/// <summary>
        ///
        /// </summary>
        public void LoadBooks()
        {
            if (BookLists?.ToArray().Length > 0)
            {
                return;
            }

            BookLists.Add(new Books
            {
                id              = "B1212",
                bookName        = "History of Amazon Valley",
                author          = "Ross Suarez",
                copiesAvailable = 0,
                totalCopies     = 2
            });
            BookLists.Add(new Books
            {
                id              = "B4232",
                bookName        = "Language Fundamentals",
                author          = "H S Parkmay",
                copiesAvailable = 5,
                totalCopies     = 5
            });
            SaveChanges();
        }
        public void onItemClick(View view, int position, object data)
        {
            if (data is HotReview.Reviews)
            {
                BookDiscussionDetailActivity.startActivity(this, ((HotReview.Reviews)data)._id);
            }
            else if (data is RecommendBookList.RecommendBook)
            {
                RecommendBookList.RecommendBook recommendBook = (RecommendBookList.RecommendBook)data;

                BookLists bookLists = new BookLists();
                BookLists.BookListsBean bookListsBean = new BookLists.BookListsBean();
                bookListsBean._id            = recommendBook.id;
                bookListsBean.author         = recommendBook.author;
                bookListsBean.bookCount      = recommendBook.bookCount;
                bookListsBean.collectorCount = recommendBook.collectorCount;
                bookListsBean.cover          = recommendBook.cover;
                bookListsBean.desc           = recommendBook.desc;
                bookListsBean.title          = recommendBook.title;

                SubjectBookListDetailActivity.startActivity(this, bookListsBean);
            }
        }