Build demo React Native app, using Expo

For those with good experience of React Native.

• Create navigation and three screens:
1. Login Send user/pass and storing access token.
2. Either left to swipe navigation menu or bottom navigation menu.
3. List View Screen
4. Detail View Screen (Create/Edit/Delete)
• Add function to scan a barcode (will contain the PackageId/uuid) and open the Detail View
• Simple backend using node for token authentication and api data. This will be replaced, so it needs the minimal effort on this.
Implement Model for ‘Package’ for list/detail view:
• Id uuid
• PackageNumber int
• PackageType (Add an enum for Box, Carton, Letter) int
• Weight decimal
• Volume decimal
• Status (Add an enum for Pending, InProgress, InStorage) int

• Use whatever mainstream open source UI toolkit you like.
• Use the latest version of Expo/React Native

Example Login and List View Screen. Please make Detail View in a similar look.