Which is best way to define constants in android, either static class, interface or xml resource?

Question

I\'m developing an android application which uses web service to get data from server, for that I\'m having three different set of URLs to point development system, test ser

Answer 1

It’s always a good practice to extract UI strings from your app code and keep them in an external file. Android makes this easy with a resources directory in each Android project.

http://developer.android.com/training/basics/supporting-devices/languages.html