Turn on/off Flashlight to Make a Torch App in React Native

Turn on/off Flashlight to Make a Torch App in React Native

This is an Example to Turn on/off Flashlight to Make a Torch App in React Native. To Turn on/off the Flashlight in React Native we will use the react-native-torch library.

In this example, we will make a simple screen with a button to turn on the flashlight. So let’s get started.

Turn On the Flashlight using

Turn Off the Flashlight using

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

Installation of Dependency

To use Torch we need to install react-native-torch dependency.

To install this open the terminal and jump into your project using

Run the following command to install

This command will copy all the dependency into your node_module directory, You can find the directory in node_module directory named react-native-torch.

–save is optional, it is just to update the react-native-torch dependancy in your package.json file.

Linking of Dependency

After installing the dependency you need to link it with your project using

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.

Now 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.
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
react-native run-ios (macOS only).

IOS

Android

This is how you can Turn on/off Flashlight to Make a Torch App in React Native. 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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