Android is an open source and Linux-based operating system a mobile operating system based on a modified version of the Linux kernel and other open source software, designed primarily for touchscreen devices such as smartphones and tabs.
With android we can develop a small printing application to huge database Application of any complexity and advance level.
Getting Started With Android.
The Android Game Development Kit (AGDK) is a full and complete range of tools , libraries and functions
to help you develop, optimize, launch, and iterate on high quality and modern Android Games.
AGDK is an amazing collection of tools and libraries for android Game Development.
Become an Android Developer