Author

Thierry Vilmart

December 2023

Summary

A modern Android project using a Realm cache in an HTTP interceptor, using prefetching in parallel flows, and with a unit test of the parallel flow with turbine.

Interesting in this project:

• A unit test of a flatMergeMap parallel flow using turbine
• Compose with paging3 is used to page the lazy loading of a LazyColomn.
• Realm is used in an HTTP interceptor to support an offline mode.
• We fetch data and present it in a list and we can tap to open the detail page.
• 2 API points are used, one for the list, and one for the detail. The detail data is prefetched without delaying the display of the list
• Error handling is managed with a specific screen
• The result pattern design pattern is used.
• StateFlow is used to update the UI with observeAsState() in the compose component (similar to LiveData but without observing on the UI thread)
• the clean architecture is used with used cases, and repositories
• Dependency injection is used with Hilt, in the app, and in the test
• Additional filtering of duplicates was added in the Pager because the API was sending duplicates.