Make sure that fragment is attached to activity on ui thread in taskeditbackgroundloader

astrid/src/com/todoroo/astrid/activity/TaskEditFragment.java

@@ -655,6 +655,7 @@ ViewPager.OnPageChangeListener, EditNoteActivity.UpdatesChangedListener {
 
         public void onUiThread() {
             // prepare and set listener for voice-button
+            if (getActivity() != null) {
                 if (addOnService.hasPowerPack()) {
                     voiceAddNoteButton = (ImageButton) notesControlSet.getView().findViewById(
                             R.id.voiceAddNoteButton);
@@ -678,6 +679,7 @@ ViewPager.OnPageChangeListener, EditNoteActivity.UpdatesChangedListener {
 
                 loadMoreContainer();
             }
+        }
 
         @Override
         public void run() {