SharedPreferences always empty

Question

I have an app using fragments. One of which is a PreferenceFragment, and those are all in the package "fragments".

I load up the settings fragment and can see the options, change values, and all is saved.

fragmentPrefsCurrentView fragment

public class fragmentPrefsCurrentView extends PreferenceFragment {

 @Override
    public void onCreate(final Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        addPreferencesFromResource(R.xml.prefs);

        //test
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
        boolean b = prefs.getBoolean("applicationOptionOne", false);

    }
}

The b boolean test returns the correct value.

R.xml.prefs XML file:

<PreferenceCategory
    android:title="@string/sectionname">

    <SwitchPreference android:title="Bases"
        android:defaultValue="true"
        android:key="applicationOptionOne" />

</PreferenceCategory>

Now, in another class, which is also a fragment and in the same package/folder, I am trying to access these same values but the returned value is always an empty map.

fragmentMap fragment

public class fragmentMap extends Fragment {



   @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {

        prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
        boolean b = prefs.getBoolean("applicationOptionOne", false);

        super.onActivityCreated(savedInstanceState);
    }
}

I thought maybe it's something to do with a wrong context or scope, or perhaps the preferences aren't being loaded at the point I'm trying to access them in the second fragment?

1) preferences fragment loaded up - prefs contains the correct mMap 2) fragmentMap loaded up - prefs contains empty mMap

Any thoughts? Cheers.