Android developer portal with tools, libraries, and apps

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ReDex is an Android bytecode (dex) optimizer originally developed at Facebook. It provides a framework for reading, writing, and analyzing .dex files, and a set of optimization passes that use this framework to improve the bytecode. An APK optimized by ReDex should be smaller and faster than its source.

Apr 13, 2016
Promotion

A collection of quickstart samples demonstrating the Firebase APIs on Android.

Nov 12, 2017

A library for testing kotlinc compilation with kotlin annotation processors(kapt).

Jan 5, 2019

Android requires that these request come from an Activity. With Easy Permissions this is no longer an issue, you may request permission from anywhere as long as you provide Context. In addition, if you request a permission that is already granted the user will not be prompted.

May 8, 2017

Lottie is a mobile library for Android and iOS that parses Adobe After Effects animations exported as json with Bodymovin and renders them natively on mobile!

For the first time, designers can create and ship beautiful animations without an engineer painstakingly recreating it by hand.

Aug 29, 2017

A library that manages state using RxJava 2.

Sep 29, 2017

Markwon is a library for Android that renders markdown as system-native Spannables. It gives ability to display markdown in all TextView widgets (TextView, Button, Switch, CheckBox, etc), Notifications, Toasts, etc. No WebView is required. Library provides reasonable defaults for display style of markdown but also gives all the means to tweak the appearance if desired. All markdown features are supported (including limited support for inlined HTML code, markdown tables and images).

Aug 28, 2017

android-beacon-library is an Android library providing APIs to interact with beacons.

Feb 11, 2015

A web-based set of tools for generating graphics and other assets that would eventually be in an Android application's res/ directory.

Jul 5, 2014

RxJava is a Java VM implementation of Reactive Extensions: a library for composing asynchronous and event-based programs by using observable sequences.

It extends the observer pattern to support sequences of data/events and adds operators that allow you to compose sequences together declaratively while abstracting away concerns about things like low-level threading, synchronization, thread-safety and concurrent data structures.

Jul 5, 2014

This library chains animations and easily creates bunch of basic animations for android.

Dec 11, 2018

A light-weight sample how to visualize sound via Audio Visualizer for Android. Very simple and easy to understand. You can use it in your projects for free.

Mar 19, 2019

Statically typed programming language targeting the JVM and JavaScript.

100% interoperable with Java™

Jan 27, 2015

An integration Module for injecting Google Architecture Components' ViewModel into Dagger2-injected Android activities and fragments.

Sep 18, 2017

High quality, visual, open source tool to create, design, and edit database files compatible with SQLite.

Jul 5, 2014

AboutLibraries is a library to offer some information of libraries.

Jul 5, 2014

Neuronizer offers the opportunity to order your thoughts, ideas and tasks in categories to recognise the information you need as fast as possible.

Features

  • Add, remove and update notes
  • Add, remove and update ToDo lists
  • Sort everything as you wish
  • Designed for simple and fast usage
  • Encrypted storage of data, on device only
  • Create widgets
  • Categorisation in ToDo lists
  • Mark tasks as done
  • Add details to each task
  • Share ToDo lists
Oct 26, 2017

Cross-platform test runner written for Android and iOS projects.

Feb 25, 2019

PostMessageView helps you to create chat message view or a social media message view quickly like a typical chatting application or social post view Its a container view, so you can add any type of message or social post such as TextView or any customize TextView, ImageView, etc.

Mar 19, 2019
Announcement

This library will create vertical, horizontal parallax effect (and another effects) on android ImageView by using VerticalScrollParallaxImageView and HorizontalScrollParallaxImageView respectively. You can also create your own or apply custom effect by using and extending ViewTransformer then set it into ScrollTransformImageView

Apr 14, 2018

Tinder like swipeable card view for Android.

Aug 20, 2017

Easy and intuitive architecture pattern library for Android by Naver Corp.

Mar 17, 2019

A collection of static methods to perform various operations including color, device, drawable, package, tasks and sdk on Android 14+ (ICS or above) devices.

Jan 12, 2019

Android optimized event bus that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.

Jul 5, 2014

An Android TagView library. You can customize awesome TagView by using this library.

Jan 7, 2016

Python for android is a project to create your own Python distribution including the modules you want, and create an apk including python, libs, and your application.

Jul 18, 2014

A collection of easy to use and extendable DialogFragment's. Futures easy result handling and persistance on rotation with a minimum of code.

Offers common dialogs like alert dialogs, input dialogs with suggestions and validations, filterable single- and multi-choice dialogs, color pickers, date and time pickers and more.

Feb 12, 2017
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A demo XMMP android application using Android studio with SMACK Library.

Aug 1, 2016

JavaPoet is a Java API for generating .java source files.

Source file generation can useful when doing things such as annotation processing or interacting with metadata files (e.g., database schemas, protocol formats). By generating code, you eliminate the need to write boilerplate while also keeping a single source of truth for the metadata.

Jan 30, 2015

Nitrite is an open source embedded nosql database for Android. It has MongoDb like API.

It features:

  • Embedded key-value/document and object store
  • In-memory or single data file
  • Very fast and lightweight MongoDB like API
  • Indexing
  • Full text search capability
  • Full Android compatibility
  • Observable store
  • Both way replication via Nitrite DataGate server
Jun 6, 2017