I've got this book already (paper version), what's new in the new version? (v4)
a few years ago I bought this book because I wanted to start working with Android (2.3 was the top version at that time), unfortunately I was not able to do it. Now, I've got the chance to work with Android and I want to start making applications for version 4.0 and superior.
I know that from version 2 to 4 I know that fragments and other things were introduced in the API but I would like to know if the two books are completely different and I must buy version 4 or is there any change to buy only the "missing" chapters from version 2 to version 4?