1) Slide Menu For Android :

Beautiful Animated Slide Menu for Android :

GitHub/Download :

Slide Menu For Android

2) Animated Context Menu for Android

Context-Menu.Android lets you easily add an awesome animated context menu to your Android app

GitHub/Download :

Context Menu Android

3) Material Design Navigation Drawer

NavigationDrawer-MaterialDesign is a usage example for the Material Design Navigation Drawer. It slides in from the left edge of the screen and displays the app’s main navigation options.

GitHub/Download :

Material Design Navigation Drawer

Google Play Demo App :

Demo App

4) Progress Bars with rounded Corners for Android

Android RoundCornerProgressBar is an easy to use Android library which provides customizable and colorful progress bars with rounded corners. It allows you to configure the round value, change the icon and color. You can also adjust the padding range between progress bar and progress or between image icon and progress.

GitHub/Download :

Progress Bar with Rounded Corners

5) Core Data + SQLite Replacement – Android/iOS/OS X

Realm is a mobile database that runs directly inside phones, tablets or wearables. It can save you thousands of lines of code and weeks of work, and lets you craft amazing new user experiences.

GitHub/Download :

SQLite Replacement

6) Custom Calendar Icons based on the Date selected

Dynamic Calendar is an Android library which generates custom calendar icons based on the date you provide. It allows you to change the background template of generated date icons, specify the typeface, size, position, and more.

GitHub/Download :

Custom Calender Icons

Google Play Demo App :

https://play.google.com/store/apps/details?id=com.kd.dynamic.calendar

7) Transformation Android Library

Glide Transformations provides a variety of image transformations for Glide.

GitHub/Download :

Transformation Android Library

8) Slide-to-dismiss Functionality for Android

Slidr lets you easily add slide-to-dismiss functionality to an Activity.

GitHub/Download :

Slide-To-Dismiss

9) Record Full-Resolution Videos on Android – (Requires Android 5.0+)

Telecine lets you capture full-resolution videos directly on your Android phone. No more recording controls cluttering up the video or USB debugging notification in your status bar

GitHub/Download :

Telecine

Google Play Demo App :

https://play.google.com/store/apps/details?id=com.jakewharton.telecine

10) Always-on-Top / Floating UI for Android

Tooleap is an SDK for Android that enhances your app with a floating (always-on-top) UI, thus creating a unique multitasking experience and increasing your app’s availability.

After integrating the Tooleap SDK Jar into your project, you’ll be able to create your own mini apps and provide your users with a floating bubble, and your own easily accessible side screen.

Out-of-the-Box Features:

The Bubble

Tooleap provides your app with a floating bubble. The user can drag the bubble around the screen, and even toss it around.

You can fully customize the bubble. It can show your own icon, and even display a text balloon and a notification badge.

Tapping the bubble will open the side screen along with your mini app of choice.

The Side Screen

The side screen displays your app’s content on top of the screen.

Using Tooleap Activity classes, you can display inside the side screen any content you wish, just like you’d do with a regular Android activity. No need for any special code or implementation on your behalf. In fact, you can even use your app’s existing activities (as will be explained next).

Tooleap SDK comes with a built-in web search screen. Whenever the sidescreen is displayed, your users can also access the Tooleap search screen and perform a web search.

The user can navigate between different mini-apps and the search screen, using the bottom navigation bar.

What can I do with Tooleap

The content displayed by your app inside the side screen is called a “Mini App”.

You can use the Mini Apps to enhance your applications in various ways:

Rich Notifications

Use the Notification Mini App, to display a rich notification, and allow the user to interact with your app, directly from the side screen. For example, a messaging app can pop out a rich notification. The user sees the bubble with the preview text of the notification, and replies the message right from the side screen.

Advanced Multi-Tasking

Use PopOut Mini Apps to give your users the ability to pop out a screen from your app, so they’ll use it along other applications. For example, a music app that allows the user to pop out its playback controls, so they will be only one tap away, even while using other apps.

Home Widgets

Combine the availability of Android Home Screen Widgets, with the ease of development of a regular activity screen. With Home Mini Apps, you can create a mini app available exclusively from your user’s home screen. For example, a weather app that allows its user to check today’s weather, without cluttering his home screen with an extra widget.

Super Available Apps

Integrate into the device’s screen a “sticky” mini app, that can be available on top of any app, or only on top of specific apps on the device. Use a Persistent Mini App to give your user access to your app from any screen on his device. For example, a news app that gives its user a quick access to its headlines, from any application he currently uses.

Customize the mini apps to to your needs, and add as many mini apps as you want to the side screen.

Project Page : http://www.tooleap.com/

Installation Details : http://developer.tooleap.com/sdk-installation-guide/

11) RecyclerView with Animations

RecyclerView Animators is an Android library that allows developers to easily create RecyclerView with animations.

GitHub/Download :

RecyclerView Animators

Google Play Demo App :

https://play.google.com/store/apps/details?id=jp.wasabeef.example.recyclerview

12) Native Android Samples

Sample of all Samples (SOAS) are native Android samples for beginners and experienced (API 14+) with focus on Lollipop and the Material Design Guidelines.

Here’s what the project touches so far:

– Toolbar

– Drawer

– following the updated Material Design Guidelines

– Volley (with forced Caching Option it caches regardless of Server response Headers, Memory and Disk)

– Download images using volley

– with Memory and Disk Caching

– Json

– using Gson

– ListView with a custom Adapter

– based on BaseAdapter

– SwipeToReferesh

– using SwipeRefreshLayout

– Endless Adapter

– using a custom OnScrollListener

– Fragment

– ListFragment and Fragment

– Headless Fragment

– maintain data on config changed

– Landscape, 7” and 10” Tablets specific Layouts

– Custom Views

– Palette

– Themes

– Styles

– Gradle

– Gradle Product Flavors

– Espresso tests

– Travis CI, Continuous Deployment

GitHub Download :

https://github.com/MostafaGazar/soas

13) Charts and Graphs Library for Android

HelloCharts is a charting library for Android which is compatible with API 8+ (Android 2.2). It offers several chart types with support for scaling, scrolling and animations and works best when hardware acceleration is available, so API 14+ (Android 4.0).

Features:

– Line Chart

– Cubic Lines, filled Lines, scattered Points

– Column Chart

– Grouped, stacked, negative Values

– Pie Chart

– Bubble Chart

– Combo Chart

– Columns/Lines

– Preview Charts

– for Column Chart and Line Chart

– Zoom

– pinch to zoom, double tap zoom, scroll and fling

– Custom and Auto-generated Axes

– top, bottom, left, right, inside

– Animations

GitHub/Download :

https://github.com/lecho/hellocharts-android

14) Media Indexer for Android (APK + Source Code)

Mizuu is a user friendly media center application for Android tablets and smartphones running Android 4.0.3 (API level 15) or newer. The application helps manage all your movie and TV show video files – and automatically fetches useful information about the video content, including title, plot, cover art and actors.

Features:

Indexing of movie and TV show files on your device or on Samba (CIFS / SMB) and UPnP / DLNA compatible devices.View actor details for movies, including biography, filmography and photos.Many options to customize and personalize the application.Enjoy popular video content from YouTube, Reddit as well as the latest TED Talks.Browse details and watch trailers for upcoming and popular movies with online search.Different widgets for displaying your collections on the home screen.Synchronizes indexed content with your Trakt.tv account

GitHub/Download :

https://github.com/MizzleDK/Mizuu

15) Reachability on Android

Reachability allows you to easily access the top of the screen in Android, like in iPhone 6 and 6 Plus.

GitHub/Download :

https://github.com/sakebook/Reachability

16) Awesome UI/UX Libraries for Android

Awesome Android UI is a curated list of awesome UI/UX libraries for Android.

GitHub/Download :

https://github.com/wasabeef/awesome-android-ui

17) Image Picker for Android (APK + Source Code)

Image Searcher allows you to send images found on Google image search directly from your favorite apps.

GitHub/Download :

https://github.com/DSteve595/Image-Searcher

18) Material Design for Android

LollipopShowcase is a showcase of Material Design for Android and some cool new stuff in Lollipop.

GitHub/Download :

https://github.com/mikepenz/LollipopShowcase

Google Play Demo App:

https://play.google.com/store/apps/details?id=com.mikepenz.lollipopshowcase.sample

19) Powerful Icon Library for Android

Android Iconics allows you to use almost any alternative icon font in your projects. One basic function of this library is the feature to drop in new typefaces on the go. The default font of this project is FontAwesome, but you can create and add as many as you like

GitHub/Download :

https://github.com/mikepenz/Android-Iconics

Google Play Demo App :

https://play.google.com/store/apps/details?id=com.mikpenz.iconics.sample

20) Live Wallpaper for Android (APK + Source Code)

Muzei is a live wallpaper that gently refreshes your home screen each day with famous works of art. It also recedes into the background, blurring and dimming artwork to keep your icons and widgets in the spotlight. Simply double touch the wallpaper or open the Muzei app to enjoy and explore the artwork in its full glory.Alternatively, you can choose your favorite photos from your own gallery or other apps to use on your home screen. To keep your wallpaper fresh, Muzei will rotate through your favorite photos every few hours.Muzei also includes a watch face for Android Wear, so you can see your latest wallpaper right on your wrist!Muzei offers a simple API that allows you to build your own wallpaper source.

GitHub/Download :

Google Play Demo App :

21) Face Recognition for AndroidMasaccio is an awesome Android library which automatically detects the presence of faces in images and crop them accordingly to achieve the best visual result.

GitHub/Download :

22) Selectable Rounded ImageView for Android

SelectableRoundedImageView is an Android ImageView that supports different radiuses on each corner. It also supports oval (and circle) shape and border. This would be especially useful for using inside CardView which should be rounded only at top left and top right corners

GitHub/Download :

https://github.com/pungrue26/SelectableRoundedImageView

Google Play Demo App :

https://play.google.com/store/apps/details?id=com.joooonho

23) Twitter Client for Android (APK + Source Code)

Twidere is a powerful Twitter client for Android 1.6+, which gives you a full holo experience and nearly all features of Twitter.

GitHub/Download :

https://github.com/TwidereProject/Twidere-Android

Google Play Demo App:

https://play.google.com/store/apps/details?id=org.mariotaku.twidere

24) Front-end Framework based on Material Design

Materialize is a modern responsive front-end framework based on Material Design which simplifies life for developers and the users they serve.

GitHub/Download :

https://github.com/Dogfalo/materialize

25) Material Interaction – 100% Pure Awesomeness

Interactive Experiences for Google’s Material Design Principles by Jongmin Kim, UX Engineer at Google

Demo / Project Page:

http://material.cmiscm.com/

Video / Read and see more about Jongmin Kim:

http://blog.cmiscm.com/?cat=7

http://cmiscm.com/#/handicraft/84

26) Interactive Paging Indicator Widget for Android

PagerSlidingTabStrip is an interactive indicator to navigate between the different pages of a ViewPager.

GitHub/Download :

https://github.com/jpardogo/PagerSlidingTabStrip

Google Play Demo App :

https://play.google.com/store/apps/details?id=com.astuetz.viewpager.extensions.sample&hl=en

27) Material Design Colors for Android

Android-Material-Design-Colors provides color definitions of the Material Design.

GitHub/Download :

https://github.com/wada811/Android-Material-Design-Colors

28) Secure Calls for Android (APK + Source Code)

RedPhone is a free call app that makes private communication simple and offers free, worldwide end-to-end encryption for your calls, securing your conversations, so that nobody can listen in.

GitHub/Download :

https://github.com/WhisperSystems/RedPhone/wiki

Google Play Demo App :

https://play.google.com/store/apps/details?id=org.thoughtcrime.redphone

29) Android Secure Text Messaging (APK + Source Code)

TextSecure is a free messaging app that allows you to take back your privacy while easily communicating with friends.

Using TextSecure, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media or attachments all with complete privacy. The server never has access to any of your communication and never stores any of your data

GitHub/Download :

https://github.com/WhisperSystems/TextSecure

Google Play Demo App:

https://play.google.com/store/apps/details?id=org.thoughtcrime.securesms

30) Android ViewPager Transformer

ViewPagerTransforms is a library which contains common animations needed for transforming ViewPager scrolling on Android v13+.

This library is a rewrite of the JazzyViewPager library and owes credit of the animation concepts directly to its source. The purpose of this rewrite is to provide an easier to use and extend implementation of ViewPager animations.

GitHub/Download :

https://github.com/ToxicBakery/ViewPagerTransforms

31) Circular Progress Button for Android

Circular-Progress-Button can morph to circular indeterminate or integer progress. After the progress is completed you can morph to success or error state.

GitHub/Download :

https://github.com/dmytrodanylyk/circular-progress-button