All Algorithms implemented in Java

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.

An image loading and caching library for Android focused on smooth scrolling

ZXing ("Zebra Crossing") barcode scanning library for Java, Android

🔥 Android developers should collect the following utils(updating).

Telegram for Android source

🔥下拉刷新、上拉加载、二级刷新、淘宝二楼、RefreshLayout、OverScroll，Android智能下拉刷新框架，支持越界回弹、越界拖动，具有极强的扩展性，集成了几十种炫酷的Header和 Footer。

A Java serialization/deserialization library to convert Java Objects into JSON and back

Video players (IJKplayer, ExoPlayer, MediaPlayer), HTTPS, 16k page size, danmaku (bullet chat) support, external subtitles, support for filters, watermarks, and GIF screenshots, pre-roll and mid-ro…

RxJava bindings for Android

A fast dependency injector for Android and Java.

Powerful and flexible library for loading, caching and displaying images on Android.

A simple app to use Xposed without root, unlock the bootloader or modify system image, etc.

✔️ Simple, pretty and powerful logger for android

Android Transition animations explanation with examples.

Picture Selector Library for Android or 图片选择器

This is a picker view for android , support linkage effect, timepicker and optionspicker.（时间选择器、省市区三级联动）

🔥🔥🔥Banner 2.0 来了！Android广告图片轮播控件，内部基于ViewPager2实现，Indicator和UI都可以自定义。

Stetho is a debug bridge for Android applications, enabling the powerful Chrome Developer Tools and much more.

🎆 A well-designed local image and video selector for Android

Cute view animation collection.

Image Cropping Library for Android

android 4.4以上沉浸式状态栏和沉浸式导航栏管理，适配横竖屏切换、刘海屏、软键盘弹出等问题，可以修改状态栏字体颜色和导航栏图标颜色，以及不可修改字体颜色手机的适配，适用于Activity、Fragment、DialogFragment、Dialog，PopupWindow，一句代码轻松实现，以及对bar的其他设置，详见README。简书请参考：http://www.jianshu.c…

Multitask、MultiThread(MultiConnection)、Breakpoint-resume、High-concurrency、Simple to use、Single/NotSingle-process

An Android TabLayout Lib

An Android library that allows you to easily create applications with slide-in menus. You may use it in your Android apps provided that you cite this project and include the license in your app. Th…

Virtual Engine for Android(Support 14.0 in business version)

Project vlayout is a powerfull LayoutManager extension for RecyclerView, it provides a group of layouts for RecyclerView. Make it able to handle a complicate situation when grid, list and other lay…