1. ios tabs https://github.com/ChenYilong/CYLTabBarController
2. rn
https://github.com/itinance/react-native-fs operation documents
https://github.com/react-native-community/react-native-camera camera has a two-dimensional code scanning
1. ios tabs https://github.com/ChenYilong/CYLTabBarController
2. rn
https://github.com/itinance/react-native-fs operation documents
https://github.com/react-native-community/react-native-camera camera has a two-dimensional code scanning