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Getting Started

Note: Make sure you have completed the React Native - Environment Setup instructions till "Creating a new application" step, before proceeding.

Step 1: Install modules

# using npm
npm install

To run project on iOS, you have to install pods

# using Cocoapods
npx pod-install

Step 2: Start the Metro Server

First, you will need to start Metro, the JavaScript

To start Metro, run the following command from the root of your React Native project:

# using npm
npm start

Step 3: Start Application

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:

For Android

npm run android

For iOS

npm run ios

Sometime ios can't select device to run, we can use these commands:

xcrun simctl list devices
npm run ios -- --udid="AAAAAAAA-AAAA-AAAA-AAAA-AAAAAAAAAAAA"

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.