This is a new [**React Native**](https://reactnative.dev) project, bootstrapped using [`@react-native-community/cli`](https://github.com/react-native-community/cli). # Getting Started > **Note**: Make sure you have completed the [Set Up Your Environment](https://reactnative.dev/docs/set-up-your-environment) guide before proceeding. ## Step 1: Start Metro First, you will need to run **Metro**, the JavaScript build tool for React Native. To start the Metro dev server, run the following command from the root of your React Native project: ```sh # Using npm npm start # OR using Yarn yarn start ``` ## Step 2: Build and run your app With Metro running, open a new terminal window/pane from the root of your React Native project, and use one of the following commands to build and run your Android or iOS app: ### Android ```sh # Using npm npm run android # OR using Yarn yarn android ``` ### iOS For iOS, remember to install CocoaPods dependencies (this only needs to be run on first clone or after updating native deps). The first time you create a new project, run the Ruby bundler to install CocoaPods itself: ```sh bundle install ``` Then, and every time you update your native dependencies, run: ```sh bundle exec pod install ``` For more information, please visit [CocoaPods Getting Started guide](https://guides.cocoapods.org/using/getting-started.html). ```sh # Using npm npm run ios # OR using Yarn yarn ios ``` If everything is set up correctly, you should see your new app running in the Android Emulator, iOS Simulator, or your connected device. This is one way to run your app — you can also build it directly from Android Studio or Xcode. ## Step 3: Modify your app Now that you have successfully run the app, let's make changes! Open `App.tsx` in your text editor of choice and make some changes. When you save, your app will automatically update and reflect these changes — this is powered by [Fast Refresh](https://reactnative.dev/docs/fast-refresh). When you want to forcefully reload, for example to reset the state of your app, you can perform a full reload: - **Android**: Press the R key twice or select **"Reload"** from the **Dev Menu**, accessed via Ctrl + M (Windows/Linux) or Cmd ⌘ + M (macOS). - **iOS**: Press R in iOS Simulator. ## Congratulations! 🎉 You've successfully run and modified your React Native App. 🥳 ### 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 [docs](https://reactnative.dev/docs/getting-started). # Troubleshooting If you're having issues getting the above steps 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. # weather