View subclass naming conventions - Android

Question

I am developing a library of custom Android Views that extend the abilities of existing Views. I have noticed that some examples of this will name their class by appending Ex on the end of the class name, such as AsyncTaskEx, TextViewEx, etc. Is this a convention that [Android] developers often follow, or is there really no pattern other than personal preference?

Answer 1

Just put name of the parent class at the end of new, for example

public class YellowTextView extends TextView ...

And let IDE do other work like Content Assist, etc.