Medusa is a Fragment navigator library for your Single Activity - Multi Fragment applications. It keeps track of fragment history of every tab and you simply call start and goBack to navigate your fragments.
StateLayout is a simple-use Android layout library which handles Loading, Content and Error/Info states for the activity/fragment/view.
Showcase is a tooltip library. It will highlight the view and show tooltip on it. You can customize title and description text fields, backgrounds and arrow positions. Also you can have callback when user quits from Showcase.
UI Components for Android by Trendyol Android team. UI Components includes several custom views for Android platform to make developers life easier!
MapsKit is a all-in-one library that supports both HMS and GMS maps.