- Mozilla Rhino (Utility)
requires 1 permissions: android.permission.INTERNET 
open-source implementation of JavaScript written entirely in Java.
- Android Support v4 (Development Framework)
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see
Understanding the Android Support Library.
- Arch (Utility)
helper for other arch dependencies, including JUnit test rules that can be used with LiveData.
- AppCompat (Utility)
support newer Android features on older Android versions.
- Constraint Layout Library (Utility)
library to reduce the number of nested views needed.
- Androidx Core (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
- Documentfile (UI Component)
a library to view a file document.
- androidx.legacy (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
- Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
- Loader (Utility)
library to load data for your UI that survives configuration changes.
- Media (Utility)
share media contents and controls with other apps.
- Preference (Utility)
a library to build interactive settings screens without needing to interact with device storage or manage the UI.
- Print (Utility)
a library to print photos, docs, and other graphics and images.
- Room (Utility)
a persistence library that provides an abstraction layer over SQLite to allow for more robust database access while harnessing the full power of SQLite.
- Sqlite (Utility)
library that contains abstract interfaces along with basic implementations which can be used to build your own libraries that access SQLite.
- Transition (UI Component)
animates motion in the UI with starting and ending layouts.
- Vectordrawable (UI Component)
AndroidX library to render vector graphics.
- Glide (Utility)
An image loading and caching library for Android focused on smooth scrolling
- YoutubeJExtractor for Android (Utility)
- ExoPlayer (Utility)
an extensible media player library for Android
- Google Material Design (Utility)
library to help with material design guidelines.
- named-regexp (Utility)
a lightweight library that adds support for named capture groups in Java 5/6 (and on Android).
- Google Gson (Utility)
A Java serialization/deserialization library to convert Java Objects into JSON and back.
- RxBinding (Utility)
RxJava binding APIs for Android's UI widgets.
- Android Sliding Up Panel (UI Component)
library to add a draggable sliding up panel (popularized by Google Music and Google Maps).
- OkHttp (Utility)
OkHttp is an HTTP+HTTP/2 client for Android and Java applications.
- RxJava (Utility)
RxJava (Reactive Extensions for the JVM) is a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
- OkHttp okio Framework (Utility)
A modern I/O API for Java to make it much easier to access, store, and process your data.
- Joda Time (Utility)
provides a quality replacement for the Java date and time classes.
- Reactive Streams (Utility)
provide a standard for asynchronous stream processing with non-blocking back pressure.
- Retrofit (Utility)
Type-safe HTTP client for Android and Java by Square, Inc.
Anti-Features: 
