Technology stack:

> Kotlin

> Coroutines + Flow

> Dagger 2

> MVVM

> Room

> Retrofit

> Jetpack navigation

> Composite delegate adapters

> Clean architecture

> Multimodularity

Test video.

Improving plans and problems:

> Page one: make whole screen as composite adapter(not every recycler view) - so improve performance

> Page two: sync photo and gallery recycler views

> Add nice night theme

> Give authorities of managing navigation bar functions to every fragment(not main activity)