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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
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Android developers should collect the following utils.

May 15, 2017

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

A huge set of utils for Android development.

Nov 6, 2015

A lot of useful utils to work with database, bitmaps, HTTP, Views, etc.

Aug 8, 2014

An adaptation of the JSR-310 backport for Android.

Jul 4, 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

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

Jun 29, 2015

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

Jan 11, 2016

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

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

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

Mar 12, 2016

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

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
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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

Fast and simple URL parsing for Java, with UTF-8 and path resolving support.

  • Easy to use API - you just want to parse a URL after all.
  • Fast, 4+ million URLs per second on commodity hardware.
  • UTF-8 encoding and decoding.
  • Supports path resolving between URLs (absolute and relative).
  • Supports IPv4 and IPv6.
  • No external dependencies.
Feb 4, 2017

361000 becomes "6 minutes, 1 second"

Mar 22, 2019

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

A helper library to ease the most repetitive codes with simple reusable attributes.

AKUAH can help you with many repetitive tasks of daily life development.

I am using this library in my own projects from quit a time. Now I decided to share in for public use. I have not implemented all the features I used to have in my old library but will keep adding them and some new features.

Mar 7, 2017

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

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

Dec 24, 2018

jraf-android-util is a collection of general purpose utilities for Android.

Nov 8, 2014

Extend base components, use widgets, and call utility methods.

Dec 21, 2014

ShortRoid Library makes it easier to use different functionalities of android. Main objective is to simplify android code and make the development process faster. ShortRoid being open source encourages contributers to contribute and make it more fun for the developers to develop android apps using ShortRoid.

Oct 3, 2016

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
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A lot of utility classes for Android development.

Aug 5, 2016

Predictable state container library for Java/Android.

Sep 26, 2016