Android Library : Top Coolest Library for Android native

Android Library : Best Android-Native Library to Use & Make Efficient Application 


This is a beautiful local images and videos selector. Main functionalities:
  • Selecting images including JPEG, PNG, GIF and videos including MPEG, MP4,
  • applying custom themes, including two built-in ones,
  • different image loaders,
  • defining custom filter rules,
  • fully operational within Activities and Fragments.
You can find more in the lib’s wiki.

Spruce Android Animation Library

Spruce is a lightweight animation library that helps choreograph the animations on the screen. With so many different animation libraries out there, developers need to make sure that each view is animating at the appropriate time. Spruce can help designers request complex multi-view animations and not have the developers cringe at the prototype.


Chips were presented in Material Design. They
represent complex entities in small blocks, such as a contact. A chip may contain entities such as a photo, text, rules, an icon, or a contact.
MaterialChipsInput is an implementation of that component for Android. The library provides two views : ChipsInput and ChipView.


This library helps you to add more meaningful shadow to your images. According to README, it is
More exquisite shadow effect, used in some special scene to enhance the user experience.
Also, it is easy to use.


This library allows to create multiple animations based on points. Take a look — how smooth and beautiful animations you can make quite easily. READMEcontains a lot of examples so you might check it here.


Litho is not a library, it is a framework. A really powerful framework to build UI in a declarative way. It was developed by Facebook devs, so even if you do not want to try it, still it is worthy to observe and follow a development process.

Main features include:
  • using a declarative API to define UI components. You simply describe the layout for your UI based on a set of immutable inputs and the framework takes care of the rest.
  • Asynchronous layout: Litho can measure and layout your UI ahead of time without blocking the UI thread.
  • View flattening: Litho uses Yoga for layout and automatically reduces the number of ViewGroups that your UI contains.
  • Fine-grained recycling: Any component such as a text or image can be recycled and reused anywhere in the UI.

Adaptable Bottom Navigation

Some time ago Google updated Material Design guideline, and introduced bottom navigation bars, as one of several good UI patters to follow in our apps. They also added the implementation to the Design Support Library.

Adaptable Bottom Navigation can easily replace BottomNavigationView from Support Library. It is implemented in the way how ViewPager and TabLayoutwork. This is a short explanation from Buffer team:
As mentioned, when using the Bottom Navigation View from the Android Support Library, there can be a lot of boilerplate code for the switching of views. Because of this, we took inspiration from the TabLayout setupWithViewPager() method and created a custom ViewSwapper component that can be attached to a Bottom Navigation View to simplify the management of view display.
You can read more on Github. There is a quite comprehensive documentation and explanation why it was implemented (tip: clean architecture 🚀 ).


This library allows you to implement pattern locking mechanism in your app easily and quickly. It is very easy to use and there are plenty of customization options available to change the functionality and look-and-feel of this view to match your needs.
It also supports RxJava 2 view bindings, so if you are a fan of reactive programming (just like me), you can get a stream of updates as the user draws the pattern.
The README is full of examples, so it is easy to start with the library.


This is a library which helps to draw isometric shapes. In my opinion, it is one of the coolest libraries in that list, as it reminds me of Monument Valleygame.
The library supports drawing multiple shapes, paths and complex structures, like the example below.


We can treat this library as a ViewPager extension that encapsulates many features, mainly to provide a unified solution for multi-page switching scenarios.

UltraViewPager supports:

  • horizontal scrolling and vertical scrolling,
  • multi views in one ViewPager
  • switching views circularly. For example, if there are 3 views to display in a ViewPager, it should switch back to the first view after the third view,
  • auto-scrolling feature (implemented timer using Handler),
  • setting max-height and max-width,
  • setting the aspect ratio,
  • indicating the view we are currently (circle and icon),
  • built-in two kinds of page transition animations.
This library has a good documentation as well.



This is a library which we can consider as a DrawerLayout-like ViewGroup, where a drawer is hidden under the content view, and then can be shifted to make the drawer visible. REAMDE is quite comprehensive and it is worthy to check for sure.


It is just a view where you can type your password. But fancy one!


This library allows to represent sound as a gradient colored visualisation.


This is a highly configurable widget for image cropping. The library has a modular architecture, which makes it highly configurable. For the info on how to configure CropIwaViewrefer to the wiki on Github.


This is a second framework on that list. It is responsible for image compression and it is quite powerful. Also, it
uses asynchronous thread pool to compress image, and will hand out the result in the main thread when compression is completed.

Effects of compression

Tiny - an image compression


This library provides a custom TextView widget, which can create text from particles using a variety of animation effects and configuration properties.


This a fresh library and still in beta, but it does a really cool thing — it changes your theme dynamically with Rx support! According to the author, this is
A fast and easy to use plug-and-play dynamic theme engine. Powered by Rx, for Android apps.
The documentation is really good, comprehensive and definitely worthy to check out.

 # EasyCalendar

This is an easy custom calendar widget. Main features include:
  • Custom layout for title,
  • custom layout for date,
  • show or hide divider for date,
  • show or hide overflow date,
  • listen to date’s view be clicked.
The documentation is comprehensive and the library is easy to use.


This library provides two rating bars:
  • BaseRatingBar — without any animation,
  • ScaleRatingBar — with a progressive and scale animation.
You can see them in a gif below:


This library is advertised as the simplest navigation library for Android, but you need to check if it is worthy for you to use it.
Main features:
  • Navigation is as simple as calling goTo(screen) method,
  • you get full control of the backstack,
  • transitions are automatically handled for you.
It has comprehensive wiki with all explanations needed.


This is quite cool library. It adds a shadows to your images, but the color of shadow is in a dominant image color.

Documentation is quite poor but I think the code is self-explanatory.


This is a refresh animation that opens a camera shutter. In my opinion it is really worthy to check, especially in README there is a mathematical analysis, how to achieve this effect!


Some say he’s half man half fish, others say he’s more of a seventy/thirty split. Either way he’s a fishy bastard. Google



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