What quality resources (books/videos/websites) are there for those who want to program for android?

Question

Java

Hello, I decided to move from web development to android programming, on the web, I mainly worked as a front-end developer, but I want to work in the field of mobile application development. I would like to receive advice and also resources that would help to understand this area as best and as quickly as possible. I know the principles of OOP, though I used it in C ++ and PHP. It is desirable to give resources, where everything is considered with examples, as a supporter of the fact that learning will be good if you write a lot of code

Answer 1

developer.android.com/develop/index.html is the best and foremost resource for the android developer.
And it is also worth paying attention to this resourcetyk .

Answer 2

Look at the site, this question pops up every week.