Avoid Internal Getters/Setters
In native languages like C++ it's common practice to use getters (e.g.
i = getCount()) instead of accessing the field directly (
= mCount). This is an excellent habit for C++, because the compiler can
usually inline the access, and if you need to restrict or debug field access
you can add the code at any time.
On Android, this is a bad idea. Virtual method calls are expensive,
much more so than instance field lookups. It's reasonable to follow
common object-oriented programming practices and have getters and setters
in the public interface, but within a class you should always access