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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
Promotion

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

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

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

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

Sep 19, 2016

Speed up your android development by removing boilerplate code.

Current Features:

  • RecyclerUtils - Remove the need to make an adapter everytime, set up recycler adapter in as little as 4 lines.
  • ScrollUtils - Easily hide/show FloationActionButton on scroll when using RecyclerView or NestedScrollView.
  • ToastUtils - Creating toasts are just a function away.
  • SPUtils - Simple DSL for Shared Preferences.
  • ValidatorUtils - Fast and simple text validation.
  • LogUtils - Simple and easy android logging.
Aug 23, 2017

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

Mar 12, 2016

This library is a package of functions that let you manipulate objects and or java date string. It combines the most common functions used when managing dates under android, such as converting a mysql / sqlLite date to a Date object and vis-versa, etc.

Jun 15, 2017

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

361000 becomes "6 minutes, 1 second"

Mar 22, 2019
Commercial

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

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

Dec 24, 2018

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

Removes the noise from float streams using Kalman Filter. Useful to smoothen sensory data e.g.: gps location, or Accelerometer.

Oct 19, 2016

Utilities and operators for LiveData.

May 12, 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

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

Dec 21, 2014

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

Be sure that your user is awake before disturbing it with soundy and vibrant notifications!

Before this library, QuitNow! and lots of apps were sending notifications when the user was sleeping... and HEY! That makes people angry.

Jan 8, 2016

Android port of Google's libphonenumber.

Jun 7, 2016
Announcement

Advancement Utils for Android Developer with 100% interoperable with Java, written by Kotlin. RichUtils help Android developer to make better application with clean code.

Jun 8, 2017

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