Instabug SDK allows Android developers to receive detailed bug reports from users and testers directly from inside the app. It attaches screenshots, screen recordings, network requests, and reproduce steps with each bug report. This minimizes debugging time and helps developers in tracing weird bugs. Learn more.🚀
How to Use
Awesome-Android is an amazing list for people who need a certain feature on their app, so the best ways to use are:
CloudRail - Unified API Library for: Cloud Storage, Social Profiles, Payment, Email, SMS & POIs.
Data binding
Anvil978 72 - A small library to create reactive UI components, inspired by React. Provides data binding and event listener binding, fits well for MVVM.
Data Binding Library - Official Android Data Binding Library to write declarative layouts and minimize the glue code necessary to bind application logic and layouts.
Dependency Injection
Dagger 211k 1k - A fast dependency injector for Android and Java.
Butter Knife - View "injection" library for Android.
ActivityStarter315 19 - Android Library that provide simpler way to start the Activities with multiple arguments.
AndroidAnnotations1k 293 - Java annotations with dependency injection at compile time.
Toothpick430 75 - A scope tree based Dependency Injection (DI) library for Java.
Android Services
Remoter - An alternative to Android AIDL for Android Remote IPC services using plain java interfaces.
Service Connector - Bind Android services and callbacks to fields and methods.
JustWeEngine715 123 - An easy open source Android Native Game FrameWork.
Security
libsignal-protocol-java - A ratcheting forward secrecy protocol that works in synchronous and asynchronous messaging environments.
GUI
Pull to refresh - A swipe refresh layout is available in the v4 support library.
Cardslib5k 2k - Android Library to build a UI Card.
AndroidStaggeredGrid5k 1k - Grid view which supports multiple columns with rows of varying sizes.
Flow3k 293 - Library that helps with describing an app as a collection of moderately independent screens.
SortableTableView777 189 - An Android library containing a simple TableView and an advanced SortableTableView providing a lot of customisation possibilities to fit all needs.
MaterialProgressBar1k 215 - Material design ProgressBar with consistent appearance.
AndroidFillableLoaders2k 250 - Fillable progress view working with SVG paths. Nice option too for creating interesting app logos.
NexusDialog19 3 - Allows you to easily and quickly create forms in Android with little code.
Snap RecyclerView Utils75 13 - Populate Single or multiple Layout RecyclerView without creating an Adapter.
DotLoader87 18 - A customizable loading animation with Dots.
PodSlider82 24 - A customizable slider widget adhering to material design specs.
TapTargetView3k 332 - An implementation of tap targets from the Material Design guidelines for feature discovery.
ShowCaseView24 6 - The ShowcaseView library is designed to highlight and showcase specific parts of apps to the user with a attractive and flat overlay.
MaterialIntroScreen2k 247 - Material Intro Screen implementation with easily extensible API.
FloatingView1k 178 - FloatingView can make the target view floating above the anchor view with cool animation.
InputMask385 38 - Pattern-based user input formatter, parser and validator.
Loading Images
Picasso15k 4k - A powerful image downloading and caching library for Android.
Universal Image Loader17k 8k - Asynchronous, out of the box loading and caching of images.
Glide20k 4k - An image loading and caching library for Android focused on smooth scrolling, Recommended by Google.
Fresco15k 4k - An Android library for managing images and the memory they use.
Glide Bitmap Pool239 38 - Glide Bitmap Pool is a memory management library for reusing the bitmap memory.
MediaPicker62 23 - Android Library that lets you to select multiple images, video or voice for Android
Video
ijkplayer17k 5k - Android/iOS video player based on FFmpeg n3.2, with MediaCodec, VideoToolbox support.
Exoplayer10k 3k - ExoPlayer is an application level media player for Android, allow playing audio and video both locally and over the Internet.
Supports features like Dynamic adaptive streaming over HTTP (DASH), SmoothStreaming and Common Encryption
Easy-Video-Player857 203 - Easy Video Player is very simple and easy to use in our app.
VideoPlayView42 5 - Custom Android view with video player, play/stop, loader and placeholder image.
Camera
MagicalCamera200 44 - Simple way to take or select photos of your gallery, with other features for manage pictures.
Field Validation
Convalida11 2 - A simple and annotation-based way to validate your input fields.
JSON
Gson10k 3k - Gson is a Java library used for serializing and deserializing Java objects from and into JSON.
HockeyApp - Distribution, Crash Reports, Feedback and Analytics
Splunk MINT - Monitoring, Crash Reports, Real time data, Statistic.
Bugsnag - Cross platform error monitoring. Free tier. Support for SDK & NDK. Error reports include data on device, release, user, and allows arbitrary data.
Sugar ORM - Insanely easy way to work with Android Databases.
DBFlow4k 694 - Fast and powerful ORM with compile-time annotation processing.
NexusData27 8 - Object graph and persistence framework for Android.
SimpleNoSQL424 55 - A simple NoSQL client for Android. Meant as a document store using key/value pairs and some rudimentary querying. Useful for avoiding the hassle of SQL code.
RxSimpleNoSQL34 1 - Reactive extensions for SimpleNoSQL. Manipulate entities using Observables.
REST
Retrofit - Retrofit turns your REST API into a Java interface.
Robotium - Test automation framework for black-box UI tests.
Roboletric - Unit test framework to run tests inside the JVM on your workstation, not in the emulator.
AssertJ Android2k 191 - AssertJ assertions geared towards Android.
Green Coffee168 20 - Run your Cucumber tests in your Android instrumentation tests.
Tracking
MobileAppTracking - Tracking your marketing campaigns across multiple ad networks.
Mixpanel - Analytics platform to analyze the users.
Countly - Open source mobile & web analytics, push notifications and crash reporting platform, based on Node.js, MongoDB and Linux.
CleverTap - Analytics platform and user-engagement platform with 1 million free events
Maps
Google-Directions-Android685 304 - Allows you to calculate the direction between two locations and display the route on a Google Map using the Google Directions API.
Android Maps Extensions370 122 - Extending capabilities of Google Maps Android API v2, adding marker clustering among other things
MapScaleView35 11 - Scale bar for Google Maps Android API
ADB Enhanced - a command-line wrapper around ADB for developers, so that, developers don't have to remember esoteric version-dependent commands
Pidcat3k 384 - a colored command-line ADB wrapper that only shows log entries for a specific application package
Wireless
SmartGattLib233 73 - Simplifies the work with Bluetooth SMART devices (a.k.a. Bluetooth Low Energy in Bluetooth 4.0).
Chat & Messaging
Applozic Android Chat SDK450 203 - Android Chat and Messaging SDK for adding real time chat and in-app messaging into your android application.
Qiscus SDK122 48 - Qiscus SDK is a lightweight and powerful android chat library. Qiscus SDK will allow you to easily integrating Qiscus engine with your apps to make cool chatting application.
Custom Dialog
MediaRecorderDialog40 5 - Custom Dialog to record audio, store it and play it in your phone.
HijriDatePicker34 18 - offers a hijri (Islamic Calendar) Date Picker designed on Google's Material Design Principals For Pickers.
Noty - A simple library for creating animated alerts/dialogs/warnings.
Version Checking
AppUpdater935 186 - comprehensive and feature rich library, including support for checks at Amazon and FDroid.
Gandalf268 34 - comprehensive features and a "companion" iOS solution.
Siren69 14 - focused feature set that mimicks the popular iOS library of the same name. Supports Play and Amazon.
Fit38 2 - version checking callback framework with no UI.
Joda-Time Android2k 167 - Joda-Time library with Android specialization.
True Time498 44 - Android NTP time library. Get the true current time impervious to device clock time changes.
Runtime Permissions
Permission Dispatcher1k 178 - Simple annotation-based API to handle runtime permissions.
RxPermissions4k 483 - Android runtime permissions powered by RxJava.
NoPermission67 11 - Simple Android library for permissions request. Consists of only one class.
Other
Android Support library - The Android Support Library package is a set of code libraries that provide backward-compatible versions of Android framework API.
Google Play Services - Library to access Google services, such as account syncing, Google+ (sharing, single sign-on), Google Maps, Location APIs, Google Play Games, Cloud Messaging, Android Device Manager, and others.
Tape2k 298 - A lightning fast, transactional, file-based FIFO for Android and Java.
Guava: Google Core Libraries for Java24k 6k - Collections, caching, primitives support, concurrency libraries, common annotations, string processing, I/O, and so forth.
Android Scripting1k 595 - Allows to run scripting languages on Android.
Android Priority Job Queue2k 291 - Implementation of a Job Queue to easily schedule jobs (tasks) that run in the background, improving UX and application stability.
RateMeMaybe - Asks the user if (s)he wants to open the Play Store to rate your application.
Easy Rating Dialog95 25 - Lib provides a simple way to display an alert dialog for rating app.
RxJava34k 7k - RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
RxBinding6k 746 - RxBinding – RxJava binding APIs for Android UI widgets from the platform and support libraries.
Caffeine439 43 - A collection of utility classes that help make Android development faster.
AboutLibraries2k 322 - Automatically generates an About this app section, with a list of used libraries.
AudioPlayerView81 14 - A view that loads audio from an url and have basic playback tools.
andle43 7 - command line tool help you sync dependencies, sdk or build tool version.
Typography41 3 - An Android library that makes it easy to use custom fonts in views.
Calligraphy7k 919 - Custom fonts in Android an OK way.
transai44 4 - command line tool help you manage localization string files.
Android-Link-Preview220 61 - It makes a preview from an url, grabbing all the information such as title, relevant texts and images.
Developing for Android - A series of articles from Googler Chet Hasae and others, answering most commonly asked question: "What are some of the important rules to keep in mind when developing Android applications?".
Google Developers Training - Google Developers Official Training page has list of various useful learning resources for beginner as well seasoned developer.
Podcast
Fragmented is the Android developer podcast where Donn Felker and Kaushik Gopal talk about building good software and becoming better Android developers.
Android Developers Backstage is a podcast by and for Android developers. Hosted by developers from the Android engineering team, this show covers topics of interest to Android programmers, with in-depth discussions and interviews with engineers on the Android team at Google.
Android Dialogs is a video based podcast, where they have bite-sized conversations with people from the Android community.
Android Intelligence features in-depth interviews with interesting people from the Android world.
The Context488 26 a podcast about Android Development with Hannes Dorfmann, Artem Zinnatullin and wonderful guests!
My personal recommendation is (for now) to use the android api to build a native app. Scala can help to build this native apps with cleaner code but it adds to many methods (Multidex required). Kotlin is a modern language with 100% interoperatibility with java projects without multidex. But there are also use cases where alternatives like cross-platform development can be useful.
C#
Xamarin - Framework to create native iOS, Android, Mac and Windows apps in C#.
HTML, CSS and Javascript
PhoneGap - Open source framework by Adobe to create cross platform mobile apps using HTML, CSS, and JavaScript.
Titanium - Open-source framework to create 'native' cross platform apps using JavaScript.
NativeScript - An open-source framework to build native iOS and Android apps with JavaScript from a single code base.
React Native69k 18k - A framework for building native apps with React by Facebook.
Ionic Framework - A framework to build hybrid apps with mobile-optimized HTML, CSS and JS with AngularJS.
Apache Cordova2k 1k - Cordova based applications are, at the core, applications written with web technology: HTML, CSS and JavaScript.
Capacitor327 14 - Build cross-platform Native Progressive Web Apps for iOS, Android, and the web. Very promising Cordova alternative.
Lua
Corona SDK - Framework to create native iOS and Android Apps (especially Games).
Scala
Scaloid2k 197 - Library for less painful Android development with Scala.
Macroid210 25 - A modular functional UI language for Android.