1.1 Building an app in 5 minutes

1. Requirement follow Getting Started
2. Generate a new React Native project

   react-native init testRn
   

3. Build & run project

   react-native run-ios
   

   or open testRn/ios/testRn.xcodeproj and build with XCode's play button

or if the app already builded, start the webserver

npm start
//or
react-native start