SharedPreferences return only default value

Question

So instead of creating a database, I\'m storing the data using SharedPreference.

My code is below:

   SharedPreferences.Editor editor =          


        

Answer 1

editor.putInt("favid"+id, 1);

what's about id is equals to 0? here you are reading starting from 1

 for (int i = 1; i < 19; i++) {