Start from here: http://developer.android.com/sdk/index.html
http://developer.android.com/index.html has all the details.
After nearly 9 years of being involved in desktop software development, am finally thinking of shifting to the online/mobile space. Attended a 2 week JavaEE course and planning to start learning developing on Android platform. Hopefully can shift to that domain soon.
Java EE course was good but felt I learnt the syntax and “how to do” part but not the why part. Am looking for some suggestions on learning projects for JavaEE, so if you have some cool suggestions, drop it in :)