public bool ShowNextPage()
        {
            if (quizView == null)
            {
                return(false);
            }

            var nextItem = quizView.DisplayedChild + 1;

            SetProgress(nextItem);
            var count = quizView.Adapter.Count;

            if (nextItem < count)
            {
                quizView.ShowNext();
                TopekaDatabaseHelper.UpdateCategory(Activity, category);
                return(true);
            }
            MarkCategorySolved();
            return(false);
        }
 void MarkCategorySolved()
 {
     category.Solved = true;
     TopekaDatabaseHelper.UpdateCategory(Activity, category);
 }