Once you've set these up, you can launch your app on an Android Virtual Device by running npm run android, or on the iOS Simulator by running npm run ios (macOS only). If you want to run your app on the iOS Simulator or an Android Virtual Device, please refer to the instructions for building projects with native code to learn how to install Xcode and set up your Android development environment.

Running your app on a simulator or virtual deviceĬreate React Native App makes it really easy to run your React Native app on a physical device without setting up a development environment. If you're curious to learn more about React Native, continue on to the Tutorial. If you can't get this to work, see the Troubleshooting section in the README for Create React Native App. That's it!Ĭongratulations! You've successfully run and modified your first React Native app.Ĭreate React Native App also has a user guide you can reference if you have questions specific to the tool. The application should reload automatically once you save your changes. Open App.js in your text editor of choice and edit some lines. Now that you have successfully run the app, let's modify it. Using the Expo app, scan the QR code from your terminal to open your project.

Install the Expo client app on your iOS or Android phone and connect to the same wireless network as your computer. This will start a development server for you, and print a QR code in your terminal. Then run the following commands to create a new React Native project called 'AwesomeProject': create-react-native-app AwesomeProject It allows you to start a project without installing or configuring any tools to build native code - no Xcode or Android Studio installation required (see Caveats).Īssuming that you have Node installed, you can use npm to install the create-react-native-app command line utility: npm install -g create-react-native-app Create React Native App is the easiest way to start building a new React Native application.

Run react native android studio