Guarded the getActivity() call

Bug:7026011
Change-Id: Ib4f4fe97023b90472586379679e0e6ab4876fd07
diff --git a/src/com/android/contacts/detail/ContactLoaderFragment.java b/src/com/android/contacts/detail/ContactLoaderFragment.java
index 37fabb0..b3f1264 100644
--- a/src/com/android/contacts/detail/ContactLoaderFragment.java
+++ b/src/com/android/contacts/detail/ContactLoaderFragment.java
@@ -216,7 +216,7 @@
                 }
             }
             // Make sure the options menu is setup correctly with the loaded data.
-            getActivity().invalidateOptionsMenu();
+            if (getActivity() != null) getActivity().invalidateOptionsMenu();
         }
 
         @Override