async private void CheckLibrary()
{
Collection <Book> books = new Collection <Book>
{
this.Book
};
CalilSearch.CheckBooks(books);
}
async Task <bool> AmazonSearch(AmazonBookSearch search)
{
ObservableCollection <Book> books = new ObservableCollection <Book>();
bool ret = await search.ContinueSearch(books);
if (ret)
{
addResultBook(books, ResultBookList);
SearchResultVM.CheckBooks(books);
}
return(ret);
}
async private void InitList(BookShelf bookshelf, ObservableCollection <Book> books)
{
ResultBookList = new ObservableCollection <ViewModel.SearchResultBook>();
addResultBook(books, ResultBookList);
SearchResultVM = new SearchResultVM {
BookResultList = ResultBookList
};
this.BindingContext = SearchResultVM;
listBook.ItemSelected += async(sender, e) =>
{
if (e.SelectedItem == null)
{
return;
}
((ListView)sender).SelectedItem = null;
ViewModel.SearchResultBook item = e.SelectedItem as ViewModel.SearchResultBook;
//本棚に登録済みの場合は詳細を表示しない
if (item != null && item.IsRegistBookShelf == false)
{
await Navigation.PushAsync(new BookDetailPage(bookshelf, item.CreateBook(), item.IsRegistBookShelf));
}
};
listBook.ItemAppearing += async(object sender, ItemVisibilityEventArgs e) => {
// ObservableCollection の最後が ListView の Item と一致した時に ObservableCollection にデータを追加する。
if (ResultBookList.Last() == e.Item as SearchResultBook)
{
// ObservableCollection にデータを追加する処理
stack.IsVisible = true;
await AmazonSearch(SearchContext); // 実際の処理を入れてください。
stack.IsVisible = false;
}
};
SearchResultVM.CheckBooks(books);
}