SharedPreferences nullPointerException when saving strings

Question

I am working launcher for android. At the moment I am working for address book(yes I want to include it to my launcher), but I am getting NullPointerException. Here

Answer 1

You can declare ShardPreference object twice. 1. class level 2. in adNumber().

so, please remove one of that and declare like this with initiate.

SharedPreferences pres = getApplicationContext().getSharedPreferences("MyPres", MODE_PRIVATE); 

and used it anywhere is you declare it on class level.