Android for Java developer?

Question

Java

What to read or watch in order to start programming on android later versions (4+)?
I have java experience in the interprise, so I would like the material to be designed for people who already had production experience.
Googled articles and books - all very beginner friendly. It talks in detail about String and all the standard Java classes, etc. I want books / lessons without water - and mostly on android sdk.
I watched the first part of the book habrahabr.ru/company/piter/blog/250797 , everything is also quite detailed, what can you say about this one?
Maybe someone faced a similar problem of entering the anroid world? Share your experience.

Answer 1

Without water - official documentation.

Answer 2

The second time in a day ... IMHO the best book of all
Pros
- constantly updated
- for an update subscription during the year
+ - (for some plus for some minutes)
- paid
- on trackers a rather old version