Working with api was realized using Retrofit + OkHttp. For refreshing token was used MainIntercaptor (it implements both Interceptor and Authenticator interfaces).
Api was separated to MainApi and MainRefreshApi to avoid dependencies cycle like: OkHttp -> MainInterceptor -> MainApi -> OkHttp.
Main screen was realised using dynamic features (install-time). Working with WebSocket was realised using OkHttp.WebSocket.
- Clean architecture
- MVVM
- Dynamic features (Profile, Transactions are dynamic features)
- DI: Hilt (app) and Dagger2 (feature modules)
- Coroutines
- LiveData (View model / fragment)
- Navigation component (+ for dynamic features)
- Retrofit + OkHttp
- Gson
- Splash screen (for startup activity)
- Tests
- Avoid fragments recreation when switching
- Network errors distinguish and handling
- Rewrite subscribing to
Transactionevents from listeners to coroutinesStateFlows(it was implemented usingMutableStateFlow, but for some reason it had crashed without stacktrace. This bug was fixed in1.4.3version of coroutines. And it can be rewritten)