Passing Assigned Value Of A Spinner From Fragment To Fragment Within Viewpager Nullpointerexception

I've make it more simple and updated it based on the answers in my previous post: Adding Assigned Values in Spinner NullPointerException I have a MainAcitivty that uses a ViewPager

Solution 1:

Here is a simple way to communicate between fragments.

In MainActivity, keep static instances of the fragments.

publicstatic FragA fragmentA;
publicstatic FragB fragmentB;

Now if you want to access FragB from FragA, write something similar:

((MainActivity) getActivity()).fragmentB.setSomething();

And Here is a better/proper way to communicate between fragments:

http://developer.android.com/training/basics/fragments/communicating.html