String.xml or Constants class

Question

What is better approach of the following in designing an Android app

1. To place all the String constants in res/values/Strings.xml or
2. Create a

Answer 1

I imagine a constants class would be more efficient.

However, speed shouldn't really be an issue in either case. I would recommend organizing based on what makes sense.

Constants class

Put strings constants that will be used internally, like database column names or other keys.

strings.xml

Put strings that are displayed for the user. This way you can take advantage of localization, etc.