This is a compilation of resources related to Android App Development.
In this post, I have given only those libraries that are used on a daily basis and is a must for every new Android developer to know. At the bottom of the post, I have also given links, where you will find libraries which are not mentioned here. Enjoy 🙂
News:
Android Weekly – a free newsletter that helps you to stay cutting-edge with your Android Development.
Tutorials:
Architecture:
Ignition – helps you getting your Android applications off the ground quickly, by offering ready-to-use components and utility classes.
GreenDroid – It is intended to make UI developments easier and consistent through your applications.
Spring For Android – an extension of the Spring Framework that aims to simplify the development of native Android applications.
DroidParts – a framework that includes DI, ORM, Logging, Rest Client and more.
ORM:
OrmLite – provides some lightweight functionality for persisting Java objects to SQL databases
Active Record for Android – lightweight persistence library for Android.
GreenDao – open source project to help Android developers working with data stored in SQLite.
Design:
Android Patterns – a set of interaction patterns that can help you design Android apps.
Google Android Design Guide – official android design guide by google.
Android App Patterns – 1225 app screenshots in 29 categories all in one.
Android 4.0 Design Startkit – some startkit Photoshop PSD’s.
Android Niceties – a collection of screenshots encompassing some of the most beautiful looking Android apps.
Android Holo Colors Generator – allows you to easily create Android components with your own colors for your Android application.
ICS Apps – icecream sandwich app screenshots.
Dependency Injection:
RoboGuice – smoothes out some of the wrinkles in your Android development and slims down your application code.
Android Annotations – it takes care of the plumbing, and lets you concentrate on what’s really important. By simplifying your code, it facilitates its maintenance.
Networking:
Loopj – an asynchronous callback-based Http client for Android.
Volley – it manages the processing and caching of network requests and it saves developers valuable time from writing the same network call/cache code again and again.
UI:
ActionBarSherlock – designed to facilitate the use of the action bar design pattern across all versions of Android with a single API.
NineOldAndroids – library for using the Honeycomb (Android 3.0) animation API on all versions of the platform back to 1.0.
Pull To Refresh – this project aims to provide a reusable Pull to Refresh widget for Android.
Android Validator – form validator library.
Progress Wheel – a custom component for Android intended for use instead of a progress bar.
Scroll Bar Panel – allows to attach a View to a scroll indicator.
View Page Indicator – widgets compatible with the ViewPager from the Android Support Library and ActionBarSherlock.
View Badger – a simple way to “badge” any given Android view at runtime.
Universal Image Loader – powerful and flexible instrument for asynchronous loading, caching and displaying images.
ColorPicker – to create color picker in preferences.
Segmented Radio Button – implementation of iPhone’s segmented control.
PhotoView – implementation of ImageView that supports zooming, by various touch gestures.
Smart Image View – ImageView replacement which allows image loading from URLs or contact address book, with caching.
Android Lock Pattern – users can define their own lock pattern ‒ which is a combination of 4+ dots.
Testing:
Android Mock – a framework for mocking interfaces and classes on the Dalvik VM.
Robotium – test automation framework that has full support for native and hybrid applications.
Tools:
Application Crash Report – ACRA – a library enabling Android Application to automatically post their crash reports to a GoogleDoc form.
Android Studio – a new Android development environment based on IntelliJ IDEA.
Dev Bytes 
Hello to all, how is all, I think every one is getting more from
this web page, and your views are fastidious designed for new
users.
WOW just what I was looking for. Came here by searching for fueled design
Has been showcased in ScoopIt, Android Development Tools
I think now more and more people will use support.v4 not use the ActionBarSherlock .
Jake Wharton is great.
Yes, I agree, more and more people are working with v4, so Sherlock is no longer needed. I have still included this, for people who want to support the lower versions. They should know, that something like this exists.
And yes, Jake Wharton is great 😀
Fab!!! Thanks for sharing
Hey! Nice post and very useful!! I added this article to my Android ZEEF, check it!! https://android.zeef.com
You might add to the list: JEPLDroid (port of JEPLayer to Android)
http://code.google.com/p/jepldroid/
JEPLayer is a simple and powerful ORM specifically focused on easy and secure management of JDBC and JTA transactions.
JEPLDroid is the port of JEPLayer to Android environment, a feature reduced version of JEPLayer removing stuff not compatible or hard to port to Android environment like JTA APIs.
A very nice library for styling and customization of the scrollbars https://github.com/AndroidAlliance/EdgeEffectOverride
stunning collection …. as a developer all these are the sole of development .
every things at same place with tutorials too…. great job 🙂 appreciated
I am really excited for these useful resources for android app development, Here i would add one more helpful resource or android app development for Toronto, Canada: android app development