A categorized directory of libraries and tools for Android
A collection of tools to easily generate assets such as launcher icons for your Android app.
Site to help aid developers in the creation of applications
IDE from Google for making Android apps
YouTube videos.
Mobile Tuts+ Android tutorials
Originally from Google labs, now at MIT, easily create Android apps
Free app creator. They make money based on advertisements.
from Android Developers
Dependency injection framework
Free course at Udacity.
Cloud-based infrastructure for testing Android apps.
Pick a primary color and an accent color get the colors for a material design palette.
A Java API for asynchronous programming with observable streams.
Display your Android device on your computer screen.