Awesome
BitfinexClient
An android app that showing the details of the BTC/USD currency pair, at real-time:
- a summary (current price, price change, volume, low, high) - ticker
- a table with the order book
MVVM pattern with Clean architecture developed with Kotlin.
Clean architecture consists of three layers:
- Data, includes data objects, databases, network clients, repositories.
- Domain, includes use cases of business logic. This layer orchestrates the flow of data from Data Layer to Presentation and the other way.
- Presentation, includes UI related components, such as ViewModels, Fragments, Activities.
Each layer has its own entities/models which are specific to that package. Mapper is used for conversion of one layer to another.
Android Jetpack Components used:
- Activity
- Fragment
- ViewModel
- LiveData
- View Binding (used to replace
findViewById
and synthetic binding) - Data Binding (used for Layouts and binding expressions), example: binding expression
- ActivityScenario, for instrumentation test (part of AndroidX Test)
- Espresso
Libraries:
-
Koin, an easy-to-use DI framework. Nice comparison with Dagger
-
Scarlet, a Retrofit inspired WebSocket client, manages the client-server connection for you. It makes use of a StateMachine to handle WebSocket connection correctly. Developed by Tinder, and has been in production for more than one year.
-
OkHttp, an HTTP client for Android and Java applications
-
moshi, JSON library for Kotlin and Java
-
Timber, a logger which provides utility on top of Android’s Log class
Screenshots:
<img src="https://user-images.githubusercontent.com/12731470/63213580-561db080-c10e-11e9-8369-687245facb11.png" width="400">Sources: