If you have hardcoded strings that should be extracted into constants, you can do that in at least 2 ways:
- the hard way
- the EASY way
The hard way is to write yourself the constant and then replace it in the entire code where the string is used. And the EASY way is to use the power of Android Studio :) So in order to extract a constant you have to do the following steps:
- select the string that needs to be converted into a constant
- use CTRL + ALT + C (on Windows) or Cmd + ALT + C (on Mac OS)