This is a new React Native project, bootstrapped using @react-native-community/cli
.
Note: Make sure you have completed the React Native - Environment Setup instructions till "Creating a new application" step, before proceeding.
First, you will need to start Metro, the JavaScript bundler that ships with React Native.
gradlew.bat clean
Let Metro Bundler run in its own terminal. Open a new terminal from the root of your React Native project. Run the following command to start your Android or iOS app:
If everything is set up _correctly_, you should see your new app running in your _Android Emulator_ or _iOS Simulator_ shortly provided you have set up your emulator/simulator correctly.
This is one way to run your app — you can also run it directly from within Android Studio and Xcode respectively.
## Step 3: Modifying your App
Now that you have successfully run the app, let's modify it.
1. Open `App.tsx` in your text editor of choice and edit some lines.
2. For **Android**: Press the <kbd>R</kbd> key twice or select **"Reload"** from the **Developer Menu** (<kbd>Ctrl</kbd> + <kbd>M</kbd> (on Window and Linux) or <kbd>Cmd ⌘</kbd> + <kbd>M</kbd> (on macOS)) to see your changes!
For **iOS**: Hit <kbd>Cmd ⌘</kbd> + <kbd>R</kbd> in your iOS Simulator to reload the app and see your changes!
## Congratulations! :tada:
You've successfully run and modified your React Native App. :partying_face:
### Now what?
- If you want to add this new React Native code to an existing application, check out the [Integration guide](https://reactnative.dev/docs/integration-with-existing-apps).
- If you're curious to learn more about React Native, check out the [Introduction to React Native](https://reactnative.dev/docs/getting-started).
# Troubleshooting
If you can't get this to work, see the [Troubleshooting](https://reactnative.dev/docs/troubleshooting) page.
# Learn More
To learn more about React Native, take a look at the following resources:
- [React Native Website](https://reactnative.dev) - learn more about React Native.
- [Getting Started](https://reactnative.dev/docs/environment-setup) - an **overview** of React Native and how setup your environment.
- [Learn the Basics](https://reactnative.dev/docs/getting-started) - a **guided tour** of the React Native **basics**.
- [Blog](https://reactnative.dev/blog) - read the latest official React Native **Blog** posts.
- [`@facebook/react-native`](https://github.com/facebook/react-native) - the Open Source; GitHub **repository** for React Native.