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32685 Stars
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, google
24099 Stars
Android developers should collect the following utils.
May 15, 2017, Blankj
6425 Stars
Okio is a new library that complements and java.nio to make it much easier to access, store, and process your data.
Jul 5, 2014, square
5469 Stars
A huge set of utils for Android development.
Nov 6, 2015, wyouflf
5004 Stars
A lot of useful utils to work with database, bitmaps, HTTP, Views, etc.
Aug 8, 2014, wyouflf
4905 Stars
Android common lib, include ImageCache, HttpCache, DropDownListView, DownloadManager, Utils and so on.
Jul 5, 2014, Trinea
2904 Stars
An adaptation of the JSR-310 backport for Android.
Jul 4, 2015, JakeWharton
2390 Stars
This library is a version of Joda-Time built with Android in mind.
Jan 26, 2015, dlew
2025 Stars
jOOR stands for Java Object Oriented Reflection. It is a simple wrapper for the java.lang.reflect package.
Jun 29, 2015, jOOQ
1929 Stars
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, tdebatty
1774 Stars
VerbalExpressions is a Java library that helps to construct difficult regular expressions.
Jan 11, 2016, VerbalExpressions
1462 Stars
Stream API from Java 8 rewrited on iterators for Java 7 and below.
Jul 23, 2015, aNNiMON
1277 Stars
greenrobot-common provides general purpose utilities for Android and Java projects. Having its root in the early days of Android development, the library is minimalistic, tiny in size (jar < 100k), and focuses on efficiency and performance.
Jan 11, 2015, greenrobot
1240 Stars
android-utils contains a lot of useful utility classes for Android development.
Nov 18, 2015, jingle1267
1134 Stars
A small Android library to manage one-off operations for API 9 and higher.
Jul 29, 2015, jonfinerty
1084 Stars
Collection of source codes, utilities, templates and snippets for Android development.
Mar 12, 2016, petrnohejl
861 Stars
SNTP client for Android. Calculate the date and time "now" impervious to manual changes to device clock time.
Sep 19, 2016, instacart
389 Stars
Speed up your android development by removing boilerplate code.
Aug 23, 2017, gurleensethi
377 Stars
It makes a preview from an URL, grabbing all information (such as title, relevant texts and images).
Nov 10, 2015, LeonardoCardoso
234 Stars
Android port of Google's libphonenumber.
Jun 7, 2016, MichaelRocks
221 Stars
An easy way to persistence and run block codes only as many times as necessary on Android.
Jun 23, 2019, skydoves
213 Stars
Why use Holdr?
Aug 26, 2014, evant
145 Stars
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, WindSekirun
123 Stars
A lot of utility classes for Android development.
Aug 5, 2016, nisrulz
80 Stars
Mr. Alfonz is here to help you build your Android app, make the development process easier and avoid boilerplate code.
Apr 7, 2017, petrnohejl
80 Stars
Removes the noise from float streams using Kalman Filter. Useful to smoothen sensory data e.g.: gps location, or Accelerometer.
Oct 19, 2016, kibotu
65 Stars
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, thunder413
63 Stars
Fast and simple URL parsing for Java, with UTF-8 and path resolving support.
Feb 4, 2017, anthonynsimon
59 Stars
361000 becomes "6 minutes, 1 second"
Mar 22, 2019, mirrajabi
58 Stars
Use this library to safely create valid, correctly encoded URL strings with a fluent API.
May 26, 2015, palominolabs
41 Stars
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, pranavpandey
32 Stars
jraf-android-util is a collection of general purpose utilities for Android.
Nov 8, 2014, BoD
29 Stars
A Kotlin extensions + Utils library with Bunch of Help inbuild.
Mar 2, 2019, AmniX
26 Stars
Android file storage library with encryption and streaming support.
Jan 16, 2017, ragnor-rs
22 Stars
A simple and easy to use stopwatch library for android. With TimeIt, you can create a stopwatch app with very few lines of code!
Dec 12, 2018, yashovardhan99
15 Stars
Set of helpful utils for the Android platform.
Mar 5, 2017, universum-studios
13 Stars
DevBricks provides several classes which will be usually used in daily Android development. With these "bricks", your development will become:
Dec 21, 2016, dailystudio
12 Stars
Extend base components, use widgets, and call utility methods.
Dec 21, 2014, pushbit

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