Perhaps their problem is the moment when the search is made in the database. In his Fragment Override cycles of its Fragment.java to figure out just: try testing with the methods:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_x, container, false); //Your query and ListView code probably will be here
Log.i("FragmentX", "Step OnCreateView");// Try with it
return rootView;
}
Try it similarly put Log.i ... "onStart" and "onResume".
Finally cut the code in "onCreate" e put it in "onStart" for example:
@Override
public void onStart(){
super.onStart();
Log.i("FragmentX","Step OnStart");
dbManager = new DBManager(getContext());
Cursor cursor = dbManager.getAllNames();
listView = (ListView)getView().findViewById(R.id.lvNames);
adapter = new CustomCursorAdapter(getContext(),cursor,0);// your adapter
adapter.notifyDataSetChanged();
listView.setAdapter(adapter);
}