1. expo 설치
npm install -g expo-cli
2. 프로젝트 생성
expo init projectName
3. 빌드
expo build:android
expo build:ios
* 모듈설치 후 실행
react-native link
4. 네이티브코드로 변환
expo eject
https://docs.expo.io/versions/latest/expokit/eject/
5. 기본 UI
https://react-native-training.github.io/react-native-elements/
https://facebook.github.io/react-native/docs/flexbox
6. 데이터
7. 네비게이션
https://github.com/wix/react-native-navigation