Fixed crash on older devices

Chan/src/org/floens/chan/ui/fragment/ImageViewFragment.java

@@ -108,13 +108,15 @@ public class ImageViewFragment extends Fragment implements ThumbnailImageViewCal
         item.setVisible(isVideo);
         item.setEnabled(isVideo);
 
+        if (imageView != null) {
             VideoView view = imageView.getVideoView();
             if (view != null) {
                 item.setIcon((videoSetIconToPause || view.isPlaying()) ? R.drawable.ic_action_pause
                         : R.drawable.ic_action_play);
-        }
                 videoSetIconToPause = false;
             }
+        }
+    }
 
     public void customOnOptionsItemSelected(MenuItem item) {
         if (item.getItemId() == R.id.action_image_play_state) {