Some useful libraries, samples, tools & Open Source apps for Android Collection if libraries starred during some years of Android Development. Here is the definitely list of android Open Source libraries
* In titles means it has been categorized more than once (in different categories)
LIBRARIES
UI Widgets TextView Button EditText ImageView ProgressBar ListView ViewPager SeekBar GridView ScrollView ActionBar Sliding Views Other Dialogs & Pickers Toasts Animation Parallax Other Maps Validation Camera Charts Other Location Social DB & Preferences ContentProvider / ContentResolver / Cursor Preferences Other
IO Network Event Bus Tasks Open GL Dependency Injection Testing Reverse Engineering Bluetooth Scan File Pickers
EXAMPLES
Network Tasks Dependency Injection
TOOLS
Proguard Testing Log Localization
OPEN SOURCE APPS
Camera P2P Chat Pedometer NFC Media Other
Title
Description
AutoFit TextView A TextView that automatically resizes text to fit perfectly within its bounds
Token AutoComplete Gmail style MultiAutoCompleteTextView for Android
Android RobotoTextView Implementation of a TextView and all its direct/indirect subclasses with native support for the Roboto fonts, includes the brand new Roboto Slab fonts
Android Ago An Android TextView that always displays an auto refreshing relative time span with respect to a reference time
Timely TextView Animated TextView like Timely app
Email AutoComplete TextView An AutoCompleteTextView optimized for email auto-complete
Shimmer Android An Android TextView with a shimmering effect
Titanic Android experiment showing a sinking TextView
Blink TextView Remember the '90s? Geocities? Blinking text? Dat. On Android
Secret TextView A TextView that simulates the effect from the app Secret where the characters fade in/out at different speeds
Title
Description
Ken Burns View Android ImageViews animated by Ken Burns Effect
PhotoView Implementation of ImageView for Android that supports zooming, by various touch gestures
Circle ImageView A circular ImageView for Android
Custom Shape ImageView Custom shape ImageView using PorterDuffXfermode with paint shapes and SVGs
Rounded ImageView a fast ImageView that supports rounded corners and ovals or circles
Flip ImageView Small android lib allowing you to make a flip imageview easily, by extending FlipImageView
Glide An image loading and caching library for Android focused on smooth scrolling
Circular ImageView Custom view for circular images in Android while maintaining the best draw performance
Title
Description
Flabby ListView Android library to display a ListView which cells are not rigid but flabby and react to ListView scroll and touch events
Dob List DobLis is an Open Source Android library that provides to ListView adding ProgressBar (or any view) to the footer of ListView to be shown in loading more, and callback that is called when reaching last item in ListView
Android Swipe ListView An Android List View implementation with support for drawable cells and many other swipe related features
Multi Choice Adapter A ListView adapter with support for multiple choice modal selection
Jazzy ListView JazzyListView is an extension of ListView designed to animate list item views as they become visible
ListView Animations An Android library which allows developers to easily add animations to ListView items
Slide Expandable ListView A better ExpandableListView, with animated expandable views for each list item
Swipe ListView An Android List View implementation with support for drawable cells and many other swipe related features
Super ListView Way more than just a listview
Title
Description
Start Point SeekBar StartPointSeekBar is a custom view for the Android platform that makes it possible to have a SeekBar to have custom start point
Title
Description
Not Boring ActionBar News Stand app makes the ActionBar not boring!
Glass ActionBar A library that adds a glass-like effect to the action bar
Fading ActionBar Android library implementing a fading effect for the action bar, similar to the one found in the Play Music app
ActionBar PullToRefresh A modern implementation of the pull-to-refresh interaction for #android
Refresh Action Item An action bar item which acts both as a refresh button and as a progress indicator
Title
Description
Android FlipView A small, easy to use android library for implementing flipping between views as seen in the popular Flipboard application
Android Flip A component for flip animation on Android, which is similar to the effect in Flipboard iPhone/Android
Android PDF View A fast PDF reader component for Android development
Android ViewBadger A simple way to "badge" any given Android view at runtime without having to cater for it in layout
Quilt View Library QuiltView displays views of different sizes in a scrollable grid
FreeFlow A layout engine for Android that decouples layouts from the View containers that manage scrolling and view recycling. FreeFlow makes it really easy to create custom layouts and beautiful transition animations as data and layouts change
Draggable Panel Android library used to create an awesome Android UI based on a draggable element similar to the last YouTube graphic component
Android Reside Menu The idea of ResideMenu is from Dribbble 1 and 2. It has come true and run in iOS devices. iOS ResideMenu This project is the RefsideMenu Android version. The visual effect is partly referred to iOS version of ResideMenu
ShowCase View Highlight the best bits of your app to users quickly, simply, and cool. http://amlcurran.github.io/ShowcaseView/
Foldable Layout Android widgets to implement folding animation
Image Layout Android - A layout that arranges its children in relation to a background image
Swipeable cards A native library providing a Tinder-like cards effect. A card can be constructed using an image and displayed with animation effects, dismiss-to-like and dismiss-to-unlike, and use different sorting mechanisms
Title
Description
Update Checker Increase your app's updates
Android Style Dialogs A simple library for styling Android dialogs in the Holo theme. It also removes boilerplate code for displaying simple dialogs
DateTime Picker DateTimePicker is a library which contains the beautiful DatePicker that can be seen in the new Google Agenda app
Recurrence Picker Google Calendar Recurrence picker
Title
Description
Motion An Android library allowing images to exhibit a parallax effect
Parallax Pager Add some depth to your Android scrolling
Title
Description
Android Sliding Up Panel *Android Sliding Up Panel Demo
Android FlipView *A small, easy to use android library for implementing flipping between views as seen in the popular Flipboard application
Android Flip *A component for flip animation on Android, which is similar to the effect in Flipboard iPhone/Android
Flabby ListView *Android library to display a ListView which cells are not rigid but flabby and react to ListView scroll and touch events
FreeFlow *A layout engine for Android that decouples layouts from the View containers that manage scrolling and view recycling. FreeFlow makes it really easy to create custom layouts and beautiful transition animations as data and layouts change
Ken Burns View *Android ImageViews animated by Ken Burns Effect
Draggable Panel *Android library used to create an awesome Android UI based on a draggable element similar to the last YouTube graphic component
DobSliding *DobSliding is an Open Source Android library that allows developers to develop applications with vertical sliding menus just like the Android notifications menu
Jazzy ListView *JazzyListView is an extension of ListView designed to animate list item views as they become visible
ListView Animations *An Android library which allows developers to easily add animations to ListView items
Slide Expandable ListView *A better ExpandableListView, with animated expandable views for each list item
Sticky List Headers An android library for section headers that stick to the top
Android ScrollBar Panel Android ScrollBarPanel allows to attach a View to a scroll indicator like it's done in Path 2.0
Foldable Layout *Android widgets to implement folding animation
Animation Easing Functions Android Animation Easing Functions. Let's make animation more real!
Android View Animations Cute view animation collection
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Description
Clusterer Clustering in Maps v2 for Android
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Description
Easy Camera Wrapper around the android Camera class that simplifies its usage
Landscape Video Camera Powerful custom Android Camera with granular control over the video quality and filesize, restricting recordings to landscape only.
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Description
Eaze Graph An Android chart and graph library
WilliamChart Flexible charting library with nice motion capabilities
MPAndroidChart An Android chart and graph library supporting scaling and dragging by gesture
Title
Description
Shake Detector This library provides a easy way to detect a shake movement using the build-in accelerometer and fire a callback on the UI thread every times it happens
Android Face Cropper Android bitmap Face Cropper
Title
Description
Fluffy Battery-friendly background location updates for Android, using Google Play Location where available
Fused Location This project aims to bring the Fused location provider to android apps without requiring the Play Services library
Reactive Location Small library that wraps Google Play Service API in brilliant RxJava Observables reducing boilerplate to minimum
Title
Description
Twitter 4J Twitter4J is an open-sourced, mavenized and Google App Engine safe Java library for the Twitter API
Twitter Android SDK Twitter SDK for Android, using Twitter4j
Facebook Android SDK Use the Facebook SDK for Android to integrate with Facebook, help build engaging social apps
Android Social Networks Library for easy work with Facebook, Twitter, LinkedIn and Google on Android
Title
Description
Esperandro Easy SharedPreference Engine for Android
Secure Preferences Android SharedPreference wrapper that encrypts keys and values of Shared Preferences. It's not bullet proof security but rather a quick win for incrementally making your android app more secure
AES Secure Preferences Secure AES Encryiption decorated Android Shared Preferences implementation
Title
Description
Snappy DB A key-value database for Android
Cupboard Cupboard for Android is simple persistence that gets out of your way and is easy to add to your existing code base
Android SQLite Asset Helper An Android helper class to manage database creation and version management using an application's raw asset files
Sprinkles Sprinkles is a boiler-plate-reduction-library for dealing with databases in android applications
Sugar Insanely easy way to work with Android Database. http://satyan.github.com/sugar/
Title
Description
Merlin Observes network connection status & gives callbacks
Robospice RoboSpice is a modular android library that makes writing asynchronous long running tasks easy. It is specialized in network requests, supports caching and offers REST requests out-of-the box using extension modules
Android Volley Android Volley Mirror
Retrofit Type-safe REST client for Android and Java by Square, Inc
OkHttp An HTTP+SPDY client for Android and Java applications
KSOAP 2 Android Lightweight and efficient SOAP client library for the Android platform
Android Async Http An Asynchronous HTTP Library for Android
Android SSL TrustKiller Bypass SSL certificate pinning for most applications
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Description
Otto An enhanced Guava-based event bus with emphasis on Android support.
http://square.github.io/otto/
EventBus Android optimized event bus that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality
Title
Description
Robospice *RoboSpice is a modular android library that makes writing asynchronous long running tasks easy. It is specialized in network requests, supports caching and offers REST requests out-of-the box using extension modules
Bolts Android Bolts is a collection of low-level libraries designed to make developing mobile apps easier
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Description
Android Page Curl An example application for creating page curl/flip effect on Android using OpenGL ES
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Description
Butterknife View "injection" library for Android
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Description
Robotium Like Selenium, but for Android
Spoon Distributing instrumentation tests to all your Androids
Fest Android A set of FEST assertion helpers geared toward testing Android
Double Espresso A pure Gradle port of the Espresso testing utility for Android
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Description
JadX Dex to Java decompiler
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NoNonSense File Picker A file/directory-picker for android. Implemented as a library project
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Android Bluetooth SPP Bluetooth Serial Port Profile which comfortable to developer application to communication with microcontroller via bluetooth
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Description
ZXing Official ZXing ("Zebra Crossing") project home
ZXing Android Minimal Port of the ZXing Android application as a minimal Android library project, for embedding in other Android applications
ZXing Fragment Barcode scanner for Android fragments. Compatible with Android 2.1+
Barcode Scanner Barcode Scanner Libraries for Android
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Description
Quality Tools for Android This is an Android sample app + tests that will be used to work on various project to increase the quality of the Android platform
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Description
Hugo Annotation-triggered method call logging for your debug builds
Phone Home PhoneHome is a standalone library that sends logs from remote Android devices to a central server for debugging. PhoneHome requires nothing of end users
Timber A logger with a small, extensible API which provides utility on top of Android's normal Log class. http://jakewharton.github.io/timber/
Debug Log Create a simple and more understandable Android logs
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Description
Transdroid Manage your torrents from your Android device
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Conversations Conversations is an open source XMPP (formally known as Jabber) client for Android 4.0+ smart phones
Text Secure A secure text messaging application for Android
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Description
Step Counter A Step Counter for Android KitKat devices with Built-in Pedometers
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Farebot Read data from public transit cards using your NFC Android phone!