setup a fragment listener after orientation change if theres none

app/src/main/java/com/simplemobiletools/gallery/fragments/PhotoFragment.java

@@ -37,6 +37,9 @@ public class PhotoFragment extends ViewPagerFragment implements View.OnClickList
 
     @Override
     public void onClick(View v) {
+        if (listener == null)
+            listener = (FragmentClickListener) getActivity();
+
         listener.fragmentClicked();
     }
 

app/src/main/java/com/simplemobiletools/gallery/fragments/VideoFragment.java

@@ -156,6 +156,9 @@ public class VideoFragment extends ViewPagerFragment
             default:
                 isFullscreen = !isFullscreen;
                 checkFullscreen();
+
+                if (listener == null)
+                    listener = (FragmentClickListener) getActivity();
                 listener.fragmentClicked();
                 break;
         }