Android Programming: The Big Nerd Ranch Guide, Third Edition

Code Style

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.

After we introduce fragments in Chapter 7, we use them for all user interfaces.

Fragments are not an absolutely necessary tool, but we find that, when used correctly, they are a valuable tool in any Android developer’s toolkit. Once ...