Android developer portal with tools, libraries, and apps

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Announcement

The Guava project contains several of Google's core libraries that we rely on in our Java-based projects: collections, caching, primitives support, concurrency libraries, common annotations, string processing, I/O, and so forth.

Jul 5, 2014

Android developers should collect the following utils.

May 15, 2017

A huge set of utils for Android development.

Nov 6, 2015

Okio is a new library that complements java.io and java.nio to make it much easier to access, store, and process your data.

Jul 5, 2014

An adaptation of the JSR-310 backport for Android.

Jul 4, 2015

jOOR stands for Java Object Oriented Reflection. It is a simple wrapper for the java.lang.reflect package.

Jun 29, 2015

Android common lib, include ImageCache, HttpCache, DropDownListView, DownloadManager, Utils and so on.

Jul 5, 2014

This library is a version of Joda-Time built with Android in mind.

Jan 26, 2015

Implementation of various string similarity and distance algorithms: Levenshtein, Jaro-winkler, n-Gram, Q-Gram, Jaccard index, Longest Common Subsequence edit distance, cosine similarity...

Aug 7, 2016

SNTP client for Android. Calculate the date and time "now" impervious to manual changes to device clock time.

Sep 19, 2016

VerbalExpressions is a Java library that helps to construct difficult regular expressions.

Jan 11, 2016

Collection of source codes, utilities, templates and snippets for Android development.

Mar 12, 2016

An easy way to persistence and run block codes only as many times as necessary on Android.

Jun 23, 2019

Android port of Google's libphonenumber.

Jun 7, 2016

Why use Holdr?

  • Because you hate typing findViewById() all the time.
  • Because Butterknife requires non-zero boilerplate and doesn't work well in library projects.
  • Because view holders are cool, but a pain to write.
Aug 26, 2014

It makes a preview from an URL, grabbing all information (such as title, relevant texts and images).

Nov 10, 2015

Kurl is a library that implements, structures, modularizes and provides testability for APIs implementations. It is designed to turn basic strings (and URLs) operations into consistent and idiomatic Kotlin code.

Kurl is designed from the ground up to perform all the heavy work, leaving you with higher level abstraction and business logic.

Kurl stands for Kotlin Url Repolishing Library. The name is inspired by cUrl.

Jan 24, 2020

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
Announcement

A small Android library to manage one-off operations for API 9 and higher.

Some things should happen once:

  • Users should only get the guided tour once.
  • Release notes should only pop up once every app upgrade.
  • Your app should only phone home to update content once every hour.
Jul 29, 2015

Stream API from Java 8 rewrited on iterators for Java 7 and below.

Includes:

  • Functional interfaces;
  • Stream (without parallel processing);
  • Optional class;
  • Objects from Java 7.
Jul 23, 2015

A lot of utility classes for Android development.

Aug 5, 2016

A small and useful set of Android utility classes written in Kotlin to reduce boilerplate.

Dec 24, 2018

Helper class to provide resources - ContextCompat, ResourcesCompat, AnimationUtils, Context.resources - all in one place! 🤩🥳

Oct 21, 2019

reflection-no-reflection is a proof on concept to create an API that is 100% compatible reflection API, but without any reflection. Performance stuff for Android and Java.

Dec 24, 2014

Adroit is a smart way to develop android applications. Enhance your application development skills by providing safe checks and speed up development process.

Dec 13, 2014

A Kotlin extensions + Utils library with Bunch of Help inbuild.

AmniXTension = AmniX's Tension Which Means No Tension to Developers, AmniXTension is Here.

Mar 2, 2019

Never again need a .utils. package yur scurvy sea dogs!

Jul 5, 2014

This library offers some barebone code for android common to most applications. It provides simple classes and pre-written functions for:

  • Internet Access
  • SharedPreferences storage and retrieval
  • ImagePicker and Bitmap operations
  • File read and write
  • Recycler View
  • Image Downloading
  • Database support
  • Json Parsing
Mar 1, 2016
Announcement

Use this library to safely create valid, correctly encoded URL strings with a fluent API.

May 26, 2015

Tempo is a Kotlin library for Android to get the current time from multiple sources: SNTP, GPS; or your own time source.

Jul 8, 2017