#SelfLearner #MobileAppDeveloper #TechnologyMiner #OpenSourceLover thats enough to describe me..

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