The author make a disclaimer in the beginning of the book:
"There are two areas where our choices differ from what you might see elsewhere in the Android community:
We use anonymous inner classes for listeners.
This is mostly a matter of opinion. We find it makes for cleaner code in the applications in this book because it puts the listener’s method implementations right where you want to see them. In high-performance contexts or large applications, anonymous inner classes may cause problems, but for most circumstances they work fine."
Statistics: Posted by g4mn0r — Thu Aug 13, 2015 10:58 pm