Is there any book available in pdf format for android development

Answer 1

Yes.

I'd have to Google it in order to obtain a link for you, so I'll leave that part of it to you! You can find nearly anything you're looking for there.

Best of luck!

Answer 2

https://www.sololearn.com/discuss/1286577/?ref=app
https://www.sololearn.com/discuss/823823/?ref=app
https://www.sololearn.com/discuss/542458/?ref=app